METHOD AND DEVICE FOR PERFORMING A RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200029366A1

    公开(公告)日:2020-01-23

    申请号:US16338373

    申请日:2017-09-29

    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 relates to the technical filed of wireless communication, and particularly, to a method for random access. The method comprises the steps of transmitting a random access signal comprising a preamble sequence and a payload from a terminal to a base station, wherein the preamble sequence is configured randomly or according to size of the data to be transmitted and the payload is configured according to current service requirements; and receiving by the terminal feedback information transmitted back by the base station which corresponds to the random access signal, wherein the feedback information comprises at least one of unique user identification information, timing advance information, uplink transmission grant information, and acknowledgement (ACK) signal/negative acknowledgement (NACK) signal. The present solution may use two interactive steps to realize the function that is realized through four interactive steps in the prior art by designing the random access signal such that it comprises the preamble sequence and the payload, therefore it can reduce access delay in data transmission.

    METHOD AND APPARATUS FOR TRANSMITTING UPLINK DEMODULATION REFERENCE SIGNALS

    公开(公告)号:US20190327689A1

    公开(公告)日:2019-10-24

    申请号:US16460403

    申请日:2019-07-02

    Abstract: A method and an apparatus for transmitting uplink demodulation reference signals (DMRSs) is provided. The method includes a user equipment (UE) determines an uplink DMRS format for demodulating a physical uplink shared channel (PUSCH) according to frequency-domain resources occupied by the PUSCH, in which the uplink DMRS format includes a comb occupied by a PUSCH DMRS sequence. The comb is subcarriers having specified intervals occupied by demodulation reference signals, and the specified intervals between the occupied subcarriers are same. For the DMRSs using the comb format, subcarriers with specific intervals are used for channel estimation, and values of the channel estimation are used for data demodulation. The UE transmits uplink information and the demodulation reference signals on physical resources using the uplink DMRS format. The present disclosure can improve the multiplexing ratio of uplink physical resources in a multi-UE scenario.

    METHOD AND APPARATUS FOR REPORTING CHANNEL STATE INFORMATION

    公开(公告)号:US20190268089A1

    公开(公告)日:2019-08-29

    申请号:US16347423

    申请日:2017-11-02

    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 discloses a method for reporting channel state information CSI, including: determining, by a user equipment (UE), a number of resources occupied by a demodulation reference signal (DMRS) used when calculating CSI; determining, by the UE, a number of resources used to transmit a physical downlink shared channel (PDSCH) used when calculating the CSI according to the number of resources occupied by the DMRS; and calculating, by the UE, the CSI according to the number of resources used to transmit the PDSCH determined, and reporting the CSI. Using the present disclosure can guarantee the performance of transmitting PDSCHs in a NR system.

    APPARATUS AND METHOD FOR RETRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20190182006A1

    公开(公告)日:2019-06-13

    申请号:US16324478

    申请日:2017-08-08

    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 relates to the retransmission in wireless communication system. A method of operating a base station comprises transmitting resource configuration information related to a resource for an initial transmission and a resource for a retransmission to a terminal, receiving initially-transmitted data through a first resource, and receiving retransmitted data through a second resource, if a decoding of the initially-transmitted data fails. The second resource is determined based on the first resource and the resource configuration information.

    CACHE-BASED DATA TRANSMISSION METHODS AND APPARATUSES
    86.
    发明申请
    CACHE-BASED DATA TRANSMISSION METHODS AND APPARATUSES 审中-公开
    基于CACHE的数据传输方法和设备

    公开(公告)号:US20160338031A1

    公开(公告)日:2016-11-17

    申请号:US15113790

    申请日:2015-01-16

    CPC classification number: H04W72/044 H04L67/2842

    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.

    Abstract translation: 本公开公开了一种基于高速缓存的数据传输方法和装置。 该方法实现如下。 高速缓存节点所在的装置向网络侧报告缓存能力,并且缓存节点被配置为缓存数据。 网络侧向高速缓存节点所在的设备发送缓存指示参数,并维护数据列表。 其中,缓存指示参数被配置为控制高速缓存节点来缓存具有高重复概率和/或高缓存利用率的属性的数据,并且数据列表是缓存在高速缓存节点中的数据的列表。 当高速缓存节点缓存由UE请求的数据时,UE从缓存节点获取所请求的数据。

    METHOD AND DEVICE FOR UPLINK POWER CONTROL
    87.
    发明公开

    公开(公告)号:US20240334342A1

    公开(公告)日:2024-10-03

    申请号:US18737386

    申请日:2024-06-07

    CPC classification number: H04W52/146 H04L5/0092 H04W52/36 H04W72/23 H04W80/08

    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.

    METHOD AND APPARATUS FOR COLLISION HANDLING IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240155586A1

    公开(公告)日:2024-05-09

    申请号:US18500898

    申请日:2023-11-02

    CPC classification number: H04W72/0453

    Abstract: The present disclosure discloses a method and device in a wireless communication system, the method including: receiving configuration information for configuring multiple cells for a terminal device; and determining a reference cell for a first symbol according to a tenth cell from the multiple cells, or determining the reference cell for the first symbol according to a cell other than the tenth cell from the multiple cells, wherein the first symbol is configured as uplink in the tenth cell and at least one frequency-domain resource in the tenth cell is for a downlink transmission; or the first symbol is configured as downlink in the tenth cell and at least one frequency-domain resource in the tenth cell is for uplink transmission. The present disclosure improves the flexibility and reliability of the wireless communication system.

    SIGNAL TRANSMISSION METHOD AND DEVICE FOR UE
    90.
    发明公开

    公开(公告)号:US20240080811A1

    公开(公告)日:2024-03-07

    申请号:US17766869

    申请日:2020-09-03

    CPC classification number: H04W72/044

    Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). Provided is a signal transmission method and device for User Equipment (UE). The signal transmission method for UE includes: receiving information for determining an uplink/downlink attribute of each frequency domain resource in each slot/symbol transmitted by the base station; determining the uplink/downlink attribute of each time-frequency resource according to the information for determining the uplink/downlink attribute of each frequency domain resource in each slot/symbol; and performing signal transmission according to the determined uplink/downlink attribute of each time-frequency resource.

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