Frequency hopping pattern and method for transmitting uplink signals using the same

• US 10,084,508 B2
• Filed: 01/24/2017
• Issued: 09/25/2018
• Est. Priority Date: 10/01/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ahn, Joon Kui, Yu, Nam Yul, Yun, Young Woo, Kim, Ki Jun, Park, Hyun Wook
• Primary Examiner(s): Pham, Chi H
• Assistant Examiner(s): Huang, Weibin
• Application Number:
  US15/414,280
• Publication Number:
  US 20170134068A1
• Time in Patent Office: 609 Days
• CPC Class Codes: H04B 1/7143 Arrangements for generation of hop patterns
• CPC Class Codes: H04B 7/12 Frequency diversity
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 27/2621 Reduction thereof using phase offsets between subcarriers
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0039 Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided

Abstract

A method for performing uplink transmission in a time domain transmission unit includes receiving, from a base station, hopping-mode information indicating whether a frequency hopping is an inter-slot hopping or an inter-subframe hopping and performing the uplink transmission using a resource block in the time domain transmission unit.

Claims

1. A method for performing, by a user equipment, physical uplink shared channel (PUSCH) transmission in a time domain transmission unit, the method comprising:

receiving frequency hopping on/off information through a physical downlink control channel (PDCCH) carrying scheduling information for the PUSCH transmission; and

performing the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern if the frequency hopping on/off information indicates a frequency hopping on,

wherein the predetermined hopping pattern is defined by a subband hopping performed over subbands and a mirroring on/off, and

wherein the subband hopping is defined using a first integer obtained from a first random sequence, and the mirroring on/off is determined based on a second random sequence separate from the first random sequence.

2. The method of claim 1, wherein the first integer is given using the first random sequence and using calculation operation which comprises:

performing modular calculation of;

(a value generated based on the first random sequence) mod (N_sb−

1), where “

N_sb”

is a number of subbands for the subband hopping; and

adding 1 to the modular calculated value.

3. The method of claim 1, wherein the subband hopping is defined such that a resource block index, RB, of the resource block used for the PUSCH transmission is given based on:

RB=(a reference index+(the first integer)*N^sb_RB)) mod (N^sb_RB*N_sb), where “

N_sb”

is a number of subbands for the subband hopping and “

N^sb_RB”

is a number of resource block in each subband.

4. The method of claim 3, wherein the reference index is determined based on the scheduling information.

5. The method of claim 3, wherein the predetermined hopping pattern is defined within “

N^sb_RB*N_sb”

resource blocks, and the “

N^sb_RB*N_sb”

resource blocks is within a uplink system band configured with N^UL_RB resource blocks excluding a predetermined number of resource blocks from each end of the uplink system band.

6. A user equipment for performing physical uplink shared channel (PUSCH) transmission in a time domain transmission unit, the user equipment comprising:

a receiver,

a transmitter, and

a processor configured to control the receiver and the transmitter, the processor configured to;

control the receiver to receive frequency hopping on/off information through a physical downlink control channel (PDCCH) carrying scheduling information for the PUSCH transmission; and

control the transmitter to perform the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern if the frequency hopping on/off information indicates a frequency hopping on,

wherein the predetermined hopping pattern is defined by a subband hopping performed over subbands and a mirroring on/off, and

wherein the subband hopping is defined using a first integer obtained from a first random sequence, and the mirroring on/off is determined based on a second random sequence separate from the first random sequence.

7. The user equipment of claim 6, wherein the first integer is given using the first random sequence and using calculation operation which comprises:

performing modular calculation of;

(a value generated based on the first random sequence) mod (N_sb−

1), where “

N_sb”

is a number of subbands for the subband hopping; and

adding 1 to the modular calculated value.

8. The user equipment of claim 6, wherein the subband hopping is defined such that a resource block index, RB, of the resource block used for the PUSCH transmission is given based on:

RB=(a reference index+(the first integer)*N^sb_RB)) mod (N^sb_RB*N_sb), where “

N_sb”

is a number of subbands for the subband hopping and “

N^sb_RB”

is a number of resource block in each subband.

9. The user equipment of claim 8, wherein the reference index is determined based on the scheduling information.

10. The user equipment of claim 8, wherein the predetermined hopping pattern is defined within “

N^sb_RB*N_sb”

resource blocks, and the “

N^sb_RB*N_sb”

resource blocks is within a uplink system band configured with N^UL_RB resource blocks excluding a predetermined number of resource blocks from each end of the uplink system band.

11. A method for receiving, by a base station, physical uplink shared channel (PUSCH) transmission in a time domain transmission unit, the method comprising:

transmitting frequency hopping on/off information through a physical downlink control channel (PDCCH) carrying scheduling information for the PUSCH transmission; and

receiving the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern if the frequency hopping on/off information indicates a frequency hopping on,

wherein the predetermined hopping pattern is defined by a subband hopping performed over subbands and a mirroring on/off, and

wherein the subband hopping is defined using a first integer obtained from a first random sequence, and the mirroring on/off is determined based on a second random sequence separate from the first random sequence.

12. The method of claim 11, wherein the first integer is given using the first random sequence and using calculation operation which comprises:

performing modular calculation of;

(a value generated based on the first random sequence) mod (N_sb−

1), where “

N_sb”

is a number of subbands for the subband hopping; and

adding 1 to the modular calculated value.

13. The method of claim 11, wherein the subband hopping is defined such that a resource block index, RB, of the resource block used for the PUSCH transmission is given based on

RB=(a reference index+(the first integer)*N^sb_RB)) mod (N^sb_RB*N_sb), where “

N_sb”

is a number of subbands for the subband hopping and “

N^sb_RB”

is a number of resource block in each subband.

14. The method of claim 13, wherein the reference index is determined based on the scheduling information.

15. The method of claim 13, wherein the predetermined hopping pattern is defined within “

N^sb_RB*N_sb”

resource blocks, and the “

N^sb_RB*N_sb”

resource blocks is within a uplink system band configured with N^UL_RB resource blocks excluding a predetermined number of resource blocks from each end of the uplink system band.

16. A base station for receiving physical uplink shared channel (PUSCH) transmission in a time domain transmission unit, the base station comprising:

a transmitter,

a receiver, and

a processor configured to control the transmitter and the receiver, the processor configured to;

control the transmitter to transmit frequency hopping on/off information through a physical downlink control channel (PDCCH) carrying scheduling information for the PUSCH transmission; and

control the receiver to receive the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern if the frequency hopping on/off information indicates a frequency hopping on,

wherein the predetermined hopping pattern is defined by a subband hopping performed over subbands and a mirroring on/off, and

wherein the subband hopping is defined using a first integer obtained from a first random sequence, and the mirroring on/off is determined based on a second random sequence separate from the first random sequence.

17. The base station of claim 16, wherein the first integer is given using the first random sequence and using calculation operation which comprises:

performing modular calculation of;

(a value generated based on the first random sequence) mod (N_sb−

1), where “

N_sb”

is a number of subbands for the subband hopping; and

adding 1 to the modular calculated value.

18. The base station of claim 16, wherein the subband hopping is defined such that a resource block index, RB, of the resource block used for the PUSCH transmission is given based on

RB=(a reference index+(the first integer)*N^sb_RB)) mod (N^sb_RB*N_sb), where “

N_sb”

is a number of subbands for the subband hopping and “

N^sb_RB”

is a number of resource block in each subband.

19. The base station of claim 18, wherein the reference index is determined based on the scheduling information.

20. The base station of claim 18, wherein the predetermined hopping pattern is defined within “

N^sb_RB*N_sb”

resource blocks, and the “

N^sb_RB*N_sb”

resource blocks is within a uplink system band configured with N^UL_RB resource blocks excluding a predetermined number of resource blocks from each end of the uplink system band.