公开(公告)号：US20170331647A1

公开(公告)日：2017-11-16

申请号：US15395814

申请日：2016-12-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Jing Jiang ,  Seyong Park ,  Wei Zeng ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04L25/03 ,  H04L27/26 ,  H04B7/26

CPC classification number: H04L25/03006 ,  H04B7/2621 ,  H04L27/2601 ,  H04L27/2634

Abstract: Techniques for processing of symbols (e.g., orthogonal frequency division multiplexing (OFDM) or single carrier-frequency division multiple access (SC-FDMA) symbols) provide enhanced out-of-band (OOB) suppression of the symbols and also provide reduced inter-symbol interference (ISI) between a symbol and a subsequent symbol. Multiple frequency tones of a symbol may be divided into two or more subsets of tones. For example, subsets of tones associated with a head portion or a tail portion of an OFDM symbol may be processed with a relatively long weighted overlap-add (WOLA) weighting length or filtering length, and a subset of tones associated with a center portion of the OFDM symbol may be processed with a relatively short WOLA weighting length or filtering length. Such heterogeneous processing of tones within a symbol may provide enhanced inter-channel interference (ICI) and improved OOB suppression and also provide reduced ISI for the center tones of the symbol.

公开(公告)号：US09814058B2

公开(公告)日：2017-11-07

申请号：US15011304

申请日：2016-01-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04W4/00 ,  H04W72/12 ,  H04L1/16 ,  H04L5/14 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/1205 ,  H04L1/00 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/1469

Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.

公开(公告)号：US20170318563A1

公开(公告)日：2017-11-02

申请号：US15291666

申请日：2016-10-12

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Tao Luo ,  Peter Pui Lok Ang ,  Jing Jiang

IPC: H04W72/04 ,  H04L5/00

Abstract: Aspects of the present disclosure provide various flexible search space designs that can handle UEs with various capabilities and limitations. In some aspects of the disclosure, the downlink bandwidth may be divided into several self-contained sub-bands. Each sub-band may include one or more OFDM subcarriers or tones, and each UE may be configured to monitor one or more of the sub-bands for its downlink control channel. The sub-band is self-contained in such a way that each sub-band includes CCEs that are mapped to resource elements contained in the same sub-band. In some aspects of the disclosure, different sub-bands can be configured with the different transmission modes and pilot densities. The transmission mode, pilot density, and layer-ID may be determined as a function of each UE's search space.

公开(公告)号：US20170222696A1

公开(公告)日：2017-08-03

申请号：US15182433

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Wei Zeng ,  Jing Jiang

IPC: H04B7/04 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B7/0417 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0055 ,  H04L25/0224 ,  H04W28/0236 ,  H04W72/042

Abstract: Techniques for utilizing resources in a downlink (DL) common burst are described herein. In one aspect, a channel state information reference signal (CSI-RS) may be included in the DL common burst for channel estimation. In another aspect, a demodulation reference signal (DM-RS) and DL data may be included in the DL common burst for low latency data transmission. In yet another aspect, a measurement reference signal (M-RS) may be included in the DL common burst to assist handover decisions. The techniques described herein may be used for various wireless communications systems.

公开(公告)号：US20170214489A1

公开(公告)日：2017-07-27

申请号：US15228291

申请日：2016-08-04

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Yu-Ting Yu ,  Feilu Liu ,  Tingfang Ji ,  Gavin Bernard Horn

IPC: H04L1/00 ,  H04W72/04

Abstract: A method, an apparatus, and a processor-readable storage medium for wireless communication are provided. A transmitter transmits data packets to a receiver, encodes the data packets to generate parity packets, stores the parity packets in a retransmission buffer, receives information from the receiver indicating that a data packet was not correctly decoded, and transmits to the receiver the parity packets stored in the retransmission buffer for recovering the data packet not correctly decoded without retransmitting the data packet not correctly decoded. The transmitter may further retransmit to the receiver the parity packets. The transmitted data packets may be encoded at a medium access control (MAC) layer of the transmitter. The retransmission buffer may be located at a radio link control (RLC) layer or a packet data convergence protocol (PDCP) layer of the transmitter. A reordering buffer at the receiver may be located at the RLC layer or PDCP layer.

公开(公告)号：US20170171882A1

公开(公告)日：2017-06-15

申请号：US15186998

申请日：2016-06-20

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Jing Jiang ,  Tingfang Ji ,  Chih Ping Li ,  Gavin Bernard Horn ,  Keiichi Kubota

IPC: H04W72/14 ,  H04W52/02 ,  H04W72/00 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W72/14 ,  H04W52/0216 ,  H04W72/005 ,  H04W72/042 ,  H04W72/048 ,  H04W72/1268 ,  H04W72/1289 ,  H04W74/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/26

Abstract: A method, an apparatus, and a processor-readable storage medium for wireless communication are provided. In an aspect, the apparatus is a subordinate entity that receives an indication of a resource allocated for an uplink transmission. The subordinate entity also receives a condition associated with the resource. The subordinate entity evaluates whether the condition is satisfied and determines whether to transmit a packet using the resource based on the condition being satisfied. In another aspect, the apparatus is a scheduling entity that generates an indication of a resource allocated for an uplink transmission. The resource is associated with a condition that limits access to the resource. The scheduling entity transmits the indication and the condition to a subordinate entity and receives a packet from the subordinate entity via the resource based on the condition being satisfied.

公开(公告)号：US20170171830A1

公开(公告)日：2017-06-15

申请号：US15445616

申请日：2017-02-28

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Gavin Bernard Horn ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Jing Jiang ,  Kambiz Azarian Yazdi ,  Peter Pui Lok Ang ,  Peter Gaal ,  Krishna Kiran Mukkavilli ,  Alexei Yurievitch Gorokhov

IPC: H04W56/00 ,  H04W4/06 ,  H04W76/04 ,  H04W8/00

CPC classification number: H04W56/0015 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0058 ,  H04W4/06 ,  H04W8/005 ,  H04W48/14 ,  H04W56/00 ,  H04W72/04 ,  H04W76/20 ,  H04W76/27 ,  H04W76/28

Abstract: Methods, systems, and devices are described for wireless communication. In one method, a method of wireless communication at a user equipment (UE) includes receiving a synchronization signal. The synchronization signal may be common to a plurality of cells within a network. The method further includes acquiring a timing of the network based on the synchronization signal, and transmitting a pilot signal in response to acquiring the timing of the network. The pilot signal may identify the UE and be concurrently receivable by the plurality of cells within the network. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US20170171829A1

公开(公告)日：2017-06-15

申请号：US15445572

申请日：2017-02-28

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Gavin Bernard Horn ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Jing Jiang ,  Kambiz Azarian Yazdi ,  Peter Pui Lok Ang ,  Peter Gaal ,  Krishna Kiran Mukkavilli ,  Alexei Yurievitch Gorokhov

IPC: H04W56/00 ,  H04W48/14 ,  H04L5/00 ,  H04W8/00 ,  H04W4/06

CPC classification number: H04W56/0015 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0058 ,  H04W4/06 ,  H04W8/005 ,  H04W48/14 ,  H04W56/00 ,  H04W72/04 ,  H04W76/20 ,  H04W76/27 ,  H04W76/28

Abstract: Methods, systems, and devices are described for wireless communication. In one method, a method of wireless communication at a user equipment (UE) includes receiving a synchronization signal. The synchronization signal may be common to a plurality of cells within a network. The method further includes acquiring a timing of the network based on the synchronization signal, and transmitting a pilot signal in response to acquiring the timing of the network. The pilot signal may identify the UE and be concurrently receivable by the plurality of cells within the network. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US20160338081A1

公开(公告)日：2016-11-17

申请号：US15011304

申请日：2016-01-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04W72/12 ,  H04L5/14 ,  H04L1/16

CPC classification number: H04W72/1205 ,  H04L1/00 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/1469

Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.

Abstract translation: 在本公开的一方面，提供了一种方法，计算机程序产品和装置。 该方法可以由调度实体执行。 调度实体在子帧的控制部分发送控制信息，对应于子帧内的数据信息的控制信息，在子帧的数据部分中发送数据信息，在导频中从下属实体集合接收导频信号 并且在子帧的ACK部分中从下属实体集合接收ACK / NACK信号。 ACK部分在子帧的导频部分之后。 ACK / NACK信号包括对应于数据信息的确认信息。 控制部分，数据部分，导频部分和ACK部分被包含在同一子帧中。

公开(公告)号：US20160285589A1

公开(公告)日：2016-09-29

申请号：US15067914

申请日：2016-03-11

Applicant: QUALCOMM Incorporated

Inventor： Krishna Kiran Mukkavilli ,  Jing Jiang ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Kambiz Azarian Yazdi ,  Santosh Paul Abraham ,  John Edward Smee

IPC: H04L1/00 ,  H04L1/18

Abstract: Various features pertain to mitigating interference on downlink/uplink channels caused by bursty traffic transmissions. A transmitting node encodes data into transport blocks, each including code blocks in which the data is encoded. The transport blocks are then wirelessly transmitted over a channel specific to a receiving node, where the code blocks of the transport blocks are transmitted without redundant parity code blocks or with a desired amount of redundant parity code blocks. The transmitting node then receives an indication from the receiving node of a number of failed data code blocks. The transmitting node generates an error correction code sufficient to recover all of the failed code blocks and transmits the error correction code within a new transport block along with new data. The receiving node receives the new transport block including the error correction code and then recovers the failed code blocks from the error correction code via erasure decoding, a combination of erasure decoding and error decoding, and/or other suitable techniques at the code block level.

Abstract translation: 各种特征涉及减轻由突发业务传输引起的对下行链路/上行链路信道的干扰。 发送节点将数据编码成传输块，每个传输块包括编码数据的代码块。 然后，传输块通过专用于接收节点的信道进行无线传输，其中传输块的代码块被传送而没有冗余奇偶校验码块或具有期望量的冗余奇偶码块。 然后，发送节点从接收节点接收多个失败的数据代码块的指示。 发送节点产生足以恢复所有失败代码块的纠错码，并将新的传输块内的纠错码与新数据一起发送。 接收节点接收包括纠错码的新的传输块，然后通过擦除解码，擦除解码和错误解码的组合，和/或代码块级别的其他合适的技术，从错误校正码中恢复失败的代码块。