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

• US 9,590,693 B2
• Filed: 07/11/2014
• Issued: 03/07/2017
• 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:
  US14/329,218
• Publication Number:
  US 20140321510A1
• Time in Patent Office: 970 Days
• US Class Current: 1/1
• 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:

performing the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern of a frequency hopping,

wherein the predetermined hopping pattern is defined by a combination of a first hopping pattern using a subband hopping which is performed over subbands and a second hopping pattern using a mirroring according to which resource blocks within one subband are arranged reversely based on a center of the one subband, and

wherein the first hopping pattern is defined by using a first integer obtained from a first random sequence and the second hopping pattern is defined by using a second integer obtained from a second random sequence separate from the first random sequence.

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

performing modular calculation of;

(a value generated based on the m-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 first hopping pattern 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 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.

5. The method of claim 1, wherein the second hopping pattern is defined such that a value of 0 and a value of 1 are respectively mapped to a mirroring-off and a mirroring-on according to the second random sequence.

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

an antenna; and

a transmitter operatively coupled to the antenna and configured to perform the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern of a frequency hopping,

wherein the predetermined hopping pattern is defined by a combination of a first hopping pattern using a subband hopping which is performed over subbands and a second hopping pattern using a mirroring according to which resource blocks within one subband are arranged reversely based on a center of the one subband, and

wherein the first hopping pattern is defined by using a first integer obtained from a first random sequence and the second hopping pattern is defined by using a second integer obtained from a second random sequence separate from the first random sequence.

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

performing modular calculation of;

(a value generated based on the m-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 first hopping pattern 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 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.

10. The user equipment of claim 6, wherein the second hopping pattern is defined such that a value of 0 and a value of 1 are respectively mapped to a mirroring-off and a mirroring-on according to the second random sequence.

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

receiving the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern of a frequency hopping,

wherein the predetermined hopping pattern is defined by a combination of a first hopping pattern using a subband hopping which is performed over subbands and a second hopping pattern using a mirroring according to which resource blocks within one subband are arranged reversely based on a center of the one subband, and

wherein the first hopping pattern is defined by using a first integer obtained from a first random sequence and the second hopping pattern is defined by using a second integer obtained from a second random sequence separate from the first random sequence.

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

performing modular calculation of;

(a value generated based on the m-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 first hopping pattern 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 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.

15. The method of claim 11, wherein the second hopping pattern is defined such that a value of 0 and a value of 1 are respectively mapped to a mirroring-off and a mirroring-on according to the second random sequence.

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

an antenna; and

a receiver operatively coupled to the antenna and configured to receive the PUSCH transmission on a resource block in the time domain transmission unit according to a predetermined hopping pattern of a frequency hopping,

wherein the predetermined hopping pattern is defined by a combination of a first hopping pattern using a subband hopping which is performed over subbands and a second hopping pattern using a mirroring according to which resource blocks within one subband are arranged reversely based on a center of the one subband, and

wherein the first hopping pattern is defined by using a first integer obtained from a first random sequence and the second hopping pattern is defined by using a second integer obtained from a second random sequence separate from the first random sequence.

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

performing modular calculation of;

(a value generated based on the m-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 first hopping pattern 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 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.

20. The base station of claim 16, wherein the second hopping pattern is defined such that a value of 0 and a value of 1 are respectively mapped to a mirroring-off and a mirroring-on according to the second random sequence.