CELL SEARCH FOR D2D ENABLED UES IN OUT OF NETWORK COVERAGE

• US 20160330676A1
• Filed: 02/01/2016
• Published: 11/10/2016
• Est. Priority Date: 02/02/2015
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Thangarasa, Santhan, Kazmi, Muhammad, Axmon, Joakim, Sorrentino, Stefano
• Granted Patent: US 9,843,992 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 8/22 Processing or transfer of terminal data, e.g. status or physical capabilities
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

There is disclosed a method for operating a D2D enabled UE for a cellular communication network. The method comprises performing a cell search in an out of coverage condition of the UE, wherein performing a cell search is based on a first measurement configuration during a first phase, and based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for ProSe operation in out of network coverage operation.

The disclosure also pertains to related methods and devices.

Claims

1. A method for operating a D2D enabled UE for a cellular communication network, the method comprising performing a cell search in an out of coverage condition of the UE, wherein performing a cell search is based on a first measurement configuration during a first phase, and based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for ProSe operation in out of network coverage operation.

2. A D2D enabled UE for a cellular communication network, the D2D enabled UE being adapted for performing a cell search in an out of coverage condition of the UE, wherein performing a cell search is based on a first measurement configuration during a first phase, and performing a cell search is based on a second measurement configuration during a second phase, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in out of network coverage operation.

3. A method for operating a network node for a wireless communication network, the method comprising configuring a D2D enabled UE with a first measurement configuration, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in out of network coverage operation.

4. A network node for a wireless communication network, the network node being adapted for configuring a D2D enabled UE with a first measurement configuration, wherein the first measurement configuration pertains to a carrier whose sidelink is preconfigured for D2D operation in out of network coverage operation.

5. (canceled)

6. (canceled)