Code channel management in a wireless communications system
First Claim
1. A method of communications, comprising:
- allocating a first code to a first subscriber station;
assigning a first sub-code derived from the first code to support a dedicated channel to the first subscriber station;
assigning a second code to support a dedicated channel to a second subscriber station; and
assigning a second sub-code derived from the first code to support a supplemental channel to the second subscriber station,wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to the first code, and wherein the first subscriber station is in soft handoff and the second subscriber station is not in soft handoff.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and techniques are disclosed relating to communications. The systems and techniques involve separating a plurality of subscriber stations into first and second groups, a different first code from a plurality of orthogonal codes to each of the subscriber stations in the first group, assigning each of the subscriber stations in the first group either its allocated first code or a first sub-code derived from its allocated first code, to support a dedicated channel, and assigning a second sub-code derived from one of the first codes to support a communications channel to one of the subscriber stations in the second group. A second code may be used to support a dedicated channel to the second subscriber station.
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Citations
27 Claims
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1. A method of communications, comprising:
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allocating a first code to a first subscriber station; assigning a first sub-code derived from the first code to support a dedicated channel to the first subscriber station; assigning a second code to support a dedicated channel to a second subscriber station; and assigning a second sub-code derived from the first code to support a supplemental channel to the second subscriber station, wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to the first code, and wherein the first subscriber station is in soft handoff and the second subscriber station is not in soft handoff. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of communications, comprising:
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separating a plurality of subscriber stations into first and second groups; allocating a different first code from a plurality of orthogonal codes to each of the subscriber stations in the first group; assigning each of the subscriber stations in the first group either its allocated first code or a first sub-code derived from its allocated first code, to support a dedicated channel; and assigning a second sub-code derived from one of the first codes to support a communications channel to one of the subscriber stations in the second group, wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to their respective first code, and wherein the subscriber stations in the first group are in soft handoff and the subscriber stations in the second group are not in soft handoff. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A communications station, comprising:
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a processor configured to allocate a first code to a first subscriber station, assign a first sub-code derived from the first code to support a dedicated channel to the first subscriber station, assign a second code to support a dedicated channel to a second subscriber station, and assign a second sub-code derived from the first code to support a supplemental channel to the second subscriber station, wherein the first and second sub-codes are restricted to lower data-rate transmission as compared to the first code, and wherein the processor is further configured to receive information indicating that the first subscriber station is in soft handoff and that the second subscriber station is not in soft handoff, the allocation of the first code to a first subscriber station being based on the first subscriber station being in soft handoff, and the assignment of the second code to support the dedicated channel to a second subscriber station is based on the second subscriber station not being in soft handoff. - View Dependent Claims (14, 15, 16, 17)
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18. A communications station, comprising:
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a processor configured to separate a plurality of subscriber stations into first and second groups, allocate a different first code from a plurality of orthogonal codes to each of the subscriber stations in the first group, assign each of the subscriber stations in the first group either its allocated first code or a first sub-code derived from its allocated first code, to support a dedicated channel, and assign a second sub-code derived from one of the first codes to support a communications channel to one of the subscriber stations in the second group, wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to their respective first code, and wherein the processor is further configured to receive information indicating whether each of the subscriber stations are in soft handoff, and separate the subscriber stations by placing the subscriber stations in soft handoff in the first group and the subscriber stations that are not in soft handoff in the second group. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A communications station, comprising:
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means for allocating a first code to a first subscriber station; means for assigning a first sub-code derived from the first code to support a dedicated channel to the first subscriber station; means for assigning a second code to support a dedicated channel to a second subscriber station; and means for assigning a second sub-code derived from the first code to support a supplemental channel to the second subscriber station, wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to the first code, and wherein the first subscriber station is in soft handoff and the second subscriber station is not in soft handoff.
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25. A communications station, comprising:
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means for separating a plurality of subscriber stations into first and second groups; means for allocating a different first code from a plurality of orthogonal codes to each of the subscriber stations in the first group; means for assigning each of the subscriber stations in the first group either its allocated first code or a first sub-code derived from its allocated first code, to support a dedicated channel; and means for assigning a second sub-code derived from one of the first codes to support a communications channel to one of the subscriber stations in the second group, wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to their respective first code, and wherein the subscriber stations in the first group are in soft handoff and the subscriber stations in the second group are not in soft handoff.
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26. A non-transitory computer-readable medium including program code stored thereon, which, when executed by a machine, cause the machine to perform actions, the program code promising:
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program code to allocate a first code to a first subscriber station; program code to assign first sub-code derived from the first code to support a dedicated channel to the first subscriber station; program code to assign a second code to support a dedicated channel to a second subscriber station; and program code to assign a second sub-code derived from the first code to support a supplemental channel to the second subscriber station wherein the first and second sub-codes are restricted to lower data-rate transmission as compared to the first code, and wherein the first subscriber station is in soft handoff and the second subscriber station is not in soft handoff.
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27. A non-transitory computer-readable medium including program code stored thereon, which, when executed by a machine, cause the machine to perform actions, the program code promising:
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program code to separate a plurality of subscriber stations into first and second groups; program code to allocate a different first code from plurality of orthogonal codes to each of the subscriber stations in the first group; program code to assign each of the subscriber stations in the first group either its allocated first code or a first sub-code derived from its allocated first code, to support a dedicated channel; and program code to assign a second sub-code derived from one of the first codes to support a communications channel to one of the subscriber stations in the second group, wherein the first and second sub-codes are restricted to lower data-rate transmissions as compared to their respective first code, and wherein the subscriber stations in the first group are in soft handoff and the subscriber stations in the second group are not in soft handoff.
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Specification