Beam indication for wireless communication
By implementing beam indication and transmission power management at UE and base station levels, the solution optimizes beam patterns and power settings, addressing suboptimal performance in non-terrestrial networks and enhancing communication efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- LENOVO (BEIJING) LTD
- Filing Date
- 2024-02-05
- Publication Date
- 2026-07-09
Smart Images

Figure CN2024075941_09072026_PF_FP_ABST
Abstract
Description
BEAM INDICATION FOR WIRELESS COMMUNICATIONTECHNICAL FIELD
[0001] The present disclosure relates to wireless communications, and more specifically to a user equipment, a base station, apparatuses and methods for beam indication for wireless communication.BACKGROUND
[0002] A wireless communications system may include one or multiple network communication devices, such as base stations, which may be otherwise known as an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. Each network communication devices, such as a base station may support wireless communications for one or multiple user communication devices, which may be otherwise known as user equipment (UE) , or other suitable terminology. The wireless communications system may support wireless communications with one or multiple user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) . Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G) ) .
[0003] Some wireless communication system, such as non-terrestrial networks may include wireless devices that operate above the Earth’s surface, such as satellites (e.g., low Earth orbit (LEO) satellites, medium Earth orbit (MEO) satellites, geostationary orbit (GEO) satellites) , high-altitude platforms (HAPS) , or drones. These wireless devices may support seamless coverage for other wireless device (e.g., devices of a terrestrial network) , such as base station and UEs, including providing coverage to remote areas with wireless device that are out of coverage from terrestrial networks. With non-terrestrial networks, some UEs may be connected to both terrestrial and non-terrestrial networks. It may be desirable to improve wireless communication for non-terrestrial networks, including satellites that may support functionalities of base stations.SUMMARY
[0004] Various aspects of the present disclosure relate to a UE, a base station (BS) , apparatuses and methods for beam indication for wireless communication. In a first aspect, a UE comprises at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to: receive a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam identifier (ID) , a beam width, or a reference signal (RS) index; identify one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one transmission comprises data or RS for the duration, and communicate with a base station based at least in part on one or more of the spatial domain information or the transmission power information. By implementing the embodiments of the present disclosure, a solution of beam indication for wireless communication can be provided, so that a beam pattern, beam width and / or transmission power generated by a base station (such as a satellite) can be provided to UEs, thereby improving performance of the wireless communication improving performance of the wireless communication.
[0005] In some implementations of the method and apparatuses described herein, the duration may be indicated by a periodic configuration, and wherein the periodic configuration may comprise one or more of: a periodicity of spatial domain information or transmission power information; an offset with respect to a start of the spatial domain information or transmission power information; or a duration of the spatial domain information or transmission power information.
[0006] In some implementations of the method and apparatuses described herein, the duration may be indicated by a periodic configuration, and wherein the periodic configuration may comprise one or more of: a first number indicating a total number of a plurality of sub-areas in a geographical area to be served by a satellite, wherein the satellite serves the geographical area; a second number indicating a plurality of sub-areas which are to be served simultaneously by the satellite in a sub-area group; or at least one service time for at least one sub-area group.
[0007] In some implementations of the method and apparatuses described herein, the duration may be determined based on a sub-area group index.
[0008] In some implementations of the method and apparatuses described herein, the duration may be indicated by an aperiodic configuration, and wherein the aperiodic configuration may comprise one or more of: a starting position of spatial domain information or transmission power information; or a duration of the spatial domain information or transmission power information.
[0009] In some implementations of the method and apparatuses described herein, the starting position may be one of: after the reception of the signaling by a configured or predefined offset; or an end of a nearest periodic duration after reception of the aperiodic configuration.
[0010] In some implementations of the method and apparatuses described herein, a periodic configuration may be associated with a configuration index; or an aperiodic configuration may be associated with a configuration index.
[0011] In some implementations of the method and apparatuses described herein, the configuration index may further indicate at least one of the beam ID, the beam width, the RS index, or a transmission power value.
[0012] In some implementations of the method and apparatuses described herein, the configuration index may be determined by an associated RS index or an associated beam ID.
[0013] In some implementations of the method and apparatuses described herein, the duration may be based on a subcarrier spacing (SCS) , wherein the SCS may be configured or determined based on a frequency band.
[0014] In some implementations of the method and apparatuses described herein, the transmission power value may be determined by at least one of the beam ID, the beam width, or the RS index.
[0015] In some implementations of the method and apparatuses described herein, a plurality of configurations may be transmitted to the UE, and a configuration of the plurality of configurations may be associated with one or more of a respective configuration index, a respective RS index, or a respective beam ID.
[0016] In some implementations of the method and apparatuses described herein, an association between the configuration index, the spatial domain information and the transmission power information may be configured or predefined.
[0017] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the UE to: receive a signaling indicating application of the configuration via at least one of a radio resource control (RRC) signaling, a medium access control (MAC) control element (CE) , group common downlink control information (DCI) , or a scheduling DCI.
[0018] In some implementations of the method and apparatuses described herein, an offset between reception of the indication and application of the indication may be predefined or configured.
[0019] In some implementations of the method and apparatuses described herein, the configuration may be deactivated by reception of another configuration or after an expiration of a configured timer; or one or more of the plurality of configurations may be activated or deactivated simultaneously.
[0020] In some implementations of the method and apparatuses described herein, a configuration of the plurality of configurations may be applied to different time domain resources or overlapped time domain resources.
[0021] In some implementations of the method and apparatuses described herein, the configuration may be cell-specific or UE-specific.
[0022] In some implementations of the method and apparatuses described herein, a configuration of the plurality of configurations may be associated with a priority indicator; or a priority for a configuration of the plurality of configurations may be determined by the configuration index.
[0023] In some implementations of the method and apparatuses described herein, the aperiodic configuration may have higher priority than the periodic configuration; or a later configuration may have a higher priority than a previous configuration.
[0024] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the UE to: transmit a report comprising at least one of a traffic type, a latency requirement, a data volume, a distribution of UEs, positioning related information, a UE type, UE max transmission power, a UE antenna type, a UE polarization type, or a UE coverage level.
[0025] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the UE to: transmit a report comprising at least one of a recommended satellite transmission power, a recommended beam width, preferred serving time, or preferred uplink transmission power.
[0026] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the UE to: transmit a plurality of channel state information (CSI) corresponding to different beam widths and transmission powers.
[0027] In some implementations of the method and apparatuses described herein, CSI of the plurality of CSI may comprise at least one of channel quality information (CQI) , a rank indicator (RI) , a reference signal received power (RSRP) , a reference signal received quality (RSRQ) , a signal to interference noise ratio (SINR) ; and the plurality of CSI are based on a plurality of RS transmission.
[0028] In some implementations of the method and apparatuses described herein, a differential value may be reported for CSI associated with at least one RS transmission.
[0029] In some implementations of the method and apparatuses described herein, a priority may be determined for reporting the CSI, and the priority may be based on at least one of a reporting metric, a cell ID, the report being periodic or aperiodic.
[0030] In a second aspect of the solution, a BS comprises at least one memory; and at least one processor coupled with the at least one memory and configured to cause the BS to: determine at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; transmit a signaling indicating the at least one of spatial domain information or transmission power information; and communicate with a UE based at least in part on one or more of the spatial domain information or the transmission power information. By implementing the embodiments of the present disclosure, a solution of beam indication for wireless communication can be provided, so that a beam pattern, beam width, and / or transmission power generated by a base station (such as a satellite) can be provided to UEs, thereby improving performance of the wireless communication.
[0031] In some implementations of the method and apparatuses described herein, the duration may be indicated by a periodic configuration, and wherein the periodic configuration may comprise one or more of: a periodicity of spatial domain information or transmission power information; an offset with respect to a start of the spatial domain information or transmission power information; or a duration of the spatial domain information or transmission power information.
[0032] In some implementations of the method and apparatuses described herein, the duration may be indicated by a periodic configuration, and wherein the periodic configuration may comprise one or more of: a first number indicating a total number of a plurality of sub-areas in a geographical area to be served by a satellite, wherein the satellite serves the geographical area; a second number indicating a plurality of sub-areas which are to be served simultaneously by the satellite in a sub-area group; or at least one service time for at least one sub-area group.
[0033] In some implementations of the method and apparatuses described herein, the duration may be determined based on a sub-area group index.
[0034] In some implementations of the method and apparatuses described herein, the duration may be indicated by an aperiodic configuration, and wherein the aperiodic configuration may comprise one or more of: a starting position of spatial domain information or transmission power information; or a duration of the spatial domain information or transmission power information.
[0035] In some implementations of the method and apparatuses described herein, the starting position may be after the reception of the signaling by a configured or predefined offset or an end of a nearest periodic duration after reception of the aperiodic configuration.
[0036] In some implementations of the method and apparatuses described herein, a periodic configuration may be associated with a configuration index; or an aperiodic configuration may be associated with a configuration index.
[0037] In some implementations of the method and apparatuses described herein, the configuration index may further indicate at least one of the beam ID, the beam width, the RS index, or a transmission power value.
[0038] In some implementations of the method and apparatuses described herein, the configuration index may be determined by an associated RS index or an associated beam ID.
[0039] In some implementations of the method and apparatuses described herein, the duration may be based on a SCS, wherein the SCS is configured or determined based on a frequency band.
[0040] In some implementations of the method and apparatuses described herein, the transmission power value may be determined by at least one of the beam ID, the beam width, or the RS index.
[0041] In some implementations of the method and apparatuses described herein, a plurality of configurations may be transmitted to the UE, and a configuration of the plurality of configurations may be associated with one or more of a respective configuration index, a respective RS index, or a respective beam ID.
[0042] In some implementations of the method and apparatuses described herein, an association between the configuration index, the spatial domain information and the transmission power information may be configured or predefined.
[0043] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the UE to: receive a signaling indicating application of the configuration via at least one of a RRC signaling, a MAC CE, group common DCI, or a scheduling DCI.
[0044] In some implementations of the method and apparatuses described herein, an offset between reception of the indication and application of the indication may be predefined or configured.
[0045] In some implementations of the method and apparatuses described herein, the configuration may be deactivated by reception of another configuration or after an expiration of a configured timer; or one or more of the plurality of configurations may be activated or deactivated simultaneously.
[0046] In some implementations of the method and apparatuses described herein, a configuration of the plurality of configurations may be applied to different time domain resources or overlapped time domain resources.
[0047] In some implementations of the method and apparatuses described herein, the configuration may be cell-specific or UE-specific.
[0048] In some implementations of the method and apparatuses described herein, a configuration of the plurality of configurations may be associated with a priority indicator; or a priority for a configuration of the plurality of configurations may be determined by the configuration index.
[0049] In some implementations of the method and apparatuses described herein, the aperiodic configuration may have higher priority than the periodic configuration; or a later configuration may have a higher priority than a previous configuration.
[0050] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the BS to: receive a report comprising at least one of a traffic type, a latency requirement, a data volume, a distribution of UEs, positioning related information, a UE type, UE max transmission power, a UE antenna type, a UE polarization type, or a UE coverage level.
[0051] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the BS to: receive a report comprising at least one of a recommended satellite transmission power, a recommended beam width, preferred serving time, or preferred uplink transmission power.
[0052] In some implementations of the method and apparatuses described herein, the processor may be further configured to cause the BS to: receive a plurality of CSI corresponding to different beam widths and transmission powers.
[0053] In some implementations of the method and apparatuses described herein, CSI of the plurality of CSI may comprise at least one of CQI, a RI, a RSRP, a RSRQ, a SINR; and the plurality of CSI are based on a plurality of RS transmission.
[0054] In some implementations of the method and apparatuses described herein, a differential value may be reported for CSI associated with at least one RS transmission.
[0055] In some implementations of the method and apparatuses described herein, a priority may be determined for reporting the CSI, and the priority may be based on at least one of a reporting metric, a cell ID, the report being periodic or aperiodic.
[0056] In a third aspect of the solution, a processor for wireless communication comprises: at least one memory; and a controller coupled with the at least one memory and configured to cause the controller to: receive a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; identify one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one transmission comprises data or RS for the duration, and communicate with a base station based at least in part on one or more of the spatial domain information or the transmission power information.
[0057] In a fourth aspect of the solution, a processor for wireless communication comprises: at least one memory; and a controller coupled with the at least one memory and configured to cause the controller to: determine at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; transmit a signaling indicating the at least one of spatial domain information or transmission power information; and communicate with a UE based at least in part on one or more of the spatial domain information or the transmission power information.
[0058] In a fifth aspect of the solution, a method performed by a UE described herein comprises: receiving a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; identifying one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one reception or transmission comprises data or RS for the duration, and communicating with a base station based at least in part on one or more of the spatial domain information or the transmission power information.
[0059] In a sixth aspect of the solution, a method performed by a BS described herein comprises: determining at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; transmitting a signaling indicating the at least one of spatial domain information or transmission power information; and communicating with a UE based at least in part on one or more of the spatial domain information or the transmission power information.
[0060] It is to be understood that the summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0061] FIG. 1 illustrates an example of a wireless communications system that supports a solution for beam indication for wireless communication in accordance with aspects of the present disclosure.
[0062] FIG. 2 illustrates an example signaling procedure for beam indication for wireless communication in accordance with aspects of the present disclosure.
[0063] FIG. 3 illustrates an example beam sweeping pattern in accordance with aspects of the present disclosure.
[0064] FIG. 4 illustrates another example beam sweeping pattern in accordance with aspects of the present disclosure.
[0065] FIG. 5 illustrates an example periodic configuration in accordance with aspects of the present disclosure.
[0066] FIG. 6 illustrates an example aperiodic configuration in accordance with aspects of the present disclosure.
[0067] FIGS. 7-8 illustrate examples of devices for beam indication for wireless communication in accordance with aspects of the present disclosure.
[0068] FIGS. 9-10 illustrate examples of processors for beam indication for wireless communication in accordance with aspects of the present disclosure.
[0069] FIGS. 11-12 illustrate flowcharts of methods for beam indication for wireless communication in accordance with aspects of the present disclosure.DETAILED DESCRIPTION
[0070] Principles of the present disclosure will now be described with reference to some embodiments. It is to be understood that these embodiments are described for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. The disclosure described herein may be implemented in various manners other than the ones described below.
[0071] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0072] References in the present disclosure to “one embodiment, ” “an example embodiment, ” “an embodiment, ” “some embodiments, ” and the like indicate that the embodiment (s) described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment (s) . Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0073] It shall be understood that although the terms “first” and “second” or the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another element. For example, a first element could also be termed as a second element, and similarly, a second element could also be termed as a first element, without departing from the scope of embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0074] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.
[0075] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as, 5G NR, long term evolution (LTE) , LTE-advanced (LTE-A) , wideband code division multiple access (WCDMA) , high-speed packet access (HSPA) , narrow band internet of things (NB-IoT) , and so on. Further, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will also be future type communication technologies and systems in which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned systems.
[0076] As used herein, the term “network device” generally refers to a node in a communication network via which a terminal device can access the communication network and receive services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , a radio access network (RAN) node, an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a remote radio unit (RRU) , a radio header (RH) , an infrastructure device for a V2X (vehicle-to-everything) communication, a transmission and reception point (TRP) , a reception point (RP) , a remote radio head (RRH) , a relay, an integrated access and backhaul (IAB) node, a low power node such as a femto BS, a pico BS, and so forth, depending on the applied terminology and technology.
[0077] As used herein, the term “terminal device” generally refers to any end device that may be capable of wireless communications. By way of example rather than a limitation, a terminal device may also be referred to as a communication device, a user equipment (UE) , an end user device, a subscriber station (SS) , an unmanned aerial vehicle (UAV) , a portable subscriber station, a mobile station (MS) , or an access terminal (AT) . The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet, a wearable terminal device, a personal digital assistant (PDA) , a portable computer, a desktop computer, an image capture terminal device such as a digital camera, a gaming terminal device, a music storage and playback appliance, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , a USB dongle, a smart device, wireless customer-premises equipment (CPE) , an internet of things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device (for example, a remote surgery device) , an industrial device (for example, a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. In the following description, the terms: “terminal device, ” “communication device, ” “terminal, ” “user equipment” and “UE, ” may be used interchangeably.
[0078] Aspects of the present disclosure are described in the context of a wireless communications system.
[0079] FIG. 1 illustrates an example of a wireless communications system 100 for multicast or broadcast service continuity in accordance with aspects of the present disclosure. The wireless communications system 100 may include one or more network entities 102 (also referred to as network equipment (NE) ) , one or more terminal devices or UEs 104, a core network 106, and a packet data network 108. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE-advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a 5G network, such as an NR network. In other implementations, the wireless communications system 100 may be a combination of a 4G network and a 5G network, or other suitable radio access technology including institute of electrical and electronics engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA) , frequency division multiple access (FDMA) , or code division multiple access (CDMA) , etc.
[0080] The one or more network entities 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the network entities 102 described herein may be or include or may be referred to as a network node, a base station (BS) , a network element, a radio access network (RAN) node, a base transceiver station, an access point, a NodeB, an eNodeB (eNB) , a next-generation NodeB (gNB) , or other suitable terminology. A network entity 102 and a UE 104 may communicate via a communication link 110, which may be a wireless or wired connection. For example, a network entity 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface.
[0081] In non-terrestrial networks (NTN) scenarios, a network entity 102 may be implemented as a satellite. A network entity 102 in form of a satellite can directly communicate to UE 104 using NR / LTE Uu interface. The satellite may be a transparent satellite or a regenerative satellite. For NTN with a transparent satellite, a base station on earth may communicate with a UE via the satellite. For example, a communication link 110 between the satellite and the UE 104, a communication link 110 between the satellite and a base station on earth, and a communication link 116 between the base station on earth and core network 106 may be used for the NTN transparent mode. For NTN with a regenerative satellite, the base station may be on board and directly communicate with the UE. For example, a communication link 110 between the satellite and the UE 104, and a communication link 116 between the satellite (with full or part of an eNB / gNB on board) and core network 106 may be used for the NTN regenerative mode.
[0082] A network entity 102 may provide a geographic coverage area 112 for which the network entity 102 may support services (e.g., voice, video, packet data, messaging, broadcast, etc. ) for one or more UEs 104 within the geographic coverage area 112. For example, a network entity 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc. ) according to one or multiple radio access technologies. In some implementations, a network entity 102 may be moveable, for example, a satellite associated with a non-terrestrial network. In some implementations, different geographic coverage areas 112 associated with the same or different radio access technologies may overlap, but the different geographic coverage areas 112 may be associated with different network entities 102. Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0083] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a mobile device, a wireless device, a remote device, a remote unit, a handheld device, or a subscriber device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an internet-of-things (IoT) device, an internet-of-everything (IoE) device, or machine-type communication (MTC) device, among other examples. In some implementations, a UE 104 may be stationary in the wireless communications system 100. In some other implementations, a UE 104 may be mobile in the wireless communications system 100.
[0084] The one or more UEs 104 may be devices in different forms or having different capabilities. Some examples of UEs 104 are illustrated in Fig. 1. A UE 104 may be capable of communicating with various types of devices, such as the network entities 102, other UEs 104, or network equipment (e.g., the core network 106, the packet data network 108, a relay device, an integrated access and backhaul (IAB) node, or another network equipment) , as shown in Fig. 1. Additionally, or alternatively, a UE 104 may support communication with other network entities 102 or UEs 104, which may act as relays in the wireless communications system 100.
[0085] A UE 104 may also be able to support wireless communication directly with other UEs 104 over a communication link 114. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link 114 may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.
[0086] A network entity 102 may support communications with the core network 106, or with another network entity 102, or both. For example, a network entity 102 may interface with the core network 106 through one or more backhaul links 116 (e.g., via an S1, N2, N2, or another network interface) . The network entities 102 may communicate with each other over the backhaul links 116 (e.g., via an X2, Xn, or another network interface) . In some implementations, the network entities 102 may communicate with each other directly (e.g., between the network entities 102) . In some other implementations, the network entities 102 may communicate with each other or indirectly (e.g., via the core network 106) . In some implementations, one or more network entities 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC) . An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs) .
[0087] In some implementations, a network entity 102 may be configured in a disaggregated architecture, which may be configured to utilize a protocol stack physically or logically distributed among two or more network entities 102, such as an integrated access backhaul (IAB) network, an open radio access network (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance) , or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN) ) . For example, a network entity 102 may include one or more of a central unit (CU) , a distributed unit (DU) , a radio unit (RU) , a RAN intelligent controller (RIC) (e.g., a near-real time RIC (Near-RT RIC) , a non-real time RIC (Non-RT RIC) ) , a service management and orchestration (SMO) system, or any combination thereof.
[0088] An RU may also be referred to as a radio head, a smart radio head, a remote radio head (RRH) , a remote radio unit (RRU) , or a transmission reception point (TRP) . One or more components of the network entities 102 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 102 may be located in distributed locations (e.g., separate physical locations) . In some implementations, one or more network entities 102 of a disaggregated RAN architecture may be implemented as virtual units (e.g., a virtual CU (VCU) , a virtual DU (VDU) , a virtual RU (VRU) ) .
[0089] Split of functionality between a CU, a DU, and an RU may be flexible and may support different functionalities depending upon which functions (e.g., network layer functions, protocol layer functions, baseband functions, radio frequency functions, and any combinations thereof) are performed at a CU, a DU, or an RU. For example, a functional split of a protocol stack may be employed between a CU and a DU such that the CU may support one or more layers of the protocol stack and the DU may support one or more different layers of the protocol stack. In some implementations, the CU may host upper protocol layer (e.g., a layer 3 (L3) , a layer 2 (L2) ) functionality and signaling (e.g., radio resource control (RRC) , service data adaption protocol (SDAP) , packet data convergence protocol (PDCP) ) . The CU may be connected to one or more DUs or RUs, and the one or more DUs or RUs may host lower protocol layers, such as a layer 1 (L1) (e.g., physical (PHY) layer) or an L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU.
[0090] Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU and an RU such that the DU may support one or more layers of the protocol stack and the RU may support one or more different layers of the protocol stack. The DU may support one or multiple different cells (e.g., via one or more RUs) . In some implementations, a functional split between a CU and a DU, or between a DU and an RU may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU, a DU, or an RU, while other functions of the protocol layer are performed by a different one of the CU, the DU, or the RU) .
[0091] A CU may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU may be connected to one or more DUs via a midhaul communication link (e.g., F1, F1-c, F1-u) , and a DU may be connected to one or more RUs via a fronthaul communication link (e.g., open fronthaul (FH) interface) . In some implementations, a midhaul communication link or a fronthaul communication link may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 102 that are in communication via such communication links.
[0092] The core network 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The core network 106 may be an evolved packet core (EPC) , or a 5G core (5GC) , which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management functions (AMF) ) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a packet data network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc. ) for the one or more UEs 104 served by the one or more network entities 102 associated with the core network 106.
[0093] The core network 106 may communicate with the packet data network 108 over one or more backhaul links 116 (e.g., via an S1, N2, N3, or another network interface) . The packet data network 108 may include an application server 118. In some implementations, one or more UEs 104 may communicate with the application server 118. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the core network 106 via a network entity 102. The core network 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server 118 using the established session (e.g., the established PDU session) . The PDU session may be an example of a logical connection between the UE 104 and the core network 106 (e.g., one or more network functions of the core network 106) .
[0094] In the wireless communications system 100, the network entities 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers) ) to perform various operations (e.g., wireless communications) . In some implementations, the network entities 102 and the UEs 104 may support different resource structures. For example, the network entities 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the network entities 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the network entities 102 and the UEs 104 may support various frame structures (i.e., multiple frame structures) . The network entities 102 and the UEs 104 may support various frame structures based on one or more numerologies.
[0095] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a normal cyclic prefix. In some implementations, the first numerology (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.
[0096] A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames) . Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.
[0097] Additionally or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols) . In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing) , a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and the number of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., μ=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.
[0098] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or multiple operating frequency bands, such as frequency range designations FR1 (410 MHz –7.125 GHz) , FR2 (24.25 GHz –52.6 GHz) , FR3 (7.125 GHz –24.25 GHz) , FR4 (52.6 GHz –114.25 GHz) , FR4a or FR4-1 (52.6 GHz –71 GHz) , and FR5 (114.25 GHz –300 GHz) . In some implementations, the network entities 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the network entities 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data) . In some implementations, FR2 may be used by the network entities 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.
[0099] FR1 may be associated with one or multiple numerologies (e.g., at least three numerologies) . For example, FR1 may be associated with a first numerology (e.g., μ=0) , which includes 15 kHz subcarrier spacing; a second numerology (e.g., μ=1) , which includes 30 kHz subcarrier spacing; and a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing. FR2 may be associated with one or multiple numerologies (e.g., at least 2 numerologies) . For example, FR2 may be associated with a third numerology (e.g., μ=2) , which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., μ=3) , which includes 120 kHz subcarrier spacing.
[0100] With the evolution of communication networks, some works may need to be performed to (1) define additional reference satellite payload parameters assuming power sharing among satellite beams or different satellite beam patterns / size (i.e. wide or narrow) across the satellite footprint, such that satellite beams may not all be simultaneously active or may be active below the nominal EIRP density per satellite beam due to limited power and limited feeder link bandwidth; and (2) to study and if needed specify solutions, including link level enhancements for FR1-non-terrestrial network (NTN) (e.g. for PDCCH, PDSCH) and / or system level enhancements for FR1-NTN and / or FR2-NTN, allowing dynamic and flexible power sharing between satellite beams or different satellite beam patterns / size (i.e. wide or narrow) across the satellite footprint.
[0101] In general, beam width / power generated by a satellite may change from time to time. For a footprint, an area or a sub-area covered by the satellite, beams may be on or off at different time instances. Spatial domain filter, beam width or DL Tx power for a footprint, an area or a sub-area may also be different at different time instances. However, there is no solutions for indicating the beam pattern (such as on-off state, beam width, spatial domain filter and transmission power) to UEs in NTN. Therefore, some embodiments of the present disclosure propose a solution for beam indication for wireless communication. By implementing the embodiments of the present disclosure, a solution of beam indication for wireless communication can be provided, and thus a beam pattern, spatial domain filter, beam width and / or transmission power generated by a satellite can be provided to UEs, thereby improving performance of the wireless device and a reliability of wireless communication.
[0102] FIG. 2 illustrates an example signaling procedure 200 for beam indication for wireless communication in accordance with aspects of the present disclosure. As shown in FIG. 2, a BS 102 may correspond to the network entity 102 (especially a moveable network entity such as a satellite) in FIG. 1. In the example signaling procedure 200, the BS 102 determines (202) spatial domain information for a duration, transmission power information for the duration, or both the spatial domain information and the transmission power information for the duration. In some embodiments, the spatial domain information may include a beam ID, a beam width, a RS index, or any combination of them.
[0103] Then, the BS 102 transmits (204) a signaling 208 to the UE 104. The signaling 208 may indicate the spatial domain information, the transmission power information, or both of them determined by the BS 102. Accordingly, the UE 104 receives (206) the signaling 208 from the BS 102. Based on the signaling 208, for example, the UE 104 identifies (210) the spatial domain information for receiving or transmitting at least one transmission, a transmission power value for receiving or transmitting at least one transmission, or both of the spatial domain information and the transmission power value. In some embodiments, the at least one reception or transmission to be performed by the UE 104 may be reception or transmission of data or reference signals for the duration. Afterwards, the UE 104 communicates (212) with the BS 102 based at least in part on one or more of the spatial domain information or the transmission power information. The BS 102 communicates (214) with the UE 104 and based at least in part on one or more of the spatial domain information or the transmission power information.
[0104] For better understanding of the spatial domain information or the transmission power information as discussed above, now the following description will refer to FIGS. 3 and 4. FIG. 3 illustrates an example beam sweeping pattern 300 in accordance with aspects of the present disclosure. As shown in FIG. 3, a satellite may serve a large geographical area. The geographical area may be divided into multiple footprints or sub-areas. However, due to the restriction of feeder link bandwidth and satellite power limit, only part of footprints can be served for a time instance. Thus, the footprints may be served by the satellite in a sweeping way. For example, a sweeping pattern may depend on a UE distribution, one or more traffic characteristics, etc.
[0105] As further shown in FIG. 3 and merely as an example, a whole geographical area served by a satellite may be divided into seven footprints, and each footprint may be also referred to as a sub-area hereinafter. At time instance 302, the footprints 310, 312 and 314 can be served by the satellite. At time instance 304, the footprints 320 and 322 can be served by the satellite. At time instance 306, the footprints 330 and 332 can be served by the satellite. By sweeping according to the beam sweeping pattern 300, the whole geographical area can be served during a period.
[0106] FIG. 4 illustrates another example beam sweeping pattern 400 in accordance with aspects of the present disclosure. As shown in FIG. 4, at time instance 402, the footprints 410 and 412 can be served by the satellite. At time instance 404, the footprints 420 and 422 can be served by the satellite. At time instance 406, the footprints 430 and 432 can be served by the satellite. At time instance 408, the footprint 440 can be served by the satellite. By sweeping according to the beam sweeping pattern 400, the whole geographical area can be served during a period. It is to be understood that the beam sweeping patterns 300 and 400 are only examples without suggesting any limitation to the scope of the present disclosure. There may be any other beam sweeping patterns in various embodiments of the present disclosure.
[0107] In some example embodiments, a semi-static beam sweeping pattern for all the footprints may be adopted for a UE in an RRC idle state. A periodicity, an offset, a duration, or any combination of them can be predefined, can be blind decoded by the UE, or can be configured in system information (e.g., system information block 1, SIB1) . In some situations, synchronization signal / physical broadcast channel (PBCH) block (SSB) transmission, SIB1 transmission, random access channel (RACH) transmission may happen in the determined duration periodically. During the duration, it may be considered that the satellite is accessible. Thus, the periodic duration can be associated with an “on” state of the service of the satellite.
[0108] In some example embodiments, for a UE in an RRC connected state, the beam pattern may be dynamically changed based on the distribution of UEs and the traffic type. For example, when the satellite serves a footprint 410, it may be considered that the satellite is “on” for footprint 410. When the beam of the satellite is directed to another footprint 420 and the footprints 410, 420 may not be served simultaneously, then it may be considered that the satellite is “off” for the footprint 410.
[0109] In some example embodiments, there may be a time domain resource division for on-off states, or for different beams, or for RSs associated with respective beams. A corresponding configuration may be configured from a BS (may be also referred to as a gNB hereinafter, and the terms BS and gNB may be used interchangeably) to a UE. The corresponding configuration may be exchanged between different gNBs as well.
[0110] In some example embodiments, there may be two alternatives for indicating spatial domain information, beam width, and / or transmission power. The first alternative may be indicating the time domain pattern first, and then indicating the beam width and / or the transmission power value for the on-duration based on the indicated time domain pattern. In the second alternative, an index can be used to indicate the beam width, the transmission power, and the time domain pattern jointly. The example embodiments of the first alternative will be discussed as below. In the first alternative, there are two cases to be discussed. Case 1 is for a time domain pattern which is periodic and case 2 is for a time domain pattern which is aperiodic.
[0111] For case 1, in some example embodiments, the beam width and / or transmission power for a time instance may be determined by a configured time domain resource for the on-state. A periodic configuration may be defined as combination of a periodicity, an offset, and a duration based on a SCS. The SCS can be configured or implicitly determined based on a frequency band. For example, the SCS may be configured or implicitly determined based on the frequency band. For instance, the periodic time domain pattern may be configured as “periodicity=40ms, offset=0, and duration=10ms. ” As such, within the configured duration (e.g., 0-9ms, 40-49ms, 80-89ms, etc. ) , the satellite may be considered to be on, and out of the configured duration (e.g., 10-39ms, 50-79ms, etc. ) , the satellite may be considered to be off.
[0112] For case 1, in some example embodiments, there may be multiple periodic configurations for a footprint. Each of the periodic configurations is associated with a configuration index. Different configurations may apply to different time instances. The parameters related to each configuration may be configured by high layers, and a configuration index may be indicated by a dynamic signaling such as a MAC CE signaling or DCI. An indication indicative of the beam pattern configuration may be specific to a cell or a UE. Thus, for different UEs, there may be different periodic configurations.
[0113] For case 1, in some example embodiments, the beam width and / or transmission power for a time instance may be determined by a total number of footprints (e.g., represented by N) and a number of footprints served simultaneously (e.g., represented by M) . Both N and M may be configured to a UE (such as the UE 104) .
[0114] In some implementations, the footprints which can be served simultaneously may be constructed to be a group. The total group numbers may be K=ceil (N / M) , in which the function “ceil () ” returns the smallest integer value which is greater than or equal to N / M. For example, footprint#0 to # (M-1) may be in group#0, and footprint #M to # (2M-1) can be in group#1. As an example, footprint indices in a group may also be configured.
[0115] In some example embodiments, it is assumed that the serving time for each footprint group is D, and D is configured or predefined. In this case, the periodicity may be equal to D*K. In addition, the offset for each group may be based on a group index. For example, the duration for each footprint may be D. The time instance may be determined by the footprint group index. For example, an on-duration for the first group may be 0 to D-1, and an on-duration for the second group may be D to 2D-1.
[0116] In some example embodiments, it is assumed that the serving time for a footprint group #i is Di, and Di is configured. Then, the periodicity may be sum (Di) where i=0 to K-1, and sum () represents adding D1, D2, …, and Di. The offset for each group may be based on the group index and a duration for each group. For example, the duration for footprint #i is Di, and the offset for footprint #i is sum (Dj) , where j=0 to i-1. In addition, the time instance may be determined by the footprint group index.
[0117] For better understanding of the example embodiments discussed above, now the following description will refer to FIG. 5, which illustrates an example periodic configuration 500 in accordance with aspects of the present disclosure. As shown in FIG. 5 which is merely an example, there are four footprint groups, and the beam active time (on state) for different groups is different. For example, the beam active time for zone #1 starts at the time point 510 and has the duration 502. The beam active time for zone #2 starts at the time point 512 and has the duration 504. The beam active time for zone #3 starts at the time point 514 and has the duration 506. The beam active time for zone #4 starts at the time point 516 and has the duration 508.
[0118] The case 2 of the first alternative for indicating spatial domain information, beam width, and / or transmission power will now be discussed. In some example embodiments, a starting time and / or a duration may be configured to a UE with regard to a footprint. The duration may be determined by the starting position and may be associated with an “on” state of the satellite for this footprint. The starting time may be determined based on reception of an indication of a beam pattern configuration and an offset, which offset is between the reception of the indication and the time point when the beam pattern configuration is applied for a time instance. The starting time may be the end of a periodic on-duration during which the aperiodic signaling is received. As an example, the offset may be configured or predefined.
[0119] For case 2, in some example embodiments, there may be a contradiction between multiple periodic configurations and aperiodic configuration. Which one to apply for the time instance may be determined based on approach 1 or approach 2 as further discussed as follows. The approach 1 may use an explicit indication by a priority flag. For example, a lower value has a higher priority. The approach 2 may use a predefined rule based on the periodic beam indication or the aperiodic beam indication, or based on a configuration index. For example, the aperiodic configuration may have a higher priority than the periodic configuration. The Periodic configuration with lower configuration index may have a higher priority. As another example, a later configuration may have a higher priority than a previous configuration.
[0120] For better understanding of the example embodiments discussed above, now referring to FIG. 6, which illustrates an example aperiodic configuration 600 in accordance with aspects of the present disclosure. As shown in FIG. 6, the beam information 602 is received at the time point 604, a duration for receiving the beam information 602 is represented by 610, and the offset is represented as 612. As such, the duration of the beam 606 starts at time point 608 and the duration of the beam 606 is represented as 614.
[0121] For the aforementioned case 2, in some example embodiments, an indication for the beam width and / or the transmission power for the “on” state may have two options. In option 1, the indication for the beam width and / or the transmission power may be explicitly indicated by a beam ID, a beam width, a power value, or any combination of them. In some examples, the beam ID may be associated with a beam width only, or may be associated with both beam width and transmission power value. Thus, the combination may be (1) a beam ID only, (2) a beam ID and a power value, and (3) a beam width and a power value. For example, 1 bit can be used to indicate whether the beam is a wide beam or a narrow beam. As another example, 2 bits may be used to indicate one power value among four power values.
[0122] In option 2, the indication for the beam width and / or the transmission power may be implicitly indicated by an associated RS. For instance, the RS may be SSB or CSI-RS. Different RS indices or RS types may be associated with different beam widths. The power value may be explicitly configured. The power value may be associated with a RS index or a RS type. For example, different RS indices may be associated with a same beam width and different power values. As another example, different RS indices may be associated with a different beam width as well as different power values. As a further example, different RS types may be associated with different beam widths as well as different power values.
[0123] In some example embodiments, the time domain patterns may be indicated dynamically. For example, parameters related to each time domain pattern (such as the parameters related to periodic configuration or aperiodic configuration) may be configured semi-statically by a high layer signaling. Also, the beam width and transmission power value for on-duration of the time domain configuration may also be indicated dynamically.
[0124] In some example embodiments, the dynamic signaling may be a group common DCI or a scheduling DCI. In these embodiments, application time of the signaling may be at the same slot of the DCI, immediately after reception of the DCI, or after the reception of the DCI by a configured and / or predefined offset. In some examples, multiple combinations of beam widths and / or transmission power values may also be configured by a higher signaling. In such cases, association between the time domain pattern and the combination may be indicated. Further, in some implementations, the time domain configuration can be activated or deactivated. After being activation, the time domain configuration may be applicable for a duration. After being deactivation, the time domain configuration may be not valid after an offset.
[0125] The example embodiments of the second alternative will be discussed hereinafter. In the second alternative, an index may be used to indicate the beam width, the transmission power, and the time domain configuration jointly. In some embodiments, the index may be an explicit index, a beam ID, a resource index, or any other identifier with the similar functions. Also, the associated time domain pattern may be periodic or aperiodic, which may be determined similarly as in the first alternative. For the purpose of simplification, it will not be discussed again.
[0126] For the second alternative, in some example embodiments, the beam ID and / or the RS index may be indicated by an RRC message, a MAC CE, a group common DCI, or any other suitable signaling. For example, the application of the MAC CE may be after ACK / NACK for physical data shared channel (PDSCH) by 3ms+Kmac. As another example, the application of the group common DCI may be at a slot boundary of the corresponding group common DCI. In a third example, a delay between the reception of the signaling and the application of the signaling may also be configured.
[0127] For the second alternative, in some example embodiments, the associated time domain pattern for a beam ID and / or the RS index may also be deactivated. For example, the deactivation may be based on a signaling, e.g., a MAC CE or a DCI, or can be based on a timer. In some example embodiments, before deactivation of a previous time domain pattern, a new time domain pattern may be received, and there are overlapping time domain resources. In these example embodiments, the new time domain pattern may be applied at least for the overlapped time domain resources.
[0128] For the second alternative, in some example embodiments, a part of or all of the beam width, the transmission power, the time domain pattern may be reflected by a beam ID and / or a RS index. In some example embodiments, multiple configuration indices may be activated / deactivated simultaneously. For example, the multiple configurations may be applied to different time instances. In other examples, the multiple configurations may also be applied at a same time instance. In this case, a configuration with higher priority may be applied.
[0129] In some example embodiments, a UE reporting may facilitate the selection of beam pattern at the satellite side. The UE reporting may be one or more of alternative 1, alternative 2 or alternative 3 as further described.
[0130] For alternative 1 of the UE reporting, in some example embodiments, reported characteristics related to traffic may include: (1) a UE traffic type, such as: a file transfer protocol (ftp) , a full buffer; (2) a latency requirement; (3) data volume, such as BSR or time duration for transmission; (4) a UE distribution (e.g., at which footprint the UE is located) , a UE location, or a large area; (5) UE capability regarding a max transmission power; (6) a UE type (e.g., a polarization type or an antenna type) ; (7) coverage enhancement capability; any other similar characteristic; or any combination of the above-mentioned characteristics.
[0131] For alternative 2 of the UE reporting, in some example embodiments, recommended satellite transmission parameter may be reported and can include: (1) recommended satellite transmission power; (2) a recommended beam width; (3) preferred serving time for a specific UE; (4) preferred uplink transmission power for a specific UE; any other recommended parameter; or any combination of the above-mentioned recommended parameters.
[0132] For alternative 3 of the UE reporting, in some example embodiments, a CSI report for different beam widths and transmission powers may be reported. For example, the reported metrics may be a CQI and / or a RI for a corresponding beam width and transmission power. In some situations, the reported metrics may also include an RSRP, an RSRQ, an SINR, etc. In some example embodiments, different reporting may correspond to different beam widths and / or transmission powers, such that a gNB may determine a suitable beam width and / or transmission power for a UE. There may be multiple RS at least for different beam widths.
[0133] For alternative 3, in some example embodiments, differential reporting may also be adopted for overhead reduction. For example, a resource pair or a resource set may be configured, and reported metrics may be compared within the resource pair or the resource set, e.g., with respect to the first one in the resource pair and / or the resource set, or with respect to the best one in the resource pair and / or the resource set. In some example embodiments, priority of such reporting may be considered if it is carried by a physical uplink control channel (PUCCH) and / or a physical uplink shared channel (PUSCH) . For example, the priority can be based on the reported content, a cell ID, or periodic reporting and / or aperiodic reporting, etc.
[0134] By implementing the embodiments of the present disclosure discussed with reference to FIGS. 2-6, a solution of beam indication for wireless communication can be provided, so that a beam pattern, beam width and / or transmission power generated by a base station (such as a satellite) can be provided to UEs, thereby improving performance of the wireless communication.
[0135] FIG. 7 illustrates an example of device 700 for beam indication for wireless communication in accordance with aspects of the present disclosure. The device 700 may be an example of a UE 104 as described herein. The device 700 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 700 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 702, a memory 704, a transceiver 706, and, optionally, an I / O controller 708. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0136] The processor 702, the memory 704, the transceiver 706, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 702, the memory 704, the transceiver 706, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0137] In some implementations, the processor 702, the memory 704, the transceiver 706, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 702 and the memory 704 coupled with the processor 702 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 702, instructions stored in the memory 704) .
[0138] For example, the processor 702 may support wireless communication at the device 700 in accordance with examples as disclosed herein. The processor 702 may be configured to operable to support means for beam indication for wireless communication. For example, the processor 702 may be configured to operable to support means for receiving a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; means for identifying one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one reception or transmission comprises data or RS for the duration; and means for communicating with a base station and based at least in part on one or more of the spatial domain information or the transmission power information. The processor 702 may be configured to operable to support means for performing other steps as discussed with reference to FIGS. 2-6.
[0139] The processor 702 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 702 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 702. The processor 702 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 704) to cause the device 700 to perform various functions of the present disclosure.
[0140] The memory 704 may include random access memory (RAM) and read-only memory (ROM) . The memory 704 may store computer-readable, computer-executable code including instructions that, when executed by the processor 702 cause the device 700 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 702 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 704 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0141] The I / O controller 708 may manage input and output signals for the device 700. The I / O controller 708 may also manage peripherals not integrated into the processor 702. In some implementations, the I / O controller 708 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 708 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 708 may be implemented as part of a processor, such as the processor 702. In some implementations, a user may interact with the device 700 via the I / O controller 708 or via hardware components controlled by the I / O controller 708.
[0142] In some implementations, the device 700 may include a single antenna 710. However, in some other implementations, the device 700 may have more than one antenna 710 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 706 may communicate bi-directionally, via the one or more antennas 710, wired, or wireless links as described herein. For example, the transceiver 706 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 706 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 710 for transmission, and to demodulate packets received from the one or more antennas 710. The transceiver 706 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0143] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 1010 for transmitting the amplified signal into the air or wireless medium.
[0144] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 710 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0145] FIG. 8 illustrates an example of a device 800 that supports the solution for beam indication for wireless communication in accordance with aspects of the present disclosure. The device 800 may be an example of a network entity 102 as described herein. The device 800 may support wireless communication with one or more network entities 102, UEs 104, or any combination thereof. The device 800 may include components for bi-directional communications including components for transmitting and receiving communications, such as a processor 802, a memory 804, a transceiver 806, and, optionally, an I / O controller 808. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0146] The processor 802, the memory 804, the transceiver 806, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. For example, the processor 802, the memory 804, the transceiver 806, or various combinations or components thereof may support a method for performing one or more of the operations described herein.
[0147] In some implementations, the processor 802, the memory 804, the transceiver 806, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a digital signal processor (DSP) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some implementations, the processor 802 and the memory 804 coupled with the processor 802 may be configured to perform one or more of the functions described herein (e.g., executing, by the processor 802, instructions stored in the memory 804) .
[0148] For example, the processor 802 may support wireless communication at the device 800 in accordance with examples as disclosed herein. The processor 802 may be configured to operable to support means for beam indication for wireless communication. For example, the processor 802 may be configured to operable to support means for determining at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index; transmitting a signaling indicating the at least one of spatial domain information or transmission power information; and means for communicating with a UE and based at least in part on one or more of the spatial domain information or the transmission power information. The processor 802 may be configured to operable to support means for performing other steps as discussed with reference to FIGS. 2-6.
[0149] The processor 802 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) . In some implementations, the processor 802 may be configured to operate a memory array using a memory controller. In some other implementations, a memory controller may be integrated into the processor 802. The processor 802 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 804) to cause the device 800 to perform various functions of the present disclosure.
[0150] The memory 804 may include random access memory (RAM) and read-only memory (ROM) . The memory 804 may store computer-readable, computer-executable code including instructions that, when executed by the processor 802 cause the device 800 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some implementations, the code may not be directly executable by the processor 802 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some implementations, the memory 804 may include, among other things, a basic I / O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
[0151] The I / O controller 808 may manage input and output signals for the device 800. The I / O controller 808 may also manage peripherals not integrated into the device 800. In some implementations, the I / O controller 808 may represent a physical connection or port to an external peripheral. In some implementations, the I / O controller 808 may utilize an operating system such as or another known operating system. In some implementations, the I / O controller 808 may be implemented as part of a processor, such as the processor 806. In some implementations, a user may interact with the device 800 via the I / O controller 808 or via hardware components controlled by the I / O controller 808.
[0152] In some implementations, the device 800 may include a single antenna 810. However, in some other implementations, the device 800 may have more than one antenna 810 (i.e., multiple antennas) , including multiple antenna panels or antenna arrays, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 806 may communicate bi-directionally, via the one or more antennas 810, wired, or wireless links as described herein. For example, the transceiver 806 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 806 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 810 for transmission, and to demodulate packets received from the one or more antennas 810. The transceiver 806 may include one or more transmit chains, one or more receive chains, or a combination thereof.
[0153] A transmit chain may be configured to generate and transmit signals (e.g., control information, data, packets) . The transmit chain may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM) , frequency modulation (FM) , or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM) . The transmit chain may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmit chain may also include one or more antennas 810 for transmitting the amplified signal into the air or wireless medium.
[0154] A receive chain may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receive chain may include one or more antennas 810 for receive the signal over the air or wireless medium. The receive chain may include at least one amplifier (e.g., a low-noise amplifier (LNA) ) configured to amplify the received signal. The receive chain may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receive chain may include at least one decoder for decoding the processing the demodulated signal to receive the transmitted data.
[0155] FIG. 9 illustrates an example of a processor 900 that supports the solution for beam indication for wireless communication in accordance with aspects of the present disclosure. The processor 900 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 900 may include a controller 902 configured to perform various operations in accordance with examples as described herein. The processor 900 may optionally include at least one memory 904, such as L1 / L2 / L3 cache. Additionally, or alternatively, the processor 900 may optionally include one or more arithmetic-logic units (ALUs) 906. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0156] The processor 900 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 900) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0157] The controller 902 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 900 to cause the processor 900 to support various operations of a UE in accordance with examples as described herein. For example, the controller 902 may operate as a control unit of the processor 900, generating control signals that manage the operation of various components of the processor 900. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0158] The controller 902 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 904 and determine subsequent instruction (s) to be executed to cause the processor 900 to support various operations in accordance with examples as described herein. The controller 902 may be configured to track memory address of instructions associated with the memory 904. The controller 902 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 902 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 900 to cause the processor 900 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 902 may be configured to manage flow of data within the processor 900. The controller 902 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 900.
[0159] The memory 904 may include one or more caches (e.g., memory local to or included in the processor 900 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 904 may reside within or on a processor chipset (e.g., local to the processor 900) . In some other implementations, the memory 904 may reside external to the processor chipset (e.g., remote to the processor 900) .
[0160] The memory 904 may store computer-readable, computer-executable code including instructions that, when executed by the processor 900, cause the processor 900 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 902 and / or the processor 900 may be configured to execute computer-readable instructions stored in the memory 904 to cause the processor 900 to perform various functions. For example, the processor 900 and / or the controller 902 may be coupled with or to the memory 904, and the processor 900, the controller 902, and the memory 904 may be configured to perform various functions described herein. In some examples, the processor 900 may include multiple processors and the memory 904 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0161] The one or more ALUs 906 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 906 may reside within or on a processor chipset (e.g., the processor 900) . In some other implementations, the one or more ALUs 906 may reside external to the processor chipset (e.g., the processor 900) . One or more ALUs 906 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 906 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 906 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 906 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 906 to handle conditional operations, comparisons, and bitwise operations.
[0162] The processor 900 may support wireless communication in accordance with examples as disclosed herein. The processor 900 may be configured to or operable to support means for beam indication for wireless communication.
[0163] FIG. 10 illustrates an example of a processor 1000 that supports the solution for beam indication for wireless communication in accordance with aspects of the present disclosure. The processor 1000 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 1000 may include a controller 1002 configured to perform various operations in accordance with examples as described herein. The processor 1000 may optionally include at least one memory 1004, such as L1 / L2 / L3 cache. Additionally, or alternatively, the processor 1000 may optionally include one or more arithmetic-logic units (ALUs) 1006. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses) .
[0164] The processor 1000 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 1000) or other memory (e.g., random access memory (RAM) , read-only memory (ROM) , dynamic RAM (DRAM) , synchronous dynamic RAM (SDRAM) , static RAM (SRAM) , ferroelectric RAM (FeRAM) , magnetic RAM (MRAM) , resistive RAM (RRAM) , flash memory, phase change memory (PCM) , and others) .
[0165] The controller 1002 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 1000 to cause the processor 1000 to support various operations of a network entity in accordance with examples as described herein. For example, the controller 1002 may operate as a control unit of the processor 1000, generating control signals that manage the operation of various components of the processor 1000. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.
[0166] The controller 1002 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 1004 and determine subsequent instruction (s) to be executed to cause the processor 1000 to support various operations in accordance with examples as described herein. The controller 1002 may be configured to track memory address of instructions associated with the memory 1004. The controller 1002 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 1002 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 1000 to cause the processor 1000 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 1002 may be configured to manage flow of data within the processor 1000. The controller 1002 may be configured to control transfer of data between registers, arithmetic logic units (ALUs) , and other functional units of the processor 1000.
[0167] The memory 1004 may include one or more caches (e.g., memory local to or included in the processor 1000 or other memory, such RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementation, the memory 1004 may reside within or on a processor chipset (e.g., local to the processor 1000) . In some other implementations, the memory 1004 may reside external to the processor chipset (e.g., remote to the processor 1000) .
[0168] The memory 1004 may store computer-readable, computer-executable code including instructions that, when executed by the processor 1000, cause the processor 1000 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 1002 and / or the processor 1000 may be configured to execute computer-readable instructions stored in the memory 1004 to cause the processor 1000 to perform various functions. For example, the processor 1000 and / or the controller 1002 may be coupled with or to the memory 1004, and the processor 1000, the controller 1002, and the memory 1004 may be configured to perform various functions described herein. In some examples, the processor 1000 may include multiple processors and the memory 1004 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.
[0169] The one or more ALUs 1006 may be configured to support various operations in accordance with examples as described herein. In some implementation, the one or more ALUs 1006 may reside within or on a processor chipset (e.g., the processor 1000) . In some other implementations, the one or more ALUs 1006 may reside external to the processor chipset (e.g., the processor 1000) . One or more ALUs 1006 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 1006 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 1006 be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 1006 may support logical operations such as AND, OR, exclusive-OR (XOR) , not-OR (NOR) , and not-AND (NAND) , enabling the one or more ALUs 1006 to handle conditional operations, comparisons, and bitwise operations.
[0170] The processor 1000 may support wireless communication in accordance with examples as disclosed herein. The processor 1000 may be configured to or operable to support means for beam indication for wireless communication.
[0171] FIG. 11 illustrates a flowchart of a method 1100 that supports a solution for beam indication for wireless communication in accordance with aspects of the present disclosure. The operations of the method 1100 may be implemented by a device or its components as described herein. For example, the operations of the method 1100 may be performed by a UE as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0172] At 1105, the method may include receiving a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index. The operations of 1105 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1105 may be performed by a device as described with reference to FIG. 1.
[0173] At 1110, the method may include identifying one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one transmission comprises data or RS for the duration. The operations of 1110 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1110 may be performed by a device as described with reference to FIG. 1.
[0174] At 1115, the method may include communicating with a base station and based at least in part on one or more of the spatial domain information or the transmission power information. The operations of 1115 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1115 may be performed by a device as described with reference to FIG. 1.
[0175] FIG. 12 illustrates a flowchart of a method 1200 that supports a solution for beam indication for wireless communication in accordance with aspects of the present disclosure. The operations of the method 1200 may be implemented by a device or its components as described herein. For example, the operations of the method 1200 may be performed by a BS as described herein. In some implementations, the device may execute a set of instructions to control the function elements of the device to perform the described functions. Additionally, or alternatively, the device may perform aspects of the described functions using special-purpose hardware.
[0176] At 1205, the method may include determining at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam ID, a beam width, or a RS index. The operations of 1205 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1205 may be performed by a device as described with reference to FIG. 1.
[0177] At 1210, the method may include transmitting a signaling indicating the at least one of spatial domain information or transmission power information. The operations of 1210 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1210 may be performed by a device as described with reference to FIG. 1.
[0178] At 1215, the method may include communicating with a UE and based at least in part on one or more of the spatial domain information or the transmission power information. The operations of 1215 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1215 may be performed by a device as described with reference to FIG. 1.
[0179] It should be noted that the methods described herein describes possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0180] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, 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 such configuration.
[0181] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
[0182] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
[0183] As used herein, including in the claims, an article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” or “one or both of” ) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. Further, as used herein, including in the claims, a “set” may include one or more elements.
[0184] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1.A user equipment (UE) comprising:at least one memory; andat least one processor coupled with the at least one memory and configured to cause the UE to:receive a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam identifier (ID) , a beam width, or a reference signal (RS) index;identify one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one transmission comprises data or RS for the duration; andcommunicate with a base station based at least in part on one or more of the spatial domain information or the transmission power information.2.The UE of claim 1, wherein the duration is indicated by a periodic configuration, and wherein the periodic configuration comprises one or more of:a periodicity of spatial domain information or transmission power information;an offset with respect to a start of the spatial domain information or transmission power information; ora duration of the spatial domain information or transmission power information.3.The UE of claim 1, wherein the duration is indicated by a periodic configuration, and wherein the periodic configuration comprises one or more of:a first number indicating a total number of a plurality of sub-areas in a geographical area to be served by a satellite, wherein the satellite serves the geographical area;a second number indicating a plurality of sub-areas which are to be served simultaneously by the satellite in a sub-area group; orat least one service time for at least one sub-area group.4.The UE of claim 3, wherein the duration is determined based on a sub-area group index.5.The UE of claim 1, wherein the duration is indicated by an aperiodic configuration, and wherein the aperiodic configuration comprises one or more of:a starting position of spatial domain information or transmission power information; ora duration of the spatial domain information or transmission power information.6.The UE of any of claims 2-5, wherein:a periodic configuration is associated with a configuration index; oran aperiodic configuration is associated with a configuration index.7.The UE of claim 6, wherein the configuration index further indicates at least one of the beam ID, the beam width, the RS index, or a transmission power value.8.The UE of claim 6, wherein the configuration index is determined by an associated RS index or an associated beam ID.9.The UE of any of claims 6-8, wherein a plurality of configurations are transmitted to the UE, and a configuration of the plurality of configurations is associated with one or more of a respective configuration index, a respective RS index, or a respective beam ID.10.The UE of any of claims 6-8, wherein an association between the configuration index, the spatial domain information and the transmission power information is configured or predefined.11.The UE of any of claims 6-10, wherein the processor is further configured to cause the UE to:receive a signaling indicating application of the configuration via at least one of a radio resource control (RRC) signaling, a medium access control (MAC) control element (CE) , group common downlink control information (DCI) , or a scheduling DCI.12.The UE of claim 9, wherein:the configuration is deactivated by reception of another configuration or after an expiration of a configured timer; orone or more of the plurality of configurations are activated or deactivated simultaneously.13.The UE of claim 9, wherein a configuration of the plurality of configurations is applied to different time domain resources or overlapped time domain resources.14.The UE of claim 9, wherein:a configuration of the plurality of configurations is associated with a priority indicator; ora priority for a configuration of the plurality of configurations is determined by the configuration index.15.The UE of claim 1, wherein the processor is further configured to cause the UE to:transmit a report comprising at least one of a traffic type, a latency requirement, a data volume, a distribution of UEs, positioning related information, a UE type, UE max transmission power, a UE antenna type, a UE polarization type, or a UE coverage level.16.The UE of claim 1, wherein the processor is further configured to cause the UE to:transmit a report comprising at least one of a recommended satellite transmission power, a recommended beam width, preferred serving time, or preferred uplink transmission power.17.The UE of claim 1, wherein the processor is further configured to cause the UE to:transmit a plurality of channel state information (CSI) corresponding to different beam widths and transmission powers.18.The UE of claim 17, wherein a priority is determined for reporting the CSI, and the priority is based on at least one of a reporting metric, a cell ID, the report being periodic or aperiodic.19.A base station (BS) comprising:at least one memory; andat least one processor coupled with the at least one memory and configured to cause the BS to:determine at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam identifier (ID) , a beam width, or a reference signal (RS) index;transmit a signaling indicating the at least one of spatial domain information or transmission power information; andcommunicate with a user equipment (UE) based at least in part on one or more of the spatial domain information or the transmission power information.20.A method performed by a user equipment (UE) comprising:receiving a signaling indicating at least one of spatial domain information or transmission power information for a duration, wherein the spatial domain information comprises at least one of a beam identifier (ID) , a beam width, or a reference signal (RS) index;identifying one or more of the spatial domain information or a transmission power value for receiving or transmitting at least one transmission, wherein the at least one transmission comprises data or RS for the duration; andcommunicating with a base station based at least in part on one or more of the spatial domain information or the transmission power information.