METHOD AND APPARATUS FOR OBTAINING DOWNLINK CHANNEL INFORMATION

    公开(公告)号:US20200322933A1

    公开(公告)日:2020-10-08

    申请号:US16906292

    申请日:2020-06-19

    Abstract: A method and an apparatus for obtaining downlink channel information are provided. The method includes, at least, receiving a first pilot signal sent by user equipment by using N first antenna ports, and determining, based on the received first pilot signal, a downlink channel gain matrix corresponding to the N first antenna ports, determining, based on the downlink channel gain matrix corresponding to the N first antenna ports, a first weight matrix corresponding to the N first antenna ports, and sending a second pilot signal to the user equipment. The method further includes receiving a precoding matrix indicator PMI fed back by the user equipment, determining a second weight matrix based on the PMI, and determining, based on the first weight matrix and the second weight matrix, downlink channel information that corresponds to the N first antenna ports and that corresponds to the M second antenna ports.

    Data Transmission Method And Device
    3.
    发明申请

    公开(公告)号:US20200220752A1

    公开(公告)日:2020-07-09

    申请号:US16822781

    申请日:2020-03-18

    Abstract: This application provides a data transmission method and a device. The method includes: obtaining, by a transmit end device, a modulation symbol sequence in multiple time-frequency resource element groups, wherein a size of the time-frequency resource element group is agreed on in a protocol, or determined based on a transmission parameter; performing, by the transmit end device, interleaving processing on the modulation symbol sequence using the time-frequency resource element group as an interleaving unit, to obtain an order in which the modulation symbol sequence is mapped onto the multiple time-frequency resource element groups, wherein multiple consecutive modulation symbol groups in the modulation symbol sequence are mapped onto at least two of the multiple time-frequency resource element groups; and sending, by the transmit end device, the modulation symbol sequence in the order in which the modulation symbol sequence is mapped onto the multiple time-frequency resource element groups.

    TRANSMISSION RESOURCE ALLOCATION METHOD AND APPARATUS

    公开(公告)号:US20200214009A1

    公开(公告)日:2020-07-02

    申请号:US16817192

    申请日:2020-03-12

    Abstract: This application relates to the field of communication technologies, and provides a transmission resource allocation method and an apparatus, to flexibly control a quantity of reserved transmission resources. This method includes: obtaining, by a network-side device in each period, quantity information of user equipments (UEs) scheduled by the network-side device in a current period; and allocating, by the network-side device based on the quantity information, M transmission resources used to transmit HARQ acknowledgement information, where M represents a numeric value corresponding to a range in which the quantity information is located.

    Reference Signal Transmission Technology
    5.
    发明申请

    公开(公告)号:US20200014515A1

    公开(公告)日:2020-01-09

    申请号:US16576114

    申请日:2019-09-19

    Abstract: Example reference signal transmission methods and apparatus are described. In one example method, a base station divides a transmission bandwidth into a plurality of frequency domain units, and sends reference signal sending configuration information to a terminal. The terminal transmits a reference signal on one or more frequency domain units. The one or more frequency domain units and another frequency domain unit form a part of the transmission bandwidth supported by the base station. The terminal sends the reference signal on the one or more frequency domain units to the base station based on the reference signal sending configuration information.

    METHOD AND APPARATUS FOR SENDING SOUNDING REFERENCE SIGNAL SRS

    公开(公告)号:US20220209908A1

    公开(公告)日:2022-06-30

    申请号:US17571201

    申请日:2022-01-07

    Abstract: This application provides a method including: receiving first configuration information of an SRS resource from a network device, where the first configuration information includes a repetition factor of the SRS resource, and the repetition factor of the SRS resource is a quantity N of positions at which the SRS resource is mapped to a same subcarrier and mapped to at least one continuous symbol in one time unit, where N≥1 and is an integer; determining at least one first frequency domain resource to which the SRS resource is mapped in a first time unit.

    SIGNAL SENDING AND RECEIVING METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20220140973A1

    公开(公告)日:2022-05-05

    申请号:US17575288

    申请日:2022-01-13

    Abstract: A signal sending and receiving method includes: receiving, by a terminal device, at least one piece of resource configuration information for determining N reference signal resource groups, and each of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in an ith reference signal resource group in the N reference signal resource groups by using a jth antenna group corresponding to the ith reference signal resource group, where the jth antenna group includes at least one antenna. The N reference signal resource groups correspond to N antenna groups, and any two of the N antenna groups are different.

    METHOD AND APPARATUS FOR SENDING SOUNDING REFERENCE SIGNAL SRS

    公开(公告)号:US20200280404A1

    公开(公告)日:2020-09-03

    申请号:US16875755

    申请日:2020-05-15

    Abstract: This application provides a method including: receiving first configuration information of an SRS resource from a network device, where the first configuration information includes a repetition factor of the SRS resource, and the repetition factor of the SRS resource is a quantity N of positions at which the SRS resource is mapped to a same subcarrier and mapped to at least one continuous symbol in one time unit, where N≥1 and is an integer; determining at least one first frequency domain resource to which the SRS resource is mapped in a first time unit.

    COMMUNICATION METHOD AND APPARATUS
    10.
    发明申请

    公开(公告)号:US20200260305A1

    公开(公告)日:2020-08-13

    申请号:US16858327

    申请日:2020-04-24

    Abstract: This disclosure relates to a communication method and apparatus. The method includes: receiving, by a terminal device, a reference signal sent by a network device; measuring the reference signal to obtain at least one piece of beam quality; and reporting specified differential beam quality indication information to the network device, where the specified differential beam quality indication information is used to indicate that beam quality reporting is abnormal, and/or the specified differential beam quality indication information is used to indicate that beam quality corresponding to the specified differential beam quality indication information is a specified value. A corresponding apparatus is further disclosed. According to the solution in this disclosure, specified differential beam quality indication information is used to indicate that beam quality reporting is abnormal or indicate that beam quality is a specified value, so that beam quality can be accurately reported.

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