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    Searching through modulated data to determine the format of a control channel
    1.
    发明授权
    Searching through modulated data to determine the format of a control channel 有权

    公开(公告)号：US10009883B1

    公开(公告)日：2018-06-26

    申请号：US14938615

    申请日：2015-11-11

    Applicant: Sprint Spectrum L.P.

    Inventor： Muhammad A. Naim ,  Yu Zhou ,  Luca Zappaterra

    IPC: H04W72/04 ,  H04W88/02

    CPC classification number: H04L5/0091 ,  H04L5/0053

    Abstract: In an example method, a UE receives modulated data transmitted from a base station in a given subframe, and searches through the received modulated data to find the physical control format indicator channel (PCFICH) of the given subframe. The searching is based on the PCFICH having a predefined structure. Upon thereby finding the PCFICH of the given subframe, the UE determines the control format indicator (CFI) carried by the PCFICH of the given subframe. The UE then uses the CFI carried by the PCFICH of the given subframe as a basis to read a portion of a downlink control channel of the given subframe.

    Cross-TTI look-back scheduling
    2.
    发明授权
    Cross-TTI look-back scheduling 有权

    公开(公告)号：US09986584B1

    公开(公告)日：2018-05-29

    申请号：US14848245

    申请日：2015-09-08

    Applicant: Sprint Spectrum L.P.

    Inventor： Yu Zhou ,  Muhammad A. Naim ,  Luca Zappaterra ,  David Mcgrath

    IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

    CPC classification number: H04W72/1289 ,  H04L5/0007 ,  H04L5/0092 ,  H04W72/0446

    Abstract: Disclosed is a method and apparatus to help manage data communication in a manner that increases downlink capacity. As disclosed, a base station may transmit, in a downlink traffic channel of a given sub-frame, bearer data to a particular wireless communication device (WCD). After transmitting the bearer data, the base station may transmit, in the downlink control channel of another sub-frame, a signaling message that directs the particular WCD to read the previously transmitted bearer data. The signaling message may include an indication of the given sub-frame having the previously transmitted bearer data. When the WCD receives and reads the signaling message, the WCD may use the indication as a basis to read the previously transmitted bearer data in accordance with the signaling message.

    Offset decoding of resource elements within resource blocks to compensate for propagation delay
    3.
    发明授权
    Offset decoding of resource elements within resource blocks to compensate for propagation delay 有权

    公开(公告)号：US10164814B1

    公开(公告)日：2018-12-25

    申请号：US15213010

    申请日：2016-07-18

    Applicant: Sprint Spectrum L.P.

    Inventor： Yu Zhou ,  Muhammad Ahsan Naim ,  Luca Zappaterra

    IPC: H04L27/26 ,  H04B17/364 ,  H04W84/04 ,  H04L5/00

    Abstract: Disclosed is a method and system for offset decoding of resource elements in a resource block to compensate for propagation delay in uplink coordinated multipoint service. A determination may be made that the initial data symbol of a time-ordered sequence of N data symbols transmitted by a user equipment device (UE) to a base station (BS) will be received at an arrival time beyond an initial one of N equally-spaced tolerance windows for simultaneous decoding of data symbols received from UEs. If it is determined that the arrival time will be within a subsequent one of the N equally-spaced tolerance windows, then the BS may receive and decode those of the N data symbols with respective arrival times in one of the subsequent tolerance windows. Otherwise, the BS may refrain from decoding any of the N data symbols. The decode data symbols may be merged with those from another BS.

    Prioritized transmission of redundancy data for packetized voice communication
    5.
    发明授权
    Prioritized transmission of redundancy data for packetized voice communication 有权

    公开(公告)号：US09967306B1

    公开(公告)日：2018-05-08

    申请号：US15259812

    申请日：2016-09-08

    Applicant: Sprint Spectrum L.P.

    Inventor： Yu Zhou ,  Luca Zappaterra ,  Muhammad A. Naim

    IPC: H04L29/06

    CPC classification number: H04L65/607 ,  H04L65/4069 ,  H04L65/602

    Abstract: A method for prioritized transmission of redundancy data in a voice-over-packet call. A sending device applies a variable rate codec to generate a sequence of encoded voice frames having varying sizes, and the sending device inserts the encoded voice frames into a sequence of fixed-size packets, one encoded voice frame per packet, resulting in varying left-over payload capacity per packet. The sending device further generates based on each encoded voice frame multiple redundancy blocks to help facilitate recovery of the encoded voice frame. And on a per packet-basis, the sending device selects, from a sliding-window set of recently generated redundancy blocks, one or more redundancy blocks to add into the left-over payload capacity of the packet, with the selecting of each redundancy block being based at least on importance of the voice frame based on which the redundancy block was generated, and the age and size of the redundancy block.

    Method and apparatus for managing sequential communication on a wireless channel
    6.
    发明授权
    Method and apparatus for managing sequential communication on a wireless channel 有权

    公开(公告)号：US10397950B1

    公开(公告)日：2019-08-27

    申请号：US14799852

    申请日：2015-07-15

    Applicant: Sprint Spectrum L.P.

    Inventor： Luca Zappaterra ,  Yu Zhou ,  Muhammad A. Naim

    IPC: H04L1/18 ,  H04W28/02 ,  H04W74/00 ,  H04W74/08

    Abstract: Disclosed is a method and apparatus to help manage communication on a wireless channel when transmitting and receiving nodes will engage in a sequence of data-ACK exchanges with each other on the channel. As disclosed, the transmitting node and/or receiving node may include in at least one of the data-ACK exchanges an indication of how many data-ACK exchanges remain in the sequence and may further include indicia of how often each data-ACK exchange will occur and how long each data-ACK exchange will last. A neighboring node that is observing the channel to determine whether the channel is available may thus determine, based at least in part on the indication in the data-ACK exchange how many times to refrain from transmitting on the channel, how often to so refrain, and how long to refrain in each instance.

    Method and system for coordinated multipoint transmission concurrently to multiple user equipment devices from multiple base stations
    8.
    发明授权
    Method and system for coordinated multipoint transmission concurrently to multiple user equipment devices from multiple base stations 有权

    公开(公告)号：US09985759B1

    公开(公告)日：2018-05-29

    申请号：US15073268

    申请日：2016-03-17

    Applicant: Sprint Spectrum L.P.

    Inventor： Muhammad A. Naim ,  Luca Zappaterra ,  Yu Zhou

    IPC: H04L5/00

    CPC classification number: H04L5/0035

    Abstract: A method and system for coordinated multipoint transmission concurrently to multiple user equipment devices (UEs) from multiple base stations. When multiple base stations each serve a respective UE and each base station has a separate bit stream to communicate to its respective served UE, bit groups will be defined across the base station's bit streams, such that each bit group includes at least one bit from each base station's bit stream. And the base stations will then engage in CoMP transmission of each bit group, with all of the base stations transmitting the bit group at the same time and frequency as each other, such as on the same resource element, using the same modulation scheme. Each UE may then receive that transmitted bit group and process just the appropriate bit(s) destined to the UE, discarding the others.

    Compensating delay spread in coordinated uplink communications
    9.
    发明授权
    Compensating delay spread in coordinated uplink communications 有权

    公开(公告)号：US09907059B1

    公开(公告)日：2018-02-27

    申请号：US15167395

    申请日：2016-05-27

    Applicant: Sprint Spectrum L.P.

    Inventor： Yu Zhou ,  Muhammad Ahsan Naim ,  Luca Zappaterra

    IPC: H04W72/04 ,  H04L5/00 ,  H04W92/10 ,  H04W88/08 ,  H04W88/02

    CPC classification number: H04W72/0413 ,  H04L5/001 ,  H04L5/0035 ,  H04W72/0453 ,  H04W88/02 ,  H04W88/08 ,  H04W92/10

    Abstract: Disclosed is a method and system for compensating excessive delay spread in uplink coordinated multipoint service. An uplink data-unit transmitted by a user equipment device (UE) on a first uplink air interface to a first base station (BS) using a first group of sub-carrier frequencies may be received at a time that is within an alignment-time range for simultaneously decoding uplink data-units from UEs transmitting on the first uplink. A determination is made that the uplink data-unit transmitted simultaneously by the UE on a second uplink air interface using a second group of sub-carrier frequencies will be received at a second BS at a time that is time is beyond the alignment-time range for simultaneously decoding uplink data-units from UEs transmitting on the second uplink. Decoding of the received uplink data-unit at the second BS is then delayed until a start time beyond the end of the alignment-time range.

    Method and system for managing a multi-message exchange over a wireless channel
    10.
    发明授权
    Method and system for managing a multi-message exchange over a wireless channel 有权

    公开(公告)号：US09877342B1

    公开(公告)日：2018-01-23

    申请号：US15070794

    申请日：2016-03-15

    Applicant: Sprint Spectrum L.P.

    Inventor： Luca Zappaterra ,  Yu Zhou ,  Muhammad A. Naim

    IPC: H04W74/00 ,  H04L27/00 ,  H04W74/08 ,  H04W72/04

    CPC classification number: H04W74/008 ,  H04L27/0006 ,  H04W72/0406 ,  H04W74/0816

    Abstract: When an upper layer of a device is going to initiate an exchange of two or more messages with a corresponding upper layer of another device, the initiating device will provide from its upper layer to a lower layer such as a MAC layer an indication of how many messages the devices will be exchanging. In response to that indication, the lower layer of the initiating device will then cause the lower layer of the other device to forgo checking for and confirming availability of the channel for transmission of the next message of the exchange from the other device to the initiating device. Further, the lower layer of the initiating device may also responsively forgo for and confirming availability of the channel for a subsequent message of the exchange.

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