What is claimed is:
1. A damper comprising:
a pressure tube forming a working chamber;
a piston disposed within said working chamber, said piston dividing said working chamber into an upper working chamber and a lower working chamber;
a first flow path extending through said piston to provide communication between said upper working chamber and said lower working chamber;
a valve body disposed between said working chamber and a fluid chamber; and
a second flow extending through said valve body to provide communication between said working chamber and said fluid chamber.
2. The damper according to claim 1, wherein said valve body is attached to said pressure tube, said valve body and said pressure tube defining said fluid chamber.
3. The damper according to claim 2, wherein said fluid chamber is in communication with said lower working chamber.
4. The damper according to claim 1, wherein said valve body is attached to said pressure tube, said fluid chamber being disposed within said pressure tube.
5. The damper according to claim 4, wherein said fluid chamber is in communication with said lower working chamber.
6. The damper according to claim 1, further comprising a compression valve assembly attached to said piston, said compression valve assembly prohibiting fluid flow from said upper working chamber to said lower working chamber.
7. The damper according to claim 6, further comprising an extension valve assembly attached to said piston, said extension valve assembly prohibiting fluid flow from said lower working chamber to said upper working chamber.
8. The damper according to claim 1, wherein said first flow path is an open flow path.
9. The damper according to claim 8, wherein said second flow path is an open flow path.
10. The damper according to claim 1, wherein said second flow path is an open flow path.
11. The damper according to claim 1, further comprising a chamber tube disposed around said pressure tube, said fluid chamber being disposed between said pressure tube and said chamber tube.
12. The damper according to claim 11, wherein said valve body is attached to said pressure tube.
13. The damper according to claim 12, wherein said fluid chamber is in communication with said lower working chamber.
14. The damper according to claim 11, further comprising a compression valve assembly attached to said piston, said compression valve assembly prohibiting fluid flow from said upper working chamber to said lower working chamber.
15. The damper according to claim 14, further comprising an extension valve assembly attached to said piston, said extension valve assembly prohibiting fluid flow from said lower working chamber to said upper working chamber.
16. The damper according to claim 11, wherein said first flow path is an open flow path.
17. The damper according to claim 16, wherein said second flow path is an open flow path.
18. The damper according to claim 11, wherein said second flow path is an open flow path.
19. The damper according to claim 1, further comprising an air spring assembly attached to said damper, said air spring assembly defining said fluid chamber.
20. The damper according to claim 19, wherein said valve body is attached to said pressure tube.
21. The damper according to claim 20, wherein said fluid chamber is in communication with said upper working chamber.
22. The damper according to claim 19, wherein said fluid chamber is in communication with said upper working chamber.
23. The damper according to claim 19, further comprising a compression valve assembly attached to said piston, said compression valve assembly prohibiting fluid flow from said upper working chamber to said lower working chamber.
24. The damper according to claim 23, further comprising an extension valve assembly attached to said piston, said extension valve assembly prohibiting fluid flow from said lower working chamber to said upper working chamber.
25. The damper according to claim 19, wherein said first flow path is an open flow path.
26. The damper according to claim 25, wherein said second flow path is an open flow path.
27. The damper according to claim 19, wherein said second flow path is an open flow path.
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 detecting delayed Radio Link Protocol frames, and preventing the transmission of unnecessary Negative Acknowledgement messages and data frame retransmissions, comprising the steps of:
buffering an unsequentially received Radio Link Protocol frame received on a first channel;
withholding the transmission of a Negative Acknowledgement message for a delayed Radio Link Protocol frame until the delayed Radio Link Protocol frame has been missing longer than a predefined time period; and
monitoring the first channel and a second channel for the delayed Radio Link Protocol frame, wherein the first and second channel are code-multiplexed to allow concurrent transmission of the unsequentially received Radio Link Protocol frame and the delayed Radio Link Protocol frame, and further wherein the second channel is configured to allow transmission of Radio Link Protocol frames within physical layer frames of different lengths than that of physical layer frames of the first channel.
2. The method of claim 1 further comprising the step of assigning a timercounter to the buffered Radio Link Protocol frame for determining the necessity of transmitting a Negative Acknowledgment message for an unreceived Radio Link Protocol frame.
3. The method of claim 1 further comprising the steps of:
buffering a Negative Acknowledgement message for an unreceived Radio Link Protocol frame; and
assigning a timercounter to the buffered Negative Acknowledgement message to prevent unnecessary transmission of the Negative Acknowledgement message if the unreceived Radio Link Protocol frame arrives before the expiration of a predefined time period.
4. The method of claim 1 further comprising the step of delaying updating the expected sequence number until a delayed Radio Link Protocol frame has been received.
5. A wireless communications device configured to detect delayed Radio Link Protocol frames, and prevent the transmission of unnecessary Negative Acknowledgement messages and data frame transmissions, comprising:
a processor; and
a storage medium coupled to the processor and containing a set of instructions executable by the processor to buffer an unsequentially received Radio Link Protocol frame received on a first channel;
withhold the transmission of a Negative Acknowledgement message for a delayed Radio Link Protocol frame until the delayed Radio Link Protocol frame has been missing longer than a predefined time period; and
monitoring the first channel and a second channel for the delayed Radio Link Protocol frame, wherein the first and second channel are code-multiplexed to allow concurrent transmission of the unsequentially received Radio Link Protocol frame and the delayed Radio Link Protocol frame and further wherein the second channel is configured to allow transmission of Radio Link Protocol frames within physical layer frames of a different length than that of physical layer frames of the first channel.
6. The wireless communications device or claim 5, wherein:
the set of instructions is further executable by the processor to assign a timercounter to the buffered Radio Link Protocol frame to determine the necessity of transmitting a Negative Acknowledgement message for an unreceived Radio Link Protocol frame.
7. The wireless communications device of claim 5, wherein:
the set of instructions is further executable by the processor to buffer a Negative Acknowledgement message for an unreceived Radio Link Protocol frame; and
assign a timercounter to the buffered Negative Acknowledgement message to prevent unnecessary transmission of the Negative Acknowledgement message if the unreceived Radio Link Protocol frame arrives before the expiration of a predefined time period.
8. The wireless communications device of claim 5, wherein:
the set of instructions is further executable by the processor to delay updating the expected sequence number until a delayed Radio Link Protocol frame has been received.
9. The wireless communications device of claim 5, wherein:
the device is a base station transceiver.
10. The wireless communications device of claim 5, wherein:
the device is a mobile telephone.
11. The wireless communications device of claim 5, wherein:
the device is a data terminal.
12. A wireless apparatus for detecting delayed Radio Link Protocol frames, and preventing the transmission of unnecessary Negative Acknowledgement messages and data frame retransmissions, comprising:
means for buffering an unsequentially received Radio Link Protocol frame received on a first channel;
means for withholding the transmission of a Negative Acknowledgement message for a delayed Radio Link Protocol frame until the delayed Radio Link Protocol frame has been missing longer than a predefined time period; and
monitoring the first channel and a second channel for the delayed Radio Link Protocol frame, wherein the first and second channel are code-multiplexed to allow concurrent transmission of frames the unsequentially received Radio Link Protocol frame and the delayed Radio Link Protocol frame, and further wherein the second channel is configured to allow transmission of Radio Link Protocol frames within physical layer frames of a different length than that of physical layer frames of the first channel.
13. The wireless apparatus of claim 12 further comprising:
means for assigning a timercounter to the buffered Radio Link Protocol frame for determining the necessity of transmitting a Negative Acknowledgement message for an unreceived Radio Link Protocol frame.