公开(公告)号：US11917472B2

公开(公告)日：2024-02-27

申请号：US17585383

申请日：2022-01-26

Applicant: QUALCOMM Incorporated

Inventor： Feilu Liu ,  Yu-Ting Yu ,  Srinivas Reddy Mudireddy ,  Tom Chin ,  Suli Zhao ,  Aziz Gholmieh ,  Xing Chen ,  Ozcan Ozturk ,  Arnaud Meylan

IPC: H04W36/06 ,  H04W28/02 ,  H04W28/16

CPC classification number: H04W36/06 ,  H04W28/0263 ,  H04W28/0268 ,  H04W28/16

Abstract: 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.

公开(公告)号：US10904795B2

公开(公告)日：2021-01-26

申请号：US16446251

申请日：2019-06-19

Applicant: QUALCOMM Incorporated

Inventor： Yu-Ting Yu

IPC: H04W28/16 ,  H04W76/30 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. Double remapping of Quality of Service (QoS) flows between radio bearers may be avoided through disclosed techniques, aspects of which may include determining a release procedure for a QoS flow from a first radio bearer, such as whether or not the release procedure is or is part of a remapping procedure, based on configuration information for a second radio bearer, such as whether the QoS flow is added to any radio bearer other than the first radio bearer.

公开(公告)号：US10805836B2

公开(公告)日：2020-10-13

申请号：US15970047

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Yu-Ting Yu ,  Gavin Bernard Horn ,  Chih-Ping Li

IPC: H04W28/06 ,  H04L1/18 ,  H04W36/00 ,  H04W76/15 ,  H04L1/22 ,  H04L1/08 ,  H04W76/27 ,  H04W28/02 ,  H04L12/823 ,  H04L5/00 ,  H04L1/00 ,  H04L1/04

Abstract: Techniques are described for operating procedures associated with packet duplication. A packet data protocol convergence protocol (PDCP) entity of a transmitting device may duplicate a received packet to form a set of copied packets. Each packet in the set of copied packets may include the information of the received packet. Each packet of the set of copied packets may be transmitted using a different radio link control (RLC) entity. Procedures are described for configuring duplication bearers. Procedures are described for activating or deactivating packet duplication. Procedures are described for handling RLC entities at deactivation. Procedures are described for discarding some duplicate packets after a packet has been successfully decoded by a receiving device. Procedures are described for delaying transmission of duplicate packets to improve efficient use of communication resources. Procedures are described for buffer status report (BSR) reporting for duplication bearers.

公开(公告)号：US20180205808A1

公开(公告)日：2018-07-19

申请号：US15650725

申请日：2017-07-14

Applicant: QUALCOMM Incorporated

Inventor： Yue Yang ,  Yu-Ting Yu ,  Aziz Gholmieh ,  Leena Zacharias ,  Shailesh Maheshwari ,  Vishal Dalmiya ,  Bao Vinh Nguyen ,  Gavin Bernard Horn

IPC: H04L29/08 ,  H04L29/06

CPC classification number: H04L69/324 ,  H04L29/06 ,  H04L69/14 ,  H04L69/16 ,  H04L69/161 ,  H04L69/165 ,  H04L69/321 ,  H04W40/00 ,  H04W40/02

Abstract: Techniques are described for wireless communication. One method includes receiving, at a medium access control (MAC) entity, protocol data units (PDUs) corresponding to one or more Internet protocol (IP) flows, routing the PDUs from the MAC entity to respective radio link control (RLC) entities based on a logical channel prioritization, and forwarding the PDUs from respective RLC entities to one or more packet data convergence protocol (PDCP) entities mapped to each RLC entity. Another method includes receiving, at a protocol layer entity above an RLC layer of a transmitting device, a PDU, labeling the PDU with a unique PDCP instance identifier packet, and passing the PDU to a protocol layer entity below the PDCP layer of the transmitting device.

公开(公告)号：US20170222871A1

公开(公告)日：2017-08-03

申请号：US15256375

申请日：2016-09-02

Applicant: QUALCOMM Incorporated

Inventor： Yu-Ting Yu ,  Gavin Bernard Horn ,  Anurag Vardhan ,  Rotem Cooper ,  Aziz Gholmieh ,  Keiichi Kubota

IPC: H04L12/24 ,  H04W28/06 ,  H04W76/04

CPC classification number: H04L41/0803 ,  H04L1/0083 ,  H04L1/009 ,  H04L47/365 ,  H04W28/065 ,  H04W76/27

Abstract: Some aspects provide for establishing a radio connection for the wireless communication, determining a configuration for whether to segment one or more packets for the wireless communication using the established radio connection, and communicating the one or more packets based on the determined configuration. Some aspects provide for assembling a first frame comprising one or more packets, transmitting the first frame, determining whether a portion of one or more packets was truncated during the assembling of the first frame, and transmitting a second frame comprising at least the truncated portion of the one or more packets of the first frame. Some aspects provide for receiving a first frame comprising one or more packets, determining that a portion of one or more packets is truncated, and determining whether to ignore as padding at least the truncated portion of the one or more packets of the first frame.

公开(公告)号：US20170214489A1

公开(公告)日：2017-07-27

申请号：US15228291

申请日：2016-08-04

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Yu-Ting Yu ,  Feilu Liu ,  Tingfang Ji ,  Gavin Bernard Horn

IPC: H04L1/00 ,  H04W72/04

Abstract: 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.

公开(公告)号：US11071123B2

公开(公告)日：2021-07-20

申请号：US15933003

申请日：2018-03-22

Applicant: QUALCOMM Incorporated

Inventor： Yue Yang ,  Aziz Gholmieh ,  Yu-Ting Yu

IPC: H04L12/863 ,  H04W72/12 ,  H04W72/04 ,  H04L12/801 ,  H04L1/18 ,  H04L5/00 ,  H04W72/14

Abstract: Methods and apparatus for providing transport block boundary flexibility are disclosed. In some aspects, a transmitter determines a plurality of blocks within a single transmission time interval (TTI), and transmits the plurality of blocks within the single TTI. Each of the plurality of blocks spans over a pre-defined period of time that is shorter than the single TTI. Each of the plurality of blocks includes data having a same logic channel identifier and a same header. A leading boundary and a trailing boundary of each of the plurality of blocks are aligned with one of: a leading boundary and a trailing boundary of a symbol; or a leading boundary and a trailing boundary of a code block. In additional aspects, a receiver receives these plurality of blocks within a single transmission time interval (TTI), and decodes a plurality of protocol data units in the plurality of blocks.

公开(公告)号：US11051352B2

公开(公告)日：2021-06-29

申请号：US16812021

申请日：2020-03-06

Applicant: QUALCOMM Incorporated

Inventor： Yu-Ting Yu ,  Keiichi Kubota ,  Gavin Bernard Horn

IPC: H04W4/00 ,  H04W76/18 ,  H04W76/15 ,  H04L1/08 ,  H04L1/16 ,  H04W24/04 ,  H04B7/022 ,  H04W76/19

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to operate in dual connectivity (DC) and with split radio bearers, such that one or more split radio bearers are associated with a first cell group and one or more split radio bearers are associated with a second cell group. In some cases, a cell group failure may occur. Accordingly, the UE may autonomously update one or more radio bearer configurations of the split radio bearers to determine a processing scheme for the cell group failure. Additionally or alternatively, as a result of the cell group failure, an amount of unacknowledged data in a radio link control (RLC) buffer for the second cell group may get stuck such that the network cannot access it. Accordingly, the UE may perform a PDCP data recovery (e.g., user plane handling) to access the unacknowledged data.

公开(公告)号：US20210153221A1

公开(公告)日：2021-05-20

申请号：US17158812

申请日：2021-01-26

Applicant: QUALCOMM Incorporated

Inventor： Yue Yang ,  Srinivasan Balasubramanian ,  Aziz Gholmieh ,  Yu-Ting Yu

IPC: H04W72/12 ,  H04W24/08 ,  H04W76/10 ,  H04W28/24

Abstract: Methods, systems, and devices for wireless communication are described. A wireless communications system may establish radio bearers for certain data transmissions between a user equipment (UE) and a base station. A radio bearer may be associated with one or more quality of services (QoS) parameters, such as a bit rate. The base station may indicate to the UE a time window over which to average the bit rate. In some examples, a radio bearer may include multiple data flows. The base station may provide information regarding QoS parameters for each data flow in control signaling, such as a grant.

公开(公告)号：US20200213242A1

公开(公告)日：2020-07-02

申请号：US16638097

申请日：2018-08-09

Applicant: Ruiming ZHENG ,  Yu-Ting YU ,  Keiichi KUBOTA ,  Gavin Bernard HORN ,  Qualcomm Incorporated

Inventor： Ruiming Zheng ,  Yu-Ting Yu ,  Keiichi Kubota ,  Gavin Bernard Horn

IPC: H04L12/801 ,  H04W28/06

Abstract: A wireless device may receive a radio link control (RLC) protocol data unit (PDU) from a lower layer (e.g., from a media access control (MAC) layer) when processing communications (e.g., packets) received from another wireless device. The receiving wireless device may identify that the PDU is an RLC service data unit (SDU) segment based at least in part on an indication corresponding to a sequence number associated with the RLC SDU segment. The receiving wireless device may then determine that the RLC SDU segment is received out of order based on previously received PDUs or previously received RLC SDU segments, and initiate a reassembly timer based on the out of order determination for the RLC SDUs. If the remaining RLC SDU segments (e.g., that complete the RLC SDU) are received before reassembly timer expires, the wireless device may reassemble the RLC SDU to be passed to a higher layer.