US20040037250A1
Expired / Lapsed
US
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Methods, apparatus and computer program products for controlling a reverse link traffic channel code responsive to detection of a duplicate terminal identity
Assignee: Sony Mobile Communications AB
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Filing: 2002-08-22
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Granted: —
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Expires: 2022-08-22
Abstract
Abstract According to some embodiments of the present invention, a reverse link traffic channel code used by a terminal accessing a CDMA wireless communications system is controlled responsive to determining whether the terminal has a duplicate Electronic Serial Number (ESN). In some embodiments, for example, an alternative ESN may be sent to the terminal having the duplicate ESN for use in generating the reverse link traffic channel code. In other embodiments, a time shift may be applied in generating the reverse traffic channel code, such as by time-shifting the reverse link traffic channel code or a long code used to generate the reverse link traffic channel code. In still other embodiments, an alternative long code mask, such as a private long code mask used for a voice privacy feature, may be used responsive to detection of a duplicate ESN. The present invention may be embodied as methods of operating wireless communications systems and/or terminals, wireless communications apparatus such as network components and terminals, and computer program products including program code configured to execute in a wireless communications apparatus.
Inventors
- 👤 Wail Refai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/69; H04B1/707; H04B1/7073; H04B7/00; H04B7/24; H04B7/26; H04B7/2628
Claims Analysis
Total Claims: 65
Claim 1
Independent Claim
54 words
1 . A method of operating in a CDMA wireless communication system, the method comprising: determining whether a terminal accessing the wireless communications system has a duplicate Electronic Serial Number (ESN); and controlling a reverse link traffic channel code used by the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 2
Dependent Claim
54 words
1 . A method of operating in a CDMA wireless communication system, the method comprising: determining whether a terminal accessing the wireless communications system has a duplicate Electronic Serial Number (ESN); and controlling a reverse link traffic channel code used by the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 3
Dependent Claim
45 words
2 . A method according to claim 1 , wherein controlling a reverse link traffic channel code used by the terminal comprises selecting a reverse link traffic channel code generation process for the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 4
Dependent Claim
37 words
3 . A method according to claim 2 , wherein selecting a reverse link traffic channel code generation process for the terminal comprises assigning an alternative ESN to the terminal responsive to detection of a duplicate ESN.
Claim 5
Dependent Claim
18 words
4 . A method according to claim 3 , further comprising communicating the alternative ESN to the terminal.
Claim 6
Dependent Claim
35 words
5 . A method according to claim 4 , further comprising using the alternative ESN to generate a reverse link traffic channel code for a reverse link between the terminal and a wireless base station.
Claim 7
Dependent Claim
44 words
6 . A method according to claim 1 , wherein controlling a reverse link traffic channel code used by the terminal comprises instructing the terminal to apply a time shift to the reverse link traffic channel code responsive to detection of a duplicate ESN.
Claim 8
Dependent Claim
26 words
7 . A method according to claim 6 , wherein instructing the terminal to apply a time shift comprises communicating the time shift to the terminal.
Claim 9
Dependent Claim
36 words
8 . A method according to claim 7 , further comprising applying the communicated time shift in generating a reverse link traffic channel code for a reverse link between the terminal and a wireless base station.
Claim 10
Dependent Claim
46 words
9 . A method according to claim 6 , wherein instructing the terminal to apply a time shift comprises instructing the terminal to delay the reverse link traffic channel code commensurate with a frame offset assigned to the terminal responsive to detection of a duplicate ESN.
Claim 11
Dependent Claim
48 words
10 . A method according to claim 6 , wherein instructing the terminal to apply a time shift comprises instructing the terminal to provide a predetermined delay of a long code before multiplication of the long code by a PN code responsive to detection of a duplicate ESN.
Claim 12
Dependent Claim
38 words
11 . A method according to claim 10 , wherein instructing the terminal to provide a predetermined delay of a long code comprises instructing the terminal to provide the predetermined delay before multiplication by a Q-channel PN code.
Claim 13
Dependent Claim
47 words
12 . A method according to claim 1 , wherein controlling a reverse link traffic channel code used by the terminal comprises instructing the terminal to use an alternative long code mask to generate the reverse link traffic channel code responsive to detection of a duplicate ESN.
Claim 14
Dependent Claim
45 words
13 . A method according to claim 12 wherein instructing the terminal to use an alternative long code mask comprises instructing the terminal to select one of a public long code mask or a private long code mask responsive to detection of a duplicate ESN.
Claim 15
Dependent Claim
55 words
14 . A method of operating a CDMA wireless terminal, the method comprising: receiving an indication from a wireless communications system that the terminal has a duplicate Electronic Serial Number (ESN); and controlling a reverse link traffic channel code used by the terminal responsive to the received indication that the terminal has a duplicate ESN.
Claim 16
Dependent Claim
55 words
14 . A method of operating a CDMA wireless terminal, the method comprising: receiving an indication from a wireless communications system that the terminal has a duplicate Electronic Serial Number (ESN); and controlling a reverse link traffic channel code used by the terminal responsive to the received indication that the terminal has a duplicate ESN.
Claim 17
Dependent Claim
42 words
15 . A method according to claim 14 , wherein controlling a reverse link traffic channel code used by the terminal comprises selecting a reverse link traffic channel code generation process responsive to the indication that the terminal has a duplicate ESN.
Claim 18
Dependent Claim
56 words
16 . A method according to claim 15: wherein receiving an indication from a wireless communications system that the terminal has a duplicate Electronic Serial Number (ESN) comprises receiving an alternate ESN; and wherein selecting a reverse link traffic channel code generation process comprises using the alternative ESN to generate the reverse link traffic channel code.
Claim 19
Dependent Claim
62 words
17 . A method according to claim 14: wherein receiving an indication from a wireless communications system that the terminal has a duplicate ESN comprises receiving an indication of a time shift from the wireless communication system; and wherein controlling a reverse link traffic channel code used by the terminal comprises applying the time shift to the reverse link traffic channel code.
Claim 20
Dependent Claim
31 words
18 . A method according to claim 17 , wherein applying the time shift comprises delaying the reverse link traffic channel code commensurate with a frame offset assigned to the terminal.
Claim 21
Dependent Claim
37 words
19 . A method according to claim 17 , wherein applying the time shift comprises instructing the terminal to provide a predetermined delay of a long code before multiplication of the long code by a PN code.
Claim 22
Dependent Claim
38 words
20 . A method according to claim 19 , wherein instructing the terminal to provide a predetermined delay of the long code comprises instructing the terminal to provide the predetermined delay before multiplication by a Q-channel PN code.
Claim 23
Dependent Claim
48 words
21 . A method according to claim 14 , wherein controlling a reverse link traffic channel code used by the terminal comprises using an alternative long code mask to generate the reverse link traffic channel code responsive to the received indication that the terminal has a duplicate ESN.
Claim 24
Dependent Claim
31 words
22 . A method according to claim 21 , wherein using an alternative long code mask comprises selecting one of a public long code mask or a private long code mask.
Claim 25
Dependent Claim
51 words
23 . A CDMA wireless communication apparatus, comprising: means for determining whether a terminal accessing the wireless communications system has a duplicate Electronic Serial Number (ESN); and means for controlling a reverse link traffic channel code used by the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 26
Dependent Claim
51 words
23 . A CDMA wireless communication apparatus, comprising: means for determining whether a terminal accessing the wireless communications system has a duplicate Electronic Serial Number (ESN); and means for controlling a reverse link traffic channel code used by the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 27
Dependent Claim
50 words
24 . An apparatus according to claim 23 , wherein the means for controlling a reverse link traffic channel code used by the terminal comprises means for selecting a reverse link traffic channel code generation process for the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 28
Dependent Claim
40 words
25 . An apparatus according to claim 24 , wherein the means for selecting a reverse link traffic channel code generation process for the terminal comprises assigning an alternative ESN to the terminal responsive to detection of a duplicate ESN.
Claim 29
Dependent Claim
49 words
26 . An apparatus according to claim 23 , wherein the means for controlling a reverse link traffic channel code used by the terminal comprises means for instructing the terminal to apply a time shift to the reverse link traffic channel code responsive to detection of a duplicate ESN.
Claim 30
Dependent Claim
51 words
27 . An apparatus according to claim 26 , wherein the means for instructing the terminal to apply a time shift comprises means for instructing the terminal to delay the reverse link traffic channel code commensurate with a frame offset assigned to the terminal responsive to detection of a duplicate ESN.
Claim 31
Dependent Claim
52 words
28 . An apparatus according to claim 26 wherein the means for instructing the terminal to apply a time shift comprises means for instructing the terminal to provide a predetermined delay of a long code before multiplication of the long code by a PN code responsive to detection of a duplicate ESN.
Claim 32
Dependent Claim
52 words
29 . An apparatus according to claim 23 , wherein the means for controlling a reverse link traffic channel code used by the terminal comprises means for instructing the terminal to use an alternative long code mask to generate the reverse link traffic channel code responsive to detection of a duplicate ESN.
Claim 33
Dependent Claim
51 words
30 . An apparatus according to claim 29 , wherein the means for instructing the terminal to use an alternative long code mask comprises means for instructing the terminal to select one of a public long code mask or a private long code mask responsive to detection of a duplicate ESN.
Claim 34
Dependent Claim
53 words
31 . A CDMA wireless terminal, comprising: means for receiving an indication from a wireless communications system that the terminal has a duplicate Electronic Serial Number (ESN); and means for controlling a reverse link traffic channel code used by the terminal responsive to the received indication that the terminal has a duplicate ESN.
Claim 35
Dependent Claim
53 words
31 . A CDMA wireless terminal, comprising: means for receiving an indication from a wireless communications system that the terminal has a duplicate Electronic Serial Number (ESN); and means for controlling a reverse link traffic channel code used by the terminal responsive to the received indication that the terminal has a duplicate ESN.
Claim 36
Dependent Claim
65 words
32 . A CDMA wireless terminal according to claim 31: wherein the means for receiving an indication from a wireless communications system that the terminal has a duplicate Electronic Serial Number (ESN) comprises means for receiving an alternate ESN; and wherein the means for controlling a reverse link traffic channel code comprises means for generating the reverse link traffic channel code from the alternative ESN.
Claim 37
Dependent Claim
70 words
33 . A CDMA wireless terminal according to claim 31: wherein the means for receiving an indication from a wireless communications system that the terminal has a duplicate ESN comprises means for receiving an indication of a time shift; and wherein the means for controlling a reverse link traffic channel code used by the terminal comprises means for applying the indicated time shift to the reverse link traffic channel code.
Claim 38
Dependent Claim
38 words
34 . A CDMA wireless terminal according to claim 33 , wherein the means for applying the time shift comprises means for delaying the reverse link traffic channel code commensurate with a frame offset assigned to the terminal.
Claim 39
Dependent Claim
36 words
35 . A CDMA wireless terminal according to claim 33 , wherein the means for applying the time shift comprises means for delaying a long code before multiplication of the long code by a PN code.
Claim 40
Dependent Claim
38 words
36 . A CDMA wireless terminal according to claim 35 , wherein the means for delaying a long code comprises means for delaying the long code before multiplication of the delayed long code by a Q-channel PN code.
Claim 41
Dependent Claim
55 words
37 . A CDMA wireless terminal according to claim 31 , wherein the means for controlling a reverse link traffic channel code used by the terminal comprises means for using an alternative long code mask to generate the reverse link traffic channel code responsive to the received indication that the terminal has a duplicate ESN.
Claim 42
Dependent Claim
38 words
38 . A CDMA wireless terminal according to claim 37 , wherein the means for using an alternative long code mask comprises means for selecting one of a public long code mask or a private long code mask.
Claim 43
Dependent Claim
56 words
39 . A CDMA wireless terminal, comprising: a radio communications circuit operative to send and receive radio signals; and a control circuit coupled to the radio communications circuit and operative to control a reverse link traffic channel code used by the radio communications circuit responsive to a received indication that the terminal has a duplicate ESN.
Claim 44
Dependent Claim
56 words
39 . A CDMA wireless terminal, comprising: a radio communications circuit operative to send and receive radio signals; and a control circuit coupled to the radio communications circuit and operative to control a reverse link traffic channel code used by the radio communications circuit responsive to a received indication that the terminal has a duplicate ESN.
Claim 45
Dependent Claim
39 words
40 . A CDMA wireless terminal according to claim 39 , wherein the control circuit is operative to select a reverse link traffic channel code generation process responsive to the received indication that the terminal has a duplicate ESN.
Claim 46
Dependent Claim
41 words
41 . A CDMA wireless terminal according to claim 40 , wherein the control circuit is operative to use an alternative ESN to generate the reverse link traffic channel code responsive the received indication that the terminal has a duplicate ESN.
Claim 47
Dependent Claim
41 words
42 . A CDMA wireless terminal according to claim 39 , wherein the control circuit is operative to apply a time shift to the reverse link traffic channel code responsive to the received indication that the terminal has a duplicate ESN.
Claim 48
Dependent Claim
46 words
43 . A CDMA wireless terminal according to claim 42 , wherein the control circuit is operative to delay the reverse link traffic channel code commensurate with a frame offset assigned to the terminal responsive to the received indication that the terminal has a duplicate ESN.
Claim 49
Dependent Claim
44 words
44 . A CDMA wireless terminal according to claim 42 , wherein the control circuit is operative to delay a long code before multiplication of the long code by a PN code responsive to the received indication that the terminal has a duplicate ESN.
Claim 50
Dependent Claim
29 words
45 . A CDMA wireless terminal according to claim 44 , wherein the control circuit is operative to delay the long code before multiplication by a Q-channel PN code.
Claim 51
Dependent Claim
36 words
46 . A CDMA wireless terminal according to claim 39 , wherein the control circuit is operative to use an alternative long code mask responsive to the received indication that the terminal has a duplicate ESN.
Claim 52
Dependent Claim
59 words
47 . A computer program product for operating a CDMA wireless terminal, the computer program product comprising computer-readable program code embodied in a computer-readable program storage medium, the computer-readable program code comprising: program code configured to control a reverse link traffic channel code used by the terminal responsive to a received indication that the terminal has a duplicate ESN.
Claim 53
Dependent Claim
59 words
47 . A computer program product for operating a CDMA wireless terminal, the computer program product comprising computer-readable program code embodied in a computer-readable program storage medium, the computer-readable program code comprising: program code configured to control a reverse link traffic channel code used by the terminal responsive to a received indication that the terminal has a duplicate ESN.
Claim 54
Dependent Claim
56 words
48 . A computer program product according to claim 47 , wherein the program code configured to control a reverse link traffic channel code used by the terminal comprises program code configured to generate the reverse link traffic channel code using an alternative ESN responsive to the received indication that the terminal has a duplicate ESN.
Claim 55
Dependent Claim
56 words
49 . A computer program product according to claim 47 , wherein the program code configured to control a reverse link traffic channel code used by the terminal comprises program code configured to apply a time shift to the reverse link traffic channel code responsive to the received indication that the terminal has a duplicate ESN.
Claim 56
Dependent Claim
49 words
50 . A computer program product according to claim 49 , wherein the program code configured to apply a time shift to the reverse link traffic channel code comprises program code configured to delay the reverse link traffic channel code commensurate with a frame offset assigned to the terminal.
Claim 57
Dependent Claim
47 words
51 . A computer program product according to claim 49 , wherein the program code configured to apply a time shift to the reverse link traffic channel code comprises program code configured to delay a long code before multiplication of the long code by a PN code.
Claim 58
Dependent Claim
55 words
52 . A computer program product according to claim 47 , wherein the program code configured to apply a time shift to the reverse link traffic channel code comprises program code configured to generate a long code using an alternative long code mask responsive to the received indication that the terminal has a duplicate ESN.
Claim 59
Dependent Claim
80 words
53 . A computer program product for operating a CDMA wireless communications system, the computer program product comprising computer-readable program code embodied in a computer-readable program storage medium, the computer-readable program code comprising: program code configured to determine whether a terminal accessing the wireless communications system has a duplicate Electronic Serial Number (ESN); and program code configured to control a reverse link traffic channel code used by the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 60
Dependent Claim
80 words
53 . A computer program product for operating a CDMA wireless communications system, the computer program product comprising computer-readable program code embodied in a computer-readable program storage medium, the computer-readable program code comprising: program code configured to determine whether a terminal accessing the wireless communications system has a duplicate Electronic Serial Number (ESN); and program code configured to control a reverse link traffic channel code used by the terminal responsive to the determining whether the terminal has a duplicate ESN.
Claim 61
Dependent Claim
43 words
54 . A computer program product according to claim 53 , wherein the program code configured to control a reverse link traffic channel code comprises program code configured to assign an alternative ESN to the terminal responsive to detection of a duplicate ESN.
Claim 62
Dependent Claim
51 words
55 . A computer program product according to claim 53 , wherein the program code configured to control a reverse link traffic channel code comprises program code configured to instruct the terminal to apply a time shift to the reverse link traffic channel code responsive to detection of a duplicate ESN.
Claim 63
Dependent Claim
64 words
56 . A computer program product according to claim 55 , wherein the program code configured to instruct the terminal to apply a time shift to the reverse link traffic channel code comprises program code configured to instruct the terminal to delay the reverse link traffic channel code commensurate with a frame offset assigned to the terminal responsive to detection of a duplicate ESN.
Claim 64
Dependent Claim
66 words
57 . A computer program product according to claim 55 , wherein the program code configured to instruct the terminal to apply a time shift to the reverse link traffic channel code comprises program code configured to instruct the terminal to provide a predetermined delay of a long code before multiplication of the long code by a PN code responsive to detection of a duplicate ESN.
Claim 65
Dependent Claim
54 words
58 . A computer program product according to claim 53 , wherein the program code configured to control a reverse link traffic channel code comprises program code configured to instruct the terminal to use an alternative long code mask to generate the reverse link traffic channel code responsive to detection of a duplicate ESN.
References Cited (Backward Citations)
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