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US 6,711,144 B1Granted
Multi-user communication of voice and data
AssigneeAirvana, Inc.
InventorsDae-Young Kim, M. Vedat Eyuboglu, Pierre A. Humblet
Life of this patent
Estimating the term…
Abstract
Data is sent in some time slots of a forward link from a base station to at least one remote station in a wireless communication system, and voice information is sent from the base station to the at least one remote station in some other time slots of the forward link, the data being sent in a time division multiple access (TDMA) mode, the voice data being sent in a code division multiple access (CDMA) mode.
Claims17
A method comprising
- sending data in some time slots of a forward link from a base station to at least one remote station in a wireless communication system, and
- sending voice information from the base station to the at least one remote station in some other time slots of the forward link, the data being sent in a time division multiple access (TDMA) mode,
- the voice information being sent in a code division multiple access (CDMA) mode, in which different remote stations are allocated different power levels for the voice information by allocating different power levels to the Walsh codes to which the voice information is allocated.
A method comprising
- sending data in some time slots of a forward link from a base station to at least one remote station in a wireless communication system, and
- sending voice information from the base station to the at least one remote station in some other time slots of the forward link, so that at least every fourth slot is not used for voice information and is available for sending the data
- the data being sent in a time division multiple access (TDMA) mode,
- the voice data being sent in a code division multiple access (CDMA) mode in which more than one Walsh code is assigned to a single voice call,
- the data and voice information being sent in a manner that is compatible with the sending of data in the forward link in the 1xEV-DO standard,
- different remote stations being allocated different power levels for the voice information.
3 more elements
Apparatus comprising
- a base station configured to send data in some time slots of a forward link from the base station to the at least one remote station in a wireless communication system, and to send voice information from the base station to the at least one remote station in some other time slots of the forward link, the data being sent in a time division multiple access (TDMA) mode, the voice data being sent in a code division multiple access (CDMA) mode, in which different remote stations are allocated different power levels for the voice information by allocating different power levels to the Walsh codes to which the voice information is allocated.
Dependencies are inferred from the claim text.