Enhanced channel estimation method and user equipment performing the same

    公开(公告)号:US10855423B2

    公开(公告)日:2020-12-01

    申请号:US16212314

    申请日:2018-12-06

    Abstract: One disclosure of the present specification provides a channel estimation method of a user equipment (UE). The method comprising: acquiring a first channel estimate based on a first reference signal allocated to a first resource element of a subframe received from a base station; and removing a second reference signal from a second resource element of the subframe when an additional reference signal is not required, and decoding a data channel multiplexed in the second resource element using a result of channel estimation of an entire channel performed based on the first channel estimate. The second reference signal and the data channel may be multiplexed in the second resource element.

    Method and user equipment for transmitting uplink signal and prose signal

    公开(公告)号:US10575257B2

    公开(公告)日:2020-02-25

    申请号:US15758716

    申请日:2016-09-12

    Abstract: One disclosure of the present specification provides a method for simultaneously transmitting, by user equipment (UE), a cellular uplink signal and a proximity service (ProSe) signal. The method may comprise a step of determining the total transmission power PCMAX of the cellular uplink signal and the ProSe signal. Here, the total transmission power PCMAX may satisfy PCMAX_L≤PCMAX≤PCMAX_H. At this time, PCMAX_L may be a lower limit value and PCMAX_H may be an upper limit value. The cellular uplink signal is transmitted in a subframe n, the ProSe signal is transmitted in a subframe m, and subframe n may be considered as a reference subframe if subframe n and subframe m are time asynchronous.

    Method and device for performing measurement based on discovery signals

    公开(公告)号:US10536250B2

    公开(公告)日:2020-01-14

    申请号:US15509424

    申请日:2015-09-24

    Abstract: One disclosure of the present specification provides a method for performing measurement based on discovery signals. The method may comprise the steps of: receiving, from cells, discovery signals based on cell-specific reference signals (CRSs); and performing measurement based on the CRS-based discovery signals for a predetermined measurement period. If a measurement bandwidth is six resource blocks (RBs), the predetermined measurement period can be determined by 5*the measurement occasion periodicity of the discovery signals. If the measurement bandwidth is 25 resource blocks (RBs), the predetermined measurement period can be determined by 3*the measurement occasion periodicity of the discovery signals. Also, the discovery signals can be received for a discovery signal occasion duration defined by N consecutive subframes.

    Method for performing measurement in wireless device having plurality of RF chains

    公开(公告)号:US10390250B2

    公开(公告)日:2019-08-20

    申请号:US15558954

    申请日:2016-03-24

    Abstract: A disclosure of the present specification provides a method for performing measurement in a wireless device having a plurality of radio frequency (RF) chains for supporting aggregation of multiple carriers. The method may comprise the steps of: receiving, from a base station, information including measurement configuration (MeasConfig) information that includes a measurement gap (MG) for performing inter-frequency measurement; when the number of the received measurement gaps is one, determining, among the multiple carriers, a carrier corresponding to the RF chain to which the one measurement gap is to be applied; and transmitting, to the base station, a measurement report including the result of performing inter-frequency measurement by applying the measurement gap to the RF chain for the determined carrier. When the number of the received measurement gaps is one, the measurement report may include an indication of the carrier to which the measurement gap has been applied.

    Enhanced channel estimation method and user equipment performing the same

    公开(公告)号:US10326572B2

    公开(公告)日:2019-06-18

    申请号:US15394471

    申请日:2016-12-29

    Abstract: One disclosure of the present specification provides a channel estimation method of a user equipment (UE). The method comprising: acquiring a first channel estimate based on a first reference signal allocated to a first resource element of a subframe received from a base station; and removing a second reference signal from a second resource element of the subframe when an additional reference signal is not required, and decoding a data channel multiplexed in the second resource element using a result of channel estimation of an entire channel performed based on the first channel estimate. The second reference signal and the data channel may be multiplexed in the second resource element.

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