CA2320638C - Systeme de communication amdc a etalement du spectre - Google Patents
Systeme de communication amdc a etalement du spectre Download PDFInfo
- Publication number
- CA2320638C CA2320638C CA002320638A CA2320638A CA2320638C CA 2320638 C CA2320638 C CA 2320638C CA 002320638 A CA002320638 A CA 002320638A CA 2320638 A CA2320638 A CA 2320638A CA 2320638 C CA2320638 C CA 2320638C
- Authority
- CA
- Canada
- Prior art keywords
- pcn
- cdma
- spread spectrum
- data signal
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001228 spectrum Methods 0.000 title claims abstract description 141
- 238000004891 communication Methods 0.000 title abstract description 25
- 230000001413 cellular effect Effects 0.000 claims abstract description 109
- 238000012545 processing Methods 0.000 claims abstract description 38
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 description 17
- 230000002452 interceptive effect Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000009990 desizing Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/622,235 US5351269A (en) | 1990-12-05 | 1990-12-05 | Overlaying spread spectrum CDMA personal communications system |
| US622,235 | 1990-12-05 | ||
| CA002091784A CA2091784C (fr) | 1990-12-05 | 1991-12-03 | Systeme de communication amdc a etalement du spectre |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002091784A Division CA2091784C (fr) | 1990-12-05 | 1991-12-03 | Systeme de communication amdc a etalement du spectre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2320638A1 CA2320638A1 (fr) | 1992-06-06 |
| CA2320638C true CA2320638C (fr) | 2004-04-27 |
Family
ID=25675996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002320638A Expired - Lifetime CA2320638C (fr) | 1990-12-05 | 1991-12-03 | Systeme de communication amdc a etalement du spectre |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2320638C (fr) |
-
1991
- 1991-12-03 CA CA002320638A patent/CA2320638C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2320638A1 (fr) | 1992-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |