Uplink common burst symbol configuration

    公开(公告)号:AU2017317024B2

    公开(公告)日:2020-11-26

    申请号:AU2017317024

    申请日:2017-08-11

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described that provide for uplink common burst symbol waveform selection and configuration. A waveform for the uplink common burst symbol may be selected to be a single-carrier frequency division multiplexing (SC-FDM) waveform, an orthogonal frequency division multiplexing (OFDM) waveform, or combinations thereof, based at least in part on information that is to be transmitted. A pattern for SC-FDM sequences may be selected to provide enhanced channel estimation through common pilot tones across different sequences, wideband or narrowband sequences may be selected based at least in part on information to be transmitted, and acknowledgment feedback may be transmitted in an end portion of the uplink common burst symbol in some cases to provide additional processing time for determining the acknowledgment feedback.

    Técnicas para configurar señales de referencia en comunicaciones inalámbricas de baja latencia

    公开(公告)号:ES2784904T3

    公开(公告)日:2020-10-01

    申请号:ES16822851

    申请日:2016-12-12

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (600) para determinar una configuración de recursos de señal de referencia, RS, en comunicaciones inalámbricas, que comprende: recibir (602, 610), desde un punto de acceso, una concesión de planificación de recursos, en el que la concesión de planificación indica uno o más parámetros relacionados con ubicaciones de transmisión de una o más RS, en el que la concesión de planificación indica un número de proceso que corresponde a la transmisión de RS de información de estado de canal, CSI; determinar (604) ubicaciones de recurso de RS para la una o más RS en base a, al menos en parte, el uno o más parámetros, en el que determinar las ubicaciones de recurso de RS incluye determinar (608) al menos un intervalo de tiempo de transmisión, TTI, durante el cual la CSI-RS es transmitida por el punto de acceso en base a, al menos en parte, el número de proceso; y recibir (606) la una o más RS en las ubicaciones de recurso de RS, en el que recibir la una o más RS incluye recibir, desde el punto de acceso, la CSI-RS durante el TTI.

    Low latency group acknowledgements
    114.
    发明专利

    公开(公告)号:AU2016211711B2

    公开(公告)日:2020-05-28

    申请号:AU2016211711

    申请日:2016-01-26

    Applicant: QUALCOMM INC

    Abstract: Certain aspects of the present disclosure provide techniques that may be used for low latency communications. For example, aspects allow a single group acknowledgement to be used to acknowledge a plurality of low latency transmissions. An exemplary method generally includes receiving, from a base station, a plurality of downlink channel transmissions, wherein each of the downlink channel transmissions is sent using a first transmission time interval (TTI) that is reduced relative to a legacy TTI and providing, in a single uplink channel transmission sent using a second TTI that is larger than the first TTI, a group acknowledgement indicating whether or not the downlink channel transmissions were successfully received by a UE.

    Random access channel design for narrowband wireless communication

    公开(公告)号:AU2016315627B2

    公开(公告)日:2020-03-12

    申请号:AU2016315627

    申请日:2016-08-24

    Applicant: QUALCOMM INC

    Abstract: Random access techniques may use subcarriers allocated for random access requests in narrowband communication. Physical resources may be selected for transmission of a random access request based on a coverage class of a user equipment (UE). In some examples, a set of coverage classes may be identified based on one or more UE channel conditions, such as pathloss. Each coverage class may have one or more associated subcarriers of a set of subcarriers in a narrowband bandwidth, and random access messages may be transmitted using the associated subcarrier(s) for the coverage class of a UE. In some examples, different coverage classes may have different numbers of redundant transmissions of a random access message, which may be based on channel conditions associated with a particular coverage class. A UE, based on a measured channel condition, may determine a coverage class and select a subcarrier based on the determined coverage class.

    ГРУППОВОЕ ПОДТВЕРЖДЕНИЕ ПРИЕМА С НИЗКИМ ЗНАЧЕНИЕМ ЗАДЕРЖКИ

    公开(公告)号:EA033557B1

    公开(公告)日:2019-10-31

    申请号:EA201791453

    申请日:2016-01-26

    Applicant: QUALCOMM INC

    Abstract: Определенныеаспектыизобретенияпредставляюттехническиеспособы, которыемогутбытьиспользованыдлясвязис низкимзначениемзадержки. Например, аспектыобеспечиваютвозможностьиспользованияодногогрупповогоподтвержденияприемадляподтвержденияприемамножествапередачс низкимзначениемзадержки. Приводимыйв качествепримераспособв общемслучаевключаетв себяприемотбазовойстанциимножествапередачпоканалунисходящейсвязи, причемкаждаяизпередачпоканалунисходящейсвязипосылаетсяс использованиемпервогоинтервалавременипередачи (TTI), которыйуменьшенпоотношениюк традиционному TTI, иобеспечениев однойпередачепоканалувосходящейсвязи, посылаемойс использованиемвторогоинтервалавременипередачи (TTI), которыйбольшепервого TTI, групповогоподтвержденияприема, указывающего, былиилинебылиуспешнопринятыв UE передачипонисходящемуканалусвязи.

    ULTRA-LOW LATENCY LTE UPLINK FRAME STRUCTURE

    公开(公告)号:AU2019203669A1

    公开(公告)日:2019-06-13

    申请号:AU2019203669

    申请日:2019-05-24

    Applicant: QUALCOMM INC

    Abstract: Various aspects described herein relate to communicating in a wireless network. A transmission time interval (TTI) for an uplink control channel transmission within a subframe is determined, wherein the TTI comprises of a number of symbols which are a subset of a plurality of symbols in the subframe. Uplink control data can be transmitted over the uplink control channel during the TTI. In embodiments, transmitting the uplink control data comprises transmitting the uplink control data with a cyclic shift used to indicate a scheduling request for a resource grant of radio resource control (RRC) configured resources. / * -z I * / * - / (NI / * *' II, - \ * I 1W 'I / / 'I I \i I '1 -~ I I~ 'S If) I j -- *.**** I *" I L1~) * / tn 0 * I / (NI 44! L-\ I Id 2 -A If) * * ~- e / / 'S 'S

    DOWNLINK CHANNEL DESIGN FOR LTE WITH LOW LATENCY

    公开(公告)号:AU2019201071A1

    公开(公告)日:2019-03-07

    申请号:AU2019201071

    申请日:2019-02-15

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus for managing user equipment (UE) communications in a wireless communications system are disclosed. In an embodiment, one method comprises receiving, at the UE, control information located at one or more resource element positions in a control channel region of a downlink subframe or a slot of the downlink subframe. A check is performed on the control channel region received at each of the one or more resource element positions to determine whether corresponding control information is for the UE. Where the check indicates the corresponding control information is for the UE, a position of a data channel region and a transmission time interval (TTI) length of the data channel region is determined as being less than a temporal length of the downlink subframe, based on the corresponding control information. At the determined position, downlink data in the data channel region is received.

    Techniques for scheduling unicast and multicast wireless communications

    公开(公告)号:AU2017337341A1

    公开(公告)日:2019-03-07

    申请号:AU2017337341

    申请日:2017-08-02

    Applicant: QUALCOMM INC

    Abstract: Various aspects relate to determining whether one or more subframes are multicast-broadcast single-frequency network (MBSFN) subframes. A user equipment (UE) can receive, from a base station, a system information broadcast signal that includes an indication of one or more subframes as MBSFN subframes, and a subsequent system information broadcast signal that indicates at least scheduling information for a multicast control channel (MCCH) in at least a portion of the one or more subframes. The UE can determine, based at least in part on the indication or on the subsequent system information broadcast signal, a numerology for a physical multicast channel (PMCH) corresponding to the MCCH in at least the portion of the one or more subframes, and can process at least the portion of the one or more subframes based at least in part on the scheduling information or the numerology for the PMCH.

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