Yes. GPRS will be suspended while the CSD/HSCSD/FAX call from the PC is open. After ending the CSD/HSCSD/FAX call, the GPRS connection will be resumed automatically, the same way as with voice calls.
Showing posts with label GPRS. Show all posts
Showing posts with label GPRS. Show all posts
Monday, February 8, 2010
Can I surf on the Internet with my laptop using GPRS?
Yes. GPRS is optimal for 'bursty' applications like web-browsing: when you access a web page, the browser sends data to the web server, the server sends back the page that you requested and after that you can spend as much time as you need to read the page.
Most of the time you are not sending or receiving anything, but when you want to fetch a new page it is important that you can start sending and receiving data quickly again. This is exactly what GPRS is i.e. with a GPRS dial-up connection, you first open the connection, and then browse as long as you want without worrying about how long the connection will be open. Notice that many web pages are updated automatically, and thus data transfer can also happen. Please contact your network operator or service provider for more information.
Most of the time you are not sending or receiving anything, but when you want to fetch a new page it is important that you can start sending and receiving data quickly again. This is exactly what GPRS is i.e. with a GPRS dial-up connection, you first open the connection, and then browse as long as you want without worrying about how long the connection will be open. Notice that many web pages are updated automatically, and thus data transfer can also happen. Please contact your network operator or service provider for more information.
Can I read my emails with my laptop using GPRS?
Yes. The GPRS dial-up connections set up will be done in a similar way as with traditional circuit switched data connections. When you want to read your email, connect to your mailbox and download the emails (or first the headers and the whole message only from the selected messages).
With class B GPRS mobiles you can receive speech calls while the GPRS dial-up connection is open. You can open the connection, download mails, reply to the downloaded mails, write and send new ones, and only after you stop working close the connection.
With class B GPRS mobiles you can receive speech calls while the GPRS dial-up connection is open. You can open the connection, download mails, reply to the downloaded mails, write and send new ones, and only after you stop working close the connection.
Can I use my GPRS mobile as a modem?
Yes. By using your GPRS mobile as a wireless modem with PC or PDA, it is possible to connect to an Internet Service Provider (ISP) or company Intranet. Connection media may be e.g. infrared (between mobile phone and laptop).
What does Quality of Service mean?
There are defined Quality of Service (QoS) parameters for GPRS in order to support different quality requirements for different services. At the beginning the only QoS that the networks support is the best effort i.e. the network will transfer data depending on the network resources. Later there will be better QoS support in the networks
GPRS phone and laptop computer
GPRS phone and laptop computer
What does GPRS roaming mean?
GPRS roaming means that you can use the same services when going abroad. While roaming the pricing of the GPRS services can be different in the foreign network than in the home network. Roaming needs an agreement between operators. You need to check before the trip whether your operator has a roaming agreement in the destination country.
Do I have my own IP-address when using GPRS?
Yes. When using WAP the mobile always requests a dynamic IP address from the network. When using GPRS dial-up connections either a static IP address can be used or a dynamic IP-address can be requested from the network.
Why doesn't Nokia GPRS mobile support 4 downlink timeslots?
Increasing multislot capacity does not necessarily increase transfer speed since the network provides only best effort delivery and the network load probably limits usage of higher multislot classes, especially to downlink direction.
Thus, Nokia sees that multislot class 6 (3+1, 2+2) provides a good service for mass market use e.g. WAP usage. Web browsing and e-mail sending/receiving reach a sufficient level for the end user.
Thus, Nokia sees that multislot class 6 (3+1, 2+2) provides a good service for mass market use e.g. WAP usage. Web browsing and e-mail sending/receiving reach a sufficient level for the end user.
What do I have to do if I want to connect to GPRS network using my Nokia GPRS mobile phone?
The mobile phone takes care of registration and connection creation to the GPRS service provided that GPRS service is available.
In Nokia mobile phones there are two options:
Always online - mode: If you have selected this mode (from settings menu), registration or connection* to GPRS network is performed automatically at power on (if GBRS network is available). Always online mode allows fast connection setup and delays are minimized when connecting e.g. to WAP services.
When needed - mode: When this mode is selected, GPRS registration and connection are established only when you start to use applications utilizing GPRS (e.g. WAP and PC dial-up). Connection and registration to GPRS service are closed when you end the WAP browser or PC dial-up application.
*The Always Online functionality depends on operator configuration. Please contact your network operator or service provider for further information.
There are three different classes for GPRS mobiles, A, B and C. Nokia phones support Class B. What do these classes mean? Class A:
Class A mobiles can be connected to both GPRS and GSM services simultaneously.
Class B:
Class B mobiles can be attached to both GPRS and GSM services, using one service at a time. Class B mobiles enable receiving and making a voice call or SMS during GPRS connection. During a voice call or SMS, GPRS service is suspended and resumes automatically after call or SMS session has ended.
Class C:
Class C mobile is attached to either GPRS or GSM voice service. You need to switch manually between services.
Nokia GPRS mobile supports 3+1 or 2+2 timeslot configuration (Multislot class 6). What does this mean and what kind of data transfer speed do I get?
The first digit indicates the number of downlink timeslots i.e. mobile is able to receive from the network. The second digit indicates the number of uplink timeslots i.e. how many timeslots mobile is able to transmit.
Nokia GPRS speeds are theoretically possible up to 64.2 kbit/sec under optimum network conditions. Nokia GPRS terminals support all four channel coding schemes specified in GPRS standard (9.05, 13.4, 15,6, 21.4 per timeslot). Top speeds are not yet possible with the current networks in place, and due to the packet switched nature, the typically achieved mean speeds vary between 15-25 kbit/sec. That makes mobile services comfortable to use. Multislot class 6 enables use of combinations up to 2+2, which is optimum for applications that need sending power e.g. email, and 3+1 for browsing and downloading. Current networks mainly support a maximum of 13.4kbit/sec per timeslot. When the user base grows in the cell, capacity is shared by network between each user. The network also takes care of error correction.
In Nokia mobile phones there are two options:
Always online - mode: If you have selected this mode (from settings menu), registration or connection* to GPRS network is performed automatically at power on (if GBRS network is available). Always online mode allows fast connection setup and delays are minimized when connecting e.g. to WAP services.
When needed - mode: When this mode is selected, GPRS registration and connection are established only when you start to use applications utilizing GPRS (e.g. WAP and PC dial-up). Connection and registration to GPRS service are closed when you end the WAP browser or PC dial-up application.
*The Always Online functionality depends on operator configuration. Please contact your network operator or service provider for further information.
There are three different classes for GPRS mobiles, A, B and C. Nokia phones support Class B. What do these classes mean? Class A:
Class A mobiles can be connected to both GPRS and GSM services simultaneously.
Class B:
Class B mobiles can be attached to both GPRS and GSM services, using one service at a time. Class B mobiles enable receiving and making a voice call or SMS during GPRS connection. During a voice call or SMS, GPRS service is suspended and resumes automatically after call or SMS session has ended.
Class C:
Class C mobile is attached to either GPRS or GSM voice service. You need to switch manually between services.
Nokia GPRS mobile supports 3+1 or 2+2 timeslot configuration (Multislot class 6). What does this mean and what kind of data transfer speed do I get?
The first digit indicates the number of downlink timeslots i.e. mobile is able to receive from the network. The second digit indicates the number of uplink timeslots i.e. how many timeslots mobile is able to transmit.
Nokia GPRS speeds are theoretically possible up to 64.2 kbit/sec under optimum network conditions. Nokia GPRS terminals support all four channel coding schemes specified in GPRS standard (9.05, 13.4, 15,6, 21.4 per timeslot). Top speeds are not yet possible with the current networks in place, and due to the packet switched nature, the typically achieved mean speeds vary between 15-25 kbit/sec. That makes mobile services comfortable to use. Multislot class 6 enables use of combinations up to 2+2, which is optimum for applications that need sending power e.g. email, and 3+1 for browsing and downloading. Current networks mainly support a maximum of 13.4kbit/sec per timeslot. When the user base grows in the cell, capacity is shared by network between each user. The network also takes care of error correction.
What does GPRS connection mean?
GPRS connection means that The mobile has been registered (GPRS attach) to the GPRS network
The connection (PDP context) between the mobile and the GPRS network has been created.
The connection (PDP context) between the mobile and the GPRS network has been created.
What is PDP context?
When PDP (Packet Data Protocol) context is activated we are able to transfer data. In practice this means that when you start a WAP or PC dial-up application, the GPRS connection between the phone and the network is created. It will be indicated in the display when the GPRS connection is on. When you end the application, the GPRS connection ends but the registration to the GPRS network remains.
PDP context also means that an IP address is given for the mobile and other subscriber related parameters are activated. First Nokia terminals have one connection (PDP context) at a time e.g. WAP over GPRS connection will be closed automatically when the GPRS dial-up (i.e. using GPRS with your laptop computer) connection is started.
PDP context also means that an IP address is given for the mobile and other subscriber related parameters are activated. First Nokia terminals have one connection (PDP context) at a time e.g. WAP over GPRS connection will be closed automatically when the GPRS dial-up (i.e. using GPRS with your laptop computer) connection is started.
What does GPRS attach mean?
GPRS attach means that the mobile phone is registered to a GPRS network. GPRS attach is also allowing mobility i.e. the network is keeping track of the mobile movements. In addition, the mobile is authenticated and ciphering is enabled
How do I get the right mobile settings?
When you use GPRS-enabled mobile for the first time, you need to define the WAP setting and if you want to use the phone with your laptop computer, you also have to define GPRS dial-up settings.
There are several ways to configure these parameters:
Manually: Input them manually using the mobile keypad. In this scenario the WAP service provider provides the settings e.g. on the web site.
Over the Air (OTA): The parameters are received with an OTA message. You will get the settings by sending an SMS with a special string to the service provider's OTA settings service number and soon you will receive the settings with an SMS. By accepting the settings you will have them configured in your mobile.
There are several ways to configure these parameters:
Manually: Input them manually using the mobile keypad. In this scenario the WAP service provider provides the settings e.g. on the web site.
Over the Air (OTA): The parameters are received with an OTA message. You will get the settings by sending an SMS with a special string to the service provider's OTA settings service number and soon you will receive the settings with an SMS. By accepting the settings you will have them configured in your mobile.
What do I need to start using GPRS?
You need a GPRS capable mobile phone, a SIM card from an operator and a contract for using GPRS services. GPRS is activated by the operator. If you have a SIM card already, then no new SIM card is needed but only the activation of the service.
How is the GPRS connection secured?
Authentication and ciphering are used in radio access. IP security is operator dependent and there are various standard Internet security methods available
What kind of applications are best suited for GPRS?
GPRS is best suited for applications with a 'bursty' nature of data transfer e.g. WAP services, messaging, Multimedia Messaging Service, Internet, etc. The most common usage scenarios for GPRS are: Connectivity with portable computers, multimedia messaging and services over GPRS.
Comparing CSD/HSCSD and GPRS?
Compared to CSD (Circuit Switched Data, up to 14.4 kbps) or HSCSD (High Speed Circuit Switched Data, up to 43.2 kbps), GPRS utilizes packet switching technology where information is transmitted in short bursts of data over an IP-based network.
What are the benefits of GPRS?
GPRS brings IP to GSM networks, improving spectrum efficiency and end-user experience e.g. allowing higher data transmission speeds and lower costs.
Sunday, February 7, 2010
WHAT DOES GPRS DO?
GPRS provides a permanent connection where information can be sent or received immediately as the need arises, subject to radio coverage. No dial-up modem connection is necessary. This is why GPRS users are sometimes referred to be as being anytime-anywhere "always connected".The GPRS tariff structure is based on a fixed cost, dependent on the quantity of data required. In other words customers will be able to fix their operating costs without the concerns of variable billing.
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