公开(公告)号：ZA202002837B

公开(公告)日：2023-04-26

申请号：ZA202002837

申请日：2020-05-15

Applicant: QUALCOMM INC

Inventor： SUBRAMANIAN SUNDAR ,  WANG XIAO FENG ,  CEZANNE JUERGEN ,  SADIQ BILAL ,  ISLAM MUHAMMAD NAZMUL ,  LI JUNYI

Abstract: Methods, systems, and devices for wireless communications are described that provide for signaling and switching of beam pair links (BPLs) for directional transmission beams between a base station and a user equipment (UE). A threshold value may be determined, which corresponds to an amount of time for a UE to receive and decode control information, and apply a different BPL than a current BPL that that is in use. The UE may maintain a BPL for data, which is used during data transmission time intervals (TTIs) until an indication is received to change the BPL for data. The UE and the base station may determine to change between BPLs based at least in part on the threshold value and a scheduling offset between a control channel transmission that allocates resources for a data TTI and a start of the data TTI.

公开(公告)号：AU2022224854A1

公开(公告)日：2022-09-29

申请号：AU2022224854

申请日：2022-09-02

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LI JUNYI ,  ABEDINI NAVID ,  SADIQ BILAL ,  SUBRAMANIAN SUNDAR

IPC: H04L5/00 ,  H04B7/06

Abstract: There is a need for a beam tracking technique that reduces the time needed to perform a beamforming procedure and that reduces beam overhead. The apparatus may determine a mapping between a first beam associated with a first type of channel and a second beam associated with a second type of channel. In an aspect, the first type of channel may be different than the second type of channel. The apparatus may receive the first beam associated with the first type of channel and the second beam associated with the second type of channel. In an aspect, the first beam and the second beam may be received from a second device.

公开(公告)号：ES2901209T3

公开(公告)日：2022-03-21

申请号：ES17755615

申请日：2017-08-11

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  SUBRAMANIAN SUNDAR ,  LI JUNYI ,  ABEDINI NAVID ,  SADIQ BILAL

IPC: H04B7/08 ,  H04B7/06 ,  H04B7/26 ,  H04L5/00 ,  H04W56/00 ,  H04W72/04 ,  H04W74/08

Abstract: Un método para una comunicación inalámbrica en un equipo de usuario, UE, (115) que comprende: recibir (210; 1605; 1705) una señal de enlace descendente, DL, desde una estación (105) base en una pluralidad de haces (305) de DL, en donde la pluralidad de haces de DL forma al menos dos subconjuntos de haces de DL, cada subconjunto de haces de DL que comprende al menos dos haces de DL, en donde cada haz de DL está asociado con una dirección de haz diferente y los subconjuntos de haces de DL son, cada uno, transmitidos en un símbolo respectivo de una subtrama de la señal de DL; identificar (215; 1610; 1710) un haz de DL seleccionado de la pluralidad de haces (305) de DL para comunicaciones desde la estación (105) base al UE (115); seleccionar (220) un recurso de frecuencia para una transmisión de un mensaje de petición de planificación, el recurso de frecuencia que se selecciona basándose al menos en parte en el símbolo de la subtrama de la señal de DL del haz de DL seleccionado; y transmitir (225; 1615; 1715) el mensaje de petición de planificación a la estación (105) base utilizando al menos el recurso de frecuencia seleccionado basándose al menos en parte en el símbolo de la subtrama de la señal de DL del haz de DL seleccionado; y recibir (225) uno o más mensajes posteriores en el UE utilizando el haz de DL seleccionado.

公开(公告)号：AU2021257929A1

公开(公告)日：2021-11-18

申请号：AU2021257929

申请日：2021-10-26

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  ABEDINI NAVID ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  CEZANNE JUERGEN ,  SAMPATH ASHWIN ,  GOROKHOV ALEXEI YURIEVITCH ,  LI JUNYI ,  SADIQ BILAL

IPC: H04B7/26 ,  H04W56/00

Abstract: Methods and apparatus for wireless communication are disclosed. In one embodiment, a method of wireless communication at a user equipment (UE) comprises receiving a plurality of synchronization signals, the plurality of synchronization signals including a plurality of first synchronization signals of different types and a plurality of second synchronization signals of different types. Receiving the plurality of synchronization signals comprises receiving a first transmission by receiving a first group of the plurality of synchronization signals and receiving one or more repeat transmissions of the first transmission. Each of the one or more repeat transmissions of the first transmission includes a repetition of the first transmission. The first transmission and the one or more repeat transmissions of the first transmission are received within a first synchronization subframe. The plurality of synchronization signals are demultiplexed by performing time-division demultiplexing of at least one of the plurality of first synchronization signals and at least one of the plurality of second synchronization signals.

公开(公告)号：AU2017245148B2

公开(公告)日：2021-11-11

申请号：AU2017245148

申请日：2017-03-29

Applicant: QUALCOMM INC

Inventor： CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL ,  SAMPATH ASHWIN ,  LI JUNYI

IPC: H04B7/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a subframe that includes physical broadcast channel (PBCH) signals interspersed within beam reference signals, where the subframe may be a synchronization subframe including one or more synchronization signals. In some cases, the beam reference signals from different antenna ports may be code division multiplexed or frequency division multiplexed over multiple frequency tones. A user equipment (UE) may use the beam reference signals to generate channel estimates for the PBCH signals. In some cases, orthogonal cover codes for code division multiplexed signals may be selected to facilitate generation of channel estimates for PBCH signals transmitted using nearby frequency tones.

公开(公告)号：ES2863406T3

公开(公告)日：2021-10-11

申请号：ES17716360

申请日：2017-03-27

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  SADIQ BILAL ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/08

Abstract: Un procedimiento (1200) de comunicación inalámbrica por un equipo de usuario, UE, que comprende: recibir (1202), desde una estación base, una pluralidad de señales a través de una pluralidad de haces transmitidos por la estación base, correspondiendo cada uno de la pluralidad de haces a un puerto de antena respectivo de una pluralidad de puertos de antena de la estación base; realizar (1206) una estimación de canal para cada haz de la pluralidad de haces de la pluralidad de puertos de antena en base a la pluralidad de señales; seleccionar (1212) uno o más precodificadores de enlace ascendente candidatos en base a la estimación de canal, siendo el uno o más precodificadores de enlace ascendente candidatos para su uso en una planificación de un canal físico compartido de enlace ascendente, PUSCH; y transmitir (1216), a la estación base, una señal de retroalimentación que incluye información sobre uno o más haces seleccionados de la pluralidad de haces, incluyendo además la señal de retroalimentación información sobre el uno o más precodificadores de enlace ascendente candidatos seleccionados.

公开(公告)号：AU2017315683B2

公开(公告)日：2021-09-23

申请号：AU2017315683

申请日：2017-08-23

Applicant: QUALCOMM INC

Inventor： ABEDINI NAVID ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL ,  SAMPATH ASHWIN ,  CEZANNE JUERGEN ,  LI JUNYI ,  MUKKAVILLI KRISHNA KIRAN ,  MALLADI DURGA PRASAD ,  KOYMEN OZGE ,  MAHARSHI ATUL

IPC: H04L5/00

Abstract: In wireless communication systems that support 5G or NR protocols, subframes used for communication may have different numerology options. Numerology options may refer to the characteristics of the subframe such as a tone spacing within each symbol of the subframe, a symbol duration for each symbol of the subframe, a number of symbols in the subframe, etc. A subframe may include a control channel (e.g., the PDCCH) and a data channel (e.g., the PDSCH). In an aspect, the control channel and the data channel within the subframe may have different numerologies. As such, a need exists to signal the numerology of the subframe to users and to determine whether and how to multiplex the control channel and the data channel into the subframe.

公开(公告)号：AU2017273605B2

公开(公告)日：2021-08-05

申请号：AU2017273605

申请日：2017-05-31

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  ABEDINI NAVID ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  CEZANNE JUERGEN ,  SAMPATH ASHWIN ,  GOROKHOV ALEXEI YURIEVITCH ,  LI JUNYI ,  SADIQ BILAL

IPC: H04B7/26

Abstract: The apparatus may be a base station. The apparatus processes a first group of synchronization signals. The apparatus processes a second group of synchronization signals. The apparatus performs a first transmission by transmitting the processed first group of the synchronization signals in a first synchronization subframe. The apparatus performs a second transmission by transmitting the processed second group of the synchronization signals in a second synchronization subframe.

公开(公告)号：AU2017273555B2

公开(公告)日：2021-07-29

申请号：AU2017273555

申请日：2017-05-31

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  ABEDINI NAVID ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  CEZANNE JUERGEN ,  SAMPATH ASHWIN ,  GOROKHOV ALEXEI YURIEVITCH ,  LI JUNYI ,  SADIQ BILAL

IPC: H04B7/26 ,  H04W56/00

Abstract: The apparatus may be a base station. The apparatus processes a plurality of synchronization signals by performing time-division multiplexing (TDM) of at least one of a plurality of first synchronization signals of different types and at least one of the plurality of second synchronization signals of different types, the plurality of synchronization signals including the plurality of first synchronization signals and the plurality of second synchronization signals. The apparatus transmits the processed synchronization signals to a user equipment (UE).

公开(公告)号：AU2017249058B2

公开(公告)日：2021-07-08

申请号：AU2017249058

申请日：2017-03-31

Applicant: QUALCOMM INC

Inventor： SUBRAMANIAN SUNDAR ,  SAMPATH ASHWIN ,  SADIQ BILAL ,  LI JUNYI ,  ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  CEZANNE JUERGEN

IPC: H04B7/0417 ,  H04B7/06

Abstract: A first apparatus may communicate with a user equipment through a first active beam. The first apparatus may determine that beam tracking is to be performed with the UE, including identifying a new beam for communication between the UE and the apparatus. The first apparatus may perform beam tracking with the UE based on the determination that beam tracking is to be performed. The first apparatus may communicate with the UE through a second active beam based on the beam tracking.