公开(公告)号：US20190182845A1

公开(公告)日：2019-06-13

申请号：US16190927

申请日：2018-11-14

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Weiliang Zeng ,  Tamer Kadous ,  Yongbin Wei

IPC: H04W72/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A transmitter may identify a contention window for a no-energy-detection protocol for determining a channel availability for a data transmission. After the contention window expires, the transmitter may send a request message to a receiver. The receiver may measure a quality of the request message against a request threshold and transmit a response message if the measured quality exceeds the request threshold. The transmitter may then measure a quality of the response message against a response threshold. If the measured quality exceeds the response threshold, the transmitter may initiate a data transmission with the receiver. If the quality falls below the response threshold or the response message is not received, the transmitter may adjust the contention window and reattempt the no-energy-detection protocol. The contention window may also be adjusted based on an acknowledgement message received after the data transmission.

公开(公告)号：US20180368108A1

公开(公告)日：2018-12-20

申请号：US15997349

申请日：2018-06-04

Applicant: QUALCOMM Incorporated

Inventor： Weiliang Zeng ,  Taesang Yoo ,  Seyed Ali Akbar Fakoorian ,  Joseph Binamira Soriaga

IPC: H04W72/04 ,  H04L1/00

Abstract: Multiple modulation and coding scheme (MCS) tables for new radio (NR) networks is disclosed. Multiple MCS tables are defined with different sets of MCS values selected for improved performance in various transmission conditions. The multiple MCS tables may be known to base stations and user equipments (UEs) in the network. A serving base station may determine a set of transmission characteristics related to a transmission environment of a UE. The base station selects one of the MCS tables of the multiple MCS tables based on the set of transmission characteristics. The selected MCS table includes MCS values that may provide improved performance for the UE considering one or more of the characteristics of the set of transmission characteristics. The base station will then transmit an indication of the selected MCS table to the served UE.

公开(公告)号：US20170026976A1

公开(公告)日：2017-01-26

申请号：US15175966

申请日：2016-06-07

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Jing Sun ,  Durga Prasad Malladi ,  Yongbin Wei ,  Weiliang Zeng ,  Siddhartha Mallik ,  Aleksandar Damnjanovic

IPC: H04W72/08 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04L1/0009 ,  H04L1/0057 ,  H04L67/322 ,  H04W72/0413 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communication using various coding schemes for data transmission are described. A wireless communication system may support multiple coding schemes such as, for example, turbo codes and low density parity check codes. The system may support selection of the coding scheme based on explicit signaling or implicit evaluation of transmission parameters. A transmitting device may select a coding scheme, encode a message using the selected coding scheme, and transmit the encoded message over a wireless connection. The receiving device may receive the encoded message, select the coding scheme, and decode the message using the select coding scheme.

Abstract translation: 描述了使用各种用于数据传输的编码方案的用于无线通信的方法，系统和装置。 无线通信系统可以支持多种编码方案，例如turbo码和低密度奇偶校验码。 该系统可以支持基于显式信令或传输参数的隐含评估来选择编码方案。 发送设备可以选择编码方案，使用所选择的编码方案对消息进行编码，并通过无线连接发送编码的消息。 接收设备可以接收编码消息，选择编码方案，并使用选择编码方案对消息进行解码。