公开(公告)号：US10757754B2

公开(公告)日：2020-08-25

申请号：US15595474

申请日：2017-05-15

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Gavin Bernard Horn ,  Yu-Ting Yu ,  Shailesh Maheshwari ,  Vanitha Kumar

IPC: H04L29/06 ,  H04W80/02 ,  H04W12/04 ,  H04W12/00 ,  H04L12/801 ,  H04W88/08 ,  H04W36/00 ,  H04L29/08 ,  H04W28/06

Abstract: Techniques are described herein to secure a packet data convergence protocol (PDCP) control protocol data unit (PDU). A base station may determine a security configuration for a PDCP control PDU based on various factors including the content of the PDCP control PDU. For example, the security configuration of the PDCP control PDU may be applied because the PDCP control PDU includes a retransmission request. A counter dedicated to PDCP control PDUs may be initialized. The security protocols may be based on the dedicated counter. Some types of security parameters may be shared in some contexts such as in handover procedures or dual connectivity procedures. For example, security configurations associated with a second communication link may be based on security configurations associated with a first communication link. PDCP control PDUs may be secured based on the security configurations, the security parameters, protection keys, or combinations thereof.

公开(公告)号：US10432761B2

公开(公告)日：2019-10-01

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: H04W72/04 ,  H04L29/08 ,  H04L29/06 ,  H04L12/701 ,  H04W40/00

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：US20180324642A1

公开(公告)日：2018-11-08

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 ,  H04L12/823 ,  H04W28/02 ,  H04W36/00 ,  H04W76/27

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：US20180279336A1

公开(公告)日：2018-09-27

申请号：US15933145

申请日：2018-03-22

Applicant: QUALCOMM Incorporated

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

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

CPC classification number: H04W72/1231 ,  H04W24/08 ,  H04W24/10 ,  H04W28/24 ,  H04W76/10

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：US20180279328A1

公开(公告)日：2018-09-27

申请号：US15933003

申请日：2018-03-22

Applicant: QUALCOMM Incorporated

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

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

CPC classification number: H04W72/12 ,  H04L1/189 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0053 ,  H04L47/34 ,  H04L47/50 ,  H04W72/0446 ,  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：US20170310601A1

公开(公告)日：2017-10-26

申请号：US15269593

申请日：2016-09-19

Applicant: QUALCOMM Incorporated

Inventor： Yu-Ting Yu ,  Vincent Douglas Park ,  Gavin Bernard Horn

IPC: H04L12/807 ,  H04L12/26 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L47/27 ,  H04L43/08 ,  H04L43/0817 ,  H04L67/28 ,  H04L69/161

Abstract: Techniques are described for wireless communication. One method includes monitoring a dynamic connection parameter associated with a Transmission Control Protocol (TCP) connection between a mobile device and an end device; identifying a TCP (acknowledgement) ACK message comprising a current receive window size; determining an updated receive window size based at least in part on the monitored dynamic connection parameter and the current receive window size; and transmitting, to the end device, the TCP ACK message comprising the updated receive window size.

公开(公告)号：US12010718B2

公开(公告)日：2024-06-11

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 ,  H04W28/24 ,  H04W72/542 ,  H04W76/10 ,  H04W24/10

CPC classification number: H04W72/542 ,  H04W24/08 ,  H04W28/24 ,  H04W76/10 ,  H04W24/10

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：US11516142B2

公开(公告)日：2022-11-29

申请号：US16638097

申请日：2018-08-09

Applicant: Qualcomm Incorporated

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

IPC: H04L47/34 ,  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.

公开(公告)号：US11277332B2

公开(公告)日：2022-03-15

申请号：US16333500

申请日：2017-04-20

Applicant: Qualcomm Incorporated

Inventor： Xipeng Zhu ,  Ruiming Zheng ,  Rulin Xing ,  Huichun Liu ,  Thomas Stockhammer ,  Stefano Faccin ,  Kuo-Chun Lee ,  Feilu Liu ,  Yu-Ting Yu

IPC: H04L12/707 ,  H04W76/15 ,  H04L12/801 ,  H04W28/02 ,  H04W88/02 ,  H04L45/00 ,  H04L47/193

Abstract: A user equipment (UE) may identify a bearer (e.g., a default bearer) and request establishment of a second bearer (e.g., a high priority bearer) for use in streaming downlink data from, for example, an application server. The UE may determine a status of a playout buffer and select the first bearer or the second bearer for use in streaming the downlink data associated with the application based on the status of the playout buffer. For example, the first bearer may be used be used by default, and the second bearer may be selected if the amount of data in the playout buffer does not satisfy (e.g., is below) a threshold. In some cases, each bearer may be associated with a transmission control protocol (TCP) port associated with a TCP connection. In some cases, each bearer may be associated with different Internet protocol (IP) address.

公开(公告)号：US11212695B2

公开(公告)日：2021-12-28

申请号：US16273827

申请日：2019-02-12

Applicant: QUALCOMM Incorporated

Inventor： Vinay Joseph ,  Luis Fernando Brisson Lopes ,  Gavin Bernard Horn ,  Peerapol Tinnakornsrisuphap ,  Yu-Ting Yu

IPC: H04W28/02 ,  H04W72/08 ,  H04W24/10 ,  H04W80/08 ,  H04W28/06 ,  H04L1/08 ,  H04W76/15

Abstract: Certain aspects of the present disclosure provide techniques for determining a configuration for packet data convergence protocol (PDCP) duplication. Certain aspects provide a method for wireless communication. The method generally includes determining a PDCP duplication configuration corresponding to at least one of multi-connectivity (MC) or carrier-aggregation (CA) for communication of at least one bearer with a user-equipment (UE), wherein the determination is based on an indication corresponding to a link quality for the communication, and sending an indication of the determined configuration for the communication of the at least one bearer.