This is also related to Sony Ericsson W995 and Nokia C7 specification.
A multislot allocation is represented as, for example, 5+2. The first number is the number of downlink timeslots and the second is the number of uplink timeslots allocated for use by the mobile station. A commonly used value is class 10 for many GPRS/EGPRS mobiles which uses a maximum of 4 timeslots in downlink direction and 2 timeslots in uplink direction.
However simultaneously a maximum number of 5 simultaneous timeslots can be used in both uplink and downlink. The network will automatically configure the for either 3+2 or 4+1 operation depending on the nature of data transfer.
Some high end mobiles, usually also supporting UMTS also support GPRS/EDGE multislot class 32. According to 3GPP TS 45.002 (Release 6), Table B.2, mobile stations of this class support 5 timeslots in downlink and 3 timeslots in uplink with a maximum number of 6 simultaneously used timeslots.
If data traffic is concentrated in downlink direction the network will configure the connection for 5+1 operation. When more data is transferred in the uplink the network can at any time change the constellation to 4+2 or 3+3. Under the best reception conditions, i.e. when the best EDGE modulation and coding scheme can be used, 5 timeslots can carry a bandwidth of 5*59.2 kbit/s = 296 kbit/s. In uplink direction, 3 timeslots can carry a bandwidth of 3*59.2 kbit/s = 177.6 kbit/s»
==> class 10 ~= (at most) 236.8 kbps ~= 29 KB/s
==> class 32 ~= (at most) 296 kbps = 37 KB/s
that's best of case situation; depending on your provider, the speed can and most likely will be lower.
Categories
- Alerting (1)
- Assignment Command (1)
- Assignment Complete (1)
- Base Station Identity Code (1)
- BSIC (1)
- Call Proceeding (1)
- Cell Global Identity (1)
- CGI (1)
- Ciphering Mode Command (1)
- Ciphering Mode Complete (1)
- Classes of GPRS services (1)
- Classmark Change (1)
- CM Call Event (1)
- CM Service Request (2)
- Connect Acknowledge (1)
- edge (1)
- Full Value (1)
- gprs (1)
- GPRS Handset Classes (1)
- GPRS MAC State (1)
- GPRS Suspension Request (1)
- GRR Cell Reselection Measurement (1)
- GSM RR Channel Configuration (1)
- GSM RR State (1)
- Gsm Surrounded Cell Ba List (1)
- Handover Command (1)
- Handover Complete (1)
- IMEI (1)
- Immediate Assignment (1)
- International Mobile station Equipment Identity (1)
- Key Performance Indicators (1)
- KPI (1)
- LAI (1)
- Layer 3 - Connect (1)
- Layer 3 - Measurement Information (1)
- Layer 3 Call Attempt - Setup (1)
- LN (1)
- Location Area Identity (1)
- Location Number (1)
- Mobile Station Roaming Number (1)
- MSRN (1)
- Radio Link Time-Out (1)
- RLINKT (1)
- SDCCH Drop Call Reason (1)
- Sub Value (1)
- System Information Type 5 (1)
- System Information Type 5ter (1)
- System Information Type 6 (1)
- TCH Drop Call Reason (1)
- Temporary Mobile Subscriber Identity (1)
- TMSI (1)
Total Pageviews
Text Widget
GSM GPRS EDGE Technology
Download GSM GPRS EDGE Guide for RF Engineer
Popular Posts
-
GPRS Suspension Request Time : 16:49:15.840 Vendor Header Length : 28 Log Code (Hex) : 0x512F HW Timestamp : (64216941.25 ms) 17:50:16...
-
“Full” and “Sub” Values Information elements with “Full” in their names are calculated on all blocks . Information elements with “Sub” in th...
-
System Information Type 3 Time : 15:01:19.914 Vendor Header ARFCN : 117 (E-GSM) L2 pseudo length : 18 Skip indicator : 0 Protocol discri...
-
Location Area Identity (LAI) LAI is used for location updating of mobile subscribers. LAI = MCC + MNC + LAC MCC = Mobile Country Code (3 dig...
-
CM Service Request Time : 16:49:15.372 Vendor Header Length : 30 Log Code (Hex) : 0x713A HW Timestamp : (64216447.50 ms) 17:50:16.448 ...
-
Classmark Change Time : 16:49:15.840 Vendor Header Length : 31 Log Code (Hex) : 0x512F HW Timestamp : (64216940.00 ms) 17:50:16.940 ...
-
Cell Global Identity (CGI) CGI is used for cell identification within the GSM network. This is done by adding a Cell Identity (CI) to the lo...
-
Paging Request Type 3 Time : 15:01:05.623 Vendor Header DL Signalling Counter Max : 45 DL Signalling Counter Current : 45 L2 pseudo le...
-
This is also related to Sony Ericsson W995 and Nokia C7 specification. A multislot allocation is represented as, for example, 5+2. The firs...
-
System Information Type 2quater Time : 15:01:25.486 Vendor Header ARFCN : 513 (GSM 1800) L2 pseudo length : 1 Skip indicator : 0 Protoco...