System and method for assigning frequency resources in a three-hop repeater

• US 10,454,563 B2
• Filed: 11/03/2015
• Issued: 10/22/2019
• Est. Priority Date: 11/03/2014
• Status: Active Grant

• Current Assignee: Nextivity Incorporated
• Original Assignee: Nextivity Incorporated
• Inventors: Lotter, Michiel Petrus
• Primary Examiner(s): Daya, Tejis
• Application Number:
  US14/931,801
• Publication Number:
  US 20160128068A1
• Time in Patent Office: 1,449 Days
• CPC Class Codes: H04B 7/15542 Selecting at relay station its transmit and receive resources selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

A system and method for allocating frequency resources in a three-hop repeater are disclosed. Bandwidth can be allocated asymmetrically, and in non-contiguous blocks for the required bandwidth for a transmission operation. Bandwidth is dynamically allocated on an as-needed basis.

Claims

1. A method of assigning frequency resources in a wireless communication booster, in either a downlink direction or uplink direction on a middle hop of a three-hop repeater, the middle hop being between a network unit and a coverage unit both contained within an enclosure of the wireless communication booster, the method comprising:

selecting a transmission band for a transmission operation on the middle hop of the three-hop repeater, the middle hop being within the enclosure, the transmission band being selected from an unlicensed or general use band of frequencies;

scanning the transmission band for interference to the transmission operation;

dynamically allocating a center frequency and a required bandwidth for the transmission operation within the transmission band, the allocation being based on a lowest interference within the transmission band, wherein frequency resources are allocated in the downlink direction of the middle hop;

deallocating, in response to a detected need of frequency resources in the uplink direction of the middle hop, a portion of frequency resources allocated in the downlink direction; and

allocating the deallocated portion of frequency resources to the uplink direction.

2. The method in accordance with claim 1, wherein the middle hop of the three-hop repeater uses an unlicensed or general use band of frequencies.

3. The method in accordance with claim 1, wherein the middle hop of the three-hop repeater uses a licensed band of frequencies that requires registration of either the network unit or coverage unit for the transmission operation.

4. The method in accordance with claim 2, wherein the required bandwidth is allocated in one or more noncontiguous blocks of spectrum of the unlicensed or general use band of frequencies.

5. A method of dynamically assigning frequency resources in a wireless communication booster in an uplink direction on a middle hop of a three-hop repeater, the middle hop being between a network unit and a coverage unit both contained within an enclosure of the wireless communication booster, the method comprising:

detecting a need to assign frequency resources based on a detection of uplink traffic on the middle hop of the three-hop repeater, the middle hop being within the enclosure;

selecting a transmission band for a transmission operation on the middle hop of the three-hop repeater, the transmission band being selected from an unlicensed or general use band of frequencies;

scanning the transmission band for interference to the transmission operation; and

dynamically allocating a center frequency and a required bandwidth for the transmission operation within the transmission band, the allocation being based on a lowest interference within the transmission band;

wherein frequency resources are allocated in a downlink direction of the middle hop;

wherein a portion of frequency resources allocated in the downlink direction are deallocated from the downlink direction in response to the detected need to assign frequency resources in the uplink direction of the middle hop; and

wherein the deallocated portion of frequency resources in the downlink direction of the middle hop is assigned to the uplink direction.

6. The method in accordance with claim 5, wherein the middle hop of the three-hop repeater uses an unlicensed or general use band of frequencies.

7. The method in accordance with claim 5, wherein the middle hop of the three-hop repeater uses a licensed band of frequencies that requires registration of either the network unit or coverage unit for the transmission operation.

8. The method in accordance with claim 6, wherein the required bandwidth is allocated in one or more noncontiguous blocks of spectrum of the unlicensed or general use band of frequencies.

9. A method for dynamically de-assigning frequency resources in a wireless communication booster in a downlink direction on a middle hop of a three-hop repeater of the wireless communication booster, the middle hop being between a network unit and a coverage unit for boosting and relaying signals between the network unit and the coverage unit, both the network unit and the coverage unit being contained within an enclosure of the wireless communication booster, the method comprising:

detecting a need to assign frequency resources in an uplink direction based on a detection of uplink traffic on the middle hop of the three-hop repeater, the middle hop being within the enclosure, the frequency resources being assigned from an unlicensed or general use band of frequencies;

if no additional frequency resources are available in the uplink direction for a transmission operation on the middle hop of the three-hop repeater, finding frequency resources currently assigned in the downlink direction to relay a downlink signal for whose paired uplink transmission no frequency resources were available; and

de-assigning the frequency resources in the downlink direction so that the downlink signal is no longer boosted;

wherein frequency resources are allocated in the downlink direction;

wherein the frequency resources in the downlink direction are de-assigned from the downlink direction in response to the need to assign frequency resources in the uplink direction of the middle hop; and

wherein the de-assigned frequency resources in the downlink direction are allocated to the uplink direction.

10. The method in accordance with claim 9, wherein the middle hop of the three-hop repeater uses an unlicensed or general use band of frequencies.

11. The method in accordance with claim 9, wherein the middle hop of the three-hop repeater uses a licensed band of frequencies that requires registration of either the network unit or coverage unit for the transmission operation.

12. The method in accordance with claim 10, wherein a required bandwidth is allocated in one or more noncontiguous blocks of spectrum of the unlicensed or general use band of frequencies.