IP Library › Granted Patent US 12,369,094
Granted Patent B2
US 12,369,094 · App. 18/508,046 · Granted Jul 22, 2025

Distributed antenna system

Inventors: Shawn Patrick Stapleton (Vancouver, CA); Paul Lemson (Woodinville, WA); Bin Lin (Burnaby, CA); Albert S. Lee (San Mateo, CA)
Assignee: DALI WIRELESS, INC.
H04W40/02H03F1/3247H03F3/24H04B1/0475H04B7/022H04L25/03343H04L27/2618H04L27/362H04W24/02H04W24/04H04W40/00H04W72/04H04W72/0453H04W88/085H03F2200/336H03F2200/57H03F2201/3224H03F2201/3233H04B2001/0425H04L2025/03414
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Quick Facts
Patent No.
US 12,369,094
App. No.
18/508,046
Granted
Jul 22, 2025
Kind
B2
Abstract

The present disclosure is a novel utility of a software defined radio (SDR) based Distributed Antenna System (DAS) that is field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. The present invention enables a high degree of flexibility to manage, control, enhance, facilitate the usage and performance of a distributed wireless network such as Flexible Simulcast, automatic traffic load-balancing, network and radio resource optimization, network calibration, autonomous/assisted commissioning, carrier pooling, automatic frequency selection, frequency carrier placement, traffic monitoring, traffic tagging, pilot beacon, etc. As a result, a DAS in accordance with the present invention can increase the efficiency and traffic capacity of the operators' wireless network.

Claims (39)

1. A system for transporting wireless communications, comprising:

a set of digital access units (DAUs) including:

a first DAU that assigns a first subset of a set of radio resources, and a second DAU that is communicatively coupled to the first DAU and assigns a second subset of the set of radio resources; and

two or more remote units, including:

a first remote unit that is communicatively coupled to the first DAU and includes a first antenna configurable for transmitting the first subset of the set of radio resources, and

a second remote unit that is communicatively coupled to the second DAU and includes a second antenna configurable for transmitting the second subset of the set of radio resources,

wherein the radio resources in the first subset differs from the radio resources in the second subset,

configuration information received at the first remote unit indicating the first subset of the set of radio resources are assigned by the first DAU to the first remote unit, and

configuration information received at the second remote unit indicating the second subset of the set of radio resources are assigned by the second DAU to the second remote unit.

2. The system of claim 1 , wherein the radio resources in the first subset differs from the radio resources in the second subset in a number of channels.

3. The system of claim 1 , wherein the set of radio resources corresponds to a set of radio-frequency carriers.

4. The system of claim 1 , wherein the set of radio resources corresponds to a set of code-division multiple access (CDMA) codes.

5. The system of claim 1 , wherein the set of radio resources corresponds to a set of time-division multiple access (TDMA) time slots.

6. The system of claim 1 , wherein the set of DAUs assign the set of radio resources to the two or more remote units based at least in part on at least one of: a capacity objective or a throughput objective.

7. The system of claim 1 , wherein the set of DAUs removes an assignment of one or more radio resources to the two or more remote units in response to determining that the one or more radio resources are no longer needed in a corresponding coverage area of the two or more remote units.

8. A method for transporting wireless communications, comprising:

assigning, by a first digital access unit (DAU), a first subset of a set of radio resources to a first remote unit, the first remote unit communicatively coupled to the first DAU and including a first antenna configurable for transmitting the first subset of the set of radio resources;

assigning, by a second DAU communicatively coupled to the first DAU, a second subset of the set of radio resources to a second remote unit, the second remote unit including a second antenna configurable for transmitting the second subset of the set of radio resources;

receiving, by the first remote unit, configuration information indicating the first subset of the set of radio resources assigned by the first DAU to the first remote unit; and

receiving, by the second remote unit, configuration information indicating the second subset of the set of radio resources assigned by the second DAU to the second remote unit;

wherein the radio resources in the first subset differs from the radio resources in the second subset.

9. The method of claim 8 , wherein the radio resources in the first subset differs from the radio resources in the second subset in a number of channels.

10. The method of claim 8 , wherein the set of radio resources corresponds to a set of radio-frequency carriers.

11. The method of claim 8 , wherein the set of radio resources corresponds to a set of code-division multiple access (CDMA) codes.

12. The method of claim 8 , wherein the set of radio resources corresponds to a set of time-division multiple access (TDMA) time slots.

13. The method of claim 8 , further comprising removing, by the first DAU, an assignment of one or more radio resources to the first remote unit in response to determining that the one or more radio resources are no longer needed in a coverage area of the first remote unit.

14. The method of claim 8 , wherein the first DAU and the second DAU are configured to assign the set of radio resources based at least in part on at least one of: a capacity objective or a throughput objective.

15. A method for transporting wireless communications, comprising:

assigning, by a first digital access unit (DAU), a first subset of a set of radio resources to a first remote unit, the first remote unit communicatively coupled to the first DAU and including a first antenna configurable for transmitting the first subset of the set of radio resources;

assigning, by a second DAU communicatively coupled to the first DAU, a second subset of the set of radio resources to a second remote unit, the second remote unit including a second antenna configurable for transmitting the second subset of the set of radio resources;

receiving, by the first remote unit, configuration information indicating the first subset of the set of radio resources assigned by the first DAU to the first remote unit;

receiving, by the second remote unit, configuration information indicating the second subset of the set of radio resources assigned by the second DAU to the second remote unit;

removing, by the first DAU, an assignment of one or more radio resources to the first remote unit; and

assigning, by the second DAU, the one or more radio resources to the second remote unit.

16. The method of claim 15 , wherein the assignment of the one or more radio resources to the first remote unit is removed in response to determining that the one or more radio resources are no longer needed in a coverage area of the first remote unit.

17. The method of claim 15 , further comprising determining to deploy the one or more radio resources to the second remote unit based at least in part on a load at the second remote unit exceeding a threshold.

18. The method of claim 15 , wherein the first subset and the second subset correspond to different frequency bands.

19. The method of claim 15 , wherein the first subset and the second subset differ in a number of channels.

20. The method of claim 15 , wherein the set of radio resources corresponds to at least one of: a set of radio-frequency carriers, a set of code-division multiple access (CDMA) codes, or a set of time-division multiple access time slots.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2024
From: STAPLETON, SHAWN PATRICK; LEMSON, PAUL; LIN, BIN
To: DALI SYSTEMS CO. LTD.
Reel/Frame 068645/0187 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2024
From: LEE, ALBERT S.
To: DALI SYSTEMS CO. LTD.
Reel/Frame 068645/0258 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2024
From: DALI SYSTEMS CO. LTD.
To: DALI WIRELESS, INC.
Reel/Frame 068645/0343 →
Continuity (9)
Continuation 17313658 · May 6, 2021
Continuation 16410860 · May 13, 2019
Continuation 16059434 · Aug 9, 2018
Continuation 15223819 · Jul 29, 2016
Continuation 14800515 · Jul 15, 2015
Continuation 14260145 · Apr 23, 2014
Continuation 13211247 · Aug 16, 2011
Provisional Application 61439940 · Feb 7, 2011
Related Publication 20240314668A1 · Sep 19, 2024
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Adverse Judgement for IPR2023-00844 entered Jan. 2, 2024. [cited by applicant]
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Final Written Decision for IPR2022-01345 filed Mar. 6, 2024. [cited by applicant]
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Final Written Decision for IPR2023-00820 filed Mar. 6, 2024. [cited by applicant]
Final Written Decision for IPR2023-00832 filed Mar. 6, 2024. [cited by applicant]
Institution Decision Granting Inter Partes Review for for IPR2023-00820 entered Aug. 1, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2022-01212 entered Feb. 1, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2022-01242 entered Feb. 7, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2022-01293 entered Mar. 9, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2022-01345 entered Mar. 9, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2022-01419 entered Mar. 9, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2022-01570 entered May 17, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2023-00646 entered Jun. 30, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2023-00818 entered Aug. 14, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2023-00830 entered Oct. 11, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2023-00832 entered Aug. 2, 2023. [cited by applicant]
Institution Decision Granting Inter Partes Review for IPR2023-00844 entered Sep. 13, 2023. [cited by applicant]
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Inter Partes Review No. 2023-00820 for U.S. Pat. No. 11,006,343 filed Apr. 6, 2023. ( ** Available in P-TACTS). [cited by applicant]
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Inter Partes Review No. 2020-01430 for U.S. Pat. No. 10,334,499 filed Aug. 6, 2020. ( ** Available in P- Tacts). [cited by applicant]
Inter Partes Review No. 2020-01466 for U.S. Pat. No. 8,682,338 filed Aug. 13, 2020. ( ** Available in P- Tacts). [cited by applicant]
Inter Partes Review Number 2020-01473 for U.S. Patent No. 10,080, 178 Filed Aug. 14, 2020. ( ** Available in P- Tacts). [cited by applicant]
Inter Partes Review No. 2022-01212 for U.S. Pat. No. 8,682,338 filed Jul. 22, 2022. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2022-01242 for U.S. Pat. No. 11,026,232 filed Jul. 1, 2022. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2022-01293 for U.S. Pat. No. 10,334,499 filed Jul. 20, 2022. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2022-01345 for U.S. Pat. No. 11,006,343 filed Aug. 3, 2022. ( ** Available in P- Tacts). [cited by applicant]
Inter Partes Review No. 2022-01419 for U.S. Pat. No. 10,334,499 filed Aug. 15, 2022. ( ** Available in P- Tacts). [cited by applicant]
Inter Partes Review No. 2022-01570 for U.S. Pat. No. 11,026,232 filed Sep. 23, 2022. ( ** Available in P- Tacts). [cited by applicant]
Inter Partes Review No. 2023-00646 for U.S. Pat. No. 8,682,338 filed Mar. 1, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review Number 2023-00700 for U.S. Patent No. 9,820, 171 filed Mar. 15, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2023-00818 for U.S. Pat. No. 10,334,499 filed Apr. 7, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2023-00830 for U.S. Pat. No. 10,334,499 filed Apr. 10, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2023-00832 for U.S. Pat. No. 11,006,343 filed Apr. 10, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2023-00844 for U.S. Pat. No. 11,026,232 filed Apr. 14, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review No. 2023-00856 for U.S. Pat. No. 11,026,232 filed Apr. 17, 2023. ( ** Available in P-TACTS). [cited by applicant]
Inter Partes Review Number IPR2020-01432 for U.S. Patent No. 9,820, 171 filed Aug. 6, 2020. ( ** Available in P- Tacts). [cited by applicant]
Petition for Inter Partes Review for 2022-01419 in U.S. Pat. No. 10,334,499 filed Aug. 15, 2022. [cited by applicant]
Petition for Inter Partes Review for IPR2018-00571 in U.S. Pat. No. 9,531,473 filed Feb. 2, 2018. [cited by applicant]
Petition for Inter Partes Review for IPR2020-01430 in U.S. Pat. No. 10,334,499 filed Aug. 6, 2020. [cited by applicant]
Petition for Inter Partes Review for IPR2020-01432 in U.S. Patent No. 9,820, 171 filed Aug. 6, 2020. [cited by applicant]
Petition for Inter Partes Review for IPR2020-01466 in U.S. Pat. No. 8,682,338 filed Aug. 13, 2020. [cited by applicant]
Petition for Inter Partes Review for IPR2020-01473 in U.S. Patent No. 10,080, 178 filed Aug. 14, 2020. [cited by applicant]
Petition for Inter Partes Review for IPR2022-01212 in U.S. Pat. No. 8,682,338 filed Jul. 22, 2022. [cited by applicant]
Petition for Inter Partes Review for IPR2022-01242 in U.S. Pat. No. 11,026,232 filed Jul. 1, 2022. [cited by applicant]
Petition for Inter Partes Review for IPR2022-01293 in U.S. Pat. No. 10,334,499 filed Jul. 20, 2022. [cited by applicant]
Petition for Inter Partes Review for IPR2022-01345 in U.S. Pat. No. 11,006,343 filed Aug. 3, 2022. [cited by applicant]
Petition for Inter Partes Review for IPR2022-01570 in U.S. Pat. No. 11,026,232 filed Sep. 23, 2022. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00646 in U.S. Pat. No. 8,682,338 filed Mar. 1, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00700 in U.S. Patent No. 9,820, 171 filed Mar. 15, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00818 U.S. Pat. No. 10,334,499 Apr. 7, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00820 in U.S. Pat. No. 11,006,343 filed Apr. 6, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00830 in U.S. Pat. No. 10,334,499 filed Apr. 10, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00832 in U.S. Pat. No. 11,006,343 filed Apr. 10, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00844 in U.S. Pat. No. 11,026,232 filed Apr. 14, 2023. [cited by applicant]
Petition for Inter Partes Review for IPR2023-00856 in U.S. Pat. No. 11,026,232 filed Apr. 17, 2023. [cited by applicant]
Petitioner Reply for IPR2020-01345 filed Oct. 5, 2023. [cited by applicant]
Petitioner's Preliminary Reply to Patent Owner's Preliminary Response for IPR2022-01242 filed Dec. 7, 2022. [cited by applicant]
Petitioner's Preliminary Reply to Patent Owner's Preliminary Response for IPR2022-01293 filed Jan. 26, 2023. [cited by applicant]
Petitioner's Reply for IPR2018-00571 filed Jan. 11, 2019. [cited by applicant]
Petitioner's Reply for IPR2020-01430 filed Dec. 4, 2020. [cited by applicant]
Petitioner's Reply for IPR2020-01432 filed Dec. 4, 2020. [cited by applicant]
Petitioner's Reply for IPR2020-01473 filed Jan. 21, 2021. [cited by applicant]
Petitioner's Reply for IPR2022-01242 filed Aug. 30, 2023. [cited by applicant]
Petitioner's Reply for IPR2022-01293 filed Aug. 28, 2023. [cited by applicant]
Petitioner's Reply to Patent Owner's Preliminary Response for IPR No. IPR2022-01345 filed Jan. 4, 2023. [cited by applicant]
Petitioner's Reply to Patent Owner's Preliminary Response for IPR2022-01212 filed Dec. 13, 2022. [cited by applicant]
Petitioner's Reply to Patent Owner's Preliminary Response for IPR2022-01419 filed Jan. 4, 2023. [cited by applicant]
Petitioner's Reply to Patent Owner's Response for IPR2022-01419 filed Oct. 5, 2023. [cited by applicant]
Petitioner's Response for IPR2022-01212 filed Aug. 9, 2023. [cited by applicant]
Termination Decision for IPR2020-01473 filed Jun. 30, 2021. [cited by applicant]
Final Written Decision for IPR2023-00646 entered Jan. 30, 2024. [cited by applicant]
Final Written Decision for IPR2022-01212 entered Jan. 30, 2024. [cited by applicant]