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

• US 10,624,120 B2
• Filed: 10/03/2018
• Issued: 04/14/2020
• Est. Priority Date: 12/13/2005
• Status: Active Grant

• Current Assignee: Optis Wireless Technology, LLC (Brevet Capital)
• Original Assignee: Optis Wireless Technology, LLC (Brevet Capital)
• Inventors: Petermann, Dieter, Aoyama, Takahisa, Suzuki, Hidetoshi
• Primary Examiner(s): Chan, Sai Ming
• Application Number:
  US16/150,597
• Publication Number:
  US 20190037589A1
• Time in Patent Office: 559 Days
• Field of Search: 370329
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

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.

Claims

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).