APPARATUSES FOR COMMUNICATING WITH NEW CARRIER TYPE PHYSICAL BROADCAST CHANNEL

• US 20140293913A1
• Filed: 04/02/2014
• Published: 10/02/2014
• Est. Priority Date: 04/02/2013
• Status: Active Grant

• Current Assignee: Acer, Inc.
• Original Assignee: Industrial Technology Research Institute
• Inventors: YEN, Chia-Pang
• Granted Patent: US 9,526,085 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A communication station includes a modulation circuit, a mapping circuit and a transmitting circuit. The modulation circuit is configured to operably modulate the master information block (MIB). The mapping circuit is configured to operably map the modulated MIBs to the new carrier type physical broadcast channel (PBCH). The PBCH is configured in a plurality of radio frames. The transmitting circuit is configured to operably transmit the radio frames. Moreover, the mapping circuit maps the modulated MIBs to only part of six central radio blocks of the predetermined subframes of the radio frames. The six central radio blocks are configured to locate around the DC subcarrier.

Claims

1. A communication station, comprising:

a modulation circuit, configured to operably modulate one or more master information blocks (MIBs);

a mapping circuit, configured to operably map the modulated MIBs to a new carrier type physical broadcast channel (PBCH) wherein the PBCH is configured in a plurality of radio frames; and

a transmitting circuit, configured to operably transmit the radio frames;

wherein each of the radio frames comprises a plurality of subframes;

each of the subframes comprises a plurality of slots;

each of the slots comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols;

each of the OFDM symbols comprises a plurality of subcarriers;

each of the slots comprises a plurality of radio blocks (RBs);

each of the RBs comprises a predetermined number of OFDM symbols located on a predetermined number of subcarriers;

the mapping circuit maps the modulated MIBs to a plurality of central RBs of a first predetermined subframes of the radio frames;

the central RBs are configured to be around a DC subcarrier of the subcarriers; and

the mapping circuit maps the modulated MIBs to only part of the central RBs.

2. The communication station of claim 1, wherein the mapping circuit maps the modulated MIBs to a first RB and a second RB of the central RBs of a first slot of the first predetermined subframe and to a third RB and a fourth RB of the central RBs of a second slot of the first predetermined subframe;

the first RB and the third RB comprise a same first RB number; and

the second RB and the fourth RB comprise a same second RB number.

3. The communication station of claim 2, wherein the first RB and the second RB are separated by (N−

2) RBs among the N central RBs of the first slot; and

the third RB and the fourth RB are separated by (N−

2) RBs among the N central RBs of the second slot.

4. The communication station of claim 2, wherein when a nearby communication station transmits PBCH signals by utilizing a plurality of RBs with a third RB number and a plurality of RBs with a fourth RE number, the mapping circuit maps the modulated MIBs to the first RB, the second RB, the third RB and the fourth RB;

the first RB number is different from the third RB number and the fourth number; and

the second RB number is different from the third RB number and the fourth RB number.

5. The communication station of claim 2, wherein the mapping circuit maps the modulated MIBs to a fifth RB and a sixth RB of the central RBs of a first slot of the first predetermined subframe and to a seventh RB and an eighth RB of the central RBs of a second slot of the first predetermined subframe;

the fifth RB and the seventh RB comprise a same third RB number; and

the sixth RB and the eighth RB comprise a same fourth RB number.

6. The communication station of claim 1, wherein the mapping circuit maps the modulated MIBs to a first RB and a second RB of the central RBs of a first slot of the first predetermined subframe and to a third RB and a fourth RB of the central RBs of a second slot of the second predetermined subframe;

the first RB and the third RB respectively comprise a first RB number and a third RB number which are different; and

the second RB and the fourth RB respectively comprise a second RB number and a fourth RB number which are different.

7. The communication station of claim 2, wherein when a nearby communication station transmits PBCH signals by utilizing a plurality of RBs with a fifth RB number, a plurality of RBs with a sixth RB number, a plurality of RBs with a seventh RB number and a plurality of RBs with an eighth RB number, the mapping circuit maps the modulated MIBs to the first RB, the second RB, the third RB and the fourth RB;

and each of the first RB number, the second RB number, the third RB number and the fourth RB number is different from at least three of the fifth RB number, the sixth RE number, and the seventh RB number and the eighth RB number.

8. A communication station, comprising:

a modulation circuit, configured to operably modulate one or more master information blocks (MIBs);

a mapping circuit, configured to operably map the modulated MIBs to a new carrier type physical broadcast channel (PBCH) wherein the PBCH is configured in a plurality of radio frames; and

a transmitting circuit, configured to operably transmit the radio frames;

wherein each of the radio frames comprises a plurality of subframes;

each of the subframes comprises a plurality of slots;

each of the slots comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols;

each of the OFDM symbols comprises a plurality of subcarriers;

each of the slots comprises a plurality of radio blocks (RBs);

each of the RBs comprises a predetermined number of OFDM symbols located on a predetermined number of subcarriers;

the mapping circuit maps the modulated MIBs to a plurality of central RBs of a first predetermined OFDM symbol of a first predetermined subframes of the radio frames, to a plurality of central RBs of a second predetermined OFDM symbol of the first predetermined subframes of the radio frames, to a plurality of central RBs of a third predetermined OFDM symbol of a second predetermined subframes of the radio frames and to a plurality of central RBs of a fourth predetermined OFDM symbol of the second predetermined subframes of the radio frames;

the central RBs are configured to be around a DC subcarrier of the subcarriers; and

first predetermined OFDM symbol, the second predetermined OFDM symbol, the third predetermined OFDM symbol and the fourth predetermined OFDM symbol are respectively configured to be adjacent to a primary synchronization signal and a secondary synchronization signal.

9. The communication station of claim 8, wherein in a frequency division duplex system, the first predetermined subframe is configured as a first subframe of each of the radio frames and the second predetermined subframe is configured as a sixth subframe of each of the radio frames;

the first predetermined OFDM symbol, the second predetermined OFDM symbol, the third predetermined OFDM symbol and the fourth predetermined OFDM symbol are respectively configured as a fifth OFDM symbol of the first predetermined subframe, an eighth OFDM symbol of the first predetermined subframe, a fifth OFDM symbol of the second predetermined subframe and an eighth OFDM symbol of the second predetermined subframe.

10. The communication station of claim 8, wherein in a time division duplex system, the first predetermined subframe is configured as a second subframe of each of the radio frames and the second predetermined subframe is configured as a seventh subframe of each of the radio frames;

the first predetermined OFDM symbol, the second predetermined OFDM symbol, the third predetermined OFDM symbol and the fourth predetermined OFDM symbol are respectively configured as a first OFDM symbol of the first predetermined subframe, a second OFDM symbol of the first predetermined subframe, a first OFDM symbol of the second predetermined subframe and a second OFDM symbol of the second predetermined subframe.

11. A communication device, comprising:

a receiving circuit, configured to operably receive a plurality of radio frames transmitted by a first communication station;

a demapping circuit, configured to operably demap one or more modulated master information blocks (MIBs) transmitted by the first communication station in a new carrier type physical broadcast channel (PBCH); and

a demodulation circuit, configured to operably demodulate the one or more MIBs;

wherein each of the radio frames comprises a plurality of subframes;

each of the subframes comprises a plurality of slots;

each of the slots comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols;

each of the OFDM symbols comprises a plurality of subcarriers;

each of the slots comprises a plurality of radio blocks (RBs);

each of the RBs comprises a predetermined number of OFDM symbols located on a predetermined number subcarriers;

the demapping circuit demaps the modulated MIBs from a plurality of central RBs of a first predetermined subframes of the radio frames;

the central RBs are configured to be around a DC subcarrier of the subcarriers; and

the demapping circuit demaps the modulated MIBs only from part of the central RBs.

12. The communication device of claim 11, wherein the modulated MIBs are configured to locate in a first RB and a second RB of the central RBs of a first slot of the first predetermined subframe and in a third RB and a fourth RB of the central RBs of a second slot of the first predetermined subframe;

the first RB and the third RB comprise a same first RB number; and

the second RB and the fourth RB comprise a same second RB number.

13. The communication device of claim 12, wherein the first RB and the second RB are separated by four RBs among the central RBs of the first slot;

and the third RB and the fourth RB are separated by 4 RBs among the central RBs of the second slot.

14. The communication device of claim 12, wherein when a nearby second communication station transmits PBCH signals by utilizing a plurality of RBs with a third RB number and a plurality of RBs with a fourth RB number, the demapping circuit &

maps the modulated MIBs from the first RB, the second RB, the third RB and the fourth RB;

the first RB number is different from the third RB number and the fourth number; and

the second RB number is different from the third RB number and the fourth RB number.

15. The communication device of claim 12, wherein the modulated MIBs are configured to locate in a fifth RB and a sixth RB of the central RBs of a first slot of the first predetermined subframe and in a seventh RB and an eighth RB of the central RBs of a second slot of the first predetermined subframe;

the fifth RB and the seventh RB comprise a same third RB number; and

the sixth RB and the eighth RB comprise a same fourth RB number.

16. The communication device of claim 11, wherein the modulated MIBs are configured to locate in a first RB and a second RB of the central RBs of a first slot of the first predetermined subframe and to a third RB and a fourth RB of the central RBs of a second slot of the second predetermined subframe;

the first RB and the third RB respectively comprise a first RB number and a third RB number which are different; and

the second RB and the fourth RB respectively comprise a second RB number and a fourth RB number which are different.

17. The communication device of claim 12, wherein when a nearby second communication station transmits PBCH signals by utilizing a plurality of RBs with a fifth RB number, a plurality of RBs with a sixth RB number, a plurality of RBs with a seventh RB number and a plurality of RBs with an eighth RB number, the demapping circuit demaps the modulated MIBs to the first RB, the second RB, the third RB and the fourth RB;

and each of the first RB number, the second RB number, the third RB number and the fourth RB number is different from at least three of the fifth RB number, the sixth RB number, and the seventh RB number and the eighth RB number.

18. A communication device, comprising:

a receiving circuit, configured to operably receive a plurality of radio frames transmitted by a first communication station;

a demapping circuit, configured to operably demap one or more modulated master information blocks (MIBs) transmitted by the first communication station in a new carrier type physical broadcast channel (PBCH); and

a demodulation circuit, configured to operably demodulate the one or more MIBs;

wherein each of the radio frames comprises a plurality of subframes;

each of the subframes comprises a plurality of slots;

each of the slots comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols;

each of the OFDM symbols comprises a plurally of subcarriers;

each of the slots comprises a plurality of radio blocks (RBs);

each of the RBs comprises a predetermined number of OFDM symbols located on a predetermined number of subcarriers;

the &

mapping circuit demaps the modulated MIBs from a plurality of central RBs of a first predetermined OFDM symbol of a first predetermined subframes of the radio frames, to a plurality of central RBs of a second predetermined OFDM symbol of the first predetermined subframes of the radio frames, to a plurality of central RBs of a third predetermined OFDM symbol of a second predetermined subframes of the radio frames and to a plurality of central RBs of a fourth predetermined OFDM symbol of the second predetermined subframes of the radio frames;

the central RBs are configured to be around a DC subcarrier of the subcarriers; and

the first predetermined OFDM symbol, the second predetermined OFDM symbol, the third predetermined OFDM symbol and the fourth predetermined OFDM symbol are respectively configured to be adjacent to a primary synchronization signal and a secondary synchronization signal.

19. The communication device of claim 18, wherein in a frequency division duplex system, the first predetermined subframe is configured as a first subframe of each of the radio frames and the second predetermined subframe is configured as a sixth subframe of each of the radio frames;

the first predetermined OFDM symbol, the second predetermined OFDM symbol, the third predetermined OFDM symbol and the fourth predetermined OFDM symbol are respectively configured as a fifth OFDM symbol of the first predetermined subframe, an eighth OFDM symbol of the first predetermined subframe, a fifth OFDM symbol of the second predetermined subframe and an eighth OFDM symbol of the second predetermined subframe.

20. The communication device of claim 18, wherein in a time division duplex system, the first predetermined subframe is configured as a second subframe of each of the radio frames and the second predetermined subframe is configured as a seventh subframe of each of the radio frames;

the first predetermined OFDM symbol, the second predetermined OFDM symbol, the third predetermined OFDM symbol and the fourth predetermined OFDM symbol are respectively configured as a first OFDM symbol of the first predetermined subframe, a second OFDM symbol of the first predetermined subframe, a first OFDM symbol of the second predetermined subframe and a second OFDM symbol of the second predetermined subframe.