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公开(公告)号：US20200083982A1
公开(公告)日：2020-03-12
申请号：US16685781
申请日：2019-11-15
发明人： Jing JIANG , Yu-Ting YU , Feilu LIU , Tingfang JI , Gavin Bernard HORN
摘要： A method, an apparatus, and a processor-readable storage medium for wireless communication are provided. A transmitter transmits data packets to a receiver, encodes the data packets to generate parity packets, stores the parity packets in a retransmission buffer, receives information from the receiver indicating that a data packet was not correctly decoded, and transmits to the receiver the parity packets stored in the retransmission buffer for recovering the data packet not correctly decoded without retransmitting the data packet not correctly decoded. The transmitter may further retransmit to the receiver the parity packets. The transmitted data packets may be encoded at a medium access control (MAC) layer of the transmitter. The retransmission buffer may be located at a radio link control (RLC) layer or a packet data convergence protocol (PDCP) layer of the transmitter. A reordering buffer at the receiver may be located at the RLC layer or PDCP layer.
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2.发明申请公开(公告)号：US20180359789A1
公开(公告)日：2018-12-13
申请号：US15619145
申请日：2017-06-09
发明人： Yue YANG , Feilu LIU , Aziz GHOLMIEH , Srinivasan BALASUBRAMANIAN
摘要： Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a trigger condition relating to at least one of historical information stored by the UE, a user interaction with the UE, a mobility state of the UE, or an active or foreground application on the UE; and/or transmit a request for or proposal of a discontinuous reception (DRX) cycle length or configuration based at least in part on identifying the trigger condition, wherein the request for or proposal of the modified DRX cycle length identifies a positive or negative adjustment to the DRX cycle length. Numerous other aspects are provided.
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公开(公告)号：US20230128433A1
公开(公告)日：2023-04-27
申请号：US17451976
申请日：2021-10-22
发明人： Feilu LIU , Can ZHAO , Suli ZHAO , Alok MITRA , Vinay PARADKAR , Rushil GHOLAP , Xinli SONG , Liping SHEN , Rajashekar CHILLA
IPC分类号： H04W28/02 , H04L12/813 , H04L12/859 , H04W12/03
摘要： In a wireless network, a user equipment (UE) may support reflective quality of service (QoS), where QoS applied to uplink packets is implicitly derived from downlink packets. For example, when the UE receives a downlink packet that includes a reflective QoS (RQoS) indicator and a QoS flow identifier (QFI), the UE may apply the same QoS associated with the downlink packet to an uplink packet with one or more attributes that match the downlink packet. However, for a received downlink encapsulating security payload (ESP) packet that includes an RQoS indicator and a QFI, a modem cannot determine an uplink security parameters index (SPI) and downlink SPI pairing needed to enable RQoS because the uplink/downlink SPI pairing is known only by the upper layer. Accordingly, some aspects described herein enable the modem to learn uplink/downlink SPI pairings for ESP packets and thereby enable RQoS for ESP packets.
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公开(公告)号：US20220417788A1
公开(公告)日：2022-12-29
申请号：US17929868
申请日：2022-09-06
发明人： Lenaig Genevieve CHAPONNIERE , Can ZHAO , Rakshith SUNDARESHAN , Ajinkya Ashok GHODKE , Liping SHEN , Feilu LIU , Suli ZHAO
摘要： Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for updating QoS configurations at a user equipment (UE). An example method generally includes receiving, from a network entity, quality of service (QoS) information, a QoS identifier associated with the QoS information, and a bearer context associated with the QoS information in one of a modify bearer context request message, an activate default bearer context request message, or an activate dedicated bearer context request message; and updating a QoS configuration using the QoS information based on whether the UE is already configured with QoS information associated with the QoS identifier for a bearer context different from the bearer context associated with the QoS information received in the modify bearer context request message, activate default bearer context request message, or activate dedicated bearer context request message.
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公开(公告)号：US20220338050A1
公开(公告)日：2022-10-20
申请号：US17233364
申请日：2021-04-16
发明人： Feilu LIU , Suli ZHAO , Alok MITRA , Srinivas Reddy MUDIREDDY , Reza SHAHIDI , Sitaramanjaneyulu KANAMARLAPUDI , Vaibhav KUMAR
IPC分类号： H04W28/02 , H04L12/859 , H04L12/851 , H04W36/00
摘要： Certain aspects of the present disclosure provide techniques for implementing reflective quality of service (RQoS) in wireless communication systems. A method for implementing RQoS that may be performed by a user equipment (UE) generally includes receiving a plurality of downlink user data packets from a first base station (BS), determining at least one reflective quality of service (RQoS) mapping rule for one or more uplink packet transmissions based on a subset of the plurality of downlink user data packets, filtering the plurality of downlink user data packets based on the at least one RQoS mapping rule, and forwarding the plurality of downlink user data packets to a corresponding application entity of the UE based on the filtering.
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公开(公告)号：US20210321287A1
公开(公告)日：2021-10-14
申请号：US17199816
申请日：2021-03-12
发明人： Lenaig Genevieve CHAPONNIERE , Can ZHAO , Rakshith SUNDARESHAN , Ajinkya Ashok GHODKE , Liping SHEN , Feilu LIU , Suli ZHAO
摘要： Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for updating QoS configurations at a user equipment (UE). An example method generally includes receiving, from a network entity, quality of service (QoS) information, a QoS identifier associated with the QoS information, and a bearer context associated with the QoS information in one of a modify bearer context request message, an activate default bearer context request message, or an activate dedicated bearer context request message; and updating a QoS configuration using the QoS information based on whether the UE is already configured with QoS information associated with the QoS identifier for a bearer context different from the bearer context associated with the QoS information received in the modify bearer context request message, activate default bearer context request message, or activate dedicated bearer context request message.
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7.发明申请公开(公告)号：US20220150782A1
公开(公告)日：2022-05-12
申请号：US17585383
申请日：2022-01-26
发明人： Feilu LIU , Yu-Ting YU , Srinivas Reddy MUDIREDDY , Tom CHIN , Suli ZHAO , Aziz GHOLMIEH , Xing CHEN , Ozcan OZTURK , Arnaud MEYLAN
摘要： Aspects directed towards Quality of Service (QoS) flow remapping are disclosed. In an example, upon detecting a mapping reconfiguration of a first QoS flow from a first data radio bearer (DRB) to another DRB, a Service Data Adaptation Protocol (SDAP) control protocol data unit (PDU) is generated indicating that a final SDAP data PDU associated with the first QoS flow has been transmitted on the first DRB. The SDAP control PDU is then transmitted via the first DRB. In another example, upon detecting a mapping reconfiguration of a first QoS flow from a first DRB to another DRB, an end marker parameter is set in an SDAP header of a first SDAP data PDU received from an upper layer after the mapping reconfiguration indicating that the first SDAP data PDU is a final SDAP data PDU associated with the first QoS flow transmitted on the first DRB.
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公开(公告)号：US20220038978A1
公开(公告)日：2022-02-03
申请号：US17451369
申请日：2021-10-19
发明人： Feilu LIU , Liping SHEN , Suli ZHAO , Vishal SHETH , Alok MITRA
摘要： Certain aspects of the present disclosure provide techniques for avoiding out of order uplink data reception upon data radio bearer (DRB) release or quality of service (QoS) flow addition. An exemplary method that may be performed by a user equipment (UE), includes obtaining an indication that a first data radio bearer (DRB) is released or handed over to a second DRB, wherein a first mapping maps a first quality of service (QoS) flow to the first DRB; obtaining a second mapping that maps the first QoS flow to a second DRB; editing service data adaptation protocol (SDAP) headers of uplink protocol data units (PDUs) in an uplink transmission buffer associated with the first DRB, based on a difference between a first configuration of the first DRB and a second configuration of the second DRB; and transmitting the uplink PDUs via the second DRB.
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公开(公告)号：US20200288531A1
公开(公告)日：2020-09-10
申请号：US16495059
申请日：2018-03-23
发明人： Ashish Shankar IYER , Omesh Kumar HANDA , Chun-Hao HSU , Nitin PANT , Srinivasan RAJAGOPALAN , Liangchi HSU , Feilu LIU , Muthukumaran DHANAPAL , Alberto RICO ALVARINO , Zhibin DANG
摘要： Aspects of the present disclosure provide techniques to enable enhanced machine type communication (s) (eMTC) and/or narrowband Internet-of-Things (NB-IoT) devices to transition to idle mode after releasing a connection, such as a radio resource control (RRC) connection, more quickly than with previously known techniques. An example method includes determining, based on an indication received in a narrowband signal on a narrowband region of a bandwidth comprising a plurality of narrowband regions, whether to wait for a delay period, determined based on a configuration received from a network entity, before releasing a radio resource control (RRC) connection and releasing the RRC connection at a time in accordance with the determination.
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公开(公告)号：US20180205488A1
公开(公告)日：2018-07-19
申请号：US15799813
申请日：2017-10-31
CPC分类号： H04L1/0004 , H04L1/00 , H04L1/0023 , H04L1/0025 , H04L1/08 , H04L27/00 , H04L27/0012 , H04W72/042
摘要： Techniques for indicating and/or selecting a modulation and coding scheme (MCS) are disclosed. A method for selecting the MCS may comprise receiving control information, identifying a change indicator, determining a first MCS based on the control information, and modifying the first MCS based on the change indicator to determine a second MCS.
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