Claims
- 1. A base station having a receiver for recovering data transmitted over a plurality of channels employing wireless code division multiple access communication technique, comprising:
means for receiving the plurality of channels as a received signal, each channel associated with a code; means for subtracting for each of the plurality of channels, others of the plurality of channels from the received signal and despreading a result of that subtracting as data for that channel.
- 2. The base station of claim 1 wherein the means for subtracting includes for each channel:
a unit despreading the received signal with the others channel codes; a unit respreading the despread others channel codes; and a unit subtracting from the received signal the respread other channels.
- 3. The base station of claim 2 wherein the despreading unit is a mixer.
- 4. The base station of claim 2 wherein the despreading unit is a matched filter.
- 5. The base station for recovering data transmitted over a plurality of channels in a wireless code division multiple access communication technique, comprising:
a unit for receiving the plurality of channels as a received signal, each channel associated with a code; and for each of the plurality of channels, a subtractor for subtracting others of the plurality of channels from the received signal and despreading a result of that subtraction as data for that channel.
- 6. The base station of claim 5 further comprising:
for each channel, a first mixer operatively coupled to the input for despreading the received signal with that channel code; for each channel, a second mixer for respreading that channel despread signal; and wherein, for each channel, the subtractor subtracts from the received signal the respread channels other than that channel.
- 7. The base station of claim 1 further comprising:
for each channel, a matched filter operatively coupled to the input for despreading the received signal with that channel code; for each channel, a mixer for respreading that channel despread signal; and wherein, for each channel, the subtractor subtracts from the received signal the respread channels other than that channel.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of application Ser. No. 09/851,740, filed May 9, 2001, which is a continuation of application Ser. No. 09/276,019, filed Mar. 25, 1999, now U.S. Pat. No. 6,259,688, which is a continuation of U.S. application Ser. No. 08/939,146, filed Sep. 29, 1997, now U.S. Pat. No. 6,014,373, which is a continuation of U.S. application Ser. No. 08/654,994, filed May 29, 1996, now U.S. Pat. No. 5,719,852, which is a continuation of U.S. application Ser. No. 08/279,477, filed Jul. 26, 1994, now U.S. Pat. No. 5,553,062, which is a continuation-in-part of U.S. application Ser. No. 08/051,017, filed Apr. 22, 1993, now U.S. Pat. No. 5,363,403, all of which are incorporated herein by reference.
Continuations (5)
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09851740 |
May 2001 |
US |
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10163648 |
Jun 2002 |
US |
Parent |
09276019 |
Mar 1999 |
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09851740 |
May 2001 |
US |
Parent |
08939146 |
Sep 1997 |
US |
Child |
09276019 |
Mar 1999 |
US |
Parent |
08654994 |
May 1996 |
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08939146 |
Sep 1997 |
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Parent |
08279477 |
Jul 1994 |
US |
Child |
08654994 |
May 1996 |
US |
Continuation in Parts (1)
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08051017 |
Apr 1993 |
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08279477 |
Jul 1994 |
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