Apakah Pola SFH

Pola SFH yang kita kenal pada umumnya adalah 1 x 1 dan 1 x 3
lalu ada lagi nih pertanyaan kalau 3 x 1?
hmmm menurut................
Analisiissss Saiyyyaaa (kata butet :p )

1 x 1 itu kan dalam 1 site misal ada 3 sektor dan ketiga sektor itu memakai MALIST yang sama.
1 x 3 itu kan dalam 1 site misal ada 3 sektor dan ketiga sektor itu memakai MALIST yang berbeda.
berarti kalau 3 x 1 adalah ada tiap 3 site (dalam 1 cluster mungkin) memakai MALIST yang sama, hehe bener ga? :D kalau salah kasih tahu dong master yang sedang membaca blog ini :)

soalnya saya belum menemukan referensi yang memberitahukan ,jadi yah analisis sendiri deh.

o iyah ada bacaan bagus nih yang saya temukan dari internet tentang planning :)
silahkan diunduh di sini Frequency Planning Concept

Hubungan Combiner dengan Frequency Hopping

Sedang mencari-cari informasi tentang combiner, didapat penjelasan berikut ini :

A combiner is a device at the base station that allows connection
of several transmitters to one antenna. There are two types of combiners hybrid and filter. Hybrid combiner can combine two incoming transmitter signals to one outgoing signal and allows all frequencies. A filter combiner allows only a selected frequency in the transmit band to pass through.and duplexer means you can use the same antenna both uplink and downlink paths.

 Pada prinsipnya iya sih udah tau kalau kerja combiner itu menggabungkan beberapa tansmitter ke satu antena. Tipe-tipenya adalah hybrid dan filter, dan lalu mengapa saya membahas ini?
 Karena saya tergelitik dengan pertanyaan apakah perbedaan antara SFH dan BB ? pada prinsipnya saya sudah tahu perbedaannya , namun pertanyaan berlanjut ke mengapa pada SFH ....TRX0 tidak ikut dihopping? lalu pada BB TRX0 hopping semua kecuali timeslot bcch.
Ketika memperhatikan skema gambar perbedaan antara keduanya, barulah saya tidak menganggap remeh lagi yaitu penggunaan tipe combiner yang berbeda antara keduanya. Seingat saya, SFH memakai hybrid combiner sedangkan BB memakai filter combiner.

Semoga benar yah.

Paging Success Ratio, IRAT Failure, CPICH power

Iklann lewatttt...sepintas sore ini

 Paging Success Ratio:
adalah respons paging ke attempt paging (banyaknya percobaan paging) dalam jaringan WCDMA UMTS.
Nilai yang baiknya adalah di atas 90%.

  IRAT Failure :
IRAT = Inter Radio Access Technology
Ada beberapa penyebab untuk kegagalan IRAT / IRAT Failure di jaringan seluler.
4 Penyebab utamanya adalah :

1. Missing relation ke 2G
2. Tidak adanya 2G resources
3. Poor 2G Coverage
4. Missing relation ke 3G

Tambahan dari telecomfunda nih:

What is a typical CPICH power?

CPICH power typically takes about 10% of the total NodeB power.  For a 20W (43dBm) NodeB, CPICH is around 2W (33dBm).

In urban areas where in-building coverage is taken care of by in-building installations, the CPICH may sometimes go as low as 5% because:

• The coverage area is small since users are close to the site, and
• More power can be allocated to traffic channels.

Multimedia Broadcast Multicast Services (MBMS)

Apa itu MBMS?

MBMS adalah spesifikasi interface point to point untuk jaringan seluler 3GPP baik existing maupun yg akan datang, yang didesain untuk menyediakan pengiriman efisien dari layanan broadcast dan multicast kedua"nya baik di dalam cell maupun jaringan inti. Untuk transmisi broadcast melalui beberapa jaringan, ia mendefinisikan transmisi melalui konfigurasi jaringan single frekuensi. Aplikasi target termasuk mobile TV dan radio broadcasting serta pengiriman file dan emergency alert.

Tidak ada pengembangan MBMS untuk komersial selama ini. 

sumber : telecomfunda

Automatic Frequency Planning

Lama belum update ,malam ini mencoba kembali hadir lagi. Apa yah bahasan yang bisa dibahas kali ini? hmm yang terpikir baru-baru ini sih tentang Malist adhoc. Perencanaan alokasi frekuensi tch (kanal trafik) yang bersifat acak atau malist (mobile allocation) yang dipakai tiap sektor berbeda-beda. Agak pusing juga sih melihatnya, namun itu adalah hasil runningan dari suatu tools automatic frequency planning (AFP) yang bernama.......Optimi.
Yeah, optimi dapat membuat planning secara automatis baik itu frekuensi BCCH ,TCH, MAIO dan HSN. Optimi bergantung kepada data-data vital yang harus akurat sesuai dengan aktual yang ada di lapangan. Data-data yang dibutuhkan oleh optimi itu adalah :

1. Physical data information (cell name,site name,CGI,long,lat,Azimuth,Tilt,antenna type,height,etc)
2. HO (handover) data
3. TRX config data
4. MRR + FAS/NCS (kind of Measurement Record)
5. New Site Integration date
6. Trafik on busy hour selama minimal 1 minggu (Voice dan Data)
7. Neighbour
8. Clutter & Elevation map

kurang lebihnya itu yang dibutuhkan sebagai input ke tool optimi. Nomer 2,3,4,6,7 disediakan oleh OSS engineer. nomor 5 disediakan oleh tim project atau tim operator , dan ke-1,5,8 oleh RNP/RND dari semua pihak terutama owner. Bila semua sudah lengkap maka optimi selanjutnya yang akan bekerja dengan algoritmanya sehingga dicapai hasil simulasi yang baik berupa tidak adanya co-bcch,co-bsic, dll.

Namun menurut saya optimi juga punya kelemahan, yaitu ketika data-data yang diberikan sebagai input tersebut tidak akurat maupun tidak bisanya ia mengatur perencanaan frekuensi bcch secara rapih seperti yang dilakukan pada cara manual. Saya sendiri belum pernah menggunakan optimi,hanya saja terlibat pada beberapa hasilnya untuk kesekian kalinya. Keluaran hasil bcch plan dari optimi, disimulasikan kembali olehku ke dalam planning tool yang bernama Mentum Cell Planner (ini versi10 karena versi sebelumnya bernama Tems Cell Planner, mungkin sudah dibeli oleh mentum). Dilihat hasil statistik plot C/I dan C/A nya apakah lebih baik dari sebelumnya atau sesudahnya setelah diplan oleh optimi.

Segitu dulu yang bisa saya tulis, udah ngantuk nih ...hoammm. Trims sudah membaca dan berkunjung.

RN Admission Control Parameter

Walau belum dapet kesempatan ngoptim 3G, ga ada salahnya gw pelajari parameter-parameternya. Berikut yang ingin gw pelajari hari ini :

RN Admission Control

aseDlAdm		Cell parameter that defines the absolute admission limit for ASEs in the downlink.
aseUlAdm		Cell parameter that defines the absolute admission limit for ASEs in the uplink.
compModeAdm		Cell parameter that defines the absolute admission limit for the number of radio links in compressed mode in a cell.
dlCodeAdm		Cell parameter that defines the absolute admission limit for downlink code usage.
pwrAdm		Cell parameter that defines the absolute admission limit for downlink power utilization. It is relative to the min( maximumTransmissionPower, maxDlPowerCapability), it is expressed as a percentage and that is a percentage of min.( maximumTransmissionPower, maxDlPowerCapability).
hsdpaUsersAdm		Cell parameter that defines the admission limit for the number of users assigned to the HS-DSCH. Applicable to admission requests related to RAB setup of an HSDPA service.
eulServingCellUsersAdm		Cell parameter that defines the admission limit for the number of EUL users having the cell as serving cell.
eulNonServingCellUsersAdm		Cell parameter that defines the admission limit for the number of EUL users having the cell as non-serving cell.
eulServingCellUsersAdmTti2		Cell parameter that defines the admission threshold for the number of 2 ms TTI E-DCH users having this cell as serving cell. Applicable at serving cell change, at RAB establishment and at re-configuration to EUL.
sf8Adm		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 8 in downlink.
sf16Adm		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 16 in downlink for which new non-guaranteed admission requests will continue to be allowed.
sf32Adm		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 32 in downlink.
sf16gAdm		Cell parameter that defines the maximum number of radio links with spreading factor = 16 in downlink for which new guaranteed admission requests will continue to be allowed. Reaching or exceeding this number of radio links (any service class) using downlink spreading factor = 16 will block setup/adding any more guaranteed service class radio links requiring additional downlink spreading factor = 16 in this cell.
sf4AdmUl		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 4 in uplink (radio connection type PS384/HS).
sf8AdmUl		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 8 in uplink.
sf16AdmUl		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 16 in uplink.
sf8gAdmUl		Cell parameter that defines the absolute admission limit for the number of radio links with spreading factor = 8 in uplink.
dlHwAdm		Parameter that defines the admission limit for the downlink hardware usage in the cell group.
ulHwAdm		Parameter that defines the admission limit for the uplink hardware usage in the cell group.
maxNumHsdpaUsers		Parameter that limits the maximum allowed number of simultaneous HSDPA users per cell that can be served.
maxNumADchReservation		The maximum number of A-DCH resources that may be configured in a baseband pool.
ulLicFractBbPool2		Parameter that defines the UL capacity of the second Base Band Pool in percentage of licensed UL capacity.
dlLicFractBbPool2		Parameter that defines the DL capacity of the second Base Band Pool in percentage of licensed DL capacity
plSessionsMax		Parameter that defines the maximum number of ongoing MBMS sessions in one Preferred Layer cell.
nonPlSessionsMax		Parameter that defines the maximum number of ongoing MBMS sessions in one non-Preferred Layer cell.

Telecom Trends 2012

The 10 hottest consumer trends:

1. Connectivity is king. Connectivity has become as essential as the air we breathe. Once they have been connected, consumers say the internet is one of the last things they would be willing to give up if they had to reduce their expenses. (penting dong, jangan suka lemot :D )

2. Everyone can be a service provider. There is a huge demand for new services. The internet makes it possible for both companies and consumers to invent new solutions, such as apps. (sudah banyak aplikasi yg diciptakan oleh pemuda Indonesia, great)

3. Social media redefine news reporting. Social media drive consumption of pictures, video clips and music, and now they also help consumers judge the relevance of news by providing necessary social commentary. (hmm semoga facebook masih banyak yg lihat ya)

4. Mobile phones play a significant role in everyday life. Consumers show most interest in mobile services that are directly related to nearby places or local services. While 90 percent of all smartphone owners always carry their phones with them, only 80 percent of them mention carrying money. (tetep aja kalo soal jual beli mesti siapin cash,tapi mobile phone memang mempermudah)

5. Transparency greater than privacy. People are getting used to living transparent lives and they also expect companies and other organizations to act transparently. (kalo company sih memang harus transparant baiknya dari dulu, tapi kalo kita? tetap butuh yg namanya privacy)

6. The cloud makes things easy to use. Shring information and having several devices connected at all times is becoming the norm for consumers, resulting in the introduction of more cloud-based services. The main driver is ease of use. (yup cloud computing!)

7. Women drive adoption of smartphones. Our 2011 study of smartphone users showed that men still dominate usage of niche services on smartphones while significantly more women use regular services such as voice calling, SMS and Facebook. By actively integrating the use of all communications channels into one device, women are driving mass-market adoption of smartphones. (hmm wanita suka belanja,hihi)

8. Making shopping easier. Our survey showed that 67 percent of smartphone users are interested in mobile payments. Payments should not be seen in isolation but must be put into a context of everyday shopping "“ for example, product information, bonus points, receipts and even indoor-shopping-mall navigation. (buat yg suka belanja semakin dipermudah, tapi tetep keamanan harus diperhatikan)

9. Everything connects. Mobile data surpassed voice in the fourth quarter of 2009 and doubled voice in the first quarter of 2011. Consumers are increasingly connecting to the internet and to things around them, such as cars, vending machines, ticket gates and more. (seperti yg diramalkan, teknologi akan berhubungan dengan device" lainnya)

10. Uncertain times "consumers strive for control". In times of economic instability or when disasters such as earthquakes occur, we see renewed interest among consumers in services related to utilities such as water and electricity. Likewise, a change in disposable income is driving demand for consumers to be in control of service consumption. (pengendalian konsumsi seperti listrik dan air semakin diperhatikan,terlebih saat terjadi bencana/ketidakstabilan ekonomi)