The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2018
Filed:
Jul. 31, 2013
China Academy of Telecommunications Technology, Beijing, CN;
CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY, Beijing, CN;
Abstract
Disclosed are a data forwarding method and device, used for solving the problem that a communication interruption risk is generated when a user equipment (UE) is handed over in an existing hierarchical network. The method comprises: a source macro base station obtaining serial number sending state information of PDCP data packets, in uplink and downlink directions, of a local base station currently accessed by a UE, a control plane of the UE being connected to the source macro base station, and a user plane being connected to the local base station; and the source macro base station sending the serial number sending state information to a target base station that the UE is to be handed over to, and the target base station establishing a user plane connection to the UE according to the serial number sending state information.