WO2021062867A1 - Application d'optimisation de battement cardiaque - Google Patents

Application d'optimisation de battement cardiaque Download PDF

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Publication number
WO2021062867A1
WO2021062867A1 PCT/CN2019/109804 CN2019109804W WO2021062867A1 WO 2021062867 A1 WO2021062867 A1 WO 2021062867A1 CN 2019109804 W CN2019109804 W CN 2019109804W WO 2021062867 A1 WO2021062867 A1 WO 2021062867A1
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WO
WIPO (PCT)
Prior art keywords
applications
data
modem
heartbeat
application
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Application number
PCT/CN2019/109804
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English (en)
Inventor
Jie Mao
Jianqiang Zhang
Nanrun WU
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Qualcomm Incorporated
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Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2019/109804 priority Critical patent/WO2021062867A1/fr
Publication of WO2021062867A1 publication Critical patent/WO2021062867A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates generally to communication systems, and more particularly, to a user equipment.
  • 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
  • 5G NR may be based on the 4G Long Term Evolution (LTE) standard.
  • LTE Long Term Evolution
  • the application may attempt to send heartbeat messages to a server, e.g., to verify connection with the server.
  • the UE may need to activate an application processor (AP) to run the application and activate a modem to transmit the heartbeat message to the server.
  • AP application processor
  • the UE may need to activate the AP and the modem each time each application needs to send a heartbeat message.
  • the AP and the modem may consume power each time they are activated.
  • a UE includes an agent running on a modem.
  • the agent receives registration information from applications running on an application processor of the UE.
  • the agent sends, for each of the applications, a heartbeat message to a corresponding server based on the registration information.
  • the agent can send the heartbeat message based on the registration information without activating the AP, avoiding power consumption by the AP.
  • the agent may also send heartbeat messages for multiple applications during a single wake up period, resulting in the modem waking up fewer times to send heartbeat messages, further reducing power consumption.
  • the apparatus may be a UE.
  • the UE may receive registration information from a plurality of applications running on an application AP of the UE, the registration information including at least a wakeup period associated with the application and server information, and may send, for each of the plurality of applications, a heartbeat message to a server, the heartbeat message being sent based on the corresponding wakeup period, the server being based on the corresponding server information, the sending comprising sending at least two heartbeat messages for different applications of the plurality of applications during an overlapping wakeup period of a modem of the UE
  • 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.
  • FIGs. 2A, 2B, 2C, and 2D are diagrams illustrating examples of a first 5G/NR frame, DL channels within a 5G/NR subframe, a second 5G/NR frame, and UL channels within a 5G/NR subframe, respectively.
  • 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 block diagram illustrating a UE.
  • FIG. 5 illustrates the power consumption of a UE resulting from applications sending heartbeat messages.
  • FIG. 6 illustrates the power consumption of a UE utilizing an application heartbeat modification.
  • FIG. 7 illustrates the power consumption of a UE utilizing another application heartbeat modification.
  • FIG. 8 illustrates the power consumption of a UE utilizing both the application heartbeat modification of FIG. 6 and the application heartbeat modification of FIG. 7.
  • FIG. 9 is a block diagram illustrating a UE configured to provide application heartbeat modification.
  • FIG. 10 is a flowchart of a method of wireless communication.
  • 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 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, FlashLinQ, WiMedia,
  • 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 in a 5 GHz unlicensed frequency spectrum.
  • AP Wi-Fi access point
  • STAs Wi-Fi stations
  • communication links 154 in a 5 GHz unlicensed frequency spectrum.
  • 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 5 GHz unlicensed frequency spectrum 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.
  • 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 (mmW) frequencies, and/or near mmW frequencies in communication with the UE 104.
  • mmW millimeter wave
  • mmW base station Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum.
  • EHF Extremely high frequency
  • EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters. Radio waves in the band may be referred to as a millimeter wave. Near mmW may extend down to a frequency of 3 GHz with a wavelength of 100 millimeters.
  • the super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using the mmW /near mmW radio frequency band (e.g., 3 GHz –300 GHz) has extremely high path loss and a short range.
  • the mmW base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high 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 PS Streaming Service, and/or other IP services.
  • IMS IP Multimedia Subsystem
  • 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 include an agent 198 at a modem of the UE configured to receive registration information from applications running on an AP of the UE and send heartbeat messages to servers based on the registration information.
  • an agent 198 at a modem of the UE configured to receive registration information from applications running on an AP of the UE and send heartbeat messages to servers based on the registration information.
  • 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 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 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.
  • 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 X is flexible for use between DL/UL, and subframe 3 being configured with slot format 34 (with mostly UL) .
  • 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 5 allow for 1, 2, 4, 8, 16, and 32 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 5.
  • ⁇ is the numerology 0 to 5.
  • the symbol length/duration is inversely related to the subcarrier spacing.
  • the subcarrier spacing is 15 kHz and symbol duration is approximately 66.7 ⁇ s.
  • 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 x for one particular configuration, where 100x is the port number, 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) , each CCE including nine RE groups (REGs) , each REG including four consecutive REs in an OFDM symbol.
  • 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.
  • 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 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 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 SDU
  • 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 318TX.
  • Each transmitter 318TX may modulate an RF carrier with a respective spatial stream for transmission.
  • each receiver 354RX receives a signal through its respective antenna 352.
  • Each receiver 354RX 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
  • 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.
  • FIG. 4 is a block diagram illustrating a UE 400.
  • the UE includes an application processor (AP) 410, a modem 430, and may include an additional device 430 (e.g., a phone) .
  • AP application processor
  • modem modem
  • additional device 430 e.g., a phone
  • the AP 410 may run a first application APP1 412 and a second application APP2 414.
  • the applications APP1 412 and APP2 414 communicate with servers through the modem 420.
  • Each application may have its own TCP link to a respective server.
  • APP1 412 has a TCP connection to Server 1 440 and APP2 414 has a TCP connection to Server 2 450.
  • the applications APP1 412 and APP2 414 send heartbeat messages to the servers Server 1 440 and Server 2 450, e.g., to query whether the application has a connection established with the server.
  • the servers Server 1 440 and Server 2 450 send acknowledgement messages and the applications APP1 412 and APP2 414 receive the acknowledgement messages from their respective server.
  • the servers Server 1 440 and Server 2 450 may also send a PUSH message to their respective applications APP1 412 and APP2 414, and the applications APP1 412 and APP2 414 may receive the PUSH message.
  • FIG. 5 illustrates the power consumption of a UE resulting from applications sending heartbeat messages.
  • the UE may be the UE 400.
  • the AP 410 may periodically wake up for applications such as APP1 412 and APP2 414 to send and receive messages.
  • the modem 420 may also wake up at the same time to send the messages.
  • Modem power blocks 512 represent power consumed based on APP1 412 waking up the modem 420
  • modem power blocks 524 represent power consumed based on APP2 414 waking up the modem 420
  • AP power blocks 514 represent power consumed based on APP1 412 waking up the AP 410
  • AP power blocks 524 represent power consumed based on APP2 waking up the AP 410.
  • APP1 412 may cause the modem 420 and the AP 410 to wake up periodically at a first time
  • APP2 414 may cause the modem 420 and the AP 410 to wake up periodically at a second time which is different from the first time.
  • the power consumed by the AP 410 may be greater than the power consumed by the modem 420.
  • the UE 400 may periodically receive a page from a base station, illustrated by a paging indicator 514.
  • the page may indicate that the base station has data to transmit to the UE.
  • the modem 420 When the modem 420 is awake, it may receive the page, determine that the base station has a transmission for the UE (e.g., for APP1 412 or APP2 414) and may receive the transmission from the base station.
  • the total power consumption includes modem power blocks 512 and 522 and AP power blocks 514 and 524. Both the AP 410 and the modem 420 consume power each time APP1 412 or APP2 414 attempt to send a heartbeat message to their respective server.
  • FIG. 6 illustrates the power consumption of a UE utilizing an application heartbeat modification.
  • Modem power blocks 612 and 622 and AP power blocks 614 and 624 may illustrate the UE power consumption when two applications, e.g., APP1 412 and APP2 414, periodically wake up the modem 420 and the AP 410 to send heartbeat messages to their respective servers, e.g., as discussed above with respect to FIG. 5.
  • a modem of a UE may wake up to send heartbeat messages to servers for respective applications without waking up the AP.
  • modem power blocks 634 represent power consumed by the modem waking up periodically to send heartbeat messages for a first application
  • modem power blocks 644 represent power consumed by the modem waking up periodically to send heartbeat messages for the second application.
  • the AP consumes no power, illustrated by the lack of AP power blocks, the UE may consume less power.
  • FIG. 7 illustrates the power consumption of a UE utilizing another application heartbeat modification.
  • Modem power blocks 734 and 744 may illustrate a UE power consumption when two applications periodically wake up a modem of the UE to send heartbeat messages for first and second applications, but do not wake up an AP of the UE, e.g., as described above with respect to FIG. 6.
  • a modem of a UE may wake up to send heartbeat messages to servers for two applications at the same time.
  • modem power blocks 754 represent the power consumed when the modem wakes up and sends a heartbeat message to a first server for a first application and sends a heartbeat to a second server for a second application.
  • the modem sends the heartbeat messages for both the first and the second application without waking up a second time, illustrated by a lack of a second set of modem power blocks, the modem is on for less time so the UE consumes less power.
  • FIG. 8 illustrates the power consumption of a UE utilizing both the application heartbeat modification of FIG. 6 and the application heartbeat modification of FIG. 7 as compared to the power consumption of a UE utilizing neither the application heartbeat modification of FIG. 6 nor the application heartbeat modification of FIG. 7.
  • the unmodified power consumption 810 including AP power blocks and twice as many modem power blocks, may be larger than the modified power consumption 820.
  • FIG. 9 is a block diagram illustrating a UE 900 configured to provide application heartbeat modification.
  • the UE 900 may include an AP 910, a modem 920, and may include an additional device 930 (e.g., a phone) .
  • an additional device 930 e.g., a phone
  • the AP 910 may run a first application APP1 912 and a second application APP2 914.
  • the first application APP1 912 may have a corresponding server Sever 1 940
  • the second application APP2 914 may have a corresponding server Server 2 950.
  • the modem 920 may include an agent 962.
  • Applications running on the AP 910 such as APP1 912 and APP2 914 may register with the agent 962.
  • the applications may register a wakeup period, a delay tolerance, and an IP address and port.
  • the agent 962 may send heartbeat messages to the servers Server 1 940 and Server 2 950 (e.g., TCP SN-1 messages) on behalf of the applications APP1 912 and APP2 914, e.g., to query whether the application has a connection established with the server.
  • the agent 962 may send the heartbeat message for an application based on the information previously registered with the agent 962 for that application. Accordingly, the modem 920 via the agent 962 may send the heartbeat message for an application without the AP 910 waking up to run the application. This may result in the application heartbeat modification described above with respect to FIG. 6, resulting in the UE using less power to send heartbeat messages.
  • APP1 912 may request to transmit data to Server 1 940, the modem 920 may wake up to perform the data transmit request for APP1 912, and the agent 962 may piggyback a heartbeat message for APP2 914 to Server 2 950 during the same wake up period for the modem 920.
  • the agent 962 may synchronize uplink data transmissions. Based on the wake up periods and the delay tolerances registered for applications with the agent 962, the agent 962 may delay sending a heartbeat message for an application to send it at the same time as another heartbeat message for another application. For example, APP1 912 may have registered a first wakeup period and a first delay tolerance, and APP2 914 may have registered a second wakeup period. Where the second wakeup period of APP2 914 is less that the first delay tolerance after the first wakeup period of APP1 912, the agent 962 may not wake up during the first wakeup period, and may wakeup during the second wakeup period and send the heartbeat messages for both APP1 912 and APP2 914.
  • the synchronization of uplink data transmission may result in the application heartbeat modification described above with respect to FIG. 7, resulting in the modem 920 using less power to send heartbeat messages.
  • the servers Server 1 940 and Server 2 950 may send acknowledgement messages (e.g., TCP keep-alive ACK messages) .
  • the modem 920 may include an IP packet accelerator (IPA) 964.
  • the IPA 964 may receive the acknowledgement messages and may discard the acknowledgement messages., f the IPA 964 does not receive the acknowledgements from the server in a specified time period, IPA 964 should notify the agent 962, and agent 962 will wake the corresponding APP to handle it.
  • the servers Server 1 940 and Server 2 950 may transmit a PUSH message for APP1 912 and APP2 914, respectively.
  • the agent 962 may receive the PUSH message. In some aspects, the agent 962 may send the PUSH message to the appropriate application. In some aspects, the agent 962 may determine whether the PUSH message is security related.
  • the AP 910 may include a PUSH Agent 966, and upon determining that the PUSH message is security related, the agent 962 may forward the PUSH message to the PUSH agent 966, and the PUSH agent 966 may forward the PUSH message to the corresponding application.
  • the PUSH agent 966 may be transparent to the security related PUSH message. Upon determining that the PUSH message is not security related, the agent 962 may forward the PUSH message to the corresponding application.
  • the modem 920 may use an extended service request (ESR) and a tracking area update (TAU) to trigger early RRC release. After the early RRC release, the UE 900 may go to idle mode to save power.
  • ESR extended service request
  • TAU tracking area update
  • FIG. 10 is a flowchart 1000 illustrating a method of communication.
  • the method may be performed by a UE (e.g., the UE 900; which may be the entire UE 350 or a component of the UE 350, such as the TX processor 368, the RX processor 356, and/or the controller/processor 359) .
  • a UE e.g., the UE 900; which may be the entire UE 350 or a component of the UE 350, such as the TX processor 368, the RX processor 356, and/or the controller/processor 359 .
  • the UE receives registration information from a plurality of applications running on an application processor (AP) of the UE.
  • the registration information may include at least a wakeup period associated with the application and server information.
  • the registration information may further include a delay tolerance, and the heartbeat messages may be sent further based on the corresponding delay tolerance for each of the plurality of applications, for example as illustrated at 1004.
  • the UE may determine overlapping wakeup periods for at least two applications of the plurality of applications based on the delay tolerances and the wakeup periods of the two applications.
  • the heartbeat messages may be sent based on the determined overlapping wakeup periods.
  • the UE sends, for each of the plurality of applications, a heartbeat message to a server.
  • the heartbeat message may be sent based on the corresponding wakeup period.
  • the server may be based on the corresponding server information.
  • the sending may include sending at least two heartbeat messages for different applications of the plurality of applications during an overlapping wakeup period of a modem of the UE.
  • the sending may further include sending uplink (UL) data to at least one application of the plurality of applications during an overlapping wakeup period in which heartbeat messages are sent for the plurality of applications.
  • the sending may be performed by an agent running on the modem.
  • the UE may receive, for each sent heartbeat message, an acknowledgment for the corresponding server based on the heartbeat message.
  • the acknowledgment may be received by an Internet protocol (IP) accelerator (IPA) running on the modem.
  • IP Internet protocol
  • IPA Internet protocol accelerator
  • the IPA may discard each acknowledgement upon receiving the acknowledgement.
  • the UE may receive DL data, the DL data being a push message, determine whether the DL data is security related, forward the DL data to a push agent running on the AP when the DL data is security related, and forward the DL data to the corresponding application when the DL data is not security related.
  • the UE may trigger an early RRC release through an extending services request and tracking area update.
  • a UE which includes an agent included in the modem of the UE.
  • Applications running on the application processor register with the agent, and the agent sends heartbeat messages for the applications without the AP actually waking up to run the applications, reducing power consumption by the AP.
  • the agent may also send multiple heartbeat messages during the same wakeup period, thereby reducing the number of times the modem needs to wake up, further reducing power consumption.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un UE qui comprend un agent s'exécutant sur un modem. L'agent reçoit des informations d'enregistrement provenant d'applications s'exécutant sur un processeur d'application de l'UE. L'agent envoie, pour chacune des applications, un message de battement cardiaque à un serveur correspondant sur la base des informations d'enregistrement.
PCT/CN2019/109804 2019-10-02 2019-10-02 Application d'optimisation de battement cardiaque WO2021062867A1 (fr)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015077961A1 (fr) * 2013-11-28 2015-06-04 华为终端有限公司 Procédé d'envoi d'un message de rythme cardiaque et terminal mobile
EP2882233A1 (fr) * 2013-10-29 2015-06-10 Huawei Device Co., Ltd. Procédé d'agent de service, modem et terminal
CN105916100A (zh) * 2016-04-01 2016-08-31 华为技术有限公司 代理心跳包的方法、装置和通信系统
US20170289075A1 (en) * 2014-09-04 2017-10-05 Zte Corporation Method and Device for Managing Instant Communication Application Program, and Mobile Terminal thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2882233A1 (fr) * 2013-10-29 2015-06-10 Huawei Device Co., Ltd. Procédé d'agent de service, modem et terminal
WO2015077961A1 (fr) * 2013-11-28 2015-06-04 华为终端有限公司 Procédé d'envoi d'un message de rythme cardiaque et terminal mobile
US20170289075A1 (en) * 2014-09-04 2017-10-05 Zte Corporation Method and Device for Managing Instant Communication Application Program, and Mobile Terminal thereof
CN105916100A (zh) * 2016-04-01 2016-08-31 华为技术有限公司 代理心跳包的方法、装置和通信系统

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