Parallel processing of uplink and downlink transmissions

    公开(公告)号:AU2018211040A1

    公开(公告)日:2019-06-20

    申请号:AU2018211040

    申请日:2018-01-17

    Applicant: QUALCOMM INC

    Abstract: A UE may determine a number of resources granted for uplink or downlink communication in a processing window. The resources may include uplink resources or downlink resources and the processing windows may include a predetermined number of subframes. For uplink (UL) transmissions, this may include determining a number of transport block bits, resource blocks, or other resources scheduled in one or more first UL channel grants for a first UL channel, and determining a number of such resources scheduled in a second UL grant for a second UL channel. For downlink (DL) transmissions, the determining may include determining a number of resources received on a first DL channel in each subframe of a set of subframes, and determining a number of resources received on a second DL channel. The determined number of UL or DL resources may be compared to a corresponding threshold which his based on the UE capabilities and processed in accordance a result of the comparison. These and additional aspects are described herein.

    Uplink data transfer for wireless communications with mixed transmission time intervals

    公开(公告)号:AU2017357910A1

    公开(公告)日:2019-04-18

    申请号:AU2017357910

    申请日:2017-11-09

    Applicant: QUALCOMM INC

    Abstract: Described techniques provide for prioritization of radio bearers and logical channels based on mixed TTI durations or numerologies of the bearers or logical channels. Two or more bearers may be identified for uplink data transmission that carry data to be transmitted using different TTI durations or numerologies. Each bearer may be prioritized based on the associated bearer type, TTI duration or numerology, or combinations thereof. Additionally, one or more logical channels may be associated with one or more bearers, and also prioritized based on the associated bearer type, TTI duration or numerology, or combinations thereof. A buffer status report (BSR) may be generated that has one or more portions associated with the different priorities of bearers or logical channels. Buffer information associated with the higher priority bearers or logical channels may be provided ahead of buffer information associated with lower priority bearers or logical channels.

    Dynamic time division duplexing
    43.
    发明专利

    公开(公告)号:AU2017332670A1

    公开(公告)日:2019-03-07

    申请号:AU2017332670

    申请日:2017-09-15

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may allocate resources for communication with a user equipment (UE). The resources may include one or more subframes, and each subframe may include one or more shortened transmission time intervals (sTTIs). Each sTTI may be assigned a transmission direction according to a time division duplex (TDD) pattern. Based on traffic needs and/or interference from other UEs and/or base stations, the base station may determine to modify the TDD pattern used for communication. Accordingly, a base station may transmit an indicator in a control message or control region of a TTI or sTTI, to indicate to users that a transmission direction of an sTTI in the TDD pattern is being changed. Subsequently, a user may communicate with the base station according to the reconfigured TDD pattern.

    Downlink control channel structure for low latency applications

    公开(公告)号:AU2017310328A1

    公开(公告)日:2019-01-24

    申请号:AU2017310328

    申请日:2017-07-28

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. In one example, an indication in a first control message in a control region of a first transmission time interval (TTI) identifies a data region of the first TTI. A data region of the second TTI may be identified based on a grant of resources received in a second control message of a second TTI, where the data region of the first TTI and the control region of the second TTI are frequency division multiplexed with the data region of the second TTI. Other examples include a downlink grant at the beginning of a control region and uplink grants at the end of the control region. In other examples, a downlink grant for a user equipment (UE) may include an indication of resources allocated to the UE in that resource block and a second resource block.

    Dual stage channel interleaving for data transmission

    公开(公告)号:AU2017298112A1

    公开(公告)日:2018-12-20

    申请号:AU2017298112

    申请日:2017-06-16

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described that may perform dual stage channel interleaving in which code blocks are interleaved at the code block level and at a symbol level. The interleaved code block data may provide time diversity for the code block data, and the interleaved symbol data may provide frequency diversity for the code block data, thus helping to mitigate narrowband and/or bursty interference. The interleaving within the code block and interleaving within the symbols, in some examples, may allow pipelined implementation of decoding of the code blocks at the receiver, for faster processing. In some cases, systematic data and parity data may be interleaved within the code block data to provide a uniform distribution of the systematic data in time within the code block.

    Latency reduction techniques in wireless communications

    公开(公告)号:AU2017291825A1

    公开(公告)日:2018-12-13

    申请号:AU2017291825

    申请日:2017-07-06

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.

    Downlink control for demodulation reference signal transmissions

    公开(公告)号:AU2017247162A1

    公开(公告)日:2018-09-13

    申请号:AU2017247162

    申请日:2017-03-14

    Applicant: QUALCOMM INC

    Abstract: The present disclosure provides a unique control region that is mapped to each data region for DL DMRS transmissions. In addition, the present disclosure provides an updated DCI format that may include DL DMRS transmissions. The apparatus may receive a first content during a first TTI. In an aspect, the content may include at least a control region which includes a DMRS. In addition, a location of the DMRS may be defined by either a closed-loop precoding structure or an open-loop precoding structure. Furthermore, the duration of the first TTI may be shorter than 1 ms. The apparatus may demodulate the control region based at least on the DMRS.

    WIRELESS TRANSMISSION TIMING BASED ON TIMING ADVANCE VALUES IN SHORTENED TRANSMISSION TIME INTERVAL TRANSMISSIONS

    公开(公告)号:CA3040732A1

    公开(公告)日:2018-06-14

    申请号:CA3040732

    申请日:2017-12-06

    Applicant: QUALCOMM INC

    Abstract: Wireless transmission timing based on timing advance (TA) values in shortened transmission time interval (sTTI) transmissions are provided. A TA value associated with one or more component carriers (CCs) for a wireless transmission may be identified, a TA threshold value may be identified, and one or more parameters associated with the wireless transmission may be set at a first value when the TA value is below the TA threshold value and set at a second value with the TA value is above the TA threshold value. The one or more parameters may include a timing for feedback transmission according to a hybrid acknowledgement repeat request (HARQ) process associated with the wireless transmission, and the timing for the feedback transmission may be increased in the event that the TA value is above the TA threshold value.

    UPLINK TRANSMISSION TECHNIQUES IN LOW LATENCY WIRELESS COMMUNICATION SYSTEMS

    公开(公告)号:CA3038353A1

    公开(公告)日:2018-05-03

    申请号:CA3038353

    申请日:2017-10-26

    Applicant: QUALCOMM INC

    Abstract: Symbol alignment and power scaling are provided for different length transmission time intervals (TTIs) within predefined boundaries, such as boundaries of a slot of a subframe. Described techniques provide for identifying time and/or frequency resources for one or more TTIs and allocating such resources based on a location within a subframe, pilot signals that may be transmitted using the resources, other processing timelines, or any combination thereof. In some cases, a power allocation for symbols within a TTI may be determined based on the allocated resources for the TTI. Frequency hopping patterns and power scaling for three-symbol TTIs are also provided.

    DYNAMIC TIME DIVISION DUPLEXING
    50.
    发明专利

    公开(公告)号:CA3034409A1

    公开(公告)日:2018-03-29

    申请号:CA3034409

    申请日:2017-09-15

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may allocate resources for communication with a user equipment (UE). The resources may include one or more subframes, and each subframe may include one or more shortened transmission time intervals (sTTIs). Each sTTI may be assigned a transmission direction according to a time division duplex (TDD) pattern. Based on traffic needs and/or interference from other UEs and/or base stations, the base station may determine to modify the TDD pattern used for communication. Accordingly, a base station may transmit an indicator in a control message or control region of a TTI or sTTI, to indicate to users that a transmission direction of an sTTI in the TDD pattern is being changed. Subsequently, a user may communicate with the base station according to the reconfigured TDD pattern.

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