SCHEDULING OF DOWNLINK TRANSMISSIONS BASED ON EXCHANGES OF PRE-SCHEDULING AND SCHEDULING MESSAGES

    公开(公告)号:US20190124630A1

    公开(公告)日:2019-04-25

    申请号:US16216644

    申请日:2018-12-11

    Abstract: Techniques are described for wireless communication. An exemplary method includes receiving, at a first device, a pre-scheduling message for a downlink transmission from a second device; transmitting a scheduling message to the second device in response to receiving the pre-scheduling message; and receiving the downlink transmission in accordance with the at least one downlink transmission parameter of the scheduling message. The scheduling message may include at least one downlink transmission parameter. Another exemplary method includes transmitting, to a first device, a pre-scheduling message for a downlink transmission; receiving, from the first device, a scheduling message comprising at least one downlink transmission parameter; and transmitting the downlink transmission to the first device in accordance with the at least one downlink transmission parameter of the scheduling message.

    Uplink transmit diversity and precoding

    公开(公告)号:US10205618B2

    公开(公告)日:2019-02-12

    申请号:US15851180

    申请日:2017-12-21

    Abstract: A configurable new radio (NR) uplink (UL) transmission may use transmit diversity. A user equipment (UE) may identify an uplink transmission of at least one stream as using one of cyclic prefix orthogonal frequency division multiplexing or discrete Fourier transform spread orthogonal frequency division multiplexing. The UE may apply a precoding matrix to the at least one identified stream. The precoding matrix changes over time. The precoding matrix may change based on closed loop feedback, a precoding cycling pattern, and/or a code division multiplexing group. The UE may transmit the at least one identified stream from multiple antennas according to the applied precoding matrix.

    Non-equal bit allocation for coexistence with scaled numerology systems

    公开(公告)号:US10200994B2

    公开(公告)日:2019-02-05

    申请号:US15591374

    申请日:2017-05-10

    Abstract: Aspects of the present disclosure describe a guard band signal for communication on a guard band between a first frequency band utilized by a first radio access technology having a first sub-carrier spacing and a second frequency band utilized by a second radio access technology having a second sub-carrier spacing that is a multiple of the first sub-carrier spacing. The guard band signal includes a symbol that is repeated a number of times equal to the multiple. The guard band signal may be generated and transmitted by a transmitting device. The guard band signal may be received and decoded by a receiving device. The guard band signal is interpretable according to a first numerology of the first radio access technology and according to a second numerology of the second radio access technology.

    INDICATING A NUMBER OF COPIED INFORMATION BITS IN A RETRANSMISSION

    公开(公告)号:US20190028119A1

    公开(公告)日:2019-01-24

    申请号:US16042874

    申请日:2018-07-23

    Abstract: Methods, systems, and devices are described for wireless communications. A transmitting device may generate first encoded bits by encoding first information bits using a polar code of a first size, N, and transmit the first encoded bits to a receiving device. After determining the receiving device failed to decode the encoded bits, the transmitting device may generate second encoded bits by encoding the first information bits using a polar code of a second size, 2N. In some cases, the transmitting device may use the first encoded bits and one or more copied information bits to generate the second encoded bits. The transmitting device may transmit the second encoded bits to the receiving device, along with an indication of the number of copied information bits used to generate the second encoded bits. The number of copied information bits may be based on changing channel conditions or transmission parameters.

    OVERLAPPING CODE BLOCK GROUPS FOR MULTIPLE CODEWORDS

    公开(公告)号:US20180375634A1

    公开(公告)日:2018-12-27

    申请号:US16017894

    申请日:2018-06-25

    Abstract: Methods, systems, and devices for wireless communication are described that support overlapping code block groups (CBGs) for multiple codewords. A receiving device may receive multiple codewords from a transmitting device over a set of spatial layers. The receiving device may determine an association between a set of feedback bits and code blocks (CBs) of the multiple codewords. The association may be based on a CBG configuration, which may bundle one or more sets of CBs of the one or more codewords using time boundaries (e.g., symbols) or based on a uniform or proportional CB distribution. Based on whether decoding of the codewords is successful, the receiving device may transmit the set of feedback bits. The number of feedback bits may be the same regardless of whether one or two codewords are received.

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