BEAM REFERENCE SIGNAL BASED NARROWBAND CHANNEL MEASUREMENT AND CQI REPORTING

    公开(公告)号:CA3017385A1

    公开(公告)日:2017-10-26

    申请号:CA3017385

    申请日:2017-03-27

    Applicant: QUALCOMM INC

    Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station, where the plurality of signals include a plurality of beam reference signals, a plurality of beam refinement reference signals, a plurality of channel state information reference signals (CSI-RSs), or a combination thereof. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals.

    BEAM REFERENCE SIGNAL BASED NARROWBAND CHANNEL MEASUREMENT AND CQI REPORTING

    公开(公告)号:CA3017220A1

    公开(公告)日:2017-10-26

    申请号:CA3017220

    申请日:2017-03-27

    Applicant: QUALCOMM INC

    Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals. The apparatus transmits, to the base station, a feedback signal including information about one or more beams selected from the plurality of beams, the feedback signal further including one or more candidate uplink precoders.

    SYSTEM AND METHOD FOR BEAM MANAGEMENT

    公开(公告)号:CA3016710A1

    公开(公告)日:2017-10-19

    申请号:CA3016710

    申请日:2017-03-31

    Applicant: QUALCOMM INC

    Abstract: A first apparatus may communicate with a user equipment (UE) through an active beam. The first apparatus may transmit, to the UE, information indicating a periodicity at which control information is to be communicated on a control channel through a control-information beam. The first apparatus may communicate, with the UE, the control information on the control channel through the control-information beam at the periodicity. Further, the first apparatus may receive a request to change the active beam, which may indicate a beam index corresponding to a second beam, and the first apparatus may change the active beam to the second beam corresponding to the beam index indicated by the request.

    Sistema y procedimiento para la solicitud de ajuste de haz

    公开(公告)号:ES2991351T3

    公开(公告)日:2024-12-03

    申请号:ES17719405

    申请日:2017-04-03

    Applicant: QUALCOMM INC

    Abstract: Un aparato puede estar configurado para detectar un conjunto de haces desde una estación base. El aparato puede estar configurado además para seleccionar un haz del conjunto de haces. El aparato puede estar configurado además para determinar al menos un recurso en función del haz seleccionado. El aparato puede estar configurado además para transmitir, en el al menos un recurso determinado, una solicitud de ajuste de haz a la estación base. La solicitud puede indicar un índice asociado con el haz seleccionado. Otro aparato puede estar configurado para transmitir un primer conjunto de haces. El otro aparato puede estar configurado además para recibir una solicitud de ajuste de haz en al menos un recurso. El otro aparato puede estar configurado además para determinar un índice de haz de un haz en el primer conjunto de haces en función de la solicitud y el al menos un recurso. (Traducción automática con Google Translate, sin valor legal)

    Methods for beam determination after beam pair link indication

    公开(公告)号:NZ763534A

    公开(公告)日:2023-11-24

    申请号:NZ76353418

    申请日:2018-11-16

    Applicant: QUALCOMM INC

    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.

    TECHNIQUES FOR COMMUNICATING SYNCHRONIZATION SIGNAL BLOCK INDEX IN A TIMING SYNCHRONIZATION SIGNAL

    公开(公告)号:CA3054144C

    公开(公告)日:2023-10-17

    申请号:CA3054144

    申请日:2018-03-15

    Applicant: QUALCOMM INC

    Abstract: Techniques are described for wireless communication. In one method, a user equipment (UE) receives a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), with the TSS based at least in part on a timing of the TSS within a broadcast channel transmission time interval (BCH TTI); determines the timing of the TSS within the BCH TTI; and demodulates the PBCH based at least in part on the TSS. In another method, a base station allocates resources for a TSS and a PBCH within a BCH TTI; determines the TSS based at least in part on a timing of the TSS within the BCH TTI; and transmits, on the resources allocated for the TSS and the PBCH, the TSS and the PBCH, with the TSS transmitted as a demodulation reference signal (DMRS) for the PBCH on at least one port used to transmit the TSS and the PBCH.

    Técnicas para comunicar el índice de bloque de la señal de sincronización en una señal de sincronización de tiempo

    公开(公告)号:ES2902974T3

    公开(公告)日:2022-03-30

    申请号:ES18716407

    申请日:2018-03-15

    Applicant: QUALCOMM INC

    Abstract: Un método para la comunicación inalámbrica en un equipo de usuario, UE, que comprende: recibir (2405) un bloque de señal de sincronización, SS, que incluye una señal de sincronización de tiempo, TSS, una señal de sincronización primaria, PSS, y una señal de sincronización secundaria, SSS, la TSS se basa al menos en parte en un índice de bloque SS asociado con el bloque SS de manera que la TSS cambia desde el bloque SS al bloque SS para transmitir el índice de bloque SS; determinar (2410), basándose al menos en parte en el índice de bloque SS, un tiempo del bloque SS dentro de un intervalo de tiempo de transmisión del canal de difusión, BCH TTI; y demodular (2415) la TSS basándose, al menos en parte, en la SSS suponiendo que las señales de sincronización en el bloque SS tienen la misma dispersión de retardo, dispersión Doppler o desplazamiento Doppler.

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