Erik Andreas Colban

US Patent:

7346352, Mar 18, 2008

Filed:

Nov 4, 2004

Appl. No.:

10/982152

Inventors:

Erik Colban - San Diego CA, US
Srinivasan Balasubramanian - San Diego CA, US
Irfan Khan - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ)

International Classification:

H04Q 7/20

US Classification:

455442, 455436, 455437, 370331, 370332

Abstract:

A method of coordinating broadcast parameter settings enables autonomous soft handoff by a mobile station. Any base station can initiate a broadcast parameter coordination process. The initiating base station assumes the role of an arbitrator and is responsible for determining the broadcast parameters. The broadcast parameter coordination process does not require any intervention or involvement by the PDSN or any signaling with the mobile station, except to inform the mobile station of the soft handoff sectors after the broadcast parameter coordination process is completed. The list of soft handoff sectors may be sent to the mobile station in a common overhead message.

US Patent:

7359354, Apr 15, 2008

Filed:

Jun 10, 2004

Appl. No.:

10/865356

Inventors:

Vibhor Julka - San Diego CA, US
Roger Gustavsson - Sollentuna, SE
Erik Colban - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ)

International Classification:

H04Q 7/00

US Classification:

370331, 370349, 370392, 370400, 455436, 455439

Abstract:

A wireless communication network updates packet zone tracking variables for mobile stations having packet data connections with the network in a manner consistent with that used by the mobile stations for their locally stored packet zone tracking variables. The network consequently reduces the incidence of unnecessary link renegotiations by reducing mismatches between network-stored and mobile-stored packet zone tracking information. A network routing entity may be configured to update a stored packet zone tracking variable for a mobile station if that mobile's link is renegotiated in dormant handoff of the mobile station but not for hard handoff renegotiations. The entity may maintain two or more tracking variables for the mobile station, one that is updated for hard and dormant handoff renegotiations, and one that is updated for dormant handoff renegotiations so as to better match the mobile-stored variable. A third tracking variable may be passed by base stations during hard handoff.

US Patent:

7586922, Sep 8, 2009

Filed:

Jan 27, 2005

Appl. No.:

11/044946

Inventors:

Sanjeevan Sivalingham - San Diego CA, US
Martin Renschler - San Diego CA, US
Erik Colban - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ) - Stockholm

International Classification:

H04L 12/28
H04J 3/16
H04B 7/212
H04W 4/00

US Classification:

37039552, 370338, 370349, 370401, 370466, 709223

Abstract:

A Packet Data Services Node (PDSN) optionally frames user data from an Application IP packet received from a public data network (e. g. , the Internet) into a Point-to-Point Protocol (PPP) frame, and encapsulates the Application IP packet or PPP frame data into one or more Generic Routing Encapsulation (GRE) frames for further transmission within a wireless communication network. The PDSN additionally inserts into each GRE frame, Application IP packet fragmentation information that indicates whether the Application IP packet or PPP frame terminates in the associated GRE frame. Other network nodes, such as a Packet Control Facility (PCF) or Base Station Controller (BSC), may interpret the fragmentation information and ascertain the boundaries of Application IP packets or PPP frames, using this information to improve network efficiency.

US Patent:

7606197, Oct 20, 2009

Filed:

Mar 31, 2005

Appl. No.:

11/094951

Inventors:

Vibhor Julka - San Diego CA, US
Erik Colban - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ) - Stockholm

International Classification:

H04W 4/00
H04M 1/00

US Classification:

370331, 370352, 370353, 370354, 370310, 3703102, 4555521, 4554321, 455436, 455442

Abstract:

When a mobile station requests circuit services notifications through a packet switched network, a mobile switching center sets a forwarding indicator. When the MSC detects an event indicative of a change in the status of the mobile station, the MSC sends an event notification to the packet switched network if the forwarding indicator is set to true. In the packet switched network, the base station can use the event notifications to manage communication resources used for packet data communications with the mobile station.

US Patent:

7626975, Dec 1, 2009

Filed:

Nov 4, 2004

Appl. No.:

10/982299

Inventors:

Erik Colban - San Diego CA, US
Srinivasan Balasubramanian - San Diego CA, US
Irfan Khan - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ercisson (publ) - Stockholm

International Classification:

H04J 3/06

US Classification:

370350, 370503, 370512, 370509, 370510

Abstract:

Transmission of broadcast streams in multiple sectors is synchronized based on time stamps or sequence numbers in data packets received at the base station. The base stations use the time stamps to calculate a frame transmission start time and start position for the data packets. The base station monitors the packet latency of data within its buffer based on the time stamp in the data packets and initiates a resynchronization procedure if the packet latency exceeds predetermined bounds.

US Patent:

7689214, Mar 30, 2010

Filed:

Jan 31, 2006

Appl. No.:

11/343712

Inventors:

Erik Colban - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ) - Stockholm

International Classification:

H04W 4/00

US Classification:

455433, 455455, 4554351

Abstract:

In a mobile communication network, the base station is configured to query the mobile station for its mobile equipment identifier if not provided by the mobile switching center before traffic channel setup. The base station may send the mobile equipment identifier to the mobile switching center during call setup.

US Patent:

8248915, Aug 21, 2012

Filed:

Dec 30, 2005

Appl. No.:

11/323321

Inventors:

Vincent B. Baglin - San Diego CA, US
Srinivasan Balasubramanian - San Diego CA, US
Sanjeevan Sivalingham - San Diego CA, US
Erik Colban - San Diego CA, US
Yingzhe Wu - San Marcos CA, US
Prashanth Sharma - San Diego CA, US
Hai Le - Plano TX, US
Rath Vannithamby - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ) - Stockholm

International Classification:

G01R 31/08

US Classification:

370217, 370219

Abstract:

A mobile communication network includes a plurality of access nodes that can serve different roles in support of a communication session with a mobile station. An access node can serve as a connecting node that receives access requests the mobile station, as an anchor node to anchor a radio packet connection with a core network for the communication session; or as a primary node to store session information for the communication session. When the communication session is established, the anchor node for the communication session may select another access node to serve as the primary node. Session information can be stored at both the anchor node and primary node so that data can be delivered to the mobile station if either one of the anchor node and primary node are available.

US Patent:

8248916, Aug 21, 2012

Filed:

Dec 30, 2005

Appl. No.:

11/323456

Inventors:

Vincent B. Baglin - San Diego CA, US
Erik Colban - San Diego CA, US
Rath Vannithamby - San Diego CA, US
Srinivasan Balasubramanian - San Diego CA, US

Assignee:

Telefonaktiebolaget LM Ericsson (publ) - Stockholm

International Classification:

H01R 31/08

US Classification:

370217, 370219

Abstract:

A mobile communication network includes a plurality of access nodes that can serve different roles in support of a communication session with a mobile station. An access node can serve as a connecting node that receives access requests the mobile station, as an anchor node to anchor a radio packet connection with a core network for the communication session; or as a primary node to store session information for the communication session. One or more monitoring entities monitor the availability of the access nodes and broadcast notification messages to other access nodes when an access node failure is detected. The broadcast message includes the identity of the failed access node. Other access nodes may take action to restore connections and recover session information maintained by the failed access node.