1. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal by applying slow scrambled code jitter with respect to a carrier frequency and frequency-shift keying (FSK) modulation of the digital information placed on top of the jitter; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal by applying slow scrambled code jitter with respect to a carrier frequency and frequency-shift keying (FSK) modulation of the digital information placed on top of the jitter; and', 'wirelessly transmitting the CDMA communication signal.

2. The method of claim 1 wherein the digital information is embedded in the CDMA communication signal as a watermark in a transmitting (TX) layer 2/3.

3. The method of claim 1 the digital information is embedded in the CDMA communication signal as a watermark in a transmitting (TX) physical layer.

4. The method of claim 1 wherein the digital information is embedded in the CDMA communication signal as a watermark in a transmitting (TX) radio frequency (RF) layer.

5. The method of claim 1 wherein the digital information is embedded in a frame quality indicator.

6. The method of claim 5 wherein the frame quality indicator includes a cyclic redundancy check (CRC).

7. The method of claim 1 the digital information is embedded in at least one encoder tail bit.

8. The method of claim 1 wherein the digital information is embedded in at least one reserved/erasure indicator.

9. The method of claim 1 wherein the digital information is mapped to a predefined frequency offset

10. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein particular chips are selected in at least one of a scrambling code and a channelization code, and the digital information is embedded in the selected chips; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein particular chips are selected in at least one of a scrambling code and a channelization code, and the digital information is embedded in the selected chips; and', 'wirelessly transmitting the CDMA communication signal

11. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is mapped to physical channel combinations based on at least one channelization code and a spreading factor (SF) according to a predefined rule; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is mapped to physical channel combinations based on at least one channelization code and a spreading factor (SF) according to a predefined rule; and', 'wirelessly transmitting the CDMA communication signal

12. The method of claim 11 wherein the channelization code is an orthogonal variable spreading factor (OVSF) code

13. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is represented as a relative gain or power offset between any pair of channelization codes; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is represented as a relative gain or power offset between any pair of channelization codes; and', 'wirelessly transmitting the CDMA communication signal

14. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is mapped as a delay of a channelization code transmission; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is mapped as a delay of a channelization code transmission; and', 'wirelessly transmitting the CDMA communication signal

15. The method of claim 1 wherein the digital information comprises at least one token

16. The method of claim 1 wherein the digital information comprises at least one key

17. The method of claim 1 wherein the digital information comprises at least one watermark

18. The method of claim 1 wherein the digital information comprises at least one signature

19. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is embedded in certain pilot symbols in a pilot channel; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is embedded in certain pilot symbols in a pilot channel; and', 'wirelessly transmitting the CDMA communication signal.

20. The method of claim 1 wherein the digital information is embedded in a control channel.

21. The method of claim 1 wherein the digital information is embedded in a data channel.

22. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is embedded in two different data symbols every other symbol period, wherein the two different data symbols are simultaneously transmitted by respective antennas of a transmitter having two antennas; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is embedded in two different data symbols every other symbol period, wherein the two different data symbols are simultaneously transmitted by respective antennas of a transmitter having two antennas; and', 'wirelessly transmitting the CDMA communication signal.

23. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is directly transported by defining a new physical channel or field; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is directly transported by defining a new physical channel or field; and', 'wirelessly transmitting the CDMA communication signal.

24. The method of claim 1 further comprising:
treating the digital information as dirty paper coding (DPC) encoded information; and
treating any other CDMA signals as side information.', 'treating the digital information as dirty paper coding (DPC) encoded information; and', 'treating any other CDMA signals as side information.

25. The method of claim 1 further comprising:
combining bits of the digital information with bits of a cyclic redundancy check (CRC).', 'combining bits of the digital information with bits of a cyclic redundancy check (CRC).

26. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is used to initialize a shift register of a cyclic redundancy check (CRC) generator prior to CRC generation for data; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is used to initialize a shift register of a cyclic redundancy check (CRC) generator prior to CRC generation for data; and', 'wirelessly transmitting the CDMA communication signal.

27. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is used to initialize a shift register of a forward error correction (FEC) encoder prior to channel coding for data; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is used to initialize a shift register of a forward error correction (FEC) encoder prior to channel coding for data; and', 'wirelessly transmitting the CDMA communication signal.

28. The method of claim 1 further comprising:
puncturing bits of a forward error correction (FEC) output;
inserting bits of the digital information in locations of the FEC output punctured bits; and
providing a cyclic redundancy check (CRC) output embedded with the digital information bits.', 'puncturing bits of a forward error correction (FEC) output;', 'inserting bits of the digital information in locations of the FEC output punctured bits; and', 'providing a cyclic redundancy check (CRC) output embedded with the digital information bits.

29. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein tail bits of a forward error correction (FEC) output are encoded with the digital information rather than being set to a binary value of zero; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein tail bits of a forward error correction (FEC) output are encoded with the digital information rather than being set to a binary value of zero; and', 'wirelessly transmitting the CDMA communication signal.

30. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is used to mask a forward error correction (FEC) output; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is used to mask a forward error correction (FEC) output; and', 'wirelessly transmitting the CDMA communication signal.

31. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein a set of transport formats for a transport channel (TrCH) is determined, a transport format is selected from the transport format set based on the digital information and at least one mapping rule, and the selected transport format is used to transmit the TrCH; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein a set of transport formats for a transport channel (TrCH) is determined, a transport format is selected from the transport format set based on the digital information and at least one mapping rule, and the selected transport format is used to transmit the TrCH; and', 'wirelessly transmitting the CDMA communication signal.

32. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is sent during at least one transmission gap of the CDMA communication signal when it is in a compressed mode; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is sent during at least one transmission gap of the CDMA communication signal when it is in a compressed mode; and', 'wirelessly transmitting the CDMA communication signal.

33. A method of protecting and authenticating wirelessly transmitted digital information, the method comprising:
steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is sent during a period of an activated discontinuous transmission mode using a predetermined transport format; and
wirelessly transmitting the CDMA communication signal.', 'steganographically embedding digital information in a code division multiple access (CDMA) communication signal, wherein the digital information is sent during a period of an activated discontinuous transmission mode using a predetermined transport format; and', 'wirelessly transmitting the CDMA communication signal.

34. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal, wherein the transmitter applies slow scrambled code jitter with respect to a carrier frequency and frequency-shift keying (FSK) modulation of the digital information placed on top of the jitter; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal, wherein the transmitter applies slow scrambled code jitter with respect to a carrier frequency and frequency-shift keying (FSK) modulation of the digital information placed on top of the jitter; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal.

35. The WTRU of claim 34 wherein the transmitter embeds the digital information in a frame quality indicator.

36. The WTRU of claim 35 wherein the frame quality indicator includes a cyclic redundancy check (CRC).

37. The WTRU of claim 34 wherein the transmitter embeds the digital information in at least one encoder tail bit.

38. The WTRU of claim 34 wherein the transmitter embeds the digital information in at least one reserved/erasure indicator.

39. The WTRU of claim 34 wherein the transmitter maps the digital information to a predefined frequency offset.

40. The WTRU of claim 34 wherein the receiver synchronizes a local descrambler to generate the same code jitter.

41. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter selects particular chips in at least one of a scrambling code and a channelization code, and embeds the digital information in the selected chips.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter selects particular chips in at least one of a scrambling code and a channelization code, and embeds the digital information in the selected chips.

42. The WTRU of claim 41 wherein the receiver determines the particular chips and extracts the digital information from the particular chips.

43. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter maps the digital information to physical channel combinations based on at least one channelization code and a spreading factor (SF) according to a predefined rule.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter maps the digital information to physical channel combinations based on at least one channelization code and a spreading factor (SF) according to a predefined rule.

44. The WTRU of claim 43 wherein the channelization code is an orthogonal variable spreading factor (OVSF) code.

45. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter represents the digital information as a relative gain or power offset between any pair of channelization codes.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter represents the digital information as a relative gain or power offset between any pair of channelization codes.

46. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter maps the digital information as a delay of a channelization code transmission.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter maps the digital information as a delay of a channelization code transmission.

47. The WTRU of claim 34 wherein the digital information comprises at least one token.

48. The WTRU of claim 34 wherein the digital information comprises at least one key.

49. The WTRU of claim 34 wherein the digital information comprises at least one watermark.

50. The WTRU of claim 34 wherein the digital information comprises at least one signature.

51. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter embeds the digital information in certain pilot symbols in a pilot channel.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter embeds the digital information in certain pilot symbols in a pilot channel.

52. The WTRU of claim 51 wherein the receiver extracts the digital information from the certain pilot symbols in the pilot channel.

53. The WTRU of claim 34 wherein the transmitter embeds the digital information in a control channel.

54. The WTRU of claim 34 wherein the transmitter embeds the digital information in a data channel.

55. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter comprises two antennas, whereby the transmitter embeds the digital information in two different data symbols every other symbol period, wherein the two different data symbols are simultaneously transmitted by the respective ones of the two antennas.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter comprises two antennas, whereby the transmitter embeds the digital information in two different data symbols every other symbol period, wherein the two different data symbols are simultaneously transmitted by the respective ones of the two antennas.

56. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the digital information is directly transported by defining a new physical channel or field.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the digital information is directly transported by defining a new physical channel or field.

57. The WTRU of claim 34 wherein the digital information is treated as dirty paper coding (DPC) encoded information and any other CDMA signals are treated as side information.

58. The WTRU of claim 34 wherein the transmitter combines bits of the digital information with bits of a cyclic redundancy check (CRC).

59. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter uses the digital information to initialize a shift register of a cyclic redundancy check (CRC) generator prior to CRC generation for data.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter uses the digital information to initialize a shift register of a cyclic redundancy check (CRC) generator prior to CRC generation for data.

60. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a CDMA communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter uses the digital information to initialize a shift register of a forward error correction (FEC) encoder prior to channel coding for data.', 'a transmitter which steganographically embeds digital information in a CDMA communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter uses the digital information to initialize a shift register of a forward error correction (FEC) encoder prior to channel coding for data.

61. The WTRU of claim 34 wherein the transmitter punctures bits of a forward error correction (FEC) output, inserts bits of the digital information in locations of the FEC output punctured bits and provides a cyclic redundancy check (CRC) output embedded with the digital information bits.

62. The WTRU of claim 61 wherein the receiver extracts the digital information from the punctured bit locations of the FEC output.

63. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter encodes tail bits of a forward error correction (FEC) output with the digital information rather than setting the tail bits to a binary value of zero.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter encodes tail bits of a forward error correction (FEC) output with the digital information rather than setting the tail bits to a binary value of zero.

64. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter uses the digital information to mask a forward error correction (FEC) output.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter uses the digital information to mask a forward error correction (FEC) output.

65. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter determines a set of transport formats for a transport channel (TrCH), selects a transport format from the transport format set based on the digital information and at least one mapping rule, and uses the selected transport format to transmit the TrCH.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter determines a set of transport formats for a transport channel (TrCH), selects a transport format from the transport format set based on the digital information and at least one mapping rule, and uses the selected transport format to transmit the TrCH.

66. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter sends the digital information during at least one transmission gap of the CDMA communication signal when it is in a compressed mode.', 'a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and', 'a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter sends the digital information during at least one transmission gap of the CDMA communication signal when it is in a compressed mode.

67. A wireless transmit/receive unit (WTRU) comprising:
a transmitter which steganographically embeds digital information in a code division multiple access (CDMA) communication signal and wirelessly transmits the CDMA communication signal; and
a receiver which receives a CDMA communication signal and extracts steganographically embedded digital information from the received CDMA communication signal, wherein the transmitter sends the digital information during a period of an activated discontinuous transmission (DTX) mode using a predetermined transport format.', 'a transmitter which steganographically embeds digital information in a code division m