公开(公告)号：US09942714B2

公开(公告)日：2018-04-10

申请号：US15125577

申请日：2015-03-12

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Jing Fu ,  Haiyang Quan ,  Jing Liang

IPC: H04W4/02 ,  H04W64/00 ,  H04W24/08 ,  H04W72/08 ,  H04W72/10 ,  H04J11/00 ,  H04W88/02

CPC classification number: H04W4/026 ,  H04J11/00 ,  H04W24/08 ,  H04W64/00 ,  H04W72/085 ,  H04W72/10 ,  H04W88/02

Abstract: The present invention provides a method and device for transmission on unlicensed spectrum in a UE and a base station. In view of the problem of DFS constraints and PHICH resource waste that is caused by communication of an uplink synchronous HARQ on unlicensed spectrum, in the present invention, logical information is configured so that PUSCHs transmitted through different sub-frames on different physical carriers form one logical carrier, and PHICH resources are reserved for the logical carrier. As an embodiment, downlink signaling is sent in a sub-frame for sending a PHICH so as to indicate transmission bandwidth for data retransmission. The solution provided in the present invention saves PHICH resources and eliminates the constraints on the DFS by the synchronous HARQ. Besides, the present invention reuses the CA scheme in the existing LTE as much as possible, and has high compatibility.

公开(公告)号：US09924430B2

公开(公告)日：2018-03-20

申请号：US14760365

申请日：2014-01-07

Applicant: China Academy of Telecommunications Technology

Inventor： Jing Liang ,  Haiyang Quan

IPC: H04W36/14 ,  H04W36/00 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W36/14 ,  H04W36/0061 ,  H04W36/0072 ,  H04W84/12 ,  H04W88/06

Abstract: Disclosed are a heterogeneous network switching method, device and system, relating to the technique of communication. When a network-side device such as a base station determines that a UE needs to be switched into a non-3GPP network, switch signaling carrying switch indication information is sent to the UE; the switch indication information is used for instructing the UE to switch some of or all of the bearers from a 3GPP network to a non-3GPP network, so that the UE can switch some of all of the bearers from a 3GPP network to a non-3GPP network according to the switch indication information, thus realizing heterogeneous network switching initiated by a network side.

公开(公告)号：US09451579B2

公开(公告)日：2016-09-20

申请号：US14414038

申请日：2013-07-10

Applicant: China Academy of Telecommunications Technology

Inventor： Haiyang Quan ,  Jing Liang ,  Xin Su

IPC: H04W24/00 ,  H04W64/00 ,  G01S5/12 ,  G01S3/04

CPC classification number: H04W64/006 ,  G01S3/04 ,  G01S5/12 ,  H04W64/00

Abstract: An embodiment of the present application relates to the technical field of wireless communications, in particular to a positioning information determination method and device, for solving the problem of large positioning result errors in the prior art due to the fact that existing positioning methods cannot acquire the height difference between a UE and a base station. The positioning information determination method provided in the embodiment of the present invention comprises: a base station receives an uplink signal from a UE; and the base station determines the angle of arrival, beam declination angle and timing advance of the UE according to the received uplink signal. By determining the angle of arrival, beam declination angle and timing advance of a UE according to the received uplink signal, the base station determines the height difference between the UE and the base station according to the beam declination angle, thus reducing positioning result error and improving positioning precision.

Abstract translation: 本申请的实施例涉及无线通信的技术领域，特别是涉及一种定位信息确定方法和装置，用于解决现有技术中的大的定位结果错误的问题，这是由于现有的定位方法不能获得 UE与基站之间的高差。 本发明实施例提供的定位信息确定方法包括：基站从UE接收上行链路信号; 并且基站根据接收到的上行链路信号确定UE的到达角，波束偏角和定时提前。 通过根据接收的上行链路信号确定UE的到达角，波束偏角和定时提前，基站根据波束偏角确定UE与基站之间的高度差，从而降低定位结果误差， 提高定位精度。