Frequency hopping

• US 9,584,270 B2
• Filed: 07/10/2015
• Issued: 02/28/2017
• Est. Priority Date: 02/05/2007
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Arnott, Robert, Awad, Yassin Aden
• Primary Examiner(s): PARK, JUNG H
• Application Number:
  US14/796,133
• Publication Number:
  US 20150318963A1
• Time in Patent Office: 599 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 1/7143 Arrangements for generation of hop patterns
• CPC Class Codes: H04B 2201/71323 Adaptive systems
• CPC Class Codes: H04B 7/2621 using frequency division multiple access [FDMA] H04B7/2615 takes precedence
• CPC Class Codes: H04L 5/0005 Time-frequency
• 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: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency resource.

Claims

1. A communications node operable to communicate with another communications node, the communications node comprising:

a transceiver circuit configured to receive, from the another communications node, information which is related to resource allocation; and

a processor configured to determine at least one communication resource based on a first value and a second value;

wherein the transceiver circuit is further configured to transmit uplink data to the another communications node using the at least one communication resource;

wherein the first value is obtained from the information; and

wherein the second value is determined based on a frequency hopping function multiplied by a size of a sub-band.

2. The communications node according to claim 1, wherein the communications node is a user equipment (UE) and the another communications node is an eNodeB.

3. The communications node according to claim 1, wherein the frequency hopping function uses a pseudo-random sequence.

4. The communications node according to claim 1, wherein the processor is further configured to calculate the at least one communication resource using an equation, A mod B, wherein the A is determined based on the first value and the second value, and wherein the B is a number of resource blocks within an uplink bandwidth.

5. The communications node according to claim 4, wherein the number of resource blocks within the uplink bandwidth is based on the size of the sub-band multiplied by a number of sub-bands.

6. The communications node according to claim 1, wherein the size of the sub-band is expressed in units of resource blocks.

7. The communications node according to claim 1, wherein each value calculated by the hopping function is an integer from 0 to S−

1, where S is a number of sub-bands.

8. A communications node operable to communicate with another communications node, the communications node comprising:

a processor configured to determine a first value; and

a transceiver circuit configured to transmit, to the another communications node, information which is related to resource allocation;

wherein the processor is further configured to determine at least one communication resource based on the first value and a second value;

wherein the transceiver circuit is further configured to receive uplink data from the another communications node using the at least one communication resource; and

wherein the second value is determined based on a frequency hopping function multiplied by a size of a sub-band.

9. The communications node according to claim 8, wherein the communications node is an eNodeB and the another communications node is a user equipment (UE).

10. The communications node according to claim 8, wherein the information is determined based on the first value.

11. A method of a communications node communicating with another communications node, the method comprising:

receiving, from the another communications node, information which is related to resource allocation;

determining at least one communication resource based on a first value and a second value;

transmitting uplink data to the another communications node using the at least one communication resource;

wherein the first value is obtained from the information; and

wherein the second value is determined based on a frequency hopping function multiplied by a size of a sub-band.

12. The method according to claim 11, wherein the communications node is a user equipment (UE) and the another communications node is an eNodeB.

13. The method according to claim 12, wherein the number of resource blocks within the uplink bandwidth is based on the size of the sub-band multiplied by a number of sub-bands.

14. The method according to claim 11, wherein the frequency hopping function uses a pseudo-random sequence.

15. The method according to claim 11, further comprising calculating the at least one communication resource using an equation, A mod B, wherein the A is determined based on the first value and the second value, and wherein the B is a number of resource blocks within an uplink bandwidth.

16. The method according to claim 11, wherein the size of the sub-band is expressed in units of resource blocks.

17. The method according to claim 11, wherein each value calculated by the hopping function is an integer from 0 to S−

1, where S is a number of sub-bands.

18. A method of a communications node communicating with another communications node, the method comprising:

determining a first value;

transmitting, to the another communications node, information which is related to resource allocation;

determining at least one communication resource based on the first value and a second value; and

receiving uplink data from the another communications node using the at least one communication resource;

wherein the second value is determined based on a frequency hopping function multiplied by a size of a sub-band.

19. The method according to claim 18, wherein the communications node is an eNodeB and the another communications node is a user equipment (UE).

20. The method according to claim 18, wherein the information is determined based on the first value.