Control channel transmission method and apparatus

    公开(公告)号:US09674827B2

    公开(公告)日:2017-06-06

    申请号:US14610879

    申请日:2015-01-30

    CPC classification number: H04W72/042 H04L5/0053 H04L5/0064 H04W72/0406

    Abstract: Embodiments of the present invention relate to the communications field and provide a control channel transmission method and apparatus. The method includes: grouping REs except a DMRS in each physical resource block pair of L determined physical resource block pairs used to transmit a control channel into N eREGs, and calculating the number of valid REs except other overheads in each eREG of the N eREGs; and then mapping each of the eCCEs onto M eREGs according to the number of valid REs included in each eREG of the N eREGs of each physical resource block pair, and sending the eCCE by using the resource elements included in the eREG.

    Method for Generating Random Access Channel ZC Sequence, and Apparatus

    公开(公告)号:US20170086228A1

    公开(公告)日:2017-03-23

    申请号:US15367545

    申请日:2016-12-02

    Abstract: Embodiments provide a method for generating a random access channel ZC sequence, and an apparatus. A method for generating a random access channel ZC sequence includes: generating, by a base station, notification signaling, where the notification signaling instructs user equipment UE to generate a random access ZC sequence by using a second restricted set in a random access set; and sending, by the base station, the notification signaling to the UE, so that the UE generates the random access ZC sequence by using the second restricted set, where the random access set includes an unrestricted set, a first restricted set, and the second restricted set; and the second restricted set is a random access set that the UE needs to use when a Doppler frequency shift of the UE is greater than or equal to a first predetermined value.

    METHOD AND DEVICE FOR SCRAMBLING SEQUENCE CONFIGURATION, USER EQUIPMENT, AND BASE STATION
    74.
    发明申请
    METHOD AND DEVICE FOR SCRAMBLING SEQUENCE CONFIGURATION, USER EQUIPMENT, AND BASE STATION 有权
    用于装置顺序配置,用户设备和基站的方法和装置

    公开(公告)号:US20150230216A1

    公开(公告)日:2015-08-13

    申请号:US14693510

    申请日:2015-04-22

    Abstract: A method and a device for scrambling sequence configuration, a user equipment and a base station are provided. The method includes: obtaining a search space and/or a transmission mode corresponding to an enhanced control channel; performing a scrambling initialization operation according to the search space and/or the transmission mode, and determining an initialization value of a scrambling sequence; determining the scrambling sequence according to the initialization value of the scrambling sequence; and scrambling a transmission signal transmitted by the enhanced control channel according to the scrambling sequence and then transmitting, so that a user equipment which receives the transmission signal performs a descrambling operation according to the scrambling sequence in the transmission signal. Randomization of interferences between different cells or terminals can be guaranteed as far as possible.

    Abstract translation: 提供了一种用于加扰序列配置的方法和设备,用户设备和基站。 该方法包括:获得与增强控制信道相对应的搜索空间和/或传输模式; 根据搜索空间和/或传输模式执行加扰初始化操作,确定加扰序列的初始化值; 根据加扰序列的初始化值确定加扰序列; 并根据加扰序列对由增强控制信道发送的发送信号进行加扰,然后发送,从而接收发送信号的用户设备根据发送信号中的加扰序列进行解扰操作。 可以尽可能保证不同单元或终端之间的干扰的随机化。

    Techniques for synchronization in wireless communications

    公开(公告)号:US11991650B2

    公开(公告)日:2024-05-21

    申请号:US17658534

    申请日:2022-04-08

    Abstract: This application discloses a synchronization signal sending method and a related device. The method includes: generating, a first synchronization signal sequence and a second synchronization signal sequence, where the first synchronization signal sequence is a sequence obtained based on a first m-sequence, the second synchronization signal sequence is a sequence obtained based on a Gold sequence, the Gold sequence is generated based on a second m-sequence and a third m-sequence, and a generator polynomial of the first m-sequence is the same as a generator polynomial of the second m-sequence; mapping, the first synchronization signal sequence onto M subcarriers in a first time unit to obtain a first synchronization signal, and mapping the second synchronization signal sequence onto M subcarriers in a second time unit to obtain a second synchronization signal, where M and N are positive integers greater than 1.

    MAP UPDATE METHOD AND RELATED UPDATE APPARATUS

    公开(公告)号:US20230194307A1

    公开(公告)日:2023-06-22

    申请号:US18171901

    申请日:2023-02-21

    Inventor: Jianqin Liu

    CPC classification number: G01C21/3885 G01C21/3833

    Abstract: The present disclosure relates to map update methods and apparatuses. In one example method, a terminal side device receives sensing information from a sensor, where the sensing information indicates data collected by the sensor. The terminal side device receives second information from a cloud device, where the second information comprises second indication information, and the second indication information indicates a first change of a map element on a map. The terminal side device sends first information to the cloud device based on the sensing information and the second information, where the first information comprises first indication information, and the first indication information indicates a second change of the map element on the map.

    Sequence-based signal processing method and signal processing apparatus

    公开(公告)号:US11606238B2

    公开(公告)日:2023-03-14

    申请号:US17484833

    申请日:2021-09-24

    Abstract: This application provides a sequence-based signal processing method and apparatus. A sequence used for sending a signal on a PUSCH is determined. The sequence is a sequence {xn} including N elements, xn is an element in the sequence {xn}, and the determined sequence {xn} is a sequence satisfying a preset condition. Then, a first signal is generated and sent. By using the determined sequence, when a signal is sent on the PUSCH, relatively good sequence frequency domain flatness can be maintained, and a relatively low PAPR value and a relatively low cross-correlation between sequences can be maintained, thereby satisfying a communications application environment in which a signal is sent on the PUSCH, especially an NR system scenario or an NR similar scenario.

    Detection window indication method and apparatus

    公开(公告)号:US11589357B2

    公开(公告)日:2023-02-21

    申请号:US17148805

    申请日:2021-01-14

    Abstract: A detection window indication method and apparatus. The method includes receiving control channel configuration information from a network device, where the control channel configuration information indicates a resource multiplexing mode of a resource set of a control channel and a common signal block, and further indicates at least one of a duration of a detection window of the control channel or a time-domain start location of the detection window of the control channel, and detecting, according to the detection window and the resource set, the control channel.

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