1. An electrical card connector comprising:
an insulative housing including a card receiving space and an upper wall defining a row of slots extending through an inner side surface thereof;
a terminal module slidably assembled to the housing, the terminal module including an insulative casing and a plurality of first and second terminals, the first and second terminals respectively including first and second mounting portions fixed in the casing, first and second body portions respectively extending from the first and second mounting portions, and first and second contacting portions, the first and second body portion being alternately held in corresponding slots of the upper wall, the first and second contacting portions respectively extending from the first and second body portions and being arranged in two lines in the card receiving space; wherein
the upper wall defines a front, middle and rear cutouts, thereby forming separate front and rear crossrails between adjacent two cutouts.
2. The electrical card connector according to claim 1, wherein the first terminal has a relatively longer length than that of the second terminal.
3. The electrical card connector according to claim 1, wherein the slot has a substantially T-shaped cross-section.
4. The electrical card connector according to claim 3, wherein each slot includes a pair of grooves extending laterally from inner side surfaces thereof.
5. The electrical card connector according to claim 4, wherein each first body portion is substantially flat and has first front and rear enlarged portions, the first front enlarged portion received in the grooves of a corresponding slot of the front crossrail, the first rear enlarged portion received in the grooves of a corresponding slot of the rear crossrail.
6. The electrical card connector according to claim 4, wherein each second body portion is substantially flat and has a second enlarged portion received in the grooves of corresponding slot of the rear crossrail.
7. The electrical card connector according to claim 1, wherein the housing includes a pair of sidewalls, each sidewall providing an elastic flap having an outwardly projecting locking portion, the flaps being movable sidewardly under an external force.
8. The electrical card connector according to claim 7, wherein each sidewall of the housing defines a gap from the flap.
9. The electrical card connector according to claim 7, wherein the locking portion of the flap has a substantially trapeziform cross-section and includes an inclined top surface and a bottom surface perpendicular to an outer side surface of the flap.
10. The electrical card connector according to claim 7, further including a metal shell substantially covering the housing, the shell including a pair of side plates each defining a locking hole engaging with the locking portion of the flap of the housing.
11. The electrical card connector according to claim 1, wherein the insulative casing defines a plurality of comb passages, the first and second terminals being alternately received in corresponding comb passages.
12. The electrical card connector according to claim 11, wherein the housing includes a pair of ribs projecting inwardly from opposite sides thereof, and wherein the casing defines a pair of guiding slots in opposite sides thereof engaged with the corresponding ribs of the housing.
13. An electrical card connector comprising:
an insulative housing including a card receiving space and an upper wall defining a row of slots extending through an inner side surface thereof;
a terminal module slidably assembled to the housing, the terminal module including an insulative casing and a plurality of first and second terminals, the first and second terminals respectively including first and second mounting portions fixed in the casing, first and second body portions respectively extending from the first and second mounting portions, and first and second contacting portions, the first and second body portion being alternately held in corresponding slots of the upper wall, the first and second contacting portions respectively extending from the first and second body portions and being arranged in two lines in the card receiving space; wherein the insulating casing comprises a first horizontal plate, a second horizontal plate and a vertical plate connecting rear portions of the first and second horizontal plates.
14. The electrical card connector according to claim 13, wherein the first and second body portions are received in the vertical plate, and wherein the first and second mounting portions are held in a plurality of combo passages disposed on lower outside of the vertical plate adjacent to the first horizontal plate.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. An article comprising at least one storage medium containing instructions that when executed cause wireless access equipment in a cell segment to:
measure activity on reverse links between mobile stations in the cell segment and the wireless access equipment;
determine a threshold capacity of the reverse links in response to detecting the activity reaching a predefined threshold level; and
subsequently, during operation of the wireless access equipment, using the threshold capacity to set one or more indications of whether to increase or decrease activity on the reverse links.
2. The article of claim 1, wherein the instructions when executed cause the wireless access equipment to communicate the one or more indications to the mobile stations.
3. The article of claim 2, wherein the instructions when executed cause the wireless access equipment to communicate the one or more indications by communicating a reverse activity bit to the mobile stations, the reverse activity bit defined by a code-division multiple access (CDMA) high rate packet data (HRPD) protocol.
4. The article of claim 3, wherein the instructions when executed cause the wireless access equipment to set the reverse activity bit to a first state to indicate that activity on the reverse links is to be increased, and to set the reverse activity bit to a second state to indicate that activity on the reverse links is to be decreased.
5. The article of claim 1, wherein the instructions when executed cause the wireless access equipment to communicate the one or more indications to the mobile stations, the one or more indications defined by one of a 1EV-DO protocol, 1EV-DV protocol, UMTS protocol, and multi-carrier data-voice protocol.
6. The article of claim 1, wherein the instructions when executed cause the wireless access equipment to perform the measuring and determining during a calibration phase.
7. The article of claim 6, wherein the instructions when executed cause the wireless access equipment to perform the operation substantially continuously but perform the calibration phase less frequently.
8. The article of claim 1, wherein the instructions when executed cause the wireless access equipment to use the threshold capacity to set the one or more indications by:
calculating a sum of data rates of the reverse link;
comparing the sum to the threshold capacity;
setting the one or more indications to increase activity in response to the sum being less than the threshold capacity; and
setting the one or more indications to decrease activity in response to the sum being greater than the threshold capacity.
9. The article of claim 1, wherein the instructions when executed cause the wireless access equipment to measure activity by measuring an amount of noise received by the wireless access equipment.
10. The article of claim 9, wherein the instructions when executed cause the wireless access equipment to determine the threshold capacity by determining a sum of the data rates on the reverse links at the time that the noise has reached the predefined threshold level.
11. The article of claim 10, wherein the instructions when executed cause the wireless access equipment to receive an indicator of data rate of each reverse link from a corresponding wireless access equipment.
12. The article of claim 10, wherein the instructions when executed cause the wireless access equipment to compute a sum of data rates of forward links between the mobile stations and the wireless access equipment,
wherein determining the sum of the data rates on the reverse links is based on the computed sum of data rates of the forward links.
13. A method of controlling data rates in a wireless communications system, comprising:
determining a condition of forward links between mobile stations and wireless access equipment;
computing a capacity of reverse links between the mobile stations and the wireless access equipment based on the condition of the forward links; and
indicating to at least one of the mobile stations whether a data rate on the reverse link between the at least one mobile station and the wireless access equipment is to be increased or decreased,
wherein the indicating is based on the computed capacity of the reverse links.
14. The method of claim 13, wherein determining the condition of forward links comprises determining based on data rates of the corresponding forward links.
15. The method of claim 14, further comprising correlating the data rates of the forward links to data rates of the reverse links,
wherein computing the capacity of the reverse links is based on the correlation of the data rates of the forward links and data rates of the reverse links.
16. The method of claim 15, wherein correlating the data rates comprises:
measuring noise of the reverse links while traffic on the reverse links is increased until a threshold noise level is reached; and
computing the capacity of the reverse links based on a sum of data rates on the forward links at a time when the noise on the reverse links has reached the threshold noise level.
17. The method of claim 16, wherein the wireless communications system includes a code-division multiple access (CDMA) high rate packet data (HRPD) wireless system, the method further comprising: and
calculating a sum of data rate control (DRC) values, the DRC values representing the data rates on the forward links.
18. The method of claim 17, wherein calculating the sum of DRC values comprises calculating the sum of a log of each DRC value.
19. The method of claim 13, wherein determining the condition of the forward links comprises determining the condition of CDMA HRPD forward links, and wherein computing the capacity of reverse links comprises computing the capacity of CDMA HRPD reverse links.
20. The method of claim 13, further comprising performing the determining and computing during a calibration phase and the indicating during an operation phase.
21. The method of claim 20, wherein the calibration phase is performed less frequently than the operation phase.
22. The method of claim 20, further comprising, during the operation phase:
calculating a sum of data rates of the reverse links indicated by mobile stations; and
comparing the calculated sum to the computed capacity of reverse links.
23. The method of claim 22, wherein indicating whether the data rate on the reverse link is to be increased or decreased comprises communicating an indicator to the at least one mobile station,
the indicator having one of two states.
24. The method of claim 22, wherein the wireless communications system includes a CDMA HRPD wireless system,
wherein calculating the sum of data rates of the reverse links comprises calculating the sum of reverse rate indicator (RRI) values.
25. The method of claim 13, wherein determining the condition of forward links between mobile stations and wireless access equipment comprises determining the condition of forward links defined by one of a 1EV-DO protocol, 1EV-DV protocol, UMTS protocol, and multi-carrier data-voice protocol.
26. A system comprising:
an interface adapted to communicate over wireless forward links and wireless reverse links with mobile stations; and
a controller adapted to compute a capacity of the reverse links, to monitor a level of usage of the reverse links, and to communicate one or more indicators to the mobile stations to indicate whether data rates on the reverse links are to be increased or decreased based on a comparison of the usage of the reverse links and the computed capacity.
27. The system of claim 26, wherein the controller is adapted to communicate the one or more indicators by communicating a reverse activity bit to the mobile stations, the reverse activity bit defined by a code-division multiple access (CDMA) high rate packet data (HRPD) protocol, the reverse activity bit set to a first state to indicate that activity on the reverse links is to be increased, and set to a second state to indicate that activity on the reverse links is to be decreased.
28. The system of claim 26, wherein the controller is adapted to compute the capacity of the reverse links by computing a sum of data rates of forward links between the mobile stations and the system.