TECHNIQUES FOR RMSI PDCCH TRANSMISSION AND MONITORING

    公开(公告)号:CA3075109A1

    公开(公告)日:2019-05-02

    申请号:CA3075109

    申请日:2018-10-24

    Applicant: QUALCOMM INC

    Abstract: Certain aspects of the present disclosure provide techniques and apparats for remaining minimum system information (RMSI) physical downlink control channel (PDCCH) monitoring. A method for wireless communications by a user equipment (UE) is provided. During initial access of a cell, the UE determines a default first periodicity to monitor for at least a first PDCCH scheduling RMSI. After the initial access, the UE determines a second periodicity to monitor at least a second PDCCH scheduling RMSI based on the default first periodicity or based on an indication received in a previous RMSI from the cell. The UE monitors for at least the first PDCCH during initial access at the default first periodicity and monitors for at least the second PDCCH at the second periodicity after the initial access.

    ASPECTS OF NEW RADIO PDCCH DESIGN
    32.
    发明专利

    公开(公告)号:SG11201901635YA

    公开(公告)日:2019-04-29

    申请号:SG11201901635Y

    申请日:2017-09-29

    Applicant: QUALCOMM INC

    Abstract: The present disclosure describes various aspects of the implementation and design of Physical Downlink Control Channel (PDCCH) in 5G new radio (NR) applications. Aspects include methods, apparatuses, and computer-readable medium for one or more of multiple PDCCH search spaces, control resource block (CRB), irregular multiple slots or mini-slots grants, or fast control channel signaling for grant-free uplink (UL). For example, different scheduling entities can each have one or two search spaces defined (e.g., common and/or user equipment (UE)-centric search spaces). Also, CRBs can be used as units for PDCCH transmission instead of resource element groups/control channel elements (REGs/CCEs). In addition, irregularities in time domain, frequency domain, or both can be introduced in the granting of resource blocks (RBs) over multiple slots or mini-slots. Moreover, signaling can be used to indicate to a UE configured for grant-free UL the portion of the pool of resources available for grant-free UL.

    RADIO LINK MONITORING WITHOUT ALWAYS-ON REFERENCE SIGNALS

    公开(公告)号:CA3052211A1

    公开(公告)日:2018-09-20

    申请号:CA3052211

    申请日:2018-03-10

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. A discontinuous reception (DRX) periodicity may be configured to enable monitoring of a reference signal (RS) for RLM procedures. For example, a transmitting device may configure a DRX periodicity for an RS, where the configured DRX periodicity may include a periodicity of discrete transmissions of the RS or a periodicity of a transmission window in which the RS is located. Accordingly, a receiving device may identify the DRX periodicity and monitor radio link quality using the RS based on the DRX periodicity. In some examples, the RS may be transmitted independent of control channel transmissions, and the transmitting device may configure one or more control resource sets for the RS.

    TRANSMISSION AND RECEPTION OF TRACKING REFERENCE SIGNALS IN NR-LTE DEVICES

    公开(公告)号:CA3049127A1

    公开(公告)日:2018-08-09

    申请号:CA3049127

    申请日:2018-02-06

    Applicant: QUALCOMM INC

    Abstract: Tracking reference signal designs for deployments without continuous reference signal transmission are described. The tracking reference signals may be extended in the frequency domain from a synchronization signal block and may occupy a subset or all of the symbol periods of the synchronization signal block. The tracking reference signals may have the same subcarrier spacing as synchronization signals and may be punctured in the frequency domain. Alternatively, the tracking reference signals may include common control reference signals transmitted periodically with paired reference signals in a data channel. The common control reference signals and paired reference signals may be transmitted regardless of the presence of control or data. For improved tracking after a transition to a connected mode or a long discontinuous reception (DRX) cycle, a slot including tracking reference signals may be repeated or an additional tracking reference signal pattern may be transmitted.

    Transmisión y recepción de señales de referencia de seguimiento

    公开(公告)号:ES2911639T3

    公开(公告)日:2022-05-20

    申请号:ES18706099

    申请日:2018-02-06

    Applicant: QUALCOMM INC

    Abstract: Un método, realizado por un equipo de usuario, para la comunicación inalámbrica, que comprende: identificar (1805, 1905), por el equipo de usuario, UE, en un modo conectado con una estación base, un conjunto de recursos para una señal de referencia de seguimiento recibida periódicamente de la estación base en un primer intervalo de tiempo de transmisión, TTI, la señal de referencia de seguimiento que comprende una pluralidad de subpatrones para un conjunto de subportadoras de una portadora para el UE para un conjunto de períodos de símbolo en el primer TTI, la pluralidad de subpatrones que abarca una primera porción de un ancho de banda de la portadora; recibir (1810, 1915) la señal de referencia de seguimiento en el conjunto identificado de recursos; y realizar (1815, 1920) el seguimiento en frecuencia y tiempo de la portadora basándose, al menos en parte, en la señal de referencia de seguimiento recibida.

    Señales de referencia comunes para múltiples espacios de búsqueda dentro de un conjunto de recursos de control

    公开(公告)号:ES2889148T3

    公开(公告)日:2022-01-11

    申请号:ES18740473

    申请日:2018-06-22

    Applicant: QUALCOMM INC

    Abstract: Un método para la comunicación inalámbrica, que comprende: identificar (505, 1405), en una estación base (105, 105-b), un conjunto de recursos de control, coreset, para un intervalo de tiempo de transmisión, el conjunto de recursos de control incluye un espacio de búsqueda común, CSS, y un espacio de búsqueda específico del equipo de usuario, UE (115), USS; dicho método está caracterizado porque: identifica (515, 1410), en la estación base (105,105-b), señales de referencia (330) para transmitir en el CSS (320) y el USS (325) del conjunto de recursos de control, y codifica, en la estación base (105, 105-b), las señales de referencia identificadas usando una secuencia común para el conjunto de recursos de control; y transmite (1415), en la estación base (105, 105-b), las señales de referencia identificadas codificadas en el CSS y el USS del conjunto de recursos de control.

    Search space design and use
    37.
    发明专利

    公开(公告)号:AU2017358902B2

    公开(公告)日:2021-12-02

    申请号:AU2017358902

    申请日:2017-11-03

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. A network access device may select a search space configuration for transmission of group(s) of one or more control channel elements (CCEs) to convey a downlink control information (DCI) message. The search space configuration may include a cross-coreset configuration, such as a cross-control channel subband configuration, a cross-symbol configuration, and/or a cross-beam configuration. The network access device may transmit the DCI message according to the selected search space configuration. A user equipment (UE) may monitor, based on the search space configuration, the group(s) of one or more CCEs to detect DCI messages. The UE may detect a DCI message for it and decode the DCI message based on the monitoring. Numerous other aspects are provided.

    HALF-DUPLEX OPERATION IN DUAL CONNECTIVITY

    公开(公告)号:SG11202106415TA

    公开(公告)日:2021-07-29

    申请号:SG11202106415T

    申请日:2020-01-08

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a first slot format configuration for a first cell associated with a first radio access technology (RAT) and a first radio frequency spectrum band that conflicts with a second slot format configuration for a second cell associated with a second RAT and a second radio frequency spectrum band during at least a portion of a transmission time interval (TTI). The UE may determine that the first cell has a priority over the second cell, based on the configured slot formats or based on the radio frequency bands, and may drop a communication on the second cell based on the identified priority. The UE may then communicate during at least a portion of the TTI on the first cell while the UE drops a communication on the second cell.

    CONFIGURATION OF COMMON SEARCH SPACES IN A DOWNLINK BANDWIDTH PART

    公开(公告)号:SG11202100643PA

    公开(公告)日:2021-03-30

    申请号:SG11202100643P

    申请日:2019-09-06

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may obtain access to a base station by performing an initial access procedure within an initial access bandwidth. In some cases, the UE may monitor for a cell specific configuration in the initial access bandwidth that indicate one or more first common search spaces within the initial access bandwidth that the UE may monitor for control information. Additionally, the UE may receive dedicated signaling after the initial access procedure that indicates a downlink bandwidth part (BWP) and one or more second common search spaces within the downlink BWP to monitor for control information. Accordingly, the UE may monitor the first common search spaces, the second common search spaces, or both based on the dedicated signaling.

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