Method for receiving system information in a radio access network, performed by a mobile terminal and mobile terminal for receiving system information in a radio access network
A method and transmission apparatus transmit broadcast system information in a mobile communication system. Further, a method and mobile terminal receive the broadcast system information. An improved method for broadcasting broadcast system information maps different partitions of broadcast system information to a shared transport channel or a broadcast transport channel for transmission. The mapping may take into account parameters inherent to the mobile terminals to which the broadcast system information is to be transmitted and/or parameters inherent to the different partitions of broadcast system information.
1. A mobile terminal for receiving broadcast system information in a radio access network of a mobile communication system, the mobile terminal comprising:
a receiver and a processor, the processor and receiver being configured to:
receive, by the receiver, a master information block of a broadcast control logical channel via a broadcast transport channel;
obtain, by the processor, timing information from the master information block;
receive, by the receiver, control information on a control channel associated to a shared transport channel;
determine from the control information, by the processor, a modulation parameter for a system information block that is mapped on the shared transport channel that uses dynamically allocated resources; and
receive, by the receiver, the system information block via the shared transport channel according to the timing information and the modulation parameter.
2. A mobile terminal as claimed in claim 1 , wherein, the master information block is received periodically.
3. A mobile terminal as claimed in claim 2 , wherein, the master information block is received at the beginning of each transport block.
4. A mobile terminal as claimed in claim 2 , wherein, the master information block is received after a predetermined time span, whereby the predetermined time span is a given number of transmission time intervals.
5. A mobile terminal as claimed in claim 1 , wherein, the control information further comprises transmission format information regarding the system information block that is mapped on the shared transport channel.
6. A mobile terminal as claimed in claim 1 , wherein, the control channel is a physical downlink control channel (PDCCH).
7. A method of receiving broadcast system information in a radio access network of a mobile communication system comprising:
using a mobile terminal comprising a receiver and a processor to:
receive by the receiver, a master information block of a broadcast control logical channel via a broadcast transport channel;
obtain, by the processor, timing information from the master information block;
receive, by the receiver, control information on a control channel associated to a shared transport channel;
determine from the control information, by the processor, a modulation parameter for a system information block that is mapped on the shared transport channel that uses dynamically allocated resources; and
receive, by the receiver, the system information block via the shared transport channel according to the timing information and the modulation parameter.
8. A method of receiving broadcast system information as claimed in claim 7 , wherein, the master information block is received periodically.
9. A method of receiving broadcast system information as claimed in claim 8 , wherein, the master information block is received at the beginning of each transport block.
10. A method of receiving broadcast system information as claimed in claim 8 , wherein, the master information block is received after a predetermined time span, whereby the predetermined time span is a given number of transmission time intervals.
11. A method of receiving broadcast system information as claimed in claim 7 , wherein, the control information further comprises transmission format information regarding the system information block that is mapped on the shared transport channel.
12. A method of receiving broadcast system information as claimed in claim 7 , wherein, the control channel is a physical downlink control channel (PDCCH).
13. A transmitting apparatus for transmitting broadcast system information in a radio access network of a mobile communication system, the transmitting apparatus comprising:
a transmitter and a processor, the processor and transmitter being configured to:
transmit, by the transmitter, a master information block of a broadcast control logical channel via a broadcast transport channel;
include, by the processor, timing information in the master information block;
transmit, by the transmitter, control information on a control channel associated to a shared transport channel;
include in the control information, by the processor, a modulation parameter for a system information block that is mapped on the shared transport channel that uses dynamically allocated resources; and
transmit, by the transmitter, the system information block via the shared transport channel according to the timing information and the modulation parameter.
14. A transmitting apparatus as claimed in claim 13 , wherein, the master information block is transmitted periodically.
15. A transmitting apparatus as claimed in claim 14 , wherein, the master information block is transmitted at the beginning of each transport block.
16. A transmitting apparatus as claimed in claim 14 , wherein, the master information block is transmitted after a predetermined time span, whereby the predetermined time span is a given number of transmission time intervals.
17. A transmitting apparatus as claimed in claim 13 , wherein, the control information further comprises transmission format information regarding the system information block that is mapped on the shared transport channel.
18. A transmitting apparatus as claimed in claim 13 , wherein, the control channel is a physical downlink control channel (PDCCH).