Beamforming for wireless transmission of geographic information
By using beamformed signals with region-specific transmission parameters based on channel state information, the method optimizes the transmission of high-definition maps in wireless networks, addressing the challenge of synchronizing map download with beamforming coverage.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-17
- Publication Date
- 2026-03-26
AI Technical Summary
Existing wireless networks face challenges in efficiently transmitting high-definition maps to autonomous vehicles, as downloading such maps is nontrivial and requires synchronization with the beamforming signal's coverage area.
The method involves receiving a beamformed signal that conveys a map correlated with its coverage area, using channel state information to select transmission parameters, and identifying the geographic region through a packet header, allowing data reception within the mapped region.
This approach optimizes map signaling by aligning transmission parameters with geographic region-specific channel conditions, enhancing reception accuracy and efficiency in wireless networks.
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Figure CN2024119245_26032026_PF_FP_ABST
Abstract
Description
BEAMFORMING FOR WIRELESS TRANSMISSION OF GEOGRAPHIC INFORMATION
[0001] FIELD OF TECHNOLOGY
[0002] The following relates to wireless communications, including beamforming for wireless transmission of geographic information.BACKGROUND
[0003] Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal FDMA (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations, each supporting wireless communication for communication devices, which may be known as user equipment (UE) .SUMMARY
[0004] The systems, methods, and devices of this disclosure each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.
[0005] A method for wireless communications by a user equipment (UE) is described. The method may include receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with channel state information associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region and receiving one or more data signals while operating in the geographic region of the map.
[0006] A UE for wireless communications is described. The UE may include one or more memories storing processor executable code, a transceiver, and one or more processors coupled with the one or more memories and the transceiver. The one or more processors may individually or collectively be operable to execute the code to cause the UE to receive, via the transceiver, a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with channel state information associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region, and receive, via the transceiver, one or more data signals while operating in the geographic region of the map.
[0007] Another UE for wireless communications is described. The UE may include means for receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with channel state information associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region, and means for receiving one or more data signals while operating in the geographic region of the map.
[0008] A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to receive a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with channel state information associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region, and receive one or more data signals while operating in the geographic region of the map.
[0009] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, where the beamformed signal indicating the map for the geographic region may be received in accordance with t one or more beamforming weights that may be included in the beamforming weighting table.
[0010] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving at least the portion of the beamforming weighting table includes receiving a complete beamforming weighting table corresponding to a set of coverage areas of a transmitting device for the beamformed signal or receiving a portion of the beamforming weighting table, the portion corresponding to the coverage area within which the UE receives the beamformed signal indicating the map.
[0011] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a request for a beamforming weight associated with the coverage area within which the UE receives the beamformed signal indicating the map, where at least the portion of the beamforming weighting table may be received in accordance with the request.
[0012] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the beamforming weighting table includes one or more region identifiers corresponding to the one or more geographic regions.
[0013] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, where the indication of the map may be received in accordance with the request.
[0014] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the map may be received in accordance with a periodic schedule.
[0015] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving an indication of a shared resource allocated for transmission of a negative-acknowledgement (NACK) indication associated with the map for the geographic region, where the shared resource may be for multiple UEs located within the geographic region.
[0016] Some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying a region identifier associated with the geographic region of the map, where the set of shared resources may be identified in accordance with the region identifier.
[0017] In some examples of the method, user equipment (UEs) , and non-transitory computer-readable medium described herein, the NACK indication includes one or more bits identifying a redundancy version associated with a packet that includes the map.
[0018] A method for wireless communications by a network entity is described. The method may include obtaining information identifying a map for a geographic region, where the information further identifies the geographic region, selecting one or more transmission parameters of a beamformed signal in accordance with channel state information associated with the geographic region, and outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0019] A network entity for wireless communications is described. The network entity may include one or more memories storing processor executable code, and one or more processors coupled with the one or more memories. The one or more processors may individually or collectively be operable to execute the code to cause the network entity to obtain information identifying a map for a geographic region, where the information further identifies the geographic region, select one or more transmission parameters of a beamformed signal in accordance with channel state information associated with the geographic region, and output a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0020] Another network entity for wireless communications is described. The network entity may include means for obtaining information identifying a map for a geographic region, where the information further identifies the geographic region, means for selecting one or more transmission parameters of a beamformed signal in accordance with channel state information associated with the geographic region, and means for outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0021] A non-transitory computer-readable medium storing code for wireless communications is described. The code may include instructions executable by one or more processors to obtain information identifying a map for a geographic region, where the information further identifies the geographic region, select one or more transmission parameters of a beamformed signal in accordance with channel state information associated with the geographic region, and output a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0022] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a packet that includes the map from a network server, where the information further identifying the geographic region may be obtained from a header portion of the packet that includes the map.
[0023] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, by the network entity, a control message that indicates the information further identifying the geographic region, where the control message may be separate from a packet that includes the map.
[0024] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for outputting a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, where the beamformed signal may be output in accordance with one or more beamforming weights that may be included in at least the portion of the beamforming weighting table.
[0025] Some examples of the method, network entities, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for obtaining, from a UE, a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, where the indication of the map may be output in accordance with the request.
[0026] In some examples of the method, network entities, and non-transitory computer-readable medium described herein, the indication of the map may be output to each geographic region with a set of geographic regions in accordance with a periodic schedule and the one or more transmission parameters for each geographic region in the set of geographic regions may be in accordance with corresponding channel state information for the geographic region.
[0027] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and the description below. Other features, aspects, and advantages will become apparent from the description, the drawings, and the claims. Note that the relative dimensions of the following figures may not be drawn to scale.BRIEF DESCRIPTION OF THE DRAWINGS
[0028] FIG. 1 shows an example of a wireless communications system that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0029] FIG. 2 shows an example of a wireless communications system that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0030] FIG. 3 shows an example of a wireless communications system that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0031] FIG. 4 shows an example of a wireless communications system that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0032] FIGs. 5 and 6 show block diagrams of devices that support beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0033] FIG. 7 shows a block diagram of a communications manager that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0034] FIG. 8 shows a diagram of a system including a device that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0035] FIGs. 9 and 10 show block diagrams of devices that support beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0036] FIG. 11 shows a block diagram of a communications manager that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0037] FIG. 12 shows a diagram of a system including a device that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.
[0038] FIGs. 13 through 17 show flowcharts illustrating methods that support beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure.DETAILED DESCRIPTION
[0039] Wireless networks may support accurate geometric and geographic information, such as high-definition maps, which may be important to highly automated autonomous vehicles. The increasing volume of such autonomous vehicles leverages such information for enhanced safety and performance. However, downloading the high-definition maps is a nontrivial matter within wireless systems. To support this, some wireless networks may support the physical region corresponding to the map content of the high-definition map packet being the same (or highly correlated to) the region of the beamforming signal sending the packet that carries the map.
[0040] Accordingly, aspects of the techniques described herein improve such map signaling within a wireless network. For example, a user equipment (UE) may receive a beamformed signal that carries or otherwise conveys information indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal. In some aspects, one or more transmission parameters of the beamformed signal are selected or otherwise based on or in accordance with one or more channel performance metrics (e.g., channel state information (CSI) ) associated with the geographic region. For example, a network entity may use region information to look up previously stored CSI reports or other channel performance metrics for the geographic region (e.g., as previously measured and reported by one or more UEs while operating within the geographic region) , and the network entity may use such information to select one or more transmission parameters (e.g., one or more precoding vectors or matrices) for the beamformed signal.
[0041] In some aspects, a header portion of a packet carrying the map may carry or otherwise convey information that identifies the geographic region. For example, the network entity conveying the map to UE (s) may use the region identifier of the map to identify the geographic region (and the corresponding coverage area of the beamformed signal that will carry the map) and use previously obtained CSI (e.g., various channel quality or performance metrics) for that region to select transmission parameters for the beamformed signal that optimizes reception. The UE may receive data signal (s) while operating in the geographic region of the map. In some aspects, the data signal (s) may be beamformed in a manner that is correlated with the geographic region of the map.
[0042] Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to beamforming for wireless transmission of geographic information.
[0043] FIG. 1 shows an example of a wireless communications system 100 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The wireless communications system 100 may include one or more devices, such as one or more network devices (e.g., network entities 105) , one or more UEs 115, and a core network 130. In some examples, the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating in accordance with other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.
[0044] The network entities 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may include devices in different forms or having different capabilities. In various examples, a network entity 105 may be referred to as a network element, a mobility element, a radio access network (RAN) node, or network equipment, among other nomenclature. In some examples, network entities 105 and UEs 115 may wirelessly communicate via communication link (s) 125 (e.g., a radio frequency (RF) access link) . For example, a network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) over which the UEs 115 and the network entity 105 may establish the communication link (s) 125. The coverage area 110 may be an example of a geographic area over which a network entity 105 and a UE 115 may support the communication of signals according to one or more radio access technologies (RATs) .
[0045] The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communications with various types of devices in the wireless communications system 100 (e.g., other wireless communication devices, including UEs 115 or network entities 105) , as shown in FIG. 1.
[0046] As described herein, a node of the wireless communications system 100, which may be referred to as a network node, or a wireless node, may be a network entity 105 (e.g., any network entity described herein) , a UE 115 (e.g., any UE described herein) , a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, a node may be a UE 115. As another example, a node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In yet other aspects of this example, the first, second, and third nodes may be different relative to these examples. Similarly, reference to a UE 115, network entity 105, apparatus, device, computing system, or the like may include disclosure of the UE 115, network entity 105, apparatus, device, computing system, or the like being a node. For example, disclosure that a UE 115 is configured to receive information from a network entity 105 also discloses that a first node is configured to receive information from a second node.
[0047] In some examples, network entities 105 may communicate with a core network 130, or with one another, or both. For example, network entities 105 may communicate with the core network 130 via backhaul communication link (s) 120 (e.g., in accordance with an S1, N2, N3, or other interface protocol) . In some examples, network entities 105 may communicate with one another via backhaul communication link (s) 120 (e.g., in accordance with an X2, Xn, or other interface protocol) either directly (e.g., directly between network entities 105) or indirectly (e.g., via the core network 130) . In some examples, network entities 105 may communicate with one another via a midhaul communication link 162 (e.g., in accordance with a midhaul interface protocol) or a fronthaul communication link 168 (e.g., in accordance with a fronthaul interface protocol) , or any combination thereof. The backhaul communication link (s) 120, midhaul communication links 162, or fronthaul communication links 168 may be or include one or more wired links (e.g., an electrical link, an optical fiber link) or one or more wireless links (e.g., a radio link, a wireless optical link) , among other examples or various combinations thereof. A UE 115 may communicate with the core network 130 via a communication link 155.
[0048] One or more of the network entities 105 or network equipment described herein may include or may be referred to as a base station 140 (e.g., a base transceiver station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB) , a 5G NB, a next-generation eNB (ng-eNB) , a Home NodeB, a Home eNodeB, or other suitable terminology) . In some examples, a network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, standalone) base station architecture, which may be configured to utilize a protocol stack that is physically or logically integrated within one network entity (e.g., a network entity 105 or a single RAN node, such as a base station 140) .
[0049] In some examples, a network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) , which may be configured to utilize a protocol stack that is physically or logically distributed among multiple network entities (e.g., network entities 105) , such as an integrated access and backhaul (IAB) network, an open RAN (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 105 may include one or more of a central unit (CU) , such as a CU 160, a distributed unit (DU) , such as a DU 165, a radio unit (RU) , such as an RU 170, a RAN Intelligent Controller (RIC) , such as an RIC 175 (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, such as an SMO system 180, or any combination thereof. An RU 170 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 105 in a disaggregated RAN architecture may be co-located, or one or more components of the network entities 105 may be located in distributed locations (e.g., separate physical locations) . In some examples, one or more of the network entities 105 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) ) .
[0050] The split of functionality between a CU 160, a DU 165, and an RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, or any combinations thereof) are performed at a CU 160, a DU 165, or an RU 170. For example, a functional split of a protocol stack may be employed between a CU 160 and a DU 165 such that the CU 160 may support one or more layers of the protocol stack and the DU 165 may support one or more different layers of the protocol stack. In some examples, the CU 160 may host upper protocol layer (e.g., layer 3 (L3) , layer 2 (L2) ) functionality and signaling (e.g., Radio Resource Control (RRC) , service data adaptation protocol (SDAP) , Packet Data Convergence Protocol (PDCP) ) . The CU 160 (e.g., one or more CUs) may be connected to a DU 165 (e.g., one or more DUs) or an RU 170 (e.g., one or more RUs) , or some combination thereof, and the DUs 165, RUs 170, or both may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or 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 160. Additionally, or alternatively, a functional split of the protocol stack may be employed between a DU 165 and an RU 170 such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or multiple different cells (e.g., via one or multiple different RUs, such as an RU 170) . In some cases, a functional split between a CU 160 and a DU 165 or between a DU 165 and an RU 170 may be within a protocol layer (e.g., some functions for a protocol layer may be performed by one of a CU 160, a DU 165, or an RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, the DU 165, or the RU 170) . A CU 160 may be functionally split further into CU control plane (CU-CP) and CU user plane (CU-UP) functions. A CU 160 may be connected to a DU 165 via a midhaul communication link 162 (e.g., F1, F1-c, F1-u) , and a DU 165 may be connected to an RU 170 via a fronthaul communication link 168 (e.g., open fronthaul (FH) interface) . In some examples, a midhaul communication link 162 or a fronthaul communication link 168 may be implemented in accordance with an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities (e.g., one or more of the network entities 105) that are in communication via such communication links.
[0051] In some wireless communications systems (e.g., the wireless communications system 100) , infrastructure and spectral resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, providing an IAB network architecture (e.g., to a core network 130) . In some cases, in an IAB network, one or more of the network entities 105 (e.g., network entities 105 or IAB node (s) 104) may be partially controlled by each other. The IAB node (s) 104 may be referred to as a donor entity or an IAB donor. A DU 165 or an RU 170 may be partially controlled by a CU 160 associated with a network entity 105 or base station 140 (such as a donor network entity or a donor base station) . The one or more donor entities (e.g., IAB donors) may be in communication with one or more additional devices (e.g., IAB node (s) 104) via supported access and backhaul links (e.g., backhaul communication link (s) 120) . IAB node (s) 104 may include an IAB mobile termination (IAB-MT) controlled (e.g., scheduled) by one or more DUs (e.g., DUs 165) of a coupled IAB donor. An IAB-MT may be equipped with an independent set of antennas for relay of communications with UEs 115 or may share the same antennas (e.g., of an RU 170) of IAB node (s) 104 used for access via the DU 165 of the IAB node (s) 104 (e.g., referred to as virtual IAB-MT (vIAB-MT) ) . In some examples, the IAB node (s) 104 may include one or more DUs (e.g., DUs 165) that support communication links with additional entities (e.g., IAB node (s) 104, UEs 115) within the relay chain or configuration of the access network (e.g., downstream) . In such cases, one or more components of the disaggregated RAN architecture (e.g., the IAB node (s) 104 or components of the IAB node (s) 104) may be configured to operate according to the techniques described herein.
[0052] For instance, an access network (AN) or RAN may include communications between access nodes (e.g., an IAB donor) , IAB node (s) 104, and one or more UEs 115. The IAB donor may facilitate connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130) . That is, an IAB donor may refer to a RAN node with a wired or wireless connection to the core network 130. The IAB donor may include one or more of a CU 160, a DU 165, and an RU 170, in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link) . The IAB donor and IAB node (s) 104 may communicate via an F1 interface according to a protocol that defines signaling messages (e.g., an F1 AP protocol) . Additionally, or alternatively, the CU 160 may communicate with the core network 130 via an interface, which may be an example of a portion of a backhaul link, and may communicate with other CUs (e.g., including a CU 160 associated with an alternative IAB donor) via an Xn-C interface, which may be an example of another portion of a backhaul link.
[0053] IAB node (s) 104 may refer to RAN nodes that provide IAB functionality (e.g., access for UEs 115, wireless self-backhauling capabilities) . A DU 165 may act as a distributed scheduling node towards child nodes associated with the IAB node (s) 104, and the IAB-MT may act as a scheduled node towards parent nodes associated with IAB node (s) 104. That is, an IAB donor may be referred to as a parent node in communication with one or more child nodes (e.g., an IAB donor may relay transmissions for UEs through other IAB node (s) 104) . Additionally, or alternatively, IAB node (s) 104 may also be referred to as parent nodes or child nodes to other IAB node (s) 104, depending on the relay chain or configuration of the AN. The IAB-MT entity of IAB node (s) 104 may provide a Uu interface for a child IAB node (e.g., the IAB node (s) 104) to receive signaling from a parent IAB node (e.g., the IAB node (s) 104) , and a DU interface (e.g., a DU 165) may provide a Uu interface for a parent IAB node to signal to a child IAB node or UE 115.
[0054] For example, IAB node (s) 104 may be referred to as parent nodes that support communications for child IAB nodes, or may be referred to as child IAB nodes associated with IAB donors, or both. An IAB donor may include a CU 160 with a wired or wireless connection (e.g., backhaul communication link (s) 120) to the core network 130 and may act as a parent node to IAB node (s) 104. For example, the DU 165 of an IAB donor may relay transmissions to UEs 115 through IAB node (s) 104, or may directly signal transmissions to a UE 115, or both. The CU 160 of the IAB donor may signal communication link establishment via an F1 interface to IAB node (s) 104, and the IAB node (s) 104 may schedule transmissions (e.g., transmissions to the UEs 115 relayed from the IAB donor) through one or more DUs (e.g., DUs 165) . That is, data may be relayed to and from IAB node (s) 104 via signaling via an NR Uu interface to MT of IAB node (s) 104 (e.g., other IAB node (s) ) . Communications with IAB node (s) 104 may be scheduled by a DU 165 of the IAB donor or of IAB node (s) 104.
[0055] In the case of the techniques described herein applied in the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support test as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally, or alternatively, be performed by one or more components of the disaggregated RAN architecture (e.g., components such as an IAB node, a DU 165, a CU 160, an RU 170, an RIC 175, an SMO system 180) .
[0056] A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, or meters, among other examples.
[0057] The UEs 115 described herein may be able to communicate with various types of devices, such as UEs 115 that may sometimes operate as relays, as well as the network entities 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
[0058] The UEs 115 and the network entities 105 may wirelessly communicate with one another via the communication link (s) 125 (e.g., one or more access links) using resources associated with one or more carriers. The term “carrier” may refer to a set of RF spectrum resources having a defined PHY layer structure for supporting the communication link (s) 125. For example, a carrier used for the communication link (s) 125 may include a portion of an RF spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more PHY layer channels for a given RAT (e.g., LTE, LTE-A, LTE-A Pro, NR) . Each PHY layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers. Communication between a network entity 105 and other devices may refer to communication between the devices and any portion (e.g., entity, sub-entity) of a network entity 105. For example, the terms “transmitting, ” “receiving, ” or “communicating, ” when referring to a network entity 105, may refer to any portion of a network entity 105 (e.g., a base station 140, a CU 160, a DU 165, a RU 170) of a RAN communicating with another device (e.g., directly or via one or more other network entities, such as one or more of the network entities 105) .
[0059] In some examples, such as in a carrier aggregation configuration, a carrier may have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute RF channel number (EARFCN) ) and may be identified according to a channel raster for discovery by the UEs 115. A carrier may be operated in a standalone mode, in which case initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode, in which case a connection is anchored using a different carrier (e.g., of the same or a different RAT) .
[0060] The communication link (s) 125 of the wireless communications system 100 may include downlink transmissions (e.g., forward link transmissions) from a network entity 105 to a UE 115, uplink transmissions (e.g., return link transmissions) from a UE 115 to a network entity 105, or both, among other configurations of transmissions. Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .
[0061] A carrier may be associated with a particular bandwidth of the RF spectrum and, in some examples, the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100. For example, the carrier bandwidth may be one of a set of bandwidths for carriers of a particular RAT (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) . Devices of the wireless communications system 100 (e.g., the network entities 105, the UEs 115, or both) may have hardware configurations that support communications using a particular carrier bandwidth or may be configurable to support communications using one of a set of carrier bandwidths. In some examples, the wireless communications system 100 may include network entities 105 or UEs 115 that support concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured for operating using portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.
[0062] Signal waveforms transmitted via a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) . In a system employing MCM techniques, a resource element may refer to resources of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The quantity of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) , such that a relatively higher quantity of resource elements (e.g., in a transmission duration) and a relatively higher order of a modulation scheme may correspond to a relatively higher rate of communication. A wireless communications resource may refer to a combination of an RF spectrum resource, a time resource, and a spatial resource (e.g., a spatial layer, a beam) , and the use of multiple spatial resources may increase the data rate or data integrity for communications with a UE 115.
[0063] One or more numerologies for a carrier may be supported, and a numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.
[0064] The time intervals for the network entities 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts=1 / (Δfmax·Nf) seconds, for which Δfmax may represent a supported subcarrier spacing, and Nf may represent a supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) . Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
[0065] Each frame may include multiple consecutively-numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a quantity of slots. Alternatively, each frame may include a variable quantity of slots, and the quantity of slots may depend on subcarrier spacing. Each slot may include a quantity of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . In some wireless communications systems, such as the wireless communications system 100, a slot may further be divided into multiple mini-slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
[0066] A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) . In some examples, the TTI duration (e.g., a quantity of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .
[0067] Physical channels may be multiplexed for communication using a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed for signaling via a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET) ) for a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to an amount of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to UEs 115 (e.g., one or more UEs) or may include UE-specific search space sets for sending control information to a UE 115 (e.g., a specific UE) .
[0068] A network entity 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with a network entity 105 (e.g., using a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) ) . In some examples, a cell also may refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the network entity 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with coverage areas 110, among other examples.
[0069] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell may be associated with a network entity 105 operating with lower power (e.g., a base station 140 operating with lower power) relative to a macro cell, and a small cell may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) . A network entity 105 may support one or more cells and may also support communications via the one or more cells using one or multiple component carriers.
[0070] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
[0071] In some examples, a network entity 105 (e.g., a base station 140, an RU 170) may be movable and therefore provide communication coverage for a moving coverage area, such as the coverage area 110. In some examples, coverage areas 110 (e.g., different coverage areas) associated with different technologies may overlap, but the coverage areas 110 (e.g., different coverage areas) may be supported by the same network entity (e.g., a network entity 105) . In some other examples, overlapping coverage areas, such as a coverage area 110, associated with different technologies may be supported by different network entities (e.g., the network entities 105) . The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the network entities 105 support communications for coverage areas 110 (e.g., different coverage areas) using the same or different RATs.
[0072] The wireless communications system 100 may support synchronous or asynchronous operation. For synchronous operation, network entities 105 (e.g., base stations 140) may have similar frame timings, and transmissions from different network entities (e.g., different ones of the network entities 105) may be approximately aligned in time. For asynchronous operation, network entities 105 may have different frame timings, and transmissions from different network entities (e.g., different ones of network entities 105) may, in some examples, not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operations.
[0073] Some UEs 115, such as MTC or IoT devices, may be relatively low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) . M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a network entity 105 (e.g., a base station 140) without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that uses the information or presents the information to humans interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
[0074] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a move that supports one-way communication via transmission or reception, but not transmission and reception concurrently) . In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 may include entering a power saving deep sleep mode when not engaging in active communications, operating using a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
[0075] The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) . The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions. Ultra-reliable communications may include private communication or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.
[0076] In some examples, a UE 115 may be configured to support communicating directly with other UEs (e.g., one or more of the UEs 115) via a device-to-device (D2D) communication link, such as a D2D communication link 135 (e.g., in accordance with a peer-to-peer (P2P) , D2D, or sidelink protocol) . In some examples, one or more UEs 115 of a group that are performing D2D communications may be within the coverage area 110 of a network entity 105 (e.g., a base station 140, an RU 170) , which may support aspects of such D2D communications being configured by (e.g., scheduled by) the network entity 105. In some examples, one or more UEs 115 of such a group may be outside the coverage area 110 of a network entity 105 or may be otherwise unable to or not configured to receive transmissions from a network entity 105. In some examples, groups of the UEs 115 communicating via D2D communications may support a one-to-many (1: M) system in which each UE 115 transmits to one or more of the UEs 115 in the group. In some examples, a network entity 105 may facilitate the scheduling of resources for D2D communications. In some other examples, D2D communications may be carried out between the UEs 115 without an involvement of a network entity 105.
[0077] In some systems, a D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) . In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., network entities 105, base stations 140, RUs 170) using vehicle-to-network (V2N) communications, or with both.
[0078] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one 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) ) . The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
[0079] The wireless communications system 100 may operate using one or more frequency bands, which may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) . Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, which may be referred to as clusters, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than one hundred kilometers) compared to communications using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
[0080] The wireless communications system 100 may also operate using a super high frequency (SHF) region, which may be in the range of 3 GHz to 30 GHz, also known as the centimeter band, or using an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band. In some examples, the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the network entities 105 (e.g., base stations 140, RUs 170) , and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, such techniques may facilitate using antenna arrays within a device. The propagation of EHF transmissions, however, may be subject to even greater attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
[0081] The wireless communications system 100 may utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) RAT, or NR technology using an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. While operating using unlicensed RF spectrum bands, devices such as the network entities 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations using unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating using a licensed band (e.g., LAA) . Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
[0082] A network entity 105 (e.g., a base station 140, an RU 170) or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a network entity 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a network entity 105 may be located at diverse geographic locations. A network entity 105 may include an antenna array with a set of rows and columns of antenna ports that the network entity 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support RF beamforming for a signal transmitted via an antenna port.
[0083] The network entities 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) . Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) , for which multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , for which multiple spatial layers are transmitted to multiple devices.
[0084] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating along particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
[0085] A network entity 105 or a UE 115 may use beam sweeping techniques as part of beamforming operations. For example, a network entity 105 (e.g., a base station 140, an RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a network entity 105 multiple times along different directions. For example, the network entity 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device, such as a network entity 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the network entity 105.
[0086] Some signals, such as data signals associated with a particular receiving device, may be transmitted by a transmitting device (e.g., a network entity 105 or a UE 115) along a single beam direction (e.g., a direction associated with the receiving device, such as another network entity 105 or UE 115) . In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted along one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the network entity 105 along different directions and may report to the network entity 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
[0087] In some examples, transmissions by a device (e.g., by a network entity 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from a network entity 105 to a UE 115) . The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more sub-bands. The network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) . Although these techniques are described with reference to signals transmitted along one or more directions by a network entity 105 (e.g., a base station 140, an RU 170) , a UE 115 may employ similar techniques for transmitting signals multiple times along different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal along a single direction (e.g., for transmitting data to a receiving device) .
[0088] A receiving device (e.g., a UE 115) may perform reception operations in accordance with multiple receive configurations (e.g., directional listening) when receiving various signals from a transmitting device (e.g., a network entity 105) , such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may perform reception in accordance with multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) . The single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
[0089] The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. An RLC layer may perform packet segmentation and reassembly to communicate via logical channels. A MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer also may implement error detection techniques, error correction techniques, or both to support retransmissions to improve link efficiency. In the control plane, an RRC layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a network entity 105 or a core network 130 supporting radio bearers for user plane data. A PHY layer may map transport channels to physical channels.
[0090] The UEs 115 and the network entities 105 may support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly via a communication link (e.g., the communication link (s) 125, a D2D communication link 135) . HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) . HARQ may improve throughput at the MAC layer in relatively poor radio conditions (e.g., low signal-to-noise conditions) . In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific slot for data received via a previous symbol in the slot. In some other examples, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
[0091] A UE 115 may receive a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal. In some examples, one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and wherein a header portion of a packet carrying the map identifies the geographic region. The UE 115 may receive one or more data signals while operating in the geographic region of the map. In some aspects, the data signals may also be beamformed and transmitted using one or more transmission parameters that are in accordance with CSI associated with the geographic area.
[0092] A network entity 105 may obtain information identifying a map for a geographic region, wherein the information further identifies the geographic region. The network entity 105 may select one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The network entity 105 may output a beamformed signal indicating the map for the geographic region, wherein the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0093] FIG. 2 shows an example of a wireless communications system 200 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. Wireless communications system 200 may implement aspects of wireless communications system 100. Wireless communications system 200 may include a UE 205, a network entity 210, and a network server 215, which may be examples of the corresponding devices described herein. For example, the network server 215 may be an example of a network entity, device, or function providing, managing, or otherwise associated with aspects of maps. The network server 215 may be operably communicating with the network entity 210 via a core network (e.g., the network server 215 may be a part of the core network or apart from the core network) .
[0094] Wireless networks may be leveraged in support of various automobile automation and safety features. For example, such networks may support self-driving functionality, navigation functionality, situational awareness functionality, safety functionality, and a myriad of other features or functions that may support current and future vehicle-automation. Another example may include the wireless network being used to support accurate geometric and geographic information provided to and used by the vehicles, such as the delivery of high-definition maps. Such functionality may be critical to a high degree of automation for autonomous vehicles. Such maps may be associated with a large amount of information or data being exchanged via the wireless networks, such as each map tile being from 15 to 100 megabytes of data. Current trends suggest that there will be more and more autonomous vehicles on the road such that the efficient broadcast or multicast designs may be helpful when delivering such maps to the large number of autonomous vehicles on the road.
[0095] In some wireless networks, there may be a correlation between the area covered by a map and the coverage area of the beamformed signal used to carry or otherwise convey the map packet. For example, the area of a high-definition map packet may be the same as or highly correlated to the geographic region of the beamformed signal used for communicating the map packet to the vehicle. With more and more autonomous vehicles on the road, high-definition map downloading can be a non-trivial task for the wireless network.
[0096] Accordingly, aspects of the techniques described herein may leverage such correlation to improve broadcast or multicast efficiency when delivering such maps to vehicles. For example, aspects of the techniques described herein may be based on beamforming technology (e.g., digital or hybrid beamforming) . For the map downloading scenario, the physical region corresponding to the map content of a high- definition map packet may be the same as or highly correlated to the coverage area region of the MIMO beamforming (e.g., the beamformed signal) used to send the map packet.
[0097] For example, the network entity 210 may receive or otherwise obtain information identifying a map for a geographic region. In some aspects, the information may carry or otherwise convey identifying information for the geographic region. For example, the network entity 210 may receive or obtain the information identifying the map from the network server 215 (e.g., via a core network) . The information identifying the map may include, but is not limited to, a region identifier, a list of road segments, lane identifiers, or any other information that identifies the geographic region of the map.
[0098] This may include the network entity 210 receiving or otherwise obtaining a packet that includes the map from the network server 215. In this example, the information identifying the geographic region may be obtained from a header portion of the packet that includes the map. That is, the region information of the high-definition map (e.g., the list of road segments or lane identifiers) may be included in the header of the high-definition map packet. The header portion of the packet carrying the map may correspond to an upper layer header that the network entity 210 can access or otherwise read.
[0099] In other examples, the information identifying the map and the map packet may be separately signaled to the network entity 210. For example, the network entity 210 may receive a control message from the network server 215 that carries or otherwise conveys the information identifying the geographic region of the map. In this example, the control message may be separate from the packet that carries the map. That is, in this alternative the network server 215 may send a separate control message to the network entity 210 that carries or otherwise conveys the information identifying the geographic region.
[0100] In some aspects, the network entity 210 may use the information identifying the geographic region to select or otherwise identify various transmission parameter (s) of a beamformed signal. For example, the network entity 210 may identify or otherwise determine various channel performance metrics (e.g., CSI) associated with the geographic region and use the channel performance metrics to select the transmission parameters to be used for the beamformed signal. That is, the high-definition map may be broadcast or multicast to the vehicles in the geographic region or a region related to this region. For highly correlated regions, for example, the vehicles at an intersection waiting in the lane to turn may expect the map for the road or lane they are turning into.
[0101] The network entity 210 may use this geographic region information to lookup or otherwise determine various channel performance metric reports (e.g., CSI) for the vehicles in the geographic region of the map. This information may be collected ahead of time or be current channel performance metric reports obtained from vehicle (s) currently in the region. In some aspects, a time window for such channel performance metrics (e.g., how old the most recent reports can be) may be (pre) configured for or by the network entity 210. Both long-term statistics and recent reports may be useful and used by the network entity 210 when selecting the various transmission parameters to be used for the beamformed signal to be used for communicating the map packet to vehicles within the region. For example, with the channel performance matrix or metrics from different geographic regions (e.g., for one or more slots) , the network entity 210 may compute or otherwise determine the optimal precoding vectors for the different regions (as well as the optimal scheduling) that minimizes inter-user interference across the regions.
[0102] In existing closed-loop MIMO, the user location or CSI needs to be collected by the network entity 210. However, for dense vehicle broadcasting or multicasting situations, the vehicles may not report their location information or CSI. Even if such reporting were supported, this information may be difficult to collect for so many vehicles in a high-density vehicle scenario. However, with the information identifying the geographic region in the header, even without such reporting the network entity 210 can know the vehicle location for the map packet. Thus, the network entity 210 may check the long-term statistics part of the CSI information to determine the channel performance metrics (e.g., CSI) . This may enable the MIMO beamforming for broadcasting or multicasting. For example, the network entity 210 broadcasts the map for ten regions simultaneously, with reach region having 12 vehicles, then the broadcast can serve 120 vehicles simultaneously sending ten map packets. Various algorithms may be applied for such beamforming.
[0103] Accordingly, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain, with the UE 205 referring to a vehicle in some examples) a beamformed signal that carries or otherwise conveys an indication of the map for the geographic region. As discussed, the beamformed signal may be correlated (e.g., be the same as or correlated to) the coverage area of the beamformed signal. That is, the coverage area of the beamformed signal may be correlated to the geographic region of the map. As discussed, various transmission parameter (s) of the beamformed signal may be selected in accordance with (e.g., selected based on) the channel performance metrics (e.g., CSI) associated with the geographic region. In some examples, the header portion of the packet carrying the map may carry or otherwise convey information identifying the geographic region. The UE 205 and the network entity 210 may exchange various data signal (s) while the UE 205 operates within the geographic region of the map. That is, the transmission parameter (s) selected for the beamformed signal may continue to be applied for data signal (s) transmissions with the UE 205 so long as the UE 205 is operating or otherwise located within the geographic region.
[0104] In some aspects, this may be based on a beamforming weighting table notification provided to the UE 205 by the network entity 210. For example, the UE 205 may receive or otherwise obtain (and the network entity 210 may transmit or otherwise output) a message that carries or otherwise conveys information identifying at least a portion of a beamforming weighting table that includes beamforming weights for geographic region (s) . The UE 205 may receive or otherwise obtain the beamformed signal indicating the map for the geographic region in accordance with the beamforming weight (s) included in the beamforming weighting table. For example, the network entity 210 may send the MIMO beamforming weighting table to the vehicle (s) (e.g., the UE 205) in its coverage area. The table may include the region identifiers within the coverage area of the network entity 210 and the corresponding maps. From the table, the vehicles (e.g., the UE 205) may obtain the beamforming weights using its region identifier as the key, which may then be used to decode the map packet. In some examples, the UE 205 may identify or otherwise determine its region identifier (e.g., which region (s) the UE 205 is or will be operating within) using satellite navigation (e.g., using global navigation satellite system (GNSS) ) .
[0105] In some aspects, at least the portion of the beamforming weighting table may be the complete beamforming weighting table or some of the beamforming weighting table. For example, the network entity 210 may transmit or otherwise output (and the UE 205 may receive or otherwise obtain) the complete beamforming weighting table corresponding to the coverage areas of the network entity 210 for the beamformed signal or a portion of the beamforming weighting table. The portion of the beamforming weighting table in this example may correspond to the coverage area within which the UE 205 receives the beamformed signal indicating the map. That is, in some examples the network entity 210 may broadcast the whole beamforming weighting table. The network entity 210 may broadcast the whole or complete beamforming weighting table using physical downlink shared channel (PDSCH) , in a medium access control-control element (MAC-CE) or in a MAC header. In other examples, the network entity 210 may split the beamforming weighting tale according to the region and broadcast or multicast the tables to their corresponding regions using beamformed signals.
[0106] In some aspects, the vehicles may inquiry the weight for its own region or the whole table (e.g., when building the connection with the network entity 210) . In this example, the network entity 210 may transmit or otherwise output the beamforming weighting table to the UE 205 in a unicast transmission. For example, the UE 205 may transmit or otherwise output (and the network entity 210 may receive or otherwise obtain) a request for a beamforming weight associated with (e.g., for) the coverage area within which the UE 205 receives the beamformed signal indicating the map. At least the portion of the beamforming weighting table may be received by the UE 205 in accordance with the request.
[0107] In some aspects, existing procedures for transmitting the weighting vectors may be used but may be modified to include the region identifiers as new fields. For example, the beamforming weighting table may include region identifiers corresponding to the geographic region (s) of the network entity 210 (e.g., the region identifiers for the geographic region (s) of the corresponding map (s) ) .
[0108] In some aspects, the techniques described herein may be based on an operating mode. For example, in one operating mode the vehicles may send map requests to the server (e.g., the network server 215 via the network entity 210) . The server may then compute or otherwise determine, for a certain slot, the region (s) to send the maps for (e.g., using the beamformed signal (s) ) . For example, in this mode the UE 205 may transmit or otherwise output (and the network entity 210, the network server 215, or both, may receive or otherwise obtain) a request for the map corresponding to the region in accordance with the UE 205 being located within the geographic region or in accordance with the UE 205 moving to the geographic region within a time threshold. The UE 205 may receive the indication of or other information identifying the map in response to the request.
[0109] In a second operating mode, the server (e.g., the UE 205) or a roadside unit (RSU) may ask or request that the network entity 210 broadcast or multicast the map (s) periodically to all region (s) in its coverage area or a subset of the regions within its coverage area. The periodicity of the periodic broadcasts or multicast transmissions using beamformed signals may be (pre) configured, in some examples. In the multicast example, if the network entity 210 is aware that in certain region (s) there are currently no vehicles, these regions can be excluded from transmission in the slot. Accordingly, in some examples the map may be received by the UE 205 according to a periodic schedule.
[0110] In the situation where the inter-user interference (or alternatively the rates) across geographic regions or within a region (e.g., using any precoding) is predicted to exceed a threshold based on collected channel information, the network entity 210 may cancel the multicast transmission (s) to certain regions and switch to a unicast transmission mode instead for the vehicle (s) in the region (s) . The threshold, in this example, may be (pre) configured or otherwise computed by the network entity 210.
[0111] As discussed, in some aspects the techniques described herein may be based on the operating mode. In the second operating mode, the network entity 210 may receive the map packets for ten regions (e.g., from the network server 215) and determine the region identifiers from the header portion of the map packets. Using the region identifiers, the network entity 210 may check the database and compute that sending packets to regions one-five always causes sever interference to receiving the map packets in regions six-ten. Thus, it may be more robust to broadcast the map packets for regions one-five in slot one and then broadcast the map packets for regions six-ten in slot two. This may leverage the correlation between the two based on if the region of a map is not the same as the destination region of the MIMO beamforming, the network entity 210 may not know the location of the vehicles from the header portion of the map packets. Thus, the network entity 210 may not know the database key to check for the CSI information, which may be helpful for beamforming.
[0112] FIG. 3 shows an example of a wireless communications system 300 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. Wireless communications system 300 may implement aspects of wireless communications system 100 or wireless communications system 200. Wireless communications system 300 may include a network entity 305, a vehicle 310, a vehicle 315, a vehicle 320, and a vehicle 325, which may be examples of the corresponding devices described herein. For example, the vehicle 310, the vehicle 315, the vehicle 320, and the vehicle 325 may be examples of a UE (e.g., UEs within or otherwise associated with a vehicle) .
[0113] As discussed above, aspects of the techniques described herein generally improve the efficiency of map distribution within a wireless network. For example, the network entity 305 may receive or otherwise obtain information identifying a map for a geographic region. The information, in this example, may generally identify the geographic region. For example, the information may indicate the region identifier, a list of road segment identifiers, lane identifiers, or other information that carries or otherwise conveys an identifier of the corresponding geographic region. In some examples, the information identifying the geographic region may be included in a header portion of the map packet or signaled separately (e.g., in a control message) to the network entity 305 (e.g., from a network server associated with the map) .
[0114] The network entity 305 may select various transmission parameter (s) for a beamformed signal using the channel performance metric (s) (e.g., CSI) associated with the geographic region. For example, the network entity 305 may access a database or other information stored that identifies the channel performance metric (s) (e.g., CSI) corresponding to the geographic region. The information may be historical or current CSI or other reports obtained from vehicles (e.g., UEs) within the geographic region of the map. The network entity 305 may transmit or otherwise output a beamformed signal that indicates the map for the geographic region. The beamformed signal in this example may be at least partially correlated to the coverage area of the beamformed signal (e.g., the coverage area of the beamformed signal may be the same as or correlated to the geographic region of the map) .
[0115] The vehicles (e.g., the UEs) within each geographic region may receive the beamformed signal indicating the map for the geographic region that is correlated to the coverage area of the beamformed signal and use the map for various features or functions. For example, the UE and the network entity 305 may perform various data signal transmissions while the UE is operating in the geographic region.
[0116] In the non-limiting example shown in FIG. 3, this may include the network entity 305 transmitting a first beamformed signal (e.g., using beam 1) indicating a map (e.g., map 1) for a first geographic region (e.g., region 1) that is correlated with the coverage area of the beamformed signal. This may include the vehicle 310 and the vehicle 315 receiving the beamformed signal that indicates the map for the geographic region that the vehicles are operating within (e.g., region 1) .
[0117] This may also include the network entity 305 transmitting a second beamformed signal (e.g., using beam 2) indicating a map (e.g., map 2) for a second geographic region (e.g., region 2) . This may include the vehicle 320 and the vehicle 325 receiving the beamformed signal that indicates the map for the geographic region that the vehicles are operating within (e.g., region 2) .
[0118] For example, the network entity 305 may broadcast the maps to vehicles near an interchange. All destination vehicles may be in the same geographic region (e.g., the vehicle 310 and the vehicle 315 are in the region 1 while the vehicle 320 and the vehicle 325 are in the region 2) so they need the map of their current region. The region (e.g., the coverage area) of the MIMO beamformed signal may correspond or otherwise be correlated with the region of the map. In one case, this may include the situation where the physical region corresponding to the map content is also the region where the vehicles are located (e.g., the coverage area of the beamformed signal is the same as geographic region of the map) . Thus, in this example both the vehicle 310 and the vehicle 315 may receive a map corresponding to region 1 while the vehicle 320 and the vehicle 325 may receive a map corresponding to region 2.
[0119] In another example (such as at an intersection) , vehicle (s) waiting to turn may receive a map that corresponds to a physical region that is not the current geographic region that the vehicle is located. For example, the geographic region of the map may be where the vehicle needs to go into, which would correspond to the geographic region that the vehicle is turning into. In this example, the region of the turning vehicle is correlated to the region of the current region at the intersection. Thus, in this example either of the vehicle 310 and the vehicle 315 may receive a map corresponding to region 2 (if these vehicles where in turn lanes to turn left into region 2) while either of the vehicle 320 and the vehicle 325 may receive a map corresponding to region 1 (if these vehicles are turning into region 1) . Although the techniques are generally described in relation to turning vehicles, in other examples the vehicles at a stop light or intersection in a non-turning lane may receive a map corresponding to the region going straight (e.g., the other side of the intersection) .
[0120] FIG. 4 shows an example of a wireless communications system 400 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. Wireless communications system 400 may implement aspects of wireless communications system 100, wireless communications system 200, or wireless communications system 300. Wireless communications system 400 may include a network entity 405, a vehicle 410, a vehicle 415, a vehicle 420, and a vehicle 425, which may be examples of the corresponding devices described herein. For example, the vehicle 410, the vehicle 415, the vehicle 420, and the vehicle 425 may be examples of a UE (e.g., UEs within or otherwise associated with a vehicle) .
[0121] As discussed above, aspects of the techniques described herein generally improve the efficiency of map distribution within a wireless network. For example, the network entity 405 may receive or otherwise obtain information identifying a map for a geographic region. The information, in this example, may generally identify the geographic region. For example, the information may indicate the region identifier, a list of road segment identifiers, lane identifiers, or other information that carries or otherwise conveys an identifier of the corresponding geographic region of the map. In some examples, the information identifying the geographic region may be included in a header portion of the map packet or signaled separately (e.g., in a control message) to the network entity 405 (e.g., from a network server associated with the map) .
[0122] The network entity 405 may select various transmission parameter (s) for a beamformed signal using the channel performance metric (s) (e.g., CSI) associated with the geographic region. For example, the network entity 405 may access a database or other information that identifies the channel performance metric (s) corresponding to the geographic region. The information may be historical or current CSI or other reports obtained from vehicles (e.g., UEs) within the geographic region of the map. The network entity 405 may transmit or otherwise output a beamformed signal that indicates the map for the geographic region. The beamformed signal in this example may be at least partially correlated to the coverage area of the beamformed signal (e.g., the coverage area of the beamformed signal may be the same as or correlated to the geographic region of the map) .
[0123] The vehicles (e.g., the UEs) within each geographic region may receive the beamformed signal indicating the map for the geographic region that is correlated to the coverage area of the beamformed signal and use the map for various features or functions. For example, the UE and the network entity 405 may perform various beamformed data signal transmissions while the UE is operating in the geographic region.
[0124] In the non-limiting example shown in FIG. 4, this may include the network entity 405 transmitting a first beamformed signal (e.g., using beam 1) indicating a map (e.g., map 1) for a first geographic region (e.g., region 1) that is correlated with the coverage area of the beamformed signal. This may include the vehicle 410 and the vehicle 415 receiving the beamformed signal that indicates the map for the geographic region that the vehicles are operating within (e.g., region 1) . This may also include the network entity 405 transmitting a second beamformed signal (e.g., using beam 2) indicating a map (e.g., map 2) for a second geographic region (e.g., region 2) . This may include the vehicle 420 and the vehicle 425 receiving the beamformed signal that indicates the map for the geographic region that the vehicles are operating within (e.g., region 2) . In other examples, the map may be for a geographic region that the vehicles are not currently operating within, but are expected to be operating within (e.g., within a time window) . This may be based on which lane the vehicle is located within at an intersection, as one example.
[0125] In some aspects, the techniques described herein may further support negative-acknowledgement (NACK) binning within the wireless communications system 400. For the geo-information MIMO beamforming, the vehicles in need of a map may send a one-bit NACK feedback based on the region information. For example, the network entity 405 may transmit or otherwise output (and the vehicle (s) / UE (s) may receive or otherwise obtain) an indication of a shared resource that is allocated for transmission of the NACK indication associated with the map for the geographic region. The shared resource may generally be available for use by multiple vehicle (s) / UE (s) located within the geographic region.
[0126] Thus, vehicles located in the same beamforming region may be given the same physical uplink control channel (PUCCH) resource for sending the NACK indication. As long as at least one vehicle in the region sends a NACK indication, the network entity 405 may decode that a retransmission is needed for the map in the corresponding region. For example, the network entity 405 may broadcast or multicast maps for 10 regions simultaneously, with each region having 12 vehicles (e.g., 120 vehicles in total) . Then, the network entity 405 may be (pre) configured or signaled that the 12 vehicles in each region are assigned one resource (e.g., the shared resource) for sending a NACK indication. Thus, there may be 10 NACK resources corresponding to the downlink data transmissions (e.g., 10 resources for NACK signaling rather than 120 NACK resources) . That is, in some wireless networks 120 NACK resources for the 120 vehicles or one NACK resource for the 120 vehicles may be reserved. Reserving 120 NACK resources is excessive and inefficiently uses PUCCH resources while reserving 1 NACK resource does not provide sufficient clarity for the network entity 405 (e.g., it would be unclear which map packet was unsuccessfully decoded, which may trigger 10 retransmissions rather than one) .
[0127] In some aspects, the exact slot (s) and physical resource block (s) (PRB) (s) for the NACK resources may be computed by the region information (e.g., the region identifier, lane identifier, and the like) using a (pre) configured function or hash mapping. Each region may generally correspond to multiple resources such that the network entity 405 can estimate the number of vehicles not decoding the map packet, which may be helpful for prioritizing retransmissions. Vehicles moving to other regions may choose not to send a NACK indication for an unsuccessfully decoded map for their current region as they may not need the map for their current region anymore. In some aspects, these described techniques may be connection-based (e.g., when the UE (s) are operating in a connected mode or state) or may be connectionless (e.g., when the UE (s) are operating in an inactive or idle mode or state) . One alternative to the shared resource for the NACK indication is for each vehicle to resend a request for the map tiles, which may consume additional resources when the number of vehicles is large.
[0128] Various techniques may be used by the vehicles to identify or otherwise determine their geographic region. For example, the vehicles may identify or otherwise determine a region identifier associated with the geographic region of the map and use the region identifier to identify or otherwise determine the shared resources for the NACK indication. For example, the vehicles may get to know or otherwise determine its region identifier (e.g., either signaled by the network entity 405, derived from the map packet, or computed using the GNSS signal) . The NACK slots and PRBs (e.g., the shared resources for the NACK indication) may be identified or otherwise determined based on various information. For example, the NACKs and PRBs may be defined for the wireless communications system 400, may be based on a (pre) configuration (e.g., an RRC parameter that enables or disables the use for the NACK feedback resource for the geographic region) , based on a MAC-CE indication, based on a feedback priority (e.g., enabled for high priority feedback) , based on an enable or disable field in a downlink control information (DCI) , or based on a separate feedback indicator resource field in a DCI.
[0129] In some aspects, the NACK indication provided to the network entity 405 may also include bit (s) identifying a redundancy version (RV) associated with the map packet. That is, the RV indication may be provide for the map packet multicast. In some wireless networks, RV [0, 2, 3, 1] are used where only RV 0 and RV 3 are independently decodable. It may be assumed that the UE received RV 0, whether it is decoded or not. However, for the map broadcast or multicast scenario, there is one different from current HARQ processes. The map packets may be sent periodically, so depending on when the vehicle begins to receive the map packet, the vehicle may have received RV 0 or may have received another RV (e.g., RV 2 or RV 1) . Accordingly, aspects of the techniques may include a two-bit NACK indication where the second bit indicates whether an independently decodable RV has been received (e.g., either RV 0 or RV 3) . If after the described NACK binning procedure are performed and there is at least one vehicle that has not received RV 0 or RV 3, the next retransmission of the map packet by the network entity 405 may be RV 0. The two-bit NACK indication may be supported in PUCCH in some wireless networks. However, the meaning or interpretation of the second bit may be reconfigured according to the techniques described herein.
[0130] Moreover, some aspects of the techniques described herein may provide for MIMO broadcasting for DCI. In some wireless networks for PDCCH, only open-looped MIMO may be supported. But since the network entity 405 can query the CSI information using the region identifier in the header portion of the map packet as the key, closed-loop MIMO broadcasting DCI can be supported. For the 120-vehicle example, in some wireless networks, the network entity 405 would need to send a DCI for each of the 120 vehicles or at least 10 times one region each time. However, according to the techniques described herein only one or a couple of resources may be used (e.g., a 90 percent resource usage reduction) . The DCI may include a region identifier field, in some examples. One or more bits in the DCI may be used to indicate that it is a DCI for the beamforming techniques described herein.
[0131] In the example shown in FIG. 4, this may include the network entity 405 transmitting or otherwise outputting a DCI and the corresponding PDSCH to the vehicle 410 and the vehicle 415 located in region 1. The network entity 405 may also transmit or otherwise output a DCI and the corresponding PDSCH to the vehicle 420 and the vehicle 425 located in region 2. Each DCI may have bit (s) indicating the features described herein (e.g., region identifiers for the corresponding regions) . In some examples, the PDSCH in this example may include the map for the corresponding region. Accordingly, each vehicle within a region may attempt to decode the map packet. If successfully decoded, the vehicle may use the map, along with other information, to perform various data signal communications (e.g., data signal (s) ) with the network entity 405 while operating in the region. If unsuccessfully decode, the vehicle may identify the shared resource for the region and transmit or otherwise output a NCK indication (e.g., NACK feedback) to the network entity 405 for the map. This may trigger a retransmission of the map by the network entity 405 for each region that is associated with a NACK indication.
[0132] FIG. 5 shows a block diagram 500 of a device 505 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. The device 505, or one or more components of the device 505 (e.g., the receiver 510, the transmitter 515, the communications manager 520) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0133] The receiver 510 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to beamforming for wireless transmission of geographic information) . Information may be passed on to other components of the device 505. The receiver 510 may utilize a single antenna or a set of multiple antennas.
[0134] The transmitter 515 may provide a means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to beamforming for wireless transmission of geographic information) . In some examples, the transmitter 515 may be co-located with a receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a set of multiple antennas.
[0135] The communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be examples of means for performing various aspects of beamforming for wireless transmission of geographic information as described herein. For example, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0136] In some examples, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a digital signal processor (DSP) , a central processing unit (CPU) , an application-specific integrated circuit (ASIC) , a field-programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0137] Additionally, or alternatively, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0138] In some examples, the communications manager 520 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 510, the transmitter 515, or both. For example, the communications manager 520 may receive information from the receiver 510, send information to the transmitter 515, or be integrated in combination with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.
[0139] The communications manager 520 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 520 is capable of, configured to, or operable to support a means for receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The communications manager 520 is capable of, configured to, or operable to support a means for receiving one or more data signals while operating in the geographic region of the map.
[0140] By including or configuring the communications manager 520 in accordance with examples as described herein, the device 505 (e.g., at least one processor controlling or otherwise coupled with the receiver 510, the transmitter 515, the communications manager 520, or a combination thereof) may support techniques for improved broadcast or multicast transmission of maps corresponding to a geographic region where the coverage area of the beamformed signal used to carry the map packets is correlated to the map.
[0141] FIG. 6 shows a block diagram 600 of a device 605 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The device 605 may be an example of aspects of a device 505 or a UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communications manager 620. The device 605, or one of more components of the device 605 (e.g., the receiver 610, the transmitter 615, the communications manager 620) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0142] The receiver 610 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to beamforming for wireless transmission of geographic information) . Information may be passed on to other components of the device 605. The receiver 610 may utilize a single antenna or a set of multiple antennas.
[0143] The transmitter 615 may provide a means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to beamforming for wireless transmission of geographic information) . In some examples, the transmitter 615 may be co-located with a receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a set of multiple antennas.
[0144] The device 605, or various components thereof, may be an example of means for performing various aspects of beamforming for wireless transmission of geographic information as described herein. For example, the communications manager 620 may include a map manager 625 a data manager 630, or any combination thereof. The communications manager 620 may be an example of aspects of a communications manager 520 as described herein. In some examples, the communications manager 620, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 610, the transmitter 615, or both. For example, the communications manager 620 may receive information from the receiver 610, send information to the transmitter 615, or be integrated in combination with the receiver 610, the transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.
[0145] The communications manager 620 may support wireless communications in accordance with examples as disclosed herein. The map manager 625 is capable of, configured to, or operable to support a means for receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The data manager 630 is capable of, configured to, or operable to support a means for receiving one or more data signals while operating in the geographic region of the map.
[0146] FIG. 7 shows a block diagram 700 of a communications manager 720 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The communications manager 720 may be an example of aspects of a communications manager 520, a communications manager 620, or both, as described herein. The communications manager 720, or various components thereof, may be an example of means for performing various aspects of beamforming for wireless transmission of geographic information as described herein. For example, the communications manager 720 may include a map manager 725, a data manager 730, a weighting table manager 735, a request manager 740, a NACK manager 745, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
[0147] The communications manager 720 may support wireless communications in accordance with examples as disclosed herein. The map manager 725 is capable of, configured to, or operable to support a means for receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The data manager 730 is capable of, configured to, or operable to support a means for receiving one or more data signals while operating in the geographic region of the map.
[0148] In some examples, the weighting table manager 735 is capable of, configured to, or operable to support a means for receiving a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, where the beamformed signal indicating the map for the geographic region is received in accordance with the beamforming weights that are included in the beamforming weighting table.
[0149] In some examples, receiving at least the portion of the beamforming weighting table includes receiving a complete beamforming weighting table corresponding to a set of coverage areas of a transmitting device for the beamformed signal or receiving a portion of the beamforming weighting table, the portion corresponding to the coverage area within which the UE receives the beamformed signal indicating the map.
[0150] In some examples, the weighting table manager 735 is capable of, configured to, or operable to support a means for transmitting a request for a beamforming weight associated with the coverage area within which the UE receives the beamformed signal indicating the map, where at least the portion of the beamforming weighting table is received in accordance with the request. In some examples, the beamforming weighting table includes one or more region identifiers corresponding to the one or more geographic regions.
[0151] In some examples, the request manager 740 is capable of, configured to, or operable to support a means for transmitting a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, where the beamformed signal indicating the map is received in accordance with the request. In some examples, the map is received in accordance with a periodic schedule.
[0152] In some examples, the NACK manager 745 is capable of, configured to, or operable to support a means for receiving an indication of a shared resource allocated for transmission of a NACK indication associated with the map for the geographic region, where the shared resource is for multiple UEs located within the geographic region. In some examples, the NACK manager 745 is capable of, configured to, or operable to support a means for identifying a region identifier associated with the geographic region of the map, where the set of shared resources are identified in accordance with the region identifier. In some examples, the NACK indication includes one or more bits identifying a redundancy version associated with a packet that includes the map.
[0153] FIG. 8 shows a diagram of a system 800 including a device 805 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The device 805 may be an example of or include components of a device 505, a device 605, or a UE 115 as described herein. The device 805 may communicate (e.g., wirelessly) with one or more other devices (e.g., network entities 105, UEs 115, or a combination thereof) . The device 805 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 820, an input / output (I / O) controller, such as an I / O controller 810, a transceiver 815, one or more antennas 825, at least one memory 830, code 835, and at least one processor 840. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 845) .
[0154] The I / O controller 810 may manage input and output signals for the device 805. The I / O controller 810 may also manage peripherals not integrated into the device 805. In some cases, the I / O controller 810 may represent a physical connection or port to an external peripheral. In some cases, the I / O controller 810 may utilize an operating system such as or another known operating system. Additionally, or alternatively, the I / O controller 810 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I / O controller 810 may be implemented as part of one or more processors, such as the at least one processor 840. In some cases, a user may interact with the device 805 via the I / O controller 810 or via hardware components controlled by the I / O controller 810.
[0155] In some cases, the device 805 may include a single antenna. However, in some other cases, the device 805 may have more than one antenna, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 815 may communicate bi-directionally via the one or more antennas 825 using wired or wireless links as described herein. For example, the transceiver 815 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 815 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 825 for transmission, and to demodulate packets received from the one or more antennas 825. The transceiver 815, or the transceiver 815 and one or more antennas 825, may be an example of a transmitter 515, a transmitter 615, a receiver 510, a receiver 610, or any combination thereof or component thereof, as described herein.
[0156] The at least one memory 830 may include random access memory (RAM) and read-only memory (ROM) . The at least one memory 830 may store computer-readable, computer-executable, or processor-executable code, such as the code 835. The code 835 may include instructions that, when executed by the at least one processor 840, cause the device 805 to perform various functions described herein. The code 835 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 835 may not be directly executable by the at least one processor 840 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 830 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.
[0157] The at least one processor 840 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 840 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the at least one processor 840. The at least one processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., the at least one memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting beamforming for wireless transmission of geographic information) . For example, the device 805 or a component of the device 805 may include at least one processor 840 and at least one memory 830 coupled with or to the at least one processor 840, the at least one processor 840 and the at least one memory 830 configured to perform various functions described herein.
[0158] In some examples, the at least one processor 840 may include multiple processors and the at least one memory 830 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 described herein. In some examples, the at least one processor 840 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 840) and memory circuitry (which may include the at least one memory 830) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 840 or a processing system including the at least one processor 840 may be configured to, configurable to, or operable to cause the device 805 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code 835 (e.g., processor-executable code) stored in the at least one memory 830 or otherwise, to perform one or more of the functions described herein.
[0159] The communications manager 820 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 820 is capable of, configured to, or operable to support a means for receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The communications manager 820 is capable of, configured to, or operable to support a means for receiving one or more data signals while operating in the geographic region of the map.
[0160] By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 may support techniques improved broadcast or multicast transmission of maps corresponding to a geographic region where the coverage area of the beamformed signal used to carry the map packets is correlated to the map.
[0161] In some examples, the communications manager 820 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 815, the one or more antennas 825, or any combination thereof. For example, the communications manager 820 may be configured to receive or transmit messages or other signaling as described herein via the transceiver 815. Although the communications manager 820 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 820 may be supported by or performed by the at least one processor 840, the at least one memory 830, the code 835, or any combination thereof. For example, the code 835 may include instructions executable by the at least one processor 840 to cause the device 805 to perform various aspects of beamforming for wireless transmission of geographic information as described herein, or the at least one processor 840 and the at least one memory 830 may be otherwise configured to, individually or collectively, perform or support such operations.
[0162] FIG. 9 shows a block diagram 900 of a device 905 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The device 905 may be an example of aspects of a network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. The device 905, or one or more components of the device 905 (e.g., the receiver 910, the transmitter 915, the communications manager 920) , may include at least one processor, which may be coupled with at least one memory, to, individually or collectively, support or enable the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0163] The receiver 910 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 905. In some examples, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0164] The transmitter 915 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 905. For example, the transmitter 915 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 915 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 915 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include or be coupled with a modem.
[0165] The communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be examples of means for performing various aspects of beamforming for wireless transmission of geographic information as described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be capable of performing one or more of the functions described herein.
[0166] In some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include at least one of a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure. In some examples, at least one processor and at least one memory coupled with the at least one processor may be configured to perform one or more of the functions described herein (e.g., by one or more processors, individually or collectively, executing instructions stored in the at least one memory) .
[0167] Additionally, or alternatively, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by at least one processor (e.g., referred to as a processor-executable code) . If implemented in code executed by at least one processor, the functions of the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting, individually or collectively, a means for performing the functions described in the present disclosure) .
[0168] In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.
[0169] The communications manager 920 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 920 is capable of, configured to, or operable to support a means for obtaining information identifying a map for a geographic region, where the information further identifies the geographic region. The communications manager 920 is capable of, configured to, or operable to support a means for selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The communications manager 920 is capable of, configured to, or operable to support a means for outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0170] By including or configuring the communications manager 920 in accordance with examples as described herein, the device 905 (e.g., at least one processor controlling or otherwise coupled with the receiver 910, the transmitter 915, the communications manager 920, or a combination thereof) may support techniques for improved broadcast or multicast transmission of maps corresponding to a geographic region where the coverage area of the beamformed signal used to carry the map packets is correlated to the map.
[0171] FIG. 10 shows a block diagram 1000 of a device 1005 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of aspects of a device 905 or a network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. The device 1005, or one of more components of the device 1005 (e.g., the receiver 1010, the transmitter 1015, the communications manager 1020) , may include at least one processor, which may be coupled with at least one memory, to support the described techniques. Each of these components may be in communication with one another (e.g., via one or more buses) .
[0172] The receiver 1010 may provide a means for obtaining (e.g., receiving, determining, identifying) information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . Information may be passed on to other components of the device 1005. In some examples, the receiver 1010 may support obtaining information by receiving signals via one or more antennas. Additionally, or alternatively, the receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof.
[0173] The transmitter 1015 may provide a means for outputting (e.g., transmitting, providing, conveying, sending) information generated by other components of the device 1005. For example, the transmitter 1015 may output information such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units) associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) . In some examples, the transmitter 1015 may support outputting information by transmitting signals via one or more antennas. Additionally, or alternatively, the transmitter 1015 may support outputting information by transmitting signals via one or more wired (e.g., electrical, fiber optic) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include or be coupled with a modem.
[0174] The device 1005, or various components thereof, may be an example of means for performing various aspects of beamforming for wireless transmission of geographic information as described herein. For example, the communications manager 1020 may include a map manager 1025, a transmission parameter manager 1030, a beam manager 1035, or any combination thereof. The communications manager 1020 may be an example of aspects of a communications manager 920 as described herein. In some examples, the communications manager 1020, or various components thereof, may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the receiver 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, send information to the transmitter 1015, or be integrated in combination with the receiver 1010, the transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.
[0175] The communications manager 1020 may support wireless communications in accordance with examples as disclosed herein. The map manager 1025 is capable of, configured to, or operable to support a means for obtaining information identifying a map for a geographic region, where the information further identifies the geographic region. The transmission parameter manager 1030 is capable of, configured to, or operable to support a means for selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The beam manager 1035 is capable of, configured to, or operable to support a means for outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0176] FIG. 11 shows a block diagram 1100 of a communications manager 1120 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The communications manager 1120 may be an example of aspects of a communications manager 920, a communications manager 1020, or both, as described herein. The communications manager 1120, or various components thereof, may be an example of means for performing various aspects of beamforming for wireless transmission of geographic information as described herein. For example, the communications manager 1120 may include a map manager 1125, a transmission parameter manager 1130, a beam manager 1135, a server manager 1140, a weighting table manager 1145, a request manager 1150, or any combination thereof. Each of these components, or components or subcomponents thereof (e.g., one or more processors, one or more memories) , may communicate, directly or indirectly, with one another (e.g., via one or more buses) . The communications may include communications within a protocol layer of a protocol stack, communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with a network entity 105, between devices, components, or virtualized components associated with a network entity 105) , or any combination thereof.
[0177] The communications manager 1120 may support wireless communications in accordance with examples as disclosed herein. The map manager 1125 is capable of, configured to, or operable to support a means for obtaining information identifying a map for a geographic region, where the information further identifies the geographic region. The transmission parameter manager 1130 is capable of, configured to, or operable to support a means for selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The beam manager 1135 is capable of, configured to, or operable to support a means for outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0178] In some examples, the server manager 1140 is capable of, configured to, or operable to support a means for receiving a packet that includes the map from a network server, where the information further identifying the geographic region is obtained from a header portion of the packet that includes the map. In some examples, the server manager 1140 is capable of, configured to, or operable to support a means for receiving, by the network entity, a control message that indicates the information further identifying the geographic region, where the control message is separate from a packet that includes the map.
[0179] In some examples, the weighting table manager 1145 is capable of, configured to, or operable to support a means for outputting a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, where the beamformed signal indicating the map for the geographic region is output in accordance with one or more beamforming weights that are included in at least the portion of the beamforming weighting table.
[0180] In some examples, the request manager 1150 is capable of, configured to, or operable to support a means for obtaining, from a UE, a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, where the beamformed signal indicating the map is output in accordance with the request. In some examples, an indication of the map is output to each geographic region within a set of geographic regions in accordance with a periodic schedule. In some examples, one or more respective transmission parameters for each geographic region in the set of geographic regions are in accordance with corresponding CSI for the geographic region.
[0181] FIG. 12 shows a diagram of a system 1200 including a device 1205 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The device 1205 may be an example of or include components of a device 905, a device 1005, or a network entity 105 as described herein. The device 1205 may communicate with other network devices or network equipment such as one or more of the network entities 105, UEs 115, or any combination thereof. The communications may include communications over one or more wired interfaces, over one or more wireless interfaces, or any combination thereof. The device 1205 may include components that support outputting and obtaining communications, such as a communications manager 1220, a transceiver 1210, one or more antennas 1215, at least one memory 1225, code 1230, and at least one processor 1235. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1240) .
[0182] The transceiver 1210 may support bi-directional communications via wired links, wireless links, or both as described herein. In some examples, the transceiver 1210 may include a wired transceiver and may communicate bi-directionally with another wired transceiver. Additionally, or alternatively, in some examples, the transceiver 1210 may include a wireless transceiver and may communicate bi-directionally with another wireless transceiver. In some examples, the device 1205 may include one or more antennas 1215, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently) . The transceiver 1210 may also include a modem to modulate signals, to provide the modulated signals for transmission (e.g., by one or more antennas 1215, by a wired transmitter) , to receive modulated signals (e.g., from one or more antennas 1215, from a wired receiver) , and to demodulate signals. In some implementations, the transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled with the one or more antennas 1215 that are configured to support various receiving or obtaining operations, or one or more interfaces coupled with the one or more antennas 1215 that are configured to support various transmitting or outputting operations, or a combination thereof. In some implementations, the transceiver 1210 may include or be configured for coupling with one or more processors or one or more memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other outputting, or any combination thereof. In some implementations, the transceiver 1210, or the transceiver 1210 and the one or more antennas 1215, or the transceiver 1210 and the one or more antennas 1215 and one or more processors or one or more memory components (e.g., the at least one processor 1235, the at least one memory 1225, or both) , may be included in a chip or chip assembly that is installed in the device 1205. In some examples, the transceiver 1210 may be operable to support communications via one or more communications links (e.g., communication link (s) 125, backhaul communication link (s) 120, a midhaul communication link 162, a fronthaul communication link 168) .
[0183] The at least one memory 1225 may include RAM, ROM, or any combination thereof. The at least one memory 1225 may store computer-readable, computer-executable, or processor-executable code, such as the code 1230. The code 1230 may include instructions that, when executed by one or more of the at least one processor 1235, cause the device 1205 to perform various functions described herein. The code 1230 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1230 may not be directly executable by a processor of the at least one processor 1235 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the at least one memory 1225 may include, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices. In some examples, the at least one processor 1235 may include multiple processors and the at least one memory 1225 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 (for example, as part of a processing system) .
[0184] The at least one processor 1235 may include one or more intelligent hardware devices (e.g., one or more general-purpose processors, one or more DSPs, one or more CPUs, one or more graphics processing units (GPUs) , one or more neural processing units (NPUs) (also referred to as neural network processors or deep learning processors (DLPs) ) , one or more microcontrollers, one or more ASICs, one or more FPGAs, one or more programmable logic devices, discrete gate or transistor logic, one or more discrete hardware components, or any combination thereof) . In some cases, the at least one processor 1235 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into one or more of the at least one processor 1235. The at least one processor 1235 may be configured to execute computer-readable instructions stored in a memory (e.g., one or more of the at least one memory 1225) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting beamforming for wireless transmission of geographic information) . For example, the device 1205 or a component of the device 1205 may include at least one processor 1235 and at least one memory 1225 coupled with one or more of the at least one processor 1235, the at least one processor 1235 and the at least one memory 1225 configured to perform various functions described herein. The at least one processor 1235 may be an example of a cloud-computing platform (e.g., one or more physical nodes and supporting software such as operating systems, virtual machines, or container instances) that may host the functions (e.g., by executing code 1230) to perform the functions of the device 1205. The at least one processor 1235 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1205 (such as within one or more of the at least one memory 1225) .
[0185] In some examples, the at least one processor 1235 may include multiple processors and the at least one memory 1225 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. In some examples, the at least one processor 1235 may be a component of a processing system, which may refer to a system (such as a series) of machines, circuitry (including, for example, one or both of processor circuitry (which may include the at least one processor 1235) and memory circuitry (which may include the at least one memory 1225) ) , or components, that receives or obtains inputs and processes the inputs to produce, generate, or obtain a set of outputs. The processing system may be configured to perform one or more of the functions described herein. For example, the at least one processor 1235 or a processing system including the at least one processor 1235 may be configured to, configurable to, or operable to cause the device 1205 to perform one or more of the functions described herein. Further, as described herein, being “configured to, ” being “configurable to, ” and being “operable to” may be used interchangeably and may be associated with a capability, when executing code stored in the at least one memory 1225 or otherwise, to perform one or more of the functions described herein.
[0186] In some examples, a bus 1240 may support communications of (e.g., within) a protocol layer of a protocol stack. In some examples, a bus 1240 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack) , which may include communications performed within a component of the device 1205, or between different components of the device 1205 that may be co-located or located in different locations (e.g., where the device 1205 may refer to a system in which one or more of the communications manager 1220, the transceiver 1210, the at least one memory 1225, the code 1230, and the at least one processor 1235 may be located in one of the different components or divided between different components) .
[0187] In some examples, the communications manager 1220 may manage aspects of communications with a core network 130 (e.g., via one or more wired or wireless backhaul links) . For example, the communications manager 1220 may manage the transfer of data communications for client devices, such as one or more UEs 115. In some examples, the communications manager 1220 may manage communications with one or more other network entities 105, and may include a controller or scheduler for controlling communications with UEs 115 (e.g., in cooperation with the one or more other network devices) . In some examples, the communications manager 1220 may support an X2 interface within an LTE / LTE-A wireless communications network technology to provide communication between network entities 105.
[0188] The communications manager 1220 may support wireless communications in accordance with examples as disclosed herein. For example, the communications manager 1220 is capable of, configured to, or operable to support a means for obtaining information identifying a map for a geographic region, where the information further identifies the geographic region. The communications manager 1220 is capable of, configured to, or operable to support a means for selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The communications manager 1220 is capable of, configured to, or operable to support a means for outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0189] By including or configuring the communications manager 1220 in accordance with examples as described herein, the device 1205 may support techniques for improved broadcast or multicast transmission of maps corresponding to a geographic region where the coverage area of the beamformed signal used to carry the map packets is correlated to the map.
[0190] In some examples, the communications manager 1220 may be configured to perform various operations (e.g., receiving, obtaining, monitoring, outputting, transmitting) using or otherwise in cooperation with the transceiver 1210, the one or more antennas 1215 (e.g., where applicable) , or any combination thereof. For example, the communications manager 1220 may be configured to receive or transmit messages or other signaling as described herein via the transceiver 1210. Although the communications manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1220 may be supported by or performed by the transceiver 1210, one or more of the at least one processor 1235, one or more of the at least one memory 1225, the code 1230, or any combination thereof (for example, by a processing system including at least a portion of the at least one processor 1235, the at least one memory 1225, the code 1230, or any combination thereof) . For example, the code 1230 may include instructions executable by one or more of the at least one processor 1235 to cause the device 1205 to perform various aspects of beamforming for wireless transmission of geographic information as described herein, or the at least one processor 1235 and the at least one memory 1225 may be otherwise configured to, individually or collectively, perform or support such operations.
[0191] FIG. 13 shows a flowchart illustrating a method 1300 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE or its components as described herein. For example, the operations of the method 1300 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0192] At 1305, the method may include receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The operations of 1305 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed by a map manager 725 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1305 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0193] At 1310, the method may include receiving one or more data signals while operating in the geographic region of the map. The operations of 1310 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed by a data manager 730 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1310 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0194] FIG. 14 shows a flowchart illustrating a method 1400 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE or its components as described herein. For example, the operations of the method 1400 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0195] At 1405, the method may include receiving a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions. The operations of 1405 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed by a weighting table manager 735 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1405 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0196] At 1410, the method may include receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, where the beamformed signal indicating the map for the geographic region is received in accordance with the beamforming weights that are included in the beamforming weighting table, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The operations of 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by a map manager 725 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1410 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0197] At 1415, the method may include receiving one or more data signals while operating in the geographic region of the map. The operations of 1415 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed by a data manager 730 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1415 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0198] FIG. 15 shows a flowchart illustrating a method 1500 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE or its components as described herein. For example, the operations of the method 1500 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally, or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.
[0199] At 1505, the method may include transmitting a request for a map corresponding to a geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold. The operations of 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a request manager 740 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1505 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0200] At 1510, the method may include receiving, in accordance with the request, a beamformed signal indicating the map for the geographic region, where the geographic region is correlated at least in part with a coverage area of the beamformed signal, where one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and where a header portion of a packet carrying the map identifies the geographic region. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a map manager 725 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1510 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0201] At 1515, the method may include receiving one or more data signals while operating in the geographic region of the map. The operations of 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a data manager 730 as described with reference to FIG. 7. Additionally, or alternatively, means for performing 1515 may, but not necessarily, include, for example, antenna 825, transceiver 815, communications manager 820, memory 830 (including code 835) , processor 840 and / or bus 845.
[0202] FIG. 16 shows a flowchart illustrating a method 1600 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1600 may be performed by a network entity as described with reference to FIGs. 1 through 4 and 9 through 12. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0203] At 1605, the method may include obtaining information identifying a map for a geographic region, where the information further identifies the geographic region. The operations of 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a map manager 1125 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1605 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0204] At 1610, the method may include selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The operations of 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by a transmission parameter manager 1130 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1610 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0205] At 1615, the method may include outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal. The operations of 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by a beam manager 1135 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1615 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0206] FIG. 17 shows a flowchart illustrating a method 1700 that supports beamforming for wireless transmission of geographic information in accordance with one or more aspects of the present disclosure. The operations of the method 1700 may be implemented by a network entity or its components as described herein. For example, the operations of the method 1700 may be performed by a network entity as described with reference to FIGs. 1 through 4 and 9 through 12. In some examples, a network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally, or alternatively, the network entity may perform aspects of the described functions using special-purpose hardware.
[0207] At 1705, the method may include receiving, from a network server, a packet that includes a map for a geographic region, where information further identifying the geographic region is obtained from a header portion of the packet that includes the map. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a server manager 1140 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1705 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0208] At 1710, the method may include obtaining information identifying the map for the geographic region. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a map manager 1125 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1710 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0209] At 1715, the method may include selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region. The operations of 1715 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a transmission parameter manager 1130 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1715 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0210] At 1720, the method may include outputting a beamformed signal indicating the map for the geographic region, where the beamformed signal is correlated at least in part with a coverage area of the beamformed signal. The operations of 1720 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1720 may be performed by a beam manager 1135 as described with reference to FIG. 11. Additionally, or alternatively, means for performing 1720 may, but not necessarily, include, for example, antenna 1215, transceiver 1210, communications manager 1220, memory 1225 (including code 1230) , processor 1235 and / or bus 1240.
[0211] The following provides an overview of aspects of the present disclosure:
[0212] Aspect 1: A method for wireless communications at a UE, comprising: receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, wherein one or more transmission parameters of the beamformed signal are in accordance with CSI associated with the geographic region, and wherein a header portion of a packet carrying the map identifies the geographic region; and receiving one or more data signals while operating in the geographic region of the map.
[0213] Aspect 2: The method of aspect 1, further comprising: receiving a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, wherein the beamformed signal indicating the map for the geographic region is received in accordance with t one or more beamforming weights that are included in the beamforming weighting table.
[0214] Aspect 3: The method of aspect 2, wherein receiving at least the portion of the beamforming weighting table comprises receiving a complete beamforming weighting table corresponding to a set of coverage areas of a transmitting device for the beamformed signal or receiving a portion of the beamforming weighting table, the portion corresponding to the coverage area within which the UE receives the beamformed signal indicating the map.
[0215] Aspect 4: The method of any of aspects 2 through 3, further comprising: transmitting a request for a beamforming weight associated with the coverage area within which the UE receives the beamformed signal indicating the map, wherein at least the portion of the beamforming weighting table is received in accordance with the request.
[0216] Aspect 5: The method of any of aspects 2 through 4, wherein the beamforming weighting table comprises one or more region identifiers corresponding to the one or more geographic regions.
[0217] Aspect 6: The method of any of aspects 1 through 5, further comprising: transmitting a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, wherein the indication of the map is received in accordance with the request.
[0218] Aspect 7: The method of any of aspects 1 through 6, wherein the map is received in accordance with a periodic schedule.
[0219] Aspect 8: The method of any of aspects 1 through 7, further comprising: receiving an indication of a shared resource allocated for transmission of a NACK indication associated with the map for the geographic region, wherein the shared resource is for multiple UEs located within the geographic region.
[0220] Aspect 9: The method of aspect 8, further comprising: identifying a region identifier associated with the geographic region of the map, wherein the set of shared resources are identified in accordance with the region identifier.
[0221] Aspect 10: The method of any of aspects 8 through 9, wherein the NACK indication comprises one or more bits identifying a redundancy version associated with a packet that comprises the map.
[0222] Aspect 11: A method for wireless communications at a network entity, comprising: obtaining information identifying a map for a geographic region, wherein the information further identifies the geographic region; selecting one or more transmission parameters of a beamformed signal in accordance with CSI associated with the geographic region; and outputting a beamformed signal indicating the map for the geographic region, wherein the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.
[0223] Aspect 12: The method of aspect 11, further comprising: receiving a packet that comprises the map from a network server, wherein the information further identifying the geographic region is obtained from a header portion of the packet that comprises the map.
[0224] Aspect 13: The method of any of aspects 11 through 12, further comprising: receiving, by the network entity, a control message that indicates the information further identifying the geographic region, wherein the control message is separate from a packet that comprises the map.
[0225] Aspect 14: The method of any of aspects 11 through 13, further comprising: outputting a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, wherein the beamformed signal is output in accordance with one or more beamforming weights that are included in at least the portion of the beamforming weighting table.
[0226] Aspect 15: The method of any of aspects 11 through 14, further comprising: obtaining, from a UE, a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, wherein the indication of the map is output in accordance with the request.
[0227] Aspect 16: The method of any of aspects 11 through 15, wherein the indication of the map is output to each geographic region with a set of geographic regions in accordance with a periodic schedule, and the one or more transmission parameters for each geographic region in the set of geographic regions is in accordance with corresponding CSI for the geographic region.
[0228] Aspect 17: A UE for wireless communications, comprising one or more memories storing processor-executable code, a transceiver, and one or more processors coupled with the one or more memories and the transceiver, the one or more processors individually or collectively operable to execute the code to cause the UE to perform a method of any of aspects 1 through 10.
[0229] Aspect 18: A UE for wireless communications, comprising at least one means for performing a method of any of aspects 1 through 10.
[0230] Aspect 19: A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to perform a method of any of aspects 1 through 10.
[0231] Aspect 20: A network entity for wireless communications, comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to perform a method of any of aspects 11 through 16.
[0232] Aspect 21: A network entity for wireless communications, comprising at least one means for performing a method of any of aspects 11 through 16.
[0233] Aspect 22: A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to perform a method of any of aspects 11 through 16.
[0234] It should be noted that the methods described herein describe possible implementations. The operations and the steps may be rearranged or otherwise modified and other implementations are possible. Further, aspects from two or more of the methods may be combined.
[0235] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
[0236] 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.
[0237] The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed using a general-purpose processor, a DSP, an ASIC, a CPU, a graphics processing unit (GPU) , a neural processing unit (NPU) , 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) . Any functions or operations described herein as being capable of being performed by a processor may be performed by multiple processors that, individually or collectively, are capable of performing the described functions or operations.
[0238] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as or transmitted using one or more instructions or code of 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.
[0239] 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 location 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, and not limitation, 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. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc. Disks may reproduce data magnetically, and discs may reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media. Any functions or operations described herein as being capable of being performed by a memory may be performed by multiple memories that, individually or collectively, are capable of performing the described functions or operations.
[0240] 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” ) 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. ”
[0241] As used herein, including in the claims, the article “a” before a noun is open-ended and understood to refer to “at least one” of those nouns or “one or more” of those nouns. Thus, the terms “a, ” “at least one, ” “one or more, ” and “at least one of one or more” may be interchangeable. For example, if a claim recites “a component” that performs one or more functions, each of the individual functions may be performed by a single component or by any combination of multiple components. Thus, the term “a component” having characteristics or performing functions may refer to “at least one of one or more components” having a particular characteristic or performing a particular function. Subsequent reference to a component introduced with the article “a” using the terms “the” or “said” may refer to any or all of the one or more components. For example, a component introduced with the article “a” may be understood to mean “one or more components, ” and referring to “the component” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ” Similarly, subsequent reference to a component introduced as “one or more components” using the terms “the” or “said” may refer to any or all of the one or more components. For example, referring to “the one or more components” subsequently in the claims may be understood to be equivalent to referring to “at least one of the one or more components. ”
[0242] The term “determine” or “determining” encompasses a variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database, or another data structure) , ascertaining, and the like. Also, “determining” can include receiving (e.g., receiving information) , accessing (e.g., accessing data stored in memory) , and the like. Also, “determining” can include resolving, obtaining, selecting, choosing, establishing, and other such similar actions.
[0243] In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label or other subsequent reference label.
[0244] The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some figures, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
[0245] 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:one or more memories storing processor-executable code;a transceiver; andone or more processors coupled with the one or more memories and the transceiver, the one or more processors individually or collectively operable to execute the code to cause the UE to:receive, via the transceiver, a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, wherein one or more transmission parameters of the beamformed signal are in accordance with channel state information associated with the geographic region, and wherein a header portion of a packet carrying the map identifies the geographic region; andreceive, via the transceiver, one or more data signals while operating in the geographic region of the map.2.The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:receive, via the transceiver, a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, wherein the one or more processors are individually or collectively operable to execute the code to cause the UE to receive the beamformed signal indicating the map for the geographic region in accordance with the beamforming weights that are included in the beamforming weighting table.3.The UE of claim 2, wherein, to receive at least the portion of the beamforming weighting table, the one or more processors are individually or collectively operable to execute the code to cause the UE to receive a complete beamforming weighting table corresponding to a set of coverage areas of a transmitting device for the beamformed signal or receive a portion of the beamforming weighting table, the portion corresponding to the coverage area within which the UE receives the beamformed signal indicating the map.4.The UE of claim 2, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit, via the transceiver, a request for a beamforming weight associated with the coverage area within which the UE receives the beamformed signal indicating the map, wherein the one or more processors are individually or collectively operable to execute the code to cause the UE to receive at least the portion of the beamforming weighting table in accordance with the request.5.The UE of claim 2, wherein the beamforming weighting table comprises one or more region identifiers corresponding to the one or more geographic regions.6.The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:transmit, via the transceiver, a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, wherein the one or more processors are individually or collectively operable to execute the code to cause the UE to receive the beamformed signal indicating the map in accordance with the request.7.The UE of claim 1, wherein the one or more processors are individually or collectively operable to execute the code to cause the UE to receive the map in accordance with a periodic schedule.8.The UE of claim 1, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:receive, via the transceiver, an indication of a shared resource allocated for transmission of a negative-acknowledgement (NACK) indication associated with the map for the geographic region, wherein the shared resource is for multiple UEs located within the geographic region.9.The UE of claim 8, wherein the one or more processors are individually or collectively further operable to execute the code to cause the UE to:identify a region identifier associated with the geographic region of the map; andidentify the shared resource in accordance with the region identifier.10.The UE of claim 8, wherein the NACK indication comprises one or more bits identifying a redundancy version associated with a packet that comprises the map.11.A network entity, comprising:one or more memories storing processor-executable code; andone or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the network entity to:obtain information identifying a map for a geographic region, wherein the information further identifies the geographic region;select one or more transmission parameters of a beamformed signal in accordance with channel state information associated with the geographic region; andoutput a beamformed signal indicating the map for the geographic region, wherein the beamformed signal is correlated at least in part with a coverage area of the beamformed signal.12.The network entity of claim 11, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:receive a packet that comprises the map from a network server, wherein the one or more processors are individually or collectively operable to execute the code to cause the network entity to obtain the information further identifying the geographic region from a header portion of the packet that comprises the map.13.The network entity of claim 11, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:receive, by the network entity, a control message that indicates the information further identifying the geographic region, wherein the control message is separate from a packet that comprises the map.14.The network entity of claim 11, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:output a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, wherein the one or more processors are individually or collectively operable to execute the code to cause the network entity to output the beamformed signal in accordance with one or more beamforming weights that are included in at least the portion of the beamforming weighting table.15.The network entity of claim 11, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:obtain, from a user equipment (UE) , a request for the map corresponding to the geographic region in accordance with the UE being located with the geographic region or in accordance with the UE moving to the geographic region within a time threshold, wherein the one or more processors are individually or collectively operable to execute the code to cause the network entity to output the beamformed signal indicating the map in accordance with the request.16.The network entity of claim 11, wherein the one or more processors are individually or collectively further operable to execute the code to cause the network entity to:output an indication of the map to each geographic region within a set of geographic regions in accordance with a periodic schedule, andone or more respective transmission parameters for each geographic region in the set of geographic regions are in accordance with corresponding channel state information for the geographic region.17.A method for wireless communications at a user equipment (UE) , comprising:receiving a beamformed signal indicating a map for a geographic region that is correlated at least in part with a coverage area of the beamformed signal, wherein one or more transmission parameters of the beamformed signal are in accordance with channel state information associated with the geographic region, and wherein a header portion of a packet carrying the map identifies the geographic region; andreceiving one or more data signals while operating in the geographic region of the map.18.The method of claim 17, further comprising:receiving a message identifying at least a portion of a beamforming weighting table that includes beamforming weights for one or more geographic regions, wherein the beamformed signal indicating the map for the geographic region is received in accordance with the beamforming weights that are included in the beamforming weighting table.19.The method of claim 18, wherein receiving at least the portion of the beamforming weighting table comprises receiving a complete beamforming weighting table corresponding to a set of coverage areas of a transmitting device for the beamformed signal or receiving a portion of the beamforming weighting table, the portion corresponding to the coverage area within which the UE receives the beamformed signal indicating the map.20.The method of claim 18, further comprising:transmitting a request for a beamforming weight associated with the coverage area within which the UE receives the beamformed signal indicating the map, wherein at least the portion of the beamforming weighting table is received in accordance with the request.
Citation Information
Patent Citations
Application-controlled geo-beamforming
CN107111957A
Antenna system and method of operating an antenna system
CN113676232A
Network node, user equipment and method for broadcasting beamformed signals in a wireless network
WO2020076202A1