Base station, terminal, and communication method

Patent metadata

Field	Value
Publication number	US-10135487-B2
Application number	US-201715799503-A
Country	US
Kind code	B2
Filing date	Oct 31, 2017
Priority date	Jul 24, 2015
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

In a base station, a first setting circuitry sets a first Narrowband for allocating a system information block (SIB) for MTC by using a predetermined default offset. A second setting circuitry sets a second Narrowband for allocating a signal other than the SIB by using the default offset and an additional offset that indicates a difference from the default offset. An allocating circuitry allocates the SIB including the additional offset to the first Narrowband, and allocates the signal other than the SIB to the second Narrowband.

First claim

What is claimed is:

1. A base station comprising:
a first setting circuitry which, in operation, sets a first Narrowband for allocating a system information block (SIB) 1 for Machine-Type Communications (MTC) by using a predetermined default offset;
a second setting circuitry which, in operation, sets a second Narrowband, for allocating a signal other than the SIB 1 by using the default offset and an additional offset that indicates a difference from the default offset; and
an allocating circuitry which, in operation, allocates the SIB 1 including the additional offset to the first Narrowband, and, in operation, allocates the signal other than the SIB 1 to the second Narrowband.

2. The base station according to claim 1 ,
wherein the default offset varies with a bandwidth, and the default offset is larger for a larger bandwidth.

3. The base station according to claim 1 ,
wherein the default offset is equal to a resource block group (RBG) size.

4. The base station according to claim 1 ,
wherein the signal is not allocated to a subframe in which the SIB 1 is placed, and
the subframe to which the SIB 1 is allocated is used for switching between frequency bands in frequency hopping of the signal.

5. The base station according to claim 1 ,
wherein in a subframe in which the SIB 1 is placed, the signal is allocated to a resource other than a resource to which the SIB 1 is allocated.

6. The base station according to claim 1 ,
wherein in a subframe in which the SIB 1 is placed, puncturing is performed on the signal allocated to a resource to which the SIB 1 is allocated.

7. A terminal comprising:
a first setting circuitry which, in operation, sets a first Narrowband tbr allocating a system information block (SIB) 1 for Machine-Type Communications (MTC) by using a predetermined default offset;
a second setting circuitry which, in operation, sets a second Narrowband for allocating a signal other than the SIB 1 by using the default offset and an additional offset that is included in the SIB 1 and indicates a difference from the default offset; and
a transmitter and receiver which, in operation, receives the SIB 1 on the first Narrowband, and, in operation, transmits and receives a signal other than the SIB 1 on the second Narrowband.

8. The terminal according to claim 7 ,
wherein the default offset varies with a bandwidth, and the default offset is larger for a larger bandwidth.

9. The terminal according to claim 7 ,
wherein the default offset is equal to a resource block group (RBG) size.

10. The terminal according to claim 7 ,
wherein the signal is not allocated to a subframe in which the SIB 1 is placed, and
the subframe to which the SIB 1 is allocated is used for switching between frequency bands in frequency hopping of the signal.

11. The terminal according to claim 7 ,
wherein in a subframe in which the SIB 1 is placed, the signal is allocated to a resource other than a resource to which the SIB 1 is allocated.

12. The terminal according to claim 7 ,
wherein in a subframe in which the SIB 1 is placed, puncturing is performed on the signal allocated to a resource to which the SIB 1 is allocated.

13. A communication method carried out by a base station apparatus, the method comprising:
setting a first Narrowband for allocating a system information block (SIB) 1 for Machine-Type Communications (MTC) by using a predetermined default offset;
setting a second Narrowband for allocating a signal other than the SIB 1 by using the default offset and an additional offset that indicates a difference from the default offset; and
allocating the SIB 1 including the additional offset to the first Narrowband, and allocating the signal other than the SIB 1 to the second Narrowband.

14. A communication method carried out by a terminal apparatus, the method comprising:
setting a first Narrowband for allocating a system information block (SIB) 1 for Machine-Type Communications (MTC) by using a predetermined default offset;
receiving the SIB 1 in the first Narrowband;
setting a second Narrowband for allocating a signal other than the SIB 1 by using the default offset and an additional offset that is included in the SIB 1 and indicates a difference from the default offset; and
transmitting and receiving the signal other than the SIB 1 in the second Narrowband.

Assignees

• Panasonic Ip Corp America

Inventors

• Horiuchi Ayako
• Suzuki Hidetoshi

Classifications

• H04W4/70

  Services for machine-to-machine communication [M2M] or machine type communication [MTC] · CPC title

• H04B1/713 Primary

  using frequency hopping · CPC title

• H04W4/38

  for collecting sensor information · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W48/12

  using downlink control channel · CPC title