EP3566527A1 - Acquisition de faisceau à l'aide d'une structure de signal de référence pour systèmes de communication - Google Patents

Acquisition de faisceau à l'aide d'une structure de signal de référence pour systèmes de communication

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Publication number
EP3566527A1
EP3566527A1 EP17847748.5A EP17847748A EP3566527A1 EP 3566527 A1 EP3566527 A1 EP 3566527A1 EP 17847748 A EP17847748 A EP 17847748A EP 3566527 A1 EP3566527 A1 EP 3566527A1
Authority
EP
European Patent Office
Prior art keywords
csi
dmrs
processors
broadcast data
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17847748.5A
Other languages
German (de)
English (en)
Inventor
Yushu Zhang
Gang Xiong
Dae Won Lee
Alexei Davydov
Seunghee Han
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Intel IP Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intel IP Corp filed Critical Intel IP Corp
Publication of EP3566527A1 publication Critical patent/EP3566527A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • Various embodiments generally relate to the field of wireless communications.
  • Wireless or mobile communication involves wireless communication between two or more devices.
  • the communication requires resources to transmit data from one device to another and/or to receive data at one device from another.
  • Data is transmitted using beams from one device to another.
  • the size and shape of the beam impacts data rate, interference and the like.
  • Beamforming is typically performed to weight and form beams from one or more antenna to enhance signal strength, data rate, and mitigate interference.
  • the beamforming adjusts the size and shape of the beam or beams used for the communication.
  • beamforming can consume substantial resources to effectively shape a beam, which increases power consumption, circuit complexity and the like.
  • FIG. 1 illustrates a block diagram of an example wireless communications network environment for a network device (e.g., a UE, gNB or an eNB) according to various aspects or embodiments.
  • a network device e.g., a UE, gNB or an eNB
  • FIG. 2 illustrates another block diagram of an example of wireless
  • FIG. 3 another block diagram of an example of wireless communications network environment for network device (e.g., a UE, gNB or an eNB) with various interfaces according to various aspects or embodiments.
  • FIG. 4 is a diagram illustrating an architecture of a system for providing channel state information reference signals (CSI-RS) with broadcast data for beam selection for mobile communications in accordance with some embodiments.
  • CSI-RS channel state information reference signals
  • FIG. 5 is a diagram illustrating a downlink transmission utilizing resource reference signal mapping for an architecture in accordance with some embodiments.
  • FIG. 6 is a diagram illustrating a downlink transmission utilizing reference signal resource mapping for an architecture in accordance with some embodiments.
  • FIG. 7 A is a diagram illustrating a downlink transmission utilizing localized resource mapping for an architecture in accordance with some embodiments.
  • FIG. 7B is a diagram illustrating a downlink transmission utilizing distributed resource mapping for an architecture in accordance with some embodiments.
  • FIG. 8 is a diagram illustrating a downlink transmission utilizing interleaved resource mapping for an architecture in accordance with some embodiments.
  • FIG. 9 is a flow diagram illustrating a method of providing reference signals with broadcast data in accordance with some embodiments.
  • Embodiments herein may be related to RAN1 and 5G.
  • terms “component,” “system,” “interface,” and the like are intended to refer to a computer-related entity, hardware, software (e.g., in execution), and/or firmware.
  • a component can be a processor, a process running on a processor, a controller, an object, an executable, a program, a storage device, and/or a computer with a processing device.
  • an application running on a server and the server can also be a component.
  • One or more components can reside within a process, and a component can be localized on one computer and/or distributed between two or more computers.
  • a set of elements or a set of other components can be described herein, in which the term “set” can be interpreted as "one or more.”
  • these components can execute from various computer readable storage media having various data structures stored thereon such as with a module, for example.
  • the components can communicate via local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network, such as, the Internet, a local area network, a wide area network, or similar network with other systems via the signal).
  • a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network, such as, the Internet, a local area network, a wide area network, or similar network with other systems via the signal).
  • a component can be an apparatus with specific functionality provided by mechanical parts operated by electric or electronic circuitry, in which the electric or electronic circuitry can be operated by a software application or a firmware application executed by one or more processors.
  • the one or more processors can be internal or external to the apparatus and can execute at least a part of the software or firmware application.
  • a component can be an apparatus that provides specific functionality through electronic components without mechanical parts; the electronic components can include one or more processors therein to execute software and/or firmware that confer(s), at least in part, the functionality of the electronic components.
  • circuitry may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • circuitry may include logic, at least partially operable in hardware.
  • Techniques for improving data rates can include lowering overhead and/or better utilizing resources, including beamforming.
  • Communication systems such as 5G can operate in high frequency bands, such as 3300 - 4200 mega hertz (MHz) and 4400 - 4990 MHz or even 27.5 - 28.35 GHz and 37 - 40 GHz.
  • high frequency bands such as 3300 - 4200 mega hertz (MHz) and 4400 - 4990 MHz or even 27.5 - 28.35 GHz and 37 - 40 GHz.
  • Beamforming is used to facilitate communication.
  • a suitable type of beamforming that can be used is hybrid beamforming, which incorporates aspects of both baseband/digital beamforming and RF/analog beamforming.
  • a gNodeB and a UE may maintain a plurality of beams for beamformed beams for use.
  • An initial beam acquisition to find a suitable gNB UE beam pair can be established to increase or enhance a link budget.
  • the initial acquisition can be accomplished using a reference signal such as a channel state information reference signal (CSI-RS).
  • CSI-RS channel state information reference signal
  • One technique to establish an initial beam or initial beam pair is to utilize a beam sweeping operation.
  • the beam sweeping operation tries or sweeps through available beams, such as a plurality of available beams in a cell. Then, feedback is received and analyzed to determine a suitable beam.
  • the beam sweeping identifies the initial beam or beam pair that meats determined or selected transmission criteria, such as data rate, reliability, signal to noise ratio (SNR) and the like. In one example, the beam that results in the highest or strongest receiving power is selected as the initial beam.
  • beam sweeping has substantial overhead in terms of complexity, processing time and power use. This overhead is particularly problematic when the numer of antenna panels or ports in a gNB is limited, but the number of antenna elements is large.
  • One technique to reduce overhead is to transmit the CSI-RS with
  • Embodiments are disclosed that include and/or techniques to facilitate beamforming, including selection of initial beams. Further, the embodiments utilize reference signals transmitted with broadcasting signals.
  • FIG. 1 illustrates an architecture of a system 100 of a network in accordance with some embodiments.
  • the system 100 is shown to include a user equipment (UE) 101 and a UE 102.
  • the UEs 101 and 1 02 are illustrated as smartphones (e.g., handheld touchscreen mobile computing devices connectable to one or more cellular networks), but can also comprise any mobile or non-mobile computing device, such as Personal Data Assistants (PDAs), pagers, laptop computers, desktop computers, wireless handsets, or any computing device including a wireless communications interface.
  • PDAs Personal Data Assistants
  • pagers pagers
  • laptop computers desktop computers
  • wireless handsets or any computing device including a wireless communications interface.
  • any of the UEs 101 and 102 can comprise an Internet of Things (loT) UE, which can comprise a network access layer designed for low-power loT applications utilizing short-lived UE connections.
  • An loT UE can utilize technologies such as machine-to-machine (M2M) or machine-type communications (MTC) for exchanging data with an MTC server or device via a public land mobile network (PLMN), Proximity-Based Service (ProSe) or device-to-device (D2D) communication, sensor networks, or loT networks.
  • M2M or MTC exchange of data can be a machine-initiated exchange of data.
  • loT network describes interconnecting loT UEs, which can include uniquely identifiable embedded computing devices (within the Internet infrastructure), with short-lived connections.
  • the loT UEs can execute background applications (e.g., keep-alive messages, status updates, etc.) to facilitate the connections of the loT network.
  • the UEs 101 and 102 can be configured to connect, e.g., communicatively couple, with a radio access network (RAN) 1 10—
  • the RAN 1 10 can be, for example, an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN), a NextGen RAN (NG RAN), or some other type of RAN.
  • UMTS Evolved Universal Mobile Telecommunications System
  • E-UTRAN Evolved Universal Mobile Telecommunications System
  • NG RAN NextGen RAN
  • the UEs 101 and 102 utilize connections 103 and 104, respectively, each of which comprises a physical communications interface or layer (discussed in further detail below); in this example, the connections 103 and 104 are illustrated as an air interface to enable communicative coupling, and can be consistent with cellular communications protocols, such as a Global System for Mobile Communications (GSM) protocol, a code-division multiple access (CDMA) network protocol, a Push-to-Talk (PTT) protocol, a PTT over Cellular (POC) protocol, a Universal Mobile Telecommunications System (UMTS) protocol, a 3GPP Long Term Evolution (LTE) protocol, a fifth generation (5G) protocol, a New Radio (NR) protocol, and the like.
  • GSM Global System for Mobile Communications
  • CDMA code-division multiple access
  • PTT Push-to-Talk
  • POC PTT over Cellular
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • 5G fifth generation
  • NR New Radio
  • the UEs 101 and 1 02 can further directly exchange communication data via a ProSe interface 105.
  • the ProSe interface 105 can be any suitable ProSe interface 105.
  • a sidelink interface comprising one or more logical channels, including but not limited to a Physical Sidelink Control Channel (PSCCH), a Physical Sidelink Shared Channel (PSSCH), a Physical Sidelink Discovery Channel (PSDCH), and a Physical Sidelink Broadcast Channel (PSBCH).
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSDCH Physical Sidelink Discovery Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the UE 102 is shown to be configured to access an access point (AP) 106 via connection 107.
  • the connection 107 can comprise a local wireless connection, such as a connection consistent with any IEEE 802.1 1 protocol, wherein the AP 106 would comprise a wireless fidelity (WiFi®) router.
  • WiFi® wireless fidelity
  • the AP 1 06 is shown to be connected to the Internet without connecting to the core network of the wireless system (described in further detail below).
  • the RAN 1 1 0 can include one or more access nodes that enable the connections 1 03 and 104.
  • These access nodes (ANs) can be referred to as base stations (BSs), NodeBs, evolved NodeBs (eNBs), next Generation NodeBs (gNB), RAN nodes, and so forth, and can comprise ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell).
  • BSs base stations
  • eNBs evolved NodeBs
  • gNB next Generation NodeBs
  • RAN nodes and so forth, and can comprise ground stations (e.g., terrestrial access points) or satellite stations providing coverage within a geographic area (e.g., a cell).
  • a network device as referred to herein can include any one of these APs, ANs, UEs or any other network component.
  • the RAN 1 10 can include one or more RAN nodes for providing macrocells, e.g., macro RAN node 1 1 1 , and one or more RAN nodes for providing femtocells or picocells (e.g., cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells), e.g., low power (LP) RAN node 1 12.
  • RAN nodes for providing macrocells e.g., macro RAN node 1 1 1
  • femtocells or picocells e.g., cells having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells
  • LP low power
  • any of the RAN nodes 1 1 1 and 1 12 can terminate the air interface protocol and can be the first point of contact for the UEs 101 and 102.
  • any of the RAN nodes 1 1 1 and 1 12 can fulfill various logical functions for the RAN 1 1 0 including, but not limited to, radio network controller (RNC) functions such as radio bearer management, uplink (UL) and downlink (DL) dynamic radio resource
  • RNC radio network controller
  • the UEs 101 and 102 can be configured to communicate using Orthogonal Frequency-Division Multiplexing (OFDM) communication signals with each other or with any of the RAN nodes 1 1 1 and 1 1 2 over a multicarrier communication channel in accordance various communication techniques, such as, but not limited to, an Orthogonal Frequency-Division Multiple Access (OFDMA) communication technique (e.g., for downlink communications) or a Single Carrier Frequency Division Multiple Access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink communications), although the scope of the embodiments is not limited in this respect.
  • OFDM signals can comprise a plurality of orthogonal subcarriers.
  • a downlink resource grid can be used for downlink transmissions from any of the RAN nodes 1 1 1 and 1 12 to the UEs 101 and 1 02, while uplink transmissions can utilize similar techniques.
  • the grid can be a time-frequency grid, called a resource grid or time-frequency resource grid, which is the physical resource in the downlink in each slot.
  • a time-frequency plane representation is a common practice for OFDM systems, which makes it intuitive for radio resource allocation.
  • Each column and each row of the resource grid corresponds to one OFDM symbol and one OFDM subcarrier, respectively.
  • the duration of the resource grid in the time domain corresponds to one slot in a radio frame.
  • the smallest time-frequency unit in a resource grid is denoted as a resource element.
  • Each resource grid comprises a number of resource blocks, which describe the mapping of certain physical channels to resource elements.
  • Each resource block comprises a collection of resource elements; in the frequency domain, this can represent the smallest quantity of resources that currently can be allocated.
  • the physical downlink shared channel can carry user data and higher-layer signaling to the UEs 101 and 102.
  • the physical downlink control channel (PDCCH) can carry information about the transport format and resource allocations related to the PDSCH channel, among other things. It can also inform the UEs 101 and 102 about the transport format, resource allocation, and H-ARQ (Hybrid Automatic Repeat Request) information related to the uplink shared channel.
  • downlink scheduling assigning control and shared channel resource blocks to the UE 102 within a cell
  • the downlink resource assignment information can be sent on the PDCCH used for (e.g., assigned to) each of the UEs 101 and 1 02.
  • the PDCCH can use control channel elements (CCEs) to convey the control information.
  • CCEs control channel elements
  • the PDCCH complex-valued symbols can first be organized into quadruplets, which can then be permuted using a sub-block interleaver for rate matching.
  • Each PDCCH can be transmitted using one or more of these CCEs, where each CCE can correspond to nine sets of four physical resource elements known as resource element groups (REGs).
  • RAGs resource element groups
  • QPSK Quadrature Phase Shift Keying
  • the PDCCH can be transmitted using one or more CCEs, depending on the size of the downlink control information (DCI) and the channel condition.
  • DCI downlink control information
  • There can be four or more different PDCCH formats defined in LTE with different numbers of CCEs (e.g., aggregation level, L 1 , 2, 4, or 8).
  • Some embodiments can use concepts for resource allocation for control channel information that are an extension of the above-described concepts.
  • some embodiments can utilize an enhanced physical downlink control channel (EPDCCH) that uses PDSCH resources for control information transmission.
  • the EPDCCH can be transmitted using one or more enhanced the control channel elements (ECCEs). Similar to above, each ECCE can correspond to nine sets of four physical resource elements known as an enhanced resource element groups (EREGs). An ECCE can have other numbers of EREGs in some situations.
  • EPCCH enhanced physical downlink control channel
  • ECCEs enhanced the control channel elements
  • each ECCE can correspond to nine sets of four physical resource elements known as an enhanced resource element groups (EREGs).
  • EREGs enhanced resource element groups
  • An ECCE can have other numbers of EREGs in some situations.
  • the RAN 1 1 0 is shown to be communicatively coupled to a core network (CN) 1 20— via an S1 interface 1 1 3.
  • the CN 120 can be an evolved packet core (EPC) network, a NextGen Packet Core (NPC) network, or some other type of CN.
  • EPC evolved packet core
  • NPC NextGen Packet Core
  • the S1 interface 1 13 is split into two parts: the S1 -U interface 1 14, which carries traffic data between the RAN nodes 1 1 1 and 1 12 and the serving gateway (S-GW) 122, and the S1 -mobility management entity (MME) interface 1 15, which is a signaling interface between the RAN nodes 1 1 1 and 1 12 and MMEs 121 .
  • MME mobility management entity
  • the CN 1 20 comprises the MMEs 1 21 , the S-GW 122, the Packet Data Network (PDN) Gateway (P-GW) 123, and a home subscriber server (HSS) 124.
  • the MMEs 121 can be similar in function to the control plane of legacy Serving General Packet Radio Service (GPRS) Support Nodes (SGSN).
  • GPRS General Packet Radio Service
  • the MMEs 121 can manage mobility aspects in access such as gateway selection and tracking area list management.
  • the HSS 124 can comprise a database for network users, including subscription-related information to support the network entities' handling of
  • the CN 120 can comprise one or several HSSs 124, depending on the number of mobile subscribers, on the capacity of the equipment, on the organization of the network, etc.
  • the HSS 124 can provide support for routing/roaming, authentication, authorization, naming/addressing resolution, location dependencies, etc.
  • the S-GW 122 can terminate the S1 interface 1 13 towards the RAN 1 1 0, and routes data packets between the RAN 1 10 and the CN 120.
  • the S-GW 122 can be a local mobility anchor point for inter-RAN node handovers and also can provide an anchor for inter-3GPP mobility. Other responsibilities can include lawful intercept, charging, and some policy enforcement.
  • the P-GW 123 can terminate an SGi interface toward a PDN.
  • the P-GW 123 can route data packets between the CN network 120 and external networks such as a network including the application server 130 (alternatively referred to as application function (AF)) via an Internet Protocol (IP) interface 125.
  • the application server 130 can be an element offering applications that use IP bearer resources with the core network (e.g., UMTS Packet Services (PS) domain, LTE PS data services, etc.).
  • PS UMTS Packet Services
  • LTE PS data services etc.
  • the P-GW 123 is shown to be communicatively coupled to an application server 130 via an IP communications interface 125.
  • the application server 130 can also be configured to support one or more communication services (e.g., Voice-over-Internet Protocol (VoIP) sessions, PTT sessions, group communication sessions, social networking services, etc.) for the UEs 101 and 102 via the CN 120.
  • VoIP Voice-over-Internet Protocol
  • PTT sessions PTT sessions
  • group communication sessions social networking services, etc.
  • the P-GW 123 can further be a node for policy enforcement and charging data collection.
  • Policy and Charging Enforcement Function (PCRF) 126 is the policy and charging control element of the CN 120.
  • PCRF Policy and Charging Enforcement Function
  • HPLMN Home Public Land Mobile Network
  • IP-CAN Internet Protocol Connectivity Access Network
  • HPLMN Home Public Land Mobile Network
  • V-PCRF Visited PCRF
  • VPLMN Visited Public Land Mobile Network
  • the PCRF 126 can be communicatively coupled to the application server 130 via the P-GW 123.
  • the application server 130 can signal the PCRF 1 26 to indicate a new service flow and select the appropriate Quality of Service (QoS) and charging parameters.
  • the PCRF 126 can provision this rule into a Policy and Charging Enforcement Function (PCEF) (not shown) with the appropriate traffic flow template (TFT) and QoS class of identifier (QCI), which commences the QoS and charging as specified by the application server 130.
  • PCEF Policy and Charging Enforcement Function
  • TFT traffic flow template
  • QCI QoS class of identifier
  • IMS services can be identified more accurately in a paging indication, which can enable the UEs 101 , 102 to differentiate between PS paging and IMS service related paging.
  • the UEs 101 , 102 can apply preferential prioritization for IMS services as desired based on any number of requests by any application, background searching (e.g., PLMN searching or the like), process, or communication.
  • the UEs 1 01 , 102 can differentiate the PS domain paging to more distinguishable categories, so that IMS services can be identified clearly in the UEs 101 , 102 in comparison to PS services.
  • a network e.g., CN 120, RAN 1 10, AP 106, or combination thereof as an eNB or the other network device
  • a network can provide further, more specific information with the TS 36.331 -Paging message, such as a "paging cause" parameter.
  • the UE can use this information to decide whether to respond to the paging, possibly interrupting some other procedure like an ongoing PLMN search.
  • UEs 101 , 102 can be registered to a visited PLMN
  • PLMN PLMN
  • PLMN search i.e., background scan for a home PLMN
  • HPLMN HPLMN
  • PLMN Packet Control
  • a registered UE is performing a manual
  • the PLMN search can be interrupted in order to move to a connected mode and respond to a paging operation as part of a MT procedure / operation.
  • this paging could be for PS data (non-IMS data), where, for example, an application server 130 in the NW wants to push to the UE 101 or 102 for one of the many different applications running in / on the UE 101 or 1 02, for example.
  • PS data non-IMS data
  • the PS data could be delay tolerant and less important, in legacy networks the paging is often not able to be ignored completely, as critical services like an IMS call can be the reason for the PS paging.
  • the multiple interruptions of the PLMN search caused by the paging can result in an unpredictable delay of the PLMN search or in the worst case even in a failure of the procedure, resulting in a loss of efficiency in network
  • a delay in moving to or handover to a preferred PLMN (via manual PLMN search or HPLMN search) in a roaming condition can incur more roaming charges on a user as well.
  • FIG. 2 illustrates example components of a network device 200 in accordance with some embodiments.
  • the device 200 can include application circuitry 202, baseband circuitry 204, Radio Frequency (RF) circuitry 206, front-end module (FEM) circuitry 208, one or more antennas 210, and power management circuitry (PMC) 21 2 coupled together at least as shown.
  • the components of the illustrated device 200 can be included in a UE 101 , 102 or a RAN node 1 1 1 , 1 12, AP, AN, eNB or other network component.
  • the device 200 can include less elements (e.g., a RAN node can not utilize application circuitry 202, and instead include a processor/controller to process IP data received from an EPC).
  • the network device 200 can include additional elements such as, for example, memory/storage, display, camera, sensor, or input/output (I/O) interface.
  • the components described below can be included in more than one device (e.g., said circuitries can be separately included in more than one device for Cloud-RAN (C-RAN) implementations).
  • the application circuitry 202 can include one or more application processors.
  • the application circuitry 202 can include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processor(s) can include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, etc.).
  • the processors can be coupled with or can include memory/storage and can be configured to execute instructions stored in the memory/storage to enable various applications or operating systems to run on the device 200.
  • processors of application circuitry 202 can process IP data packets received from an EPC.
  • the baseband circuitry 204 can include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the baseband circuitry 204 can include one or more baseband processors or control logic to process baseband signals received from a receive signal path of the RF circuitry 206 and to generate baseband signals for a transmit signal path of the RF circuitry 206.
  • Baseband processing circuity 204 can interface with the application circuitry 202 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 206.
  • the baseband circuitry 204 can include a third generation (3G) baseband processor 204A, a fourth generation (4G) baseband processor 204B, a fifth generation (5G) baseband processor 204C, or other baseband processor(s) 204D for other existing generations, generations in development or to be developed in the future (e.g., second generation (2G), si2h generation (6G), etc.).
  • the baseband circuitry 204 e.g., one or more of baseband processors 204A-D
  • baseband processors 204A-D can be included in modules stored in the memory 204G and executed via a Central Processing Unit (CPU) 204E.
  • the radio control functions can include, but are not limited to, signal modulation/demodulation, encoding/decoding, radio frequency shifting, etc.
  • modulation/demodulation circuitry of the baseband circuitry 204 can include Fast-Fourier Transform (FFT), precoding, or constellation mapping/demapping functionality.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 204 can include convolution, tail- biting convolution, turbo, Viterbi, or Low Density Parity Check (LDPC) encoder/decoder functionality.
  • LDPC Low Density Parity Check
  • Embodiments of modulation/demodulation and encoder/decoder functionality are not limited to these examples and can include other suitable functionality in other embodiments.
  • the baseband circuitry 204 can include one or more audio digital signal processor(s) (DSP) 204F.
  • the audio DSP(s) 204F can be include elements for compression/decompression and echo cancellation and can include other suitable processing elements in other embodiments.
  • Components of the baseband circuitry can be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some embodiments.
  • some or all of the constituent components of the baseband circuitry 204 and the application circuitry 202 can be implemented together such as, for example, on a system on a chip (SOC).
  • SOC system on a chip
  • the baseband circuitry 204 can provide for communication compatible with one or more radio technologies.
  • the baseband circuitry 204 can support communication with an evolved universal terrestrial radio access network (EUTRAN) or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • RF circuitry 206 can enable communication with wireless networks
  • the RF circuitry 206 can include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • RF circuitry 206 can include a receive signal path which can include circuitry to down-convert RF signals received from the FEM circuitry 208 and provide baseband signals to the baseband circuitry 204.
  • RF circuitry 206 can also include a transmit signal path which can include circuitry to up- convert baseband signals provided by the baseband circuitry 204 and provide RF output signals to the FEM circuitry 208 for transmission.
  • the receive signal path of the RF circuitry 206 can include mixer circuitry 206a, amplifier circuitry 206b and filter circuitry 206c.
  • the transmit signal path of the RF circuitry 206 can include filter circuitry 206c and mixer circuitry 206a.
  • RF circuitry 206 can also include synthesizer circuitry 206d for synthesizing a frequency for use by the mixer circuitry 206a of the receive signal path and the transmit signal path.
  • the mixer circuitry 206a of the receive signal path can be configured to down-convert RF signals received from the FEM circuitry 208 based on the synthesized frequency provided by synthesizer circuitry 206d.
  • the amplifier circuitry 206b can be configured to amplify the down- converted signals and the filter circuitry 206c can be a low-pass filter (LPF) or bandpass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals.
  • Output baseband signals can be provided to the baseband circuitry 204 for further processing.
  • the output baseband signals can be zero-frequency baseband signals, although this is not a requirement.
  • mixer circuitry 206a of the receive signal path can comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 206a of the transmit signal path can be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 206d to generate RF output signals for the FEM circuitry 208.
  • the baseband signals can be provided by the baseband circuitry 204 and can be filtered by filter circuitry 206c.
  • the mixer circuitry 206a of the receive signal path and the mixer circuitry 206a of the transmit signal path can include two or more mixers and can be arranged for quadrature downconversion and upconversion, respectively.
  • the mixer circuitry 206a of the receive signal path and the mixer circuitry 206a of the transmit signal path can include two or more mixers and can be arranged for image rejection (e.g., Hartley image rejection).
  • the mixer circuitry 206a of the receive signal path and the mixer circuitry 206a can be arranged for direct downconversion and direct upconversion, respectively.
  • the mixer circuitry 206a of the receive signal path and the mixer circuitry 206a of the transmit signal path can be configured for super-heterodyne operation.
  • the output baseband signals and the input baseband signals can be analog baseband signals, although the scope of the embodiments is not limited in this respect.
  • the output baseband signals and the input baseband signals can be digital baseband signals.
  • the RF circuitry 206 can include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and the baseband circuitry 204 can include a digital baseband interface to communicate with the RF circuitry 206.
  • ADC analog-to-digital converter
  • DAC digital-to-analog converter
  • a separate radio IC circuitry can be provided for processing signals for each spectrum, although the scope of the
  • the synthesizer circuitry 206d can be a fractional-N synthesizer or a fractional N/N+1 synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers can be suitable.
  • synthesizer circuitry 206d can be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.
  • the synthesizer circuitry 206d can be configured to synthesize an output frequency for use by the mixer circuitry 206a of the RF circuitry 206 based on a frequency input and a divider control input.
  • the synthesizer circuitry 206d can be a fractional N/N+1 synthesizer.
  • frequency input can be provided by a voltage controlled oscillator (VCO), although that is not a requirement.
  • VCO voltage controlled oscillator
  • Divider control input can be provided by either the baseband circuitry 204 or the applications processor 202 depending on the desired output frequency.
  • a divider control input e.g., N
  • N can be determined from a look-up table based on a channel indicated by the applications processor 202.
  • Synthesizer circuitry 206d of the RF circuitry 206 can include a divider, a delay-locked loop (DLL), a multiplexer and a phase accumulator.
  • the divider can be a dual modulus divider (DMD) and the phase accumulator can be a digital phase accumulator (DPA).
  • the DMD can be configured to divide the input signal by either N or N+1 (e.g., based on a carry out) to provide a fractional division ratio.
  • the DLL can include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip- flop.
  • the delay elements can be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line.
  • Nd is the number of delay elements in the delay line.
  • synthesizer circuitry 206d can be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency can be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other.
  • the output frequency can be a LO frequency (fLO).
  • the RF circuitry 206 can include an IQ/polar converter.
  • FEM circuitry 208 can include a receive signal path which can include circuitry configured to operate on RF signals received from one or more antennas 210, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 206 for further processing.
  • FEM circuitry 208 can also include a transmit signal path which can include circuitry configured to amplify signals for transmission provided by the RF circuitry 206 for transmission by one or more of the one or more antennas 21 0.
  • the amplification through the transmit or receive signal paths can be done solely in the RF circuitry 206, solely in the FEM 208, or in both the RF circuitry 206 and the FEM 208.
  • the FEM circuitry 208 can include a TX/RX switch to switch between transmit mode and receive mode operation.
  • the FEM circuitry can include a receive signal path and a transmit signal path.
  • the receive signal path of the FEM circuitry can include an LNA to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 206).
  • the transmit signal path of the FEM circuitry 208 can include a power amplifier (PA) to amplify input RF signals (e.g., provided by RF circuitry 206), and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas 21 0).
  • PA power amplifier
  • the PMC 212 can manage power provided to the baseband circuitry 204.
  • the PMC 212 can control power-source selection, voltage scaling, battery charging, or DC-to-DC conversion.
  • the PMC 212 can often be included when the device 200 is capable of being powered by a battery, for example, when the device is included in a UE.
  • the PMC 21 2 can increase the power conversion efficiency while providing desirable implementation size and heat dissipation
  • FIG. 2 shows the PMC 212 coupled only with the baseband circuitry 204.
  • the PMC 2 12 can be additionally or alternatively coupled with, and perform similar power management operations for, other components such as, but not limited to, application circuitry 202, RF circuitry 206, or FEM 208.
  • the PMC 212 can control, or otherwise be part of, various power saving mechanisms of the device 200. For example, if the device 200 is in an RRC_Connected state, where it is still connected to the RAN node as it expects to receive traffic shortly, then it can enter a state known as Discontinuous Reception Mode (DRX) after a period of inactivity. During this state, the device 200 can power down for brief intervals of time and thus save power.
  • DRX Discontinuous Reception Mode
  • the device 200 can transition off to an RRCJdle state, where it disconnects from the network and does not perform operations such as channel quality feedback, handover, etc.
  • the device 200 goes into a very low power state and it performs paging where again it periodically wakes up to listen to the network and then powers down again.
  • the device 200 does not receive data in this state, in order to receive data, it transitions back to RRC_Connected state.
  • An additional power saving mode can allow a device to be unavailable to the network for periods longer than a paging interval (ranging from seconds to a few hours). During this time, the device can be unreachable to the network and can power down completely. Any data sent during this time can incur a large delay with the delay presumed to be acceptable.
  • Processors of the application circuitry 202 and processors of the baseband circuitry 204 can be used to execute elements of one or more instances of a protocol stack.
  • processors of the baseband circuitry 204 alone or in combination, can be used execute Layer 3, Layer 2, or Layer 1 functionality, while processors of the application circuitry 204 can utilize data (e.g., packet data) received from these layers and further execute Layer 4 functionality (e.g., transmission communication protocol (TCP) and user datagram protocol (UDP) layers).
  • Layer 3 can comprise a radio resource control (RRC) layer, described in further detail below.
  • RRC radio resource control
  • Layer 2 can comprise a medium access control (MAC) layer, a radio link control (RLC) layer, and a packet data convergence protocol (PDCP) layer, described in further detail below.
  • Layer 1 can comprise a physical (PHY) layer of a UE/RAN node.
  • PHY physical
  • the memory 204G can comprise one or more machine-readable medium / media including instructions that, when performed by a machine or component herein cause the machine to perform acts of the method or of an apparatus or system for concurrent communication using multiple communication technologies according to embodiments and examples described herein. It is to be understood that aspects described herein can be implemented by hardware, software, firmware, or any combination thereof. When implemented in software, functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium (e.g., the memory described herein or other storage device).
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media or a computer readable storage device can be any available media that can be accessed by a general purpose or special purpose computer.
  • Such computer-readable media can comprise RAM, ROM, EEPROM, CD- ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or other tangible and/or non-transitory medium, that can be used to carry or store desired information or executable instructions.
  • any connection can also be termed a computer-readable medium.
  • coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • the earlier network services like UMTS or 3G and predecessors (2G) configured a CS domain and a packet domain providing different services, especially CS services in the CS domain as well as voice services were considered to have a higher priority because consumers demanded an immediate response.
  • the device 200 could assign certain priority for the incoming transaction.
  • the UE e.g., 1 01 , 102, or device 200
  • the UE can get paging for a packet service without knowing any further information about the paging of the MT procedure, such as whether someone is calling on a line, a VoIP call, or just some packet utilized from Facebook, other application service, or other similar MT service.
  • a greater opportunity exists for further delays without the possibility for the UE to discriminate between the different application packets that could initiate a paging and also give a different priority to it based on one or more user preferences. This can could be important for the UE because the UE might be doing other tasks more vital for resource allocation.
  • a UE e.g., 101 , 102, or device 200
  • a background search for other PLMNs This is a task the UE device 200 could do in regular intervals if it is not connected on its own home PLMN or a higher priority PLMN, but roaming somewhere else.
  • a higher priority could be a home PLMN or some other PLMNs according to a list provided by the provider or subscriber (e.g., HSS 124).
  • the device 200 can be configured to connect or include multiple subscriber identity / identification module (SIM) cards / components, referred to as dual SIM or multi SIM devices.
  • SIM subscriber identity / identification module
  • the device 200 can operate with a single transmit and receive component that can coordinate between the different identities from which the SIM components are operating. As such, an incoming voice call should be responded to as fast as possible, while only an incoming packet for an application could be relatively ignored in order to utilize resources for the other identity (e.g., the voice call or SIM component) that is more important or has a higher priority from a priority list / data set / or set of user device preferences, for example.
  • This same scenario can also be utilized for other operations or incoming data, such as with a PLMN background search such as a manual PLMN search, which can last for a long period of time since, especially with a large number of different bands from 2G, etc.
  • a PLMN background search such as a manual PLMN search
  • the network devices can interpret this manual PLMN search to serve and ensure against a drop or loss of any increment voice call, with more frequent interruptions in particular.
  • a MT IMS voice call can be interpreted as "data" call as indicated in MT paging message and can be preceded by MT Circuit Switched (CS) paging of an other network or MO CS call initiated by user at same time.
  • CS Circuit Switched
  • 3GPP NW can provide further granular information about the kind of service the network is paging for.
  • the Paging cause parameter could indicate one of the following values / classes / categories: 1 ) IMS voice/video service; 2) IMS SMS service; 3) IMS other services (not voice/video/SMS-related; 4) any IMS service; 5) Other PS service (not IMS-related).
  • a network device e.g., an eNB or access point
  • IMS and non-IMS services could use 4 and 5
  • a network that is able to discriminate between different types of IMS services could use 3) instead of 4) to explicitly indicate to the UE that the paging is for an IMS service different from voice/video and SMS.
  • UE may decide to suspend PLMN search only for critical services like incoming voice/video services.
  • the UE 101 , 102, or device 200 can memorize that there was a paging to which it did not respond, and access the network later, when the PLMN search has been completed and the UE decides to stay on the current PLMN. For example, if the reason for the paging was a mobile terminating IMS SMS, the MME can then inform the HSS (e.g., 124) that the UE is reachable again, and the HSS 124 can initiate a signaling procedure which will result in a delivery of the SMS to the UE once resources are more available or less urgent for another operation / application / or category, for example. To this purpose the UE 101 , 102, or 200 could initiate a periodic tau area update (TAU) procedure if the service category in the Paging message indicated "IMS SMS service", for example.
  • TAU periodic tau area update
  • FIG. 3 illustrates example interfaces of baseband circuitry in accordance with some embodiments.
  • the baseband circuitry 204 of FIG. 2 can comprise processors 204A-204E and a memory 204G utilized by said processors.
  • Each of the processors 204A-204E can include a memory interface, 304A-304E, respectively, to send/receive data to/from the memory 204G.
  • the baseband circuitry 204 can further include one or more interfaces to communicatively couple to other circuitries/devices, such as a memory interface 312 (e.g., an interface to send/receive data to/from memory external to the baseband circuitry 204), an application circuitry interface 314 (e.g., an interface to send/receive data to/from the application circuitry 202 of FIG. 2), an RF circuitry interface 316 (e.g., an interface to send/receive data to/from RF circuitry 206 of FIG.
  • a memory interface 312 e.g., an interface to send/receive data to/from memory external to the baseband circuitry 204
  • an application circuitry interface 314 e.g., an interface to send/receive data to/from the application circuitry 202 of FIG. 2
  • an RF circuitry interface 316 e.g., an interface to send/receive data to/from RF circuitry 206 of FIG.
  • a wireless hardware connectivity interface 31 8 e.g., an interface to send/receive data to/from Near Field Communication (NFC) components, Bluetooth® components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and other communication components
  • a power management interface 320 e.g., an interface to send/receive power or control signals to / from the PMC 21 2.
  • FIG. 4 is a diagram illustrating an architecture of a system 400 for providing channel state information reference signals (CSI-RS) with broadcast data for beam selection for mobile communications in accordance with some embodiments.
  • the system or apparatus 400 can be utilized with the above embodiments and variations thereof, including the system 100 described above.
  • the system 400 is provided as an example and it is appreciated that suitable variations are contemplated.
  • the system 400 includes a network device 401 and a node 402.
  • the device 401 is shown as a UE device 401 and the node 402 is shown as gNB for illustrative purposes. It is appreciated that the UE device 401 can be other network devices, such as Aps, ANs and the like.
  • the gNB 402 can be other nodes or access nodes (ANs), such as BSs, eNB, gNB, RAN nodes and the like.
  • ANs access nodes
  • Other network or network devices can be present and interact with the device 401 and/or the node 402.
  • Operation of the UE 401 and the gNB 402 is performed by baseband circuitry, such as the baseband circuitry 204 described above.
  • Downlink (DL) transmissions occur from the gNB 402 to the UE 401 whereas uplink (UL) transmissions occur from the UE 401 to the gNB 402.
  • the downlink transmissions utilize a DL control channel and a DL data channel.
  • the uplink transmissions utilize an UL control channel and a UL data channel.
  • the various channels can be different in terms of direction, link to another gNB, eNB and the like.
  • the UE 401 is one of a set or group of UE devices assigned to or associated with a cell of the gNB 402.
  • the group of UE devices can maintain different gNB-UE beam pairs. Thus, it can be assumed that there is an existing or active gNB beam or beam pair with a UE within the group.
  • the gNB 402 generates reference signals to facilitate beam
  • the reference signals include channel state information reference signals (CSI-RS) for a plurality of antenna ports of the gNB 402.
  • CSI-RS channel state information reference signals
  • the gNB 402 transmits a signal or downlink channel at 406 that includes broadcast data.
  • the downlink channel can include data or broadcast data for an active gNB UE beam pair.
  • the downlink transmission/channel 406 can use a physical broadcast channel (PBCH), system information blocks (SIB), paging, and the like.
  • PBCH physical broadcast channel
  • SIB system information blocks
  • PDSCH physical downlink shared channel
  • the downlink channel 406 can also include other information, such as demodulation reference signals (DMRS) for the UE 401 and/or other UE devices within the group of UEs.
  • DMRS demodulation reference signals
  • the DMRS can utilize different and/or the same antenna ports used by the CSI-RS.
  • the DMRS can be of the broadcast data and at least some of the DMRS antenna ports can be quasi co-located with at least some of the antenna ports used for the CSI-RS.
  • the DMRS of the broadcast data can be generated based on a beam aggregated from beams of or used by the CSI-RS.
  • an antenna port index(es) of the CSI-RS for the aggregated beam can predefined or configured by higher layer signaling or determined by a slot/subframe/frame index.
  • the downlink channel 406 is received by the UE 401 and can be received by the group of UE devices.
  • the UE 401 performs channel estimation and/or determines beam quality at 408 using the one or more CSI-RS to generate channel state information (CSI) and/or beam quality.
  • CSI channel state information
  • the CSI-RS can be for particular antenna ports and/or elements of an antenna array.
  • the channel estimation is performed for and/or based on the plurality of antenna ports.
  • the UE 401 can also generate other factors or measures of beam quality based on the CSI-RS.
  • the UE 401 generates channel feedback as channel state information (CSI) and/or the beam quality and provides the channel feedback at 410.
  • CSI channel state information
  • the UE 401 can also use the CSI- RS for demodulation and/or decoding the broadcast data.
  • the UE 401 uses only the CSI-RS to decode the broadcast data to obtain the broadcast data.
  • the UE 401 uses the DMRS to demodulate or decode the broadcast data to obtain the broadcast data.
  • the UE 401 measures beam quality based on the CSI-RS and the DMRS of the broadcast data.
  • the gNB 402 and/or the UE 401 use the CSI to perform beamforming, beam selection, an initial beam or initial beam pair selection and the like for the gNB 402 and the UE 401 at 412.
  • the beam selection and the like can be performed for downlink and/or uplink transmissions.
  • the initial beam selection can involve using the CSI to generate weights or weighting factors for the plurality of antenna ports.
  • an initial beam is selected at 412 based on the channel feedback.
  • the gNB 402 can determines data resources for the UE 401 based on the channel feedback, channel information, resource availability, and the like as additional factors in addition to the CSI.
  • the data resources for the UE 401 can vary based on types of transmissions (DL or UL), channel availability, resource availability (frequency and time), amount of data, requested data rate for the UE 401 , and the like.
  • the data resources can be in the form of resource block (RBs), physical resource blocks (PRBs) and the like.
  • the gNB 402 can determine bandwidth amounts or bandwidth(s) for the CSI-RS and/or DMRS.
  • the determined bandwidths can vary from predetermined bandwidths, preconfigured and/or configured via signaling, such as RRC signaling.
  • the determine bandwidth for the CSI-RS is less than a preconfigured or configured bandwidth.
  • the gNB 402 can generate control information regarding the selected initial beam and transmit the control information at 414.
  • the gNB 402 generates and transmits the downlink channel having CSI-RS and broadcast data.
  • the downlink channel can be formatted or arranging in a variety of ways to provide the CSI-RS with the broadcast data. This formatting or inclusion of the CSI-RS with broadcast data and/or DMRS is referred to as mapping or reference signal mapping and/or a reference signal structure.
  • the CSI-RS can be periodically transmitted with a same or different periods with broadcast data.
  • a length for the periods can be pre-defined and/or configured by higher layer signaling.
  • the number of the plurality of antenna ports for the CSI-RS and/or DMRS can be pre-defined and/or configured by higher layer signaling.
  • the CSI-RS received by the UE device 401 can be used to facilitate demodulation of the broadcast data.
  • a density of the CSI-RS can be low while a density of the DMRS is high.
  • the CSI-RS can be used for decoding of some resource blocks (RBs) and/or resource elements (REs).
  • the DMRS can be used the UE device 401 to decode remaining RBs and/or REs.
  • the mapping of RBs or REs to contain the CSI-RS and/or the DMRS can be pre-defined or configured by higher layer signaling.
  • Other information providing with the downlink channel 406 and/or provided by signaling can include quasi co-located (QCL) information.
  • the QCL includes antenna location information that can be used by the UE 401 to determine transmission points of the CSI-RS and the like.
  • the QCL information can indicate a set of reference signals and corresponding antenna ports that experience the same propagation (those that belong to the same transmission point (TP)).
  • two antenna ports are said to be quasi co-located (QCL) if large scale properties of the channel over which a symbol on one antenna port is conveyed can be inferred from the channel over which a symbol an the other antenna port is conveyed.
  • the large scale properties include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and the like.
  • FIG. 5 is a diagram illustrating a downlink transmission 500 utilizing resource reference signal mapping for an architecture in accordance with some embodiments.
  • the transmission 500 is generated and formatted at a base station or node, such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a base station or node such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a pattern or format is used for the transmission 500.
  • the pattern includes reference signals, which include demodulation reference signals (DMRS) and CSI-RS.
  • DMRS demodulation reference signals
  • CSI-RS are associated with antenna ports "x" (APx)
  • APx antenna ports "x"
  • CSI-RS are associated with antenna ports "y" (APy).
  • An x-axis depicts frequency.
  • BEAM1 and BEAM2 can be a frame or resource block.
  • the BEAM1 shown at 501 includes CSI-RS within various resource elements (REs) for APy and shown as CSI-RS RE APy.
  • the REs that include the CSI-RS are designated for APy, shown as antenna ports 2-9 in this example.
  • the CSI-RS can be used by a receiving node, such as a UE device, for decoding, such as decoding a PDCCH and the like.
  • the BEAM2, shown at 502 includes DMRS for APx.
  • the BEAM2 has REs that include DMRS as indicated by DMRS RE APx. In this example, they designated for APx, shown as antenna ports 0 and 1 , in this example.
  • each antenna port (AP) of DMRS its beam can be generated based on the beam applied to CSI-RS and it can be given by:
  • the set S can be pre-defined or configured via higher layer signaling.
  • the size of S can be pre-defined or configured via higher layer signaling.
  • the index of S can be pre-defined or determined by the slot/subframe/frame index. For example, if the size of S is 2, then the beam of DMRS antenna port (AP 0) can be generated based on the beams in antenna port (AP) ⁇ 2, 3 ⁇ , ⁇ 4, 5 ⁇ , in turns.
  • FIG. 6 is a diagram illustrating a downlink transmission 600 utilizing reference signal resource mapping for an architecture in accordance with some embodiments.
  • the transmission 600 is generated and formatted at a base station or node, such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a base station or node such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a pattern or format is used for the transmission 600.
  • the pattern includes reference signals, which include DMRS and CSI-RS.
  • the DMRS are associated with antenna ports "x" (APx) and the CSI-RS are associated with antenna ports "y” (APy).
  • the pattern is similar to that shown with regard to FIG. 5, however the transmission pattern 600 allows for a plurality of slots that can include both DMRS and CSI-RS.
  • An x-axis depicts frequency.
  • BEAM1 and BEAM2 Various beams are depicted along the x-axis as shown. There are two types of beams in this example, BEAM1 and BEAM2.
  • the BEAM1 includes CSI-RS and the BEAM2 includes DMRS.
  • the BEAM1 and BEAM2 can be a frame or resource block.
  • the resource blocks (RBs) where the CSI-RS are located can be transmitted for one polarization in one example.
  • the CSI-RS can be quasi-co-located with an antenna port (AP) of DMRS and the DMRS can be transmitted in an other polarization or an other AP.
  • AP antenna port
  • two polarizations can be used in turns.
  • the DMRS can be used for channel estimation for one polarization and the CSI-RS can be used to estimate a channel for an other polarization.
  • the BEAM2, shown at 602 includes DMRS for APx.
  • the BEAM2 has REs that include DMRS as indicated by DMRS RE APx. In this example, they designated for APx, shown as antenna ports 0 and 1 , in this example.
  • the BEAM1 shown at 601 includes CSI-RS within various resource elements (REs) for APy AND APx within a plurality of slots, shown as SLT n to SLT n+1 . Each slot includes resource elements for DMRS and CSI-RS.
  • the DMRS can be used for channel estimation for one polarization and the CSI-RS can be used for channel estimation of an other polarization.
  • DMRS are included for APx of ⁇ 0, 1 ⁇ and CSI- RS are included for APy of ⁇ 2, 3, 4, 5 ⁇ in SLT n and for APy of ⁇ 6, 7, 8, 9 ⁇ in SLT n+1 .
  • each antenna port (AP) of DMRS its beam can be generated based on the beam applied to CSI-RS and it can be given by Eq (1 ), shown above.
  • the BEAM2 includes a plurality of slots, where each slot can include CSI-RS for different antenna ports.
  • FIGs. 7A and 7B depict various modes of resource mapping.
  • FIG. 7A is a diagram illustrating a downlink transmission 700 utilizing localized resource mapping for an architecture in accordance with some embodiments.
  • the transmission 700 is generated and formatted at a base station or node, such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a base station or node such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a pattern or format is used for the transmission 700.
  • the pattern includes reference signals, which include DMRS and CSI-RS.
  • the DMRS are associated with antenna ports "x" (APx) and the CSI-RS are associated with antenna ports "y” (APy).
  • the pattern also includes DMRS associated with antenna ports "z” (APz).
  • An x-axis depicts frequency.
  • BEAM1 Various localized beams are depicted along the x-axis as shown. There are four types of beams in this example, BEAM1 , BEAM2, BEAM3 and BEAM4.
  • BEAM 4 includes CSI-RS and BEAM1 includes DMRS.
  • the beams are localized in that there are four beams of type BEAM1 , four of type BEAM2, four of type BEAM3 and then four of type BEAM4.
  • a beam 701 of type BEAM1 is shown including DMRS.
  • the beam 701 includes resource elements (REs) for APx, where APx includes antenna ports ⁇ 0, 1 ⁇ .
  • the REs include DMRS for the respective antenna ports as shown.
  • a beam 702 of type BEAM4 is shown including CSI-RS.
  • the beam 702 includes resource elements (REs) for APy, where APy includes antenna ports ⁇ 6, 7 ⁇ in this example.
  • the REs include CSI-RS for the indicated antenna ports ⁇ 6, 7 ⁇ .
  • each antenna port (AP) of DMRS its beam can be generated based on the beam applied to CSI-RS and it can be given by Eq (1 ), shown above.
  • the BEAM2 includes a plurality of slots, where each slot can include CSI-RS for different antenna ports.
  • the subcarrier spacing can be configured to vary from normal subcarrier spacing, such as being x times a normal subcarrier spacing.
  • the alternative subcarrier spacing can be pre-defined, configured by higher layer signaling, and the like.
  • the symbol duration can be relatively small and each symbol can only be associated with or for two antenna ports (APs).
  • the alternative subcarrier spacing can reduce overhead, such as reducing overhead for a gNB that has limited antenna panels.
  • the CSI-RS can be transmitted in a first symbol, where different antenna ports can be mapped in a frequency division multiplexing (FDM) manner, or based on an IFDMA structure, then followed by broadcasting data.
  • the UE can use CSI-RS for antenna ports (Aps) ⁇ x, y ⁇ to decode a broadcasting in one symbol, where ⁇ x, y ⁇ can be predefined or configured by higher layer signaling.
  • FIG. 7B is a diagram illustrating a downlink transmission 703 utilizing distributed resource mapping for an architecture in accordance with some
  • the transmission 703 is generated and formatted at a base station or node, such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a base station or node such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a pattern or format is used for the transmission 703.
  • the pattern includes reference signals, which include DMRS and CSI-RS.
  • the DMRS are associated with antenna ports "x" (APx) and the CSI-RS are associated with antenna ports "y” (APy).
  • the pattern also includes DMRS associated with antenna ports "z” (APz).
  • An x-axis depicts frequency.
  • a beam 704 of type BEAM1 is shown including DMRS.
  • the beam 701 includes resource elements (REs) for APx, where APx includes antenna ports ⁇ 0, 1 ⁇ .
  • the REs include DMRS for the respective antenna ports as shown.
  • a beam 705 of type BEAM4 is shown including CSI-RS.
  • the beam 702 includes resource elements (REs) for APy, where APy includes antenna ports ⁇ 6, 7 ⁇ in this example.
  • the REs include CSI-RS for the indicated antenna ports ⁇ 6, 7 ⁇ .
  • each antenna port (AP) of DMRS its beam can be generated based on the beam applied to CSI-RS and it can be given by Eq (1 ), shown above.
  • the BEAM2 includes a plurality of slots, where each slot can include CSI-RS for different antenna ports.
  • the subcarrier spacing can be configured to vary from normal subcarrier spacing, such as being x times a normal subcarrier spacing.
  • the alternative subcarrier spacing can be pre-defined, configured by higher layer signaling, and the like.
  • the symbol duration can be relatively small and each symbol can only be associated with or for two antenna ports (APs).
  • the alternative subcarrier spacing can reduce overhead, such as reducing overhead for a gNB that has limited antenna panels.
  • the CSI-RS can be transmitted in a first symbol, where different antenna ports can be mapped in a frequency division multiplexing (FDM) manner, or based on an interleaved frequency division multiple access (IFDMA) structure, then followed by broadcasting data.
  • FDM frequency division multiplexing
  • IFDMA interleaved frequency division multiple access
  • the UE can use CSI-RS for APs ⁇ x, y ⁇ to decode a broadcasting in one symbol, where ⁇ x, y ⁇ can be pre-defined or configured by higher layer signaling.
  • a UE device can process the CSI-RS for one beam and then the DMRS for a second beam instead of processing CSI-RS for multiple, localized beams in a row, as shown with FIG. 7A.
  • FIG. 8 is a diagram illustrating a downlink transmission 800 utilizing interleaved resource mapping for an architecture in accordance with some
  • the transmission 800 is generated and formatted at a base station or node, such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a base station or node such as an eNB, gNB, network node, and the like for communication or interaction with another node.
  • a pattern or format is used for the transmission 800.
  • the pattern includes reference signals, which include CSI-RS and DMRS or broadcast data.
  • the DMRS if present, is associated with antenna ports "x" (APx) and the CSI-RS are associated with antenna ports "y” (APy).
  • the pattern also includes DMRS associated with antenna ports "z” (APz).
  • An x-axis depicts frequency
  • the CSI-RS can be used for measurement only, in one example.
  • the CSI- RS can be mapped based on an IFDMA structure.
  • a UE device can use different receive (Rx) beams to different time domain repetition, which can be generated from/by IFDMA based CSI-RS.
  • the transmission is shown with CSI-RS resource elements (REs) associated with antenna ports "x" (APx) and a second REs 81 0.
  • the second REs 81 0 can include broadcast data and/or DMRS.
  • the resource elements (REs) are part of one or more beams of the downlink transmission 800.
  • the transmission 800 includes four sections, 801 , 802, 803, and 804.
  • the transmission interleaves a RE having CSI-RS for APx with other REs.
  • the CSI-RS REs can be interleaved with broadcast data and/or other reference signals, such as DMRS.
  • FIG. 9 is a flow diagram illustrating a method 900 of providing reference signals with broadcast data in accordance with some embodiments.
  • the method 900 facilitates communication and resource allocation for one or more user equipment (UE) devices or nodes.
  • the nodes can be associated with a cell and a base station or other node.
  • the method or process 900 is described with reference to a UE device and a node (gNB), however it is appreciated that other device and/or nodes can be used.
  • the node can be other types of nodes, such as an eNB, gNB and the like.
  • the method 900 can be implemented using the above systems, arrangements and variations thereof using circuitry, such as the baseband circuitry 204.
  • the gNB generates channel state information reference signals (CSI-RS) for a plurality of antenna ports at block 902.
  • CSI-RS channel state information reference signals
  • the gNB generates a downlink channel having the plurality of CSI-RS and broadcast data at block 904.
  • the downlink channel is transmitted using a physical channel, such as a physical broadcast channel (PBCH) and the like.
  • PBCH physical broadcast channel
  • the gNB can also generate DMRS for the plurality of antenna ports and/or different antenna ports and include the DMRS with the downlink channel.
  • the reference signal mapping for the downlink channel maps the CSI-RS with the broadcast data and/or DMRS, as shown above.
  • the UE device receives the downlink transmission and obtains the CSI-RS at block 906.
  • the location or mapping of the CSI-RS can be pre-configured or provided by signaling.
  • the UE device performed channel estimation for the plurality of antenna ports using the CSI-RS at block 908 to generate channel state information (CSI).
  • the channel state information (CSI) is based on the received CSI-RS and the plurality of antenna ports.
  • the CSI can represent or include a strength of received CSI-RS for the plurality of antenna ports.
  • the UE device provides the CSI as feedback at block 910.
  • the gNB performs initial beam selection based on the channel feedback at
  • the method 900 can be repeated and/or re-utilized for additional channels, beam selection, additional data and the like. It is appreciated that suitable variations of the method 900 are contemplated.
  • circuitry may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • circuitry may include logic, at least partially operable in hardware.
  • processor can refer to substantially any computing processing unit or device including, but not limited to including, single-core processors; single-processors with software multithread execution capability; multi-core processors; multi-core processors with software multithread execution capability; multi-core processors with hardware multithread technology;
  • a processor can refer to an integrated circuit, an application specific integrated circuit, a digital signal processor, a field programmable gate array, a programmable logic controller, a complex programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions and/or processes described herein.
  • Processors can exploit nano-scale architectures such as, but not limited to, molecular and quantum-dot based transistors, switches and gates, in order to optimize space usage or enhance performance of mobile devices.
  • a processor may also be implemented as a combination of computing processing units.
  • memory components or entities embodied in a “memory,” or components including the memory. It is noted that the memory components described herein can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory.
  • nonvolatile memory for example, can be included in a memory, non-volatile memory (see below), disk storage (see below), and memory storage (see below). Further, nonvolatile memory can be included in read only memory, programmable read only memory, electrically programmable read only memory, electrically erasable programmable read only memory, or flash memory.
  • Volatile memory can include random access memory, which acts as external cache memory.
  • random access memory is available in many forms such as synchronous random access memory, dynamic random access memory, synchronous dynamic random access memory, double data rate synchronous dynamic random access memory, enhanced synchronous dynamic random access memory, Synchlink dynamic random access memory, and direct Rambus random access memory.
  • the disclosed memory components of systems or methods herein are intended to include, without being limited to including, these and any other suitable types of memory.
  • Examples can include subject matter such as a method, means for performing acts or blocks of the method, at least one machine-readable medium including instructions that, when performed by a machine cause the machine to perform acts of the method or of an apparatus or system for concurrent communication using multiple communication technologies according to embodiments and examples described herein.
  • Example 1 is an apparatus configured to be employed within a base station.
  • the apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors.
  • the one or more processors are configured to generate channel state information reference signals (CSI-RS) for a plurality of antenna ports, generate broadcast data, generate a downlink channel having the CSI-RS and the broadcast data, and provide the generated downlink channel to the RF interface for a downlink transmission to one or more user equipment (UE) devices.
  • CSI-RS channel state information reference signals
  • Example 2 includes the subject matter of Example 1 , including or omitting optional elements, wherein the one or more processors are configured to generate a demodulation reference signal (DMRS) for the broadcast data using a second plurality of antenna ports and generate the downlink channel additionally having the DMRS.
  • DMRS demodulation reference signal
  • Example 3 includes the subject matter of any of Examples 1 -2, including or omitting optional elements, wherein the one or more processors are further configured to generate the CSI-RS based on channel state information (CSI) from the one or more UE devices.
  • CSI channel state information
  • Example 4 includes the subject matter of any of Examples 1 -3, including or omitting optional elements, wherein the broadcast data includes one or more of a master information block (MIB), a system information block (SIB), a paging control, or a paging message.
  • MIB master information block
  • SIB system information block
  • paging control paging control
  • Example 5 includes the subject matter of any of Examples 1 -4, including or omitting optional elements, wherein the one or more processors are further configured to generate the CSI-RS to facilitate decoding of the broadcast data at the one or more UE devices.
  • Example 6 includes the subject matter of any of Examples 1 -5, including or omitting optional elements, wherein the one or more processors are configured to generate a demodulation reference signal (DMRS) based on a beam aggregated from a plurality of beams for the CSI-RS using an aggregated factor.
  • DMRS demodulation reference signal
  • Example 7 includes the subject matter of any of Examples 1 -6, including or omitting optional elements, wherein the aggregated factor is predefined or configured by higher layer signaling.
  • Example 8 includes the subject matter of any of Examples 1 -7, including or omitting optional elements, wherein the aggregated beam is based on an antenna port index for the CSI-RS, wherein the antenna port index references the plurality of antenna ports.
  • Example 9 includes the subject matter of any of Examples 1 -8, including or omitting optional elements, wherein a first antenna port of the plurality of antenna ports is used for a CSI-RS resource and a second antenna port of the second plurality of antenna ports is used for the DMRS and the first and second antenna ports are quasi- co-located (QCL).
  • QCL quasi- co-located
  • Example 10 includes the subject matter of any of Examples 1 -9, including or omitting optional elements, wherein the QCL is predefined and/or configured by radio resource control (RRC) signaling.
  • RRC radio resource control
  • Example 1 1 includes the subject matter of any of Examples 1 -1 0, including or omitting optional elements, wherein the CSI-RS and the broadcast data are mapped to the downlink channel using frequency division multiplexing (FDM) or time division multiplexing (TDM).
  • FDM frequency division multiplexing
  • TDM time division multiplexing
  • Example 12 includes the subject matter of any of Examples 1 -1 1 , including or omitting optional elements, wherein the generated downlink channel includes resource elements for the CSI-RS interleaved with broadcast data resource elements.
  • Example 13 includes the subject matter of any of Examples 1 -1 2, including or omitting optional elements, wherein the one or more processors generate the downlink channel based on an interleaved frequency division multiple access (IFDMA).
  • IFDMA interleaved frequency division multiple access
  • Example 14 is an apparatus configured to be employed within a user equipment (UE) device comprising baseband circuitry.
  • the baseband circuitry includes a radio frequency (RF) interface and one or more processors.
  • the RF interface is configured to receive a downlink channel having one or more reference signals and broadcast data from a base station, wherein the one or more reference signals are channel state information reference signals (CSI-RS).
  • the one or more processors are configured obtain one or more reference signals from the downlink channel, generate channel feedback based on the one or more reference signals, provide the channel feedback to the RF interface for transmission to the base station and obtain the broadcast data from the downlink channel using the one or more reference signals.
  • CSI-RS channel state information reference signals
  • Example 15 includes the subject matter of Example 14, including or omitting optional elements, wherein the one or more processors are configured to use beam sweeping to receive repetitions of the CSI-RS.
  • Example 16 includes the subject matter of any of Examples 14-15, including or omitting optional elements, wherein the one or more processors are configured to measure channel state information (CSI) and/or beam quality using the CSI-RS to generate the channel feedback.
  • CSI channel state information
  • Example 17 includes the subject matter of any of Examples 14-16, including or omitting optional elements, wherein the one or more processors are configured to decode the broadcast data from the downlink channel using only the CSI-RS.
  • Example 18 includes the subject matter of any of Examples 14-17, including or omitting optional elements, wherein the one or more processors are configured to decode the broadcast data from the downlink channel using only the CSI-RS and DMRS.
  • Example 19 includes the subject matter of any of Examples 14-18, including or omitting optional elements, wherein the one or more reference signals include demodulation reference signals (DMRS) and wherein the one or more processors are configured to determine whether a first antenna port for the CSI-RS and a second antenna port for the DMRS are quasi-co-located (QCL).
  • DMRS demodulation reference signals
  • QCL quasi-co-located
  • Example 20 is one or more computer-readable media having instructions that, when executed, cause a base station to generate channel state information reference signals (CSI-RS) for a plurality of antenna ports; generate demodulation reference signals (DMRS) for broadcast data; and generate a downlink channel having the CSI- RS, the DMRS and the broadcast data for one or more user equipment (UE) devices.
  • CSI-RS channel state information reference signals
  • DMRS demodulation reference signals
  • Example 21 includes the subject matter of Example 20, including or omitting optional elements, wherein the instructions, when executed, further cause the base station to assign the CSI-RS to a first plurality of resource elements associated with a first plurality of antenna ports and assign the DMRS to a second plurality of resource elements associated with a second plurality of antenna ports.
  • Example 22 includes the subject matter of any of Examples 20-21 , including or omitting optional elements, wherein the instructions, when executed, further cause the base station to transmit the downlink channel and select an initial beam based on channel feedback.
  • Example 23 is an apparatus configured to be employed within a user equipment (UE) device.
  • the apparatus includes a means to receive a downlink transmission; a means to obtain one or more reference signals from the downlink transmission; a means to measure channel state information (CSI) and/or beam quality based on the one or more reference signals; and a means to decode broadcast data from the downlink channel using the one or more reference signals.
  • UE user equipment
  • Example 24 includes the subject matter of Example 23, including or omitting optional elements, further comprising a means to decode allocate a first bandwidth for a first reference signal, wherein the first bandwidth is less than a preconfigured bandwidth.
  • Example 25 includes the subject matter of any of Examples 23-24, including or omitting optional elements, further comprising a means to preconfigure the preconfigured bandwidth using radio resource control (RRC) signaling.
  • RRC radio resource control
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media or a computer readable storage device can be any available media that can be accessed by a general purpose or special purpose computer.
  • such computer-readable media can comprise RAM, ROM, EEPROM, CD- ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or other tangible and/or non-transitory medium, that can be used to carry or store desired information or executable instructions.
  • any connection is properly termed a computer-readable medium.
  • a computer-readable medium includes 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.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor can be a microprocessor, but, in the alternative, processor can be any conventional processor, controller, microcontroller, or state machine.
  • a processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. Additionally, at least one processor can comprise one or more modules operable to perform one or more of the s and/or actions described herein.
  • modules e.g., procedures, functions, and so on
  • Software codes can be stored in memory units and executed by processors.
  • Memory unit can be implemented within processor or external to processor, in which case memory unit can be communicatively coupled to processor through various means as is known in the art.
  • at least one processor can include one or more modules operable to perform functions described herein.
  • a CDMA system can implement a radio technology such as Universal Terrestrial Radio Access (UTRA), CDMA1800, etc.
  • UTRA includes Wideband-CDMA (W-CDMA) and other variants of CDMA.
  • W-CDMA Wideband-CDMA
  • CDMA1800 covers IS-1800, IS-95 and IS-856 standards.
  • a TDMA system can implement a radio technology such as Global System for Mobile
  • GSM Global System for Mobile Communications
  • E-UTRA Evolved UTRA
  • UMB Ultra Mobile Broadband
  • Wi-Fi IEEE 802.1 1
  • WiMAX IEEE 802.16
  • IEEE 802.18, Flash-OFDM etc.
  • UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS).
  • 3GPP Long Term Evolution (LTE) is a release of UMTS that uses E-UTRA, which employs OFDMA on downlink and SC-FDMA on uplink.
  • UTRA, E-UTRA, UMTS, LTE and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP).
  • CDMA1 800 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).
  • 3GPP2 3rd Generation Partnership Project 2
  • such wireless communication systems can additionally include peer-to-peer (e.g., mobile-to-mobile) ad hoc network systems often using unpaired unlicensed spectrums, 802. xx wireless LAN, BLUETOOTH and any other short- or long- range, wireless communication techniques.
  • SC-FDMA Single carrier frequency division multiple access
  • SC-FDMA has similar performance and essentially a similar overall complexity as those of OFDMA system.
  • SC-FDMA signal has lower peak-to-average power ratio (PAPR) because of its inherent single carrier structure.
  • PAPR peak-to-average power ratio
  • SC-FDMA can be utilized in uplink communications where lower PAPR can benefit a mobile terminal in terms of transmit power efficiency.
  • various aspects or features described herein can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques.
  • article of manufacture as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media.
  • computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., compact disk (CD), digital versatile disk (DVD), etc.), smart cards, and flash memory devices (e.g., EPROM, card, stick, key drive, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.
  • a computer program product can include a computer readable medium having one or more instructions or codes operable to cause a computer to perform functions described herein.
  • Communications media embody computer-readable instructions, data structures, program modules or other structured or unstructured data in a data signal such as a modulated data signal, e.g., a carrier wave or other transport mechanism, and includes any information delivery or transport media.
  • modulated data signal or signals refers to a signal that has one or more of its characteristics set or changed in such a manner as to encode information in one or more signals.
  • communication media include wired media, such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared and other wireless media.
  • a software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
  • An exemplary storage medium can be coupled to processor, such that processor can read information from, and write information to, storage medium.
  • storage medium can be integral to processor.
  • processor and storage medium can reside in an ASIC.
  • ASIC can reside in a user terminal.
  • processor and storage medium can reside as discrete components in a user terminal.
  • the s and/or actions of a method or algorithm can reside as one or any combination or set of codes and/or instructions on a machine-readable medium and/or computer readable medium, which can be incorporated into a computer program product.

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Abstract

L'invention concerne un appareil configuré pour être utilisé dans une station de base. L'appareil comprend un ensemble de circuits de bande de base qui comprend une interface radiofréquence (RF) et un ou plusieurs processeurs. Le ou les processeurs sont configurés pour générer des signaux de référence d'informations d'état de canal (CSI-RS) pour une pluralité de ports d'antenne, pour générer des données de diffusion, pour générer un canal de liaison descendante ayant les CSI-RS et les données de diffusion, et pour fournir le canal de liaison descendante généré à l'interface RF pour une transmission de liaison descendante à un ou plusieurs dispositifs d'équipement utilisateur (UE).
EP17847748.5A 2017-01-09 2017-12-29 Acquisition de faisceau à l'aide d'une structure de signal de référence pour systèmes de communication Withdrawn EP3566527A1 (fr)

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US20220330038A1 (en) * 2019-09-05 2022-10-13 Lenovo (Singapore) Pte. Ltd. Determining an antenna panel for sidelink transmission
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