公开(公告)号：WO2022226679A1

公开(公告)日：2022-11-03

申请号：PCT/CN2021/089554

申请日：2021-04-25

Applicant: QUALCOMM INCORPORATED ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  MANOLAKOS, Alexandros ,  XIAO, Kexin ,  ZHENG, Ruiming ,  WANG, Runxin ,  GAAL, Peter ,  ZHANG, Yu ,  MUKKAVILLI, Krishna Kiran

Inventor： ABDELGHAFFAR, Muhammad Sayed Khairy ,  MANOLAKOS, Alexandros ,  XIAO, Kexin ,  ZHENG, Ruiming ,  WANG, Runxin ,  GAAL, Peter ,  ZHANG, Yu ,  MUKKAVILLI, Krishna Kiran

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling indicating a configuration for use by the UE to select one or more of a plurality of resource sets for a bandwidth part (BWP) for the UE, where each of the resource sets comprise reference signal resources that correspond to one or more antenna ports of the UE. The UE may receive, from the base station, an activation message instructing the UE to activate at least one resource set of the plurality of resource sets for reference signal transmission using the BWP. The UE may transmit a reference signal over the activated resource set using the BWP and at least one antenna port of the one or more antenna ports based at least in part on the activation message, the antenna port corresponding to the activated resource set.

公开(公告)号：WO2022160274A1

公开(公告)日：2022-08-04

申请号：PCT/CN2021/074467

申请日：2021-01-29

Applicant: QUALCOMM INCORPORATED ,  ELSHAFIE, Ahmed ,  WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  KWON, Hwan Joon ,  MUKKAVILLI, Krishna Kiran ,  JI, Tingfang

Inventor： ELSHAFIE, Ahmed ,  WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  KWON, Hwan Joon ,  MUKKAVILLI, Krishna Kiran ,  JI, Tingfang

IPC: H04B7/0404 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for a base station using antenna groups configured at a user equipment (UE) for CSI reporting. The base station may transmit an indication of the antenna group that the UE is to use for measuring and reporting CSI. Based on the received indication, the UE may measure a reference signal transmitted by the base station and received at the UE using one or more antennas of the antenna group in accordance with the indication. The UE may transmit, to the base station, a CSI report that is based on the measuring of the reference signal using the one or more antennas of the antenna group.

公开(公告)号：WO2022151379A1

公开(公告)日：2022-07-21

申请号：PCT/CN2021/072232

申请日：2021-01-15

Applicant: QUALCOMM INCORPORATED ,  XIAO, Kexin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  WANG, Runxin ,  MANOLAKOS, Alexandros ,  CHEN, Bo ,  MUKKAVILLI, Krishna Kiran ,  KWON, Hwan Joon ,  TOKGOZ, Yeliz

Inventor： XIAO, Kexin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  WANG, Runxin ,  MANOLAKOS, Alexandros ,  CHEN, Bo ,  MUKKAVILLI, Krishna Kiran ,  KWON, Hwan Joon ,  TOKGOZ, Yeliz

IPC: H04L5/00 ,  H04W72/04

Abstract: Aspects of the disclosure relate to utilizing SRS resources for various types of usages and configuring transmit power on the SRS resources. In an aspect, a user equipment (UE) may determine whether a time gap between a first sounding reference signal (SRS) resource for a first usage and a second SRS resource for a second usage in time is less than a time threshold. Further, the UE may transmit an SRS utilizing one of the first SRS resource or the second SRS resource for both the first usage and the second usage, in response to determining that the time gap is less than the time threshold.

公开(公告)号：WO2022133707A1

公开(公告)日：2022-06-30

申请号：PCT/CN2020/138233

申请日：2020-12-22

Applicant: QUALCOMM INCORPORATED ,  WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu

Inventor： WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu

IPC: H04W72/14

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information including a sounding reference signal (SRS) configuration associated with configured SRS resources. The UE may receive a medium access control (MAC) control element (MAC CE) or downlink control information (DCI) including reconfiguration information associated with the SRS resources. The UE may transmit, based at least in part on the reconfiguration information, SRS information including select SRS resources, selected from among the configured SRS resources, utilizing select SRS ports. Numerous other aspects are described.

公开(公告)号：WO2022099494A1

公开(公告)日：2022-05-19

申请号：PCT/CN2020/128028

申请日：2020-11-11

Applicant: QUALCOMM INCORPORATED ,  SEN, Pinar ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  WANG, Runxin ,  ZHANG, Yu ,  MANOLAKOS, Alexandros

Inventor： SEN, Pinar ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  WANG, Runxin ,  ZHANG, Yu ,  MANOLAKOS, Alexandros

IPC: H04W72/12 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive a medium access control (MAC) control element (MAC CE) indicating a MAC CE configuration associated with a sounding reference signal (SRS) resource. The mobile station may receive downlink control information (DCI) indicating a DCI configuration associated with the SRS resource. The mobile station may selectively transmit SRS information associated with the SRS resource based at least in part on a time of receipt of the MAC CE. Numerous other aspects are provided.

公开(公告)号：WO2022046234A1

公开(公告)日：2022-03-03

申请号：PCT/US2021/035526

申请日：2021-06-02

Applicant: QUALCOMM INCORPORATED

Inventor： WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  MANOLAKOS, Alexandros ,  SEN, Pinar

IPC: H04L5/00

Abstract: A configuration to allow for an SRS resource set trigger list configuration to be updated using MAC-CE. The apparatus transmits, to a UE, an SRS resource set trigger list configuration via RRC signaling. The apparatus transmits, to the UE, an updated trigger list value via MAC-CE to update the SRS resource set trigger list configuration. A trigger state of at least one SRS resource set is updated based on the updated trigger list value. The apparatus receives, from the UE, at least one SRS based on the updated SRS resource set trigger list configuration.

公开(公告)号：WO2021196150A1

公开(公告)日：2021-10-07

申请号：PCT/CN2020/083127

申请日：2020-04-03

Applicant: QUALCOMM INCORPORATED ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  LY, Hung Dinh ,  WANG, Runxin ,  ZHANG, Yu

Inventor： ABDELGHAFFAR, Muhammad Sayed Khairy ,  LY, Hung Dinh ,  WANG, Runxin ,  ZHANG, Yu

IPC: H04L5/00 ,  H04W4/42

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for managing downlink signal reception. In one aspect, a wireless device may receive, from a first transmit receive point (TRP) and a second TRP, a tracking reference signal (TRS) port in a combined signal. The wireless device may receive a first synchronization signal block (SSB) from the first TRP and a second SSB from the second TRP. In some implementations, the wireless device may determine an SSB for the second TRP based on a combined SSB and an SSB associated with the first TRP. The wireless device may determine a large scale channel property for each TRP based on the TRS and the respective SSBs, and may adjust a downlink signal reception from each of the first TRP and the second TRP based on the respective large scale channel properties.

公开(公告)号：WO2021159399A1

公开(公告)日：2021-08-19

申请号：PCT/CN2020/075107

申请日：2020-02-13

Applicant: QUALCOMM INCORPORATED ,  WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  MANOLAKOS, Alexandros ,  DUAN, Weimin

Inventor： WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  MANOLAKOS, Alexandros ,  DUAN, Weimin

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a UE may receive an indication of a set of sounding reference signal (SRS) parameters corresponding to a set of SRS resources for transmitting SRSs, where the set of SRS resources may refer to frequency, or time, or both. In some examples, the SRS parameters may include, among other examples, a frequency allocation, a frequency overlap parameter, a number of allocated symbols, a comb value, a cyclic shift, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof. The UE may determine an SRS configuration for the one or more SRSs based on the set of SRS parameters and transmit the one or more SRSs based on the configuration. In some examples, the SRS configuration includes a configuration for SRS frequency hopping, or SRS repetition, or both.

公开(公告)号：WO2021155586A1

公开(公告)日：2021-08-12

申请号：PCT/CN2020/074521

申请日：2020-02-07

Applicant: QUALCOMM INCORPORATED ,  WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  MANOLAKOS, Alexandros ,  DUAN, Weimin

Inventor： WANG, Runxin ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu ,  MANOLAKOS, Alexandros ,  DUAN, Weimin

IPC: H04L5/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for transmitting sounding reference signal (SRS) resources with frequency hopping. In some implementations, a user equipment (UE) may use different SRS ports, different antenna ports, different numbers and sizes of SRS resources, different periodicities, different offsets, different transmission comb values, and/or different transmission comb offset values for SRS transmissions on different frequency subbands of the frequency hopping pattern to ensure that sounding operations cover all antennas of the UE, cover the entire frequency range of interest, and provide sufficiently dense SRS transmissions from which a base station can determine the best channel for DL transmissions while also using a minimum amount of SRS resources and consuming minimal power in the UE.

公开(公告)号：WO2021072160A1

公开(公告)日：2021-04-15

申请号：PCT/US2020/054935

申请日：2020-10-09

Applicant: QUALCOMM INCORPORATED

Inventor： DUAN, Weimin ,  MANOLAKOS, Alexandros ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  VITTHALADEVUNI, Pavan Kumar ,  MUKKAVILLI, Krishna Kiran ,  WANG, Runxin

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/12

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than (4) receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to (8). As another example, the number of RX antenna ports may be equal to (6). The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.