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US7177658B2
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Multi-media broadcast and multicast service (MBMS) in a wireless communications system
Assignee: Qualcomm Inc
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Filing: 2002-05-06
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Granted: 2007-02-13
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Expires: 2022-05-06
Abstract
Abstract Techniques to implement MBMS services in a wireless communication system. In one aspect, a method is provided for processing data for transmission to a plurality of terminals. Frames of information bits (which may have variable rates) are provided to a buffer implementing a matrix. The matrix is padded with padding bits based on a particular padding scheme to support variable frame rates. The frames are then coded based on a particular block code to provide parity bits. The frame of information bits and the parity bits are then transmitted to the terminals. In another aspect, a method is provided for controlling the transmit power of a data transmission to a plurality of terminals. In accordance with the method, TPC streams are received from the terminals and processed to obtain a stream of joint power control commands used to adjust the transmit power of the data transmission.
Inventors
- 👤 Serge Willenegger
- 👤 Tao Chen
- 👤 Alkinoos Hector Vayanos
- 👤 Yongbin Wei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:06
CPC Classifications
H; H04; H04W; H04W4/00; H04W4/06; H04W52/00; H04W52/04; H04W52/30; H04W52/32; H04W52/322; H03; H03M; H03M13/00; H03M13/27; H03M13/2703; H03M13/2707; H03M13/29; H03M13/2906; H03M13/2909; H03M13/2915; H03M13/37; H03M13/373; H04L; H04L1/00; H04L1/0001; H04L1/0002; H04L1/0015; H04L1/0017; H04L1/0023; H04L1/0026; H04L1/0027; H04L1/004; H04L1/0041; H04L1/0056; H04L1/0057; H04L1/0067; H04L1/0078; H04L1/0083; H04L5/00; H04L5/22; H04W52/325; H04W52/327; H04W52/38; H04W52/40; H04W72/00; H04W72/04; H04W72/044; H04W72/0446; H04W72/30; H03M13/03; H03M13/05; H03M13/09; H03M13/13; H03M13/15; H03M13/151; H03M13/1515; H03M13/152; H03M13/19; H03M13/23; H03M13/2957; H04B; H04B1/00; H04B1/69; H04B1/707; H04B1/7097; H04B1/711; H04B1/7115; H04B1/712; H04B2201/00; H04B2201/69; H04B2201/707; H04B2201/70707; H04L1/0071; H04L1/08
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
164 words
In a wireless communication system, a method for processing data for transmission to a plurality of terminals, comprising: providing a plurality of frames of information bits to a buffer implementing a matrix, wherein the frames may have variable rates and each frame may include a particular number of information bits that is different from those of other frames provided to the matrix; padding the matrix with padding bits based on a particular padding scheme; and coding the plurality of frames of information bits based on a particular code to provide a plurality of parity bits, and wherein the frames of information bits and the parity bits are transmitted to the plurality of terminals; wherein one frame is provided to each row of the matrix, and wherein an unused portion of each row is padded with padding bits; wherein each row of the matrix has a size M corresponding to less than a maximum number of information bits expected to be received for a frame.
Claim 2
Dependent Claim
164 words
In a wireless communication system, a method for processing data for transmission to a plurality of terminals, comprising: providing a plurality of frames of information bits to a buffer implementing a matrix, wherein the frames may have variable rates and each frame may include a particular number of information bits that is different from those of other frames provided to the matrix; padding the matrix with padding bits based on a particular padding scheme; and coding the plurality of frames of information bits based on a particular code to provide a plurality of parity bits, and wherein the frames of information bits and the parity bits are transmitted to the plurality of terminals; wherein one frame is provided to each row of the matrix, and wherein an unused portion of each row is padded with padding bits; wherein each row of the matrix has a size M corresponding to less than a maximum number of information bits expected to be received for a frame.
Claim 3
Dependent Claim
31 words
The method of claim 1 , wherein each row of the matrix has a size M corresponding to a maximum number of information bits expected to be received for a frame.
Claim 4
Dependent Claim
31 words
The method of claim 1 , wherein each row of the matrix has a size M corresponding to an average number of information bits expected to be received for a frame.
Claim 5
Dependent Claim
18 words
The method of claim 1 , wherein the matrix includes a fixed number of frames of information bits.
Claim 6
Dependent Claim
35 words
The method of claim 4 , wherein the particular code used to code the plurality of frames in the matrix is selected based on a particular number of rows of information bits in the matrix.
Claim 7
Dependent Claim
18 words
The method of claim 1 , wherein each matrix includes a fixed number of rows of information bits.
Claim 8
Dependent Claim
35 words
The method of claim 6 , wherein the particular code used to code the plurality of frames in the matrix is selected based on a particular number of frames occupying multiple rows in the matrix.
Claim 9
Dependent Claim
36 words
The method of claim 1 , wherein the plurality of frames are provided to the matrix without padding, and wherein only an unused portion of a last row of information bits is padded with padding bits.
Claim 10
Dependent Claim
21 words
The method of claim 1 , wherein the plurality of frames are coded code column-wise in the matrix with a block.
Claim 11
Dependent Claim
15 words
The method of claim 9 , wherein the block code is a linear block code.
Claim 12
Dependent Claim
15 words
The method of claim 9 , wherein the block code is a systematic block code.
Claim 13
Dependent Claim
25 words
The method of claim 9 , wherein only parity bits in columns of the matrix having information bits are transmitted to the plurality of terminals.
Claim 14
Dependent Claim
22 words
The method of claim 1 , further comprising: transmitting information indicative of a structure of the matrix to the plurality of terminals.
References Cited (Backward Citations)
US5709541A
Cited
US6091777A
Cited
US6353637B1
Cited
US20020009061A1
Cited
US6804223B2
Cited
US20030134655A1
Cited
US20030036384A1
Cited
US20030114177A1
Cited
US20030036403A1
Cited
US20030035389A1
Cited
US20030072384A1
Cited
US20030106008A1
Cited
US20030139140A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-02-12 | 2010-08-14 | 2011-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-02-12 | 2014-08-14 | 2015-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-02-12 | 2018-08-14 | 2019-02-13 | $7700.00 | Window Closed / Lapsed |