US7009952B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for seamless mobility with layer two assistance
Assignee: HP Inc
•
Filing: 2001-05-24
•
Granted: 2006-03-07
•
Expires: 2021-05-24
Abstract
Abstract One aspect of the present invention includes a method of handing off a network session between two different access technologies, in response to a quality of service metric, while maintaining the session. Additional aspects of the present invention are described in the claims, specification and drawings.
Inventors
- 👤 Javad Razavilar
- 👤 Barani Subbiah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:33
CPC Classifications
H; H04; H04L; H04L69/00; H04L69/16; H04L69/161; H04W; H04W36/00; H04W36/14; H04W36/144; H04W36/0005; H04W36/0011; H04W80/00; H04W80/06; H04W80/08; H04W80/10
Claims Analysis
Total Claims: 176
Claim 1
Independent Claim
146 words
A method of handing off a session from a first access technology to a second access technology based on a quality of service metric, including: monitoring at a mobile terminal, during a session, a quality of service metric describing a connection via a first access technology, the first access technology including a first entity having an IP stack; initiating a connection via a second access technology upon the monitored quality of service metric crossing a threshold, while continuing the connection via the first access technology, wherein the second access technology utilizes a different physical layer than the first access technology and includes a second entity having an IP stack; signaling the first entity to conduct a hand off of the session with the second entity; and modifying routing tables at the mobile terminal to use the connection via the second access technology to continue the session.
Claim 2
Independent Claim
146 words
A method of handing off a session from a first access technology to a second access technology based on a quality of service metric, including: monitoring at a mobile terminal, during a session, a quality of service metric describing a connection via a first access technology, the first access technology including a first entity having an IP stack; initiating a connection via a second access technology upon the monitored quality of service metric crossing a threshold, while continuing the connection via the first access technology, wherein the second access technology utilizes a different physical layer than the first access technology and includes a second entity having an IP stack; signaling the first entity to conduct a hand off of the session with the second entity; and modifying routing tables at the mobile terminal to use the connection via the second access technology to continue the session.
Claim 3
Dependent Claim
38 words
The method of claim 1 , including further monitoring the quality of service metric while initiating the connection via the second access technology and determining based upon the further monitoring whether to proceed with signaling the first entity.
Claim 4
Dependent Claim
38 words
The method of claim 1 , including further monitoring the quality of service metric after initiating the connection via the second access technology and determining based upon the further monitoring whether to proceed with signaling the first entity.
Claim 5
Dependent Claim
26 words
The method of claim 1 , wherein the threshold is a connect threshold, based on when it is preferred to connect to the second access technology.
Claim 6
Dependent Claim
26 words
The method of claim 1 , wherein the threshold is a disconnect threshold, based on when it is preferred to disconnect from the first access technology.
Claim 7
Dependent Claim
18 words
The method of claim 1 , wherein the quality of service metric includes a signal to noise ratio.
Claim 8
Dependent Claim
17 words
The method of claim 1 , wherein the quality of service metric includes a bit error rate.
Claim 9
Dependent Claim
17 words
The method of claim 1 , wherein the quality of service metric includes a packet loss rate.
Claim 10
Dependent Claim
17 words
The method of claim 1 , wherein the quality of service metric includes a frame loss rate.
Claim 11
Dependent Claim
18 words
The method of claim 1 , wherein the quality of service metric includes a measure of network congestion.
Claim 12
Dependent Claim
19 words
The method of claim 1 , wherein the quality of service metric includes a measure of network transmission delay.
Claim 13
Dependent Claim
26 words
The method of claim 1 , wherein the quality of service metric includes cost of access via the first access technology and the second access technology.
Claim 14
Dependent Claim
26 words
The method of claim 1 , wherein the quality of service metric includes service available when using the first access technology and the second access technology.
Claim 15
Dependent Claim
26 words
The method of claim 1 , wherein the quality of service metric includes security available when using the first access technology and the second access technology.
Claim 16
Dependent Claim
17 words
The method of claim 1 , wherein the first access technology is compliant with a 802.11x standard.
Claim 17
Dependent Claim
18 words
The method of claim 1 , wherein the first access technology includes using an unlicensed 2.4 GHz network.
Claim 18
Dependent Claim
17 words
The method of claim 1 , wherein the first access technology is compliant with a Bluetooth standard.
Claim 19
Dependent Claim
21 words
The method of claim 1 , wherein the first access technology includes using an RF connection compliant with a Bluetooth standard.
Claim 20
Dependent Claim
13 words
The method of claim 1 , wherein the session is a TCP session.
Claim 21
Dependent Claim
13 words
The method of claim 1 , wherein the session is a UDP session.
Claim 22
Dependent Claim
13 words
The method of claim 1 , wherein the session is a WAP session.
Claim 23
Dependent Claim
16 words
The method of claim 1 , wherein the session includes a Bluetooth standard compliant transport session.
Claim 24
Dependent Claim
18 words
The method of claim 1 , wherein the connection via the second access technology is a PPP connection.
Claim 25
Dependent Claim
18 words
The method of claim 1 , wherein the second access technology is compliant with an IS 95b standard.
Claim 26
Dependent Claim
18 words
The method of claim 1 , wherein the second access technology is compliant with an enhanced GSM standard.
Claim 27
Dependent Claim
17 words
The method of claim 1 , wherein the second access technology is compliant with a GPRS standard.
Claim 28
Dependent Claim
17 words
The method of claim 1 , wherein the second access technology is compatible with access via Metricom.
Claim 29
Dependent Claim
18 words
The method of claim 1 , wherein the second access technology is made using a cellular telephone network.
Claim 30
Dependent Claim
19 words
The method of claim 1 , wherein the second access technology is made using an unlicensed 2.4 GHz network.
Claim 31
Dependent Claim
33 words
The method of claim 1 , wherein the second access technology is made using communication between a satellite and the mobile terminal for at least one direction of the second access technology connection.
Claim 32
Dependent Claim
17 words
The method of claim 1 , wherein the second access technology is compliant with a Bluetooth standard.
Claim 33
Dependent Claim
21 words
The method of claim 1 , wherein the second access technology includes using an RF connection compliant with a Bluetooth standard.
Claim 34
Dependent Claim
19 words
The method of claim 1 , wherein crossing the threshold involves the signal quality metric rising above the threshold.
Claim 35
Dependent Claim
19 words
The method of claim 1 , wherein crossing the threshold involves the signal quality metric dropping below the threshold.
Claim 36
Dependent Claim
18 words
The method of claim 1 , wherein crossing the threshold involves the signal quality metric reaching the threshold.
Claim 37
Dependent Claim
21 words
The method of claim 1 , wherein the routing table at the mobile terminal is kept in a system directory file.
Claim 38
Dependent Claim
19 words
The method of claim 1 , wherein the routing table at the mobile terminal is kept in a memory.
Claim 39
Dependent Claim
20 words
The method of claim 1 , wherein modifying the routing table at the mobile terminal includes updating the default interface.
Claim 40
Dependent Claim
21 words
The method of claim 1 , wherein modifying the routing table at the mobile terminal includes updating the default IP address.
Claim 41
Dependent Claim
12 words
The method of claim 1 , wherein signaling takes place before modifying.
Claim 42
Dependent Claim
12 words
The method of claim 1 , wherein modifying takes place before signaling.
Claim 43
Independent Claim
97 words
A method of handing off a session from a WLAN connection to a WWAN connection based on a signal quality metric, including: monitoring at a mobile terminal during a session a signal quality metric describing a connection to a WLAN; initiating a connection to a WWAN upon the signal quality metric crossing a disconnect threshold, while continuing the connection to the WLAN; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the WWAN connection to continue the session.
Claim 44
Independent Claim
97 words
A method of handing off a session from a WLAN connection to a WWAN connection based on a signal quality metric, including: monitoring at a mobile terminal during a session a signal quality metric describing a connection to a WLAN; initiating a connection to a WWAN upon the signal quality metric crossing a disconnect threshold, while continuing the connection to the WLAN; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the WWAN connection to continue the session.
Claim 45
Dependent Claim
36 words
The method of claim 42 , including further monitoring the signal quality metric while initiating the connection to the WWAN and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 46
Dependent Claim
36 words
The method of claim 42 , including further monitoring the signal quality metric after initiating the connection to the WWAN and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 47
Dependent Claim
17 words
The method of claim 42 , wherein the signal quality metric is a signal to noise ratio.
Claim 48
Dependent Claim
16 words
The method of claim 42 , wherein the signal quality metric is a bit error rate.
Claim 49
Dependent Claim
16 words
The method of claim 42 , wherein the signal quality metric is a packet loss rate.
Claim 50
Dependent Claim
16 words
The method of claim 42 , wherein the signal quality metric is a frame loss rate.
Claim 51
Dependent Claim
17 words
The method of claim 42 , wherein the signal quality metric is a measure of network congestion.
Claim 52
Dependent Claim
18 words
The method of claim 42 , wherein the signal quality metric is a measure of network transmission delay.
Claim 53
Dependent Claim
16 words
The method of claim 42 , wherein the WLAN connection is compliant with a 802.11x standard.
Claim 54
Dependent Claim
18 words
The method of claim 42 , wherein the WLAN connection is made using an unlicensed 2.4 GHz network.
Claim 55
Dependent Claim
13 words
The method of claim 42 , wherein the session is a TCP session.
Claim 56
Dependent Claim
13 words
The method of claim 42 , wherein the session is a UDP session.
Claim 57
Dependent Claim
16 words
The method of claim 42 , wherein the connection to the WWAN is a PPP connection.
Claim 58
Dependent Claim
17 words
The method of claim 42 , wherein the WWAN connection is compliant with an IS 95b standard.
Claim 59
Dependent Claim
17 words
The method of claim 42 , wherein the WWAN connection is compliant with an enhanced GSM standard.
Claim 60
Dependent Claim
16 words
The method of claim 42 , wherein the WWAN connection is compliant with a GPRS standard.
Claim 61
Dependent Claim
16 words
The method of claim 42 , wherein the WWAN connection is compatible with access via Metricom.
Claim 62
Dependent Claim
17 words
The method of claim 42 , wherein the WWAN connection is made using a cellular telephone network.
Claim 63
Dependent Claim
18 words
The method of claim 42 , wherein the WWAN connection is made using an unlicensed 2.4 GHz network.
Claim 64
Dependent Claim
30 words
The method of claim 42 , wherein the WWAN connection is made using communication between a satellite and the mobile terminal for at least one direction of the WWAN connection.
Claim 65
Dependent Claim
21 words
The method of claim 42 , wherein crossing the disconnect threshold involves the signal quality metric rising above the disconnect threshold.
Claim 66
Dependent Claim
21 words
The method of claim 42 , wherein crossing the disconnect threshold involves the signal quality metric dropping below the disconnect threshold.
Claim 67
Dependent Claim
20 words
The method of claim 42 , wherein crossing the disconnect threshold involves the signal quality metric reaching the disconnect threshold.
Claim 68
Dependent Claim
22 words
The method of claim 42 , wherein the first router controls the WWAN connection and the second router controls the WLAN connection.
Claim 69
Dependent Claim
22 words
The method of claim 42 , wherein the first router controls the WLAN connection and the second router controls the WWAN connection.
Claim 70
Dependent Claim
21 words
The method of claim 42 , wherein the routing table at the mobile terminal is kept in a system directory file.
Claim 71
Dependent Claim
19 words
The method of claim 42 , wherein the routing table at the mobile terminal is kept in a memory.
Claim 72
Dependent Claim
21 words
The method of claim 42 , wherein modifying the routing table at the mobile terminal includes update updating the default interface.
Claim 73
Dependent Claim
22 words
The method of claim 42 , wherein modifying the routing table at the mobile terminal includes update updating the default IP address.
Claim 74
Dependent Claim
12 words
The method of claim 42 , wherein signaling takes place before modifying.
Claim 75
Dependent Claim
12 words
The method of claim 42 , wherein modifying takes place before signaling.
Claim 76
Independent Claim
100 words
A method of handing off a session from a WWAN to a WLAN based on signal quality metric, including: monitoring at a mobile terminal, during a session connected to a WWAN, a signal quality metric describing availability of a connection to a WLAN; initiating a connection to a WLAN upon the signal quality metric crossing a connect threshold, while continuing the connection to the WWAN; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the WLAN connection to continue the session.
Claim 77
Independent Claim
100 words
A method of handing off a session from a WWAN to a WLAN based on signal quality metric, including: monitoring at a mobile terminal, during a session connected to a WWAN, a signal quality metric describing availability of a connection to a WLAN; initiating a connection to a WLAN upon the signal quality metric crossing a connect threshold, while continuing the connection to the WWAN; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the WLAN connection to continue the session.
Claim 78
Dependent Claim
36 words
The method of claim 74 , including further monitoring the signal quality metric while initiating the connection to the WLAN and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 79
Dependent Claim
36 words
The method of claim 74 , including further monitoring the signal quality metric after initiating the connection to the WLAN and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 80
Dependent Claim
17 words
The method of claim 74 , wherein the signal quality metric is a signal to noise ratio.
Claim 81
Dependent Claim
16 words
The method of claim 74 , wherein the signal quality metric is a bit error rate.
Claim 82
Dependent Claim
16 words
The method of claim 74 , wherein the signal quality metric is a packet loss rate.
Claim 83
Dependent Claim
16 words
The method of claim 74 , wherein the signal quality metric is a frame loss rate.
Claim 84
Dependent Claim
17 words
The method of claim 74 , wherein the signal quality metric is a measure of network congestion.
Claim 85
Dependent Claim
18 words
The method of claim 74 , wherein the signal quality metric is a measure of network transmission delay.
Claim 86
Dependent Claim
16 words
The method of claim 74 , wherein the WLAN connection is compliant with a 802.11x standard.
Claim 87
Dependent Claim
18 words
The method of claim 74 , wherein the WLAN connection is made using an unlicensed 2.4 GHz network.
Claim 88
Dependent Claim
13 words
The method of claim 74 , wherein the session is a TCP session.
Claim 89
Dependent Claim
13 words
The method of claim 74 , wherein the session is a UDP session.
Claim 90
Dependent Claim
16 words
The method of claim 74 , wherein the connection to the WWAN is a PPP connection.
Claim 91
Dependent Claim
17 words
The method of claim 74 , wherein the WWAN connection is compliant with an IS 95b standard.
Claim 92
Dependent Claim
17 words
The method of claim 74 , wherein the WWAN connection is compliant with an enhanced GSM standard.
Claim 93
Dependent Claim
16 words
The method of claim 74 , wherein the WWAN connection is compliant with a GPRS standard.
Claim 94
Dependent Claim
16 words
The method of claim 74 , wherein the WWAN connection is compatible with access via Metricom.
Claim 95
Dependent Claim
17 words
The method of claim 74 , wherein the WWAN connection is made using a cellular telephone network.
Claim 96
Dependent Claim
18 words
The method of claim 74 , wherein the WWAN connection is made using an unlicensed 2.4 GHz network.
Claim 97
Dependent Claim
30 words
The method of claim 74 , wherein the WWAN connection is made using communication between a satellite and the mobile terminal for at least one direction of the WWAN connection.
Claim 98
Dependent Claim
21 words
The method of claim 74 , wherein crossing the connect threshold involves the signal quality metric rising above the connect threshold.
Claim 99
Dependent Claim
21 words
The method of claim 74 , wherein crossing the connect threshold involves the signal quality metric dropping below the connect threshold.
Claim 100
Dependent Claim
20 words
The method of claim 74 , wherein crossing the connect threshold involves the signal quality metric reaching the connect threshold.
Claim 101
Dependent Claim
22 words
The method of claim 74 , wherein the first router controls the WWAN connection and the second router controls the WLAN connection.
Claim 102
Dependent Claim
22 words
The method of claim 74 , wherein the first router controls the WLAN connection and the second router controls the WWAN connection.
Claim 103
Dependent Claim
21 words
The method of claim 74 , wherein the routing table at the mobile terminal is kept in a system directory file.
Claim 104
Dependent Claim
19 words
The method of claim 74 , wherein the routing table at the mobile terminal is kept in a memory.
Claim 105
Dependent Claim
21 words
The method of claim 74 , wherein modifying the routing table at the mobile terminal includes update updating the default interface.
Claim 106
Dependent Claim
22 words
The method of claim 74 , wherein modifying the routing table at the mobile terminal includes update updating the default IP address.
Claim 107
Dependent Claim
12 words
The method of claim 74 , wherein signaling takes place before modifying.
Claim 108
Dependent Claim
12 words
The method of claim 74 , wherein modifying takes place before signaling.
Claim 109
Independent Claim
109 words
A method of handing off a wireless session from a relatively high bandwidth wireless connection to a relatively low bandwidth connection based on a signal quality metric, including: monitoring at a mobile terminal during a wireless session a signal quality metric describing a relatively high bandwidth connection; initiating a connection to a relatively low bandwidth connection upon the signal quality metric crossing a disconnect threshold, while continuing the relatively high bandwidth connection; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the relatively low bandwidth connection to continue the session.
Claim 110
Independent Claim
109 words
A method of handing off a wireless session from a relatively high bandwidth wireless connection to a relatively low bandwidth connection based on a signal quality metric, including: monitoring at a mobile terminal during a wireless session a signal quality metric describing a relatively high bandwidth connection; initiating a connection to a relatively low bandwidth connection upon the signal quality metric crossing a disconnect threshold, while continuing the relatively high bandwidth connection; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the relatively low bandwidth connection to continue the session.
Claim 111
Dependent Claim
39 words
The method of claim 106 , including further monitoring the signal quality metric while initiating the connection to the relatively low bandwidth connection and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 112
Dependent Claim
39 words
The method of claim 106 , including further monitoring the signal quality metric after initiating the connection to the relatively low bandwidth connection and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 113
Dependent Claim
17 words
The method of claim 106 , wherein the signal quality metric is a signal to noise ratio.
Claim 114
Dependent Claim
16 words
The method of claim 106 , wherein the signal quality metric is a bit error rate.
Claim 115
Dependent Claim
16 words
The method of claim 106 , wherein the signal quality metric is a packet loss rate.
Claim 116
Dependent Claim
16 words
The method of claim 106 , wherein the signal quality metric is a frame loss rate.
Claim 117
Dependent Claim
17 words
The method of claim 106 , wherein the signal quality metric is a measure of network congestion.
Claim 118
Dependent Claim
18 words
The method of claim 106 , wherein the signal quality metric is a measure of network transmission delay.
Claim 119
Dependent Claim
18 words
The method of claim 106 , wherein the relatively high bandwidth connection is compliant with a 802.11x standard.
Claim 120
Dependent Claim
20 words
The method of claim 106 , wherein the relatively high bandwidth connection is made using an unlicensed 2.4 GHz network.
Claim 121
Dependent Claim
16 words
The method of claim 106 , wherein the relatively high bandwidth connection is a PPP connection.
Claim 122
Dependent Claim
13 words
The method of claim 106 , wherein the session is a TCP session.
Claim 123
Dependent Claim
13 words
The method of claim 106 , wherein the session is a UDP session.
Claim 124
Dependent Claim
16 words
The method of claim 106 , wherein the relatively low bandwidth connection is a PPP connection.
Claim 125
Dependent Claim
19 words
The method of claim 106 , wherein the relatively low bandwidth connection is compliant with an IS 95b standard.
Claim 126
Dependent Claim
19 words
The method of claim 106 , wherein the relatively low bandwidth connection is compliant with an enhanced GSM standard.
Claim 127
Dependent Claim
18 words
The method of claim 106 , wherein the relatively low bandwidth connection is compliant with a GPRS standard.
Claim 128
Dependent Claim
18 words
The method of claim 106 , wherein the relatively low bandwidth connection is compatible with access via Metricom.
Claim 129
Dependent Claim
19 words
The method of claim 106 , wherein the relatively low bandwidth connection is made using a cellular telephone network.
Claim 130
Dependent Claim
20 words
The method of claim 106 , wherein the relatively low bandwidth connection is made using an unlicensed 2.4 GHz network.
Claim 131
Dependent Claim
34 words
The method of claim 106 , wherein the relatively low bandwidth connection is made using communication between a satellite and the mobile terminal for at least one direction of the relatively low bandwidth connection.
Claim 132
Dependent Claim
21 words
The method of claim 106 , wherein crossing the disconnect threshold involves the signal quality metric rising above the disconnect threshold.
Claim 133
Dependent Claim
21 words
The method of claim 106 , wherein crossing the disconnect threshold involves the signal quality metric dropping below the disconnect threshold.
Claim 134
Dependent Claim
20 words
The method of claim 106 , wherein crossing the disconnect threshold involves the signal quality metric reaching the disconnect threshold.
Claim 135
Dependent Claim
26 words
The method of claim 106 , wherein the first router controls the relatively low bandwidth connection and the second router controls the relatively high bandwidth connection.
Claim 136
Dependent Claim
26 words
The method of claim 106 , wherein the first router controls the relatively high bandwidth connection and the second router controls the relatively low bandwidth connection.
Claim 137
Dependent Claim
21 words
The method of claim 106 , wherein the routing table at the mobile terminal is kept in a system directory file.
Claim 138
Dependent Claim
19 words
The method of claim 106 , wherein the routing table at the mobile terminal is kept in a memory.
Claim 139
Dependent Claim
21 words
The method of claim 106 , wherein modifying the routing table at the mobile terminal includes update updating the default interface.
Claim 140
Dependent Claim
22 words
The method of claim 106 , wherein modifying the routing table at the mobile terminal includes update updating the default IP address.
Claim 141
Dependent Claim
12 words
The method of claim 106 , wherein signaling takes place before modifying.
Claim 142
Dependent Claim
12 words
The method of claim 106 , wherein modifying takes place before signaling.
Claim 143
Independent Claim
111 words
A method of handing off a wireless session from a relatively low bandwidth wireless connection to a relatively high bandwidth connection based on a signal quality metric, including: monitoring at a mobile terminal during a wireless session a signal quality metric describing availability of a relatively high bandwidth connection; initiating a connection to a relatively high bandwidth connection upon the signal quality metric crossing a connect threshold, while continuing the relatively low bandwidth connection; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the relatively high bandwidth connection to continue the session.
Claim 144
Independent Claim
111 words
A method of handing off a wireless session from a relatively low bandwidth wireless connection to a relatively high bandwidth connection based on a signal quality metric, including: monitoring at a mobile terminal during a wireless session a signal quality metric describing availability of a relatively high bandwidth connection; initiating a connection to a relatively high bandwidth connection upon the signal quality metric crossing a connect threshold, while continuing the relatively low bandwidth connection; signaling a first access router to conduct a hand off of the session with a second access router; and modifying routing tables at the mobile terminal to use the relatively high bandwidth connection to continue the session.
Claim 145
Dependent Claim
39 words
The method of claim 139 , including further monitoring the signal quality metric while initiating the connection to the relatively high bandwidth connection and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 146
Dependent Claim
39 words
The method of claim 139 , including further monitoring the signal quality metric after initiating the connection to the relatively high bandwidth connection and determining based upon the further monitoring whether to proceed with signaling the first access router.
Claim 147
Dependent Claim
17 words
The method of claim 139 , wherein the signal quality metric is a signal to noise ratio.
Claim 148
Dependent Claim
16 words
The method of claim 139 , wherein the signal quality metric is a bit error rate.
Claim 149
Dependent Claim
16 words
The method of claim 139 , wherein the signal quality metric is a packet loss rate.
Claim 150
Dependent Claim
16 words
The method of claim 139 , wherein the signal quality metric is a frame loss rate.
Claim 151
Dependent Claim
17 words
The method of claim 139 , wherein the signal quality metric is a measure of network congestion.
Claim 152
Dependent Claim
18 words
The method of claim 139 , wherein the signal quality metric is a measure of network transmission delay.
Claim 153
Dependent Claim
18 words
The method of claim 139 , wherein the relatively high bandwidth connection is compliant with a 802.11x standard.
Claim 154
Dependent Claim
20 words
The method of claim 139 , wherein the relatively high bandwidth connection is made using an unlicensed 2.4 GHz network.
Claim 155
Dependent Claim
16 words
The method of claim 139 , wherein the relatively high bandwidth connection is a PPP connection.
Claim 156
Dependent Claim
13 words
The method of claim 139 , wherein the session is a TCP session.
Claim 157
Dependent Claim
13 words
The method of claim 139 , wherein the session is a UDP session.
Claim 158
Dependent Claim
16 words
The method of claim 139 , wherein the relatively low bandwidth connection is a PPP connection.
Claim 159
Dependent Claim
19 words
The method of claim 139 , wherein the relatively low bandwidth connection is compliant with an IS 95b standard.
Claim 160
Dependent Claim
19 words
The method of claim 139 , wherein the relatively low bandwidth connection is compliant with an enhanced GSM standard.
Claim 161
Dependent Claim
18 words
The method of claim 139 , wherein the relatively low bandwidth connection is compliant with a GPRS standard.
Claim 162
Dependent Claim
18 words
The method of claim 139 , wherein the relatively low bandwidth connection is compatible with access via Metricom.
Claim 163
Dependent Claim
19 words
The method of claim 139 , wherein the relatively low bandwidth connection is made using a cellular telephone network.
Claim 164
Dependent Claim
20 words
The method of claim 139 , wherein the relatively low bandwidth connection is made using an unlicensed 2.4 GHz network.
Claim 165
Dependent Claim
34 words
The method of claim 139 , wherein the relatively low bandwidth connection is made using communication between a satellite and the mobile terminal for at least one direction of the relatively low bandwidth connection.
Claim 166
Dependent Claim
21 words
The method of claim 139 , wherein crossing the connect threshold involves the signal quality metric rising above the connect threshold.
Claim 167
Dependent Claim
21 words
The method of claim 139 , wherein crossing the connect threshold involves the signal quality metric dropping below the connect threshold.
Claim 168
Dependent Claim
20 words
The method of claim 139 , wherein crossing the connect threshold involves the signal quality metric reaching the connect threshold.
Claim 169
Dependent Claim
26 words
The method of claim 139 , wherein the first router controls the relatively low bandwidth connection and the second router controls the relatively high bandwidth connection.
Claim 170
Dependent Claim
26 words
The method of claim 139 , wherein the first router controls the relatively high bandwidth connection and the second router controls the relatively low bandwidth connection.
Claim 171
Dependent Claim
21 words
The method of claim 139 , wherein the routing table at the mobile terminal is kept in a system directory file.
Claim 172
Dependent Claim
19 words
The method of claim 139 , wherein the routing table at the mobile terminal is kept in a memory.
Claim 173
Dependent Claim
21 words
The method of claim 139 , wherein modifying the routing table at the mobile terminal includes update updating the default interface.
Claim 174
Dependent Claim
22 words
The method of claim 139 , wherein modifying the routing table at the mobile terminal includes update updating the default IP address.
Claim 175
Dependent Claim
12 words
The method of claim 139 , wherein signaling takes place before modifying.
Claim 176
Dependent Claim
12 words
The method of claim 139 , wherein modifying takes place before signaling.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-03-06 | 2009-09-05 | 2010-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-03-06 | 2013-09-05 | 2014-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-03-06 | 2017-09-05 | 2018-03-07 | $7700.00 | Window Closed / Lapsed |