US 2015/0092630 A1 · UE Enhancement in FDD-TDD Joint Operation Networks

Abstract

To support the new characteristics where FDD carriers and TDD carriers provide different services with different QoS or with different coverage or with different mobility robustness, UE enhancements of FDD-TDD network are proposed. In one embodiment, a dual mode UE in idle mode camps on a source cell and determines a target cell based on the cn domain and/or additional paging information contained in an enhanced paging message. In another embodiment, a dual mode UE may establish an RRC connection with a source cell with TDD carrier, and later is handover or redirected to a target cell supporting voice over IMS. The handover or redirection is based on the cn domain and/or the additional paging information contained in the enhanced paging message.

Claims22

Dependent claims

A method, comprising:

camping on a first cell as a source cell in a selected public land mobile network (PLMN) by a user equipment (UE), wherein the UE supports FDD-TDD joint operation;
receiving an enhanced paging message that indicates additional paging information;
selecting a second cell as a target cell based on the additional paging information;
and
performing random access channel (RACH) procedure with a target base station and thereby establishing a radio resource control (RRC) connection with the target cell.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/496,148Filed 25 Sep 2014

Priority

27 Sep 2013

Published

2 Apr 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04W 48/20
Access restriction ; Network selection; Access point selection: selecting an access point
H04L 5/14
Arrangements affording multiple use of the transmission path: two-way operation using the same type of signal, i.e. duplex
H04L 5/143
Two-way operation using the same type of signal, i.e. duplex: for modulated signals
H04L 5/1469
Two-way operation using the same type of signal, i.e. duplex: using time-sharing

UE Enhancement in FDD-TDD Joint Operation Networks

Life of this patent

UE Enhancement in FDD-TDD Joint Operation Networks

Life of this patent

Abstract

Claims22