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：US11503663B2

公开(公告)日：2022-11-15

申请号：US16920199

申请日：2020-07-02

Applicant: QUALCOMM Incorporated

Inventor： Ruiming Zheng ,  Xipeng Zhu ,  Karthika Paladugu

IPC: H04W76/20 ,  H04W76/19 ,  H04L47/34

Abstract: Disclosed are techniques for wireless communication. In an aspect, a packet data convergence protocol (PDCP) entity of a receiver device receives, from a radio link control (RLC) entity of the receiver device, a plurality of RLC data packets received from a transmitter device over an RLC unacknowledged mode (UM) data radio bearer (DRB) or RLC transparent mode (TM) DRB. The PDCP entity generates a plurality of PDCP data packets corresponding to the plurality of RLC data packets. The receiver device determines to send a PDCP status report indicating a reception status at the receiver device of the plurality of PDCP data packets and transmits the PDCP status report to a PDCP entity of the transmitter device. The receiver device receives, in response to sending the PDCP status report, one or more PDCP data packets of the plurality of PDCP data packets that were not successfully received at the receiver device.

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：US11197344B2

公开(公告)日：2021-12-07

申请号：US16638110

申请日：2018-08-09

Applicant: Qualcomm Incorporated

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

IPC: H04W4/00 ,  H04W80/02 ,  H04L1/16 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a transmitting device may identify a Radio Link Control (RLC) service data unit (SDU) to be transmitted to a receiving device. In some cases, the transmitting device may not have access to sufficient resources to transmit the entire RLC SDU. As such, the transmitting device may segment the RLC SDU into RLC SDU segments, and the transmitting device may transmit the RLC SDU segments to the receiving device. If an RLC layer at the receiving device receives one or more RLC SDU segments out of sequence, the RLC layer may initiate a reassembly (or reordering) timer. The RLC layer may reassemble the successfully received RLC SDU segments to be passed to upper layers. Once the timer expires, the RLC layer may declare that the missing RLC SDU segments are lost.

公开(公告)号：US20210051651A1

公开(公告)日：2021-02-18

申请号：US16993023

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Yan Zhou ,  Tao Luo ,  Ruiming Zheng ,  Gavin Bernard Horn

IPC: H04W72/04 ,  H04W72/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may select a beam from a set of beams and transmit an indication of the selected beam in a media access control (MAC) control element to establish a communication link with a base station. In some cases, the UE may select the beam and indicate the selection based on identifying a beam failure and/or determining to perform a random access procedure. When transmitting the indication of the selected beam, the UE may obtain an uplink resource for the transmission based on an availability of the uplink resource. For example, if the uplink resource is available, the UE may transmit the indication of the selected beam multiplexed with an uplink transmission. Alternatively, if the uplink resource is unavailable, the UE may request uplink resources for transmitting the indication of the selected beam.

公开(公告)号：US20210050972A1

公开(公告)日：2021-02-18

申请号：US16969320

申请日：2019-02-13

Applicant: Qualcomm incorporated

Inventor： Ruiming Zheng ,  Chenxi Hao ,  Yu Zhang

IPC: H04L5/00 ,  H04W72/08 ,  H04B7/06

Abstract: Techniques are described herein for activating and/or deactivating a semi-persistent configuration for one or more channel state information reference signal (CSI-RS) resource sets using a medium access control (MAC) control element (CE) and/or radio resource control (RRC) signaling. The MAC CE may include an indicator to indicate whether a semi-persistent configuration for a CSI resource set that includes one or more CSI resources is to be activated or deactivated. The MAC CE may also include identifiers for each of the CSI resource sets having the semi-persistent configuration activated or deactivated. In some cases, RRC messages may be used to communicate quasi-collocation (QCL) relationships associated with the CSI resources of the CSI resource sets. In some cases, the MAC CE may communicate at least some of or a portion of the information related to QCL relationships.

公开(公告)号：US20200245400A1

公开(公告)日：2020-07-30

申请号：US16638110

申请日：2018-08-09

Applicant: Qualcomm Incorporated

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

IPC: H04W80/02 ,  H04L1/16 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a transmitting device may identify a Radio Link Control (RLC) service data unit (SDU) to be transmitted to a receiving device. In some cases, the transmitting device may not have access to sufficient resources to transmit the entire RLC SDU. As such, the transmitting device may segment the RLC SDU into RLC SDU segments, and the transmitting device may transmit the RLC SDU segments to the receiving device. If an RLC layer at the receiving device receives one or more RLC SDU segments out of sequence, the RLC layer may initiate a reassembly (or reordering) timer. The RLC layer may reassemble the successfully received RLC SDU segments to be passed to upper layers. Once the timer expires, the RLC layer may declare that the missing RLC SDU segments are lost.

公开(公告)号：US20200229021A1

公开(公告)日：2020-07-16

申请号：US16500763

申请日：2018-03-26

Applicant: Ruiming ZHENG ,  Xipeng ZHU ,  Huichun LIU ,  Qualcomm Incorporated

Inventor： Ruiming Zheng ,  Xipeng Zhu ,  Huichun Liu

IPC: H04W28/02 ,  H04W88/16 ,  H04W80/02 ,  H04W80/08 ,  H04W76/12

Abstract: Wireless communications systems as described herein may be configured to provide user equipment (UE) assisted information for caching data at a network node external to a core network (CN). In some cases, the UE may provide an acceleration indicator (AI) that a base station may receive and identify as caching information. The base station, upon identifying that the AI is present in an uplink packet, may transmit the packet to a gateway having a local cache. If the uplink packet does not have an AI, the base station may route the uplink packet according to an address (e.g., a uniform resource locator (URL)) contained in the packet.