公开(公告)号：WO2019104513A1

公开(公告)日：2019-06-06

申请号：PCT/CN2017/113497

申请日：2017-11-29

Applicant: QUALCOMM INCORPORATED ,  PATIL, Vinay Rajkumar ,  XIAO, Gang ,  MAHESHWARI, Shailesh ,  UPRETEE, Rudhir ,  CHEN, Xing ,  LIU, Haiqin ,  WU, Peng ,  XIE, Ling ,  BATHWAL, Saket ,  GUO, Hongjin ,  LONG, Xiaojian

Inventor： PATIL, Vinay Rajkumar ,  XIAO, Gang ,  MAHESHWARI, Shailesh ,  UPRETEE, Rudhir ,  CHEN, Xing ,  LIU, Haiqin ,  WU, Peng ,  XIE, Ling ,  BATHWAL, Saket ,  GUO, Hongjin ,  LONG, Xiaojian

IPC: H04W24/10

CPC classification number: H04L1/1854 ,  H04L1/1848 ,  H04W28/0278

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication and more particularly for recovering missing RLC PDUs. In aspects, a method for wireless communications by a user equipment (UE) is provided. The method includes determining whether one or more grant conditions are met, and transmitting a partial status protocol data unit (PDU) and a buffer status report (BSR) based on the one or more grant conditions being met before starting a status prohibit timer if the one or more grant conditions are met. Numerous other aspects are provided.

公开(公告)号：WO2019006945A1

公开(公告)日：2019-01-10

申请号：PCT/CN2017/109727

申请日：2017-11-07

Applicant: QUALCOMM INCORPORATED ,  LIU, Haiqin ,  WU, Peng ,  XIAO, Gang ,  GUO, Jiming ,  MEYLAN, Arnaud ,  UPRETEE, Rudhir ,  MAHESHWARI, Shailesh ,  BATHWAL, Saket ,  CHEN, Xing ,  LONG, Xiaojian ,  NGUYEN, Bao Vinh ,  RAMAN, Ashwin

Inventor： LIU, Haiqin ,  WU, Peng ,  XIAO, Gang ,  GUO, Jiming ,  MEYLAN, Arnaud ,  UPRETEE, Rudhir ,  MAHESHWARI, Shailesh ,  BATHWAL, Saket ,  CHEN, Xing ,  LONG, Xiaojian ,  NGUYEN, Bao Vinh ,  RAMAN, Ashwin

IPC: H04W80/00

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In aspects, the apparatus may be a user equipment (UE). However, the apparatus may be implemented as another wireless communications device, such as a base station (e.g., evolved Node B). The apparatus may determine that the apparatus is to operate in a low-latency mode. The apparatus may configure at least one layer of the apparatus to operate in the low-latency mode based on the determination that the apparatus is to operate in the low-latency mode. The apparatus may communicate with a network through the configured at least one layer.

公开(公告)号：WO2018161337A1

公开(公告)日：2018-09-13

申请号：PCT/CN2017/076244

申请日：2017-03-10

Applicant: QUALCOMM INCORPORATED ,  GUO, Jiming ,  WU, Peng ,  BATHWAL, Saket ,  SHAHIDI, Reza ,  BALASUBRAMANIAN, Srinivasan ,  GHOLMIEH, Aziz ,  MEYLAN, Arnaud ,  LIU, Feilu

Inventor： GUO, Jiming ,  WU, Peng ,  BATHWAL, Saket ,  SHAHIDI, Reza ,  BALASUBRAMANIAN, Srinivasan ,  GHOLMIEH, Aziz ,  MEYLAN, Arnaud ,  LIU, Feilu

IPC: H04W74/04

CPC classification number: H04W72/1289 ,  H04W72/14

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, when engaged in a multimedia communication, that the user equipment is receiving an uplink grant without sending a scheduling request. A semi-persistent scheduling mode may not be activated when the user equipment is receiving the uplink grant. In some aspects, the user equipment may forgo transmission of at least one scheduling request based at least in part on determining that the user equipment is receiving the uplink grant. In some aspects, an access point may determine to perform scheduling to provide an uplink grant to a user equipment engaging in a multimedia communication. In some aspects, the access point may configure semi-persistent scheduling and scheduling request masking for a logical channel to cause the user equipment to forgo transmission of a scheduling request. Numerous other aspects are provided.

公开(公告)号：WO2018081983A1

公开(公告)日：2018-05-11

申请号：PCT/CN2016/104458

申请日：2016-11-03

Applicant: QUALCOMM INCORPORATED ,  LONG, Xiaojian ,  MAHESHWARI, Shailesh ,  WU, Peng ,  BANDARU, Venkateswarlu ,  XIAO, Gang ,  NGUYEN, Bao Vinh ,  BATHWAL, Saket ,  LIU, Haiqin ,  UPRETEE, Rudhir ,  CHEN, Xing ,  GUO, Hongjin ,  GUAN, Xuepan ,  CHEN, Xiaochen

Inventor： LONG, Xiaojian ,  MAHESHWARI, Shailesh ,  WU, Peng ,  BANDARU, Venkateswarlu ,  XIAO, Gang ,  NGUYEN, Bao Vinh ,  BATHWAL, Saket ,  LIU, Haiqin ,  UPRETEE, Rudhir ,  CHEN, Xing ,  GUO, Hongjin ,  GUAN, Xuepan ,  CHEN, Xiaochen

IPC: H04W24/04

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may transmit a session initiation protocol (SIP) message. The apparatus may initiate a timer based at least in part on the transmission of the SIP message. The apparatus may trigger, based at least in part on expiration of the timer, at least one of: a radio link failure (RLF) procedure for cell selection, or an out of service (OOS) procedure for radio access technology (RAT) selection.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置可以传送会话发起协议（SIP）消息。 该装置可以至少部分地基于SIP消息的传输来发起定时器。 该设备可以至少部分地基于定时器的到期来触发以下中的至少一个：用于小区选择的无线电链路失败（RLF）过程或用于无线电接入技术（RAT）选择的停止服务（OOS）过程

公开(公告)号：WO2017039912A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/044971

申请日：2016-08-01

Applicant: QUALCOMM INCORPORATED

Inventor： XIAO, Gang Andy ,  MAHESHWARI, Shailesh ,  GHOLMIEH, Aziz ,  LIU, Feilu ,  BATHWAL, Saket ,  UPRETEE, Rudhir ,  NGUYEN, Bao Vinh ,  LIU, Haiqin

IPC: H04L29/06 ,  H04L1/18 ,  H04L12/801 ,  H04L29/08

CPC classification number: H04W72/0446 ,  H04L1/188 ,  H04L1/1883 ,  H04L47/14 ,  H04L47/19 ,  H04L69/16 ,  H04L69/166 ,  H04L69/32 ,  H04L69/321 ,  H04L69/322 ,  H04W76/11

Abstract: Aspects described herein relate to wireless communications. Protocol data units (PDUs) can be received at a network layer from one or more transmitting nodes using a link associated with each respective transmitting node. One or more missing PDUs can be detected based, at least in part, on sequence numbers of the received PDUs. A timer can be started based on the detection of the one or more missing PDUs. In response to expiration of the timer, and without receiving the one or more missing PDUs before the expiration of the timer, a lower network layer can be notified that the one or more missing PDUs are received to prevent attempted transmitting/retransmitting or other processing of the one or more missing PDUs.

Abstract translation: 本文描述的方面涉及无线通信。 可以使用与每个相应发送节点相关联的链路从一个或多个发送节点在网络层处接收协议数据单元（PDU）。 至少部分地可以基于所接收的PDU的序列号来检测一个或多个丢失的PDU。 可以基于检测到一个或多个丢失的PDU来启动定时器。 响应于定时器的到期，并且在定时器期满之前没有接收到一个或多个丢失的PDU，可以通知下层网络层接收到一个或多个丢失的PDU，以防止尝试发送/重发或其他处理 一个或多个丢失的PDU。

公开(公告)号：WO2017019486A1

公开(公告)日：2017-02-02

申请号：PCT/US2016/043509

申请日：2016-07-22

Applicant: QUALCOMM INCORPORATED

Inventor： BRESSANELLI, Dominique, Francois ,  BATHWAL, Saket ,  SAH, Deepak

IPC: H04W28/06 ,  H04L29/06

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，在接收到与上下文不相关联的压缩分组时，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用于分组传输会话的上下文。

公开(公告)号：WO2016080996A1

公开(公告)日：2016-05-26

申请号：PCT/US2014/066612

申请日：2014-11-20

Applicant: QUALCOMM INCORPORATED

Inventor： BRESSANELLI, Dominique, Francois ,  BATHWAL, Saket ,  XIAO, Gang, Andy ,  MAHESHWARI, Shailesh

IPC: H04W28/06

CPC classification number: H04W28/04 ,  H04L1/22 ,  H04L5/0055 ,  H04L12/00 ,  H04L12/6418 ,  H04L29/06 ,  H04L69/04 ,  H04W28/06 ,  H04W56/00 ,  H04W56/001

Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). In some examples, the UE may identify an initialization and refresh (IR) packet at the radio link control (RLC) layer based the size of the IR packet, where the IR packet comprises a larger ciphered PDU size than a compressed RoHC packet. Accordingly, once the UE identifies the received packet as an IR packet, the UE may attempt to decipher the IR packet using one or more HFN offset values. In one example, the UE may determine whether the IR packet is deciphered correctly based on cyclic redundancy check (CRC) value of the deciphered IR packet. As a result, the present disclosure allows the UE to re-synchronize with the transmitting device by at least one of incrementing or decrementing an HFN value at the receiving device.

Abstract translation: 描述了用于用户设备（UE）的无线通信的方法，系统和设备。 在一些示例中，UE可以基于IR分组的大小来识别在无线电链路控制（RLC）层处的初始化和刷新（IR）分组，其中IR分组包括比压缩的RoHC分组更大的加密的PDU大小。 因此，一旦UE将接收的分组识别为IR分组，则UE可以尝试使用一个或多个HFN偏移值来解密IR分组。 在一个示例中，UE可以基于解密的IR分组的循环冗余校验（CRC）值来确定IR分组是否正确解密。 结果，本公开允许UE通过在接收设备处递增或递减HFN值中的至少一个来与发送设备重新同步。

公开(公告)号：WO2021097031A1

公开(公告)日：2021-05-20

申请号：PCT/US2020/060141

申请日：2020-11-12

Applicant: QUALCOMM INCORPORATED

Inventor： SEKAR, Sivashankar ,  BATHWAL, Saket ,  HSU, Liangchi ,  TARIMALA, Raghuveer Ramakrishna Srinivas

IPC: H04L1/16 ,  H04L1/18

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：WO2019169576A1

公开(公告)日：2019-09-12

申请号：PCT/CN2018/078280

申请日：2018-03-07

Applicant: QUALCOMM INCORPORATED ,  SEKAR, Sivashankar ,  BATHWAL, Saket ,  WU, Peng

Inventor： SEKAR, Sivashankar ,  BATHWAL, Saket ,  WU, Peng

IPC: H04W52/48

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE). The method generally includes: attempting a random access channel (RACH) procedure, at a first coverage enhancement (CE) level, with a base station (BS); determining a random access response (RAR) reception from the BS failed; measuring signal quality of the BS observed at the UE in response to the determined RAR reception failure; determining whether to adjust the first CE level to a second CE level based at least in part on the measured signal quality; and starting a next RACH procedure attempt, at the first CE level or the second CE level, with the BS. In one aspect, a method is provided which may be performed by a wireless device such as a UE, for example, that is preparing for a random access channel (RACH) procedure with a base station (BS). The method generally includes: measuring signal quality of the BS observed at the UE; determining a coverage enhancement (CE) level and a RACH attempt counter value based at least in part of the measured signal quality; and attempting the RACH procedure based at least in part on the determined CE level and RACH attempt counter value.

公开(公告)号：WO2019161524A1

公开(公告)日：2019-08-29

申请号：PCT/CN2018/076941

申请日：2018-02-22

Applicant: QUALCOMM INCORPORATED ,  BATHWAL, Saket ,  BRESSANELLI, Dominique Francois ,  XIAO, Gang ,  LIU, Haiqin ,  WU, Peng ,  SEKAR, Sivashankar

Inventor： BATHWAL, Saket ,  BRESSANELLI, Dominique Francois ,  XIAO, Gang ,  LIU, Haiqin ,  WU, Peng ,  SEKAR, Sivashankar

IPC: H04W24/10 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an uplink grant identifying a next transmission opportunity. The UE may determine that transmission of a buffer status report (BSR) would interfere with transmission of additional queued data. In some cases, the transmission of BSRs may have precluded transmission of the additional queued data. The UE may determine that a number of prior transmissions in which control data or signaling data was not sent satisfies a threshold. The UE may further transmit a truncated BSR during the next transmission opportunity based at least in part on the threshold being satisfied. The truncated BSR may include buffer information for a highest priority logical channel group or buffer information for the logical channel group that includes the most queued data. The UE may also transmit additional queued data during the next transmission opportunity.