公开(公告)号：US10742283B2

公开(公告)日：2020-08-11

申请号：US16046840

申请日：2018-07-26

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Yi Huang ,  Renqiu Wang ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo

IPC: H04B7/06 ,  H04B7/0404 ,  H04L5/00 ,  H04W72/04

Abstract: Transmit diversity schemes may be used for sending sequence-based signals over multiple antennas. For example, a user equipment (UE) may determine an uplink sequence to be transmitted to a base station using multiple antennas. The UE may utilize a transmit diversity scheme for the multiple-antenna transmission of the uplink sequence, where the transmit diversity scheme utilized may be based on a number of symbol periods during which the sequence is transmitted. In accordance with the transmit diversity scheme, the UE may use multiple transmit antennas to transmit different sequences from respective antennas. In other examples, the UE may transmit the uplink sequence using different time or frequency resources. Additionally, the UE may use some combination of different transmit diversity schemes for sequence-based signals. In some aspects, the base station may provide an indication of the transmit diversity scheme that the UE is to use for transmitting the uplink sequence.

公开(公告)号：US10651996B2

公开(公告)日：2020-05-12

申请号：US15493922

申请日：2017-04-21

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Hao Xu ,  Wanshi Chen ,  Wei Zeng ,  Peter Gaal

IPC: H04L5/00 ,  H04W48/12 ,  H04W24/02 ,  H04L1/18

Abstract: Methods and apparatuses for demodulation reference signal (DMRS) transmission are described. At a user equipment (UE), a method and apparatus may include receiving, from a network entity, a transmission configuration indication including a DMRS pattern for configuring DMRS transmission on a communication channel. The method and apparatus further includes transmitting or receiving a DMRS to or from the network entity on the channel in accordance with the DMRS pattern. At a network entity, a method and apparatus may include transmitting, to a UE, a transmission configuration indication including a DMRS pattern for configuring DMRS transmission on a communication channel. The method and apparatus further includes transmitting or receiving a DMRS to or from the UE on the channel in accordance with the DMRS pattern.

公开(公告)号：US20200092828A1

公开(公告)日：2020-03-19

申请号：US16691406

申请日：2019-11-21

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Yi Huang ,  Peter Gaal ,  Xiao Feng Wang ,  Tao Luo ,  Hao Xu

IPC: H04W52/32 ,  H04W52/42 ,  H04W52/48 ,  H04W52/24 ,  H04W52/36 ,  H04W52/14 ,  H04W52/38 ,  H04W52/26

Abstract: Methods, systems, and devices for power control in New Radio (NR) systems are described. In one example, a user equipment (UE) may determine a transmit power for a control channel based on an effective code rate of control information to be transmitted in the control channel. In another example, the UE may be configured to use a different transmit power for repeated transmissions of control information in a control channel. In yet another example, the UE may be configured to determine a transmit power for a transmission in a time interval or scale a transmission in a time interval based on a priority of the transmission relative to other transmissions scheduled in the time interval. In yet another example, the UE may be configured to determine respective transmit powers for uplink transmissions multiplexed differently using different open-loop parameters.

公开(公告)号：US10587385B2

公开(公告)日：2020-03-10

申请号：US15980571

申请日：2018-05-15

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Xiaoxia Zhang ,  Renqiu Wang ,  Hao Xu ,  Peter Gaal ,  Seyong Park ,  Sony Akkarakaran

IPC: H04L5/00 ,  H04L1/16 ,  H04L27/26 ,  H04W72/04

Abstract: Techniques described herein assist with indicating whether ACK/NACK signaling is present in an uplink transmission, thereby enhancing performance by permitting use of rate matching while reducing decoding errors. For example, a user equipment may determine whether ACK/NACK signaling is to be included in an uplink transmission in a portion of uplink resources allocated for a data channel, may generate a reference signal that indicates whether the ACK/NACK signaling is present in the uplink transmission, and may transmit the reference signal.

公开(公告)号：US20200053801A1

公开(公告)日：2020-02-13

申请号：US16534180

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Yi Huang ,  Linhai He ,  Chih-Ping Li ,  Peter Gaal ,  Wanshi Chen ,  Jing Jiang ,  Xiao Feng Wang ,  Tingfang Ji

IPC: H04W74/08 ,  H04W72/10 ,  H04L1/18 ,  H04W52/36 ,  H04W72/08 ,  H04W72/04

Abstract: Techniques are described herein for collision handling in uplink transmissions. A user equipment (UE) may have more information to transmit during an uplink transmission than the allocated resources can handle. The UE may identify that an uplink transmission includes a plurality of different channels. The UE may exclude service types or scale the transmit power of service types based on performing a prioritization of the different channels in the uplink transmission. In some cases, the UE may prioritize ultra-reliable low-latency communications (URLLC) service types over enhanced mobile broadband (eMBB) service types. In some cases, the content of the URLLC service types and the content of the eMBB service types may be considered when prioritizing. The UE may be capable of configuring different sets of priority rules based on reliability thresholds and latency thresholds associated with the service types.

公开(公告)号：US20200053752A1

公开(公告)日：2020-02-13

申请号：US16535927

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Xiaoxia Zhang ,  Alexandros Manolakos

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, multiple timing advances (TAs) may be configured for non-coherent joint transmission (NCJT) with respective transmit receive points (TRPs). For example, a NCJT mode may have multiple TAs semi-statically configured for the UE to follow for each TRP. In some cases, a TA index corresponding to a TA for a TRP may be added as a field to a sounding reference signal (SRS) resource definition (e.g., SRS resource configuration). Additionally or alternatively, the TA index may be determined from an SRS index transmitted by the TRP, where the TA index corresponds to a TA for uplink information in a physical uplink shared channel. Additionally or alternatively, the TA index may be included as a field in a physical uplink control channel (PUCCH) definition to indicate a TA for a corresponding PUCCH that the UE transmits to the TRP.

公开(公告)号：US20200053748A1

公开(公告)日：2020-02-13

申请号：US16534188

申请日：2019-08-07

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Joseph Binamira Soriaga ,  Yi Huang

IPC: H04W72/12 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit or receive transmissions that are out of order in relation to received preceding downlink transmissions (or resource grants), where the transmissions may include different priorities or service types. For example, a UE may transmit feedback for received downlink data including different priorities or service types, where the feedback is sent in a different order than the order in which the data was received. Additionally or alternatively, the UE may send or receive transmissions for different priorities or service types in a different order than an order in which a respective grant was received for each transmission. In addition to transmissions including different priorities or service types being scheduled out-of-order, transmissions including the same priorities or service types may be scheduled based on the order in which preceding downlink transmissions (or resource grants) were received.

公开(公告)号：US10542558B2

公开(公告)日：2020-01-21

申请号：US15705175

申请日：2017-09-14

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Hao Xu ,  Wanshi Chen ,  Yi Huang ,  Peter Gaal ,  Tingfang Ji

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

Abstract: Wireless communication devices, such as a scheduled entity, are adapted to facilitate uplink transmissions on multiple physical uplink control channels (PUCCHs) of a regular burst period. According to one example, a scheduled entity may obtain a payload for an uplink transmission on a PUCCH. The scheduled entity may subsequently send the uplink transmission utilizing two or more physical uplink control channels (PUCCH) of a regular burst period, where each PUCCH is associated with a different frequency band of the regular burst period. According to one example, a scheduling entity may receive an uplink transmission, where the uplink transmission utilizes a first PUCCH of a regular burst period, and at least a second PUCCH of the regular burst period, each of the first and second PUCCHs being associated with respectively different frequency bands of the regular burst period. Other aspects, embodiments, and features are also included.

公开(公告)号：US20200014569A1

公开(公告)日：2020-01-09

申请号：US16456340

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Xiao Feng Wang ,  Peter Gaal ,  Wanshi Chen

IPC: H04L27/144 ,  H04L27/26 ,  H04J13/00 ,  H04L5/00 ,  H04W76/27 ,  H04W8/24 ,  H04W48/08

Abstract: Methods, systems, and devices for wireless communications are described in which a base station may provide an indication of a reference signal to be used in demodulation of a π/2 BPSK modulation scheme for communications between a UE and the base station. The base station may indicate whether a first type of reference signal or a second type of reference signal is to be transmitted. The second type of reference signal may be a π/2 BPSK DMRS that has a reference signal sequence that has a lower PAPR. The second type of reference signal sequence may be a power deboosted version of the first reference signal sequence. The indication from the base station of the type of reference signal may be provided via RRC signaling, such as a cell-specific RRC transmission or a UE-specific RRC transmission.

公开(公告)号：US10469224B2

公开(公告)日：2019-11-05

申请号：US15689476

申请日：2017-08-29

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wei Zeng ,  Wanshi Chen ,  Hao Xu ,  Tingfang Ji

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0413 ,  H04W88/02 ,  H04W88/08 ,  H04B7/0404

Abstract: Both precoded sounding reference signals (SRS) and unprecoded SRS are transmitted from a UE to an eNB. The UE may transmit both in the same subframe using either TDM or FDM. Or the UE may transmit each in different subframes from each other. The eNB uses some combination of the precoded SRS and the unprecoded SRS in scheduling resources for the UE. The eNB may also provide instruction to the UE for PUSCH precoding for data transmission. The eNB may signal the UE to use the same precoding as for the precoded SRS. The eNB may instead signal the UE to use different precoding by including the precoding information or delta information between the precoding used for the precoded SRS and the selected precoding for the PUSCH data.