ADAPTIVE WAITING TIME IN MULTIPLE RECEIVE DIVERSITY CONTROL FOR TD-SCDMA

• US 20150280803A1
• Filed: 06/18/2013
• Published: 10/01/2015
• Est. Priority Date: 11/08/2012
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Chen, Jinghu, Zhao, Wanlun, Shen, Qiang, Kang, Insung, Hou, Jilei
• Application Number:
  US14/433,596
• Publication Number:
  US 20150280803A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0871 using different reception schemes, at least one of them being a diversity reception scheme
• CPC Class Codes: H04B 7/0877 switching off a diversity branch, e.g. to save power
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04W 52/0232 according to average transmission signal activity
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The apparatus switches from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state. The condition may be a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna. The apparatus also periodically switches back to the RxD on state to determine if the condition remains in the certain state. The time period between entries into the RxD on state is dynamically adjusted as a function of prior conditions.

Claims

1. A method of wireless communication, comprising:

switching from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state; and

periodically switching back to the RxD on state to determine if the condition remains in the certain state , wherein a time period between entries into the RxD on state is dynamically adjusted as a function of previously determined conditions.

2. The method of claim 1, wherein the condition comprises one or more of a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna.

3. The method of claim 1, wherein the certain state is either one of a true state or a false state.

4. The method of claim 1, wherein the function of the previously determined conditions comprises a count of prior conditions in the certain state.

5. The method of claim 4, wherein the time period changes as a function of a changing count of prior conditions in the certain state.

6. The method of claim 4, wherein the count of prior conditions in the certain state has a minimum preset value and a maximum preset value.

7. An apparatus for wireless communication, comprising:

means for switching from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state; and

means for periodically switching back to the RxD on state to determine if the condition remains in the certain state, wherein the time period between entries into the RxD on state is dynamically adjusted as a function of prior conditions.

8. The apparatus of claim 7, wherein the condition comprises one or more of a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna.

9. The apparatus of claim 7, wherein the certain state is either one of a true state or a false state.

10. The apparatus of claim 7, wherein the function of the previously determined conditions comprises a count of prior conditions in the certain state.

11. The apparatus of claim 10, wherein the time period changes as a function of a changing count of prior conditions in the certain state.

12. The apparatus of claim 10, wherein the count of prior conditions in the certain state has a minimum preset value and a maximum preset value.

13. An apparatus for wireless communication, comprising:

at least one processor; and

a memory coupled to the at least one processor,

wherein the at least one processor is configured to;

switch from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state; and

periodically switch back to the RxD on state to determine if the condition remains in the certain state, wherein the time period between entries into the RxD on state is dynamically adjusted as a function of prior conditions

14. The apparatus of claim 13, wherein the condition comprises one or more of a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna.

15. The apparatus of claim 13, wherein the certain state is either one of a true state or a false state.

16. The apparatus of claim 13, wherein the function of the previously determined conditions comprises a count of prior conditions in the certain state.

17. The apparatus of claim 16, wherein the time period changes as a function of a changing count of prior conditions in the certain state.

18. The apparatus of claim 16, wherein the count of prior conditions in the certain state has a minimum preset value and a maximum preset value.

19. A computer program product, comprising:

a computer-readable medium comprising code for;

switching from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state; and

periodically switching back to the RxD on state to determine if the condition remains in the certain state, wherein the time period between entries into the RxD on state is dynamically adjusted as a function of prior conditions.

20. The product of claim 19, wherein the condition comprises one or more of a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna.

21. The product of claim 19, wherein the certain state is either one of a true state or a false state.

22. The product of claim 19, wherein the function of the previously determined conditions comprises a count of prior conditions in the certain state.

23. The product of claim 22, wherein the time period changes as a function of a changing count of prior conditions in the certain state.

24. The product of claim 22, wherein the count of prior conditions in the certain state has a minimum preset value and a maximum preset value.