Li Lin Li

US Patent:

7123601, Oct 17, 2006

Filed:

Feb 27, 2003

Appl. No.:

10/375602

Inventors:

Tao He - San Diego CA, US
Li Li - San Diego CA, US

Assignee:

Nokia Corporation - Espoo

International Classification:

H04B 7/216

US Classification:

370335, 370342

Abstract:

A method of requesting access from a mobile station (MS) to a network by which to conduct user-to-user communications (e. g. , requesting a dedicated traffic channel) is presented. A first time is when a user input at the mobile station initiates a call. The first time as compared to a threshold time. A time-dependent code, such as a CDMA long code, is calculated for a random time if the first time is earlier than the threshold time, or for the beginning of a slot is the first time is later than the threshold time. A mobile station to practice the method includes a user interface whereby a call may be initiated at the first time, a processor for calculating the time-dependent code, and a comparator for comparing a start threshold time to the first time. The threshold time is related to the slot time.

US Patent:

20050288045, Dec 29, 2005

Filed:

Jun 28, 2004

Appl. No.:

10/880326

Inventors:

Jianhao Yang - San Diego CA, US
Kuldeep Jain - San Diego CA, US
Li Li - San Diego CA, US

International Classification:

H04Q007/20

US Classification:

455466000

Abstract:

Apparatus, and associated method, forms a direct data connection between mobile stations of a packet radio communication system. An SMS message is sent by an initiating mobile station to another mobile station between which communications are to be effectuated. The SMS message includes the IP address of the initiating mobile station. Once the SMS message is delivered to the other mobile station, the other mobile station is caused to obtain an IP address, if necessary. And, a socket connection is formed when the other mobile station returns a response message to the initiating mobile station. The mobile stations are each provided with the IP address of the other mobile station, and other needed information by way of which to form a direct connection upon which the data is communicated directly between the mobile stations.