公开(公告)号：US12075381B2

公开(公告)日：2024-08-27

申请号：US17095344

申请日：2020-11-11

Applicant: QUALCOMM Incorporated

Inventor： Sivashankar Sekar ,  Saket Bathwal ,  Liangchi Hsu ,  Raghuveer Ramakrishna Srinivas Tarimala

IPC: H04W64/00 ,  H04W74/00 ,  H04W74/08 ,  H04W84/18

CPC classification number: H04W64/003 ,  H04W74/002 ,  H04W74/0866 ,  H04W84/18

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit a data transmission to a receiver. In some examples, the data transmission may be a radio link control (RLC) protocol data unit (PDU) transmission. The UE may store the data transmission in a retransmission buffer, and transmit a feedback request to the receiver in a subsequent data transmission based on a system memory utilization threshold for the retransmission buffer being satisfied due to storage of the data transmission.

公开(公告)号：US11653263B2

公开(公告)日：2023-05-16

申请号：US17195234

申请日：2021-03-08

Applicant: QUALCOMM Incorporated

Inventor： Saket Bathwal ,  Deepak Sah ,  Leena Zacharias ,  Rudhir Varna Upretee ,  Gang Andy Xiao ,  Venukant Sahu

IPC: H04W28/06 ,  H04W28/02 ,  H04W72/1268 ,  H04L1/00 ,  H04W72/14 ,  H04W80/02 ,  H04W72/04

CPC classification number: H04W28/06 ,  H04L1/0008 ,  H04W28/0278 ,  H04W72/042 ,  H04W72/1268 ,  H04W72/14 ,  H04W80/02

Abstract: In one aspect, a method of wireless communication includes determining a number of bytes in a compressed queue and a number of bytes in an uncompressed queue. The method also includes transmitting a buffer status report (BSR) indicating at least the number of bytes in the compressed queue. The method includes receiving an uplink grant indicating one or more uplink grant resources and a number of bytes allocated for the one or more uplink grant resources. The method also includes generating a transport block (TB) based on the uplink grant and the BSR and from data of at least the compressed queue, wherein the TB includes one or more compressed packets and one or more uncompressed packets. The method further includes transmitting a PUSCH transmission including the TB during an uplink grant resource of the one or more uplink grant resources. Other aspects and features are also claimed and described.

公开(公告)号：US11382113B2

公开(公告)日：2022-07-05

申请号：US16966140

申请日：2018-03-08

Applicant: QUALCOMM INCORPORATED

Inventor： Haiqin Liu ,  Gang Xiao ,  Peng Wu ,  Arvind Santhanam ,  Saket Bathwal ,  Rudhir Upretee ,  Xing Chen ,  Xiaojian Long ,  Shailesh Maheshwari

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/10 ,  H04W72/14

Abstract: In wireless communication, uplink communication by a wireless communication system user equipment may include providing data packets by a data source in the user equipment, detecting a pattern relating to uplink transmission of the plurality of data packets, and scheduling transmission of the plurality of data packets by the user equipment. One or more aspects of scheduling transmission of the plurality of data packets may be based on the detected pattern.

公开(公告)号：US11357037B2

公开(公告)日：2022-06-07

申请号：US16619042

申请日：2018-04-20

Applicant: QUALCOMM Incorporated

Inventor： Saket Bathwal ,  Arvind Santhanam ,  Gang Xiao ,  Rudhir Upretee ,  Scott Hoover ,  Haiqin Liu ,  Xing Chen ,  Xiaojian Long ,  Peng Wu ,  Ashwin Raman ,  Thomas Christol

IPC: H04W72/14 ,  H04W72/12 ,  H04L5/00

Abstract: Various aspects of the disclosure relate to techniques for handling out-of-order grants. For example, upon detection of an out-of-order grant, the best scheduling policy for handling the out-of-order grants may be selected based on at least one traffic condition. In some aspects, a scheduling policy may involve canceling and regenerating out-of-order grants. In some aspects, a scheduling policy may involve reordering data units. In some aspects, a scheduling policy may involve designating a reorder time window.

公开(公告)号：US10009401B2

公开(公告)日：2018-06-26

申请号：US14863416

申请日：2015-09-23

Applicant: QUALCOMM Incorporated

Inventor： Ambuj Agrawal ,  Navid Ehsan ,  Nagamanikandan Sivakumar ,  Saket Bathwal ,  Mohammed Al Khairy

IPC: H04L29/06

CPC classification number: H04L65/604 ,  H04L65/1016 ,  H04L65/607 ,  H04L65/608 ,  H04L69/04 ,  H04L69/22

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a stream of RTP data packets over a wireless channel and applies ROHC decompression to decode the packets. Upon a failure of ROHC decompression, the apparatus identifies the RTP sequence number (SN), RTP Timestamp (TS), and PDCP receive time (RT) of a prior successfully decoded packet, and the PDCP SN and PDCP RT of the failed packets. Using the identified information, the apparatus estimates the RTP SN and RTP TS of each of the failed packets. The apparatus decodes the packets using the estimated information.

公开(公告)号：US20170033911A1

公开(公告)日：2017-02-02

申请号：US15216480

申请日：2016-07-21

Applicant: QUALCOMM Incorporated

Inventor： Dominique Francois Bressanelli ,  Saket Bathwal ,  Deepak Sah

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/16

CPC classification number: H04L5/0055 ,  H03M7/3079 ,  H03M7/6047 ,  H03M13/6306 ,  H03M13/6312 ,  H04L1/1685 ,  H04L1/1854 ,  H04L69/04 ,  H04L69/22 ,  H04W28/06

Abstract: A recovery mechanism for robust header compression (ROHC) is disclosed for wireless communication systems. The ROHC recovery mechanism may allow a receiver and/or transmitter in the wireless systems to establish or reestablish a context of a packet transmission session when an initialization and refresh message is lost. In the ROHC recovery mechanism, upon receiving a compressed packet that is not associated with a context, a receiver sends a message to a transmitter suggesting the transmitter to transition to another mode. Upon receiving a subsequent packet transmission that is not associated with a context, the receiver sends another message indicating that a context has not been established or has been lost. The transmitter may then send the receiver necessary information to establish a context for the packet transmission session.

Abstract translation: 公开了用于无线通信系统的鲁棒报头压缩（ROHC）的恢复机制。 当初始化和刷新消息丢失时，ROHC恢复机制可以允许无线系统中的接收机和/或发射机建立或重新建立分组传输会话的上下文。 在ROHC恢复机制中，在接收到与上下文无关的压缩分组时，接收机向发射机发送消息，建议发射机转换到另一模式。 在接收到与上下文不相关联的后续分组传输时，接收机发送指示上下文尚未建立或丢失的另一消息。 然后，发射机可以发送接收机必要的信息以建立分组传输会话的上下文。