公开(公告)号：US12207339B2

公开(公告)日：2025-01-21

申请号：US17753546

申请日：2019-09-29

Applicant: QUALCOMM Incorporated

Inventor： Leena Zacharias ,  Arnaud Meylan ,  Arvind Vardarajan Santhanam ,  Ling Xie ,  Subashini Krishnamurthy ,  Arun Prasanth Balasubramanian ,  Sundaresan Tambaram Kailasam ,  Vaishakh Rao ,  Vishal Dalmiya ,  Prakriti Gupta ,  Kuo-Chun Lee

IPC: H04W76/38 ,  H04W52/02 ,  H04W76/18 ,  H04W76/27 ,  H04W76/28

Abstract: Certain aspects of the present disclosure provide techniques for releasing an RRC connection by a user equipment (UE). A method that may be performed by the UE includes establishing an RRC connection, determining a time duration for a release timer, resetting the release timer, monitoring the RRC connection, and releasing the RRC connection.

公开(公告)号：US12143858B2

公开(公告)日：2024-11-12

申请号：US17755145

申请日：2019-11-25

Applicant: QUALCOMM Incorporated

Inventor： Ling Xie ,  Qingxin Chen ,  Reza Shahidi ,  Jun Hu ,  Sivaram Srivenkata Palakodety ,  Vishal Dalmiya ,  Wei-Jei Song ,  Arnaud Meylan ,  Zhibin Dang ,  Karthikeyan Sabapathi

IPC: H04W28/082 ,  H04W28/02 ,  H04W76/15

Abstract: A user equipment (UE) configured for dual connectivity with a split bearer configuration may transmit uplink data packets to one or both a master cell group (MCG) and a secondary cell group (SCG). The UE may transmit an uplink transmission from a packet data convergence protocol (PDCP) entity over one or both of a first radio link control (RLC) entity associated with the MCG and a second RLC entity associated with the SCG. The configuration including a transmit buffer threshold. The UE may receive, at the PDCP entity, an uplink switch start indication. The UE may activate the second RLC entity in response to receiving the uplink switch start indication. The UE may transmit a buffer status report according to a current transmit buffer level plus the transmit buffer threshold. Accordingly, the UE may communicate with the SCG based on the uplink switch start indication.

公开(公告)号：US11910479B2

公开(公告)日：2024-02-20

申请号：US17447035

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Can Zhao ,  Suli Zhao ,  Xinchen Zhang ,  Reza Shahidi ,  Arnaud Meylan ,  Liping Shen ,  Ajith Tom Payyappilly ,  Juan Zhang ,  Tom Chin

IPC: H04W8/18 ,  H04M1/72448

CPC classification number: H04W8/18 ,  H04M1/72448

Abstract: A method of wireless communication performed by a user equipment (UE) includes: operating in a Dual SIM Dual Active (DSDA) mode or a Dual SIM Dual Standby (DSDS) mode in which a first subscriber identity module (SIM) is designated as a default data subscription (DDS); determining a recommendation to change the DDS from the first SIM to a second SIM at a modem, informing a user of the recommendation to change the DDS; changing the DDS in response to, at least in part, the recommendation an input from the user; updating a first state variable to indicate a state of the DDS; and routing internet data to the second SIM.

公开(公告)号：US11825415B2

公开(公告)日：2023-11-21

申请号：US17399290

申请日：2021-08-11

Applicant: QUALCOMM Incorporated

Inventor： Leena Zacharias ,  Arnaud Meylan ,  Reza Shahidi ,  Lan Lan ,  Qingxin Chen ,  Farrukh Rashid ,  Zhibin Dang ,  Akshay Kumar

IPC: H04W72/04 ,  H04W76/28 ,  H04W52/02 ,  H04W72/23 ,  H04L1/1812 ,  H04L1/20

CPC classification number: H04W52/0232 ,  H04L1/1819 ,  H04L1/203 ,  H04W72/23

Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE starts a first timer (such as a discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round-trip-time (RTT) timer), after sending an uplink (UL) data transmission to a network entity. The UE then starts a second timer (such as a DRX retransmission timer) when the first timer expires. The UE then determines whether to wake up or sleep for a duration of the second timer based on a prior block error rate (BLER).

公开(公告)号：US11336355B2

公开(公告)日：2022-05-17

申请号：US16674724

申请日：2019-11-05

Applicant: QUALCOMM Incorporated

Inventor： Ravi Balasubramanian ,  Praveen Adusumilli ,  Ammar Kitabi ,  Arnaud Meylan

IPC: H04B7/06 ,  H04W24/10 ,  H04W28/02 ,  H04W28/06 ,  H04W72/08 ,  H04W88/06

Abstract: Certain aspects of the present disclosure provide techniques for channel quality indicator (CQI)-based downlink buffer management as well as mitigating throughput loss in dual connectivity with multi-SIM. A method that may be performed by a user equipment (UE) includes communicating with a first network on a first channel using a first technology, determining whether a tune-away associated with the first technology will occur, and outputting, for transmission to the first network on a second channel using a second technology, a channel quality indicator (CQI) report corresponding to the second channel if the tune-away will occur, wherein the CQI report indicates a lower CQI for the second channel than a current CQI for the second channel.

公开(公告)号：US11304249B2

公开(公告)日：2022-04-12

申请号：US16715514

申请日：2019-12-16

Applicant: QUALCOMM INCORPORATED

Inventor： Sitaramanjaneyulu Kanamarlapudi ,  Arnaud Meylan ,  Shailesh Maheshwari ,  Arun Prasanth Balasubramanian ,  Vishal Dalmiya

IPC: H04W76/15 ,  H04W36/00 ,  H04L1/16 ,  H04W28/02 ,  H04W36/30 ,  H04W52/36 ,  H04W80/08

Abstract: Wireless communications systems and methods related to buffer/memory management for multi-connectivity in a wireless communication network are provided. A wireless communication device transmits a first portion of a plurality of data packets using a first radio access technology (RAT). The wireless communication device transmits a second portion of the plurality of data packets using a second RAT different from the first RAT. The wireless communication device stores at least some of the plurality of data packets in a memory pending an acknowledgement (ACK) indication associated with at least a first data packet of the plurality of data packets. The wireless communication device determines a transmission configuration for at least the first data packet and a second data packet based on whether a threshold occupancy of the memory is satisfied. Other aspects and features are also claimed and described.

公开(公告)号：US20210185747A1

公开(公告)日：2021-06-17

申请号：US16715514

申请日：2019-12-16

Applicant: QUALCOMM INCORPORATED

Inventor： Sitaramanjaneyulu Kanamarlapudi ,  Arnaud Meylan ,  Shailesh Maheshwari ,  Arun Prasanth Balasubramanian ,  Vishal Dalmiya

IPC: H04W76/15 ,  H04W28/02 ,  H04W80/08 ,  H04L1/16 ,  H04W36/00 ,  H04W36/30 ,  H04W52/36

Abstract: Wireless communications systems and methods related to buffer/memory management for multi-connectivity in a wireless communication network are provided. A wireless communication device transmits a first portion of a plurality of data packets using a first radio access technology (RAT). The wireless communication device transmits a second portion of the plurality of data packets using a second RAT different from the first RAT. The wireless communication device stores at least some of the plurality of data packets in a memory pending an acknowledgement (ACK) indication associated with at least a first data packet of the plurality of data packets. The wireless communication device determines a transmission configuration for at least the first data packet and a second data packet based on whether a threshold occupancy of the memory is satisfied. Other aspects and features are also claimed and described.

公开(公告)号：US10397816B2

公开(公告)日：2019-08-27

申请号：US14962530

申请日：2015-12-08

Applicant: QUALCOMM Incorporated

Inventor： Youhan Kim ,  Zhanfeng Jia ,  Srinivas Katar ,  Rahul Malik ,  Jay Kumar Sundararajan ,  Arnaud Meylan ,  Ning Zhang ,  George Cherian

IPC: H04W24/10 ,  H04W48/16 ,  H04W28/16 ,  H04W48/12 ,  H04W48/20

Abstract: Methods, apparatus, and computer-readable media for wireless communication may involve techniques for throughput estimation. An expected air time parameter may be used as a parameter for estimating throughput. The expected air time parameter may be indicative of an estimated air time fraction obtainable for communications using an access point (AP), for example, between a wireless station (STA) and the AP. Either the expected air time parameter or an estimated air time fraction determined (e.g., calculated) from the expected air time parameter may be transmitted from the AP to the STA (or other communication device) to allow the STA (or other communication device) to determine an estimated throughput for communications using the AP.

公开(公告)号：US20180049208A1

公开(公告)日：2018-02-15

申请号：US15672566

申请日：2017-08-09

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Arnaud Meylan ,  Sivaramakrishna Veerepalli

IPC: H04W72/04 ,  H04L12/709 ,  H04W28/08 ,  H04L12/26 ,  H04L12/803

CPC classification number: H04W72/0486 ,  H04L43/0882 ,  H04L43/16 ,  H04L45/245 ,  H04L47/125 ,  H04W28/085 ,  H04W48/16 ,  H04W72/1284 ,  H04W76/36 ,  H04W88/06

Abstract: Techniques for wireless communication at a user equipment (UE) are described. One method includes receiving, from a first access point using a first radio access technology (RAT), a configuration associated with a logical traffic connection, in which the configuration includes at least one parameter for communicating data associated with the logical traffic connection via a second access point associated with a second RAT; determining a buffer reporting value associated with the logical traffic connection based at least in part on a total amount of data buffered in a packet data convergence protocol (PDCP) queue associated with the logical traffic connection and the at least one parameter; and transmitting a buffer status report (BSR) including the buffer reporting value to the first access point.

公开(公告)号：US20180041415A1

公开(公告)日：2018-02-08

申请号：US15227720

申请日：2016-08-03

Applicant: QUALCOMM Incorporated

Inventor： Sirin Nitinawarat ,  Arnaud Meylan ,  Sivaramakrishna Veerepalli

IPC: H04L12/26 ,  H04W36/00 ,  H04L5/00 ,  H04W24/04 ,  H04W48/16 ,  H04L29/06 ,  H04W68/02

CPC classification number: H04L43/106 ,  H04L1/1854 ,  H04L1/188 ,  H04L5/0007 ,  H04L5/0055 ,  H04L69/16 ,  H04L69/163 ,  H04L69/168 ,  H04L69/22 ,  H04L69/28 ,  H04W24/04 ,  H04W28/0273 ,  H04W36/0016 ,  H04W48/16 ,  H04W68/02 ,  H04W80/06

Abstract: Methods, systems, and devices for wireless communication are described. A communication device may rewrite a TCP timestamp, delay sending of a TCP acknowledgement packet, or both, to reduce the likelihood that a TCP connection times out during a radio impairment event. The may establish a transmission control protocol (TCP) connection with a remote host via a first radio access technology (RAT). The communication device may determine a time stamp value associated with traffic of the TCP connection. The communication device may adjust the time stamp value in a TCP header based at least in part on a radio impairment event that is scheduled or predicted to occur within a defined amount of time. The communication device may also determine a duration of a delay and delay communicating a TCP acknowledgement packet over the TCP connection by at least the duration of the delay.