Random access procedure for unlicensed cells

    公开(公告)号:US10375739B2

    公开(公告)日:2019-08-06

    申请号:US15755048

    申请日:2015-08-26

    Abstract: The disclosure relates to a method for performing a random access procedure between a user equipment and a radio base station. The UE is configured with at least one unlicensed cell having an unlicensed cell frequency, via which the UE performs the random access procedure bandwidth. A minimum frequency bandwidth threshold is defined for transmissions via the unlicensed cell. The user equipment selects a random access preamble sequence for the random access procedure. A frequency bandwidth is determined by the UE for transmitting the random access preamble sequence via the unlicensed cell, the determined frequency bandwidth of the random access preamble sequence being at least the minimum frequency bandwidth threshold. The UE then transmits the random access preamble sequence to the radio base station such that at least the determined frequency bandwidth of the unlicensed cell is occupied.

    Wireless communication method, eNodeB, and user equipment

    公开(公告)号:US10069524B2

    公开(公告)日:2018-09-04

    申请号:US15021253

    申请日:2013-09-25

    Abstract: The wireless communication method used for transmitting interfering resource allocation information (IRAI) comprises a step of transmitting the IRAI through L1 signaling from the serving eNB to the victim UE, wherein the IRAI indicates only interfering resource block (RB) allocation within the bandwidth of RBs allocated to the victim UE at least in the case that the resource allocation type of the interfering UE is type 0, type 1, or type 2-L. The resource allocation type of the interfering UE can be signaled from the serving eNB to the victim UE within the downlink control information (DCI) of the victim UE for allocating resource. The indication mode of the IRAI for at least one interfering UE among the multiple interfering UEs that belong to a same interfering cell can be dependent on those interfering UEs whose IRAI has been indicated among the multiple interfering UEs.

    SEARCH SPACE FOR EPDCCH CONTROL INFORMATION IN AN OFDM-BASED MOBILE COMMUNICATION SYSTEM
    60.
    发明申请
    SEARCH SPACE FOR EPDCCH CONTROL INFORMATION IN AN OFDM-BASED MOBILE COMMUNICATION SYSTEM 有权
    基于OFDM的移动通信系统中的EPDCCH控制信息的搜索空间

    公开(公告)号:US20160119904A1

    公开(公告)日:2016-04-28

    申请号:US14984518

    申请日:2015-12-30

    Abstract: The present invention relates to a method for receiving control information within a subframe of a multi-carrier communication system supporting carrier aggregation, the method comprising the following steps performed at a receiving node: performing a blind detection for the control information within a search space by means of a first search pattern, wherein the first search pattern is one of a plurality of search patterns, each of the plurality of search patterns comprising a plurality of candidates distributed on any of a plurality of aggregation levels, and wherein the plurality of search patterns further comprises a second search pattern whose candidates are non-overlapping the candidates of the first search pattern on the same aggregation levels.

    Abstract translation: 本发明涉及一种用于在支持载波聚合的多载波通信系统的子帧内接收控制信息的方法,该方法包括在接收节点执行的以下步骤:对搜索空间内的控制信息执行盲检测, 第一搜索模式的装置,其中所述第一搜索模式是多个搜索模式之一,所述多个搜索模式中的每一个包括分布在多个聚合级别中的任一个上的多个候选,并且其中所述多个搜索模式 还包括第二搜索模式,其候选在相同聚合级别上与第一搜索模式的候选不重叠。

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