Paging DRX optimization

• US 8,792,919 B2
• Filed: 02/20/2009
• Issued: 07/29/2014
• Est. Priority Date: 02/22/2008
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Koskela, Jarkko Tuomo
• Primary Examiner(s): Chang, Kent
• Assistant Examiner(s): OLIVER, GERALD L
• Application Number:
  US12/390,172
• Publication Number:
  US 20100022257A1
• Time in Patent Office: 1,985 Days
• Field of Search: 454/58, 454/221, 455/501, 454/141, 454/50, 454/521, 454/522, 370/229, 370/230, 370/231, 370/232, 370/310, 370/330, 370/206, 370/338, 455/458
• US Class Current: 455/458
• CPC Class Codes: H04W 68/025 Indirect paging

Abstract

In one exemplary embodiment of the invention, a method includes: receiving, by an apparatus, a first message having information descriptive of a parameter N in relation to a parameter T, where the apparatus is configured to participate in discontinuous reception of at least one paging message, where N is indicative of a number of paging groups per radio frame, where T is indicative of a number of radio frames over which the discontinuous reception is to occur; and receiving, by the apparatus, the at least one paging message in accordance with the information descriptive of N in relation to T.

Claims

1. A method, comprising:

receiving, by an apparatus, a first message comprising information descriptive of a parameter N in relation to a parameter T, where the apparatus is configured to participate in discontinuous reception of at least one paging message, where N is indicative of a number of paging groups in each radio frame during the discontinuous reception, where T is indicative of a number of radio frames over which the discontinuous reception is to occur, and where N is a mathematical function of T, where the information descriptive of N in relation to T comprises one of N=⅛

T, ¼

T, ½

T, T, 2T, 3T or 4T; and

receiving, by the apparatus, the at least one paging message in accordance with the information descriptive of N in relation to T.

2. A method as in claim 1, where the information descriptive of N in relation to T is signaled in the first message using three bits.

3. A method as in claim 1, where at least one of the first message and the at least one paging message is received on a physical downlink control channel.

4. A method as in claim 1, where a paging radio frame of the T radio frames for each paging occasion is given by:

SFN mod T=(T div N)*(UE_—

ID mod N),

where SFN is a system frame number, UE_ID is an identifier for the apparatus, div is a division operation and mod is a modulus operation.

5. A method as in claim 1, where the first message and the at least one paging message are received from an access node, a base station, a Node B or an evolved Node B.

6. A method as in claim 1, where the method is performed within an evolved universal terrestrial radio access network.

7. A method as in claim 1, where the method is implemented as a computer program stored on a non-transitory computer-readable medium.

8. An apparatus comprising:

a processor; and

a memory including computer program code, where the apparatus is configured to

participate in discontinuous reception of at least one paging message, the memory and the computer program code being configured to, with the processor, cause the apparatus at least to perform;

receive a first message comprising information descriptive of a parameter N in relation to a parameter T, where N is indicative of a number of paging groups in each radio frame during the discontinuous reception, where T is indicative of a number of radio frames over which the discontinuous reception is to occur, and where N is a function of T, where the information descriptive of N in relation to T comprises one of N=⅛

T, ¼

T, ½

T, T, 2T, 3T or 4T; and

receive the at least one paging message in accordance with the information descriptive of N in relation to T.

9. An apparatus as in claim 8, where the information descriptive of N in relation to T is signaled in the first message using three bits.

10. An apparatus as in claim 8, where the apparatus comprises a mobile phone.

11. A method comprising:

transmitting a first message comprising information descriptive of a parameter N in relation to a parameter T, where the information is for use in conjunction with discontinuous reception of at least one paging message, where N is indicative of a number of paging groups in each radio frame during the discontinuous reception, where T is indicative of a number of radio frames over which the discontinuous reception is to occur, and where N is a function of T, where the information descriptive of N in relation to T comprises one of N=⅛

T, ¼

T, ½

T, T, 2T, 3T or 4T; and

transmitting the at least one paging message in accordance with the information descriptive of N in relation to T.

12. A method as in claim 11, where the information descriptive of N in relation to T is signaled in the first message using three bits.

13. A method as in claim 11, where the method is implemented as a computer program stored on a non-transitory computer-readable medium.

14. An apparatus comprising:

a processor; and

a memory including computer program code, the memory and the computer program code being configured to, with the processor, cause the apparatus at least to perform;

generate a first message comprising information descriptive of a parameter N in relation to a parameter T, where the information is for use in conjunction with discontinuous reception of at least one paging message, where N is indicative of a number of paging groups in each radio frame during the discontinuous reception, where T is indicative of a number of radio flames over which the discontinuous reception is to occur, and where N is a function of T, where the information descriptive of N in relation to T comprises one of N=⅛

T, ¼

T, ½

T, T, 2T, 3T or 4T;

transmit the first message; and

transmit the at least one paging message in accordance with the information descriptive of N in relation to T.

15. An apparatus as in claim 14, where the information descriptive of N in relation to Tis signaled in the first message using three bits.

16. An apparatus as in claim 14, where the apparatus comprises an access node, a base station, a Node B or an evolved Node B. cm 1. A method, comprising:

receiving, by an apparatus, a first message comprising information descriptive of a parameter N in relation to a parameter T, where the apparatus is configured to participate in discontinuous reception of at least one paging message, where N is indicative of a number of paging groups in each radio frame during the discontinuous reception, where T is indicative of a number of radio frames over which the discontinuous reception is to occur, and where N is a mathematical function of T, where the information descriptive of N in relation to T comprises one of N=⅛

T, ¼

T, ½

T, T, 2T, 3T or 4T; and

receiving, by the apparatus, the at least one paging message in accordance with the information descriptive of N in relation to T.