CA2200960A1 - Multiple band radio - Google Patents
Multiple band radioInfo
- Publication number
- CA2200960A1 CA2200960A1 CA002200960A CA2200960A CA2200960A1 CA 2200960 A1 CA2200960 A1 CA 2200960A1 CA 002200960 A CA002200960 A CA 002200960A CA 2200960 A CA2200960 A CA 2200960A CA 2200960 A1 CA2200960 A1 CA 2200960A1
- Authority
- CA
- Canada
- Prior art keywords
- frequencies
- transmit
- synthesizers
- path
- base stations
- 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.)
- Granted
Links
Abstract
The dual band code division multiple access radio of the present invention operates on multiple frequencies simultaneously on either transmit or receive. The transmit path operates by splitting the transmit intermediate frequency (IF) path (103) and mixing the IF to two different transmit frequencies using two frequency synthesizers (140 and 145).
The receive path (104) has two RF channels (116 and 117) that are mixed with the frequencies generated by the synthesizers (140 and 145) and summed into one IF strip. Thus the radio of the present invention can perform a soft hand-off between frequencies while communicating with both base stations simultaneously. Additional mixing paths and synthesizers can be added if it is desired to communicate with more than two base stations simultaneously.
The receive path (104) has two RF channels (116 and 117) that are mixed with the frequencies generated by the synthesizers (140 and 145) and summed into one IF strip. Thus the radio of the present invention can perform a soft hand-off between frequencies while communicating with both base stations simultaneously. Additional mixing paths and synthesizers can be added if it is desired to communicate with more than two base stations simultaneously.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/316,188 US5758266A (en) | 1994-09-30 | 1994-09-30 | Multiple frequency communication device |
US316,188 | 1994-09-30 | ||
PCT/US1995/012388 WO1996010871A1 (en) | 1994-09-30 | 1995-09-27 | Multiple band radio |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2200960A1 true CA2200960A1 (en) | 1996-04-11 |
CA2200960C CA2200960C (en) | 2005-11-29 |
Family
ID=35520596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2200960 Expired - Fee Related CA2200960C (en) | 1994-09-30 | 1995-09-27 | Multiple band radio |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2200960C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115913122A (en) * | 2023-01-09 | 2023-04-04 | 北京思信飞扬信息技术股份有限公司 | Method and system for generating radio frequency signal |
-
1995
- 1995-09-27 CA CA 2200960 patent/CA2200960C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115913122A (en) * | 2023-01-09 | 2023-04-04 | 北京思信飞扬信息技术股份有限公司 | Method and system for generating radio frequency signal |
Also Published As
Publication number | Publication date |
---|---|
CA2200960C (en) | 2005-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |