公开(公告)号：US10979927B2

公开(公告)日：2021-04-13

申请号：US16801070

申请日：2020-02-25

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Peter Gaal ,  Aamod Khandekar ,  Alexei Yurievitch Gorokhov ,  Peter Pui Lok Ang

IPC: H04W24/10 ,  H04L25/02 ,  H04W76/28 ,  H04W56/00 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may configure a UE to transmit a cross link interference reference signal (CLI-RS) using a bandwidth and frequency similar to those used for a synchronization signal. In another aspect, a BS may may configure a UE to measure a cross link interference reference signal (CLI-RS) transmitted using a bandwidth and frequency similar to those used for a synchronization signal. In other aspects, a base station may transmit, to a UE, an instruction to transmit or measure a CLI-RS. Numerous other aspects are provided.

公开(公告)号：US20200351903A1

公开(公告)日：2020-11-05

申请号：US16863901

申请日：2020-04-30

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Seyedkianoush Hosseini ,  Peter Gaal ,  Aamod Khandekar

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

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first downlink control information (DCI) at a first time, and may receive a second DCI at a second, later time. Each DCI may contain scheduling information for scheduling a number of transmissions at the UE. A transmission associated with the first DCI on a first cell may be scheduled to start before or during a transmission associated with the second DCI on a second cell. The UE may then determine priorities associated with the first and second cells. In cases where the priority of the second cell is greater than the priority of the first cell, the UE may transmit the second scheduled transmission before it transmits the first scheduled transmission. As a result, the UE may prioritize transmitting the second scheduled transmission before the first scheduled transmission.

公开(公告)号：US20200351027A1

公开(公告)日：2020-11-05

申请号：US16863903

申请日：2020-04-30

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Amir Aminzadeh Gohari ,  Jaeyoung Kwak ,  Peter Gaal ,  Aamod Khandekar ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Wanshi Chen ,  Enoch Shiao-Kuang Lu ,  Gabi Sarkis ,  Chao Jin

IPC: H04L1/18 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may interrupt a user equipment (UE) during transport block (TB) encoding. The UE may cancel transmission (e.g., suppress processing) of a TB based on the interruption, such that a first subset of code blocks is encoded and a second subset is unencoded. In some cases, the UE may receive a re-transmission request for a code block including cyclic redundancy check (CRC) bits for the TB, where the CRC bits are not prepared. In one example, the UE may modify the CRC bits (e.g., set them to a common value, drop them, etc.) to reduce processing time. In another example, the base station may request re-transmission of all preempted code blocks, supporting TB CRC calculation. In another example, the base station or UE may extend a processing timeline for the re-transmission to support TB CRC calculation.

公开(公告)号：US20200314761A1

公开(公告)日：2020-10-01

申请号：US16805430

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Peter Gaal ,  Wei Yang ,  Yi Huang ,  Wanshi Chen ,  Xiao Feng Wang ,  Seyed Ali Akbar Fakoorian ,  Alexandros Manolakos ,  James Beckman ,  Aamod Khandekar

IPC: H04W52/14 ,  H04W52/08 ,  H04W8/24 ,  H04L25/02 ,  H04L5/00 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a plurality of transmit power control commands identifying a plurality of transmit power values, wherein the plurality of transmit power control commands relate to a set of out-of-order communications. The UE may determine a transmit power for a communication based at least in part on the plurality of transmit power control commands. The UE may transmit the communication based at least in part on the determining the transmit power. Numerous other aspects are provided.

公开(公告)号：US10291349B2

公开(公告)日：2019-05-14

申请号：US15172707

申请日：2016-06-03

Applicant: QUALCOMM Incorporated

Inventor： Aamod Khandekar ,  Avneesh Agrawal

IPC: H04L1/00 ,  H04L1/18 ,  H04L1/16

Abstract: Techniques for using multiple modulation schemes for a single packet are described. Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.

公开(公告)号：US20180014301A1

公开(公告)日：2018-01-11

申请号：US15642104

申请日：2017-07-05

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Seyedkianoush Hosseini ,  Peter Gaal ,  Srinivas Yerramalli ,  Hao Xu ,  Jing Sun ,  Shimman Arvind Patel ,  Aamod Khandekar

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/04 ,  H04L1/18 ,  H04W88/02

CPC classification number: H04W72/0446 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/00 ,  H04L5/0048 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/27 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.

公开(公告)号：US09413481B2

公开(公告)日：2016-08-09

申请号：US14157998

申请日：2014-01-17

Applicant: QUALCOMM Incorporated

Inventor： Alexei Gorokhov ,  Aamod Khandekar

IPC: H04B7/216 ,  H04J13/00 ,  H04W72/04

CPC classification number: H04J13/0003 ,  H04B2201/70701 ,  H04J13/00 ,  H04W72/0406

Abstract: In a communication system wherein a CDMA segment at each access point consists of multiple sub-segments a three frame transmission time interval (TTI) with eight retransmissions is utilized for data transmission. The access point not only specifies the interlaces to be utilized for data transmission it also assigns packet start interlaces for particular access terminals. An auxiliary pilot channel R-AuxPICH is transmitted by an access terminal along with CDMA data on reverse link. The ratio of R-AuxPICH to R-PICH is varied based on ACK/NACK feedback. A reverse link activity bit (RAB) which can be used as an emergency load-control mechanism for non-QoS flows is also disclosed.

Abstract translation: 在其中每个接入点处的CDMA分段由多个子分段组成的通信系统中，具有八个重传的三帧传输时间间隔（TTI）用于数据传输。 接入点不仅指定要用于数据传输的交织，而且还为特定接入终端分配分组起始交织。 辅助导频信道R-AuxPICH由接入终端与反向链路上的CDMA数据一起发送。 R-AuxPICH与R-PICH的比例根据ACK / NACK反馈而变化。 还公开了可用作非QoS流的紧急负载控制机制的反向链路活动比特（RAB）。

公开(公告)号：US20140334415A1

公开(公告)日：2014-11-13

申请号：US14341107

申请日：2014-07-25

Applicant: QUALCOMM Incorporated

Inventor： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC: H04W72/04

CPC classification number: H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

Abstract: Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal.

Abstract translation: 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，服务基站可以向终端发送消息以触发短期干扰减轻。 作为响应，终端可以发送消息以请求至少一个干扰基站以减少对至少一个资源的干扰。 每个干扰基站可以确定要用于至少一个资源的发射功率电平，并且可以以该发射功率电平发送导频。 终端可以基于从至少一个干扰基站接收的至少一个导频来估计至少一个资源的信道质量。 终端可以向服务基站发送表示估计的信道质量的信息。 服务基站可以向终端发送至少一个资源上的数据传输。

公开(公告)号：US08737360B2

公开(公告)日：2014-05-27

申请号：US13654329

申请日：2012-10-17

Applicant: QUALCOMM Incorporated

Inventor： Mohammad J. Borran ,  Aamod Khandekar

IPC: H04W36/30

CPC classification number: H04W52/08 ,  H04W52/12 ,  H04W52/146 ,  H04W52/18 ,  H04W52/20 ,  H04W52/265 ,  H04W52/40 ,  H04W52/54

Abstract: Techniques for performing power control and handoff are described. In an aspect, power control (PC) is supported with multiple PC modes such as an up-down PC mode and an erasure-based PC mode. One PC mode may be selected for use. Signaling may be sent to indicate the selected PC mode. If the up-down PC mode is selected, then a base station estimates the received signal quality for a terminal and sends PC commands to direct the terminal to adjust its transmit power. If the erasure-based PC mode is selected, then the base station sends erasure indications that indicate whether codewords received from the terminal are erased or non-erased. For both PC modes, the terminal adjusts its transmit power based on the power control feedback (e.g., PC commands and/or erasure indications) to achieve a target level of performance (e.g., a target erasure rate for the codewords). The erasure indications may also be used for handoff.

Abstract translation: 描述用于执行功率控制和切换的技术。 在一个方面，功率控制（PC）由多种PC模式支持，例如升级PC模式和基于擦除的PC模式。 可以选择一种PC模式使用。 可以发送信号以指示所选的PC模式。 如果选择了上下PC模式，则基站估计终端的接收信号质量，并发送PC命令以指示终端调整其发射功率。 如果选择基于擦除的PC模式，则基站发送指示从终端接收到的码字被擦除或不被擦除的擦除指示。 对于两种PC模式，终端基于功率控制反馈（例如，PC命令和/或擦除指示）调整其发射功率，以实现目标性能水平（例如，码字的目标擦除率）。 擦除指示也可用于切换。

公开(公告)号：US20140133467A1

公开(公告)日：2014-05-15

申请号：US14157998

申请日：2014-01-17

Applicant: QUALCOMM Incorporated

Inventor： Alexei Gorokhov ,  Aamod Khandekar

IPC: H04J13/00 ,  H04W72/04

CPC classification number: H04J13/0003 ,  H04B2201/70701 ,  H04J13/00 ,  H04W72/0406

Abstract: In a communication system wherein a CDMA segment at each access point consists of multiple sub-segments a three frame transmission time interval (TTI) with eight retransmissions is utilized for data transmission. The access point not only specifies the interlaces to be utilized for data transmission it also assigns packet start interlaces for particular access terminals. An auxiliary pilot channel R-AuxPICH is transmitted by an access terminal along with CDMA data on reverse link. The ratio of R-AuxPICH to R-PICH is varied based on ACK/NACK feedback. A reverse link activity bit (RAB) which can be used as an emergency load-control mechanism for non-QoS flows is also disclosed.

Abstract translation: 在其中每个接入点处的CDMA分段由多个子分段组成的通信系统中，具有八个重传的三帧传输时间间隔（TTI）用于数据传输。 接入点不仅指定要用于数据传输的交织，而且还为特定接入终端分配分组起始交织。 辅助导频信道R-AuxPICH由接入终端与反向链路上的CDMA数据一起发送。 R-AuxPICH与R-PICH的比例根据ACK / NACK反馈而变化。 还公开了可用作非QoS流的紧急负载控制机制的反向链路活动比特（RAB）。