US6873626B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system, control method, and radio network controller preferably used for the system and method
Assignee: NTT Docomo Inc
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Filing: 2002-11-01
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Granted: 2005-03-29
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Expires: 2022-11-01
Abstract
Abstract It is an object of the present invention to provide a control system making it possible to maintain communication quality, decrease transmission delay, and simultaneously connect with numerous mobile stations 40 . The present invention is a control system for controlling the information rate through a downlink shared channel (DSCH) addressed to the mobile stations 40 , which is provided with a transmission power control information receiving unit 23 for receiving the transmission power control information for a downlink dedicated channel (A-DPCH) transmitted through an uplink dedicated channel (DPCH), transmission power control information accumulating unit 23 for accumulating the transmission power control information for the downlink dedicated channel, and information rate controlling unit 22 for controlling the information rate through a downlink shared channel addressed to the mobile stations 40 according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Inventors
- 👤 Takahiro Hayashi
- 👤 Yoshihiro Ishikawa
- 👤 Mikio Iwamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:19
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/18; H04W52/22; H04W52/226; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2628; H04B7/264; H04W52/221; H04W52/26; H04W52/30; H04W52/32; H04W52/325
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
171 words
A control system for controlling the information rate through a downlink shared channel addressed to a plurality of mobile stations in a mobile packet communication system for multiplexing and transmitting data signals addressed to a plurality of mobile stations through the downlink shared channel, transmitting control signals addressed to each of the mobile stations through a downlink dedicated channel, and receiving the data signals and the control signals from the mobile stations through an uplink dedicated channel, comprising: a transmission power control information receiving unit for receiving the transmission power control information for the downlink dedicated channel included in the control signals transmitted through the uplink dedicated channel; a transmission power control information accumulating unit for accumulating the received transmission power control information for the downlink dedicated channel; and an information rate controlling unit for controlling the information rate through the downlink shared channel addressed to the mobile stations corresponding to the downlink dedicated channel according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Claim 2
Dependent Claim
171 words
A control system for controlling the information rate through a downlink shared channel addressed to a plurality of mobile stations in a mobile packet communication system for multiplexing and transmitting data signals addressed to a plurality of mobile stations through the downlink shared channel, transmitting control signals addressed to each of the mobile stations through a downlink dedicated channel, and receiving the data signals and the control signals from the mobile stations through an uplink dedicated channel, comprising: a transmission power control information receiving unit for receiving the transmission power control information for the downlink dedicated channel included in the control signals transmitted through the uplink dedicated channel; a transmission power control information accumulating unit for accumulating the received transmission power control information for the downlink dedicated channel; and an information rate controlling unit for controlling the information rate through the downlink shared channel addressed to the mobile stations corresponding to the downlink dedicated channel according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Claim 3
Dependent Claim
45 words
The control system according to claim 1 , wherein the transmission power control information accumulating unit obtains the accumulated value in a predetermined observation period; and the information rate controlling unit controls the information rate according to the accumulated value in the predetermined observation period.
Claim 4
Dependent Claim
80 words
The control system according to claim 1 , wherein the transmission power control information accumulating unit accumulates first values which are positive values when the transmission power control information for the downlink dedicated channel designates increasing the transmission power of the downlink dedicated channel; and the transmission power control information accumulating unit accumulates second values which are negative values when the transmission power control information for the downlink dedicated channel designates decreasing the transmission power of the downlink dedicated channel.
Claim 5
Dependent Claim
62 words
The control system according to claim 1 , comprising an equivalence table for relating the accumulated value with the information rate; and wherein the information rate controlling unit retrieves the equivalence table according to the accumulated value of the transmission power control information for the downlink dedicated channel, and sets the information rate of the data signals corresponding to the accumulated value.
Claim 6
Dependent Claim
66 words
The control system according to claim 1 , wherein the information rate controlling unit decreases the information rate when the accumulated value of the information rate control information for the downlink dedicated channel is a positive value, and the information rate controlling unit increases the information rate when the accumulated value of the information rate control information for the downlink dedicated channel is a negative value.
Claim 7
Dependent Claim
152 words
A control method for controlling the information rate through a downlink shared channel addressed to a plurality of mobile stations in a mobile packet communication system for multiplexing and transmitting the data signals addressed to the mobile stations through the downlink shared channel, transmitting control signals addressed to the mobile stations through a downlink dedicated channel, and receiving the data signals and the control signals from the mobile stations through an uplink dedicated channel, comprising the steps of: (a) receiving the transmission power control information for the downlink dedicated channel included in the control signals transmitted through the uplink dedicated channel; (b) accumulating the received transmission power control information for the downlink dedicated channel; and (c) controlling the information rate through the downlink shared channel addressed to the mobile stations corresponding to the downlink dedicated channel according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Claim 8
Dependent Claim
152 words
A control method for controlling the information rate through a downlink shared channel addressed to a plurality of mobile stations in a mobile packet communication system for multiplexing and transmitting the data signals addressed to the mobile stations through the downlink shared channel, transmitting control signals addressed to the mobile stations through a downlink dedicated channel, and receiving the data signals and the control signals from the mobile stations through an uplink dedicated channel, comprising the steps of: (a) receiving the transmission power control information for the downlink dedicated channel included in the control signals transmitted through the uplink dedicated channel; (b) accumulating the received transmission power control information for the downlink dedicated channel; and (c) controlling the information rate through the downlink shared channel addressed to the mobile stations corresponding to the downlink dedicated channel according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Claim 9
Dependent Claim
43 words
The control method according to claim 6 , wherein, in the step (b), the accumulated value in a predetermined observation period is obtained; and in the step (c), the information rate is controlled according to the accumulated value in the predetermined observation period.
Claim 10
Dependent Claim
77 words
The control method according to claim 6 , wherein, in the step (b), the first values which are positive values are accumulated when the transmission power control information for the downlink dedicated channel designates increasing the transmission power of the downlink dedicated channel; and in the step (b), second values which are negative values are accumulated when the transmission power control information for the downlink dedicated channel designates decreasing the transmission power of the downlink dedicated channel.
Claim 11
Dependent Claim
73 words
The control method according to claim 6 , wherein, in the step (c), an equivalence table for relating the accumulated value of the transmission power control information for the downlink dedicated channel with the information rate of the data signals is retrieved according to the accumulated value; and in the step (c), an information rate corresponding to the accumulated value of the transmission power control information for the downlink dedicated channel is set.
Claim 12
Dependent Claim
66 words
The control method according to claim 6 , wherein, in the step (c), the information rate is decreased when the accumulated value of the transmission power control information for the downlink dedicated channel is a positive value; and in the step (c), the information rate is increased when the accumulated value of the transmission power control information for the downlink dedicated channel is a negative value.
Claim 13
Dependent Claim
154 words
A radio network controller used for a mobile packet communication system for multiplexing and transmitting data signals addressed to a plurality of mobile stations through a downlink shared channel, transmitting control signals addressed to the mobile stations through a downlink dedicated channel, and receiving the data signals and the control signals from the mobile stations through an uplink dedicated channel, comprising: a transmission power control information receiving unit for receiving the transmission power control information for the downlink dedicated channel included in the control signals transmitted through the uplink dedicated channel; a transmission power control information accumulating unit for accumulating the received transmission power control information for the downlink dedicated channel; and an information rate controlling unit for controlling the information rate through the downlink shared channel addressed to the mobile stations corresponding to the downlink dedicated channel according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Claim 14
Dependent Claim
154 words
A radio network controller used for a mobile packet communication system for multiplexing and transmitting data signals addressed to a plurality of mobile stations through a downlink shared channel, transmitting control signals addressed to the mobile stations through a downlink dedicated channel, and receiving the data signals and the control signals from the mobile stations through an uplink dedicated channel, comprising: a transmission power control information receiving unit for receiving the transmission power control information for the downlink dedicated channel included in the control signals transmitted through the uplink dedicated channel; a transmission power control information accumulating unit for accumulating the received transmission power control information for the downlink dedicated channel; and an information rate controlling unit for controlling the information rate through the downlink shared channel addressed to the mobile stations corresponding to the downlink dedicated channel according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Claim 15
Dependent Claim
44 words
The radio network controller according to claim 11 , wherein the transmission power control information accumulating unit obtains the accumulated value in a predetermined period; and the information rate controlling unit controls the information rate according to the accumulated value in the predetermined period.
Claim 16
Dependent Claim
81 words
The radio network controller according to claim 11 , wherein the transmission power control information accumulating unit accumulates first values which are positive values when the transmission power control information for the downlink dedicated channel designates increasing the transmission power of the downlink dedicated channel; and the transmission power control information accumulating unit accumulates second values which are negative values when the transmission power control information for the downlink dedicated channel designates decreasing the transmission power of the downlink dedicated channel.
Claim 17
Dependent Claim
64 words
The radio network controller according to claim 11 , comprising an equivalence table for relating the accumulated value with the information rate; and wherein the information rate controlling unit retrieves the equivalence table according to the accumulated value of the transmission power control information for the downlink dedicated channel; and the information rate controlling unit sets an information rate corresponding to the accumulated value.
Claim 18
Dependent Claim
67 words
The radio network controller according to claim 11 , wherein the information rate controlling unit decreases the information rate when the accumulated value of the transmission power control information for the downlink dedicated channel is a positive value; and the information rate controlling unit increases the information rate when the accumulated value of the transmission power control information for the downlink dedicated channel is a negative value.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-03-28 | 2008-09-27 | 2009-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-03-28 | 2012-09-27 | 2013-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-03-28 | 2016-09-27 | 2017-03-29 | $7700.00 | Window Closed / Lapsed |