公开(公告)号：US10567172B2

公开(公告)日：2020-02-18

申请号：US15526805

申请日：2015-04-27

Applicant: ZTE Corporation

Inventor： Lin Chen ,  Fang Zhang ,  Yufeng Ruan

IPC: H04L29/06 ,  H04L9/08 ,  H04W12/04

Abstract: Disclosed are a key updating method and device, and a master Transmission Point (TP). The method includes: receiving a key parameter for generating a data encryption key of a TP in a virtual cell (S102); and generating the data encryption key of the TP in the virtual cell according to the key parameter and a cell Identity (ID) of the virtual cell (S104). By means of the key updating method and device and the master TP, the problem about key updating of different TPs in a virtual cell is solved.

公开(公告)号：US10172052B2

公开(公告)日：2019-01-01

申请号：US15512063

申请日：2015-03-06

Applicant: ZTE CORPORATION

Inventor： Lin Chen ,  Fang Zhang ,  Yufeng Ruan

IPC: H04W36/30 ,  H04W36/00 ,  H04W16/32 ,  H04W36/04 ,  H04W36/38 ,  H04W40/24 ,  H04W24/02 ,  H04W84/18

Abstract: Provided are a method and a device for dynamically constructing a virtual cell. The method includes: a master station sending an event A4 to UE and receiving an A4 measurement report from the UE; and the master station adding a cell corresponding to a cell identity carried in the A4 measurement report as a slave station, herein the master station and slave stations form a first virtual cell. In the technical solution, a serving cell selected by UE may be any cell and is not necessary to be a macro cell, the master station adds a cell which satisfies an event A4 as a slave station and thereby a virtual cell is realized.

公开(公告)号：US09979521B2

公开(公告)日：2018-05-22

申请号：US15038044

申请日：2014-06-18

Applicant: ZTE CORPORATION

Inventor： Nan Li ,  Chen Huang ,  Dongying Zhang ,  Zhen Ren ,  Peng Geng ,  Gang Qiu ,  Yufeng Ruan ,  Fang Zhang ,  Xi Yuan

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/024 ,  H04W72/00

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/00 ,  H04W72/042

Abstract: The present document discloses a method, apparatus and system for indicating downlink resources of a coordinated multi-point network in an LTE system. The method includes: determining a control station/cell and a service station/cell of a User Equipment (UE); and indicating through signaling that a Physical Downlink Shared Channel (PDSCH) of the UE occupies radio resources of the service station/cell in a control region, whereby a start position of the PDSCH allocated for the UE by the service station/cell is the first symbol of a subframe, and when a resource mapping in the control region is performed, the PDSCH does not occupy Resource Elements (REs) occupied by a Cell Reference Signal (CRS), a Physical Control Format Indicator Channel (PCFICH), a Physical Hybrid-ARQ Indicator Channel (PHICH) of a station/cell where the PDSCH is located, and a Physical Downlink Control Channel PDCCH of the UE.