公开(公告)号：WO2022236207A1

公开(公告)日：2022-11-10

申请号：PCT/US2022/071361

申请日：2022-03-25

Applicant: QUALCOMM INCORPORATED

Inventor： BAI, Tianyang ,  ZHANG, Xiaoxia ,  FAN, Zhifei ,  LUO, Tao ,  ZEWAIL, Ahmed Abdelaziz Ibrahim Abdelaziz ,  SUN, Jing ,  CEZANNE, Juergen ,  LI, Junyi

IPC: H04L5/00

Abstract: Aspects described herein relate to transmitting or receiving a demodulation reference signal (DMRS) for an antenna port over a set of multiple DMRS frequency tones in a symbol of a slot based on a DMRS configuration, and transmitting or receiving a phase tracking reference signal (PTRS) for the antenna port over a cluster of multiple PTRS frequency tones in the symbol or a different symbol of the slot, wherein the cluster of multiple PTRS frequency tones are adjacent to one another in frequency, and wherein at least one PTRS frequency tone in the cluster of multiple PTRS frequency tones is a non-zero power (NZP) PTRS frequency tone that overlaps, in frequency, at least one DMRS frequency tone in the set of DMRS frequency tones.

公开(公告)号：WO2021257196A1

公开(公告)日：2021-12-23

申请号：PCT/US2021/030870

申请日：2021-05-05

Applicant: QUALCOMM INCORPORATED

Inventor： RAGHAVAN, Vasanthan ,  LI, Junyi ,  CEZANNE, Juergen

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0051 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. For example, a first wireless device may transmit, via a first beam, a first set of data and a first reference signal associated with the data on a data channel for beam refinement. The first wireless device may further transmit, via a second beam, a second set of data and a second reference signal on the data channel for beam refinement. A second device may receive the first set of data and first reference signal in addition to receiving the second set of data and second reference signal. The second device may transmit, to the first device, beam refinement feedback information for the first beam and the second beam based on receiving the first reference signal and the second reference signal on the data channel. Thus, the first device may refine beams based on a data transmission over a data channel.

公开(公告)号：WO2021126376A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/058012

申请日：2020-10-29

Applicant: QUALCOMM INCORPORATED

Inventor： RAGHAVAN, Vasanthan ,  LI, Junyi ,  GULATI, Kapil ,  CEZANNE, Juergen

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/028 ,  H04B7/0469 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0665

Abstract: Methods, systems, and devices for wireless communications are described for implementation of higher rank transmissions (e.g., higher rank line of sight (LOS) schemes) over a given beam direction associated with a selected transmission configuration indicator (TCI) state. According to some aspects, expanded antenna arrays, spatial separation (e.g., distance) between antenna elements, lower carrier frequencies (e.g., associated with frequency range 4 (FR4) systems), etc. may be leveraged to communicate uncorrelated signals (e.g., independent streams across spatial layers) for higher rank transmissions using a given TCI state (e.g., using a single beam direction). Various aspects of the described techniques may provide for higher rank directional communications by a user equipment (UE) (e.g., via uncorrelation in a single UE), higher rank directional communications by select UEs (e.g., via uncorrelation across specific UEs), base station antenna selection for uncorrelation at multiple served UEs, etc.

公开(公告)号：WO2021025867A1

公开(公告)日：2021-02-11

申请号：PCT/US2020/043191

申请日：2020-07-23

Applicant: QUALCOMM INCORPORATED

Inventor： BAI, Tianyang ,  CEZANNE, Juergen ,  LUO, Tao ,  LI, Junyi

IPC: H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, feedback information that indicates delay spread information. The UE may receive control signaling that indicates to use a first waveform of a set of different waveforms for a first data transmission via a first beam based on the feedback information. The UE may then communicate the first data transmission via the first beam using the first waveform.

公开(公告)号：WO2020214265A1

公开(公告)日：2020-10-22

申请号：PCT/US2020/020818

申请日：2020-03-03

Applicant: QUALCOMM INCORPORATED

Inventor： LI, Junyi ,  CEZANNE, Juergen ,  RAGHAVAN, Vasanthan

IPC: H04W72/12 ,  H04W16/28 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques enable a first wireless device (e.g., an integrated access and backhaul (IAB) node in an IAB system) or a network entity (e.g., a centralized unit (CU) in the IAB system) to select a set of wireless devices for communication. The first wireless device, the CU, or both may select the set of wireless devices for communication based on a pathloss mode of the first wireless device, whether an angular separation between a group of nodes (e.g., one or more of the set of wireless devices) is less than an angular separation threshold, or both. The first wireless device may communicate with the set of wireless devices with one or more communications beams. For example, the device may communicate with multiple wireless devices using a single communication beam if the angular separation between the multiple devices is relatively low.

公开(公告)号：WO2020214262A1

公开(公告)日：2020-10-22

申请号：PCT/US2020/020795

申请日：2020-03-03

Applicant: QUALCOMM INCORPORATED

Inventor： LI, Junyi ,  CEZANNE, Juergen ,  RAGHAVAN, Vasanthan

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/00 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described that provide for the management of different operation modes in wireless systems. For example, wireless device(s) may operate in a high pathloss operation mode or a normal pathloss operation mode based on the pathloss experienced between the transmitting and receiving devices. In some cases, a first wireless device may transmit a message to a second wireless device to configure a bandwidth part (BWP) for high pathloss mode communications. The message may be transmitted via control signaling and after receipt of the message, the second wireless device may enter a high pathloss mode for communications with the first wireless device (e.g., after a given time duration). Some parameters may be configurable (e.g., transmission duration, coding scheme) between high pathloss mode and normal pathloss mode, while other parameters may remain the same (e.g., processing time, switching time).

公开(公告)号：WO2020163086A1

公开(公告)日：2020-08-13

申请号：PCT/US2020/014615

申请日：2020-01-22

Applicant: QUALCOMM INCORPORATED

Inventor： BAI, Tianyang ,  CEZANNE, Juergen ,  RYU, Jung Ho ,  VENUGOPAL, Kiran ,  WANG, Hua ,  RAGHAVAN, Vasanthan ,  RAVID, Kobi ,  LUO, Tao ,  LI, Junyi

IPC: H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station such as a eNodeB (eNB), a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB)), an indication of a value of a channel quality parameter of a wireless link including a first beam pair between the UE and the base station. The UE may also transmit, to the base station, side information different from and in addition to the indication of the value of the channel quality information, and receive, in response to the transmitted indication of the value and the transmitted side information, an indication of resources for the UE to use to communicate on the wireless link.

公开(公告)号：WO2020033076A1

公开(公告)日：2020-02-13

申请号：PCT/US2019/039980

申请日：2019-06-28

Applicant: QUALCOMM INCORPORATED

Inventor： RAGHAVAN, Vasanthan ,  CEZANNE, Juergen ,  ABEDINI, Navid ,  SADIQ, Bilal ,  LI, Junyi

IPC: H04B17/12 ,  H04B7/06 ,  H04B7/08 ,  H04B17/19 ,  H04W24/10 ,  H04B17/18 ,  H04B17/14

Abstract: A wireless device, such as a base station, may be configured to determine a set of silent symbols for beam calibration measurements by a User Equipment (UE) for full duplex communication. The wireless device may transmit, to the UE, an indication of the set of silent symbols for the beam calibration measurements by the UE. The wireless device may refrain from transmitting during the set of silent symbols. A wireless device, such as a UE, may receive an indication of a set of silent symbols for a beam calibration measurement by the UE for full duplex communication with a base station. The wireless device may perform beam calibration measurements for beam candidates.

公开(公告)号：WO2020014241A1

公开(公告)日：2020-01-16

申请号：PCT/US2019/041024

申请日：2019-07-09

Applicant: QUALCOMM INCORPORATED

Inventor： RAGHAVAN, Vasanthan ,  CEZANNE, Juergen ,  LI, Junyi ,  NAM, Wooseok ,  LUO, Tao

IPC: H04W52/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. One method may include a UE determining a priority of a UE quality of service over EE thermal efficiency constraints, generating a priority indicator based at least in part on the determined EE quality of service priority, and transmitting to a base station via physical layer signaling, the priority indicator. Another method may include a EE determining a priority of a EE quality of service over EE energy constraints, generating a priority indicator based at least in part on the determined EE quality of service priority, and transmitting to a base station via physical layer signaling, the priority indicator. Yet another method may include a base station receiving a EE priority indicator specifying a EE quality of service priority over thermal efficiency constraints and temporarily prioritizing the EE QoS over EE thermal efficiency constraints based on the received priority indicator.

公开(公告)号：WO2020009767A1

公开(公告)日：2020-01-09

申请号：PCT/US2019/035220

申请日：2019-06-03

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  LUO, Tao ,  NAM, Wooseok ,  LI, Junyi ,  CEZANNE, Juergen

IPC: H04B7/06 ,  H04B7/08 ,  H04W76/28 ,  H04W52/02

Abstract: Techniques are described herein for periodically transmitting a first set of signals (e.g., reference signals) during an on-period of a discontinuous reception (DRX) cycle rather than during an off-period of the DRX cycle. Such techniques may enable a user equipment (UE) operating in a DRX mode to conserve additional power during the DRX cycle. A periodicity for transmitting the first set of signals during the on-period may be determined. The periodicity may indicate that every one-in-N DRX cycles, the first set of signals are to be transmitted during the on-period. During other DRX cycles, the first set of signals may be transmitted during the off-period. When the first set of signals are transmitted during the on-period, the UE may refrain from activating certain components during the off-period, thereby conserving power.