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Junior Member
Reputation: 10
PCI MOD3 Check
Hi Experts,
is there any way to check PCI MOD3 using atoll, and if not please can you tell me about easier tool to use.
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Post Thanks - 1 Thanks
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2018-09-30 10:16 PM
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Senior Member
Reputation: 491
Re: PCI MOD3 Check
Dears,
Can you help us for this topic
can Actix or unet too help in this check ?
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Senior Member
Reputation: 491
Re: PCI MOD3 Check
also what;s the formula used to calculate PCI MOD3?
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VIP Member
Reputation: 2049
Re: PCI MOD3 Check
Formulas for calculating PCI for Atoll are described in Atoll_3.X.X_Technical_Reference_Guide_Radio
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Senior Member
Reputation: 491
Re: PCI MOD3 Check
Originally Posted by
slava121
Formulas for calculating PCI for Atoll are described in Atoll_3.X.X_Technical_Reference_Guide_Radio
no I mean how can I get PCI MOD3 value from current existing PCI
for example:
what's PCI Mod3 value for PCI = 394
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VIP Member
Reputation: 2049
Re: PCI MOD3 Check
ВPerhaps you did not understand your question correctly.The PCI value is calculated as follows: PCI = SSS * 3 + PSS. You can interpret the formula as follows: PCI = Cell Group Namber * 3 + Cell Namber.
The value of PCI = 394 was obtained as follows: PCI = 131 * 3 + 1, where - 131 (SSS group (0-167); 1 - PSS (0,1,2)
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Post Thanks - 1 Thanks
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Senior Member
Reputation: 491
Re: PCI MOD3 Check
Originally Posted by
slava121
В
The value of PCI = 394 was obtained as follows: PCI = 131 * 3 + 1, where - 131 (SSS group (0-167); 1 - PSS (0,1,2)
Exactly, how did you reach this result?
is there a table or function?
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VIP Member
Reputation: 2049
Re: PCI MOD3 Check
Checking the PCI modulo "3" (a mod b) means finding the remainder of the division. Your example is PCI = 394. 394 mod 3 = 1.
More clearly: 394/3 = 131 + 1. Where 131 is a cell group identifier (SSS) (site), 1 is a cell number (PSS). In the case of a three sector base station:
PCI SSS PSS
395 131 2
394 131 1
393 131 0
Table PCI is possible. You can create the table yourself, taking into account the planning of using PCI for your network. Some info:
PCI is calculated based on the primary PSS and secondary synchronization signals SSS. The formula for calculating PCI: PCI = SSS * 3 + PSS.
The primary synchronization signal (PSS) consists of three 62-bit Zadova-Chu sequences with numbers 0, 1 and 2. These are complex sequences with good correlation properties that are easily distinguishable at reception. To eliminate interference, it is necessary that different synchro sequences (0,1,2) are used in neighboring cells.
The secondary SSS synchronization signal is a 62-bit M-sequence and is the identifier of a group of cells.
(or site ID). This cell group identifier can take a value from the range 0 ... 167. When planning a network for sites whose service areas are nearby or overlap, you must use different identifiers to reduce interference. There are a total of 168 different identifiers of groups of cells, so each of them can be repeated through several sites.
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Post Thanks - 2 Thanks
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Re: PCI MOD3 Check
VERY GOOD SVALA PERFECT. THANK YOU
[QUOTE = slava121; 272465] Comprobar el módulo PCI "3" (a mod b) significa encontrar el resto de la división. Su ejemplo es PCI = 394. 394 mod 3 = 1.
Más claramente: 394/3 = 131 + 1. Donde 131 es un identificador de grupo de células (SSS) (sitio), 1 es un número de celda (PSS). En el caso de una estación base de tres sectores:
PCI SSS PSS
395 131 2
394 131 1
393 131 0
Tabla PCI es posible. Puede crear la tabla usted mismo, teniendo en cuenta la planificación del uso de PCI para su red. Alguna información:
PCI se calcula en función del PSS primario y las señales de sincronización secundarias SSS. La fórmula para calcular PCI: PCI = SSS * 3 + PSS.
La señal de sincronización primaria (PSS) consta de tres secuencias de Zadova-Chu de 62 bits con los números 0, 1 y 2. Estas son secuencias complejas con buenas propiedades de correlación que son fácilmente distinguibles en la recepción. Para eliminar la interferencia, es necesario que se utilicen diferentes secuencias sincronizadas (0,1,2) en las celdas vecinas.
La señal de sincronización SSS secundaria es una secuencia M de 62 bits y es el identificador de un grupo de celdas.
(o ID del sitio). Este identificador de grupo de celdas puede tomar un valor del rango 0 ... 167. Al planificar una red para sitios cuyas áreas de servicio están cercanas o se superponen, debe usar diferentes identificadores para reducir la interferencia. Hay un total de 168 identificadores diferentes de grupos de células, por lo que cada uno de ellos puede repetirse en varios sitios. [/ QUOTE]
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Junior Member
Reputation: 10
Re: PCI MOD3 Check
thanks to all for response, but in other side i can audit by atoll, but i have troubles with weights configuration.
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