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 10,104,686 B2
• Filed: 06/12/2017
• Issued: 10/16/2018
• 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:
  US15/620,276
• Publication Number:
  US 20170280478A1
• Time in Patent Office: 491 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 system information in a radio access network, the mobile terminal comprising:

a receiver configured to receive;

a first system information including a master information block of a broadcast control logical channel via a broadcast transport channel, and

a control information, on a control channel associated with a shared transport channel;

processor circuitry configured to obtain;

from the control information at least one of parameters of scheduling, modulation, and transport block size of second system information that is mapped on the shared transport channel, and

a second system information block via the shared transport channel according to at least one of the parameters of scheduling, modulation, and transport block size;

system information blocks of a broadcast control logical channel from the shared transport channel and the broadcast transport channel in accordance with a mapping that depends on a property of a respective system information block or the mobile terminal to receive the broadcast system information.

2. The mobile terminal according to claim 1, wherein the property of a system information block comprises temporal variability of the information contained in the system information block.

3. The mobile terminal according to claim 1, wherein the property of a system information block comprises size of the system information block.

4. The mobile terminal according to claim 1, wherein the property of a system information block comprises necessity of the information comprised in the system information block for system access.

5. The mobile terminal according to claim 1, wherein the property of a system information block comprises necessity of the information comprised in the system information block for tracking user location within the mobile communication system.

6. The mobile terminal according to claim 1, wherein the property of the mobile terminals comprises capability to support an optional feature within the mobile communication system.

7. The mobile terminal according to claim 1, wherein the receiver is further configured to receive the master information block periodically via the broadcast transport channel, wherein the master information block comprises control information associated to a respective one of the system information blocks, wherein the associated control information indicates whether a respective system information block is mapped to the broadcast transport channel or the shared transport channel.

8. The mobile terminal according to claim 1, wherein in case a system information block is mapped to the shared transport channel, the associated control information comprises transmission format and timing of a respective system information block received via the shared transport channel.

9. The mobile terminal according to claim 1, wherein in case a system information block is mapped to the broadcast transport channel, the associated control information comprises a position of the respective system information block on the broadcast transport channel.

10. The mobile terminal according to claim 1, wherein in case a system information block is mapped to the broadcast transport channel, the associated control information comprises a time interval at which the respective system information block is transmitted.

11. The mobile terminal according to claim 1, wherein in case a system information block is mapped to the broadcast transport channel, the associated control information specifies comprises a timer value or value tag-based update mechanism to be utilized to update the information of the respective system information block.

12. The mobile terminal according to claim 1, wherein the receiver is configured to receive the control information on the control channel associated to the shared transport channel, wherein the control information indicates the transmission format and timing of a respective system information block received via the shared transport channel.

13. The mobile terminal according to the claim 1, wherein the control information further comprises identification of a logical channel to transport channel mapping.

14. The mobile terminal according to claim 1, wherein the receiver is configured to receive the control information via the shared transport channel, wherein the control information comprises an identification of a logical channel to transport channel mapping.

15. The mobile terminal according to claim 14, wherein the identification of the logical channel to transport channel mapping is one of a plurality of configured or default identifiers.

16. The mobile terminal according to claim 1, wherein the broadcast system information comprises information on the configuration of at least one shared transport channel of a neighboring radio cell.

17. The mobile terminal according to the claim 1, wherein the control channel is a physical downlink control channel (PDCCH).

18. A receiving apparatus in a radio access network for receiving broadcast system information in the radio access network, the apparatus comprising:

a receiver for receiving a first system information including a master information block of a broadcast control logical channel via a broadcast transportation channel, and

processor circuitry configured to obtain timing information from the master information block,

the receiver receiving control information, on a control channel associated to a shared transport channel, that dynamically indicates at least one of parameters of scheduling, modulation, and transport block size of second system information that is mapped on the shared transport channel that uses dynamically allocated resources,

wherein the receiver receives the second system information block via the shared transport channel according to the timing information and at least one of the parameters of scheduling, modulation, and transport block size.

19. A computer-readable medium storing instructions that, when executed by a processor of a receiving apparatus, causes the receiving apparatus to receive broadcast system information in a radio access network of a mobile communication system, by:

receiving a first system information including a master information block of a broadcast control logical channel via a broadcast channel,

obtaining timing information from the master information block,

receiving control information, on a control channel associated to a shared transport channel, that dynamically allocates at least one of parameters of scheduling modulation, and transport block size of second system information that is mapped on the shared transport channel that uses dynamically allocated resources,

receiving the second system information block via the shared transport channel according to the timing information and at least one of the parameters of scheduling, modulation, and transport block size.

20. A mobile terminal for receiving system information in a radio access network, the mobile terminal comprising:

a receiver configured to receive first system information and second system information, wherein the first system information is master information block and a repetition period of the master information block is less than a repetition period of the second system information;

processor circuitry configured to obtain from the master information block the timing information for receiving the second system information.