RU2000104858A - METHOD FOR FORMING A QUASI ORTHOGONAL CODE AND AN EXTENDER USING THIS METHOD IN A MOBILE COMMUNICATION SYSTEM - Google Patents
METHOD FOR FORMING A QUASI ORTHOGONAL CODE AND AN EXTENDER USING THIS METHOD IN A MOBILE COMMUNICATION SYSTEMInfo
- Publication number
- RU2000104858A RU2000104858A RU2000104858/09A RU2000104858A RU2000104858A RU 2000104858 A RU2000104858 A RU 2000104858A RU 2000104858/09 A RU2000104858/09 A RU 2000104858/09A RU 2000104858 A RU2000104858 A RU 2000104858A RU 2000104858 A RU2000104858 A RU 2000104858A
- Authority
- RU
- Russia
- Prior art keywords
- quasi
- codes
- orthogonal
- correlation
- orthogonal codes
- Prior art date
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Claims (15)
где Si(t) представляет квазиортогональные коды, Wi(t) представляет коды Уолша, N равно длине кодов Уолша, М - переменная, зависящая от изменения скорости передачи данных, a представляет минимальное предельное значение частной корреляции.3. The device according to p. 2, characterized in that the minimum limit value of the partial correlation satisfies the first condition, presented in the form
where S i (t) represents quasi-orthogonal codes, W i (t) represents Walsh codes, N is equal to the length of Walsh codes, M is a variable depending on the change in data rate, a represents the minimum limit value of the partial correlation.
и минимальное значение полной корреляции с другими квазиортогональными кодами удовлетворяет третьему условию, представленному в виде
где Si(t) представляет квазиортогональные коды, Wi(t) представляет коды Уолша, N равно длине кодов Уолша, М - переменная, зависящая от изменения скорости передачи данных, θNmin представляет минимальное предельное значение частной корреляции, a S'i(t) представляет другие квазиортогональные коды.5. The device according to p. 4, characterized in that the minimum value of full correlation with Walsh codes satisfies the second condition, presented in the form
and the minimum value of full correlation with other quasi-orthogonal codes satisfies the third condition, presented in the form
where S i (t) represents quasi-orthogonal codes, W i (t) represents Walsh codes, N is equal to the length of Walsh codes, M is a variable depending on the change in data rate, θ Nmin represents the minimum limit value of the partial correlation, and S ' i ( t) represents other quasi-orthogonal codes.
где Si(t) представляет квазиортогональные коды, Wi(t) представляет коды Уолша, N равно длине кодов Уолша, М - переменная, зависящая от изменения скорости передачи данных, а представляет минимальное предельное значение частной корреляции.9. The method according to p. 8, characterized in that the minimum value of the partial correlation satisfies the first condition, presented in the form
where S i (t) represents quasi-orthogonal codes, W i (t) represents Walsh codes, N is equal to the length of the Walsh codes, M is a variable depending on changes in the data rate, and represents the minimum limit value of the partial correlation.
а минимальное значение полной корреляции с другими квазиортогональными кодами удовлетворяет третьему условию, представленному в виде
где Si(t) представляет квазиортогональные коды, Wi(t) представляет коды Уолша, N равно длине кодов Уолша, М - переменная, зависящая от изменения скорости передачи данных, θNmin представляет минимальное предельное значение частной корреляции, a S'i(t) представляет другие квазиортогональные коды.11. The method according to p. 10, characterized in that the minimum value of full correlation with Walsh codes satisfies the second condition, presented in the form
and the minimum value of full correlation with other quasi-orthogonal codes satisfies the third condition, presented in the form
where S i (t) represents quasi-orthogonal codes, W i (t) represents Walsh codes, N is equal to the length of Walsh codes, M is a variable depending on the change in data rate, θ Nmin represents the minimum limit value of the partial correlation, and S ' i ( t) represents other quasi-orthogonal codes.
где 1= 0, 1, 2, . . . , M-1, Wk(t) представляет k-й ортогональный код длиной N (1≤k≤N), a Si(t) представляет квазиортогональный код длиной N(1≤i≤X), где X представляет собой номер квазиортогонального кода, удовлетворяющего уравнениям (5) - (7).15. A method of generating quasi-orthogonal codes of length N in a mobile communication system using Walsh codes and quasi-orthogonal codes, comprising providing a variety of conditions and generating quasi-orthogonal codes corresponding to the mentioned conditions, the conditions being that the full correlation between the ith Walsh code Wk ( t) (1≤k≤N, 1≤t≤N) and the ith quasi-orthogonal code S i (t) (1≤k≤N, 1≤t≤N) does not exceed θ Nmin as indicated in equation (5) , the full correlation between the ith row and the ith row of quasi-orthogonal codes does not exceed θ Nmin , as indicated in equation (6), and when using quasi-orthogonal codes of length n and Walsh codes of length N / M, the partial correlation between the corresponding codes of length N / M does not exceed as indicated in equation (7)
where 1 = 0, 1, 2,. . . , M-1, Wk (t) represents the kth orthogonal code of length N (1≤k≤N), and S i (t) represents the quasi-orthogonal code of length N (1≤i≤X), where X is the number of the quasi-orthogonal code satisfying equations (5) - (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1997/46402 | 1997-09-09 | ||
| KR1019970046402A KR100365346B1 (en) | 1997-09-09 | 1997-09-09 | Quasi-orthogonal Code Generation and Band Spreading Approach using Quasi-Orthogonal Code in Mobile Communication System |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2178621C2 RU2178621C2 (en) | 2002-01-20 |
| RU2000104858A true RU2000104858A (en) | 2002-01-27 |
Family
ID=19521072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2000104858A RU2178621C2 (en) | 1997-09-09 | 1998-09-09 | Process of formation of quasi-orthogonal code and device employing this process in mobile communication system |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6377539B1 (en) |
| EP (1) | EP1013009B1 (en) |
| JP (2) | JP3888852B2 (en) |
| KR (1) | KR100365346B1 (en) |
| CN (1) | CN1160878C (en) |
| BR (1) | BR9812038A (en) |
| CA (1) | CA2298690C (en) |
| DE (1) | DE69833382T2 (en) |
| ES (1) | ES2256956T3 (en) |
| RU (1) | RU2178621C2 (en) |
| WO (1) | WO1999013599A1 (en) |
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-
1997
- 1997-09-09 KR KR1019970046402A patent/KR100365346B1/en not_active Expired - Fee Related
-
1998
- 1998-09-09 DE DE1998633382 patent/DE69833382T2/en not_active Expired - Fee Related
- 1998-09-09 EP EP98944316A patent/EP1013009B1/en not_active Expired - Lifetime
- 1998-09-09 BR BR9812038A patent/BR9812038A/en not_active IP Right Cessation
- 1998-09-09 CA CA 2298690 patent/CA2298690C/en not_active Expired - Fee Related
- 1998-09-09 CN CNB988084910A patent/CN1160878C/en not_active Expired - Lifetime
- 1998-09-09 JP JP2000511270A patent/JP3888852B2/en not_active Expired - Fee Related
- 1998-09-09 US US09/149,924 patent/US6377539B1/en not_active Expired - Lifetime
- 1998-09-09 WO PCT/KR1998/000274 patent/WO1999013599A1/en not_active Ceased
- 1998-09-09 RU RU2000104858A patent/RU2178621C2/en not_active IP Right Cessation
- 1998-09-09 ES ES98944316T patent/ES2256956T3/en not_active Expired - Lifetime
-
2003
- 2003-12-10 JP JP2003412580A patent/JP3895721B2/en not_active Expired - Fee Related
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