1. A method for managing an active set of radio channels used in soft hand-off processing, the method carried out in a remote unit having an adaptive antenna, the method comprising the steps of:
determining an initial list of members for the active set by detecting an existence of at least two pilot channel signals in a vicinity of the remote unit;
making a change in an operating state of the adaptive antenna; and
requalifying the active set with the changed adaptive antenna operating state.
2. A method as in claim 1 wherein the adaptive antenna is a directional antenna array.
3. A method as in claim 2 wherein the adaptive antenna is a phased array.
4. A method as in claim 3 wherein the adaptive antenna uses multiple receivers and signal combiners.
5. A method as in claim 1 additionally comprising the steps of:
determining a reliability parameter for selecting members of the active set;
designating a selected one of the reliability parameters as sufficient to maintain a reliable connection; and
upon determining that more than one active set member is a reliable connection, changing operational state of the adaptive antenna to reduce a number of radio channel signals received.
6. A method as in claim 5 wherein the measure of reliability is selected from a group consisting of received signal strength indication, correlated power, and measurements of signal to noise ratio.
7. A method as in claim 1 additionally comprising the step of, when a number of members of the active set is less than a desired number:
adjusting the antenna state to capture additional radio signals to be possible members of the active set; and
requalifying the active set members.
8. A method as in claim 1 additionally comprising the step of, if a member of the active set is not reliable:
selecting a new setting for the adaptive antenna; and
requalifying active set members.
9. A method as in claim 1 additionally comprising the step of, when members of the active set are deemed unreliable:
steering the antenna such that additional radio signals are detected.
10. A method as in claim 1 additionally comprising the step of:
if candidate pilot channel signals are determined unreliable but of sufficient quality, periodically selecting a new antenna operating state such that criteria for receiving at least one radio signal is not satisfied.
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 method for unlocking a screen, comprising steps of:
obtaining a starting position of a touch point on a screen;
determining a position of an unlocking reference point;
obtaining, while the touch point moves on the screen, a current position of the touch point; and
calculating an angle between the starting position of the touch point and the current position of the touch point with the unlocking reference point as a vertex of the angle, and unlocking the screen when the angle is larger than a pre-set unlocking angle.
2. The method according to claim 1, wherein the step of determining a position of an unlocking reference point comprises:
selecting the unlocking reference point as any point with a distance to the starting position of the touch point being equal to a pre-set standard length in the screen.
3. The method according to claim 1, wherein the step of determining a position of an unlocking reference point comprises:
dividing the screen into at least one area according to a pre-set rule;
generating a benchmark point in each area resulting from dividing the screen; and
selecting a benchmark point meeting a pre-set standard as the unlocking reference point according to the starting position of the touch point.
4. The method according to claim 3, wherein the step of selecting a benchmark point meeting a pre-set standard as the unlocking reference point comprises:
determining in the screen a local area containing the starting position of the touch point; and
selecting the benchmark point of the local area as the unlocking reference point.
5. The method according to claim 3, wherein the step of selecting a benchmark point meeting a pre-set standard as the unlocking reference point comprises:
setting a standard distance between the starting position of the touch point and a benchmark point;
calculating a distance between the starting position of the touch point and a benchmark point of a local area containing the starting position of the touch point;
comparing the calculated distance with the standard distance;
selecting, when the calculated distance is larger than the standard distance, the benchmark point of the local area as the unlocking reference point; or
selecting, when the calculated distance is smaller than the standard distance, a benchmark point in an area nearest to the starting position of the touch point other than the local area as the unlocking reference point.
6. The method according to claim 1, further comprising: after the position of the unlocking reference point is determined,
displaying, on the screen, an unlocking starting line starting from the unlocking reference point and passing through the starting position of the touch point.
7. The method according to claim 6, further comprising:
displaying, on the screen, an unlocking target line starting from the unlocking reference point and forming an angle equal to the pre-set unlocking angle with the unlocking starting line.
8. The method according to claim 7, further comprising:
displaying, on the screen, a sector centred on the unlocking reference point with a radius of a pre-set length,
wherein the sector is defined on one side by the unlocking starting line and on the other side by a straight line defined by the unlocking reference point and the current position of the touch point.
9. A system for unlocking a screen, comprising a screen detecting module, a reference point determining module, an angle calculating module, and an unlocking module, wherein
the screen detecting module is configured to detect a position of a touch point on a screen, and send the position of the touch point to the angle calculating module;
the reference point determining module is configured to determine a position of an unlocking reference point, and send the position of the unlocking reference point to the angle calculating module;
the angle calculating module is configured to calculate an angle between a starting position of the touch point and a current position of the touch point with the unlocking reference point as a vertex of the angle, and send the calculated angle to the unlocking module; and
the unlocking module is configured to compare the calculated angle with a pre-set unlocking angle, and unlock the screen when the angle is larger than the pre-set unlocking angle.
10. The system according to claim 9, wherein the reference point determining module is configured to select the unlocking reference point as any point with a distance to the starting position of the touch point being equal to a pre-set standard length in the screen.
11. The system according to claim 9, wherein the reference point determining module comprises:
an area dividing module, configured to divide the screen into at least one area according to a pre-set rule;
a benchmark point generating module, configured to generate a benchmark point in each area resulting from dividing the screen by the area dividing module; and
a reference point selecting module, configured to select a benchmark point meeting a pre-set standard as the unlocking reference point according to the starting position of the touch point.
12. The system according to claim 11, wherein the reference point selecting module comprises a distance setting module, a distance calculating module, and a distance comparing module, wherein
the distance setting module is configured to set a standard distance between the starting position of the touch point and a benchmark point, and send the standard distance to the distance comparing module;
the distance calculating module is configured to calculate a distance between the starting position of the touch point and a benchmark point of a local area containing the starting position of the touch point, and send the calculated distance to the distance comparing module; and
the distance comparing module is configured to compare the calculated distance with the standard distance; and
select, when the calculated distance is larger than the standard distance, the benchmark point of the local area as the unlocking reference point; or select, when the calculated distance is smaller than the standard distance, a benchmark point in an area nearest to the starting position of the touch point other than the local area as the unlocking reference point.
13. The system according to claim 9, further comprising:
an angle setting module, configured to set the pre-set unlocking angle, and provide the pre-set unlocking angle to the unlocking module.
14. The system according to claim 9, further comprising:
an unlocking displaying module, configured to display, on the screen, an unlocking starting line starting from the unlocking reference point and passing through the starting position of the touch point.
15. The system according to claim 14, wherein the unlocking displaying module is further configured to display, on the screen, an unlocking target line starting from the unlocking reference point and forming an angle equal to the pre-set unlocking angle with the unlocking starting line.
16. The system according to claim 15, wherein the unlocking displaying module is further configured to display, on the screen, a sector centred on the unlocking reference point with a radius of a pre-set length,
wherein the sector is defined on one side by the unlocking starting line and on the other side by a straight line defined by the unlocking reference point and the current position of the touch point.
17. The method according to claim 2, further comprising: after the position of the unlocking reference point is determined,
displaying, on the screen, an unlocking starting line starting from the unlocking reference point and passing through the starting position of the touch point.
18. The method according to claim 3, further comprising: after the position of the unlocking reference point is determined,
displaying, on the screen, an unlocking starting line starting from the unlocking reference point and passing through the starting position of the touch point.
19. The method according to claim 18, further comprising:
displaying, on the screen, an unlocking target line starting from the unlocking reference point and forming an angle equal to the pre-set unlocking angle with the unlocking starting line.
20. The method according to claim 19, further comprising:
displaying, on the screen, a sector centred on the unlocking reference point with a radius of a pre-set length,
wherein the sector is defined on one side by the unlocking starting line and on the other side by a straight line defined by the unlocking reference point and the current position of the touch point.