IP Library › Granted Patent US 12,284,619
Granted Patent B2
US 12,284,619 · App. 17/705,198 · Granted Apr 22, 2025

Method and apparatus for transmitting signal and communication system

Inventors: Qinyan Jiang (Beijing, CN); Tsuyoshi Shimomura (Yokohama, JP); Meiyi Jia (Beijing, CN)
Assignee: FUJITSU LIMITED
H04W56/001H04W72/0453H04W72/1273H04W72/23
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Quick Facts
Patent No.
US 12,284,619
App. No.
17/705,198
Granted
Apr 22, 2025
Kind
B2
Abstract

Methods and apparatus for transmitting a signal and a communication system. The apparatus includes a receiver configured to: receive a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), the first synchronization signal/physical broadcast channel block being not located on a first synchronization raster; and receive physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) being used to schedule a physical downlink shared channel (PDSCH) for carrying remaining minimum system information/system information block 1 (RMSI/SIB1).

Claims (49)

1. An apparatus for receiving a signal, applicable to a terminal equipment, wherein the apparatus comprises:

a receiver configured to:

receive a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), the first synchronization signal/physical broadcast channel block being not located on a first synchronization raster;

receive physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) being used to schedule a physical downlink shared channel (PDSCH) for carrying remaining minimum system information/system information block 1 (RMSI/SIB1); and

determine a control resource set (CORESET) used for receiving the PDCCH according to indication information carried by the first SSB before receiving the PDCCH,

wherein the indication information indicates a relative position of a frequency-domain position of a second predetermined resource of the CORESET to a frequency-domain position of a fourth predetermined resource of a second SSB, the second SSB being located on the first synchronization raster.

2. The apparatus according to claim 1 , wherein,

a relationship between the control resource set and the frequency-domain position of the first SSB is predefined; or

the CORESET and the first SSB are located in a same sub-band.

3. The apparatus according to claim 1 , wherein,

the indication information is used to indicate the frequency-domain position of the CORESET.

4. The apparatus according to claim 1 , wherein,

the indication information indicates the frequency-domain position of the CORESET based on a reference frequency-domain position.

5. The apparatus according to claim 3 , wherein,

the indication information indicates:

a sub-band where frequency-domain resources of the CORESET or a first predetermined resource in frequency-domain resources of the CORESET are/is located; and/or

frequency-domain positions of frequency-domain resources of the control resource set CORESET or the frequency-domain position of the second predetermined resource in frequency-domain resources of the CORESET,

wherein the first predetermined resource and the second predetermined resource are identical or different.

6. The apparatus according to claim 1 , wherein,

the relative position is in a number of resource blocks and/or the number of subcarriers.

7. The apparatus according to claim 1 , wherein,

the indication information indicates an index of a sub-band where frequency-domain resources of the CORESET or a first predetermined resource in the CORESET are/is located; or

the indication information indicates a relative position of the sub-band where the frequency-domain resources of the CORESET or the first predetermined resource in the CORESET are/is located to a sub-band where the frequency-domain position of the first SSB is located; or

the indication information indicates information related to a synchronization raster in the sub-band where the frequency-domain resources of the CORESET or the first predetermined resource in the CORESET are/is located.

8. The apparatus according to claim 6 , wherein,

the indication information indicates an offset between a global synchronization channel number (GSCN) of a second synchronization raster in a sub-band where the frequency-domain resources of the CORESET or a first predetermined resource are/is located and a global synchronization channel number (GSCN) of a second synchronization raster to which the first SSB corresponds.

9. The apparatus according to claim 1 , wherein,

the indication information indicates an offset between a first RB of the CORESET and the first common RB overlapping with the first RB of the second SSB.

10. The apparatus according to claim 1 , wherein,

there exists a fixed mapping relationship between frequency-domain position of each physical resource block in the CORESET.

11. An apparatus for transmitting a signal, applicable to a network device, wherein the apparatus comprises a transmitter configured to:

transmit a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB) not located on a first synchronization raster; and

transmit physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) being used to schedule a physical downlink shared channel (PDSCH) for carrying remaining minimum system information/system information block 1 (RMSI/SIB1),

wherein the PDCCH is transmitted on resources of a control resource set (CORESET) associated with the first SSB,

the first SSB carries indication information, and

the indication information indicates a relative position of a frequency-domain position of a second predetermined resource in the CORESET to a frequency-domain position of a fourth predetermined resource of a second SSB, the second SSB being located on the first synchronization raster.

12. The apparatus according to claim 11 , wherein,

the relative position is the number of resource blocks and/or the number of subcarriers.

13. The apparatus according to claim 11 , wherein,

the indication information indicates an offset between a first RB of the CORESET and the first common RB overlapping with the first RB of the second SSB.

14. A communication system, comprising:

a terminal equipment comprising a receiver configured to:

receive a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), the first synchronization signal/physical broadcast channel block being not located on a first synchronization raster; and

receive physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) being used to schedule a physical downlink shared channel (PDSCH) for carrying remaining minimum system information/system information block 1 (RMSI/SIB1); and

determine a control resource set (CORESET) used for receiving the PDCCH according to indication information carried by the first SSB before receiving the PDCCH,

wherein the indication information indicates a relative position of a frequency-domain position of a second predetermined resource of the CORESET to a frequency-domain position of a fourth predetermined resource of a second SSB, the second SSB being located on the first synchronization raster,

a network device comprising a transmitter configured to:

transmit a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB) not located on a first synchronization raster; and

transmit physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) being used to schedule a physical downlink shared channel (PDSCH) for carrying remaining minimum system information/system information block 1 (RMSI/SIB1).

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2026
From: FUJITSU LIMITED
To: 1FINITY INC.
Reel/Frame 074197/0244 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2022
From: JIANG, QINYAN; SHIMOMURA, TSUYOSHI; JIA, MEIYI
To: FUJITSU LIMITED
Reel/Frame 059408/0808 →
Continuity (2)
Continuation PCTCN2019109264 · Sep 30, 2019
Related Publication 20220217662A1 · Jul 7, 2022
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Cited By (1)
US 12,562,873