US6724740B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Channel communication device and method for CDMA communication system
Assignee: Samsung Electronics Co Ltd
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Filing: 1998-08-11
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Granted: 2004-04-20
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Expires: 2018-08-11
Abstract
Abstract A CDMA communication system transmitting/receiving control information during a voice and/or data communication service by using a dedicated control channel. A message frame length for the control information is variable according to an amount of the control information. The CDMA communication system includes a base station device and a terminal device. The base station device has a forward pilot channel generator for generating a pilot signal, a forward dedicated control channel generator for generating a control message for a forward dedicated control channel, a forward fundamental channel generator for generating a voice signal, and a forward supplemental channel generator for generating packet data. The terminal device has a terminal device including, a reverse dedicated control channel generator for generating a control message for a reverse dedicated control channel, a reverse pilot channel generator for generating a pilot signal by adding a power control signal to the pilot signal, a reverse fundamental channel generator for generating a voice signal, and a reverse supplemental channel generator for generating packet data.
Inventors
- 👤 Jin-Woo Choi
- 👤 Soon-Young Yoon
- 👤 Jae-Min Ahn
- 👤 Young-Ky Kim
- 👤 Joong-Ho Jeong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:39
CPC Classifications
H; H04; H04W; H04W48/00; H04W48/08; H04W48/12; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/155; H04B1/00; H04B1/69; H04B1/707; H04B7/24; H04B7/26; H04B7/2628; H04B7/264; H04W52/00; H04W52/02; H04W52/0209; H04W52/0212; H04W52/0216; H04W88/00; H04W88/08; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 78
Claim 1
Independent Claim
267 words
A base station communication device for a CDMA (Code Division Multiple Access) communication system, comprising: a controller for allocating an orthogonal code for channelizing one or more channels of said communication system; a pilot channel generator for orthogonal-spreading a pilot signal with an orthogonal code allocated to a pilot channel; a dedicated control channel generator for orthogonal-spreading a control message of a dedicated control channel with an orthogonal code allocated to the dedicated control channel and generating the control message discontinuously according to the existence/nonexistence of the control message, the dedicated control channel having a first and a second dedicated control channel signal; a dedicated fundamental channel generator for orthogonal-spreading a voice signal of a dedicated fundamental channel with an orthogonal code allocated to the dedicated fundamental channel, the dedicated fundamental channel having a first and a second dedicated fundamental channel signal; a dedicated supplemental channel generator for orthogonal-spreading packet data of a dedicated supplemental channel with an orthogonal code allocated to the dedicated supplemental channel, the dedicated supplemental channel having a first and a second dedicated supplemental channel signal; a first adder for adding the output of the pilot channel generator to the first channel signals output from the dedicated control channel generator, the dedicated fundamental channel generator, and the dedicated supplemental channel generator; a second adder for adding the second channel signals output from the dedicated control channel generator, the dedicated fundamental channel generator, and the dedicated supplemental channel generator; and a spreader for spreading signals output from the first adder and the second adder with a PN (pseudo noise) sequence of a base station.
Claim 2
Dependent Claim
267 words
A base station communication device for a CDMA (Code Division Multiple Access) communication system, comprising: a controller for allocating an orthogonal code for channelizing one or more channels of said communication system; a pilot channel generator for orthogonal-spreading a pilot signal with an orthogonal code allocated to a pilot channel; a dedicated control channel generator for orthogonal-spreading a control message of a dedicated control channel with an orthogonal code allocated to the dedicated control channel and generating the control message discontinuously according to the existence/nonexistence of the control message, the dedicated control channel having a first and a second dedicated control channel signal; a dedicated fundamental channel generator for orthogonal-spreading a voice signal of a dedicated fundamental channel with an orthogonal code allocated to the dedicated fundamental channel, the dedicated fundamental channel having a first and a second dedicated fundamental channel signal; a dedicated supplemental channel generator for orthogonal-spreading packet data of a dedicated supplemental channel with an orthogonal code allocated to the dedicated supplemental channel, the dedicated supplemental channel having a first and a second dedicated supplemental channel signal; a first adder for adding the output of the pilot channel generator to the first channel signals output from the dedicated control channel generator, the dedicated fundamental channel generator, and the dedicated supplemental channel generator; a second adder for adding the second channel signals output from the dedicated control channel generator, the dedicated fundamental channel generator, and the dedicated supplemental channel generator; and a spreader for spreading signals output from the first adder and the second adder with a PN (pseudo noise) sequence of a base station.
Claim 3
Dependent Claim
26 words
The base station communication device as claimed in claim 1 , wherein said controller allocates a quasi-orthogonal code to at least one of said channel generators.
Claim 4
Dependent Claim
28 words
The base station communication device as claimed in claim 2 , wherein the channel generator to which said quasi-orthogonal code is allocated is said dedicated control channel generator.
Claim 5
Dependent Claim
28 words
The base station communication device as claimed in claim 1 , wherein the control message generated from said dedicated control channel generator comprises a radio link protocol (RLP).
Claim 6
Dependent Claim
29 words
The base station communication device as claimed in claim 1 , wherein the control message generated from said dedicated control channel generator comprises a MAC (Medium Access Control) message.
Claim 7
Dependent Claim
27 words
The base station communication device as claimed in claim 1 , wherein the control message generated from said dedicated control channel generator comprises an L3 signaling message.
Claim 8
Dependent Claim
25 words
The base station communication device as claimed in claim 1 , wherein said dedicated control channel generator adds power control information to said control message.
Claim 9
Dependent Claim
24 words
The base station communication device as claimed in claim 1 , wherein said fundamental channel generator adds power control information to said voice signal.
Claim 10
Dependent Claim
46 words
The base station communication device as claimed in claim 1 , wherein said fundamental channel generator adds power control information to said voice signal and said dedicated control channel generator adds said power control information to said control message when said fundamental channel generator is disabled.
Claim 11
Dependent Claim
34 words
The base station communication device as claimed in claim 1 , wherein said dedicated control channel generator generates said control message in first and second frame sizes according to sizes of said control message.
Claim 12
Dependent Claim
27 words
The base station communication device as claimed in claim 10 , wherein said first frame size is 5 ms and said second frame size is 20 ms.
Claim 13
Dependent Claim
29 words
The base station communication device as claimed in claim 11 , wherein said dedicated control channel generator generates said control message discontinuously according to existence/nonexistence of said control message.
Claim 14
Dependent Claim
50 words
The base station communication device as claimed in claim 1 , wherein said dedicated control channel generator generates said control message in a first frame size when said control message is an urgent control message and in a second frame size when said control message is a normal control message.
Claim 15
Dependent Claim
27 words
The base station communication device as claimed in claim 13 , wherein said first frame size is 5 ms and said second frame size is 20 ms.
Claim 16
Dependent Claim
29 words
The base station communication device as claimed in claim 14 , wherein said dedicated control channel generator generates said control message discontinuously according to existence/nonexistence of said control message.
Claim 17
Dependent Claim
22 words
The base station communication device as claimed in claim 1 , wherein said supplemental channel generator allocates a plurality of supplemental channels.
Claim 18
Dependent Claim
63 words
The base station communication device as claimed in claim 1 , further comprising: a sync channel generator to which an orthogonal code is allocated by said controller, for generating sync channel information for time synchronization and frame synchronization; and a paging channel generator to which an orthogonal code is allocated by said controller, for generating information required before formation of a communication channel.
Claim 19
Dependent Claim
98 words
A terminal communication device for a CDMA communication system, comprising: a dedicated control channel generator for discontinuously generating a control message according to the existence/nonexistence of the control message for a dedicated control channel; a pilot channel generator for generating a pilot signal by adding a power control signal to said pilot signal thereby eliminating the need to assign a new channel to transmit the power control signal; a fundamental channel generator for generating a voice signal; a supplemental channel generator for generating data; and a spreader for spreading signals output from the channel generators with a PN.
Claim 20
Dependent Claim
98 words
A terminal communication device for a CDMA communication system, comprising: a dedicated control channel generator for discontinuously generating a control message according to the existence/nonexistence of the control message for a dedicated control channel; a pilot channel generator for generating a pilot signal by adding a power control signal to said pilot signal thereby eliminating the need to assign a new channel to transmit the power control signal; a fundamental channel generator for generating a voice signal; a supplemental channel generator for generating data; and a spreader for spreading signals output from the channel generators with a PN.
Claim 21
Dependent Claim
26 words
The terminal communication device as claimed in claim 18 , further comprising a controller for allocating an orthogonal code for dividing channels of said channel generators.
Claim 22
Dependent Claim
25 words
The terminal communication device as claimed in claim 19 , wherein said controller allocates a quasi-orthogonal code to at least one of said channel generators.
Claim 23
Dependent Claim
27 words
The terminal communication device as claimed in claim 20 , wherein the channel generator to which said quasi-orthogonal code is allocated is said dedicated control channel generator.
Claim 24
Dependent Claim
25 words
The terminal communication device as claimed in claim 19 , wherein the control message generated from said dedicated control channel generator comprises an RLP message.
Claim 25
Dependent Claim
25 words
The terminal communication device as claimed in claim 19 , wherein the control message generated from said dedicated control channel generator comprises a MAC message.
Claim 26
Dependent Claim
26 words
The terminal communication device as claimed in claim 19 , wherein the control message generated from said dedicated control channel generator comprises an L3 signaling message.
Claim 27
Dependent Claim
33 words
The terminal communication device as claimed in claim 19 , wherein said dedicated control channel generator generates said control message in first and second frame sizes according to sizes of said control message.
Claim 28
Dependent Claim
26 words
The terminal communication device as claimed in claim 25 , wherein said first frame size is 5 ms and said second frame size is 20 ms.
Claim 29
Dependent Claim
28 words
The terminal communication device as claimed in claim 26 , wherein said dedicated control channel generator generates said control message discontinuously according to existence/nonexistence of said control message.
Claim 30
Dependent Claim
49 words
The terminal communication device as claimed in claim 19 , wherein said dedicated control channel generator generates said control message in a first frame size when said control message is an urgent control message and in a second frame size when said control message is a normal control message.
Claim 31
Dependent Claim
26 words
The terminal communication device as claimed in claim 28 , wherein said first frame size is 5 ms and said second frame size is 20 ms.
Claim 32
Dependent Claim
28 words
The terminal communication device as claimed in claim 29 , wherein said dedicated control channel generator generates said control message discontinuously according to existence/nonexistence of said control message.
Claim 33
Dependent Claim
21 words
The terminal communication device as claimed in claim 19 , wherein said supplemental channel generator allocates a plurality of supplemental channels.
Claim 34
Dependent Claim
27 words
The terminal communication device as claimed in claim 19 , wherein said dedicated control channel generator generates said control message at a data rate of 9.6 Kbps.
Claim 35
Dependent Claim
25 words
The terminal communication device as claimed in claim 32 , wherein the control message generated from said dedicated control channel generator comprises an RLP message.
Claim 36
Dependent Claim
25 words
The terminal communication device as claimed in claim 32 , wherein the control message generated from said dedicated control channel generator comprises a MAC message.
Claim 37
Dependent Claim
26 words
The terminal communication device as claimed in claim 32 , wherein the control message generated from said dedicated control channel generator comprises an L3 signaling message.
Claim 38
Dependent Claim
121 words
A terminal communication device for a CDMA communication system, comprising: a dedicated control channel generator for discontinuously generating a control message for a dedicated control channel, said control message having a frame length variable according to a control type and a data rate of 9.6 Kbps; a pilot channel generator for generating a pilot signal by adding a power control signal to said pilot signal thereby eliminating the need to assign a new channel to transmit the power control signal; a fundamental channel generator for generating a voice signal at a variable rate; a supplemental channel generator for generating data at a scheduled rate; and a spreader for spreading signals output from the channel generators with a PN (pseudo noise) sequence.
Claim 39
Dependent Claim
121 words
A terminal communication device for a CDMA communication system, comprising: a dedicated control channel generator for discontinuously generating a control message for a dedicated control channel, said control message having a frame length variable according to a control type and a data rate of 9.6 Kbps; a pilot channel generator for generating a pilot signal by adding a power control signal to said pilot signal thereby eliminating the need to assign a new channel to transmit the power control signal; a fundamental channel generator for generating a voice signal at a variable rate; a supplemental channel generator for generating data at a scheduled rate; and a spreader for spreading signals output from the channel generators with a PN (pseudo noise) sequence.
Claim 40
Dependent Claim
26 words
The terminal communication device as claimed in claim 36 , further comprising a controller for allocating an orthogonal code for dividing channels of said channel generators.
Claim 41
Dependent Claim
33 words
The terminal communication device as claimed in claim 37 , wherein said dedicated control channel generator generates said control message in first and second frame lengths according to sizes of said control message.
Claim 42
Dependent Claim
21 words
The terminal communication device as claimed in claim 38 , wherein said control message comprises RLP, MAC and L3 signaling messages.
Claim 43
Dependent Claim
23 words
The terminal communication device as claimed in claim 39 , wherein the scheduled rate of said supplemental channel generator is over 9.6 Kbps.
Claim 44
Dependent Claim
33 words
The terminal communication device as claimed in claim 40 , wherein the variable rate of said fundamental channel generator is a selected one of 9.6 Kbps, 4.8 Kbps, 2.4 Kbps and 1.2 Kbps.
Claim 45
Dependent Claim
222 words
A terminal communication device for a CDMA communication system, comprising: a dedicated control channel generator for discontinuously generating a control message for a dedicated control channel and spreading said control message with an orthogonal code for an allocated dedicated control channel to generate a dedicated control channel signal, said control message having a frame length variable according to a control type and having a data rate of 9.6 Kbps; a pilot channel generator for spreading a pilot signal and a power control signal added to said pilot signal by using an orthogonal code allocated for a pilot channel to generate a pilot channel signal thereby eliminating the need to assign a new channel to transmit the power control signal; a fundamental channel generator for spreading a voice signal with an orthogonal code allocated for a fundamental channel to generate a fundamental channel signal; a supplemental channel generator for spreading data with an orthogonal code allocated for a supplemental channel to generate a supplemental channel signal; an adder for generating a first channel signal by adding said dedicated control channel signal to said pilot channel signal, and generating a second channel signal by adding said fundamental channel signal to said supplemental channel signal; and a spreader for spreading said first and second channel signals with corresponding common PN sequences for a base station.
Claim 46
Dependent Claim
222 words
A terminal communication device for a CDMA communication system, comprising: a dedicated control channel generator for discontinuously generating a control message for a dedicated control channel and spreading said control message with an orthogonal code for an allocated dedicated control channel to generate a dedicated control channel signal, said control message having a frame length variable according to a control type and having a data rate of 9.6 Kbps; a pilot channel generator for spreading a pilot signal and a power control signal added to said pilot signal by using an orthogonal code allocated for a pilot channel to generate a pilot channel signal thereby eliminating the need to assign a new channel to transmit the power control signal; a fundamental channel generator for spreading a voice signal with an orthogonal code allocated for a fundamental channel to generate a fundamental channel signal; a supplemental channel generator for spreading data with an orthogonal code allocated for a supplemental channel to generate a supplemental channel signal; an adder for generating a first channel signal by adding said dedicated control channel signal to said pilot channel signal, and generating a second channel signal by adding said fundamental channel signal to said supplemental channel signal; and a spreader for spreading said first and second channel signals with corresponding common PN sequences for a base station.
Claim 47
Dependent Claim
31 words
The terminal communication device as claimed in claim 42 , wherein said dedicated control channel generator generates said control message in first and second frame lengths according to a message type.
Claim 48
Dependent Claim
27 words
The terminal communication device as claimed in claim 43 , wherein the control message of said dedicated control channel generator comprises RLP, MAC and L3 signal messages.
Claim 49
Dependent Claim
35 words
The terminal communication device as claimed in claim 44 , wherein said supplemental channel generator generates said packet data at a scheduled rate of over 9.6 Kbps according to a decision by the base station.
Claim 50
Dependent Claim
37 words
The terminal communication device as claimed in claim 45 , wherein said fundamental channel generator generates a voice signal having a data rate selected form variable rates of 9.6 Kbps, 4.8 Kbps, 2.4 Kbps and 1.2 Kbps.
Claim 51
Independent Claim
90 words
A method for communicating dedicated channel information in a base station for a CDMA communication system, comprising the steps of: allocating a dedicated fundamental channel for communicating the dedicated channel information and a dedicated control channel for communicating control information; transmitting information via the dedicated fundamental channel and the control information via a dedicated control channel; and upon termination of communication, releasing the dedicated fundamental channel and the dedicated control channel; wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.
Claim 52
Independent Claim
90 words
A method for communicating dedicated channel information in a base station for a CDMA communication system, comprising the steps of: allocating a dedicated fundamental channel for communicating the dedicated channel information and a dedicated control channel for communicating control information; transmitting information via the dedicated fundamental channel and the control information via a dedicated control channel; and upon termination of communication, releasing the dedicated fundamental channel and the dedicated control channel; wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.
Claim 53
Dependent Claim
21 words
The method as claimed in claim 47 , wherein the information transmitted via the dedicated fundamental channel includes voice or data.
Claim 54
Dependent Claim
42 words
The method as claimed in claim 48 , wherein the control information transmitted via the dedicated control channel includes one of a control message having a first frame length, and a control message and a user message having a second frame length.
Claim 55
Dependent Claim
24 words
The method as claimed in claim 49 , wherein the first frame length is 5 ms and the second frame length is 20 ms.
Claim 56
Dependent Claim
26 words
The method as claimed in claim 48 , wherein the dedicated control channel transmits power control bits for controlling a transmission power of a reverse link.
Claim 57
Independent Claim
84 words
A method for communicating data in a base station for a CDMA communication system, comprising the steps of: a) allocating a dedicated supplemental channel for communicating the data and a dedicated control channel for communicating control information; b) transmitting the data via the dedicated supplemental channel and the control information via the dedicated control channel; and c) upon termination of communication, releasing the dedicated channels; wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.
Claim 58
Independent Claim
84 words
A method for communicating data in a base station for a CDMA communication system, comprising the steps of: a) allocating a dedicated supplemental channel for communicating the data and a dedicated control channel for communicating control information; b) transmitting the data via the dedicated supplemental channel and the control information via the dedicated control channel; and c) upon termination of communication, releasing the dedicated channels; wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.
Claim 59
Dependent Claim
41 words
The method as claimed in claim 52 , wherein the step of releasing comprises the steps of: i) releasing the dedicated fundamental channel; and ii) transitioning to a control hold state to hold a connection state of the dedicated control channel.
Claim 60
Dependent Claim
50 words
The method as claimed in claim 53 , wherein the step of transitioning comprises the steps of: allocating the dedicated fundamental channel to restart communication when data communication is requested within a predefined time; and releasing the dedicated control channel when data communication is not requested within the predefined time.
Claim 61
Dependent Claim
42 words
The method as claimed in claim 52 , wherein the control information transmitted via the dedicated control channel includes one of a control message having a first frame length, and a control message and a user message having a second frame length.
Claim 62
Dependent Claim
24 words
The method as claimed in claim 55 , wherein the first frame length is 5 ms and the second frame length is 20 ms.
Claim 63
Dependent Claim
26 words
The method as claimed in claim 52 , wherein the dedicated control channel transmits power control bits for controlling a transmission power of a reverse link.
Claim 64
Independent Claim
112 words
A method for communicating dedicated channel information in a base station for a CDMA communication system, comprising the steps of: a) allocating a dedicated fundamental channel for communicating voice, a dedicated supplemental channel for communicating data and a dedicated control channel for communicating control information; b) transmitting the voice via the dedicated fundamental channel, the data via the dedicated supplemental channel and the control information via the dedicated control channel; c) upon termination of voice communication, releasing the dedicated fundamental channel; and d) upon termination of data communication, releasing the dedicated supplemental channel; wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.
Claim 65
Independent Claim
112 words
A method for communicating dedicated channel information in a base station for a CDMA communication system, comprising the steps of: a) allocating a dedicated fundamental channel for communicating voice, a dedicated supplemental channel for communicating data and a dedicated control channel for communicating control information; b) transmitting the voice via the dedicated fundamental channel, the data via the dedicated supplemental channel and the control information via the dedicated control channel; c) upon termination of voice communication, releasing the dedicated fundamental channel; and d) upon termination of data communication, releasing the dedicated supplemental channel; wherein the channel communicating the control information maintains a control hold status for a predetermined time before being released.
Claim 66
Dependent Claim
45 words
The method as claimed in claim 58 , wherein the step of releasing the dedicated supplemental channel comprises the steps of: i) releasing the dedicated supplemental channel; and ii) transitioning to a control hold state to hold a connection state of the dedicated control channel.
Claim 67
Dependent Claim
53 words
The method as claimed in claim 58 , wherein the step of releasing the dedicated supplemental channel comprises the steps of: releasing the dedicated supplemental channel and the dedicated control channel; holding a connection state of the dedicated fundamental channel; and communicating the voice and the control information via the dedicated fundamental channel.
Claim 68
Dependent Claim
35 words
The method as claimed in claim 60 , wherein when the dedicated control channel is released, power control information for controlling a transmission power of a reverse link is transmitted via the dedicated fundamental channel.
Claim 69
Dependent Claim
41 words
The method as claimed in claim 58 , wherein the step of releasing the dedicated supplemental channel comprises the steps of: releasing the dedicated supplemental channel; and holding a connection state of the dedicated fundamental channel and the dedicated control channel.
Claim 70
Dependent Claim
45 words
The method as claimed in claim 59 , wherein the step of releasing the dedicated fundamental channel comprises the steps of: i) releasing the dedicated control channel; and ii) transitioning to a control hold state to hold a connection state of the dedicated control channel.
Claim 71
Dependent Claim
45 words
The method as claimed in claim 60 , wherein the step of releasing the dedicated fundamental channel comprises the steps of: i) releasing the dedicated control channel; and ii) transitioning to a control hold state to hold a connection state of the dedicated control channel.
Claim 72
Dependent Claim
45 words
The method as claimed in claim 62 , wherein the step of releasing the dedicated fundamental channel comprises the steps of: i) releasing the dedicated control channel; and ii) transitioning to a control hold state to hold a connection state of the dedicated control channel.
Claim 73
Dependent Claim
51 words
The method as claimed in claim 63 , wherein the step of transitioning comprises the steps of: allocating the dedicated supplemental channel to restart the communication when data communication is requested within a predefined time; and releasing the dedicated control channel when data communication is not requested within the predefined time.
Claim 74
Dependent Claim
51 words
The method as claimed in claim 64 , wherein the step of transitioning comprises the steps of: allocating the dedicated supplemental channel to restart the communication when data communication is requested within a predefined time; and releasing the dedicated control channel when data communication is not requested within the predefined time.
Claim 75
Dependent Claim
51 words
The method as claimed in claim 65 , wherein the step of transitioning comprises the steps of: allocating the dedicated supplemental channel to restart the communication when data communication is requested within a predefined time; and releasing the dedicated control channel when data communication is not requested within the predefined time.
Claim 76
Dependent Claim
42 words
The method as claimed in claim 58 , wherein the control information transmitted via the dedicated control channel includes one of a control message having a first frame length, and a control message and a user message having a second frame length.
Claim 77
Dependent Claim
24 words
The method as claimed in claim 69 , wherein the first frame length is 5 ms and the second frame length is 20 ms.
Claim 78
Dependent Claim
26 words
The method as claimed in claim 58 , wherein the dedicated control channel transmits power control bits for controlling a transmission power of a reverse link.
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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) | 2007-04-20 | 2007-10-20 | 2008-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-04-20 | 2011-10-20 | 2012-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-04-20 | 2015-10-20 | 2016-04-20 | $7700.00 | Window Closed / Lapsed |