Method for waking a wireless device

• US 20060025180A1
• Filed: 07/30/2004
• Published: 02/02/2006
• Est. Priority Date: 07/30/2004
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Krishnan, Ranganathan, Rajkotia, Amol
• Application Number:
  US10/903,093
• Publication Number:
  US 20060025180A1
• Time in Patent Office: Days
• US Class Current: 455/574
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of reducing power consumption by waking a wireless device based on hashing a unique identifier of the wireless device is disclosed. A hash function is applied to a unique identifier; a wakeup time is determined based on the hashed unique identifier; and the wireless device is awoken at the wakeup time.

Claims

1. A method for waking a wireless device, said method comprising:

applying a hash function to a unique identifier;

determining a wakeup time based on the hashed unique identifier; and

waking the wireless device at the wakeup time.

2. The method of claim 1, wherein the unique identifier is an International Mobile Subscriber Identity (IMSI).

3. The method of claim 1, wherein the unique identifier is a phone number.

4. The method of claim 1, wherein the hash function produces an integer i (1≦

i≦

k;

1<

k≦

n, where k is a system parameter and n is the number of terminals in a network).

8. The wireless terminal of claim 1, wherein the hash function produces an integer i (1≦

i≦

k;

1<

k≦

n, where k is a system parameter and n is the number of terminals in a network).

5. A wireless terminal comprising:

means for applying a hash function to a unique identifier;

means for determining a wakeup time based on the hashed unique identifier; and

means for waking the wireless device at the wakeup time.

6. The wireless terminal of claim 5, wherein the unique identifier is an International Mobile Subscriber Identity (IMSI).

7. The wireless terminal of claim 5, wherein the unique identifier is a phone number.

9. Computer readable media embodying a program of instructions executable by a computer program, said computer readable media comprising:

a computer readable program code means for applying a hash function to a unique identifier;

a computer readable program code means for determining a wakeup time based on the hashed unique identifier; and

a computer readable program code means for waking the wireless device at the wakeup time.