WO2018000320A1 - Gestion des autorisations de retransmission dans des dispositifs de communication mobile - Google Patents

Gestion des autorisations de retransmission dans des dispositifs de communication mobile Download PDF

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Publication number
WO2018000320A1
WO2018000320A1 PCT/CN2016/087884 CN2016087884W WO2018000320A1 WO 2018000320 A1 WO2018000320 A1 WO 2018000320A1 CN 2016087884 W CN2016087884 W CN 2016087884W WO 2018000320 A1 WO2018000320 A1 WO 2018000320A1
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WO
WIPO (PCT)
Prior art keywords
rat
uplink grant
detection window
mobile communication
communication device
Prior art date
Application number
PCT/CN2016/087884
Other languages
English (en)
Inventor
Ling Xie
Jiming Guo
Chetan BHARADWAJ
Xiaochen Chen
Lu Bai
Chintan Shirish SHAH
Amir Rajaee
Deepak KRISHNAMOORTHI
Ta-Yan Siu
Tim LIOU
Kunal SRIVASTAVA
Tom Chin
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2016/087884 priority Critical patent/WO2018000320A1/fr
Priority to TW106121951A priority patent/TW201807974A/zh
Publication of WO2018000320A1 publication Critical patent/WO2018000320A1/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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling

Definitions

  • Radio access technologies include Third Generation (3G) , Fourth Generation (4G) , Long Term Evolution (LTE) , Time Division Multiple Access (TDMA) , Frequency Division Multiple Access (FDMA) , Code Division Multiple Access (CDMA) , Wideband CDMA (WCDMA) , Time Division Synchronous CDMA (TD-SCDMA) , Global System for Mobile Communications (GSM) , Universal Mobile Telecommunications Systems (UMTS) , evolved High Speed Packet Access (HSPA+) , Dual-Cell High Speed Packet Access (DC-HSPA) , Evolution Data-Optimized (EV-DO) , Enhanced Data rates for GSM Evolution (EDGE) , and single carrier Radio Transmission Technologies (1xRTT) .
  • 3G Third Generation
  • 4G Long Term Evolution
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband CDMA
  • TD-SCDMA Time Division Synchronous CDMA
  • GSM Global System
  • a mobile communication device that includes one or more SIMs and connects to two or more separate mobile telephony networks using a shared radio frequency (RF) resource/radio may be termed a multi-SIM multi-standby (MSMS) communication device. Sharing the RF resource by concurrent radio access technologies (CRATs) may result in hardware cost savings.
  • CRATs concurrent radio access technologies
  • an MSMS communication device is a dual-SIM dual-standby (DSDS) communication device, which includes two SIM cards supporting two subscriptions associated with different RATs sharing one RF resource.
  • DSDS communication devices the separate subscriptions share the one RF resource to communicate with two separate mobile telephony networks on behalf of their respective subscriptions.
  • the other RAT is in stand-by mode and is not able to communicate using the RF resource.
  • Various examples include methods for handling retransmission grants in a mobile communication device, as well as mobile communication devices implementing such methods.
  • Various examples may include initiating a detection window upon detecting that a tune-away from a first RAT to a second RAT has started, determining whether the first RAT has received an uplink grant that includes a changed transport block (TB) size and no new data indicator (NDI) toggling, and handling the uplink grant and placing a corresponding radio link control (RLC) protocol data unit (PDU) in a RLC retransmission queue for fast retransmission in response to determining that the first RAT has received an uplink grant that includes a changed TB size and no NDI toggling.
  • RLC radio link control
  • determining whether the first RAT has received an uplink grant may include determining whether the first RAT has received an uplink grant within the detection window. Some examples may further include determining whether the detection window is still active and ignoring the uplink grant in response to determining that the detection window is not active. Some examples may further include determining whether a current hybrid automatic repeat request (HARQ) process is still active within the detection window, and ignoring the uplink grant in response to determining that the current HARQ process is not active within the detection window. Some examples may further include ignoring the uplink grant in response to determining that the first RAT has received an uplink grant that does not include a changed TB size nor has NDI toggling.
  • HARQ hybrid automatic repeat request
  • a duration of the detection window may be at least one active HARQ duration. In some examples, a duration of the detection window may be determined as a sum of a duration of the tune-away and at least one active HARQ duration. In some examples, the at least one active HARQ duration may be related to a frequency division duplex (FDD) timer or time division duplex (TDD) timer times (maxHARQ_Tx –1) , wherein maxHARQ_Tx, the FDD timer, and the TDD timer are configured by a radio resource control or a base station.
  • FDD frequency division duplex
  • TDD time division duplex
  • a mobile communication device configured to receive a subscriber identity module (SIM) including a memory, an RF resource configured to support a first RAT and a second RAT, and a processor configured to perform operations of the methods summarized above.
  • SIM subscriber identity module
  • Further examples include a mobile communication device that includes means for performing functions of the methods summarized above.
  • Further examples include a non-transitory processor-readable storage medium having stored thereon processor-executable software instructions configured to cause a processor of a mobile communication device to perform operations of the methods summarized above.
  • FIG. 1 is a communication system block diagram of mobile telephony networks suitable for use with various examples.
  • FIG. 2 is a component block diagram of a multi-SIM mobile communication device according to various examples.
  • FIG. 3 is a timing diagram illustrating handling of retransmission grants in a mobile communication device according to various examples.
  • FIG. 4 is a process flow diagram illustrating a method for handling retransmission grants in a mobile communication device according to various examples.
  • FIG. 5 is a component block diagram of a mobile communication device suitable for implementing some example methods.
  • the term “mobile communication device, ” “multi-SIM mobile communication device, ” or “multi-SIM device” refers to any one or all of cellular telephones, smart phones, personal or mobile multi-media players, personal data assistants, laptop computers, tablet computers, smart books, smart watches, palm-top computers, wireless electronic mail receivers, multimedia Internet-enabled cellular telephones, wireless gaming controllers, and similar personal electronic devices that includes one or more SIM cards, a programmable processor, memory, and circuitry for connecting to at least two mobile communication network with one or more shared RF resources.
  • Various examples may be useful in mobile communication devices, such as smart phones, and so such devices are referred to in the descriptions of various examples. However, the examples may be useful in any electronic devices that may individually maintain a plurality of RATs supporting one or more subscriptions that utilize at least one shared RF chain, which may include one or more of antennae, radios, transceivers, etc.
  • SIM Subscriber identification module
  • SIM card Subscriber identification module
  • subscriber identification module refers to a memory that may be an integrated circuit or embedded into a removable card, and that stores an International Mobile Subscriber Identity (IMSI) , related key, and/or other information used to identify and/or authenticate a mobile communication device on a network and enable a communication service with the network.
  • IMSI International Mobile Subscriber Identity
  • the term “subscription” is used herein as a shorthand reference to refer to the communication service associated with and enabled by the information stored in a particular SIM as the SIM and the communication network, as well as the services and subscriptions supported by that network, correlate to one another.
  • references are made to a first subscription and a second subscription, and to a first RAT and a second RAT.
  • the references to the first and second subscriptions and RATs are arbitrary and are used merely for the purposes of describing the examples.
  • the device processor may assign any indicator, name or other designation to differentiate the subscriptions and RATs on the mobile communication device.
  • One consequence of configuring a mobile communication device to support a plurality of RATs that maintain network connections simultaneously using a shared RF resource is that one RAT sometimes interrupts communications of the other RAT as one RAT can use the shared RF resource to communicate with its mobile network at a time. Even when a RAT is in an “idle-standby” mode, meaning that the RAT is not actively communicating with the network, the RAT still needs to periodically receive access to the shared RF resource in order to perform various network operations. For example, an idle RAT may need to use the shared RF resource at regular intervals to perform idle-mode operations or to receive paging messages.
  • an idle RAT may occasionally interrupt the active RAT’s RF operations so that the idle RAT can use the shared RF resource to perform the idle RAT’s idle mode operations (e.g., paging monitoring and decoding, cell reselection, system information monitoring, etc. ) .
  • This process of switching access of the shared RF resource from the active RAT to the idle RAT is referred to herein as a “tune-away, ” as the RF resource tunes away from the active RAT’s frequency band or channel and tunes to the idle RAT’s frequency bands or channels.
  • an LTE+GSM dual-SIM dual-standby (DSDS) mobile communication device may have a first subscription utilizing a LTE RAT and a second subscription utilizing a GSM RAT.
  • the mobile communication device may periodically tune the RF resource from the first subscription to the second subscription for page monitoring, voice or short message service (SMS) service, and GSM camping operations (e.g., measuring and making cell reselections if needed, reading system information, location registering, etc. ) .
  • SMS short message service
  • tune-aways may also occur between two different RATs utilized by the same subscription.
  • a CRAT device may have one SIM/subscription that utilizes both an LTE RAT and another RAT, such as GSM or CDMA2000.
  • a tune-away may be performed between the RATs utilized by the same subscription.
  • Tune-aways from an active RAT to an idle RAT may interfere with communication exchanges on the active RAT.
  • a network of the active RAT may transmit an uplink grant to the active RAT.
  • the active RAT may prepare packets for transmission through the physical uplink shared channel (PUSCH) .
  • PUSCH physical uplink shared channel
  • a tune-away to the idle RAT may occur during the scheduled PUSCH transmission, and so the transmission is skipped.
  • the tune-away subsequent uplink grants may be discarded, which may add a delay to the physical layer after the tune-back to the active RAT.
  • the discarded grants may be due to changes in the transport block (TB) size in the uplink grant without new data indicator (NDI) toggling, which is viewed as an invalid grant by the mobile communication device.
  • TB transport block
  • NDI new data indicator
  • the physical uplink control channel may be used to send physical downlink shared channel (PDSCH) acknowledgement (ACK) or non-acknowledgment (NAK) due to the discarding of the uplink grant.
  • PDSCH physical downlink shared channel
  • NAK non-acknowledgment
  • the network does not decode the PUCCH because a PUSCH transmission was expected. This may result in long PDSCH retransmission times with out-of-reception-window downlink protocol data units (PDUs) on the downlink. Missed PUSCH transmissions due to tune-away may occur more often in CRAT devices.
  • PDUs downlink protocol data units
  • various examples provide systems and methods implemented with a processor of a mobile communication device (e.g., a multi-SIM mobile communication device) for handling retransmission grants in the presence of tune-aways.
  • the processor may initiate a detection window upon detecting that a tune-away from a first RAT to a second RAT has started and determine whether the first RAT has received an uplink grant that includes a changed TB size and no NDI toggling. If the uplink grant has a changed TB size and no NDI toggling, the processor may handle the uplink grant and place a corresponding radio link control (RLC) protocol data unit (PDU) in a RLC retransmission queue for fast retransmission.
  • RLC radio link control
  • a first mobile network 102 and a second mobile network 104 typically each include a plurality of cellular base stations (e.g., a first base station 130 and a second base station 140) .
  • a first mobile communication device 110 may be in communication with the first mobile network 102 through a cellular connection 132 to the first base station 130.
  • the first mobile communication device 110 may also be in communication with the second mobile network 104 through a cellular connection 142 to the second base station 140.
  • the first base station 130 may be in communication with the first mobile network 102 over a wired connection 134.
  • the second base station 140 may be in communication with the second mobile network 104 over a wired connection 144.
  • a second mobile communication device 120 may similarly communicate with the first mobile network 102 through the cellular connection 132 to the first base station 130.
  • the second mobile communication device 120 may also communicate with the second mobile network 104 through the cellular connection 142 to the second base station 140.
  • the cellular connections 132 and 142 may be made through two-way wireless communication links, such as Third Generation (3G) , Fourth Generation (4G) , Long Term Evolution (LTE) , Time Division Multiple Access (TDMA) , Code Division Multiple Access (CDMA) , Wideband CDMA (WCDMA) , Global System for Mobile Communications (GSM) , Universal Mobile Telecommunications Systems (UMTS) , and other mobile telephony communication technologies.
  • Third Generation (3G) Fourth Generation
  • 4G Long Term Evolution
  • TDMA Time Division Multiple Access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband CDMA
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications Systems
  • the mobile communication devices 110, 120 are shown connected to the first mobile network 102 and, optionally, to the second mobile network 104, in some examples (not shown) , the mobile communication devices 110, 120 may include two or more RATs to two or more mobile networks and may connect to those RATs in a manner similar to those described herein.
  • the first mobile communication device 110 may optionally establish a wireless connection 152 with a peripheral device 150 used in connection with the first mobile communication device 110.
  • the first mobile communication device 110 may communicate over a link with a Bluetooth-enabled personal computing device (e.g., a “smart watch” ) .
  • the first mobile communication device 110 may optionally establish a wireless connection 162 with a wireless access point 160, such as over a Wi-Fi connection.
  • the wireless access point 160 may be configured to connect to the Internet 164 or another network over a wired connection 166.
  • the second mobile communication device 120 may similarly be configured to connect with the peripheral device 150 and/or the wireless access point 160 over wireless links.
  • FIG. 2 is a functional block diagram of a multi-SIM mobile communication device 200 suitable for implementing various examples.
  • the multi-SIM mobile communication device 200 may be similar to one or more of the mobile communication devices 110, 120 as described.
  • the multi-SIM mobile communication device 200 may include a first SIM interface 202a, which may receive a first identity module SIM-1 204a that is associated with a first subscription.
  • the multi-SIM mobile communication device 200 may also optionally include a second SIM interface 202b, which may receive an optional second identity module SIM-2 204b that is associated with a second subscription.
  • a SIM in various examples may be a Universal Integrated Circuit Card (UICC) that is configured with SIM and/or Universal SIM applications, enabling access to, for example, GSM and/or UMTS networks.
  • the UICC may also provide storage for a phone book and other applications.
  • a SIM may be a UICC removable user identity module (R-UIM) or a CDMA subscriber identity module (CSIM) on a card.
  • R-UIM UICC removable user identity module
  • CCM CDMA subscriber identity module
  • a SIM card may have a central processing unit (CPU) , read only memory (ROM) , random access memory (RAM) , electrically erasable programmable read only memory (EEPROM) and input/out (I/O) circuits.
  • CPU central processing unit
  • ROM read only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read only memory
  • I/O input/out
  • a SIM used in various examples may contain user account information, an international mobile subscriber identity (IMSI) , a set of SIM application toolkit (SAT) commands, and storage space for phone book contacts.
  • IMSI international mobile subscriber identity
  • SAT SIM application toolkit
  • a SIM card may further store home identifiers (e.g., a System Identification Number (SID) /Network Identification Number (NID) pair, a Home Public Land Mobile Number (HPLMN) code, etc. ) to indicate the SIM card network operator provider.
  • An Integrated Circuit Card Identity (ICCID) SIM serial number may be printed on the SIM card for identification.
  • a SIM may be implemented within a portion of memory of the multi-SIM mobile communication device 200 (e.g., in a memory 214) , and thus need not be a separate or removable circuit, chip or card.
  • the multi-SIM mobile communication device 200 may include at least one controller, such as a general processor 206, which may be coupled to a coder/decoder (CODEC) 208.
  • the CODEC 208 may in turn be coupled to a speaker 210 and a microphone 212.
  • the general processor 206 may also be coupled to the memory 214.
  • the memory 214 may be a non-transitory computer-readable storage medium that stores processor-executable instructions.
  • the instructions may include routing communication data relating to the first or second subscription though a corresponding baseband-RF resource chain.
  • the memory 214 may store a high level operating system, as well as user application software and executable instructions.
  • the general processor 206 and the memory 214 may each be coupled to at least one baseband modem processor 216.
  • Each SIM and/or RAT in the multi-SIM mobile communication device 200 e.g., the SIM-1 204a and/or the SIM-2 204b
  • a baseband-RF resource chain may include the baseband modem processor 216, which may perform baseband/modem functions for communications with/controlling a RAT, and may include one or more amplifiers and radios, referred to generally herein as RF resources (e.g., RF resource 218) .
  • baseband-RF resource chains may share the baseband modem processor 216 (i.e., a single device that performs baseband/modem functions for all RATs on the multi-SIM mobile communication device 200) .
  • each baseband-RF resource chain may include physically or logically separate baseband processors (e.g., BB1, BB2) .
  • the RF resource 218 may be a transceiver that performs transmit/receive functions for each of the SIMs/RATs on the multi-SIM mobile communication device 200.
  • the RF resource 218 may include separate transmit and receive circuitry, or may include a transceiver that combines transmitter and receiver functions. In some examples, the RF resource 218 may include multiple receive circuitries.
  • the RF resource 218 may be coupled to a wireless antenna (e.g., a wireless antenna 220) .
  • the RF resource 218 may also be coupled to the baseband modem processor 216.
  • the general processor 206, the memory 214, the baseband processor (s) 216, and the RF resource 218 may be included in the multi-SIM mobile communication device 200 as a system-on-chip 250.
  • the first and second SIMs 204a, 204b and the corresponding interfaces 202a, 202b may be external to the system-on-chip 250.
  • Example user input components suitable for use in the multi-SIM mobile communication device 200 may include, but are not limited to, a keypad 224, a touchscreen display 226, and the microphone 212.
  • the keypad 224, the touchscreen display 226, the microphone 212, or a combination thereof may perform the function of receiving a request to initiate an outgoing call.
  • the touchscreen display 226 may receive a selection of a contact from a contact list or receive a telephone number.
  • either or both of the touchscreen display 226 and the microphone 212 may perform the function of receiving a request to initiate an outgoing call.
  • the touchscreen display 226 may receive selection of a contact from a contact list or receive a telephone number.
  • the request to initiate the outgoing call may be in the form of a voice command received via the microphone 212.
  • Interfaces may be provided between the various software modules and functions in the multi-SIM mobile communication device 200 to enable communication between them, as is known in the art.
  • the two SIMs 204a, 204b, the baseband processor BB1, BB2, the RF resource 218, and the wireless antenna 220 may constitute two or more radio access technologies (RATs) .
  • the multi-SIM mobile communication device 200 may be a LTE communication device that includes a SIM, baseband processor, and RF resource configured to support two different RATs, such as LTE, WCDMA, and GSM. More RATs may be supported on the multi-SIM mobile communication device 200 by adding more SIM cards, SIM interfaces, RF resources, and antennae for connecting to additional mobile networks.
  • the multi-SIM mobile communication device 200 may include, among other things, additional SIM cards, SIM interfaces, a plurality of RF resources associated with the additional SIM cards, and additional antennae for supporting subscriptions communications with additional mobile networks.
  • FIG. 3 includes a timing diagram 300 illustrating the handling of retransmission grants in a multi-SIM multi-standby mobile communication device in the presence of tune-aways according to various examples.
  • a tune-away interrupts an uplink transmission during the hybrid automatic repeat request (HARQ) transmission process.
  • HARQ hybrid automatic repeat request
  • the mobile communication device receives a new uplink grant from the network with a change in the TB size and no NDI toggling and the HARQ process is still active, the HARQ process may be reset and the uplink grant may be handled as a new grant.
  • detection of the uplink grant may be implemented within a detection window.
  • the detection window may start at the beginning of a tune-away gap, indicated as “RF Unavailable Ind” in the diagram 300.
  • the duration of the detection window may be set as a sum of a duration of the tune-away and a product of a value related to a frequency division duplex (FDD) or time division duplex (FDD) times (maxHARQ_Tx –1) , wherein maxHARQ_Tx is configured by a radio resource control (RRC) .
  • FDD frequency division duplex
  • FDD time division duplex
  • RRC radio resource control
  • This detection window may apply to quick tune-aways (QTAs) as well as quick burst tune-aways (QBTAs) .
  • the duration of the detection window may be the same for QTAs and for QBTAs.
  • the duration of the detection window for QTAs may be N HarqActive because the mobile communication device won’ t receive new uplink grants during the tune-away gap.
  • the detection window may be applied to both primary component carriers (PCCs) and secondary component carriers (SCCs) in the uplink carrier aggregation case.
  • FIG. 4 illustrates a method 400 for handling retransmission grants in a mobile communication device according to various examples.
  • the method 400 may be implemented with a processor (e.g., the general processor 206, the baseband modem processor 216, a separate controller, and/or the like) of a mobile communication device (such as the mobile communication devices 110, 120) that supports a first RAT and a second RAT that share an RF resource.
  • a processor e.g., the general processor 206, the baseband modem processor 216, a separate controller, and/or the like
  • the first RAT and the second RAT may share the same subscription, or may be associated with different subscriptions.
  • the first RAT may currently be in active communication with its respective network.
  • the processor may initiate a tune-away from the first RAT to the second RAT.
  • the tune-away may be a QTA or a QBTA.
  • the processor may start a HARQ reset detection window with a specified duration.
  • the duration of the detection window may be at least one active HARQ duration, or may be a sum of a duration of the tune-away and at least one active HARQ duration.
  • the at least one active HARQ duration may be related to a frequency division duplex (FDD) timer or time division duplex (TDD) timer times (maxHARQ_Tx –1) , wherein maxHARQ_Tx, the FDD timer, and the TDD timer are configured by a radio resource control or a base station.
  • FDD frequency division duplex
  • TDD time division duplex
  • the processor may handle the uplink grant in block 412 and place a corresponding radio link control (RLC) protocol data unit (PDU) in a RLC retransmission queue for fast retransmission in block and 414.
  • RLC radio link control
  • the processor may handle the uplink grant as a new grant and discard the corresponding radio link control (RLC) PDU, and then place the discarded RLC PDU in the RLC retransmission queue for fast retransmission.
  • multi-SIM mobile communication device 500 may be implemented in any of a variety of communication devices, an example of which (e.g., multi-SIM mobile communication device 500) is illustrated in FIG. 5.
  • the multi-SIM mobile communication device 500 may be similar to the mobile communication devices 110, 120, 200 as described. As such, the multi-SIM mobile communication device 500 may implement the method 400 according to various examples.
  • the multi-SIM mobile communication device 500 may include a processor 502 coupled to a touchscreen controller 504 and an internal memory 506.
  • the processor 502 may be one or more multi-core integrated circuits designated for general or specific processing tasks.
  • the internal memory 506 may be volatile or non-volatile memory, and may also be secure and/or encrypted memory, or unsecure and/or unencrypted memory, or any combination thereof.
  • the touchscreen controller 504 and the processor 502 may also be coupled to a touchscreen panel 512, such as a resistive-sensing touchscreen, capacitive-sensing touchscreen, infrared sensing touchscreen, etc. Additionally, the display of the multi-SIM mobile communication device 500 need not have touch screen capability.
  • the multi-SIM mobile communication device 500 may have one or more cellular network transceivers 508 coupled to the processor 502 and to one or more antennas 510 and configured for sending and receiving cellular communications.
  • the one or more transceivers 508 and the one or more antennas 510 may be used with the herein-mentioned circuitry to implement various example methods.
  • the multi-SIM mobile communication device 500 may include one or more SIM cards 516 coupled to the one or more transceivers 508 and/or the processor 502 and may be configured as described herein.
  • the multi-SIM mobile communication device 500 may also include speakers 514 for providing audio outputs.
  • the multi-SIM mobile communication device 500 may also include a housing 520, constructed of a plastic, metal, or a combination of materials, for containing all or some of the components discussed herein.
  • the multi-SIM mobile communication device 500 may include a power source 522 coupled to the processor 502, such as a disposable or rechargeable battery.
  • the rechargeable battery may also be coupled to the peripheral device connection port to receive a charging current from a source external to the multi-SIM mobile communication device 500.
  • the multi-SIM mobile communication device 500 may also include a physical button 524 for receiving user inputs.
  • the multi-SIM mobile communication device 500 may also include a power button 526 for turning the multi-SIM mobile communication device 500 on and off.
  • 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 computing devices, 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 configurations. 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, 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 devices, 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 in which disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the storage media 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

Divers procédés de gestion des autorisations de retransmission dans un dispositif de communication mobile peuvent consister à déclencher une fenêtre de détection lorsque la détection d'un accord à partir d'une première technologie d'accès radio (RAT) à une seconde RAT a démarré, à déterminer si la première RAT a reçu une autorisation de liaison montante qui comprend une taille de bloc de transport modifié (TB) et qu'aucun nouvel indicateur de données (NDI) ne bascule, et à gérer l'autorisation de liaison montante et à placer une unité de données de protocole (PDU) de commande de liaison radio (RLC) correspondante dans une file d'attente de retransmission RLC pour une retransmission rapide en réponse à la détermination que la première RAT a reçu une autorisation de liaison montante qui comprend une taille de TB modifiée et aucun basculement NDI.
PCT/CN2016/087884 2016-06-30 2016-06-30 Gestion des autorisations de retransmission dans des dispositifs de communication mobile WO2018000320A1 (fr)

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