Shashikant M Maheshwari

US Patent:

7889713, Feb 15, 2011

Filed:

Oct 13, 2006

Appl. No.:

11/549387

Inventors:

Haihong Zheng - Coppell TX, US
Shashikant Maheshwari - Irving TX, US
Yousuf Saifullah - Richardson TX, US

Assignee:

Nokia Corporation - Espoo

International Classification:

H04L 12/28
H04L 12/56
H04W 4/00
H04W 40/00
H04B 7/15

US Classification:

370351, 370328, 370389, 3703952, 3703953, 455 111, 455445

Abstract:

Various example embodiments are disclosed relating to sending and processing messages in relay networks. In an example embodiment, a first unicast message indicating a plurality of wireless nodes included in a communication path between a base station and a path endpoint node in a wireless network may be received at a first receiving node, wherein the first unicast message may be received from a sending wireless node located neighboring to the first receiving node in the communication path. The first unicast message may be processed at the first receiving node. A second message may be sent based on a success/failure status of the processing from the first receiving node to a second receiving node included in the communication path.

US Patent:

8009620, Aug 30, 2011

Filed:

May 9, 2008

Appl. No.:

12/118476

Inventors:

Haihong Zheng - Coppell TX, US
Shashikant Maheshwari - Irving TX, US
Adrian Boariu - Irving TX, US

Assignee:

Nokia Siemens Networks Oy - Espoo

International Classification:

H04W 72/04
H04W 74/02

US Classification:

370329, 370338, 370477, 455451

Abstract:

Various example embodiments are disclosed herein. According to an example embodiment, an apparatus may include a wireless receiver configured to receive a persistent resource allocation, the persistent resource allocation providing a periodically recurring resource, and a wireless transmitter configured to transmit a persistent data burst in a first frame via the persistent resource allocation, the persistent data burst including a compressed MAC (media access control) header that excludes (or omits) a connection identifier (CID) field, wherein the compressed MAC header of the persistent data burst includes a field that indicates that the MAC header of the persistent data burst is compressed.

US Patent:

8009630, Aug 30, 2011

Filed:

Mar 5, 2008

Appl. No.:

12/074728

Inventors:

Adrian Boariu - Irving TX, US
Shashikant Maheshwari - Irving TX, US

Assignee:

Nokia Corporation - Espoo

International Classification:

H04W 4/00

US Classification:

370331, 455 111, 455 15

Abstract:

Methods for use in multi-hop relay networks are described. One method includes receiving a first message from a first relay station requesting a temporary suspension of communication between the first relay station and one or more user equipment. In response to receiving the first message, a second message is transmitted to the one or more user equipment. The second message includes instructions to the user equipment to temporarily suspend communication with the first relay station at a specific time. A third message is transmitted to the first relay station. A scanning operation is performed at the specified time in response to receiving the third message. A second method for use in multi-hop relay networks is also described. The second method includes transmitting a neighbor information message. The neighbor information message includes a relay zone offset indicating the start of a station in a frame structure.

US Patent:

8036133, Oct 11, 2011

Filed:

Mar 3, 2008

Appl. No.:

12/041564

Inventors:

Shashikant Maheshwari - Irving TX, US
Yogesh Swami - Irving TX, US
Yousuf Saifullah - Richardson TX, US

Assignee:

Nokia Corporation - Espoo

International Classification:

H04L 12/28
H04L 12/56
H04L 29/06
H04L 9/32
G06F 11/00
H03M 13/03

US Classification:

370242, 370235, 713161, 713169, 713170, 714103, 714148, 714152, 714746, 714786

Abstract:

Various example embodiments are disclosed relating to efficient techniques for error detection and authentication in wireless networks. For example, according to an example embodiment, an apparatus adapted for wireless communication in a wireless network may include a processor. The processor may be configured to transmit a message including a field to provide both authentication and error detection for the message. The field may include an authenticated checksum sequence.

US Patent:

8054789, Nov 8, 2011

Filed:

May 2, 2008

Appl. No.:

12/149502

Inventors:

Adrian Boariu - Irving TX, US
Shashikant Maheshwari - Irving TX, US
Yousuf Saifullah - Richardson TX, US

Assignee:

Nokia Siemens Networks Oy - Espoo

International Classification:

H04L 1/00

US Classification:

370329, 370242

Abstract:

A system and method include a base station configured to provide centralized data transmission scheduling for at least one relay operatively connected to the base station configured to provide centralized data transmission scheduling for at least one relay operatively connected to the base station in a point-to-point connection and configured to provide centralized data transmission scheduling for at least one mobile station operatively connected to the relay in a point-to-multipoint connection. The method efficiently reports ACKs/NAKs for a centralized scheduler wireless system that uses tunneling for data transmission and, in order to reduce a usage of bandwidth for reporting. The system and method also perform an aggregation via coding of ACK/NAK channels.

US Patent:

8121052, Feb 21, 2012

Filed:

May 15, 2008

Appl. No.:

12/121417

Inventors:

Haihong Zheng - Coppell TX, US
Shashikant Maheshwari - Irving TX, US
Basavaraj Patil - Coppell TX, US
Srinivas Sreemanthula - Flower Mound TX, US

Assignee:

Nokia Siemens Networks Oy - Espoo

International Classification:

H04W 4/00

US Classification:

370254, 370331, 370338, 370401

Abstract:

According to one general aspect, a method of using a customer premises equipment (CPE) to represent a mobile station (MS) to a base station (BS) is described. Wherein the CPE and the BS are part of a first wireless network based upon a first networking standard, and the MS and the CPE are part of a second wireless network based upon a second networking standard. The method comprising associating the MS with the CPE. The method further comprising indicating to the BS that the CPE is acting as an agent for the MS on the second wireless network. Also comprising acting as an agent, on the second wireless network, for the MS. And comprising, storing context information related to the MS, wherein the context information includes MS context information related the first network and MS context information related the second network.

US Patent:

8122313, Feb 21, 2012

Filed:

Oct 6, 2008

Appl. No.:

12/246475

Inventors:

Xiaoyi Wang - Beijing, CN
Shashikant Maheshwari - Irving TX, US

Assignee:

Nokia Siemens Networks Oy - Espoo

International Classification:

H04L 1/14

US Classification:

714750, 714749

Abstract:

Various example embodiments are disclosed. According to an example embodiment, a receiving station in a wireless network may receive a plurality of Medium Access Control Packet Data Units (MPDUs) from a transmitting station. Each of the plurality of MPDUs may include a sequence number. The receiving station may also determine which of the plurality of MPDUs were successfully or not successfully received from the transmitting station. The receiving station may also transmit, to the transmitting station, at least one automatic repeat request (ARQ) feedback information element (IE). The at least one ARQ feedback IE may include a number of acknowledgment maps field indicating a number of acknowledgment maps included in the ARQ feedback IE and the indicated number of acknowledgment maps. Each of the acknowledgment maps may include a sequence format field indicating a number of block sequence fields and the indicated number of block sequence fields. Each of the block sequence fields may indicate a sequence length of successive packets which were successfully or not successfully received based on the determining which of the plurality of received MPDUs were successfully received from the transmitting station.

US Patent:

8140077, Mar 20, 2012

Filed:

Apr 19, 2006

Appl. No.:

11/406754

Inventors:

Yousuf Saifullah - Flower Mound TX, US
Haihong Zheng - Coppell TX, US
Shashikant Maheshwari - Irving TX, US

Assignee:

Nokia Corporation - Espoo

International Classification:

H04W 36/00

US Classification:

455438, 455436, 455437, 455439, 455440, 455441, 455442, 455443, 455444

Abstract:

Various embodiments are disclosed relating to the optimization of relay station handovers and location update in a wireless network. According to an example embodiment, a request to handover a plurality of mobile stations from a first base station to a second base station may be sent. An identifier associated with the second base station for each of the plurality of mobile stations may be received. In another example embodiment, each of the identifiers is forwarded to the mobile station corresponding to the connection identifier. In another example embodiment, a location update may be performed by sending a message to a network device, such as a target base station, to provide location update information for a plurality of mobile stations. In this manner, one message may be transmitted over a wireless link to facilitate a handover or location update for a plurality of mobile stations.