US7062295B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio communication system and scheduling method
Assignee: Godo Kaisha IP Bridge 1
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Filing: 2003-06-13
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Granted: 2006-06-13
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Expires: 2023-06-13
Abstract
Abstract A radio communication system and scheduling method where, when data are transmitted from a plurality of transmit antennas to respective different mobile station apparatuses, all the mobile station apparatuses precisely receive data addressed thereto. A scheduler ( 104 ) performs scheduling that determines a data transmit order, depending on the numbers of receive antennas of the respective mobile station apparatuses, and notifies a transmit antennas assignment signal generator ( 124 ) of which transmit antenna is assigned which mobile station apparatus's sub-stream as the scheduling result. A number of receive antennas notifying signal decoder ( 122 ) decodes the number of receive antennas notifying signals and notifies the number of the receive antennas of each mobile station apparatus to the scheduler ( 104 ). The transmit antennas assignment signal generator ( 124 ) generates the transmit antennas assignment signal indicating which transmit antenna is assigned which mobile station apparatus's sub-stream.
Inventors
- 👤 Isamu Yoshii
- 👤 Mitsuru Uesugi
- 👤 Toshiyuki Uehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:03
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/0413; H04B7/0452; H04B7/06; H04B7/0613; H04B7/0615; H04B7/0619; H04B7/0621; H04B7/0628; H04W; H04W72/00; H04W72/50; H04W72/54; H04W72/542; H04B7/0602; H04B7/0604
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
159 words
A radio communication system that has a mobile station apparatus group of which at least one mobile station apparatus is provided with a plurality of receive antennas and a base station apparatus that transmits data to said mobile station apparatus group via a plurality of transmit antennas, wherein: each mobile station apparatus of said mobile station apparatus group comprises: a number of receive antennas notifying signal transmit section that transmits a number of receive antennas notifying signal indicating the number of receive antennas provided for the mobile station apparatus; and said base station apparatus comprises: a number of receive antennas notifying signal receive section that receives said number of receive antennas notifying signals; a transmit order determining section that determines order in which data are transmitted based on said number of receive antennas notifying signals received; and a data transmit section that assigns the data to said plurality of transmit antennas according to the determined transmit order and transmits.
Claim 2
Dependent Claim
159 words
A radio communication system that has a mobile station apparatus group of which at least one mobile station apparatus is provided with a plurality of receive antennas and a base station apparatus that transmits data to said mobile station apparatus group via a plurality of transmit antennas, wherein: each mobile station apparatus of said mobile station apparatus group comprises: a number of receive antennas notifying signal transmit section that transmits a number of receive antennas notifying signal indicating the number of receive antennas provided for the mobile station apparatus; and said base station apparatus comprises: a number of receive antennas notifying signal receive section that receives said number of receive antennas notifying signals; a transmit order determining section that determines order in which data are transmitted based on said number of receive antennas notifying signals received; and a data transmit section that assigns the data to said plurality of transmit antennas according to the determined transmit order and transmits.
Claim 3
Dependent Claim
50 words
The radio communication system according to claim 1 , wherein said base station apparatus further comprises: a transmit antennas assignment signal transmit section that transmits a transmit antennas assignment signal for notifying assignment of data to said plurality of transmit antennas, which assignment is set by said data transmit section.
Claim 4
Dependent Claim
64 words
The radio communication system according to claim 1 , wherein said transmit order determining section determines a transmit order so as to transmit the same number of different data as the receive antennas of a mobile station apparatus, having the smallest number of receive antennas, from among mobile station apparatuses as partners to which to transmit data simultaneously via said plurality of transmit antennas.
Claim 5
Dependent Claim
112 words
The radio communication system according to claim 1 , wherein: each mobile station apparatus of said mobile station apparatus group further comprises: a link quality measuring section that measures link qualities between the plurality of transmit antennas of said base station apparatus and receive antennas of the mobile station apparatus; and a link quality information transmit section that transmits information about the measured link qualities; and said base station apparatus further comprises: a link quality information receive section that receives the link quality information, wherein said transmit order determining section determines order in which data are transmitted based on the link quality information and the number of receive antennas notifying signals received.
Claim 6
Dependent Claim
88 words
A base station apparatus that transmits data via a plurality of transmit antennas, comprising: a number of receive antennas notifying signal receive section that receives number of receive antennas notifying signals indicating the numbers of receive antennas provided for communication partner stations; a transmit order determining section that determines order in which data are transmitted based on said number of receive antennas notifying signals received; and a data transmit section that assigns the data to said plurality of transmit antennas according to the determined transmit order and transmits.
Claim 7
Dependent Claim
88 words
A base station apparatus that transmits data via a plurality of transmit antennas, comprising: a number of receive antennas notifying signal receive section that receives number of receive antennas notifying signals indicating the numbers of receive antennas provided for communication partner stations; a transmit order determining section that determines order in which data are transmitted based on said number of receive antennas notifying signals received; and a data transmit section that assigns the data to said plurality of transmit antennas according to the determined transmit order and transmits.
Claim 8
Dependent Claim
45 words
The base station apparatus according to claim 5 , further comprising: a transmit antennas assignment signal transmit section that transmits a transmit antennas assignment signal for notifying assignment of data to said plurality of transmit antennas, which assignment is set by said data transmit section.
Claim 9
Dependent Claim
62 words
The base station apparatus according to claim 5 , wherein said transmit order determining section determines a transmit order so as to transmit the same number of different data as the receive antennas of a communication partner station, having the smallest number of receive antennas, from among communication partner stations to which to transmit data simultaneously via said plurality of transmit antennas.
Claim 10
Dependent Claim
66 words
The base station apparatus according to claim 5 , further comprising: a link quality information receive section that receives link quality information indicating link qualities between said plurality of transmit antennas and receive antennas of communication partner stations, wherein said transmit order determining section determines order in which data are transmitted based on the link quality information and the number of receive antennas notifying signals received.
Claim 11
Dependent Claim
38 words
The base station apparatus according to claim 8 , wherein said data transmit section changes modulation schemes and encoding schemes for data assigned to said plurality of transmit antennas, adaptively depending on said link quality information and transmits.
Claim 12
Dependent Claim
30 words
The base station apparatus according to claim 5 , wherein said data transmit section superimposes data assigned respectively to said plurality of antennas on a plurality of carriers and transmits.
Claim 13
Dependent Claim
56 words
A mobile station apparatus that communicates with the base station apparatus according to claim 5 , the mobile station apparatus comprising: a number of receive antennas notifying signal transmit section that transmits a number of receive antennas notifying signal indicating the number of receive antennas provided for the mobile station apparatus to said base station apparatus.
Claim 14
Dependent Claim
51 words
A scheduling method comprising the steps of: acquiring the numbers of receive antennas of communication partner stations; determining order in which data are transmitted based on the acquired numbers of the receive antennas; and assigning the data to a plurality of transmit antennas according to the determined transmit order and transmitting.
Claim 15
Dependent Claim
51 words
A scheduling method comprising the steps of: acquiring the numbers of receive antennas of communication partner stations; determining order in which data are transmitted based on the acquired numbers of the receive antennas; and assigning the data to a plurality of transmit antennas according to the determined transmit order and transmitting.
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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) | 2009-06-12 | 2009-12-12 | 2010-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-06-12 | 2013-12-12 | 2014-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-06-12 | 2017-12-12 | 2018-06-13 | $7700.00 | Window Closed / Lapsed |