Wireless Alliance v. AT&T: LTE Carrier Aggregation Suit Dismissed With Prejudice After 657 Days
Wireless Alliance, LLC brought a patent infringement action against AT&T entities in the Eastern District of Texas, asserting three patents covering LTE uplink/downlink separation and carrier aggregation management. After 657 days of litigation — and with Nokia and Ericsson joining as intervenors — the parties jointly resolved the dispute and secured a dismissal with prejudice, with each side bearing its own costs.
LTE patent trio targets AT&T, draws Nokia and Ericsson as intervenors
Wireless Alliance, LLC filed suit on 7 March 2023 in the Eastern District of Texas (Case No. 2:23-cv-00095) against AT&T, Inc., AT&T Corp., and AT&T Services, Inc., asserting infringement of three US patents: US9144106B2, US9565662B2, and US10045383B2. The patents relate to LTE carrier aggregation technology — specifically methods for separating uplink and downlink connections and managing carrier configurations in mobile communication systems, foundational capabilities in modern 4G/LTE networks.
The case closed on 23 December 2024 via a joint motion to dismiss filed by all parties, including intervenors Nokia and Ericsson. The court granted the motion and dismissed all claims and counterclaims with prejudice. A dismissal with prejudice is a final adjudication on the merits for procedural purposes — Wireless Alliance cannot reassert these three patents against these defendants on the same claims. Each party was ordered to bear its own costs, expenses, and attorneys’ fees, with no prevailing-party fee award.
The 657-day duration and the involvement of infrastructure intervenors Nokia and Ericsson suggest the dispute extended beyond a straightforward NPE-vs-operator dynamic; the intervenors likely had independent exposure as suppliers of the accused LTE equipment. The joint resolution and mutual cost-bearing arrangement is consistent with a confidential settlement, though the public record does not confirm financial terms. The absence of a trial or Markman ruling means no public claim construction is available from this proceeding.
Filing to Dismissed with Prejudice in 657 days
657 days — above the median time-to-resolution for E.D. Texas patent cases, suggesting substantive negotiation before settlement
Dismissed with prejudice: what the joint motion outcome means for both parties
Dismissal with prejudice bars all future re-assertion on these claims
A dismissal with prejudice operates as a final judgment on the merits. Wireless Alliance cannot refile suit against AT&T, AT&T Corp., or AT&T Services, Inc. asserting the same claims under US9144106B2, US9565662B2, or US10045383B2. The same bar extends to the intervenors Nokia and Ericsson. This is the most complete form of litigation closure short of a trial verdict, and it was entered by joint motion — meaning all parties agreed to the finality.
With prejudice — re-assertion barredWireless Alliance’s patents survive but enforcement against AT&T is extinguished
The dismissal with prejudice does not invalidate US9144106B2, US9565662B2, or US10045383B2. The patents remain in force against third parties not party to this litigation. However, Wireless Alliance has permanently relinquished its right to pursue AT&T and the named intervenors on these specific claims. The mutual cost-bearing arrangement suggests neither side conceded a clear win, which is consistent with a negotiated resolution rather than capitulation.
Patents intact; AT&T claims extinguishedAT&T and intervenors Nokia and Ericsson obtain permanent closure
AT&T entities and intervenors Nokia and Ericsson secured a with-prejudice dismissal, meaning they face no further litigation risk from Wireless Alliance on these three patents for the accused conduct. Nokia and Ericsson’s participation as intervenors — typical where equipment suppliers face indemnity exposure — suggests the resolution likely addressed their downstream liability as well. No public admission of infringement or invalidity was recorded.
Full closure for AT&T and suppliersLTE carrier aggregation IP risk remains active for non-party operators
The three patents at issue cover core LTE carrier aggregation functionality deployed across virtually all major US networks. The with-prejudice dismissal resolves AT&T’s exposure but leaves the patents enforceable against T-Mobile, Verizon, and other operators not fully released in this action — though the verdict text references T-Mobile USA and Cellco Partnership (Verizon) as defendants in the joint motion, suggesting broader resolution. R&D and procurement teams in the wireless sector should monitor Wireless Alliance’s remaining enforcement activity.
Broader LTE ecosystem risk persistsFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Wireless Alliance, LLC | Company | Patent licensing entity — holder of US9144106B2, US9565662B2, and US10045383B2Search in Eureka ↗ |
| Defendant | AT&T, Inc. | Company | AT&T, Inc. and affiliates — major US wireless carrier and LTE network operatorSearch in Eureka ↗ |
| Co-Defendant | AT & T, Corp. | Company | Search in Eureka ↗ |
| Co-Defendant | AT & T Services, Inc. | Company | Search in Eureka ↗ |
| Plaintiff counsel | Adam S. Hoffman | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Amy Elizabeth Hayden | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Andrew D. Weiss | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Benjamin T. Wang | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Brian D. Ledahl | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Dale Chang | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Gregory Phillip Love | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jacob Buczko | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan D Link | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Marc A. Fenster | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Minna Jay | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Paul Anthony Kroeger | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Qi Tong | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Reza Mirzaie | Attorney | Counsel for Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Russ August & Kabat LLP | Law Firm | Representing Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Russ August & Kabat LLP (Los Angeles) | Law Firm | Representing Wireless Alliance, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Steckler Wayne Cherry & Love, PLLC | Law Firm | Representing Wireless Alliance, LLCSearch in Eureka ↗ |
| Defendant counsel | Adam Bertram Ahnhut | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Darlena Subashi | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | David S. Frist | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Deron R. Dacus | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Elliott Richard Charles Riches | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Emily Chambers Welch | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | John Daniel Haynes | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Joshua Mark Weeks | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Matthew Scott Stevens | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Michael Clayton Deane | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Nicolette Nunez | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Ross Ritter Barton | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Sloane Sueanne Kyrazis | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant counsel | Theodore Stevenson , III | Attorney | Counsel for AT&T, Inc.Search in Eureka ↗ |
| Defendant law firm | Alston & Bird LLP | Law Firm | Representing AT&T, Inc.Search in Eureka ↗ |
| Defendant law firm | Alston & Bird LLP (Atlanta) | Law Firm | Representing AT&T, Inc.Search in Eureka ↗ |
| Defendant law firm | Alston & Bird LLP (Dallas) | Law Firm | Representing AT&T, Inc.Search in Eureka ↗ |
| Defendant law firm | Gish PLLC | Law Firm | Representing AT&T, Inc.Search in Eureka ↗ |
| Defendant law firm | The Dacus Firm PC | Law Firm | Representing AT&T, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order adopts the joint motion language verbatim, granting dismissal with prejudice of all claims and counterclaims across the consolidated actions. Notably, the order names AT&T Mobility LLC, AT&T Services, Inc., AT&T Corp., T-Mobile USA, Inc., and Cellco Partnership d/b/a Verizon Wireless as defendants — and Nokia and Ericsson as intervenors — suggesting this was a multi-case consolidated resolution. The phrase ‘cases have been resolved’ is the parties’ own characterisation, consistent with a private settlement. The mutual cost-bearing clause removes any fee-shifting inference and leaves no public record of relative litigation leverage.
US9144106B2, US9565662B2 & US10045383B2 — LTE Carrier Aggregation and Uplink/Downlink Separation
The three patents in suit — US9144106B2 (App. No. 13/884,216), US9565662B2 (App. No. 14/831,023), and US10045383B2 (App. No. 15/606,985) — form a related family addressing LTE carrier aggregation technology. US9144106B2 is directed to methods and apparatus for separating uplink and downlink connections, a key feature in LTE-Advanced networks that enables devices to use different frequency bands for transmitting and receiving. US9565662B2 and US10045383B2 extend this to carrier management and configuration in multi-carrier environments, covering how user equipment and base stations negotiate and maintain aggregated carrier sets.
Carrier aggregation is a foundational LTE-Advanced and 5G-NR capability — it underpins peak data throughput for every major US operator’s network. Patents claiming priority to these application numbers sit at the intersection of 3GPP standards and implementation-level claims, creating potential standard-essential or near-essential exposure for operators and their equipment vendors. The involvement of Nokia and Ericsson as intervenors reinforces that the accused functionality was implemented at the infrastructure layer, not merely in handset software — broadening the potential defendant pool across the wireless supply chain.
Should your team run an FTO against US9144106B2, US9565662B2, and US10045383B2?
Any company developing, deploying, or supplying LTE-Advanced or 5G-NR carrier aggregation functionality should assess exposure to this patent family. The claims target method-level implementation of multi-carrier connection management — meaning both network equipment vendors and mobile operators could be within scope. The resolution of this case against AT&T, T-Mobile, and Verizon entities does not extinguish the patents’ enforceability against other parties, and continuation applications from the same priority chain may still be pending.
PatSnap Eureka’s FTO Search Agent allows you to map claims from US9144106B2, US9565662B2, and US10045383B2 against your product architecture in minutes. Eureka identifies prior art, claim scope boundaries, and related family members — including any pending continuations — so your legal and R&D teams can make informed design-around or licensing decisions before enforcement notice arrives. Run your FTO search directly from this page.
Run a freedom-to-operate analysis on US9144106B2 to assess your product’s exposure
Run FTO in Eureka →Similar LTE carrier aggregation patent suits in E.D. Texas and related venues
Cases involving LTE carrier aggregation and uplink/downlink separation patents filed in the Eastern District of Texas against major US wireless operators and their equipment suppliers.
What this case signals for the LTE carrier aggregation IP landscape
A three-patent LTE suit drawing in two infrastructure giants as intervenors signals how deep supply-chain exposure runs in wireless network patent litigation.
Intervenor participation signals equipment-supplier indemnity exposure in LTE suits
Nokia and Ericsson’s entry as intervenors is a strong indicator that LTE patent suits against operators routinely trigger indemnity obligations upstream. Equipment suppliers and their legal teams should map carrier aggregation patent exposure proactively — waiting for an operator to tender a defense notice is a costly posture.
With-prejudice joint dismissals in E.D. Texas typically signal confidential settlement
The combination of a joint motion, mutual cost-bearing, and dismissal with prejudice — with no public claim construction or trial record — is strongly consistent with a confidential financial resolution. Patent licensors and defendants should treat the absence of public terms as confirmation, not as ambiguity, when benchmarking similar disputes.
Wireless v AT&T — key questions answered
Wireless Alliance asserted three patents: US9144106B2, US9565662B2, and US10045383B2. All three relate to LTE carrier aggregation technology, covering methods for uplink/downlink connection separation and carrier management in multi-carrier mobile communication systems. The case was filed in the Eastern District of Texas on 7 March 2023.
Nokia and Ericsson are identified as intervenors in the joint motion to dismiss. While the public record does not state their basis for intervention, equipment suppliers commonly intervene in operator patent suits where they have indemnity obligations to the accused operator for equipment that allegedly practices the asserted patents. This pattern is typical in LTE infrastructure litigation where the accused functionality is implemented in vendor-supplied base stations or core network components.
The dismissal with prejudice extinguishes Wireless Alliance’s right to sue AT&T, AT&T Corp., AT&T Services, Nokia, and Ericsson on these three patents for the conduct at issue. However, the patents themselves are not invalidated and remain enforceable against third parties not covered by the dismissal order. The resolution does not create any public claim construction record or invalidity finding that third parties could rely on.
The public record does not disclose financial settlement terms. The joint motion states that ‘the above-captioned cases have been resolved,’ which is language consistent with a confidential settlement agreement. The mutual cost-bearing provision — each party bears its own fees — is also consistent with a negotiated resolution rather than a capitulation by either side. No judgment amount or royalty rate appears in the public docket.
The joint motion to dismiss names T-Mobile USA, Inc. and Cellco Partnership d/b/a Verizon Wireless as defendants alongside the AT&T entities, suggesting the resolution encompassed related cases filed against multiple major US carriers. The consolidated dismissal with prejudice covered all named defendants and intervenors, indicating a coordinated industry-wide resolution of Wireless Alliance’s LTE carrier aggregation claims.
PatSnap Eureka searches patents and litigation data to answer instantly.