1. A method of communication, comprising:
determining a distance between a first access point and a second access point;
defining a search window based on the determined distance; and
searching for at least one signal from the first access point based on the defined search window.
2. The method of claim 1, wherein the definition of the search window comprises defining a center of the search window.
3. The method of claim 1, wherein the definition of the search window comprises adjusting timing of a center of the search window according to a propagation delay time associated with the determined distance.
4. The method of claim 1, further comprising acquiring timing from the second access point, wherein timing of the search window is based on the acquired timing.
5. The method of claim 1, wherein the determination of the distance comprises:
receiving a first indication of a location of the first access point;
receiving a second indication of a location of the second access point; and
calculating the distance based on the first and second indications.
6. The method of claim 1, wherein the determination of the distance comprises receiving an indication of the distance.
7. The method of claim 1, wherein the at least one signal comprises at least one pilot signal.
8. The method of claim 1, further comprising:
determining a location of an access terminal; and
determining whether to commence the search for the least one signal at the access terminal based on the determined location.
9. The method of claim 1, further comprising:
determining another distance between a third access point and the second access point;
defining the search window based on the determined another distance; and
searching for at least one other signal from the third access point based on the defined search window.
10. The method of claim 1, wherein:
the first access point comprises a femto node or a pico node; and
the second access point comprises a macro access point.
11. An apparatus for communication, comprising:
a distance determiner configured to determine a distance between a first access point and a second access point;
a search window definer configured to define a search window based on the determined distance; and
a receiver configured to search for at least one signal from the first access point based on the defined search window.
12. The apparatus of claim 11, wherein the definition of the search window comprises defining a center of the search window.
13. The apparatus of claim 11, wherein the definition of the search window comprises adjusting timing of a center of the search window according to a propagation delay time associated with the determined distance.
14. The apparatus of claim 11, further comprising a timing controller configured to acquire timing from the second access point, wherein timing of the search window is based on the acquired timing.
15. The apparatus of claim 11, wherein the determination of the distance comprises:
receiving a first indication of a location of the first access point;
receiving a second indication of a location of the second access point; and
calculating the distance based on the first and second indications.
16. The apparatus of claim 11, wherein the determination of the distance comprises receiving an indication of the distance.
17. The apparatus of claim 11, wherein the at least one signal comprises at least one pilot signal.
18. The apparatus of claim 11, further comprising:
a location determiner configured to determine a location of an access terminal; and
a search controller configured to determine whether to commence the search for the least one signal at the access terminal based on the determined location.
19. The apparatus of claim 11, wherein:
the distance determiner is further configured to determine another distance between a third access point and the second access point;
the search window definer is further configured to define the search window based on the determined another distance; and
the receiver is further configured to search for at least one other signal from the third access point based on the defined search window.
20. The apparatus of claim 11, wherein:
the first access point comprises a femto node or a pico node; and
the second access point comprises a macro access point.
21. An apparatus for communication, comprising:
means for determining a distance between a first access point and a second access point;
means for defining a search window based on the determined distance; and
means for searching for at least one signal from the first access point based on the defined search window.
22. The apparatus of claim 21, wherein the definition of the search window comprises defining a center of the search window.
23. The apparatus of claim 21, wherein the definition of the search window comprises adjusting timing of a center of the search window according to a propagation delay time associated with the determined distance.
24. The apparatus of claim 21, further comprising means for acquiring timing from the second access point, wherein timing of the search window is based on the acquired timing.
25. The apparatus of claim 21, wherein the determination of the distance comprises:
receiving a first indication of a location of the first access point;
receiving a second indication of a location of the second access point; and
calculating the distance based on the first and second indications.
26. The apparatus of claim 21, wherein the determination of the distance comprises receiving an indication of the distance.
27. The apparatus of claim 21, wherein the at least one signal comprises at least one pilot signal.
28. The apparatus of claim 21, further comprising:
means for determining a location of an access terminal; and
means for determining whether to commence the search for the least one signal at the access terminal based on the determined location.
29. The apparatus of claim 21, wherein:
the means for determining a distance is configured to determine another distance between a third access point and the second access point;
the means for defining a search window is configured to define the search window based on the determined another distance; and
the means for searching is configured to search for at least one other signal from the third access point based on the defined search window.
30. The apparatus of claim 21, wherein:
the first access point comprises a femto node or a pico node; and
the second access point comprises a macro access point.
31. A computer-program product, comprising:
computer-readable medium comprising codes for causing a computer to:
determine a distance between a first access point and a second access point;
define a search window based on the determined distance; and
search for at least one signal from the first access point based on the defined search window.
32. The computer-program product of claim 31, wherein the definition of the search window comprises defining a center of the search window.
33. The computer-program product of claim 31, wherein the definition of the search window comprises adjusting timing of a center of the search window according to a propagation delay time associated with the determined distance.
34. The computer-program product of claim 31, wherein:
the computer-readable medium further comprises codes for causing the computer to acquire timing from the second access point; and
timing of the search window is based on the acquired timing.
35. The computer-program product of claim 31, wherein the determination of the distance comprises:
receiving a first indication of a location of the first access point;
receiving a second indication of a location of the second access point; and
calculating the distance based on the first and second indications.
36. The computer-program product of claim 31, wherein the determination of the distance comprises receiving an indication of the distance.
37. The computer-program product of claim 31, wherein the at least one signal comprises at least one pilot signal.
38. The computer-program product of claim 31, wherein the computer-readable medium further comprises codes for causing the computer to:
determine a location of an access terminal; and
determine whether to commence the search for the least one signal at the access terminal based on the determined location.
39. The computer-program product of claim 31, wherein the computer-readable medium further comprises codes for causing the computer to:
determine another distance between a third access point and the second access point;
define the search window based on the determined another distance; and
search for at least one other signal from the third access point based on the defined search window.
40. The computer-program product of claim 31, wherein:
the first access point comprises a femto node or a pico node; and
the second access point comprises a macro access point.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A solid-state multi layer ceramic battery comprising at least one multi-layer cell structure wherein said multi-layer cell structure comprises:
a porous sponge ceramic anode layer comprising a plurality of pores formed within a ceramic material, at least a plurality of said pores being only partially filled and being coated with at least one anode active material;
a porous sponge ceramic cathode layer comprising a plurality of pores formed within a ceramic material, at least a plurality of said pores being only partially filled and being coated with at least one cathode active material; and
a dense ceramic electrolyte layer positioned between said porous sponge ceramic anode layer and said porous sponge ceramic cathode layer.
2. The multi layer ceramic battery of claim 1 wherein said ceramic layers are lithium ion-conducting solid ceramic electrolytes.
3. The multi layer ceramic battery of claim 1 wherein said at least one anode active materials comprises at least one material selected from the group consisting of lithium intercalating carbonaceous materials, lithium intercalating transition metal oxides, and lithium alloy materials.
4. The multi layer ceramic battery of claim 3 wherein said lithium intercalating carbonaceous material comprises at least one material selected from the group consisting of graphite, hard carbon, and carbon nano tubes.
5. The multi layer ceramic battery of claim 3 wherein said lithium intercalating transition metal oxide comprises at least one material selected from the group consisting of molybdenum oxide, tungsten oxide, ruthenium oxide, titanium oxides, indium tin oxide, lithium titanium oxide of the composition, LixTiO2 and lithium titanium oxide of the composition Li4Ti5O12, wherein the letter x is an integer number.
6. The multi layer ceramic battery of claim 3 wherein said lithium alloy materials comprise at least one material selected from the group consisting of LixSi, LiySn, and LizAl, wherein the letters x, y, and z are integer numbers.
7. The multi layer ceramic battery of claim 1 wherein said at least one cathode active material comprises at least one material selected from the group consisting of Li intercalating electrode materials, metal phosphates, lithium vanadium oxides having the formula LixV2O5, and lithium titanium oxides having the formula LiTiO2, wherein the letters x and y are integer numbers.
8. The multi layer ceramic battery of claim 7 wherein said Li intercalating electrode materials comprise at least one material selected from the group consisting of LiCoO2, LiNiO2, LiNixCoyO2, LiMn2O4, LiNi0.5Mn1.5O4, LiNixCoyMnzO2, and LiFePO4, wherein the letters x, y, and z are integer numbers.
9. The multi layer ceramic battery of claim 7 wherein said metal phosphates comprise at least one material selected from the group consisting of LiCoPO4 and LiNiPO4.
10. The multi layer ceramic battery of claim 2 wherein said lithium ion-conducting solid ceramic electrolytes comprise materials selected from the group consisting of lithium aluminum titanium phosphate (LATP) and its derivatives obtained by replacing some or all of the titanium with an element selected from the group consisting of silicon, germanium, zirconium, zinc, and lithium phosphorus oxynitride (LIPON).
11. The multi layer ceramic battery of claim 2 wherein at least one of said lithium ion-conducting solid ceramic electrolytes is lithium aluminum titanium phosphate (LATP).
12. The multi layer ceramic battery of claim 2 wherein at least one of said lithium ion-conducting solid ceramic electrolytes is lithium aluminum germanium phosphate (LAGP).
13. The multi layer ceramic battery of claim 1 further comprising a plurality of three-layer cell structures connected in series to form a higher voltage battery wherein at least two of said three-layer cells each comprise a porous sponge ceramic anode layer comprising at least one anode active material, a porous sponge ceramic cathode layer comprising at least one cathode active material, and a dense ceramic electrolyte layer positioned between said anode layer and said cathode layer.
14. The multi layer ceramic battery of claim 1 further comprising a plurality of three-layer cell structures connected in parallel to form a higher capacity battery wherein at least two of said three-layer cells each comprise a porous sponge ceramic anode layer comprising at least one anode active material, a porous sponge ceramic cathode layer comprising at least one cathode active material, and a dense ceramic electrolyte layer positioned between said anode layer and said cathode layer.
15. A solid-state multi layer ceramic battery comprising at least one multi-layer cell structure wherein said multi-layer cell structure comprises:
a porous sponge ceramic anode layer comprising at least one anode active material and a plurality of pores within the at least one anode active material, at least a plurality of said pores being only partially filled;
a porous sponge ceramic cathode layer comprising at least one cathode active material and a plurality of pores within the at least one cathode active material, at least a plurality of said pores being only partially filled; and
a dense ceramic electrolyte layer positioned between said porous sponge ceramic anode layer and said porous sponge ceramic cathode layer.
16. A solid-state multi layer ceramic battery comprising at least one multi-layer cell structure wherein said multi-layer cell structure comprises:
a porous sponge ceramic anode layer comprising at least one anode active material and a plurality of pores within the at least one anode active material, at least a plurality of said pores being only partially filled and having a coating which increases the electronic and ionic conductivity of the ceramic anode layer;
a porous sponge ceramic cathode layer comprising at least one cathode active material and a plurality of pores within the at least one cathode active material, at least a plurality of said pores being only partially filled and having a coating which increases the electronic and ionic conductivity of the ceramic cathode layer; and
a dense ceramic electrolyte layer positioned between said porous sponge ceramic anode layer and said porous sponge ceramic cathode layer.