Beamforming technology for multiple component carriers in wireless communications
By sharing analog beamformers between wireless communication nodes, the problems of poor communication quality and reliability of multi-component carriers are solved, and more efficient beamforming and signal transmission are achieved.
Patent Information
- Application Number
- CN202080078452.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-11-06
- Filing Date
- 2020-11-09
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2040-11-09
AI Technical Summary
In wireless communications, existing technologies have difficulty effectively utilizing analog beamformers to improve the communication quality and reliability of multiple component carriers. In particular, in 5G communication systems, beamforming indication and configuration between nodes are inefficient.
By indicating and sharing the same analog receiver or transmitter beamformer among nodes, the nodes can uniformly beamform multiple component carriers based on these instructions, achieving collaborative optimization of antenna resources.
The quality and reliability of multi-component carrier communications are improved, and the communication efficiency and signal transmission effect between nodes are enhanced.
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Figure CN114731186B_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to Provisional Patent Application No. 62 / 937,176, filed on November 18, 2019, entitled “TECHNIQUES FOR BEAMFORMINGFOR MULTIPLE COMPONENT CARRIERS IN WIRELESS COMMUNICATIONS,” and U.S. Patent Application No. 17 / 091,453, filed on November 6, 2020, entitled “TECHNIQUES FOR BEAMFORMING FORMULTIPLE COMPONENT CARRIERS IN WIRELESS COMMUNICATIONS,” both of which are assigned to the assignee of this patent application and are expressly incorporated herein by reference for all purposes. Background Art
[0003] Aspects of the present disclosure relate generally to wireless communication systems, and more particularly to beamforming for multiple component carriers (CCs).
[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), and single-carrier frequency division multiple access (SC-FDMA) systems.
[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global scale. For example, fifth generation (5G) wireless communication technology, which may be referred to as 5G New Radio (5G NR), is envisioned to expand and support a variety of usage scenarios and applications relative to current mobile network generations. In one aspect, 5G communication technologies may include: enhanced mobile broadband, which addresses the use case of people-centric access to multimedia content, services, and data; ultra-reliable low latency communications (URLLC), which has specific specifications for latency and reliability; and massive machine type communications, which may allow for a large number of connected devices and the transmission of relatively small amounts of non-delay sensitive information. However, as the demand for mobile broadband access continues to increase, further improvements to 5G communication technologies and other technologies may be needed.
[0006] In some wireless communication technologies, such as 5G, nodes can use wireless communication technologies to communicate simultaneously or otherwise on multiple CCs. Furthermore, in 5G, nodes can beamform antenna resources to achieve spatial directionality when transmitting or receiving signals. In this regard, a receiving node can beamform antenna resources toward a transmitting node to receive signals from the transmitting node. Furthermore, a transmitting node can beamform antenna resources toward a receiving node to transmit signals to the receiving node. Summary of the Invention
[0007] The following is a simplified summary of one or more aspects in order to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all contemplated aspects and is neither intended to identify key or critical elements of all aspects nor to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
[0008] According to one example, a wireless communication method is provided. The method includes: sending, by a first node to a second node, a first indication of at least a first set of component carriers (CCs) that share an analog receiver beamformer at the first node; receiving, by the first node from the second node, a second indication of at least a second set of CCs that share the analog receiver beamformer at the second node; and beamforming, by the first node and based on the second indication, a signal transmitted to the second node on each CC in the second set of CCs using the same analog transmitter beamformer.
[0009] In another example, an apparatus for wireless communication is provided, the apparatus comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to: send a first indication of at least a first set of component carriers (CCs) that share an analog receiver beamformer at a second apparatus to a second apparatus; send a second indication of at least a second set of CCs that share an analog transmitter beamformer at the second apparatus to the second apparatus; based on the first indication, beamform antenna resources used for receiving signals on each CC in the first set of CCs using the same analog receiver beamformer; and based on the second indication, beamform antenna resources used for transmitting signals on each CC in the second set of CCs to the second apparatus using the same analog transmitter beamformer.
[0010] In another example, an apparatus for wireless communication is provided, the apparatus comprising: means for sending a first indication of at least a first group of CCs sharing an analog receiver beamformer at a second apparatus to a second apparatus; means for sending a second indication of at least a second group of CCs sharing an analog transmitter beamformer at the apparatus to the second apparatus; means for beamforming antenna resources used for receiving signals from the second apparatus on each CC in the first group of CCs using the same analog receiver beamformer based on the first indication; and means for beamforming antenna resources used for transmitting signals to the second apparatus on each CC in the second group of CCs using the same analog transmitter beamformer based on the second indication.
[0011] In another example, a computer-readable medium including code executable by one or more processors for wireless communication is provided. The code includes code for performing the following operations: sending, by a first node to a second node, a first indication of at least a first set of CCs that share an analog receiver beamformer at the first node; sending, by the first node to the second node, a second indication of at least a second set of CCs that share an analog transmitter beamformer at the first node; beamforming, by the first node and based on the first indication, antenna resources used for receiving signals from the second node on each CC in the first set of CCs using the same analog receiver beamformer; and beamforming, by the first node and based on the second indication, antenna resources used for transmitting signals to the second node on each CC in the second set of CCs using the same analog transmitter beamformer.
[0012] To accomplish the foregoing and related ends, one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of but a few of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The disclosed aspects will hereinafter be described with reference to the accompanying drawings, which are provided for the purpose of illustrating and not limiting the disclosed aspects, wherein like reference numerals represent like elements, and wherein:
[0014] Figure 1 An example of a wireless communication system according to various aspects of the present disclosure is shown;
[0015] Figure 2 is a block diagram illustrating an example of a UE according to various aspects of the present disclosure;
[0016] Figure 3 is a block diagram illustrating an example of a base station according to various aspects of the present disclosure;
[0017] Figure 4 is a flow chart illustrating an example of a method for indicating and / or determining a group of component carriers sharing the same analog beamformer according to various aspects of the present disclosure;
[0018] Figure 5 is a flow chart illustrating another example of a method for indicating and / or determining a group of component carriers sharing the same analog beamformer according to various aspects of the present disclosure;
[0019] Figure 6 is a flow chart illustrating an example of a method for separately indicating component carrier groups sharing the same analog receiver beamformer or analog transmitter beamformer according to various aspects of the present disclosure;
[0020] Figure 7 is a flow chart illustrating an example of a method for separately determining groups of component carriers sharing the same analog receiver beamformer or analog transmitter beamformer according to various aspects of the present disclosure; and
[0021] Figure 8 is a block diagram illustrating an example of a MIMO communication system including a base station and UEs according to various aspects of the present disclosure. DETAILED DESCRIPTION
[0022] Now, various aspects will be described with reference to the accompanying drawings. In the following description, for the purpose of explanation, various specific details are set forth in order to provide a thorough understanding of one or more aspects. However, it will be apparent that these aspects can be practiced without these specific details.
[0023] The described features generally involve directing component carriers (CCs) having the same analog beamformer by one or more nodes in wireless communication with each other. The analog beamformer may include beamforming of antenna resources performed by a node to achieve a spatial direction for receiving signals from or transmitting signals to other nodes. The analog beamformer may therefore be one of an analog receiver beamformer or an analog transmitter beamformer, where analog receiver beamformer refers to beamforming of antenna resources to generate a directional beam for receiving wireless communications, or an analog transmitter beamformer refers to beamforming of antenna resources to generate a directional beam for transmitting wireless communications. Beamforming antenna resources may include applying power, controlling phase, controlling amplitude, etc. to multiple antennas in an antenna array to achieve a desired spatial direction. Beamforming may be performed based on a beamforming matrix, which may specify values for applying power, controlling phase, controlling amplitude, etc. to multiple antennas.
[0024] For example, a first node may indicate to a second node multiple CCs at the first node that have the same analog receiver beamformer. In this example, the second node may, based on the indication from the first node, use the same analog transmitter beamformer (which may correspond to the analog receiver beamformer) to beamform antenna resources for transmission on the multiple CCs. Similarly, the first node may also receive from the second node an indication of multiple CCs at the second node that have the same analog receiver beamformer (which may be the same or a different set of CCs as indicated by the first node). In this example, the first node may, based on the indication from the second node, use the same analog transmitter beamformer (which may correspond to the analog receiver beamformer indicated by the second node) to beamform antenna resources for transmission on the multiple CCs. In another example, the first node may indicate to the second node multiple CCs at the first node that have the same analog transmitter beamformer. In this example, the second node may also beamform antenna resources based on the indication to receive signals from the first node. Furthermore, in one example, the first node can be a user equipment (UE) and the second node can be an access point, or vice versa, as further described herein.
[0025] In one example, an access point may configure a UE with a list of CCs that are associated with each other because they have the same transmit configuration indicator (TCI) state for receiving downlink communications. The TCI state may indicate or otherwise relate to parameters for performing beamforming, so that the UE may receive the list of CCs and determine the beamforming to be performed for the list of CCs based on the indicated TCI state. The UE receiving this configuration from the access point may apply the same set of TCI state identifiers to the CCs in the list (e.g., and / or all bandwidth parts (BWPs) for each CC in the list). Similarly, in one example, the access point may configure a UE with a list of CCs that are associated with each other because they have the same spatial relationship on the uplink. The UE receiving this configuration from the access point may apply the same spatial relationship to the antenna resources used to transmit uplink communications on the CCs in the list (e.g., and / or all BWPs for each CC in the list).
[0026] In the examples described herein, an access point may advertise or otherwise configure to a UE each set of CCs that share the same analog receiver beamformer (e.g., the same spatial relationship) at the access point so that the UE may attempt to use the same analog transmitter beamformer for sending uplink communications to the access point on each CC in the set of CCs. In another example, the UE may indicate to the access point each set of CCs that share the same analog receiver beamformer (e.g., the same quasi-co-location (QCL) assumption) at the UE. In one example, based on the indication, the access point may attempt to use the same analog transmitter beamformer for sending downlink communications to the UE on each CC in the set of CCs. In another example, the UE may separately indicate to the access point each set of CCs that share the same analog transmitter beamformer at the UE. In this example, based on the indication, the access point may attempt to use the same analog receiver beamformer for receiving uplink communications from the UE on each CC in the set of CCs. In any case, indicating a list of CCs by both nodes may allow each node to beamform antenna resources used to communicate with each other on the CCs, which may improve the quality and / or audibility of communications on the CCs.
[0027] The following will refer to Figures 1 to 8 The described features are presented in more detail.
[0028] As used in this application, the terms "component", "module", "system" and the like are intended to include computer-related entities, such as, but not limited to, hardware, software, a combination of hardware and software, or software in execution. For example, a component can be, but not limited to, a process, a processor, an object, an executable file, an execution thread, a program and / or a computer running on a processor. As an example, an application running on a computing device and a computing device can all serve as components. One or more components can reside within a process and / or execution thread and a component can be localized on a computer and / or distributed between two or more computers. In addition, these components can be executed by various computer-readable media having various data structures stored thereon. Components can communicate through local and / or remote processes, such as according to signals having one or more data packets (such as data from a component that interacts with another component in a local system, a distributed system, and / or interacts with other systems via the signal on a network such as the Internet). Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
[0029] The techniques described herein can be used in various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are generally used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like. CDMA2000 covers IS-2000, IS-95, and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, and the like. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), and the like. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE802.20, Flash-OFDM TM etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and Advanced LTE (LTE-A) are new versions of UMTS that use EUTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above and other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio spectrum bands. However, the following description describes an LTE / LTE-A system for example purposes, and LTE terminology is used in most of the description below, although the techniques are applicable beyond LTE / LTE-A applications (e.g., for fifth generation (5G) new radio (NR) networks or other next generation communication systems).
[0030] The following description provides examples and is not intended to limit the scope, applicability, or examples set forth in the claims. The functions and arrangements of the elements discussed may be modified without departing from the scope of this disclosure. Various examples may omit, substitute, or add various processes or components as appropriate. For example, the methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined in other examples.
[0031] Various aspects or features will be presented in terms of systems that may include several devices, components, modules, etc. It will be understood and appreciated that the various systems may include additional devices, components, modules, etc. and / or may not include all of the devices, components, modules, etc. discussed in connection with the figures. Combinations of these methods may also be used.
[0032] Figure 1 1 is a diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) may include a base station 102, a UE 104, an evolved packet core (EPC) 160, and / or a 5G core (5GC) 190. The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell may include a base station. A small cell may include a femto cell, a pico cell, and a micro cell. In one example, the base station 102 may also include a gNB 180, as further described herein. In one example, some nodes of the wireless communication system may have a modem 240 and a communication component 242 for transmitting and / or receiving an indication of a CC group that shares the same analog beamformer and / or for correspondingly beamforming antenna resources used to transmit and / or receive signals on CCs in the CC group. While UE 104 and base station 102 are shown with a modem 240 and a communication component 242, this is an illustrative example, and substantially any node or type of node may include a modem 240 and a communication component 242 for providing the corresponding functionality described herein.
[0033] Base stations 102 configured for 4G LTE (which may be collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interact with EPC 160 via a backhaul link 132 (e.g., using an S1 interface). Base stations 102 configured for 5G NR (which may be collectively referred to as Next Generation RAN (NG-RAN)) may interact with 5GC 190 via a backhaul link 184. Base stations 102 may perform one or more of the following functions, among other things: transmission of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and device tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. Base stations 102 may communicate with each other directly or indirectly (e.g., through EPC 160 or 5GC 190) over backhaul links 134 (e.g., using an X2 interface). Backhaul links 134 may be wired or wireless.
[0034] Base stations 102 can wirelessly communicate with one or more UEs 104. Each of base stations 102 can provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102′ can have a coverage area 110′ that overlaps with the coverage area 110 of one or more macro base stations 102. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a Home evolved Node B (eNB) (HeNB), which can provide service to a restricted group, which may be referred to as a Closed Subscriber Group (CSG). The communication link 120 between base station 102 and UE 104 may include uplink (UL) (also known as reverse link) transmissions from UE 104 to base station 102 and / or downlink (DL) (also known as forward link) transmissions from base station 102 to UE 104. The communication link 120 may utilize multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be through one or more carriers. The base station 102 / UE 104 may use spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.) bandwidth on each carrier allocated in a carrier aggregation of up to a total of Yx MHz (e.g., for x component carriers) for transmission in the DL and / or UL directions. The carriers may be adjacent or non-adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL compared to UL). The component carriers may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).
[0035] In another example, some UEs 104 can communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 can use the DL / UL WWAN spectrum. The D2D communication link 158 can use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication can be performed through various wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.
[0036] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.
[0037] Small cell 102' can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell 102' can employ NR and use the same 5 GHz unlicensed spectrum used by Wi-Fi AP 150. Small cell 102' employing NR in unlicensed spectrum can improve coverage and / or increase capacity of the access network.
[0038] Base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), can include an eNB, gNodeB (gNB), or other type of base station. Some base stations, such as gNB 180, can communicate with UE 104 at millimeter wave (mmW) frequencies and / or near-mmW frequencies in the traditional sub-6 GHz spectrum. When gNB 180 operates at mmW or near-mmW frequencies, gNB 180 can be referred to as a mmW base station. Extremely high frequency (EHF) is a portion of the RF band in the electromagnetic spectrum. EHF ranges from 30 GHz to 300 GHz, with wavelengths between 1 mm and 10 mm. Radio waves in this band can be referred to as millimeter waves. Near-mmW can extend down to 3 GHz frequencies with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz and is also called centimeter waves. Communications using the mmW / near-mmW radio frequency bands have extremely high path loss and short range. The mmW base station 180 can utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range. The base station 102 referred to herein can include a gNB 180.
[0039] EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172. MME 162 may communicate with a Home Subscriber Server (HSS) 174. MME 162 is a control node that handles signaling between UE 104 and EPC 160. Generally, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through Serving Gateway 166, which itself is connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation and other functions. PDN Gateway 172 and BM-SC 170 are connected to IP Services 176. IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), PS streaming services, and / or other IP services. BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve as the entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS delivery. The MBMS gateway 168 may be used to distribute MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and collecting eMBMS-related charging information.
[0040] 5GC 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may communicate with a unified data management (UDM) 196. AMF 192 may be a control node that handles signaling between UE 104 and 5GC 190. Typically, AMF 192 may provide QoS flow and session management. User Internet Protocol (IP) packets (e.g., from one or more UEs 104) may be transported through UPF 195. UPF 195 may provide UE IP address allocation and other functions for one or more UEs. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), PS streaming services, and / or other IP services.
[0041] A base station may also be referred to as a gNB, a Node B, an evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit reception point (TRP), or some other suitable terminology. Base station 102 provides an access point to EPC 160 or 5GC 190 for UE 104. Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, positioning systems (e.g., satellite, terrestrial), multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, robots, drones, industrial / manufacturing equipment, wearable devices (e.g., smart watches, smart clothing, smart glasses, virtual reality glasses, smart bracelets, smart jewelry (e.g., smart rings, smart wristbands)), vehicle / in-vehicle equipment, meters (e.g., parking meters, electricity meters, gas meters, water meters, flow meters), gas pumps, large or small kitchen appliances, medical / healthcare equipment, implants, sensors / actuators, displays, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., meters, pumps, monitors, cameras, industrial / manufacturing equipment, appliances, vehicles, robots, drones, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also known as Category (CAT)-M, Cat M1) UEs, NB-IoT (also known as CAT NB1) UEs, and other types of UEs. In the present disclosure, eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (enhanced further eMTC), mMTC (massive MTC), etc., while NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc. UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.
[0042] In one example, the communication component 242 of the UE 104 can indicate to the base station 102 a group of CCs that share the same analog beamformer (e.g., the same analog receiver beamformer or the same transmitter beamformer) at the UE 104. The communication component 242 of the base station 102 can accordingly apply the corresponding analog beamformer (e.g., the corresponding analog transmitter beamformer or the corresponding analog receiver beamformer) in communicating with the UE 104. Similarly, the communication component 242 of the base station 102 can indicate to the UE 104 a group of CCs that share the same analog beamformer (e.g., the same analog receiver beamformer or the same transmitter beamformer) at the base station 102. The communication component 242 of the UE 104 can accordingly apply the corresponding analog beamformer (e.g., the corresponding analog transmitter beamformer or the corresponding analog receiver beamformer) in communicating with the base station 102.
[0043] Now go to Figures 2 to 8 , various aspects are described with reference to one or more components and one or more methods that can perform the actions or operations described herein, where dashed aspects may be optional. Although the following is performed in a specific order and / or by exemplary components Figures 4 to 7 The operations described in the foregoing are described, but it should be understood that the order of actions and the components performing the actions may vary depending on the implementation. In addition, it should be understood that the following actions, functions and / or components may be performed by a specially programmed processor, a processor executing specially programmed software or computer-readable media, or and / or any other combination of hardware components and / or software components capable of performing the actions or functions.
[0044] Reference Figure 2 , an example of an embodiment of the UE 104 may include various components, some of which have been described above and are further described herein, including components such as one or more processors 212 and memory 216 and a transceiver 202 in communication via one or more buses 244, which may operate in conjunction with a modem 240 and / or a communication component 242 for transmitting and / or receiving indications of CC groups that share the same analog beamformer and / or for correspondingly beamforming antenna resources used to transmit and / or receive signals on CCs in the CC group, as described herein.
[0045] In one aspect, the one or more processors 212 may include the modem 240 and / or may be part of the modem 240 using one or more modem processors. Thus, various functions associated with the communication component 242 may be included in the modem 240 and / or the processor 212 and, in one aspect, may be performed by a single processor, while in other aspects, different ones of the functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 212 may include any one or any combination of the following: a modem processor, a baseband processor, a digital signal processor, a transmit processor, a receiver processor, or a transceiver processor associated with the transceiver 202. In other aspects, some features of the one or more processors 212 and / or the modem 240 associated with the communication component 242 may be performed by the transceiver 202.
[0046] Furthermore, the memory 216 can be configured to store local versions of data and / or applications 275 used herein or the communication component 242 and / or one or more subcomponents thereof executed by the at least one processor 212. The memory 216 can include any type of computer-readable medium usable by a computer or the at least one processor 212, such as random access memory (RAM), read-only memory (ROM), tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, the memory 216 can be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the communication component 242 and / or one or more subcomponents thereof and / or data associated therewith, capable of executing the communication component 242 and / or one or more subcomponents thereof when the UE 104 is operating the at least one processor 212.
[0047] The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware and / or software executable by a processor for receiving data, the code including instructions and stored in memory (e.g., a computer-readable medium). The receiver 206 may be, for example, a radio frequency (RF) receiver. In one aspect, the receiver 206 may receive signals transmitted by at least one base station 102. In addition, the receiver 206 may process such received signals and may also obtain signal measurements such as, but not limited to, Ec / Io, signal-to-noise ratio (SNR), reference signal received power (RSRP), received signal strength indicator (RSSI), etc. The transmitter 208 may include hardware and / or software executable by a processor for transmitting data, the code including instructions and stored in memory (e.g., a computer-readable medium). Suitable examples of the transmitter 208 may include, but are not limited to, an RF transmitter.
[0048] Furthermore, in one aspect, the UE 104 may include an RF front end 288 that may communicate with the one or more antennas 265 and the transceiver 202 for receiving and transmitting radio transmissions, e.g., wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by the UE 104. The RF front end 288 may be connected to the one or more antennas 265 and may include one or more low noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.
[0049] In one aspect, the LNAs 290 can amplify the received signal at a desired output level. In one aspect, each LNA 290 can have specified minimum and maximum gain values. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular LNA 290 and its specified gain value based on the desired gain value for a particular application.
[0050] In addition, for example, the RF front end 288 can use one or more PAs 298 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 298 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a specific PA 298 and its specified gain value based on the desired gain value for a particular application.
[0051] Likewise, for example, the RF front end 288 can use one or more filters 296 to filter a received signal to obtain an input RF signal. Similarly, in one aspect, for example, a corresponding filter 296 can be used to filter the output from a corresponding PA 298 to produce an output signal for transmission. In one aspect, each filter 296 can be connected to a specific LNA 290 and / or PA 298. In one aspect, the RF front end 288 can use one or more switches 292 to select a transmit or receive path using a specific filter 296, LNA 290, and / or PA 298 based on a configuration specified by the transceiver 202 and / or the processor 212.
[0052] As such, the transceiver 202 can be configured to transmit and receive wireless signals via the RF front end 288 through the one or more antennas 265. In one aspect, the transceiver can be tuned to operate at a specified frequency so that the UE 104 can communicate with, for example, one or more base stations 102 or one or more cells associated with the one or more base stations 102. In one aspect, the modem 240 can configure the transceiver 202 to operate at a specified frequency and power level based on, for example, the UE configuration of the UE 104 and the communication protocol used by the modem 240.
[0053] In one aspect, the modem 240 can be a multi-band multi-mode modem that can process digital data and communicate with the transceiver 202 so that the digital data is sent and received using the transceiver 202. In one aspect, the modem 240 can be multi-band and configured to support multiple frequency bands for a specific communication protocol. In one aspect, the modem 240 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, the modem 240 can control one or more components of the UE 104 (e.g., the RF front end 288, the transceiver 202) based on a specified modem configuration to enable sending and / or receiving signals over the network. In one aspect, the modem configuration can be based on the mode of the modem and the frequency band in use. In another aspect, the modem configuration can be based on UE configuration information associated with the UE 104 provided by the network during cell selection and / or cell reselection.
[0054] In one aspect, communication component 242 may optionally include a beam determining component 252 for determining analog beamformers for a set of CCs (e.g., as received in an indication from another node or otherwise received), a beam indicating component 254 for indicating the analog beamformers for the set of CCs, and / or a beamforming component 256 for beamforming antenna resources based on the received or indicated analog beamformers, as described herein.
[0055] In one aspect, the processor 212 may correspond to Figure 8 Similarly, the memory 216 may correspond to one or more of the processors described in the UE. Figure 8 The memory described in the UE.
[0056] refer to Figure 3, an example of an implementation of a base station 102 (e.g., a base station 102 and / or gNB 180 as described above) may include various components, some of which have been described above, but including components such as one or more processors 312 and memory 316 and a transceiver 302 that communicate via one or more buses 344, which may operate in conjunction with a modem 340, a communication component 242 for sending and / or receiving indications of groups of CCs that share the same analog beamformer and / or for correspondingly beamforming antenna resources used to transmit and / or receive signals on CCs in the CC group, and / or an optional configuration component 342 for configuring a list of CCs (e.g., with the same QCL assumptions, spatial relationships, or otherwise), as described herein.
[0057] The transceiver 302, receiver 306, transmitter 308, one or more processors 312, memory 316, applications 375, bus 344, RF front end 388, LNA 390, switch 392, filter 396, PA 398, and one or more antennas 365 may be the same as or similar to the corresponding components of the UE 104 described above, but configured or otherwise programmed for base station operation rather than UE operation.
[0058] In one aspect, communication component 242 may optionally include a beam determining component 252 for determining analog beamformers for a set of CCs (e.g., as received in an indication from another node or otherwise received), a beam indicating component 254 for indicating the analog beamformers for the set of CCs, and / or a beamforming component 256 for beamforming antenna resources based on the received or indicated analog beamformers, as described above and further described herein.
[0059] In one aspect, processor(s) 312 may correspond to a processor in conjunction with Figure 8 Similarly, the memory 316 may correspond to one or more of the processors described in the base station in the embodiment of the present invention. Figure 8 The memory of the base station.
[0060] Figure 4 and Figure 5 Flowcharts are shown for indicating examples of methods 400 and 500 for analog beamformers used in wireless communications. In one example, a UE (e.g., UE 104) may use Figure 1 and Figure 2 One or more of the components described in the method 400 may be used to perform the functions described in the method 400, and / or a base station (e.g., base station 102) may use Figure 1 and Figure 3One or more of the components described in the method 500 may be used to perform the functions described in the method 500. In a non-limiting example, each of the UE 104 and the base station 102 communicating with each other (e.g., as Figure 4 and Figure 5 The first node and the second node in , and described below) can perform the functions described in methods 400 and 500, respectively, although methods 400 and 500 need not be performed in combination.
[0061] In methods 400 and 500, at block 402, a first indication of at least a first set of CCs sharing an analog receiver beamformer at the first node may be sent by a first node to a second node. In one aspect, beam directing component 254 (e.g., in combination with processor(s) 212 / 312, memory 216 / 316, transceiver 202 / 302, communication component 242, etc.) may be sent by the first node to the second node for at least a first set of CCs sharing an analog receiver beamformer at the first node. For example, beam directing component 254 may send the first indication including identification information of a first set of CCs grouped as having the same analog receiver beamformer. The analog receiver beamformer may correspond to a beamformer (e.g., a beamforming matrix or other indication of beamforming antenna resources at the first node) used by the first node when receiving communications from the second node via the first set of CCs. In one example, the first set of CCs may correspond to a configured list of CCs, as further described herein, or may be independent of the configured list of CCs or may include a subset of the configured list of CCs. In any case, sending an indication for the first set of CCs may allow the second node to similarly beamform antenna resources for transmitting to the first node on the first set of CCs using an analog transmitter beamformer corresponding to the indicated analog receiver beamformer (e.g., the same or otherwise opposite beamformer to achieve the same or opposite spatial direction for transmitting toward the first node).
[0062] In one example, the analog receiver beamformer (and / or analog transmitter beamformer) can be inferred based on a known analog beamformer for one CC in the first set of CCs.
[0063] In methods 400 and 500, at block 404, a second indication of at least a second set of CCs sharing an analog receiver beamformer at the second node may be received by the first node from the second node. In one aspect, beam determination component 252 (e.g., in combination with processor(s) 212 / 312, memory 216 / 316, transceiver 202 / 302, communication component 242, etc.) may receive, by the first node from the second node, a second indication of at least a second set of CCs sharing an analog receiver beamformer at the second node. For example, beam determination component 252 may receive the second indication including identification information of a second set of CCs grouped as having the same analog receiver beamformer at the second node. The analog receiver beamformer may correspond to a beamformer (e.g., a beamforming matrix or other indication of beamforming antenna resources at the second node) used by the second node when receiving communications from the first node via the second set of CCs. In one example, the second set of CCs may correspond to a configured list of CCs, as further described herein, or may be independent of the configured list of CCs or may include a subset of the configured list of CCs. In any case, receiving an indication for a second set of CCs may allow the first node to beamform antenna resources for transmitting to the second node on the second set of CCs using an analog transmitter beamformer corresponding to the indicated analog receiver beamformer (e.g., the same or otherwise opposite beamformer to achieve the same or opposite spatial direction for transmitting toward the second node), as further described herein.
[0064] In one example, beam determination component 252 can infer an analog receiver beamformer (and / or an analog transmitter beamformer) based on a known analog beamformer for one CC in a first set of CCs. Furthermore, for example, the first set of CCs can be the same as or different from the second set of CCs. In one example, the first set of CCs can include a portion of the second set of CCs and / or vice versa, as further described herein.
[0065] In methods 400 and 500, at block 406, antenna resources used for transmitting signals to the second node on each CC in the second set of CCs can be beamformed by the first node based on the second indication using the same analog transmitter beamformer. In one aspect, beamforming component 256 (e.g., in combination with processor(s) 212 / 312, memory 216 / 316, transceiver 202 / 302, communication component 242, etc.) can be beamformed by the first node based on the second indication using the same analog transmitter beamformer on antenna resources used for transmitting signals to the second node on each CC in the second set of CCs. For example, beam determination component 252 can determine an analog transmitter beamformer corresponding to the analog receiver beamformer received in the indication of block 404, and beamforming component 256 can accordingly use the analog transmitter beamformer when transmitting communications over the second set of CCs.
[0066] In one specific example, for example, in method 400, the first node may be UE 104 and the second node may be base station 102 (e.g., a gNB). In this example, UE 104 may send a first indication of a first set of CCs that share an analog receiver beamformer to base station 102 and may receive a second indication of a second set of CCs that share an analog receiver beamformer from base station 102. Thus, for example, base station 102 may beamform antenna resources for downlink transmissions on the first set of CCs for UE 104 based on the analog transmitter beamformer corresponding to the first indicated analog receiver beamformer. Similarly, in this example, UE 104 may beamform antenna resources for uplink transmissions on the second set of CCs for base station 102 based on the analog transmitter beamformer corresponding to the second indicated analog receiver beamformer. As described, the first set of CCs and the second set of CCs may be the same or different sets of CCs. Additionally, as further described herein, base station 102 can configure UE 104 with one or more lists of CCs, and the first set of CCs and / or the second set of CCs can correspond to one of the lists of CCs or can be separate from the one or more lists of CCs.
[0067] For example, in the method 400 performed by the UE (e.g., as a first node), optionally at block 408, a configuration of a configuration list of CCs can be received by the first node, where the first group of CCs or the second group of CCs corresponds to the configuration list of CCs. In one aspect, the beam determination component 252 (e.g., in combination with the processor(s) 212, the memory 216, the transceiver 202, the communication component 242, etc.) can receive the configuration of the configuration list of CCs by the first node, where the first group of CCs or the second group of CCs corresponds to the configuration list of CCs.
[0068] Upon receiving the configuration at block 408, optionally at block 410, a configuration of a configuration list of CCs may be received by the first node (e.g., by UE 104 and from base station 102) as uplink CCs having the same spatial relationship. In one aspect, beam determination component 252 (e.g., in conjunction with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may receive a configuration list of CCs by the first node (e.g., UE 104) as uplink CCs having the same spatial relationship. For example, the configuration list of CCs may be received from base station 102 and may be indicated as having the same spatial relationship, as described above. In one example, the first set of CCs or the second set of CCs may correspond to one of the configuration lists in this example.
[0069] In addition, for example, upon receiving the configuration at block 408, optionally at block 412, a configuration of a configuration list of CCs as downlink CCs having the same QCL assumption can be received by the first node (e.g., by UE 104 and from base station 102). In one aspect, beam determination component 252 (e.g., in conjunction with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) can receive a configuration list of CCs as downlink CCs having the same QCL assumption by the first node (e.g., UE 104). For example, the configuration list of CCs can be received from base station 102 and can be indicated as having the same QCL assumption, as described above. In one example, the first set of CCs or the second set of CCs can correspond to one of the configuration lists in this example.
[0070] For example, the configured list(s) of CCs may include one or more lists of CCs indicated as having the same TCI state (e.g., for all BWPs per CC). For example, when a set of TCI state identifiers (IDs) for a physical downlink shared channel (PDSCH) is activated by a media access control (MAC) control element (CE) for at least a set of CCs / BWPs for the same frequency band, the same set of TCI state IDs may be applied to all BWPs in the indicated CCs, provided that a list of applicable CCs is indicated via radio resource control (RRC) signaling. To simultaneously activate TCI states across multiple CCs / BWPs, in one example, each UE may be configured with up to two lists of CCs by RRC, and the list to be applied may be determined by the CC indicated in the MAC CE. In one example, at least one list of CCs may correspond to one of the up to two lists indicated in this example as having the same TCI state identifier.
[0071] For example, the indicated CC groups (e.g., the first group and / or the second group) may include a configuration list of CCs or may be different. For example, where the first node is a UE, sending the first indication (e.g., at block 402) may include sending, in the first indication, an identifier of a configuration list of downlink CCs associated with the first set of CCs. Similarly, receiving the second indication (e.g., at block 404) may include receiving, from the access point, a second indication that may include an identifier of a configuration list of uplink CCs corresponding to the second set of CCs. Thus, in this example, an analog beamformer may be indicated for one or more of the configuration lists of CCs, and the node may accordingly identify the CCs to which the same analog beamformer is applied.
[0072] In another example, as further described herein, a configuration list(s) of CCs may be generated based on the identified first set of CCs (e.g., based on the first indication sent at block 402) and / or based on the identified second set of CCs (e.g., based on the second indication received at block 404). In one example, a configuration of the received configuration list of CCs having the same special relationship or QCL assumption may be identified in the configuration based on the first indication or the second indication.
[0073] In one example, the configuration of the configuration list of CCs can be based on the first indication sent at block 402 and / or the second indication received at block 404. For example, if the UE indicates that a group of CCs can share an analog receive beamformer, the base station 102 can configure the group of CCs to have the same analog beamformer (or spatial relationship or QCL assumption, etc.) and can send the configuration of the group of CCs to the UE 104.
[0074] In method 400, optionally at block 414, a configuration of combinations of CCs can be determined or received, separate from the list of configurations of CCs having the same spatial relationship or QCL assumption. In one aspect, beam determination component 252 (e.g., in conjunction with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) can determine or receive (e.g., from base station 102) a configuration of combinations of CCs separate from the list of configurations of CCs having the same spatial relationship or QCL assumption. The combinations of CCs separate from the list of configurations can include combinations of CCs that can be combined for various other purposes, which may or may not include the use of the same analog beamformer. Furthermore, the combinations of CCs can include CCs of the same or different frequency bands. Furthermore, for example, beam determination component 252 can determine the combinations of CCs from memory 216 (e.g., based on a standard for implementing UE 104 indicating the combinations of CCs) or can receive a configuration indicating the combinations of CCs (e.g., via RRC signaling from an access point).
[0075] In any case, for example, the indicated CC groups (e.g., the first group and / or the second group) may include combinations or subsets of CCs. For example, where the first node is a UE, sending the first indication (e.g., at block 402) may include sending, in the first indication, an identifier of the combination of CCs associated with the first set of CCs (as configured). Similarly, receiving the second indication (e.g., at block 404) may include receiving, from the access point, a second indication that may include an identifier of the combination of CCs corresponding to the second set of CCs (as configured). Thus, in this example, analog beamformers may be indicated for the configured combinations of CCs, and the node may accordingly identify, based on the identifier, the CCs to which the same analog beamformer is applied.
[0076] In another example, the indicated group of CCs may be a subset of the configured combination of CCs. For example, where the first node is a UE, sending the first indication (e.g., at block 402) may include sending in the first indication an identifier of a subset of the combination of CCs associated with the first set of CCs (as configured). Similarly, receiving the second indication (e.g., at block 404) may include receiving from the access point a second indication that may include an identifier of a subset of the combination of CCs corresponding to the second set of CCs (as configured). Thus, in this example, analog beamformers may be indicated for a subset of the configured combination of CCs, and the node may accordingly identify CCs to which the same analog beamformer is applied based on the identifier. For example, the identifier may identify an index of a CC in the combination associated with the first set of CCs or the second set of CCs.
[0077] For example, in the method 500 performed by a base station (e.g., as a first node), optionally at block 508, a configuration of a configuration list of CCs may be sent by the first node, where the first set of CCs or the second set of CCs corresponds to the configuration list of CCs. In one aspect, the configuration component 342 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, etc.) may send the configuration of the configuration list of CCs by the first node, where the first set of CCs or the second set of CCs corresponds to the configuration list of CCs.
[0078] When the configuration is sent at block 508, the configuration of the configured list of CCs may be sent by the first node as uplink CCs having the same spatial relationship, optionally at block 510. In one aspect, the configuration component 342 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, etc.) may send the configuration of the configured list of CCs as uplink CCs having the same spatial relationship by the first node (e.g., base station 102).
[0079] When the configuration is sent at block 508, the configuration of the configuration list of CCs may be sent by the first node as downlink CCs with the same QCL assumption, optionally at block 512. In one aspect, configuration component 342 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, etc.) may send the configuration of the configuration list of CCs as downlink CCs with the same QCL assumption by the first node (e.g., base station 102).
[0080] For example, the indicated CC groups (e.g., the first group and / or the second group) may include a configuration list of CCs or may be different. For example, where the first node is base station 102, sending the first indication (e.g., at block 502) may include sending, in the first indication, an identifier of a configuration list of uplink CCs associated with the first set of CCs. Similarly, receiving the second indication (e.g., at block 504) may include receiving, from the UE, a second indication that may include an identifier of a configuration list of downlink CCs corresponding to the second set of CCs. Thus, in this example, an analog beamformer may be indicated for one or more of the configuration lists of CCs, and the node may accordingly identify the CCs to which the same analog beamformer is applied.
[0081] In another example, configuration component 342 can generate a configuration list(s) of CCs based on the identified first set of CCs (e.g., based on the first indication sent at block 502) and / or based on the identified second set of CCs (e.g., based on the second indication received at block 504). In one example, configuration component 342 can identify one or more of the configuration lists of CCs having the same special relationship or QCL assumption in the configuration by using the first indication or the second indication.
[0082] In method 500, optionally at block 514, a configuration of combinations of CCs may be sent by the first node, separate from a list of configurations of CCs having the same spatial relationship or QCL assumption. In one aspect, configuration component 342 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, etc.) may be sent by the first node (e.g., base station 102) a configuration of combinations of CCs separate from a list of configurations of CCs having the same spatial relationship or QCL assumption. Combinations of CCs separate from one or more configuration lists may include combinations of CCs that may be combined for various other purposes, which may or may not include the purpose of using the same analog beamformer. Furthermore, the combinations of CCs may include CCs of the same or different frequency bands. Additionally, for example, configuration component 342 may configure the combination(s) of CCs using RRC or other signaling.
[0083] In any case, for example, the indicated CC groups (e.g., the first group and / or the second group) may include a combination of CCs or a subset thereof. For example, where the first node is base station 102, sending the first indication (e.g., at block 502) may include sending, in the first indication, an identifier of the combination of CCs associated with the first set of CCs (as configured). Similarly, receiving the second indication (e.g., at block 504) may include receiving, from the UE, a second indication that may include an identifier of the combination of CCs corresponding to the second set of CCs (as configured). Thus, in this example, an analog beamformer may be indicated for the configured combination of CCs, and the node may accordingly identify, based on the identifier, the CCs to which the same analog beamformer is applied.
[0084] In another example, the indicated group of CCs may be a subset of the configured combination of CCs. For example, where the first node is an access point, sending the first indication (e.g., at block 502) may include sending in the first indication an identifier of a subset of the combination of CCs associated with the first set of CCs (as configured). Similarly, receiving the second indication (e.g., at block 504) may include receiving from the UE a second indication that may include an identifier of a subset of the combination of CCs corresponding to the second set of CCs (as configured). Thus, in this example, analog beamformers may be indicated for a subset of the configured combination of CCs, and the node may accordingly identify CCs to which the same analog beamformer is applied based on the identifier. For example, the identifier may identify an index of a CC in the combination associated with the first set of CCs or the second set of CCs.
[0085] In the example described above, each node (gNB or UE) can notify other nodes of each group of CCs that share the same analog beamformer on that node's side. In this regard, the other nodes can attempt to use the same transmit beam for each CC group notified by the node. Furthermore, for example, instead of reporting each group of CCs that share the same analog beamformer, the UE can separately report each group of CCs that share the same analog receiver (Rx) beamformer or transmitter (Tx) beamformer, which are used for downlink (DL) and uplink (UL), respectively, in a frequency division duplex (FDD) system. Furthermore, for example, instead of reporting each group of CCs that share the same analog beamformer, each node (gNB or UE) can report whether each CC combination uses a common analog beamformer. In this example, each CC combination can be defined in a wireless communication technology standard (e.g., a 5G standard) and correspondingly stored in a memory of the gNB or UE, or can be indicated or configured by the gNB (e.g., to the UE). For example, the CCs in each combination can be within a frequency band or across different frequency bands. For example, if different analog beamformers are used in the CC combination, the node may further indicate each subgroup of CCs that share the same analog beamformer.
[0086] Figure 6 A flow chart illustrating an example of a method 600 for separately indicating an analog transmitter beamformer and an analog receiver beamformer for use in wireless communications is shown. Figure 7 A flow chart illustrating an example of a method 700 for separately determining an analog transmitter beamformer and an analog receiver beamformer for use in wireless communications. In one example, a UE (e.g., UE 104) may use Figure 1 and Figure 2 One or more of the components described in the method 600 may be used to perform the functions described in the method 600, and / or a base station (e.g., base station 102) may use Figure 1 and Figure 3 One or more of the components described in the method 700 may be used to perform the functions described in the method 700. In a non-limiting example, each of the UE 104 and the base station 102 communicating with each other (e.g., as Figure 6 and Figure 7 The first node or the second node in and described below) can perform the functions described in methods 600 and 700 respectively, although methods 600 and 700 do not need to be performed in combination.
[0087] In method 600, at block 602, a first indication of at least a first set of CCs sharing an analog receiver beamformer at the first node may be sent by a first node to a second node. In one aspect, beam indicating component 254 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may send, by the first node to the second node, a first indication of at least a first set of CCs sharing an analog receiver beamformer at the first node, as described above with reference to FIG. Figure 4 and Figure 5 4 and 500 as described in block 402 of methods 400 and 500 .
[0088] In method 600, at block 604, a second indication of at least a second set of CCs sharing an analog transmitter beamformer at the first node may be sent by the first node to the second node. In one aspect, beam directing component 254 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may send, by the first node to the second node, a second indication of at least a second set of CCs sharing an analog transmitter beamformer at the first node. In one example, the first set of CCs and the second set of CCs may be the same or different sets of CCs. Furthermore, for example, beam directing component 254 may send the second indication in the same or separate transmission as the first indication. In some examples, the first and second indications may be combined into a single indication to indicate a set of CCs sharing the same analog transmitter beamformer and the same analog receiver beamformer.
[0089] For example, the beam indication component 254 can send a second indication including identification information for a second set of CCs that are grouped to have the same analog transmitter beamformer. The analog transmitter beamformer can correspond to a beamformer (e.g., a beamforming matrix or other indication of beamforming antenna resources at the first node) used by the first node when sending communications from the second node via the second set of CCs. In one example, the second set of CCs can correspond to a configuration list of CCs, as further described herein, or can be independent of the configuration list of CCs, or can include a subset of the configuration list of CCs. In any case, sending an indication for the second set of CCs can allow the second node to beamform antenna resources used to receive transmissions from the first node on the second set of CCs similarly using an analog receiver beamformer corresponding to the indicated analog transmitter beamformer (e.g., the same or otherwise opposite beamformer to achieve the same or opposite spatial direction used to receive from the first node).
[0090] In method 700, at block 702, a first indication of at least a first set of CCs sharing an analog receiver beamformer at the second node may be received by a first node from a second node. In one aspect, beam determination component 252 (e.g., in conjunction with processor(s) 312, memory 316, transceiver 302, communication component 242, etc.) may receive, by the first node from the second node, the first indication of at least a first set of CCs sharing an analog receiver beamformer at the second node. For example, beam determination component 252 may receive the indication from UE 104.
[0091] In method 700, at block 704, a second indication of at least a second set of CCs sharing an analog transmitter beamformer at the second node may be received by the first node from the second node. In one aspect, beam determination component 252 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, communication component 242, etc.) may receive, by the first node from the second node, a second indication of at least a second set of CCs sharing an analog transmitter beamformer at the second node. For example, beam determination component 252 may receive the indication from UE 104, as described above, where the first set of CCs and the second set of CCs may be the same or different, the first indication may be received in the same or different signal or communication as the second indication, and the like.
[0092] In method 600, optionally at block 606, antenna resources for receiving signals on each CC in the first set of CCs may be beamformed by the first node based on the first indication using an analog receiver beamformer. In one aspect, beamforming component 256 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may be beamformed by the first node based on the first indication using an analog receiver beamformer to antenna resources for receiving signals on each CC in the first set of CCs. In this example, communication component 242 may receive downlink signals from base station 102 via the CCs in the first set based on the analog receiver beamformer.
[0093] In method 700, optionally at block 706, antenna resources for transmitting signals on each CC in the first set of CCs can be beamformed by the first node based on the first indication using a corresponding analog transmitter beamformer. In one aspect, beamforming component 256 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, communication component 242, etc.) can beamform antenna resources for transmitting signals on each CC in the first set of CCs based on the first indication using a corresponding analog transmitter beamformer. For example, beam determination component 252 can determine an analog transmitter beamformer corresponding to the analog receiver beamformer received in the indication of block 702. In this example, communication component 242 can transmit downlink signals to UE 104 on the CCs in the first set based on the analog transmitter beamformer.
[0094] In method 600, optionally at block 608, antenna resources for transmitting signals on each CC in the second set of CCs may be beamformed by the first node based on the second indication using an analog transmitter beamformer. In one aspect, beamforming component 256 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may be beamformed by the first node based on the second indication using an analog transmitter beamformer on antenna resources for transmitting signals on each CC in the second set of CCs. In this example, communication component 242 may transmit uplink signals to base station 102 based on the analog transmitter beamformer on the CCs in the second set.
[0095] In method 700, optionally at block 708, antenna resources for receiving signals on each CC in the second set of CCs may be beamformed by the first node based on the second indication using a corresponding analog receiver beamformer. In one aspect, beamforming component 256 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, communication component 242, etc.) may beamform antenna resources for receiving signals on each CC in the second set of CCs based on the second indication using a corresponding analog receiver beamformer by the first node. For example, beam determination component 252 may determine an analog receiver beamformer corresponding to the analog transmitter beamformer received in the indication of block 704. In this example, communication component 242 may receive uplink signals from UE 104 on CCs in the second set based on the analog receiver beamformer.
[0096] Additionally, in one example, in the method 600 performed by the UE (e.g., as a first node), optionally at block 610, a configuration of a configuration list of CCs may be received by the first node, wherein the first group of CCs or the second group of CCs corresponds to the configuration list of CCs. In one aspect, the beam determination component 252 (e.g., in combination with the processor(s) 212, the memory 216, the transceiver 202, the communication component 242, etc.) may receive a configuration of the configuration list of CCs by the first node, wherein the first group of CCs or the second group of CCs corresponds to the configuration list of CCs, as described above. Figure 4 As described in block 408 of method 400 in FIG.
[0097] Upon receiving the configuration at block 610, optionally at block 612, a configuration of a configured list of CCs may be received by the first node (e.g., by UE 104 and from base station 102) as uplink CCs having the same spatial relationship. In one aspect, beam determination component 252 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may receive the configuration of a configured list of CCs by the first node (e.g., UE 104) as uplink CCs having the same spatial relationship, as described above. Figure 4 As described in block 410 of method 400 in FIG.
[0098] Upon receiving the configuration at block 610, optionally at block 614, a configuration of a configured list of CCs may be received by the first node (e.g., by UE 104 and from base station 102) as downlink CCs having the same QCL assumption. In one aspect, beam determination component 252 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may receive a configuration of a configured list of CCs as downlink CCs having the same QCL assumption by the first node (e.g., UE 104), as described above. Figure 4 As described in block 412 of method 400 in FIG.
[0099] For example, a configuration list of CCs and / or corresponding spatial relationships or QCL hypotheses may be received based on a first indication that a first set of CCs will share the same analog receiver beamformer and / or a second indication that a second set of CCs will share the same analog transmitter beamformer.
[0100] Furthermore, in one example, in method 600, optionally at block 616, a configuration of a combination of CCs can be determined or received, separate from a list of configurations of CCs having the same spatial relationship or QCL assumption. In one aspect, beam determination component 252 (e.g., in conjunction with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) can determine or receive (e.g., from base station 102) a configuration of a combination of CCs, separate from a list of configurations of CCs having the same spatial relationship or QCL assumption, as described above. Figure 4 As described in block 414 of method 400.
[0101] Additionally, in one example, in the method 700 performed by the base station (e.g., as the first node), optionally at block 710, the first node may transmit a configuration of a configuration list of CCs, wherein the first group of CCs or the second group of CCs corresponds to the configuration list of CCs. In one aspect, the configuration component 342 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, etc.) may transmit a configuration of a configuration list of CCs by the first node, wherein the first group of CCs or the second group of CCs corresponds to the configuration list of CCs, as described above. Figure 5 As described in block 508 of method 500 in FIG.
[0102] When the configuration is sent at block 710, the configuration of the configuration list of CCs may be sent by the first node as uplink CCs having the same spatial relationship, optionally at block 712. In one aspect, the configuration component 342 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, etc.) may be sent by the first node (e.g., the base station 102) as uplink CCs having the same spatial relationship, as described above. Figure 5 As described in block 510 of method 500 in FIG.
[0103] When the configuration is sent at block 710, the configuration of the configuration list of CCs may be sent by the first node as downlink CCs with the same QCL assumption, optionally at block 714. In one aspect, the configuration component 342 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, etc.) may be sent by the first node (e.g., the base station 102) as a downlink CC with the same QCL assumption, as described above. Figure 5 As described in block 512 of method 500 in FIG.
[0104] For example, a configuration list of CCs and / or corresponding spatial relationships or QCL assumptions may be determined and / or transmitted based on a first indication that a first set of CCs will share the same analog receiver beamformer and / or a second indication that a second set of CCs will share the same analog transmitter beamformer.
[0105] Furthermore, in one example, in method 700, optionally at block 716, a configuration of a combination of CCs can be sent by the first node, the combination of CCs being separate from a list of configurations of CCs having the same spatial relationship or QCL assumption. In one aspect, configuration component 342 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, etc.) can be sent by the first node (e.g., base station 102) a configuration of a combination of CCs, the combination of CCs being separate from a list of configurations of CCs having the same spatial relationship or QCL assumption, as described above. Figure 5 As described in block 514 of method 500 in FIG.
[0106] Figure 8 is a block diagram of a MIMO communication system 800 including a base station 102 and a UE 104 according to various aspects of the present disclosure. The MIMO communication system 800 may be shown with reference to Figure 1 Aspects of the wireless communication access network 100 are described. The base station 102 may be a reference Figure 1 Examples of various aspects of the described base station 102. Additionally, a UE 104 can communicate with another UE via sidelink resources using similar functionality as described herein with respect to UE 104 and base station 102 communications.
[0107] Base station 102 may be equipped with antennas 834 and 835, and UE 104 may be equipped with antennas 852 and 853. In MIMO communication system 800, base station 102 may be able to simultaneously transmit data over multiple communication links. Each communication link may be referred to as a "layer," and the "rank" of a communication link may indicate the number of layers used for communication. For example, in a 2×2 MIMO communication system where base station 102 transmits two "layers," the rank of the communication link between base station 102 and UE 104 is 2.
[0108] At the base station 102, a transmit (Tx) processor 820 may receive data from a data source. The transmit processor 820 may process the data. The transmit processor 820 may also generate control symbols or reference symbols. The transmit MIMO processor 830 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, or reference symbols (if applicable) and may provide output symbol streams to transmit modulators / demodulators 832 and 833. Each modulator / demodulator 832 to 833 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator / demodulator 832 to 833 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a DL signal. In one example, the DL signals from the modulators / demodulators 832 and 833 may be transmitted via antennas 834 and 835, respectively.
[0109] UE 104 may be a reference Figures 1 to 2Examples of various aspects of the UE 104 are provided. At the UE 104, UE antennas 852 and 853 can receive DL signals from the base station 102 and can provide received signals to modulators / demodulators 854 and 855, respectively. Each modulator / demodulator 854 to 855 can condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each modulator / demodulator 854 to 855 can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 856 can obtain received symbols from the modulators / demodulators 854 and 855, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive (Rx) processor 858 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 104 to a data output, and provide decoded control information to a processor 880 or memory 882.
[0110] In some cases, the processor 880 can execute stored instructions to instantiate the communication component 242 (e.g., see Figure 1 and Figure 2 ).
[0111] On the uplink (UL), at UE 104, a transmit processor 864 may receive and process data from a data source. Transmit processor 864 may also generate reference symbols for a reference signal. Symbols from transmit processor 864 may be precoded by transmit MIMO processor 866 (if applicable), further processed by modulators / demodulators 854 and 855 (e.g., for SC-FDMA, etc.), and transmitted to base station 102 based on communication parameters received from base station 102. At base station 102, UL signals from UE 104 may be received by antennas 834 and 835, processed by modulators / demodulators 832 and 833, detected by MIMO detector 836 (if applicable), and further processed by receive processor 838. Receive processor 838 may provide decoded data to a data output and to processor 840 or memory 842.
[0112] In some cases, the processor 840 can execute stored instructions to instantiate the communication component 242 (e.g., see Figure 1 and Figure 3 ).
[0113] The components of UE 104 may be individually or collectively implemented using one or more application-specific integrated circuits (ASICs) adapted to perform some or all applicable functions in hardware. Each of the modules mentioned may be a means for performing one or more functions related to the operation of MIMO communication system 800. Similarly, the components of base station 102 may be individually or collectively implemented using one or more ASICs adapted to perform some or all applicable functions in hardware. Each of the components mentioned may be a means for performing one or more functions related to the operation of MIMO communication system 800.
[0114] The following aspects are merely illustrative, and aspects thereof may be combined without limitation with aspects of other embodiments or teachings described herein.
[0115] Aspect 1 is a method for wireless communication, comprising: sending, by a first node to a second node, a first indication of at least a first set of component carriers (CCs) that share an analog receiver beamformer at the first node; receiving, by the first node from the second node, a second indication of at least a second set of CCs that share the analog receiver beamformer at the second node; and beamforming, by the first node and based on the second indication, a signal sent to the second node on each CC in the second set of CCs using the same analog transmitter beamformer.
[0116] In aspect 2, the method according to aspect 1 includes receiving, by the first node, a configuration of at least one configuration list of CCs, wherein at least one of the first set of CCs or the second set of CCs corresponds to the at least one configuration list of CCs.
[0117] In aspect 3, the method according to aspect 2 includes wherein at least one of the first indication or the second indication comprises an identifier associated with at least one list of CCs.
[0118] In aspect 4, the method according to any one of aspects 2 to 3 includes wherein the first node is a user equipment (UE), wherein receiving the configuration of at least one configuration list of CCs includes receiving the configuration of at least one configuration list of CCs from an access point as uplink CCs having the same spatial relationship.
[0119] In aspect 5, the method according to any one of aspects 2 to 4 includes wherein the first node is a user equipment (UE), wherein receiving the configuration of at least one configuration list of CCs includes receiving the configuration of at least one configuration list of CCs from an access point as downlink CCs with the same quasi co-location (QCL) assumption.
[0120] In aspect 6, the method according to any one of aspects 1 to 5 includes determining or receiving, by the first node, a configuration of a combination of CCs, the combination of CCs being separate from a list of configurations of CCs having the same spatial relationship or quasi co-location (QCL) assumption.
[0121] In aspect 7, the method of aspect 6 includes receiving a configuration list of CCs from an access point, wherein the combination of CCs includes one CC from the configuration list of CCs and does not include another CC from the configuration list of CCs.
[0122] In aspect 8, the method according to any one of aspects 6 or 7 includes wherein at least two CCs in the combination of CCs are in different frequency bands.
[0123] In aspect 9, the method according to any one of aspects 6 to 8 includes wherein the first set of CCs comprises a portion of CCs in at least one list of CCs, and wherein the first indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
[0124] In aspect 10, the method according to any one of aspects 6 to 9 includes wherein the second set of CCs comprises a portion of CCs in at least one list of CCs, and wherein the second indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
[0125] In aspect 11, the method according to any one of aspects 1 to 10 comprises sending, by the first node, a configuration of at least one configuration list of CCs, wherein at least one of the first set of CCs or the second set of CCs corresponds to the at least one configuration list of CCs.
[0126] In aspect 12, the method according to aspect 11 includes wherein at least one of the first indication or the second indication comprises an identifier associated with at least one list of CCs.
[0127] In aspect 13, the method according to any one of aspects 11 or 12 includes wherein the first node is an access point, wherein sending the configuration of at least one configuration list of CCs includes sending the configuration of at least one configuration list of CCs to a user equipment (UE) as uplink CCs having the same spatial relationship.
[0128] In aspect 14, the method according to aspect 13 includes generating at least one configuration list of CCs based at least in part on the first set of CCs.
[0129] In aspect 15, the method according to any one of aspects 11 or 14 includes wherein the first node is an access point, wherein sending the configuration of at least one configuration list of CCs includes sending the configuration of at least one configuration list of CCs to a user equipment (UE) as downlink CCs with the same quasi co-location (QCL) assumption.
[0130] In aspect 16, the method according to aspect 15 includes generating at least one configuration list of CCs based at least in part on the second set of CCs.
[0131] In aspect 17, the method according to any one of aspects 11 to 16 comprises sending, by the first node, a configuration of combinations of CCs separate from a list of configurations of CCs having the same spatial relationship or quasi co-location (QCL) assumption.
[0132] In aspect 18, the method according to aspect 17 includes sending a configured list of CCs to a user equipment (UE), wherein the combination of CCs includes one CC from the configured list of CCs and does not include another CC from the configured list of CCs.
[0133] In aspect 19, the method according to any one of aspects 17 or 18 includes wherein at least two CCs in the combination of CCs are in different frequency bands.
[0134] In aspect 20, the method according to any one of aspects 17 to 19 includes wherein the first set of CCs comprises a portion of CCs in at least one list of CCs, and wherein the first indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
[0135] In aspect 21, the method according to any one of aspects 17 to 20 includes wherein the second set of CCs comprises a portion of CCs in at least one list of CCs, and wherein the second indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
[0136] Aspect 22 is an apparatus for wireless communication, comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to execute the instructions to perform operations according to one or more methods in any one of Aspects 1 to 21.
[0137] Aspect 23 is an apparatus for wireless communication, comprising means for performing operations according to one or more methods of any one of aspects 1 to 21.
[0138] Aspect 24 is a computer-readable medium comprising code executable by one or more processors to perform operations according to one or more methods of any one of aspects 1 to 21.
[0139] The above detailed description set forth above in conjunction with the accompanying drawings describes examples and does not merely represent examples that may be implemented or within the scope of the claims. The term "example" used in this description means "serving as an example, instance, or illustration," rather than "preferred" or "superior to other examples." For the purpose of providing an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be practiced without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the examples.
[0140] Information and signals 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 above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.
[0141] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed with a specially programmed device designed to perform the functions described herein, such as, but not limited to, a processor, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The specially programmed processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or any other such configuration.
[0142] The functions described herein may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or sent via a non-transitory computer-readable medium. Other examples and embodiments are within the scope and spirit of the present disclosure and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a specially programmed processor, hardware, hard wiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations. In addition, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or." That is, unless otherwise stated or clear from the context, a phrase (e.g., "X employs A or B") is intended to mean any natural inclusive arrangement. That is, for example, the phrase "X employs A or B" satisfies any of the following conditions: X employs A; X employs B; or X employs both A and B. Also, as used herein, including in the claims, “or” used in a list of items beginning with “at least one of” indicates a disjunctive list, so 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).
[0143] Computer readable medium comprises both computer storage medium and communication medium, and this communication medium comprises and is conducive to any medium that computer program is transferred from one place to another place.Storage medium can be any available medium that can be accessed by general or special-purpose computer.By way of example and not limitation, computer readable medium can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage device, or can be used for carrying or storing any other medium of desired program code component, this desired program code component is in the form of instruction or data structure and can be accessed by general or special-purpose computer or general or special-purpose processor.In addition, any connection is all suitably called computer readable medium.For example, if software is to use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology (such as infrared, radio and microwave) to send from website, server or other remote source, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology (such as infrared, radio and microwave) can be included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
[0144] The above description of the present disclosure is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the spirit or scope of the present disclosure. In addition, although the elements of the various aspects and / or embodiments may be described or claimed in the singular, plural forms may also be envisioned, unless restrictions on the singular are explicitly stated. In addition, unless otherwise stated, all or part of any aspect and / or embodiment may be utilized together with all or part of any other aspect and / or embodiment. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for wireless communication, comprising: Sending, by a first node to a second node, a first indication of at least a first set of component carriers CC that share a first analog beamformer at the first node; receiving, by the first node from the second node, a second indication of a second set of CCs sharing a second analog beamformer at the second node, wherein the second set of CCs is the same as the first set of CCs; performing, by the first node and based on the second indication, beamforming antenna resources for transmitting signals with the second node on each CC in the second set of CCs using a corresponding analog beamformer corresponding to the second analog beamformer; wherein (1) transmission refers to reception, and the first analog beamformer and the second analog beamformer are analog beamformers for transmission, and the corresponding analog beamformer is an analog beamformer for reception, or (2) transmission refers to transmission, and the first analog beamformer and the second analog beamformer are analog beamformers for reception, and the corresponding analog beamformer is an analog beamformer for transmission. 2 . The method of claim 1 , further comprising receiving, by the first node, a configuration of at least one configuration list of CCs, wherein at least one of the first set of CCs or the second set of CCs corresponds to the at least one configuration list of CCs. The method of claim 2 , wherein receiving the configuration is based on at least one of sending the first indication or sending the second indication. 4 . The method of claim 3 , wherein at least one of the first indication or the second indication comprises an identifier associated with the at least one list of CCs.
5. The method of claim 3, wherein the first node is a user equipment (UE), wherein receiving the configuration of the at least one configuration list of CCs comprises receiving the configuration of the at least one configuration list of CCs from an access point as uplink CCs having the same spatial relationship.
6. The method of claim 3, wherein the first node is a user equipment (UE), wherein receiving the configuration of the at least one configuration list of CCs comprises receiving the configuration of the at least one configuration list of CCs from an access point as downlink CCs with the same quasi co-located (QCL) assumption.
7. The method of claim 1, further comprising determining or receiving, by the first node, a configuration of combinations of CCs, the combinations of CCs being separate from a list of configurations of CCs having the same spatial relationship or quasi co-located QCL assumption.
8. The method of claim 7, further comprising receiving the configured list of CCs from an access point, wherein the combination of CCs includes one CC from the configured list of CCs and does not include another CC from the configured list of CCs.
9. The method of claim 7, wherein at least two CCs in the combination of CCs are in different frequency bands.
10. The method of claim 7, wherein the first set of CCs comprises a portion of CCs in the at least one list of CCs, and wherein the first indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
11. The method of claim 7, wherein the second set of CCs comprises a portion of CCs in the at least one list of CCs, and wherein the second indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
12. A first apparatus for wireless communication, comprising: transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to: sending a first indication to a second device of at least a first set of component carriers (CC) that share a first analog beamformer at the first device; receiving, from the second device, a second indication of a second set of CCs sharing a second analog beamformer at the second device, wherein the second set of CCs is the same as the first set of CCs; performing, based on the second indication, beamforming antenna resources for transmitting signals with the second apparatus on each CC in the second set of CCs using a corresponding analog beamformer corresponding to the second analog beamformer; wherein (1) transmission refers to reception, and the first analog beamformer and the second analog beamformer are analog beamformers for transmission, and the corresponding analog beamformer is an analog beamformer for reception, or (2) transmission refers to transmission, and the first analog beamformer and the second analog beamformer are analog beamformers for reception, and the corresponding analog beamformer is an analog beamformer for transmission.
13. The first apparatus of claim 12, wherein the one or more processors are further configured to receive a configuration of at least one configuration list of CCs, wherein at least one of the first set of CCs or the second set of CCs corresponds to the at least one configuration list of CCs. 14 . The first device of claim 13 , wherein the one or more processors are configured to receive the configuration based on at least one of sending the first indication or sending the second indication. 15 . The first device of claim 14 , wherein at least one of the first indication or the second indication comprises an identifier associated with the at least one list of CCs. 16 . The first apparatus of claim 14 , wherein the first apparatus is a user equipment (UE), wherein the one or more processors are configured to receive the configuration of the at least one configuration list of CCs from an access point as uplink CCs having the same spatial relationship.
17. The first apparatus of claim 14, wherein the first apparatus is a user equipment (UE), wherein the one or more processors are configured to receive, from an access point, a configuration of the at least one configuration list of CCs as downlink CCs having the same quasi co-located (QCL) assumption.
18. The first apparatus of claim 12, wherein the one or more processors are further configured to determine or receive a configuration of a combination of CCs, the combination of CCs being separate from a list of configurations of CCs having the same spatial relationship or quasi-co-located QCL assumption.
19. The first apparatus of claim 18, wherein the one or more processors are further configured to receive the configuration list of CCs from an access point, wherein the combination of CCs includes one CC from the configuration list of CCs and does not include another CC from the configuration list of CCs.
20. The first apparatus of claim 18, wherein at least two CCs in the combination of CCs are in different frequency bands.
21. The first apparatus of claim 18, wherein the first set of CCs comprises a portion of CCs in the at least one list of CCs, and wherein the first indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
22. The first apparatus of claim 18, wherein the second set of CCs comprises a portion of CCs in the at least one list of CCs, and wherein the second indication comprises identifiers associated with the portion of CCs in the at least one list of CCs.
23. A method for wireless communication, comprising: Receiving, by a first node from a second node, a first indication of at least a first set of component carriers CC that share a first analog beamformer at the second node; sending, by the first node to the second node, a second indication of a second set of CCs sharing a second analog beamformer at the first node, wherein the second set of CCs is the same as the first set of CCs; performing, by the first node and based on the first indication, beamforming antenna resources for transmitting signals on each CC in the first set of CCs using a corresponding analog beamformer corresponding to the first analog beamformer; wherein (1) transmission refers to sending, the first analog beamformer and the second analog beamformer are analog beamformers for receiving, and the corresponding analog beamformer is an analog beamformer for sending, or (2) transmission refers to receiving, the first analog beamformer and the second analog beamformer are analog beamformers for sending, and the corresponding analog beamformer is an analog beamformer for receiving.
24. The method of claim 23, further comprising sending, by the first node, a configuration of at least one configuration list of CCs, wherein at least one of the first set of CCs or the second set of CCs corresponds to the at least one configuration list of CCs.
25. The method of claim 24, wherein sending the configuration is based on at least one of receiving the first indication or receiving the second indication.
26. The method of claim 23, further comprising sending, by the first node, a configuration of combinations of CCs, the combinations of CCs separate from a list of configurations of CCs having the same spatial relationship or quasi co-located QCL assumption.
27. The method of claim 26, further comprising transmitting the configured list of CCs, wherein the combination of CCs includes one CC from the configured list of CCs and does not include another CC from the configured list of CCs.
28. The method of claim 27, wherein at least two CCs in the combination of CCs are in different frequency bands.
29. A first apparatus for wireless communication, comprising: transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to: receiving, from a second device, a first indication of at least a first set of component carriers (CC) that share a first analog beamformer at the second device; sending a second indication to the second device of a second set of CCs that share a second analog beamformer at the first device, wherein the second set of CCs is the same as the first set of CCs; Based on the first indication, beamforming antenna resources for transmitting signals on each CC in the first set of CCs using a corresponding analog beamformer corresponding to the first analog beamformer; as well as wherein (1) transmission refers to sending, the first analog beamformer and the second analog beamformer are analog beamformers for receiving, and the corresponding analog beamformer is an analog beamformer for sending, or (2) transmission refers to receiving, the first analog beamformer and the second analog beamformer are analog beamformers for sending, and the corresponding analog beamformer is an analog beamformer for receiving.
30. The first apparatus of claim 29, wherein the one or more processors are further configured to send a configuration of at least one configuration list of CCs, wherein at least one of the first set of CCs or the second set of CCs corresponds to the at least one configuration list of CCs.
31. A computer-readable medium having program instructions recorded thereon, wherein: The program instructions are executable by one or more processors of the first node to enable the processors to perform the method according to any one of claims 1 to 11.
32. A computer-readable medium having program instructions recorded thereon, wherein: The program instructions are executable by one or more processors of the second node to cause the processors to perform the method of any one of claims 23-28.
33. A computer program product having program instructions recorded thereon, wherein: The program instructions are executable by one or more processors of the first node to enable the processors to perform the method according to any one of claims 1 to 11.
34. A computer program product having program instructions recorded thereon, wherein: The program instructions are executable by one or more processors of the second node to cause the processors to perform the method of any one of claims 23-28.
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