Method and system for managing forward link power control within a code-division multiple access mobile telephone communication network

• US 6,144,841 A
• Filed: 03/10/1998
• Issued: 11/07/2000
• Est. Priority Date: 03/10/1998
• Status: Expired due to Fees

• Current Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Original Assignee: Nortel Networks Corporation
• Inventors: Feeney, Michael Stephen
• Primary Examiner(s): Hunter, Daniel S.
• Assistant Examiner(s): ZEWDU, MELESS NMN
• Application Number:
  US09/037,603
• Time in Patent Office: 973 Days
• Field of Search: 455/69, 455/70, 455/422, 455/522, 370/318, 370/320, 370/332, 370/333, 370/342, 370/442, 330/129, 327/346
• US Class Current: 455/69
• CPC Class Codes: H04W 52/20 using error rate
• CPC Class Codes: H04W 52/282 taking into account the speed of the mobile
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 52/362 Aspects of the step size

Abstract

A method for managing forward link power control within a code-division multiple access mobile telephone communication network is disclosed. A mobile telephone communication network constantly monitors for a frame erasure reported by a mobile telephone. In response to the detection of a frame erasure, the mobile telephone'"'"'s digital gain assigned to the mobile telephone by the mobile telephone communication network is increased by a step-up value to close the forward link. This step-up value may be different each time depending on the speed and position of the mobile telephone. Afterwards, the digital gain is continuously reduced in an exponential manner until another frame erasure is reported.

Claims

1. A method for managing forward link power control within a mobile telephone communication network, said method comprising the steps of:

detecting frame erasures for a mobile telephone within said mobile telephone communication network;

in response to a detection of a first frame erasure, increasing a digital gain by a step-up value for said mobile telephone to close a forward link; and

reducing said digital gain to said mobile telephone in an exponential manner between said detection of said first frame erasure and a detection of a second frame erasure.

2. The method according to claim 1, wherein said reducing step further includes a step of continuously reducing said digital gain to said mobile telephone in an exponential manner until second frame erasure is reported.

3. The method according to claim 1, wherein said reducing step further includes a step of reducing said digital gain to said mobile telephone in an exponential manner and then in a linear manner.

4. The method according to claim 1, wherein said reducing step further includes a step of reducing said digital gain to said mobile telephone in an exponential manner and then in an inverse-exponential manner.

5. The method according to claim 1, wherein said mobile telephone communication network is a code-division multiple access mobile telephone communication network.

6. The method according to claim 1, wherein said increasing step further includes a step of increasing a digital gain to a second predetermined level.

7. A computer system for managing forward link power control within a code-division multiple access mobile telephone communication network, comprising:

means for detecting frame erasures for a mobile telephone within said mobile telephone communication network;

means for increasing a digital gain by a step-up value for said mobile telephone to close a forward link, in response to a detection of a first frame erasure; and

means for reducing said digital gain to said mobile telephone in an exponential manner between said detection of said first frame erasure and a detection of a second frame erasure.

8. The computer system according to claim 7, wherein said reducing means further includes a means for continuously reducing said digital gain to said mobile telephone in an exponential manner until second frame erasure is reported.

9. The computer system according to claim 7, wherein said reducing means further includes a means for reducing said digital gain to said mobile telephone in an exponential manner and then in a linear manner.

10. The computer system according to claim 7, wherein said reducing means further includes a means for reducing said digital gain to said mobile telephone in an exponential manner and then in an inverse-exponential manner.

11. The computer system according to claim 7, wherein said mobile telephone communication network is a code-division multiple access mobile telephone communication network.

12. The computer system according to claim 7, wherein said increasing means further includes a means for increasing a digital gain to a second predetermined level.

13. A computer program product residing on a computer usable medium for managing forward link power control within a code-division multiple access mobile telephone communication network, said computer program product comprising:

program code means for detecting frame erasures for a mobile telephone within said mobile telephone communication network;

program code means for increasing a digital gain by a step-up value for said mobile telephone to close a forward link, in response to a detection of a first frame erasure; and

program code means for reducing said digital gain to said mobile telephone in an exponential manner between said detection of said first frame erasure and a detection of a second frame erasure.

14. The computer program product according to claim 13, wherein said program code means for reducing further includes a program code means for continuously reducing said digital gain to said mobile telephone in an exponential manner until second frame erasure is reported.

15. The computer program product according to claim 13, wherein said program code means for reducing further includes a program code means for reducing said digital gain to said mobile telephone in an exponential manner and then in a linear manner.

16. The computer program product according to claim 13, wherein said program code means for reducing further includes a program code means for reducing said digital gain to said mobile telephone in an exponential manner and then in an inverse-exponential manner.

17. The computer program product according to claim 13, wherein said mobile telephone communication network is a code-division multiple access mobile telephone communication network.

18. The computer program product according to claim 13, wherein said program code means for increasing further includes a program code means for increasing a digital gain to a second predetermined level.