What is claimed is:
1. An odd number factor frequency divider comprising
a plurality of master-slave D-type flip-flops connected in cascade and operating from the same clock signal, each master-slave D-type flip-flop formed of a master D-type latch and a slave D-type latch connected in cascade, with the master D-type latch synchronized with the clock signal and the slave D-type latch synchronized with the inverse of the clock signal,
a NOR gate for producing an output signal expressing the negated logic sum of a Q-terminal output from a master D-type latch of a final stage of said cascade-connected plurality of master-slave D-type flip-flops and a Q-terminal output from a slave D-type latch of said final stage,
means for applying said NOR gate output signal to a D input terminal of a master D-type latch of a master-slave D-type flip-flop of an initial stage of said cascade-connected plurality of master-slave D-type flip-flops, and
means for outputting said NOR gate output signal as a final output signal of said frequency divider.
2. A 90 phase splitter circuit comprising
a master-slave D-type flip-flop which operates from a clock signal constituted by a final output signal produced by an odd number factor frequency divider as claimed in claim 1,
means for connecting an inverting Q-terminal output from a slave D-type latch of said master-slave D-type flip-flop to a D input terminal of a master D-type latch thereof, and
means for outputting respective Q-terminal output signals from said master D-type latch and slave D-type latch, as final output signals of said 90 phase splitter circuit.
3. A frequency divider method comprising:
performing frequency division operation by supplying an externally derived signal, as a clock signal, to a circuit formed of a plurality of master-slave D-type flip-flops connected in cascade and each synchronized with the clock signal, each master-slave D-type flip-flop being formed of a master D-type latch and a slave D-type latch connected in cascade, with the master D-type latch synchronized with the clock signal and the slave D-type latch synchronized with the inverse of the clock signal,
deriving a negated logic sum signal by inputting to a NOR gate a Q-terminal output from a master D-type latch of a final stage of said cascade-connected plurality of master-slave D-type flip-flops and a Q-terminal output from a slave D-type latch of said final stage, and
applying said negated logic sum signal to a D input terminal of a master D-type latch of a master-slave D-type flip-flop of an initial stage of said cascade-connected plurality of master-slave D-type flip-flops, while outputting said negated logic sum signal as a final output signal.
4. A mobile radio apparatus incorporating a 90 phase splitter as claimed in claim 2.
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 wireless communications by a mobile station (MS), comprising:
receiving, from a base station (BS), a first message during a ranging procedure comprising information about initial allocated bandwidth for the MS;
requesting allocation of additional bandwidth;
receiving a message from the BS comprising information about additional bandwidth; and
transmitting at least a portion of a ranging request message using the additional bandwidth.
2. The method of claim 1, wherein the first message comprises a CDMA_Allocation_IE.
3. The method of claim 1, wherein:
requesting allocation of additional bandwidth comprises sending a fragmented ranging request message comprising a portion of the ranging request message and a request for the additional bandwidth; and
transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting a remaining portion of the ranging request message that was not sent in the fragmented ranging request message.
4. The method of claim 1, wherein:
requesting allocation of additional bandwidth comprises sending a bandwidth request for a total number of bytes needed to transmit the ranging request message; and
transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting the entire ranging request message in a single, unfragmented message.
5. The method of claim 1, wherein transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting a CINR value in a Mini-Feedback Extended Subheader.
6. A method for wireless communications by a base station (BS), comprising:
transmitting, during a ranging procedure, a message comprising information regarding initial bandwidth allocated to a mobile station (MS);
receiving, from the MS in the initial allocated bandwidth, a message requesting allocation of additional bandwidth;
transmitting a message to the MS with information regarding additional allocated bandwidth; and
receiving at least a portion of a ranging request message in the additional allocated bandwidth.
7. The method of claim 6, wherein the message comprising information regarding initial bandwidth allocated to the MS comprises a CDMA_Allocation_IE.
8. The method of claim 6, wherein:
the message requesting allocation of additional bandwidth comprises a fragmented portion of the ranging request message; and
receiving at least a portion of the ranging request message in the additional allocated bandwidth comprises receiving a remaining portion of the ranging request message in the additional allocated bandwidth.
9. The method of claim 6, wherein:
the message requesting allocation of additional bandwidth comprises a message requesting bandwidth for an entire portion of the ranging request; and
receiving at least a portion of the ranging request message in the additional allocated bandwidth comprises receiving the entire portion of the ranging request message in a single unfragmented message.
10. The method of claim 6, wherein:
receiving at least a portion of a ranging request message using the additional bandwidth comprises receiving a CINR value in a Mini-Feedback Extended Subheader; and
the method further comprises transmitting a ranging response message to the MS using a modulation and coding scheme adjusted based on the received CINR value.
11. An apparatus for wireless communications, comprising:
logic for receiving, from a base station (BS), a first message during a ranging procedure comprising information about initial allocated bandwidth for the apparatus;
logic for requesting allocation of additional bandwidth;
logic for receiving a message from the BS comprising information about additional bandwidth; and
logic for transmitting at least a portion of a ranging request message using the additional bandwidth.
12. The apparatus of claim 11, wherein the first message comprises a CDMA_Allocation_IE.
13. The apparatus of claim 11, wherein:
logic for requesting allocation of additional bandwidth comprises sending a fragmented ranging request message comprising a portion of the ranging request message and a request for the additional bandwidth; and
logic for transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting a remaining portion of the ranging request message that was not sent in the fragmented ranging request message.
14. The apparatus of claim 11, wherein:
logic for requesting allocation of additional bandwidth comprises sending a bandwidth request for a total number of bytes needed to transmit the ranging request message; and
logic for transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting the entire ranging request message in a single, unfragmented message.
15. The apparatus of claim 11, wherein the logic for transmitting at least a portion of a ranging request message using the additional bandwidth is configured to transmit a CINR value in a Mini-Feedback Extended Subheader.
16. A apparatus for wireless communications, comprising:
logic for transmitting, during a ranging procedure, a message comprising information regarding initial bandwidth allocated to a mobile station (MS);
logic for receiving, from the MS in the initial allocated bandwidth, a message requesting allocation of additional bandwidth;
logic for transmitting a message to the MS with information regarding additional allocated bandwidth; and
logic for receiving at least a portion of a ranging request message in the additional allocated bandwidth.
17. The apparatus of claim 16, wherein the message comprising information regarding initial bandwidth allocated to the MS comprises a CDMA_Allocation_IE.
18. The apparatus of claim 16, wherein:
the message requesting allocation of additional bandwidth comprises a fragmented portion of the ranging request message; and
the logic for receiving at least a portion of the ranging request message in the additional allocated bandwidth is configured to receive a remaining portion of the ranging request message in the additional allocated bandwidth.
19. The apparatus of claim 16, wherein:
the message requesting allocation of additional bandwidth comprises a message requesting bandwidth for an entire portion of the ranging request; and
the logic for receiving at least a portion of the ranging request message in the additional allocated bandwidth is configured to receive the entire portion of the ranging request message in a single unfragmented message.
20. The apparatus of claim 16, wherein:
the logic for receiving at least a portion of a ranging request message using the additional bandwidth is configured to receive a CINR value in a Mini-Feedback Extended Subheader; and
the apparatus further comprises logic for transmitting a ranging response message to the MS using a modulation and coding scheme adjusted based on the received CINR value.
21. An apparatus for wireless communications, comprising:
means for receiving, from a base station (BS), a first message during a ranging procedure comprising information about initial allocated bandwidth for the apparatus;
means for requesting allocation of additional bandwidth;
means for receiving a message from the BS comprising information about additional bandwidth; and
means for transmitting at least a portion of a ranging request message using the additional bandwidth.
22. The apparatus of claim 21, wherein the first message comprises a CDMA_Allocation_IE.
23. The apparatus of claim 21, wherein:
means for requesting allocation of additional bandwidth comprises sending a fragmented ranging request message comprising a portion of the ranging request message and a request for the additional bandwidth; and
means for transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting a remaining portion of the ranging request message that was not sent in the fragmented ranging request message.
24. The apparatus of claim 21, wherein:
means for requesting allocation of additional bandwidth comprises sending a bandwidth request for a total number of bytes needed to transmit the ranging request message; and
means for transmitting at least a portion of a ranging request message using the additional bandwidth comprises transmitting the entire ranging request message in a single, unfragmented message.
25. The apparatus of claim 21, wherein the means for transmitting at least a portion of a ranging request message using the additional bandwidth is configured to transmit a CINR value in a Mini-Feedback Extended Subheader.
26. A apparatus for wireless communications, comprising:
means for transmitting, during a ranging procedure, a message comprising information regarding initial bandwidth allocated to a mobile station (MS);
means for receiving, from the MS in the initial allocated bandwidth, a message requesting allocation of additional bandwidth;
means for transmitting a message to the MS with information regarding additional allocated bandwidth; and
means for receiving at least a portion of a ranging request message in the additional allocated bandwidth.
27. The apparatus of claim 26, wherein the message comprising information regarding initial bandwidth allocated to the MS comprises a CDMA_Allocation_IE.
28. The apparatus of claim 26, wherein:
the message requesting allocation of additional bandwidth comprises a fragmented portion of the ranging request message; and
the means for receiving at least a portion of the ranging request message in the additional allocated bandwidth is configured to receive a remaining portion of the ranging request message in the additional allocated bandwidth.
29. The apparatus of claim 26, wherein:
the message requesting allocation of additional bandwidth comprises a message requesting bandwidth for an entire portion of the ranging request; and
the means for receiving at least a portion of the ranging request message in the additional allocated bandwidth is configured to receive the entire portion of the ranging request message in a single unfragmented message.
30. The apparatus of claim 26, wherein:
the means for receiving at least a portion of a ranging request message using the additional bandwidth is configured to receive a CINR value in a Mini-Feedback Extended Subheader; and
the apparatus further comprises means for transmitting a ranging response message to the MS using a modulation and coding scheme adjusted based on the received CINR value.
31. A computer program product for wireless communications by a mobile station (MS), the computer program product comprising a computer-readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
instructions for receiving, from a base station (BS), a first message during a ranging procedure comprising information about initial allocated bandwidth for the MS;
instructions for requesting allocation of additional bandwidth;
instructions for receiving a message from the BS comprising information about additional bandwidth; and
instructions for transmitting at least a portion of a ranging request message using the additional bandwidth.
32. The computer program product of claim 31, wherein the first message comprises a CDMA_Allocation_IE.
33. The computer program product of claim 31, wherein:
the instructions for requesting allocation of additional bandwidth comprise instructions for sending a fragmented ranging request message comprising a portion of the ranging request message and a request for the additional bandwidth; and
the instructions for transmitting at least a portion of a ranging request message using the additional bandwidth comprise instructions for transmitting a remaining portion of the ranging request message that was not sent in the fragmented ranging request message.
34. The computer program product of claim 31, wherein:
the instructions for requesting allocation of additional bandwidth comprise instructions for sending a bandwidth request for a total number of bytes needed to transmit the ranging request message; and
the instructions for transmitting at least a portion of a ranging request message using the additional bandwidth comprise instructions for transmitting the entire ranging request message in a single, unfragmented message.
35. The computer program product of claim 31, wherein the instructions for transmitting at least a portion of a ranging request message using the additional bandwidth comprise instructions for transmitting a CINR value in a Mini-Feedback Extended Subheader.
36. A computer program product for wireless communications, the computer program product comprising a computer-readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising, comprising:
instructions for transmitting, during a ranging procedure, a message comprising information regarding initial bandwidth allocated to a mobile station (MS);
instructions for receiving, from the MS in the initial allocated bandwidth, a message requesting allocation of additional bandwidth;
instructions for transmitting a message to the MS with information regarding additional allocated bandwidth; and
instructions for receiving at least a portion of a ranging request message in the additional allocated bandwidth.
37. The computer program product of claim 36, wherein the message comprising information regarding initial bandwidth allocated to the MS comprises a CDMA_Allocation_IE.
38. The computer program product of claim 36, wherein:
the message requesting allocation of additional bandwidth comprises a fragmented portion of the ranging request message; and
the instructions for receiving at least a portion of the ranging request message in the additional allocated bandwidth comprise instructions for receiving a remaining portion of the ranging request message in the additional allocated bandwidth.
39. The computer program product of claim 36, wherein:
the message requesting allocation of additional bandwidth comprises a message requesting bandwidth for an entire portion of the ranging request; and
the instructions for receiving at least a portion of the ranging request message in the additional allocated bandwidth comprise instructions for receiving the entire portion of the ranging request message in a single unfragmented message.
40. The computer program product of claim 36, wherein:
the instructions for receiving at least a portion of a ranging request message using the additional bandwidth comprise instructions for receiving a CINR value in a Mini-Feedback Extended Subheader; and
the instructions further comprise instructions for transmitting a ranging response message to the MS using a modulation and coding scheme adjusted based on the received CINR value.