公开(公告)号：US20220417997A1

公开(公告)日：2022-12-29

申请号：US17685843

申请日：2022-03-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Chao Wei ,  Muhammad Nazmul Islam ,  Linhai He ,  Yongle Wu ,  Chun-Hao Hsu ,  Murali Menon

IPC: H04W74/08 ,  H04L5/16

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques relate to improved methods, systems, devices, and apparatuses that support random-access occasion (RO) selection for reduced-capability (RedCap) user equipment (UEs). A RedCap UE operating in a half-duplex mode may use the techniques described herein to efficiently select an RO in which to transmit a random-access preamble based on a duration between a latest received downlink transmission and the RO satisfying a threshold duration. The UE may receive system information mapping a set of synchronization signal blocks (SSBs) to a set of ROs. The UE may then select an RO from the set of ROs in which to transmit the random-access preamble such that the UE has sufficient time to transition from a receive mode to a transmit mode to transmit the random-access preamble.

公开(公告)号：US11147072B2

公开(公告)日：2021-10-12

申请号：US16584649

申请日：2019-09-26

Applicant: QUALCOMM incorporated

Inventor： Le Liu ,  Alberto Rico Alvarino ,  Vijayvaradharaj Tirucherai Muralidharan ,  Murali Menon

IPC: H04W72/04 ,  H04W4/80 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, devices such as band limited (BL) or coverage enhancement (CE) user equipment (UE) having limited transmitting and receiving capability may operate using a subset of a system bandwidth of a carrier (e.g., narrowbands). To support frequency hopping or frequency diversity in transmissions, for example, such devices may utilize retuning when a resource allocation moves from a first narrowband to a second narrowband. Retuning, however, may create challenges when transmitting and receiving capability is limited. Aspects of this disclosure may support a flexible starting physical resource block (PRB) for indicating new resource allocations for BL or CE UEs. In some aspects, a UE is disclosed which may retune between consecutive transmission time intervals (TTIs) or subframes, for example, from a first tuning band to a second tuning band (e.g., a newly defined retuning narrowband).

公开(公告)号：US20160315744A1

公开(公告)日：2016-10-27

申请号：US15000973

申请日：2016-01-19

Applicant: QUALCOMM Incorporated

Inventor： Zae Yong Choi ,  Omesh Kumar Handa ,  Yuan Wang ,  Rami Alnatsheh ,  Syam Pavan Vadapalli ,  Murali Menon

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18

CPC classification number: H04L5/0048 ,  H04L1/1825 ,  H04L1/1887 ,  H04L5/0055 ,  H04W72/0406 ,  H04W88/06

Abstract: Aspects of mitigating throughput degradation during wireless communication include determining that a first transmission signal fails decoding at a network entity due to transmit (TX) blanking when a user equipment (UE) supports dual subscriber identity module dual active (DSDA) and is operating in hybrid automatic repeat request (HARQ) with incremental redundancy; determining whether a first retransmission signal for the first transmission signal fails decoding at the network entity; and retransmitting the first transmission signal as a new transmission signal when a determination is made that the first retransmission signal for the first transmission signal fails decoding at the network entity.

Abstract translation: 减轻无线通信期间的吞吐量降级的方面包括：当用户设备（UE）支持双用户识别模块双重活动（DSDA）并且在混合中操作时，由于发送（TX）消隐，确定第一传输信号在网络实体处失败解码 具有增量冗余的自动重发请求（HARQ） 确定所述第一传输信号的第一重传信号是否在所述网络实体处失败解码; 并且当确定第一传输信号的第一重传信号在网络实体处的解码失败时，将第一传输信号重发为新的传输信号。

公开(公告)号：US20160242185A1

公开(公告)日：2016-08-18

申请号：US14858150

申请日：2015-09-18

Applicant: QUALCOMM Incorporated

Inventor： Omesh Kumar Handa ,  Yi Zhang ,  Anoop Ramakrishna ,  Murali Menon ,  Yuan Wang ,  Yunsong Mu

IPC: H04W72/04

CPC classification number: H04W52/281 ,  H04W28/08 ,  H04W28/18 ,  H04W52/286 ,  H04W52/346

Abstract: A user equipment (UE) determines a first transmit power parameter for a primary carrier and a secondary carrier of a multi-carrier uplink, based on a first data power allocated for a first data type to be transmitted on the multi-carrier uplink. The UE determines a first maximum enhanced uplink transport format combination indicator (E-TFCI) for the primary carrier and the secondary carrier based on the first transmit power parameter. If the primary carrier or the secondary carrier has data of a second data type for transmission, the UE determines a second data power allocated for the first data type utilizing the first maximum E-TFCI as a reference E-TFCI. If a difference in value between the first data power and the second data power is less than a threshold value, the UE utilizes the first transmit power parameter for transmitting data on the primary carrier and the secondary carrier.

Abstract translation: 用户设备（UE）基于为在多载波上行链路上发送的第一数据类型分配的第一数据功率，确定主载波和多载波上行链路的辅载波的第一发射功率参数。 UE基于第一发射功率参数确定主载波和辅载波的第一最大增强上行链路传输格式组合指示符（E-TFCI）。 如果主载波或辅载波具有用于传输的第二数据类型的数据，则UE使用第一最大E-TFCI作为参考E-TFCI来确定为第一数据类型分配的第二数据功率。 如果第一数据功率和第二数据功率之间的差值小于阈值，则UE利用第一发射功率参数在主载波和辅载波上传输数据。