Method and device for uplink power control

    公开(公告)号:US10887842B2

    公开(公告)日:2021-01-05

    申请号:US16605707

    申请日:2018-04-17

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method for uplink power control, which is applied to a User Equipment (UE), and the method includes: determining a timing between a power control command and a Physical Uplink Control Channel (PUCCH), which adopts the power control command to control power. The present disclosure also provides a corresponding device.

    Apparatus and method for performing a random access in a wireless communication system

    公开(公告)号:US10728864B2

    公开(公告)日:2020-07-28

    申请号:US16280287

    申请日:2019-02-20

    Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.

    CACHE-BASED DATA TRANSMISSION METHODS AND APPARATUSES

    公开(公告)号:US20190268891A1

    公开(公告)日:2019-08-29

    申请号:US16410737

    申请日:2019-05-13

    Abstract: The present disclosure discloses cache-based data transmission methods and apparatuses. The method is implemented as follows. An apparatus where a caching node is located reports a caching capability to a network side, and the caching node is configured to cache data. The network side sends a cache indicating parameter to the apparatus where the caching node is located, and maintains a data list. Wherein, the cache indicating parameter is configured to control the caching node to cache the data which has the property of high repetition probability and/or high cache utilization, and the data list is a list of the data cached in the caching node. When the caching node has cached data requested by a UE, the UE obtains the requested data from the caching node.

    Method and auxiliary method, apparatus base station and user equipment for interference cancellation

    公开(公告)号:US10313174B2

    公开(公告)日:2019-06-04

    申请号:US15545672

    申请日:2016-01-25

    Abstract: The present disclosure provides a method for interference cancellation which includes: calculating a mean value and a variance value of a received signal to obtain statistics information of the received signal; calculating an estimating log-likelihood ratio using the statistics information of the received signal; calculating a decoding log-likelihood ratios of the received signal using the estimating log-likelihood ratio of the received signal, and performing calculations to update the statistics information of the received signal; repeating the above steps for a pre-determined number of times, performing hard decisions on the decoding log-likelihood ratios of the received signal, and outputting data bits obtained from the hard decision. The present disclosure also provides an apparatus, an auxiliary method, a base station and a terminal device for interference cancellation. The mechanism of the present disclosure can reduce the impact of inherent interference in the FBMC/OQAM system on system performances, and increase spectral efficiency and design flexibility of the FBMC/OQAM system.

    Filter bank multicarrier modulation-based signal transmitting method, signal receiving method and device

    公开(公告)号:US10128995B2

    公开(公告)日:2018-11-13

    申请号:US15236383

    申请日:2016-08-12

    Abstract: A Filter Bank Multicarrier (FBMC) modulation-based signal transmitting method includes mapping, by a transmitter, an original Data Block (DB) with at least one symbol to a first Resource Block (RB), preprocessing the original DB, and mapping the preprocessed original DB to a second RB, modulating, by the transmitter, data of the first RB and the second RB by using a FBMC modulation, and, transmitting, by the transmitter, the data modulated. A transmitter, comprising a mapping module, a modulating module and a transmitting module, wherein the mapping module is to map an original DB with at least one symbol to a first resource block (RB), preprocess the original DB, and map the preprocessed original DB to a second RB, the modulating module is to modulate data of the first RB and the second RB, by using FBMC modulation, and, the transmitting module is to transmit the data modulated.

    Duplex communication method, base station and terminal

    公开(公告)号:US10070422B2

    公开(公告)日:2018-09-04

    申请号:US15349999

    申请日:2016-11-11

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A bidirectional communication method and an apparatuses thereof are provided. An uplink control channel and a downlink control channel are respectively transmitted in a first subband and a third subband of an available un-paired spectrum, wherein control channels of reverse directions are transmitted at the same time in the first subband and the third subband, and uplink data and downlink data are transmitted in a time division multiplexing manner in a second subband of the available un-paired spectrum, wherein the first subband and the third subband are on the two ends of the available un-paired spectrum.

    Method and apparatus for generating, transmitting and receiving signals based on filter bank in wireless communication system

    公开(公告)号:US10027520B2

    公开(公告)日:2018-07-17

    申请号:US15322099

    申请日:2016-01-22

    Abstract: The present disclosure relates to a communication method and system for converging a 5G communication system for supporting higher data rates beyond a 4G system with a technology for IoT. The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application discloses a method and device for transmitting and receiving signals based on a filter bank. The device comprises: a CS-DFT spreading unit for generating two data flows by applying a CS-DFT spreading operation to a first complex-value data flow input thereto; a sub-carrier mapping unit for mapping each of the two data flows to corresponding sub-carriers; and an OQAM modulator for generating OQAM signals by applying an OQAM operation to the data flows mapped on sub-carriers.

    RESOURCE MANAGEMENT METHOD AND APPARATUS
    69.
    发明申请

    公开(公告)号:US20170280467A1

    公开(公告)日:2017-09-28

    申请号:US15509187

    申请日:2015-09-01

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The base station obtains measurement information from a user terminal, and determines a cell-edge user, transmits information of the cell-edge user in the cell, receives information of a cell-edge user in an adjacent cell; according to the information of cell-edge users in the cell and the adjacent cell, establishes a virtual cell including the cell-edge users, transmits configuration information of the cell-edge user in the cell and configuration information of the cell to base stations each of which a cell-edge user in the virtual cell is located at, and receives configuration information of each cell-edge user and configuration information of a cell where the each cell-edge user is located from a base station where the each cell-edge user is located, and configures uplink-downlink resources and a transmission mode for the virtual cell.

    APPARATUS AND METHOD FOR DIFFERENTIAL BEAMFORMING BASED RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20170223744A1

    公开(公告)日:2017-08-03

    申请号:US15424663

    申请日:2017-02-03

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a differential beamforming based random access method, base station, and user equipment, wherein the differential beamforming based random access method comprises, by a base station: receiving a preamble sequence from a first terminal in a differential beamforming receiving mode; determining a base station beam direction angular deviation based on the preamble sequence; and adjusting a base station beam according to the base station beam direction angular deviation, and transmitting a random access response signal to the first terminal through the adjusted base station beam. In the present disclosure, by detecting a base station beam direction angular deviation in a differential beamforming receiving mode, a base station receiving beam can be adjusted to an optimal beam faster than a beam polling way of the prior art, thereby improving the performance of a random access procedure.

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