WO2022056662A1 - Procédés et appareil de vr/ar en nr-dc - Google Patents

Procédés et appareil de vr/ar en nr-dc Download PDF

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Publication number
WO2022056662A1
WO2022056662A1 PCT/CN2020/115265 CN2020115265W WO2022056662A1 WO 2022056662 A1 WO2022056662 A1 WO 2022056662A1 CN 2020115265 W CN2020115265 W CN 2020115265W WO 2022056662 A1 WO2022056662 A1 WO 2022056662A1
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WIPO (PCT)
Prior art keywords
encoded video
eye view
video layer
layer stream
view encoded
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PCT/CN2020/115265
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English (en)
Inventor
Nan Zhang
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Qualcomm Incorporated
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Priority to PCT/CN2020/115265 priority Critical patent/WO2022056662A1/fr
Publication of WO2022056662A1 publication Critical patent/WO2022056662A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections

Definitions

  • the present disclosure relates generally to communication systems, and more particularly, to methods and apparatus for providing virtual reality (VR) and/or augmented reality (AR) in new radio dual connectivity (NR-DC) .
  • VR virtual reality
  • AR augmented reality
  • NR-DC new radio dual connectivity
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • TD-SCDMA time division synchronous code division multiple access
  • 5G New Radio is part of a continuous mobile broadband evolution promulgated by Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with Internet of Things (IoT) ) , and other requirements.
  • 3GPP Third Generation Partnership Project
  • 5G NR includes services associated with enhanced mobile broadband (eMBB) , massive machine type communications (mMTC) , and ultra-reliable low latency communications (URLLC) .
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable low latency communications
  • Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard.
  • LTE Long Term Evolution
  • a user equipment may receive a left-eye view encoded video layer stream through a first quality of service (QoS) flow and a right-eye view encoded video layer stream through a second QoS flow.
  • the UE may send one or more of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to at least one display of the UE to display the one or more of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to a user of the UE.
  • QoS quality of service
  • the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims.
  • the following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.
  • FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network.
  • FIG. 2A is a diagram illustrating an example of a first frame, in accordance with various aspects of the present disclosure.
  • FIG. 2B is a diagram illustrating an example of DL channels within a subframe, in accordance with various aspects of the present disclosure.
  • FIG. 2C is a diagram illustrating an example of a second frame, in accordance with various aspects of the present disclosure.
  • FIG. 2D is a diagram illustrating an example of UL channels within a subframe, in accordance with various aspects of the present disclosure.
  • FIG. 3 is a diagram illustrating an example of a base station and user equipment (UE) in an access network.
  • UE user equipment
  • FIG. 4 is a call-flow diagram of wireless communication
  • FIG. 5 is a flowchart of a method of wireless communication.
  • FIG. 6 is a diagram illustrating an example of a hardware implementation for an example apparatus.
  • FIG. 7 is a flowchart of a method of wireless communication.
  • FIG. 8 is a diagram illustrating an example of a hardware implementation for an example apparatus.
  • processors include microprocessors, microcontrollers, graphics processing units (GPUs) , central processing units (CPUs) , application processors, digital signal processors (DSPs) , reduced instruction set computing (RISC) processors, systems on a chip (SoC) , baseband processors, field programmable gate arrays (FPGAs) , programmable logic devices (PLDs) , state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionality described throughout this disclosure.
  • processors in the processing system may execute software.
  • Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes computer storage media. Storage media may be any available media that can be accessed by a computer.
  • such computer-readable media can comprise a random-access memory (RAM) , a read-only memory (ROM) , an electrically erasable programmable ROM (EEPROM) , optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of the aforementioned types of computer-readable media, or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable ROM
  • optical disk storage magnetic disk storage
  • magnetic disk storage other magnetic storage devices
  • combinations of the aforementioned types of computer-readable media or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer.
  • FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network 100.
  • the wireless communications system (also referred to as a wireless wide area network (WWAN) ) includes base stations 102, UEs 104, an Evolved Packet Core (EPC) 160, and another core network 190 (e.g., a 5G Core (5GC) ) .
  • the base stations 102 may include macrocells (high power cellular base station) and/or small cells (low power cellular base station) .
  • the macrocells include base stations.
  • the small cells include femtocells, picocells, and microcells.
  • the base stations 102 configured for 4G LTE may interface with the EPC 160 through first backhaul links 132 (e.g., S1 interface) .
  • the base stations 102 configured for 5G NR may interface with core network 190 through second backhaul links 184.
  • the base stations 102 may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity) , inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS) , subscriber and equipment trace, RAN information management (RIM) , paging, positioning, and delivery of warning messages.
  • NAS non-access stratum
  • RAN radio access network
  • MBMS multimedia broadcast multicast service
  • RIM RAN information management
  • the base stations 102 may communicate directly or indirectly (e.g., through the EPC 160 or core network 190) with each other over third backhaul links 134 (e.g., X2 interface) .
  • the first backhaul links 132, the second backhaul links 184, and the third backhaul links 134 may be wired or wireless.
  • the base stations 102 may wirelessly communicate with the UEs 104. Each of the base stations 102 may provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, the small cell 102' may have a coverage area 110' that overlaps the coverage area 110 of one or more macro base stations 102.
  • a network that includes both small cell and macrocells may be known as a heterogeneous network.
  • a heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs) , which may provide service to a restricted group known as a closed subscriber group (CSG) .
  • eNBs Home Evolved Node Bs
  • HeNBs Home Evolved Node Bs
  • CSG closed subscriber group
  • the communication links 120 between the base stations 102 and the UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from a UE 104 to a base station 102 and/or downlink (DL) (also referred to as forward link) transmissions from a base station 102 to a UE 104.
  • the communication links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity.
  • the communication links may be through one or more carriers.
  • the base stations 102/UEs 104 may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc.
  • the component carriers may include a primary component carrier and one or more secondary component carriers.
  • a primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell) .
  • D2D communication link 158 may use the DL/UL WWAN spectrum.
  • the D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH) , a physical sidelink discovery channel (PSDCH) , a physical sidelink shared channel (PSSCH) , and a physical sidelink control channel (PSCCH) .
  • D2D communication may be through a variety of wireless D2D communications systems, such as for example, WiMedia, Bluetooth, ZigBe
  • the wireless communications system may further include a Wi-Fi access point (AP) 150 in communication with Wi-Fi stations (STAs) 152 via communication links 154, e.g., in a 5 GHz unlicensed frequency spectrum or the like.
  • AP Wi-Fi access point
  • STAs Wi-Fi stations
  • communication links 154 e.g., in a 5 GHz unlicensed frequency spectrum or the like.
  • the STAs 152/AP 150 may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available.
  • CCA clear channel assessment
  • the small cell 102' may operate in a licensed and/or an unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell 102' may employ NR and use the same unlicensed frequency spectrum (e.g., 5 GHz, or the like) as used by the Wi-Fi AP 150. The small cell 102', employing NR in an unlicensed frequency spectrum, may boost coverage to and/or increase capacity of the access network.
  • the small cell 102' employing NR in an unlicensed frequency spectrum, may boost coverage to and/or increase capacity of the access network.
  • the electromagnetic spectrum is often subdivided, based on frequency/wavelength, into various classes, bands, channels, etc.
  • frequency range designations FR1 410 MHz –7.125 GHz
  • FR2 24.25 GHz –52.6 GHz
  • the frequencies between FR1 and FR2 are often referred to as mid-band frequencies.
  • FR1 is often referred to (interchangeably) as a "sub-6 GHz" band in various documents and articles.
  • FR2 which is often referred to (interchangeably) as a "millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a "millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • sub-6 GHz or the like if used herein may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies.
  • millimeter wave or the like if used herein may broadly represent frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.
  • a base station 102 may include and/or be referred to as an eNB, gNodeB (gNB) , or another type of base station.
  • Some base stations, such as gNB 180 may operate in a traditional sub 6 GHz spectrum, in millimeter wave frequencies, and/or near millimeter wave frequencies in communication with the UE 104.
  • the gNB 180 may be referred to as a millimeter wave base station.
  • the millimeter wave base station 180 may utilize beamforming 182 with the UE 104 to compensate for the path loss and short range.
  • the base station 180 and the UE 104 may each include a plurality of antennas, such as antenna elements, antenna panels, and/or antenna arrays to facilitate the beamforming.
  • the base station 180 may transmit a beamformed signal to the UE 104 in one or more transmit directions 182'.
  • the UE 104 may receive the beamformed signal from the base station 180 in one or more receive directions 182” .
  • the UE 104 may also transmit a beamformed signal to the base station 180 in one or more transmit directions.
  • the base station 180 may receive the beamformed signal from the UE 104 in one or more receive directions.
  • the base station 180/UE 104 may perform beam training to determine the best receive and transmit directions for each of the base station 180/UE 104.
  • the transmit and receive directions for the base station 180 may or may not be the same.
  • the transmit and receive directions for the UE 104 may or may not be the same.
  • the EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172.
  • MME Mobility Management Entity
  • MBMS Multimedia Broadcast Multicast Service
  • BM-SC Broadcast Multicast Service Center
  • PDN Packet Data Network
  • the MME 162 may be in communication with a Home Subscriber Server (HSS) 174.
  • HSS Home Subscriber Server
  • the MME 162 is the control node that processes the signaling between the UEs 104 and the EPC 160.
  • the MME 162 provides bearer and connection management. All user Internet protocol (IP) packets are transferred through the Serving Gateway 166, which itself is connected to the PDN Gateway 172.
  • IP Internet protocol
  • the PDN Gateway 172 provides UE IP address allocation as well as other functions.
  • the PDN Gateway 172 and the BM-SC 170 are connected to the IP Services 176.
  • the IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a PS Streaming Service, and/or other IP services.
  • the BM-SC 170 may provide functions for MBMS user service provisioning and delivery.
  • the BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN) , and may be used to schedule MBMS transmissions.
  • PLMN public land mobile network
  • the MBMS Gateway 168 may be used to distribute MBMS traffic to the base stations 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and may be responsible for session management (start/stop) and for collecting eMBMS related charging information.
  • MMSFN Multicast Broadcast Single Frequency Network
  • the core network 190 may include a Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195.
  • the AMF 192 may be in communication with a Unified Data Management (UDM) 196.
  • the AMF 192 is the control node that processes the signaling between the UEs 104 and the core network 190.
  • the AMF 192 provides QoS flow and session management. All user Internet protocol (IP) packets are transferred through the UPF 195.
  • the UPF 195 provides UE IP address allocation as well as other functions.
  • the UPF 195 is connected to the IP Services 197.
  • the IP Services 197 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS) , a Packet Switch (PS) Streaming (PSS) Service, and/or other IP services.
  • IMS IP Multimedia Subsystem
  • PS Packet Switch
  • PSS Packe
  • the base station may include and/or be referred to as a gNB, Node B, eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS) , an extended service set (ESS) , a transmit reception point (TRP) , or some other suitable terminology.
  • the base station 102 provides an access point to the EPC 160 or core network 190 for a UE 104.
  • Examples of UEs 104 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA) , a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player) , a camera, a game console, a tablet, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor/actuator, a display, or any other similar functioning device.
  • SIP session initiation protocol
  • PDA personal digital assistant
  • the UEs 104 may be referred to as IoT devices (e.g., parking meter, gas pump, toaster, vehicles, heart monitor, etc. ) .
  • the UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.
  • the UE 104 may be include an NR-DC QoS flow managing component 198 configured to receive a left-eye view encoded video layer stream through a first QoS flow and a right-eye view encoded video layer stream through a second QoS flow.
  • the base station 180 may include an NR-DC QoS flow managing component 199 configured to transmit the left-eye view encoded video layer stream through the first QoS flow and the right-eye view encoded video layer stream through the second QoS flow.
  • FIG. 2A is a diagram 200 illustrating an example of a first subframe within a 5G NR frame structure.
  • FIG. 2B is a diagram 230 illustrating an example of DL channels within a 5G NR subframe.
  • FIG. 2C is a diagram 250 illustrating an example of a second subframe within a 5G NR frame structure.
  • FIG. 2D is a diagram 280 illustrating an example of UL channels within a 5G NR subframe.
  • the 5G NR frame structure may be frequency division duplexed (FDD) in which for a particular set of subcarriers (carrier system bandwidth) , subframes within the set of subcarriers are dedicated for either DL or UL, or may be time division duplexed (TDD) in which for a particular set of subcarriers (carrier system bandwidth) , subframes within the set of subcarriers are dedicated for both DL and UL.
  • FDD frequency division duplexed
  • TDD time division duplexed
  • the 5G NR frame structure is assumed to be TDD, with subframe 4 being configured with slot format 28 (with mostly DL) , where D is DL, U is UL, and F is flexible for use between DL/UL, and subframe 3 being configured with slot format 1 (with all UL) . While subframes 3, 4 are shown with slot formats 1, 28, respectively, any particular subframe may be configured with any of the various available slot formats 0-61. Slot formats 0, 1 are all DL, UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols.
  • UEs are configured with the slot format (dynamically through DL control information (DCI) , or semi-statically/statically through radio resource control (RRC) signaling) through a received slot format indicator (SFI) .
  • DCI DL control information
  • RRC radio resource control
  • SFI received slot format indicator
  • a frame (10 ms) may be divided into 10 equally sized subframes (1 ms) .
  • Each subframe may include one or more time slots.
  • Subframes may also include mini-slots, which may include 7, 4, or 2 symbols.
  • Each slot may include 7 or 14 symbols, depending on the slot configuration. For slot configuration 0, each slot may include 14 symbols, and for slot configuration 1, each slot may include 7 symbols.
  • the symbols on DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols.
  • the symbols on UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also referred to as single carrier frequency-division multiple access (SC-FDMA) symbols) (for power limited scenarios; limited to a single stream transmission) .
  • the number of slots within a subframe is based on the slot configuration and the numerology. For slot configuration 0, different numerologies ⁇ 0 to 4 allow for 1, 2, 4, 8, and 16 slots, respectively, per subframe. For slot configuration 1, different numerologies 0 to 2 allow for 2, 4, and 8 slots, respectively, per subframe. Accordingly, for slot configuration 0 and numerology ⁇ , there are 14 symbols/slot and 2 ⁇ slots/subframe.
  • the subcarrier spacing and symbol length/duration are a function of the numerology.
  • the subcarrier spacing may be equal to 2 ⁇ *15 kHz, where ⁇ is the numerology 0 to 4.
  • the symbol length/duration is inversely related to the subcarrier spacing.
  • the slot duration is 0.25 ms
  • the subcarrier spacing is 60 kHz
  • the symbol duration is approximately 16.67 ⁇ s.
  • Each BWP may have a particular numerology.
  • a resource grid may be used to represent the frame structure.
  • Each time slot includes a resource block (RB) (also referred to as physical RBs (PRBs) ) that extends 12 consecutive subcarriers.
  • RB resource block
  • PRBs physical RBs
  • the resource grid is divided into multiple resource elements (REs) . The number of bits carried by each RE depends on the modulation scheme.
  • the RS may include demodulation RS (DM-RS) (indicated as R for one particular configuration, but other DM-RS configurations are possible) and channel state information reference signals (CSI-RS) for channel estimation at the UE.
  • DM-RS demodulation RS
  • CSI-RS channel state information reference signals
  • the RS may also include beam measurement RS (BRS) , beam refinement RS (BRRS) , and phase tracking RS (PT-RS) .
  • BRS beam measurement RS
  • BRRS beam refinement RS
  • PT-RS phase tracking RS
  • FIG. 2B illustrates an example of various DL channels within a subframe of a frame.
  • the physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs) , each CCE including six RE groups (REGs) , each REG including 12 consecutive REs in an OFDM symbol of an RB.
  • CCEs control channel elements
  • REGs RE groups
  • a PDCCH within one BWP may be referred to as a control resource set (CORESET) .
  • CORESET control resource set
  • a UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., common search space, UE-specific search space) during PDCCH monitoring occasions on the CORESET, where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at greater and/or lower frequencies across the channel bandwidth.
  • a primary synchronization signal (PSS) may be within symbol 2 of particular subframes of a frame. The PSS is used by a UE 104 to determine subframe/symbol timing and a physical layer identity.
  • a secondary synchronization signal (SSS) may be within symbol 4 of particular subframes of a frame. The SSS is used by a UE to determine a physical layer cell identity group number and radio frame timing.
  • the UE can determine a physical cell identifier (PCI) . Based on the PCI, the UE can determine the locations of the aforementioned DM-RS.
  • the physical broadcast channel (PBCH) which carries a master information block (MIB) , may be logically grouped with the PSS and SSS to form a synchronization signal (SS) /PBCH block (also referred to as SS block (SSB) ) .
  • the MIB provides a number of RBs in the system bandwidth and a system frame number (SFN) .
  • the physical downlink shared channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH such as system information blocks (SIBs) , and paging messages.
  • SIBs system information blocks
  • some of the REs carry DM-RS (indicated as R for one particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station.
  • the UE may transmit DM-RS for the physical uplink control channel (PUCCH) and DM-RS for the physical uplink shared channel (PUSCH) .
  • the PUSCH DM-RS may be transmitted in the first one or two symbols of the PUSCH.
  • the PUCCH DM-RS may be transmitted in different configurations depending on whether short or long PUCCHs are transmitted and depending on the particular PUCCH format used.
  • the UE may transmit sounding reference signals (SRS) .
  • the SRS may be transmitted in the last symbol of a subframe.
  • the SRS may have a comb structure, and a UE may transmit SRS on one of the combs.
  • the SRS may be used by a base station for channel quality estimation to enable frequency-dependent scheduling on the UL.
  • FIG. 2D illustrates an example of various UL channels within a subframe of a frame.
  • the PUCCH may be located as indicated in one configuration.
  • the PUCCH carries uplink control information (UCI) , such as scheduling requests, a channel quality indicator (CQI) , a precoding matrix indicator (PMI) , a rank indicator (RI) , and hybrid automatic repeat request (HARQ) ACK/NACK feedback.
  • UCI uplink control information
  • the PUSCH carries data, and may additionally be used to carry a buffer status report (BSR) , a power headroom report (PHR) , and/or UCI.
  • BSR buffer status report
  • PHR power headroom report
  • FIG. 3 is a block diagram of a base station 310 in communication with a UE 350 in an access network.
  • IP packets from the EPC 160 may be provided to a controller/processor 375.
  • the controller/processor 375 implements layer 3 and layer 2 functionality.
  • Layer 3 includes a radio resource control (RRC) layer
  • layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer.
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • PDCP packet data convergence protocol
  • RLC radio link control
  • MAC medium access control
  • the controller/processor 375 provides RRC layer functionality associated with broadcasting of system information (e.g., MIB, SIBs) , RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release) , inter radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression/decompression, security (ciphering, deciphering, integrity protection, integrity verification) , and handover support functions; RLC layer functionality associated with the transfer of upper layer packet data units (PDUs) , error correction through ARQ, concatenation, segmentation, and reassembly of RLC service data units (SDUs) , re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs) , demultiplexing of MAC SDUs
  • the transmit (TX) processor 316 and the receive (RX) processor 370 implement layer 1 functionality associated with various signal processing functions.
  • Layer 1 which includes a physical (PHY) layer, may include error detection on the transport channels, forward error correction (FEC) coding/decoding of the transport channels, interleaving, rate matching, mapping onto physical channels, modulation/demodulation of physical channels, and MIMO antenna processing.
  • the TX processor 316 handles mapping to signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK) , quadrature phase-shift keying (QPSK) , M-phase-shift keying (M-PSK) , M-quadrature amplitude modulation (M-QAM) ) .
  • BPSK binary phase-shift keying
  • QPSK quadrature phase-shift keying
  • M-PSK M-phase-shift keying
  • M-QAM M-quadrature amplitude modulation
  • the coded and modulated symbols may then be split into parallel streams.
  • Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream.
  • IFFT Inverse Fast Fourier Transform
  • the OFDM stream is spatially precoded to produce multiple spatial streams.
  • Channel estimates from a channel estimator 374 may be used to determine the coding and modulation scheme, as well as for spatial processing.
  • the channel estimate may be derived from a reference signal and/or channel condition feedback transmitted by the UE 350.
  • Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318 TX.
  • Each transmitter 318 TX may modulate an RF carrier with a respective spatial stream for transmission.
  • each receiver 354 RX receives a signal through its respective antenna 352.
  • Each receiver 354 RX recovers information modulated onto an RF carrier and provides the information to the receive (RX) processor 356.
  • the TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions.
  • the RX processor 356 may perform spatial processing on the information to recover any spatial streams destined for the UE 350. If multiple spatial streams are destined for the UE 350, they may be combined by the RX processor 356 into a single OFDM symbol stream.
  • the RX processor 356 then converts the OFDM symbol stream from the time-domain to the frequency domain using a Fast Fourier Transform (FFT) .
  • FFT Fast Fourier Transform
  • the frequency domain signal comprises a separate OFDM symbol stream for each subcarrier of the OFDM signal.
  • the symbols on each subcarrier, and the reference signal are recovered and demodulated by determining the most likely signal constellation points transmitted by the base station 310. These soft decisions may be based on channel estimates computed by the channel estimator 358.
  • the soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the base station 310 on the physical channel.
  • the data and control signals are then provided to the controller/processor 359, which implements layer 3 and layer 2 functionality.
  • the controller/processor 359 can be associated with a memory 360 that stores program codes and data.
  • the memory 360 may be referred to as a computer-readable medium.
  • the controller/processor 359 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, and control signal processing to recover IP packets from the EPC 160.
  • the controller/processor 359 is also responsible for error detection using an ACK and/or NACK protocol to support HARQ operations.
  • the controller/processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIBs) acquisition, RRC connections, and measurement reporting; PDCP layer functionality associated with header compression/decompression, and security (ciphering, deciphering, integrity protection, integrity verification) ; RLC layer functionality associated with the transfer of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.
  • RRC layer functionality associated with system information (e.g., MIB, SIBs) acquisition, RRC connections, and measurement reporting
  • PDCP layer functionality associated with header
  • Channel estimates derived by a channel estimator 358 from a reference signal or feedback transmitted by the base station 310 may be used by the TX processor 368 to select the appropriate coding and modulation schemes, and to facilitate spatial processing.
  • the spatial streams generated by the TX processor 368 may be provided to different antenna 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a respective spatial stream for transmission.
  • the UL transmission is processed at the base station 310 in a manner similar to that described in connection with the receiver function at the UE 350.
  • Each receiver 318RX receives a signal through its respective antenna 320.
  • Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to a RX processor 370.
  • the controller/processor 375 can be associated with a memory 376 that stores program codes and data.
  • the memory 376 may be referred to as a computer-readable medium.
  • the controller/processor 375 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover IP packets from the UE 350. IP packets from the controller/processor 375 may be provided to the EPC 160.
  • the controller/processor 375 is also responsible for error detection using an ACK and/or NACK protocol to support HARQ operations.
  • At least one of the TX processor 368, the RX processor 356, and the controller/processor 359 may be configured to perform aspects in connection with 198 of FIG. 1.
  • At least one of the TX processor 316, the RX processor 370, and the controller/processor 375 may be configured to perform aspects in connection with 199 of FIG. 1.
  • the RAN that may support an NR-NR dual connectivity may include two base stations and including a master base station and a secondary base station.
  • the NR-NR dual connectivity may be referred to as "NR-NR dual connectivity" or "NR-DC. "
  • a UE may be connected to a master base station that acts as a master node and a secondary base station that acts as a secondary node.
  • the master node may refer to a RAN node that provides the control plane connection to the core network.
  • the master node may be a master eNB (in E-UTRA NR (EN) dual connectivity (DC) (EN-DC) ) , a master NG-eNB (in NG-RAN EN-DC (NGEN-DC) ) , or a master gNB (in NR-E-UTRA DC (NE-DC) ) .
  • the secondary node may be a radio access node, with no control plane connection to the core network, providing additional resources to the UE.
  • the secondary node may be an EN-gNB (in EN-DC) , a secondary NG-eNB (in NE-DC) , or a secondary gNB (in NGEN-DC) .
  • the master node may be connected to the 5G core network via an NG-C interface and an NG-U interface and to the secondary node via the Xn interface.
  • the NG-C interface is a control plane interface between the master node and the 5G core network
  • the NG-U interface is a user plane interface between the master node or the secondary node and the 5G core network.
  • the secondary node may be connected to the 5GC via the NG-U interface.
  • a master cell group (MCG) may refer to a group of serving cells associated with the master node
  • SCG secondary cell group
  • NR-DC can also be used for a configuration that the UE is connected to two gNB distribution units (gNB-DUs) , including one gNB-DU serving the MCG and the other serving the SCG, connected to the same gNB-CU, acting as both a master node and as a secondary node.
  • gNB-DUs gNB distribution units
  • An MCG data radio bearer may be a data bearer whose radio protocols are located in the master node to use the master node resources
  • an SCG DRB may be a data bearer whose radio protocols are located in the secondary node to use the secondary node resources
  • a split DRB may be a data bearer whose radio protocols may be located in both the master node and the secondary node to use both the master node resources and the secondary node resources.
  • a QoS flow may be used to transmit the data between the 5GC and the UE.
  • the 5GC may schedule the QoS flow with one of the MCG DRB, the SCG DRB, or the split DRB.
  • Each QoS flow may be assigned a 5G QoS identifier (5QI) and an allocation and retention priority (ARP) .
  • 5QI 5G QoS identifier
  • ARP allocation and retention priority
  • a single QoS flow may be used for data transmission for cloud VR/AR/gaming.
  • the 5GC may assign the cloud VR/AR/gaming QoS with a 5QI together with other QoS parameters.
  • NG-RAN may schedule this QoS flow based on the 5QI and the other QoS parameters.
  • a single QoS flow can be scheduled with either a single DRB (e.g., the master DRB or the secondary DRB) or the split DRB of MCG and SCG.
  • a single DRB e.g., the master DRB or the secondary DRB
  • the cloud VR/AR/gaming service may be dropped or broken.
  • Duplicate PDCP protocol data units (PDUs) in the MCG and the SCG may be proposed to enhance the reliability of the application (i.e., the cloud VR/AR/gaming service) .
  • implementing the duplicate PDCP PDUs may double the radio BW.
  • the duplicate PDCP in the MCG and the SCG may increase the latency of cloud VR/AR/gaming, as the UE may need to wait for the arrival of both duplicate PDUs packets.
  • a solution for NR-DC may provide lower latency and better reliability without wasting radio resources may be beneficial.
  • dual independent QoS flows for cloud VR/AR/gaming service for left and/or right view encoded video streams may be scheduled as independent DRBs in the MCG and/or the SCG by the NG-RAN.
  • the dual independent QoS flows may be created for the cloud VR/AR/gaming service session. That is, a first QoS flow and a second QoS flow may be created for the cloud VR/AR/gaming service session.
  • the first QoS flow may be configured for a left eye view encoded video layer stream and the second QoS flow may be for a right eye view encoded video layer stream.
  • the first QoS flow may be configured for the right eye view encoded video layer stream and the second QoS flow may be configured for the left eye view encoded video layer stream.
  • the NG-RAN may schedule the first QoS flow and the second QoS flow in different cell groups using different and independent DRBs. That is, the first QoS flow in the MCG and a QoS flow B in SCG of the UE may be scheduled using different independent DRBs. If the NR-DC between the UE and the 5GC includes a good signal quality, the cloud VR/AR/gaming service may have further improved latency from the parallel transmission.
  • one QoS flow may fail, and another QoS flow may be successfully transmitted.
  • the UE may decode the successfully transmitted QoS flow to retrieve the packets of one of the right eye view encoded video layer stream or the left eye view encoded video layer stream of the cloud VR/AR/gaming service.
  • the UE may use the retrieved packets to display one of the right eye view encoded video layer stream or the left eye view encoded video layer stream of the cloud VR/AR/gaming service for both eye views to a user of the UE.
  • the UE may still be able to provide the user with continuous and complete image and/or video stream.
  • the end-user experiences for the user of the UE may be improved compared with corruption or broken service of content. Accordingly, the reliability and latency of the cloud VR/AR/gaming service over NR-DC may be improved without wasting the network radio resources.
  • FIG. 4 is a call-flow diagram 400 of wireless communication, including a UE 402 and a base station 404.
  • the UE may be NR-DC capable, and the NR-DC connection may be established between the UE 402 and the base station 404.
  • the base station 404 may include the master base station and the secondary base station.
  • the base station 404 may include the first gNB-DU serving the MCG and the second gNB-DU serving the SCG.
  • the base station 404 may transmit a left-eye view encoded video layer stream to the UE 402.
  • the left-eye view encoded video layer stream may be transmitted through a first QoS flow.
  • the UE 402 may receive the left-eye view encoded video layer stream from one of a PCell associated with a MCG or a SCell associated with a SCG.
  • the base station 404 may transmit a right-eye view encoded video layer stream to the UE 402.
  • the left-eye view encoded video layer stream and the right-eye view encoded video layer stream may be transmitted through different cell groups.
  • the UE 402 may receive the right-eye view encoded video layer stream through a second QoS flow.
  • the right-eye view encoded video layer stream may be received from the other of the PCell associated with the MCG or the SCell associated with the SCG.
  • the UE 402 may send one or more of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to at least one display of the UE 402 to display the one or more of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to a user of the UE 402.
  • the left-eye view encoded video layer stream and the right-eye view encoded video layer stream may be associated with one of virtual reality (VR) or augmented reality (AR) .
  • FIG. 5 is a flowchart 500 of a method of wireless communication. The method may be performed by a UE or a component of a UE (e.g., the UE 104, 402; the apparatus 602) .
  • a UE e.g., the UE 104, 402; the apparatus 602 .
  • the UE may receive, through a first QoS flow, a left-eye view encoded video layer stream from a base station (e.g., as at 406) .
  • the left-eye view encoded video layer stream may be received from one of a PCell associated with a MCG or a SCell associated with a SCG.
  • 502 may be performed by an NR-DC QoS flow managing component 640.
  • the UE may receive, through a second QoS flow, a right-eye view encoded video layer stream from the base station (e.g., as at 408) .
  • the left-eye view encoded video layer stream and the right-eye view encoded video layer stream may be received through different cell groups.
  • the right-eye view encoded video layer stream may be received from the other of the PCell associated with the MCG or the SCell associated with the SCG.
  • 504 may be performed by the NR-DC QoS flow managing component 640.
  • the UE may send at least one of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to at least one display of the UE (e.g., as at 410) .
  • the left-eye view encoded video layer stream and the right-eye view encoded video layer stream may be associated with one of VR or AR.
  • 506 may be performed by a display managing component 642.
  • FIG. 6 is a diagram 600 illustrating an example of a hardware implementation for an apparatus 602.
  • the apparatus 602 is a UE and includes a cellular baseband processor 604 (also referred to as a modem) coupled to a cellular RF transceiver 622 and one or more subscriber identity modules (SIM) cards 620, an application processor 606 coupled to a secure digital (SD) card 608 and a screen 610, a Bluetooth module 612, a wireless local area network (WLAN) module 614, a Global Positioning System (GPS) module 616, and a power supply 618.
  • the cellular baseband processor 604 communicates through the cellular RF transceiver 622 with the UE 104 and/or BS 102/180.
  • the cellular baseband processor 604 may include a computer-readable medium/memory.
  • the computer-readable medium/memory may be non-transitory.
  • the cellular baseband processor 604 is responsible for general processing, including the execution of software stored on the computer-readable medium/memory.
  • the software when executed by the cellular baseband processor 604, causes the cellular baseband processor 604 to perform the various functions described supra.
  • the computer-readable medium/memory may also be used for storing data that is manipulated by the cellular baseband processor 604 when executing software.
  • the cellular baseband processor 604 further includes a reception component 630, a communication manager 632, and a transmission component 634.
  • the communication manager 632 includes the one or more illustrated components.
  • the components within the communication manager 632 may be stored in the computer-readable medium/memory and/or configured as hardware within the cellular baseband processor 604.
  • the cellular baseband processor 604 may be a component of the UE 350 and may include the memory 360 and/or at least one of the TX processor 368, the RX processor 356, and the controller/processor 359.
  • the apparatus 602 may be a modem chip and include just the baseband processor 604, and in another configuration, the apparatus 602 may be the entire UE (e.g., see 350 of FIG. 3) and include the aforediscussed additional modules of the apparatus 602.
  • the communication manager 632 includes an NR-DC QoS flow managing component 640 that is configured to receive, through a first QoS flow, a left-eye view encoded video layer stream from a base station and receive, through a second QoS flow, a right-eye view encoded video layer stream from a base station, e.g., as described in connection with 502 and 504.
  • the communication manager 632 further includes a display managing component 642 that is configured to send at least one of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to at least one display of the UE, e.g., as described in connection with 506.
  • the apparatus may include additional components that perform each of the blocks of the algorithm in the aforementioned flowcharts of FIGs. 4 and 5. As such, each block in the aforementioned flowcharts of FIGs. 4 and 5 may be performed by a component and the apparatus may include one or more of those components.
  • the components may be one or more hardware components specifically configured to carry out the stated processes/algorithm, implemented by a processor configured to perform the stated processes/algorithm, stored within a computer-readable medium for implementation by a processor, or some combination thereof.
  • the apparatus 602 includes means for receiving, through a first QoS flow, a left-eye view encoded video layer stream, and means for receiving, through a second QoS flow, a right-eye view encoded video layer stream.
  • the apparatus 602 also includes means for sending at least one of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to at least one display of the UE.
  • the aforementioned means may be one or more of the aforementioned components of the apparatus 602 configured to perform the functions recited by the aforementioned means.
  • the apparatus 602 may include the TX Processor 368, the RX Processor 356, and the controller/processor 359.
  • the aforementioned means may be the TX Processor 368, the RX Processor 356, and the controller/processor 359 configured to perform the functions recited by the aforementioned means.
  • FIG. 7 is a flowchart 700 of a method of wireless communication.
  • the method may be performed by a base station or a component of a base station (e.g., the base station 102/180, 404; the apparatus 802) .
  • the base station may transmit, through a first QoS flow, a left-eye view encoded video layer stream to a UE (e.g., as at 406) .
  • the left-eye view encoded video layer stream may be transmitted through one of a PCell associated with a MCG or a SCell associated with a SCG.
  • 702 may be performed by an NR-DC QoS flow managing component 840.
  • the base station may transmit, through a second QoS flow, a right-eye view encoded video layer stream to the UE (e.g., as at 408) .
  • the left-eye view encoded video layer stream and the right-eye view encoded video layer stream may be transmitted through different cell groups.
  • the right-eye view encoded video layer stream may be transmitted through the other of the PCell associated with the MCG or the SCell associated with the SCG.
  • the left-eye view encoded video layer stream and the right-eye view encoded video layer stream may be associated with one of VR or AR.
  • 704 may be performed by the NR-DC QoS flow managing component 840.
  • FIG. 8 is a diagram 800 illustrating an example of a hardware implementation for an apparatus 802.
  • the apparatus 802 is a BS and includes a baseband unit 804.
  • the baseband unit 804 may communicate through a cellular RF transceiver with the UE 104.
  • the baseband unit 804 may include a computer-readable medium/memory.
  • the baseband unit 804 is responsible for general processing, including the execution of software stored on the computer-readable medium/memory.
  • the software when executed by the baseband unit 804, causes the baseband unit 804 to perform the various functions described supra.
  • the computer-readable medium/memory may also be used for storing data that is manipulated by the baseband unit 804 when executing software.
  • the baseband unit 804 further includes a reception component 830, a communication manager 832, and a transmission component 834.
  • the communication manager 832 includes the one or more illustrated components.
  • the components within the communication manager 832 may be stored in the computer-readable medium/memory and/or configured as hardware within the baseband unit 804.
  • the baseband unit 804 may be a component of the base station 310 and may include the memory 376 and/or at least one of the TX processor 316, the RX processor 370, and the controller/processor 375.
  • the communication manager 832 includes an NR-DC QoS flow managing component 840 that is configured to transmit, through a first QoS flow, a left-eye view encoded video layer stream to a UE, and transmit, through a second QoS flow, a right-eye view encoded video layer stream to the UE, e.g., as described in connection with 702 and 704.
  • an NR-DC QoS flow managing component 840 that is configured to transmit, through a first QoS flow, a left-eye view encoded video layer stream to a UE, and transmit, through a second QoS flow, a right-eye view encoded video layer stream to the UE, e.g., as described in connection with 702 and 704.
  • the apparatus may include additional components that perform each of the blocks of the algorithm in the aforementioned flowcharts of FIGs. 4 and 7. As such, each block in the aforementioned flowcharts of FIGs. 4 and 7 may be performed by a component and the apparatus may include one or more of those components.
  • the components may be one or more hardware components specifically configured to carry out the stated processes/algorithm, implemented by a processor configured to perform the stated processes/algorithm, stored within a computer-readable medium for implementation by a processor, or some combination thereof.
  • the apparatus 802 includes means for transmitting, to a UE through a first QoS flow, a left-eye view encoded video layer stream, and means for transmitting, to the UE through a second QoS flow, a right-eye view encoded video layer stream.
  • the aforementioned means may be one or more of the aforementioned components of the apparatus 802 configured to perform the functions recited by the aforementioned means.
  • the apparatus 802 may include the TX Processor 316, the RX Processor 370, and the controller/processor 375.
  • the aforementioned means may be the TX Processor 316, the RX Processor 370, and the controller/processor 375 configured to perform the functions recited by the aforementioned means.
  • a UE may receive a left-eye view encoded video layer stream through a first QoS flow and a right-eye view encoded video layer stream through a second QoS flow.
  • the UE may send one or more of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to at least one display of the UE to display the one or more of the left-eye view encoded video layer stream or the right-eye view encoded video layer stream to a user of the UE. Accordingly, the reliability and latency of the cloud VR/AR/gaming service over NR-DC may be improved without wasting the network radio resources.
  • Combinations such as “at least one of A, B, or C, ” “one or more of A, B, or C, ” “at least one of A, B, and C, ” “one or more of A, B, and C, " and "A, B, C, or any combination thereof” include any combination of A, B, and/or C, and may include multiples of A, multiples of B, or multiples of C.
  • combinations such as “at least one of A, B, or C, ” “one or more of A, B, or C, ” “at least one of A, B, and C, ” “one or more of A, B, and C, “ and "A, B, C, or any combination thereof” may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, where any such combinations may contain one or more member or members of A, B, or C.

Abstract

Un UE peut recevoir un flux de couche vidéo codé de vue de l'œil gauche via un premier flux de QoS et un flux de couche vidéo codé de vue de l'œil droit via un second flux de QoS. L'UE peut envoyer un ou plusieurs du flux de couche vidéo codé de vue de l'œil gauche ou du flux de couche vidéo codé de vue de l'œil droit à au moins un dispositif d'affichage de l'UE pour afficher le ou les flux de couche vidéo codé de vue de l'œil gauche ou le flux de couche vidéo codé de vue de l'œil droit à un utilisateur de l'UE.
PCT/CN2020/115265 2020-09-15 2020-09-15 Procédés et appareil de vr/ar en nr-dc WO2022056662A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090142041A1 (en) * 2007-11-29 2009-06-04 Mitsubishi Electric Corporation Stereoscopic video recording method, stereoscopic video recording medium, stereoscopic video reproducing method, stereoscopic video recording apparatus, and stereoscopic video reproducing apparatus
CN102972033A (zh) * 2010-05-05 2013-03-13 三星电子株式会社 用于立体三维视频信息的通信的方法和系统
WO2019120638A1 (fr) * 2017-12-22 2019-06-27 Huawei Technologies Co., Ltd. Fov+ échelonnable pour distribution de vidéo de réalité virtuelle (vr) à 360° à des utilisateurs finaux distants
US10553029B1 (en) * 2016-09-30 2020-02-04 Amazon Technologies, Inc. Using reference-only decoding of non-viewed sections of a projected video

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090142041A1 (en) * 2007-11-29 2009-06-04 Mitsubishi Electric Corporation Stereoscopic video recording method, stereoscopic video recording medium, stereoscopic video reproducing method, stereoscopic video recording apparatus, and stereoscopic video reproducing apparatus
CN102972033A (zh) * 2010-05-05 2013-03-13 三星电子株式会社 用于立体三维视频信息的通信的方法和系统
US10553029B1 (en) * 2016-09-30 2020-02-04 Amazon Technologies, Inc. Using reference-only decoding of non-viewed sections of a projected video
WO2019120638A1 (fr) * 2017-12-22 2019-06-27 Huawei Technologies Co., Ltd. Fov+ échelonnable pour distribution de vidéo de réalité virtuelle (vr) à 360° à des utilisateurs finaux distants

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