公开(公告)号：US20170230997A1

公开(公告)日：2017-08-10

申请号：US15414045

申请日：2017-01-24

Applicant: QUALCOMM Incorported

Inventor： Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Peter Gaal ,  Tao Luo ,  Wanshi Chen

IPC: H04W72/14 ,  H04W72/10 ,  H04L5/00 ,  H04W72/04 ,  H04W28/26

CPC classification number: H04W72/14 ,  H04L1/00 ,  H04L1/0031 ,  H04L1/1896 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/005 ,  H04W16/14 ,  H04W28/08 ,  H04W28/26 ,  H04W72/0413 ,  H04W72/10 ,  H04W74/006 ,  H04W74/0808

Abstract: Uplink scheduling for license assisted access (LAA) mode systems is discussed in which a base station transmits a conditional grant to served user equipments (UEs) that include a transmission configuration for uplink transmissions. The transmission configuration includes the parameters necessary for the UE to perform transmissions. Before the beginning of a uplink transmission opportunity, a base station transmits an uplink activation grant over a contention-based shared carrier to the served UEs. The uplink activation grant indicates the transmission opportunity to the UEs and may identify a subset of UEs out of the served UEs that are available for transmission. The base station first secures the channel before transmitting the uplink activation grant. Upon receipt of the uplink activation grant, the UEs determine whether they will perform uplink transmissions and, if so, transmit the uplink data according to the transmission configuration.

公开(公告)号：US20140204881A1

公开(公告)日：2014-07-24

申请号：US14222353

申请日：2014-03-21

Applicant: QUALCOMM Incorported

Inventor： Juan Montojo ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04W16/02

Abstract: Systems and methods for frequency reuse on downlink control channels (DLCCs) are provided. One method can include determining a first number of symbols to support transmission of control information on a DLCC, and configuring a second number of symbols for transmission of the control information on the DLCC, wherein the second number of symbols is greater than the first number of symbols. The method can also include assigning a number of DLCCs based on the second number of symbols, and transmitting control information over an assigned number of DLCCs to achieve an effective reuse factor less than one. Another method can include identifying fractions of bandwidth in a system having cells, and allocating at least one of the cells to at least one of the fractions of bandwidth in a system. Resource element groups allocated to the fractions of bandwidth can be coordinated across cells to provide frequency reuse.

Abstract translation: 提供了下行链路控制信道（DLCC）上频率重用的系统和方法。 一种方法可以包括确定第一数量的符号以支持在DLCC上传输控制信息，以及配置用于在DLCC上发送控制信息的第二数量的符号，其中第二数量的符号大于第一数量的符号 符号。 该方法还可以包括基于第二数量的符号分配多个DLCC，以及在分配数量的DLCC上发送控制信息以实现小于1的有效重用因子。 另一种方法可以包括在具有小区的系统中识别带宽的分数，以及将至少一个小区分配给系统中的至少一个带宽分数。 分配给带宽分数的资源元素组可跨单元进行协调，以提供频率重用。