WO2021174435A1 - Gestion d'un débit binaire de liaison descendante - Google Patents

Gestion d'un débit binaire de liaison descendante Download PDF

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Publication number
WO2021174435A1
WO2021174435A1 PCT/CN2020/077701 CN2020077701W WO2021174435A1 WO 2021174435 A1 WO2021174435 A1 WO 2021174435A1 CN 2020077701 W CN2020077701 W CN 2020077701W WO 2021174435 A1 WO2021174435 A1 WO 2021174435A1
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WIPO (PCT)
Prior art keywords
loss rate
threshold
downlink signal
processor
data loss
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PCT/CN2020/077701
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English (en)
Inventor
Jinxing WANG
Min Wang
Shankar Ganesh Lakshmanaswamy
Chen Chen
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Qualcomm Incorporated
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Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2020/077701 priority Critical patent/WO2021174435A1/fr
Publication of WO2021174435A1 publication Critical patent/WO2021174435A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication

Definitions

  • a base station may detect radio link conditions and send a bit rate recommendation to the wireless device.
  • the bit rate recommendation typically includes an index value that maps to a corresponding recommended bit rate. However, in some situations the index value of the recommended bit rate may correspond to more than one audio bit rate for a certain audio codecs.
  • the wireless device then faces a choice of what bit rate to select. If the wireless device selects a higher bit rate allowed for a particular bit rate recommendation, performance may suffer if downlink wireless channel conditions worsen. If the wireless device selects a lower bit rate allowed for particular bit rate recommendation, the wireless device may not efficiently utilize available channel capacity.
  • Various aspects include systems and methods for managing a downlink bit rate that may be performed by a processor of a wireless device.
  • Various aspects may include receiving, from a remote wireless device, a downlink signal at a transmission bit rate, determining whether a data loss rate of the downlink signal exceeds a loss rate downswitch threshold, and sending a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate exceeds the loss rate downswitch threshold.
  • determining whether the data loss rate of the downlink signal exceeds the loss rate downswitch threshold further may include initializing a first timer in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold, determining whether the data loss rate of the downlink signal exceeds the loss rate downswitch threshold in response to expiration of the timer, and sending the message to the remote wireless device requesting the decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold after expiration of the first timer.
  • Some aspects may include determining whether the data loss rate of the downlink signal is less than a loss rate upswitch threshold, and sending a message to the remote wireless device requesting an increase in the transmission bit rate in response to determining that the data loss rate is less than the loss rate downswitch threshold.
  • determining whether the data loss rate of the downlink signal is less than the loss rate upswitch threshold further may include initializing a second timer in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold, determining whether the data loss rate of the downlink signal is less than the loss rate upswitch threshold in response to expiration of the second timer, and sending a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold after expiration of the second timer.
  • Some aspects may include receiving a downlink bit rate recommendation from a base station, and determining the transmission bit rate based on the received downlink bit rate recommendation. Some aspects may include determining whether a channel-aware mode of operation is a highest available mode of operation corresponding to a downlink bit rate recommendation received from a base station, and employing the channel-aware mode of operation to receive the downlink signal in response to determining that the channel-aware mode of operation is the highest available mode of operation corresponding to the downlink bit rate recommendation.
  • Some aspects may include determining whether the data loss rate of the downlink signal exceeds a data loss rate threshold in response to determining that the channel-aware mode of operation is not the highest available mode of operation corresponding to the downlink bit rate recommendation, and employing the channel-aware mode of operation to receive the downlink signal in response to determining that the data loss rate of the downlink signal does not exceed the data loss rate threshold.
  • Further aspects may include a wireless device having a processor configured to perform one or more operations of the methods summarized above. Further aspects may include a non-transitory processor-readable storage medium having stored thereon processor-executable instructions configured to cause a processor of a wireless device to perform operations of the methods summarized above. Further aspects include a wireless device having means for performing functions of the methods summarized above. Further aspects include a system on chip for use in a wireless device that includes a processor configured to perform one or more operations of the methods summarized above. Further aspects include a system in a package that includes two systems on chip for use in a wireless device that includes a processor configured to perform one or more operations of the methods summarized above.
  • FIG. 1 is a system block diagram illustrating an example communication system suitable for implementing any of the various embodiments.
  • FIG. 2 is a component block diagram illustrating an example computing system suitable for implementing any of the various embodiments.
  • FIG. 3 is a component block diagram illustrating a software architecture including a radio protocol stack for the user and control planes in wireless communications suitable for implementing any of the various embodiments.
  • FIG. 4 is a component block diagram illustrating a system configured to manage a downlink bit rate in accordance with various embodiments.
  • FIG. 5 is a process flow diagram illustrating a method that may be performed by a processor of a mobile device for managing a downlink bit rate according to various embodiments.
  • FIGS. 6A–6E are processor flow diagrams illustrating operations that may be performed by a processor of a mobile device as part of a method for managing a downlink bit rate according to various embodiments.
  • FIG. 7 is a component block diagram of a network computing device suitable for use with various embodiments.
  • FIG. 8 is a component block diagram of a wireless device suitable for use with various embodiments.
  • wireless device is used herein to refer to any one or all of wireless router devices, wireless appliances, cellular telephones, smartphones, portable computing devices, personal or mobile multi-media players, laptop computers, tablet computers, smartbooks, ultrabooks, palmtop computers, wireless electronic mail receivers, multimedia Internet-enabled cellular telephones, medical devices and equipment, biometric sensors/devices, wearable devices including smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart rings, smart bracelets, etc. ) , entertainment devices (e.g., wireless gaming controllers, music and video players, satellite radios, etc.
  • wireless-network enabled Internet of Things (IoT) devices including smart meters/sensors, industrial manufacturing equipment, large and small machinery and appliances for home or enterprise use, wireless communication elements within autonomous and semiautonomous vehicles, wireless devices affixed to or incorporated into various mobile platforms, global positioning system devices, and similar electronic devices that include a memory, wireless communication components and a programmable processor.
  • IoT Internet of Things
  • SOC system on chip
  • a single SOC may contain circuitry for digital, analog, mixed-signal, and radio-frequency functions.
  • a single SOC may also include any number of general purpose and/or specialized processors (digital signal processors, modem processors, video processors, etc. ) , memory blocks (e.g., ROM, RAM, Flash, etc. ) , and resources (e.g., timers, voltage regulators, oscillators, etc. ) .
  • SOCs may also include software for controlling the integrated resources and processors, as well as for controlling peripheral devices.
  • SIP system in a package
  • a SIP may include a single substrate on which multiple IC chips or semiconductor dies are stacked in a vertical configuration.
  • the SIP may include one or more multi-chip modules (MCMs) on which multiple ICs or semiconductor dies are packaged into a unifying substrate.
  • MCMs multi-chip modules
  • a SIP may also include multiple independent SOCs coupled together via high speed communication circuitry and packaged in close proximity, such as on a single motherboard or in a single wireless device. The proximity of the SOCs facilitates high speed communications and the sharing of memory and resources.
  • a base station may detect radio link conditions and send a bit rate recommendation to the wireless device.
  • the bit rate recommendation typically includes an index value that maps to a corresponding recommended bit rate.
  • the recommended bit rate may be defined as a physical layer bit rate including an audio payload and signaling overhead, for example, in kilobits per second. However, in some cases the index value may correspond to more than one audio bit rate for certain audio codecs.
  • a recommended bit rate of 24 kbps may correspond codec modes of operation of either 19.85 kbps or 18.25 kbps.
  • a recommended physical bit rate of 20 kbps may correspond to codec modes of operation including 15.85 kbps, 14.25 kbps, and 12.65 kbps.
  • the wireless device must then select a bit rate for downlink (or for uplink) communication. If the wireless device selects a higher bit rate allowed for a particular bit rate recommendation, communication link and application performance may be very good temporarily, but performance may suffer if downlink wireless channel conditions worsen. If the wireless device selects a lower bit rate allowed for particular bit rate recommendation, the wireless device may not efficiently utilize available channel capacity.
  • the wireless device may receive a downlink signal from wireless communication network (e.g., from a base station) including packets sent by a remote wireless device at a transmission bit rate.
  • the wireless device may determine a data loss rate of the received downlink signal.
  • the wireless device may determine a Real- time Transport Protocol (RTP) packet loss rate.
  • RTP Real- time Transport Protocol
  • the wireless device may be configured with memory storing a loss rate upswitch threshold and/or a loss rate downswitch threshold.
  • the wireless device may determine whether the data loss rate of the downlink signal exceeds the loss rate downswitch threshold, and may send a message (e.g., an RTP Change Mode Request (CMR) message) to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate exceeds the loss rate downswitch threshold.
  • the wireless device may determine whether the data loss rate of the downlink signal is less than the loss rate upswitch threshold, and may send a message to the remote wireless device via the wireless communication system requesting an increase in the transmission bit rate in response to determining that the data loss rate is less than the loss rate downswitch threshold. In this way, the wireless device may dynamically adapt the downlink audio bit rate to wireless link conditions based on observations in data loss rates.
  • CMR RTP Change Mode Request
  • the wireless device may use one or more timers to mitigate unnecessarily rapid changes to the downlink audio bit rate (e.g., to avoid “thrashing” ) .
  • the wireless device may initialize a first timer in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold.
  • the wireless device may determine whether the data loss rate of the downlink signal exceeds the loss rate downswitch threshold in response to expiration of the timer, and send the message to the remote wireless device requesting the decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold after expiration of the first timer.
  • the wireless device may initialize a second timer in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold. In some embodiments, the wireless device may determine whether the data loss rate of the downlink signal is less than the loss rate upswitch threshold in response to expiration of the second timer, and send a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold after expiration of the second timer.
  • the wireless device may determine whether a channel-aware mode of operation is a highest available mode of operation corresponding to a downlink bit rate recommendation received from a base station. In such embodiments, the wireless device may employ the channel-aware mode of operation to receive the downlink signal in response to determining that the channel-aware mode of operation is the highest mode of operation corresponding to the downlink bit rate recommendation.
  • the wireless device in response to determining that the channel-aware mode of operation is not the highest mode of operation corresponding to the downlink bit rate recommendation, may determine whether the data loss rate of the downlink signal exceeds a data loss rate threshold. In such embodiments, the wireless device may employ the channel-aware mode of operation to receive the downlink signal in response to determining that the data loss rate of the downlink signal does not exceed the data loss rate threshold.
  • the data loss rate threshold used to evaluate whether to employ the channel-aware mode of operation may be a different threshold than the data loss rate threshold used to evaluate whether to request an increase or decrease to the transmission data rate.
  • FIG. 1 is a system block diagram illustrating an example communication system 100 suitable for implementing any of the various embodiments.
  • the communications system 100 may be an 5G NR network, or any other suitable network such as an LTE network.
  • the communications system 100 may include a heterogeneous network architecture that includes a core network 140 and a variety of mobile devices (illustrated as wireless device 120a-120e in FIG. 1) .
  • the communications system 100 may also include a number of base stations (illustrated as the BS 110a, the BS 110b, the BS 110c, and the BS 110d) and other network entities.
  • a base station is an entity that communicates with wireless devices (mobile devices) , and also may be referred to as an NodeB, a Node B, an LTE evolved nodeB (eNB) , an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio base station (NR BS) , a 5G NodeB (NB) , a Next Generation NodeB (gNB) , or the like.
  • Each base station may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a base station, a base station subsystem serving this coverage area, or a combination thereof, depending on the context in which the term is used.
  • a base station 110a-110d may provide communication coverage for a macro cell, a pico cell, a femto cell, another type of cell, or a combination thereof.
  • a macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by mobile devices with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by mobile devices with service subscription.
  • a femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by mobile devices having association with the femto cell (for example, mobile devices in a closed subscriber group (CSG) ) .
  • a base station for a macro cell may be referred to as a macro BS.
  • a base station for a pico cell may be referred to as a pico BS.
  • a base station for a femto cell may be referred to as a femto BS or a home BS.
  • a base station 110a may be a macro BS for a macro cell 102a
  • a base station 110b may be a pico BS for a pico cell 102b
  • a base station 110c may be a femto BS for a femto cell 102c.
  • a base station 110a-110d may support one or multiple (for example, three) cells.
  • eNB base station
  • NR BS NR BS
  • gNB gNode B
  • AP AP
  • node B node B
  • 5G NB 5G NB
  • cell may be used interchangeably herein.
  • a cell may not be stationary, and the geographic area of the cell may move according to the location of a mobile base station.
  • the base stations 110a-110d may be interconnected to one another as well as to one or more other base stations or network nodes (not illustrated) in the communications system 100 through various types of backhaul interfaces, such as a direct physical connection, a virtual network, or a combination thereof using any suitable transport network
  • the base station 110a-110d may communicate with the core network 140 over a wired or wireless communication link 126.
  • the wireless device 120a-120e may communicate with the base station 110a-110d over a wireless communication link 122.
  • the wired communication link 126 may use a variety of wired networks (e.g., Ethernet, TV cable, telephony, fiber optic and other forms of physical network connections) that may use one or more wired communication protocols, such as Ethernet, Point-To-Point protocol, High-Level Data Link Control (HDLC) , Advanced Data Communication Control Protocol (ADCCP) , and Transmission Control Protocol/Internet Protocol (TCP/IP) .
  • wired networks e.g., Ethernet, TV cable, telephony, fiber optic and other forms of physical network connections
  • wired communication protocols such as Ethernet, Point-To-Point protocol, High-Level Data Link Control (HDLC) , Advanced Data Communication Control Protocol (ADCCP) , and Transmission Control Protocol/Internet Protocol (TCP/IP) .
  • HDMI High-Level Data Link Control
  • ADCCP Advanced Data Communication Control Protocol
  • TCP/IP Transmission Control Protocol/Internet Protocol
  • the communications system 100 also may include relay stations (e.g., relay BS 110d) .
  • a relay station is an entity that can receive a transmission of data from an upstream station (for example, a base station or a mobile device) and send a transmission of the data to a downstream station (for example, a wireless device or a base station) .
  • a relay station also may be a mobile device that can relay transmissions for other wireless devices.
  • a relay station 110d may communicate with macro the base station 110a and the wireless device 120d in order to facilitate communication between the base station 110a and the wireless device 120d.
  • a relay station also may be referred to as a relay base station, a relay base station, a relay, etc.
  • the communications system 100 may be a heterogeneous network that includes base stations of different types, for example, macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of base stations may have different transmit power levels, different coverage areas, and different impacts on interference in communications system 100. For example, macro base stations may have a high transmit power level (for example, 5 to 40 Watts) whereas pico base stations, femto base stations, and relay base stations may have lower transmit power levels (for example, 0.1 to 2 Watts) .
  • macro base stations may have a high transmit power level (for example, 5 to 40 Watts) whereas pico base stations, femto base stations, and relay base stations may have lower transmit power levels (for example, 0.1 to 2 Watts) .
  • a network controller 130 may couple to a set of base stations and may provide coordination and control for these base stations.
  • the network controller 130 may communicate with the base stations via a backhaul.
  • the base stations also may communicate with one another, for example, directly or indirectly via a wireless or wireline backhaul.
  • the wireless devices 120a, 120b, 120c may be dispersed throughout communications system 100, and each wireless device may be stationary or mobile.
  • a wireless device also may be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, etc.
  • a macro base station 110a may communicate with the communication network 140 over a wired or wireless communication link 126.
  • the wireless devices 120a, 120b, 120c may communicate with a base station 110a-110d over a wireless communication link 122.
  • the wireless communication links 122, 124 may include a plurality of carrier signals, frequencies, or frequency bands, each of which may include a plurality of logical channels.
  • the wireless communication links 122 and 124 may utilize one or more radio access technologies (RATs) .
  • RATs radio access technologies
  • Examples of RATs that may be used in a wireless communication link include 3GPP LTE, 3G, 4G, 5G (e.g., NR) , GSM, Code Division Multiple Access (CDMA) , Wideband Code Division Multiple Access (WCDMA) , Worldwide Interoperability for Microwave Access (WiMAX) , Time Division Multiple Access (TDMA) , and other mobile telephony communication technologies cellular RATs.
  • RATs that may be used in one or more of the various wireless communication links 122, 124 within the communication system 100 include medium range protocols such as Wi-Fi, LTE-U, LTE-Direct, LAA, MuLTEfire, and relatively short range RATs such as ZigBee, Bluetooth, and Bluetooth Low Energy (LE) .
  • medium range protocols such as Wi-Fi, LTE-U, LTE-Direct, LAA, MuLTEfire
  • relatively short range RATs such as ZigBee, Bluetooth, and Bluetooth Low Energy (LE) .
  • Certain wireless networks utilize orthogonal frequency division multiplexing (OFDM) on the downlink and single-carrier frequency division multiplexing (SC-FDM) on the uplink.
  • OFDM and SC-FDM partition the system bandwidth into multiple (K) orthogonal subcarriers, which are also commonly referred to as tones, bins, etc.
  • K orthogonal subcarriers
  • Each subcarrier may be modulated with data.
  • modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM.
  • the spacing between adjacent subcarriers may be fixed, and the total number of subcarriers (K) may be dependent on the system bandwidth.
  • the spacing of the subcarriers may be 15 kHz and the minimum resource allocation (called a “resource block” ) may be 12 subcarriers (or 180 kHz) . Consequently, the nominal Fast File Transfer (FFT) size may be equal to 128, 256, 512, 1024 or 2048 for system bandwidth of 1.25, 2.5, 5, 10 or 20 megahertz (MHz) , respectively.
  • the system bandwidth may also be partitioned into subbands. For example, a subband may cover 1.08 MHz (i.e., 6 resource blocks) , and there may be 1, 2, 4, 8 or 16 subbands for system bandwidth of 1.25, 2.5, 5, 10 or 20 MHz, respectively.
  • NR new radio
  • 5G 5G network
  • NR may utilize OFDM with a cyclic prefix (CP) on the uplink (UL) and downlink (DL) and include support for half-duplex operation using time division duplex (TDD) .
  • CP cyclic prefix
  • TDD time division duplex
  • a single component carrier bandwidth of 100 MHz may be supported.
  • NR resource blocks may span 12 sub-carriers with a sub-carrier bandwidth of 75 kHz over a 0.1 millisecond (ms) duration.
  • Each radio frame may consist of 50 subframes with a length of 10 ms. Consequently, each subframe may have a length of 0.2 ms.
  • Each subframe may indicate a link direction (i.e., DL or UL) for data transmission and the link direction for each subframe may be dynamically switched.
  • Each subframe may include DL/UL data as well as DL/UL control data.
  • Beamforming may be supported and beam direction may be dynamically configured.
  • Multiple Input Multiple Output (MIMO) transmissions with precoding may also be supported.
  • MIMO configurations in the DL may support up to eight transmit antennas with multi-layer DL transmissions up to eight streams and up to two streams per wireless device. Multi-layer transmissions with up to 2 streams per wireless device may be supported. Aggregation of multiple cells may be supported with up to eight serving cells.
  • NR may support a different air interface, other than an OFDM-based air interface.
  • MTC and eMTC mobile devices include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that may communicate with a base station, another device (for example, remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (for example, a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • Some mobile devices may be considered Internet-of-Things (IoT) devices or may be implemented as NB-IoT (narrowband internet of things) devices.
  • a wireless device 120a-e may be included inside a housing that houses components of the wireless device, such as processor components, memory components, similar components, or a combination thereof.
  • any number of communications systems and any number of wireless networks may be deployed in a given geographic area.
  • Each communications system and wireless network may support a particular radio access technology (RAT) and may operate on one or more frequencies.
  • RAT also may be referred to as a radio technology, an air interface, etc.
  • a frequency also may be referred to as a carrier, a frequency channel, etc.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between communications systems of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more mobile devices 120a-e may communicate directly using one or more sidelink channels 124 (for example, without using a base station 110 as an intermediary to communicate with one another) .
  • the wireless devices 120a-e may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or similar protocol) , a mesh network, or similar networks, or combinations thereof.
  • V2X vehicle-to-everything
  • the wireless device 120a-e may perform scheduling operations, resource selection operations, as well as other operations described elsewhere herein as being performed by the base station 110a
  • FIG. 2 is a component block diagram illustrating an example computing system 200 suitable for implementing any of the various embodiments.
  • Various embodiments may be implemented on a number of single processor and multiprocessor computer systems, including a system-on-chip (SOC) or system in a package (SIP) .
  • SOC system-on-chip
  • SIP system in a package
  • the illustrated example computing system 200 (which may be a SIP in some embodiments) includes two SOCs 202, 204, coupled to a clock 206, a voltage regulator 208, and a wireless transceiver 266 configured to send and receive wireless communications via an antenna (not shown) to/from wireless devices, such as a base station 110a.
  • the first SOC 202 operate as central processing unit (CPU) of the wireless device that carries out the instructions of software application programs by performing the arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
  • the second SOC 204 may operate as a specialized processing unit.
  • the second SOC 204 may operate as a specialized 5G processing unit responsible for managing high volume, high speed (e.g., 5 Gbps, etc. ) , and/or very high frequency short wave length (e.g., 28 GHz mmWave spectrum, etc. ) communications.
  • high speed e.g., 5 Gbps, etc.
  • very high frequency short wave length e.g., 28 GHz mmWave spectrum, etc.
  • the first SOC 202 may include a digital signal processor (DSP) 210, a modem processor 212, a graphics processor 214, an application processor 216, one or more coprocessors 218 (e.g., vector co-processor) connected to one or more of the processors, memory 220, custom circuity 222, system components and resources 224, an interconnection/bus module 226, one or more temperature sensors 230, a thermal management unit 232, and a thermal power envelope (TPE) component 234.
  • DSP digital signal processor
  • modem processor 212 e.g., a graphics processor 214
  • an application processor 216 e.g., one or more coprocessors 218 (e.g., vector co-processor) connected to one or more of the processors, memory 220, custom circuity 222, system components and resources 224, an interconnection/bus module 226, one or more temperature sensors 230, a thermal management unit 232, and a thermal power envelope (TPE) component 234.
  • TPE
  • the second SOC 204 may include a 5G modem processor 252, a power management unit 254, an interconnection/bus module 264, a plurality of mmWave transceivers 256, memory 258, and various additional processors 260, such as an applications processor, packet processor, etc.
  • Each processor 210, 212, 214, 216, 218, 252, 260 may include one or more cores, and each processor/core may perform operations independent of the other processors/cores.
  • the first SOC 202 may include a processor that executes a first type of operating system (e.g., FreeBSD, LINUX, OS X, etc. ) and a processor that executes a second type of operating system (e.g., MICROSOFT WINDOWS 10) .
  • a first type of operating system e.g., FreeBSD, LINUX, OS X, etc.
  • a second type of operating system e.g., MICROSOFT WINDOWS 10.
  • processors 210, 212, 214, 216, 218, 252, 260 may be included as part of a processor cluster architecture (e.g., a synchronous processor cluster architecture, an asynchronous or heterogeneous processor cluster architecture, etc. ) .
  • a processor cluster architecture e.g., a synchronous processor cluster architecture, an asynchronous or heterogeneous processor cluster architecture, etc.
  • the first and second SOC 202, 204 may include various system components, resources and custom circuitry for managing sensor data, analog-to-digital conversions, wireless data transmissions, and for performing other specialized operations, such as decoding data packets and processing encoded audio and video signals for rendering in a web browser.
  • the system components and resources 224 of the first SOC 202 may include power amplifiers, voltage regulators, oscillators, phase-locked loops, peripheral bridges, data controllers, memory controllers, system controllers, access ports, timers, and other similar components used to support the processors and software clients running on a wireless device.
  • the system components and resources 224 and/or custom circuitry 222 may also include circuitry to interface with peripheral devices, such as cameras, electronic displays, wireless communication devices, external memory chips, etc.
  • the first and second SOC 202, 204 may communicate via interconnection/bus module 250.
  • the various processors 210, 212, 214, 216, 218, may be interconnected to one or more memory elements 220, system components and resources 224, and custom circuitry 222, and a thermal management unit 232 via an interconnection/bus module 226.
  • the processor 252 may be interconnected to the power management unit 254, the mmWave transceivers 256, memory 258, and various additional processors 260 via the interconnection/bus module 264.
  • the interconnection/bus module 226, 250, 264 may include an array of reconfigurable logic gates and/or implement a bus architecture (e.g., CoreConnect, AMBA, etc. ) . Communications may be provided by advanced interconnects, such as high-performance networks-on chip (NoCs) .
  • NoCs high-performance networks-on chip
  • the first and/or second SOCs 202, 204 may further include an input/output module (not illustrated) for communicating with resources external to the SOC, such as a clock 206 and a voltage regulator 208.
  • resources external to the SOC e.g., clock 206, voltage regulator 208 may be shared by two or more of the internal SOC processors/cores.
  • various embodiments may be implemented in a wide variety of computing systems, which may include a single processor, multiple processors, multicore processors, or any combination thereof.
  • FIG. 3 is a component block diagram illustrating a software architecture 300 including a radio protocol stack for the user and control planes in wireless communications suitable for implementing any of the various embodiments.
  • the wireless device 320 may implement the software architecture 300 to facilitate communication between a wireless device 320 (e.g., the wireless device 120a-120e, 200) and the base station 350 (e.g., the base station 110a) of a communication system (e.g., 100) .
  • layers in software architecture 300 may form logical connections with corresponding layers in software of the base station 350.
  • the software architecture 300 may be distributed among one or more processors (e.g., the processors 212, 214, 216, 218, 252, 260) .
  • the software architecture 300 may include multiple protocol stacks, each of which may be associated with a different SIM (e.g., two protocol stacks associated with two SIMs, respectively, in a dual-SIM wireless communication device) . While described below with reference to LTE communication layers, the software architecture 300 may support any of variety of standards and protocols for wireless communications, and/or may include additional protocol stacks that support any of variety of standards and protocols wireless communications.
  • the software architecture 300 may include a Non-Access Stratum (NAS) 302 and an Access Stratum (AS) 304.
  • the NAS 302 may include functions and protocols to support packet filtering, security management, mobility control, session management, and traffic and signaling between a SIM (s) of the wireless device (e.g., SIM (s) 204) and its core network 140.
  • the AS 304 may include functions and protocols that support communication between a SIM (s) (e.g., SIM (s) 204) and entities of supported access networks (e.g., a base station) .
  • the AS 304 may include at least three layers (Layer 1, Layer 2, and Layer 3) , each of which may contain various sub-layers.
  • Layer 1 (L1) of the AS 304 may be a physical layer (PHY) 306, which may oversee functions that enable transmission and/or reception over the air interface via a wireless transceiver (e.g., 266) .
  • PHY physical layer
  • Examples of such physical layer 306 functions may include cyclic redundancy check (CRC) attachment, coding blocks, scrambling and descrambling, modulation and demodulation, signal measurements, MIMO, etc.
  • the physical layer may include various logical channels, including the Physical Downlink Control Channel (PDCCH) and the Physical Downlink Shared Channel (PDSCH) .
  • PDCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • Layer 2 (L2) of the AS 304 may be responsible for the link between the wireless device 320 and the base station 350 over the physical layer 306.
  • Layer 2 may include a media access control (MAC) sublayer 308, a radio link control (RLC) sublayer 310, and a packet data convergence protocol (PDCP) 312 sublayer, each of which form logical connections terminating at the base station 350.
  • MAC media access control
  • RLC radio link control
  • PDCP packet data convergence protocol
  • Layer 3 (L3) of the AS 304 may include a radio resource control (RRC) sublayer 3.
  • RRC radio resource control
  • the software architecture 300 may include additional Layer 3 sublayers, as well as various upper layers above Layer 3.
  • the RRC sublayer 313 may provide functions INCLUDING broadcasting system information, paging, and establishing and releasing an RRC signaling connection between the wireless device 320 and the base station 350.
  • the PDCP sublayer 312 may provide uplink functions including multiplexing between different radio bearers and logical channels, sequence number addition, handover data handling, integrity protection, ciphering, and header compression.
  • the PDCP sublayer 312 may provide functions that include in-sequence delivery of data packets, duplicate data packet detection, integrity validation, deciphering, and header decompression.
  • the RLC sublayer 310 may provide segmentation and concatenation of upper layer data packets, retransmission of lost data packets, and Automatic Repeat Request (ARQ) .
  • ARQ Automatic Repeat Request
  • the RLC sublayer 310 functions may include reordering of data packets to compensate for out-of-order reception, reassembly of upper layer data packets, and ARQ.
  • MAC sublayer 308 may provide functions including multiplexing between logical and transport channels, random access procedure, logical channel priority, and hybrid-ARQ (HARQ) operations.
  • the MAC layer functions may include channel mapping within a cell, de-multiplexing, discontinuous reception (DRX) , and HARQ operations.
  • the software architecture 300 may provide functions to transmit data through physical media
  • the software architecture 300 may further include at least one host layer 314 to provide data transfer services to various applications in the wireless device 320.
  • application-specific functions provided by the at least one host layer 314 may provide an interface between the software architecture and the general purpose processor 206.
  • the software architecture 300 may include one or more higher logical layer (e.g., transport, session, presentation, application, etc. ) that provide host layer functions.
  • the software architecture 300 may include a network layer (e.g., the Internet Protocol (IP) layer) in which a logical connection terminates at a packet data network (PDN) gateway (PGW) .
  • the software architecture 300 may include an application layer in which a logical connection terminates at another device (e.g., end user device, server, etc. ) .
  • the software architecture 300 may further include in the AS 304 a hardware interface 316 between the physical layer 306 and the communication hardware (e.g., one or more radio frequency (RF) transceivers) .
  • RF radio frequency
  • FIG. 4 is a component block diagram illustrating a system 400 configured to manage a downlink bit rate performed by a processor of a wireless device in accordance with various embodiments.
  • system 400 may include a wireless device 402 and/or one or more remote wireless devices 404 configured to communicate via a wireless communication network 424.
  • examples of the wireless device 402 and remote wireless device (s) 404 include wireless device 120a-120e, 200, 320.
  • the wireless communication network 424 may include base stations 110a-110d, 350 and other network devices and systems as illustrated in FIG. 1.
  • the wireless device 402 may include one or more processors 428 coupled to electronic storage 426 and a wireless transceiver 266.
  • the wireless transceiver may be configured to receive messages to be sent in uplink transmissions from the one or more processors 428, and to transmit such messages via an antenna (not shown) to a wireless communication network 424 for relay to remote wireless devices 404. Similarly, the wireless transceiver may be configured to receive messages from remote wireless devices in downlink transmissions from the wireless communication network 424 and pass the messages (e.g., via a modem that demodulate the messages) to the one or more processors 428.
  • Machine-readable instructions 406 may include one or more instruction modules.
  • the instruction modules may include computer program modules.
  • the instruction modules may include one or more of a downlink signal receiving module 408, a data loss rate determination module 410, a messaging module 412, a timer module 414, transmission bit rate determination module 416, a codec/mode selection module 418, and/or other instruction modules.
  • the downlink signal receiving module 408 may be configured to receive, from a remote wireless device, a downlink signal at a transmission bit rate.
  • the data loss rate determination module 410 may be configured to determine whether a data loss rate of the downlink signal exceeds a loss rate downswitch threshold.
  • the data loss rate determination module 410 may be configured to determine whether the data loss rate of the downlink signal exceeds the loss rate downswitch threshold in response to expiration of the timer.
  • the data loss rate determination module 410 may be configured to determine whether the data loss rate of the downlink signal is less than a loss rate upswitch threshold.
  • the data loss rate determination module 410 may further be configured to determine whether the data loss rate of the downlink signal is less than the loss rate upswitch threshold in response to expiration of the second timer.
  • the data loss rate determination module 410 may also be configured to determine whether the data loss rate of the downlink signal exceeds a data loss rate threshold in response to determining that the channel-aware mode of operation is not the highest mode of operation corresponding to the downlink bit rate recommendation.
  • the messaging module 412 may be configured to send a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate exceeds the loss rate downswitch threshold.
  • the messaging module 412 may be configured to send the message to the remote wireless device requesting the decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold after expiration of the first timer.
  • the messaging module 412 may be configured to send a message to the remote wireless device requesting an increase in the transmission bit rate in response to determining that the data loss rate is less than the loss rate downswitch threshold.
  • the messaging module 412 may be configured to send a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold after expiration of the second timer.
  • the timer module 414 may be configured to initialize a first timer in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold.
  • the timer module 414 may also be configured to initialize a second timer in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold.
  • the transmission bit rate determination module 418 may be configured to determine the transmission bit rate based on the received downlink bit rate recommendation.
  • the codec/mode determination module 420 may be configured to determine whether a channel-aware mode of operation is a highest mode of operation corresponding to a downlink bit rate recommendation received from a base station.
  • the codec/mode determination module 420 may be configured to receive a downlink bit rate recommendation from a base station.
  • the codec/mode determination module 420 may be configured to employ the channel-aware mode of operation to receive the downlink signal in response to determining that the channel-aware mode of operation is the highest mode of operation corresponding to the downlink bit rate recommendation.
  • the codec/mode determination module 420 may be configured to employ the channel-aware mode of operation to receive the downlink signal in response to determining that the data loss rate of the downlink signal does not exceed the data loss rate threshold.
  • the wireless device 402 and remote wireless device (s) 404 may be operatively linked via wireless communication links. This is not intended to be limiting, and the scope of this disclosure includes implementations in which the wireless device 402 and remote wireless device (s) 404 may be operatively linked via some other communication media.
  • the remote wireless device (s) 404 may include one or more processors configured to execute computer program modules.
  • the computer program modules may be configured to enable an expert or user associated with a given remote wireless device 404 to interface with system 400 and/or external resources 430, and/or provide other functionality attributed herein to the remote wireless device (s) 404.
  • the wireless device 402 may include an electronic storage 426, one or more processors 428, and/or other components.
  • the wireless device 402 may include communication lines, or ports to enable the exchange of information with a network and/or other computing platforms.
  • the illustration of the wireless device 402 in FIG. 4 is not intended to be limiting.
  • the wireless device 402 may include a plurality of hardware, software, and/or firmware components operating together to provide the functionality attributed herein to the wireless device 402.
  • the electronic storage 426 may include non-transitory storage media that electronically stores information.
  • the electronic storage media of the electronic storage 426 may include one or both of system storage that is provided integrally (i.e., substantially non-removable) with wireless device 402 and/or removable storage that is removably connectable to wireless device 402 via, for example, a port (e.g., a universal serial bus (USB) port, a firewire port, etc. ) or a drive (e.g., a disk drive, etc. ) .
  • the electronic storage 426 may include one or more of optically readable storage media (e.g., optical disks, etc.
  • Electronic storage 426 may include one or more virtual storage resources (e.g., cloud storage, a virtual private network, and/or other virtual storage resources) .
  • the electronic storage 426 may store software algorithms, information determined by processor (s) 428, information received from computing platform (s) 402, information received from remote wireless device (s) 404, and/or other information that enables the wireless device 402 to function as described herein.
  • Processor (s) 428 may be configured to provide information processing capabilities in the wireless device 402.
  • processor (s) 428 may include one or more of a digital processor, an analog processor, a digital circuit designed to process information, an analog circuit designed to process information, a state machine, and/or other mechanisms for electronically processing information.
  • processor (s) 428 is shown in FIG. 4 as a single entity, this is for illustrative purposes only.
  • processor (s) 428 may include a plurality of processing units. These processing units may be physically located within the same device, or processor (s) 428 may represent processing functionality of a plurality of devices operating in coordination.
  • Processor (s) 428 may be configured to execute modules 408–418, and/or other modules.
  • Processor (s) 434 may be configured to execute modules 408–418, and/or other modules by software; hardware; firmware; some combination of software, hardware, and/or firmware; and/or other mechanisms for configuring processing capabilities on the processor (s) 428.
  • module may refer to any component or set of components that perform the functionality attributed to the module. This may include one or more physical processors during execution of processor readable instructions, the processor readable instructions, circuitry, hardware, storage media, or any other components.
  • modules 408–418 may provide more or less functionality than is described.
  • processor (s) 428 may be configured to execute one or more additional modules that may perform some or all of the functionality attributed below to one of the modules 408–418.
  • FIG. 5 is a process flow diagram illustrating a method 500 that may be performed by a processor of a mobile device for managing a downlink bit rate according to various embodiments.
  • the operations of the method 500 may be performed by a processor (such as the processor 210, 212, 214, 216, 218, 252, 260, 428) of a wireless device (such as the wireless device 120a–120e, 200, 320, 402) .
  • the processor may receive, from a remote wireless device, a downlink signal at a transmission bit rate.
  • the processor may receive a downlink bit rate recommendation from a base station.
  • the processor may determine the transmission bit rate based on the received downlink bit rate recommendation.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the processor may determine whether a data loss rate of the downlink signal exceeds a loss rate downswitch threshold.
  • the wireless device may determine a Real-time Transport Protocol (RTP) packet loss rate.
  • the processor may determine the data loss rate as a percentage of transmitted and/or downlink data (e.g., 1%, 2%, etc. ) .
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may perform operations including sending a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate exceeds the loss rate downswitch threshold.
  • the processor may send a message using or consistent with a transport protocol used to transmit the downlink data.
  • the processor may send may an RTP CMR message to the remote wireless device.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the method 500 may be repeated continuously or periodically as the processor may again perform the operations of block 502.
  • FIGS. 6A–6E are process flow diagrams illustrating operations 600a–600e that may be performed by a processor of a wireless device as part of the method 500 for managing a downlink bit rate according to various embodiments.
  • the operations 600a–600e may be performed by a processor (such as the processor 210, 212, 214, 216, 218, 252, 260, 428) of a wireless device (such as the wireless device 120a–120e, 200, 320, 402) .
  • the processor may initialize a first timer in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold in block 602. For example, the processor may initialize the timer to mitigate unnecessarily rapid changes to the downlink audio bit rate.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may determine whether the data loss rate of the downlink signal exceeds the loss rate downswitch threshold in response to expiration of the timer. In some embodiments, the processor may determine whether the data loss rate of the downlink signal exceeds or is equal to the loss rate downswitch threshold.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may send the message to the remote wireless device requesting the decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal exceeds the loss rate downswitch threshold after expiration of the first timer.
  • the processor may send may an RTP CMR message to the remote wireless device.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the processor may then perform the operations of the method 500 beginning with block 502 as described.
  • the processor may determine whether the data loss rate of the downlink signal is less than a loss rate upswitch threshold in block 608. In some embodiments, the processor may determine whether the data loss rate of the downlink signal is less than or equal to the loss rate upswitch threshold.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may perform operations including sending a message to the remote wireless device requesting an increase in the transmission bit rate in response to determining that the data loss rate is less than the loss rate downswitch threshold.
  • the processor may send may an RTP CMR message to the remote wireless device.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the processor may then perform the operations of the method 500 beginning with block 502 as described.
  • the processor may initialize a second timer in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold in block 612.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may determine whether the data loss rate of the downlink signal is less than the loss rate upswitch threshold in response to expiration of the second timer. In some embodiments, the processor may determine whether the data loss rate of the downlink signal is less than or equal to the loss rate upswitch threshold in response to expiration of the second timer.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may send a message to the remote wireless device requesting a decrease in the transmission bit rate in response to determining that the data loss rate of the downlink signal is less than the loss rate upswitch threshold after expiration of the second timer.
  • the processor may send may an RTP CMR message to the remote wireless device.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the processor may then perform the operations of the method 500 beginning with block 502 as described.
  • the processor of the wireless device may determine an initial transmission bit rate based on a downlink bit rate recommendation from the base station.
  • the processor may receive a downlink bit rate recommendation from a base station.
  • the downlink bit rate recommendation may be based on one or more aspects or parameters of the wireless communication link between the base station and the wireless device.
  • the downlink bit rate recommendation may include an index value that maps to a corresponding recommended bit rate.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the processor may determine the transmission bit rate based on the received downlink bit rate recommendation.
  • the processor may refer to a data structure, such as a lookup table (e.g., in a memory 220, 258, 426) , and may determine the transmission bit rate based on a bit rate that correlates two or maps to the index value.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to memory (e.g., 220, 258, 426) .
  • the processor may then perform the operations of the method 500 beginning with block 502 as described.
  • the processor may determine whether a channel-aware mode of operation is a highest available mode of operation corresponding to a downlink bit rate recommendation received from a base station in determination block 622.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may select (e.g., after negotiation) a codec capable of providing wideband audio, wideband voice or high definition (HD) voice quality, such as the Enhanced Voice Services (EVS) codec.
  • a codec capable of providing wideband audio, wideband voice or high definition (HD) voice quality
  • such codecs may include redundancy information in audio frames.
  • a channel-aware mode of operation may be available.
  • a non-EVS bit rate recommendation provided by the base station may correspond to an EVS bit rate.
  • a base station may provide a bit rate recommendation index of 5, corresponding to a maximum permitted non-EVS bit rate of 16 kilobits per second (kbps) , an example of which is illustrated in Table 1.
  • the non-EVS bit rate of 16 kbps may correspond to a maximum available EVS bit rate of 13.2 Kbps, an example of which is illustrated in Table 2.
  • the highest mode of operation available for EVS is less than or equal to 16 kbps, which corresponds to a 13.2 kbps Channel Aware Mode, as illustrated in Table 1.
  • the processor may employ the channel-aware mode of operation to receive the downlink signal in block 624.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) coupled to a wireless transceiver (e.g., 266) .
  • the processor may determine whether the data loss rate of the downlink signal exceeds a data loss rate threshold in determination block 626.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may select another codec or mode of operation in block 630.
  • the processor may select another codec such as AMR-WB or another suitable codec or mode of operation.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may employ the channel-aware mode of operation to receive the downlink signal in block 628.
  • Means for performing functions of the operations in block 502 may include the processor (e.g., 210, 212, 214, 216, 218, 252, 260, 428) .
  • the processor may perform the operations of the method 500 beginning with block 502 as described.
  • FIG. 7 is a component block diagram of a network computing device 700 suitable for use with various embodiments.
  • Such network computing devices may include at least the components illustrated in FIG. 7.
  • the network computing device 700 may include at least a processor 701 coupled to volatile memory 702 and a large capacity nonvolatile memory, such as a disk drive 703.
  • the network computing device 700 may also include a peripheral memory access device such as a floppy disc drive, compact disc (CD) or digital video disc (DVD) drive 706 coupled to the processor 701.
  • the network computing device 700 may also include network access ports 704 (or interfaces) coupled to the processor 701 for establishing data connections with a network, such as the Internet and/or a local area network coupled to other system computers and servers.
  • a network such as the Internet and/or a local area network coupled to other system computers and servers.
  • the network computing device 700 may include one or more antennas 707 for sending and receiving electromagnetic radiation that may be connected to a wireless communication link.
  • the network computing device 700 may include additional access ports, such as USB, Firewire, Thunderbolt, and the like for coupling to peripherals, external memory, or other devices.
  • FIG. 8 is a component block diagram of a wireless device 800 suitable for use with various embodiments.
  • Various embodiments may be implemented on a variety of wireless devices 800 (e.g., the wireless device 120a-120e, 200, 320) , an example of which is illustrated in FIG. 8 in the form of a smartphone.
  • the wireless device 800 may include a first SOC 202 (e.g., a SOC-CPU) coupled to a second SOC 204 (e.g., a 5G capable SOC) .
  • the first and second SOCs 202, 204 may be coupled to internal memory 426, 816, a display 812, and to a speaker 814.
  • the wireless device 800 may include an antenna 804 for sending and receiving electromagnetic radiation that may be connected to a wireless transceiver 266 coupled to one or more processors in the first and/or second SOCs 202, 204.
  • the wireless device 800 may also include menu selection buttons or rocker switches 820 for receiving user inputs.
  • the wireless device 800 may also include a sound encoding/decoding (codec) circuit 810, which digitizes sound received from a microphone into data packets suitable for wireless transmission and decodes received sound data packets to generate analog signals that are provided to the speaker to generate sound.
  • codec sound encoding/decoding
  • One or more of the processors in the first and second SOCs 202, 204, wireless transceiver 266 and codec 810 may include a digital signal processor (DSP) circuit (not shown separately) .
  • DSP digital signal processor
  • the processors of the wireless network computing device 700 and the wireless device 800 may be any programmable microprocessor, microcomputer or multiple processor chip or chips that can be configured by software instructions (applications) to perform a variety of functions, including the functions of the various embodiments described below.
  • multiple processors may be provided, such as one processor within an SOC 204 dedicated to wireless communication functions and one processor within an SOC 202 dedicated to running other applications.
  • software applications may be stored in the memory 426, 816 before they are accessed and loaded into the processor.
  • the processors may include internal memory sufficient to store the application software instructions.
  • a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a wireless device and the wireless device may be referred to as a component.
  • One or more components may reside within a process and/or thread of execution and a component may be localized on one processor or core and/or distributed between two or more processors or cores. In addition, these components may execute from various non-transitory computer readable media having various instructions and/or data structures stored thereon. Components may communicate by way of local and/or remote processes, function or procedure calls, electronic signals, data packets, memory read/writes, and other known network, computer, processor, and/or process related communication methodologies.
  • Such services and standards include, e.g., third generation partnership project (3GPP) , long term evolution (LTE) systems, third generation wireless mobile communication technology (3G) , fourth generation wireless mobile communication technology (4G) , fifth generation wireless mobile communication technology (5G) , global system for mobile communications (GSM) , universal mobile telecommunications system (UMTS) , 3GSM, general packet radio service (GPRS) , code division multiple access (CDMA) systems (e.g., cdmaOne, CDMA1020TM) , enhanced data rates for GSM evolution (EDGE) , advanced mobile phone system (AMPS) , digital AMPS (IS-136/TDMA) , evolution-data optimized (EV-DO) , digital enhanced cordless telecommunications (DECT) , Worldwide Interoperability for Microwave Access (WiMAX) , wireless local area network (WLAN)
  • 3GPP third generation partnership project
  • LTE long term evolution
  • 4G fourth generation wireless mobile communication technology
  • 5G fifth generation wireless mobile communication
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of receiver smart objects, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. Alternatively, some operations or methods may be performed by circuitry that is specific to a given function.
  • the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored as one or more instructions or code on a non-transitory computer-readable storage medium or non-transitory processor-readable storage medium.
  • the operations of a method or algorithm disclosed herein may be embodied in a processor-executable software module or processor-executable instructions, which may reside on a non-transitory computer-readable or processor-readable storage medium.
  • Non-transitory computer-readable or processor-readable storage media may be any storage media that may be accessed by a computer or a processor.
  • non-transitory computer-readable or processor-readable storage media may include RAM, ROM, EEPROM, FLASH memory, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage smart objects, or any other medium that may be used to store desired program code in the form of instructions or data structures and that may be accessed by a computer.
  • Disk and disc includes compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of non-transitory computer-readable and processor-readable media.
  • the operations of a method or algorithm may reside as one or any combination or set of codes and/or instructions on a non-transitory processor-readable storage medium and/or computer-readable storage medium, which may be incorporated into a computer program product.

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Abstract

L'invention concerne, selon des modes de réalisation, des systèmes et des procédés de gestion d'un débit binaire de liaison descendante réalisés par un processeur d'un dispositif sans fil. Dans des modes de réalisation, un processeur d'un dispositif sans fil peut recevoir, en provenance d'un dispositif sans fil à distance, un signal de liaison descendante à un débit binaire de transmission. Le processeur peut déterminer si un taux de perte de données du signal de liaison descendante dépasse un seuil de commutation descendante de taux de perte. Le processeur peut envoyer un message au dispositif sans fil à distance demandant une diminution du débit binaire de transmission en réponse à la détermination du fait que le taux de perte de données dépasse le seuil de commutation descendante de taux de perte.
PCT/CN2020/077701 2020-03-04 2020-03-04 Gestion d'un débit binaire de liaison descendante WO2021174435A1 (fr)

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