DCT

7:26-cv-00341

Hannibal IP LLC v. Apple Inc

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I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 7:26-cv-00341, W.D. Tex., 08/28/2026
  • Venue Allegations: Venue is based on Defendant Apple Inc. having regular and established places of business within the Western District of Texas, including its "Austin Campus" where it employs numerous individuals involved in the research, design, and testing of cellular technologies.
  • Core Dispute: Plaintiff alleges that Defendant's 5G-compatible smartphones and tablets infringe six U.S. patents related to 5G wireless communication protocols for beam management, resource allocation, and failure detection.
  • Technical Context: The lawsuit concerns fundamental technologies for managing complex antenna beam operations and data transmission in 5G New Radio (NR) networks, which are critical for achieving the high-speed, low-latency performance of modern wireless devices.
  • Key Procedural History: The complaint alleges that Apple had knowledge of one or more of the asserted patents since at least May 27, 2022. Plaintiff asserts that the patents are essential to the 3GPP 5G Standard and that it has complied with its obligations to offer a license on Fair, Reasonable, and Non-Discriminatory (FRAND) terms.

Case Timeline

Date Event
2018-06-08 U.S. Patent No. 10,911,201 Priority Date
2018-11-01 U.S. Patent Nos. 11,057,896 & 11,641,661 Priority Date
2018-11-09 U.S. Patent No. 12,108,412 Priority Date
2019-01-09 U.S. Patent No. 11,272,535 Priority Date
2019-04-08 U.S. Patent No. 11,683,142 Priority Date
2020 Launch of iPhone 12 (first 5G-compatible Accused Product)
2021 Launch of iPad Pro (3rd gen) cellular (Accused Product)
2021-02-02 U.S. Patent No. 10,911,201 Issues
2021-07-06 U.S. Patent No. 11,057,896 Issues
2022-03-08 U.S. Patent No. 11,272,535 Issues
2022-05-27 Alleged date of Apple's knowledge of one or more Asserted Patents
2022-10-07 Alleged date of Apple's knowledge of the '896 Patent
2023-02-09 Alleged date of Apple's knowledge of the '535 Patent
2023-05-02 U.S. Patent No. 11,641,661 Issues
2023-06-20 U.S. Patent No. 11,683,142 Issues
2024-09-10 Alleged date of Apple's knowledge of the '142 Patent
2024-10-01 U.S. Patent No. 12,108,412 Issues
2025-02 Alleged launch of Apple C-1 Modem
2026-03 Alleged launch of Apple C1X Modem
2026-08-28 Complaint Filing Date

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 11,057,896 - "Methods and Apparatuses of Determining Quasi Co-Location (QCL) Assumptions for Beam Operations"

  • Patent Identification: U.S. Patent No. 11057896, "Methods and Apparatuses of Determining Quasi Co-Location (QCL) Assumptions for Beam Operations," issued July 6, 2021.

The Invention Explained

  • Problem Addressed: In 5G networks, a User Equipment (UE) may be configured with multiple Control Resource Sets (CORESETs), which are regions in the wireless signal for receiving control information. The patent's background describes that ambiguity can arise for the UE in determining the correct "beam" or Quasi Co-Location (QCL) assumption to use, potentially leading to unfavorable beam switching and performance degradation ʼ896 Patent, col. 1:31-45
  • The Patented Solution: The invention provides a deterministic method for a UE to select a default beam. It specifies that when a UE needs to receive an aperiodic Channel Status Information-Reference Signal (CSI-RS), it should apply the QCL assumption of a specific CORESET-the one associated with a monitored search space that has the lowest CORESET Identity (ID) among all the monitored CORESETs ʼ896 Patent, abstract ʼ896 Patent, col. 6:8-27 This creates a clear fallback rule.
  • Technical Importance: This solution provides a reliable and predictable rule for beam selection in complex 5G scenarios with multiple control regions, enhancing communication stability by preventing incorrect beam assumptions.

Key Claims at a Glance

  • The complaint asserts at least independent claim 1 Compl. ¶35
  • The essential elements of claim 1 are:
    • A user equipment (UE) with a processor and memory.
    • The processor is configured to monitor at least one of a plurality of CORESETs within an active Bandwidth Part (BWP) of a serving cell in a time slot.
    • The processor is configured to apply a first QCL assumption of a first CORESET of a set of one or more monitored CORESETs to receive an aperiodic CSI-RS.
    • The first CORESET is associated with a monitored search space configured with a lowest CORESET ID among the set of one or more monitored CORESETs.
  • The complaint does not explicitly reserve the right to assert other claims, but this is standard practice.

U.S. Patent No. 11,641,661 - "Methods and Apparatuses of Determining Quasi Co-Location (QCL) Assumptions for Beam Operations"

  • Patent Identification: U.S. Patent No. 11641661, "Methods and Apparatuses of Determining Quasi Co-Location (QCL) Assumptions for Beam Operations," issued May 2, 2023.

The Invention Explained

  • Problem Addressed: Similar to the ʼ896 Patent, this invention addresses ambiguity in QCL assumptions. It specifically focuses on scenarios where the time gap ("scheduling offset") between receiving control instructions (on the PDCCH) and the corresponding data (on the PDSCH) is very short, leaving the UE little time to determine the correct beam '661 Patent, col. 6:28-36
  • The Patented Solution: The patent proposes a method where, if this scheduling offset is less than a predefined threshold, the UE defaults to applying the QCL assumption from the CORESET that has the lowest ID among the set of monitored CORESETs to receive a downlink reference signal '661 Patent, abstract '661 Patent, col. 6:40-52 This provides a fast and reliable fallback beam assumption for low-latency situations.
  • Technical Importance: The invention ensures stable beam management for low-latency 5G communications, which is critical for applications requiring rapid data exchange, by providing a deterministic default behavior when decision time is minimal.

Key Claims at a Glance

  • The complaint asserts at least independent claim 1 Compl. ¶53
  • The essential elements of claim 1 are:
    • A user equipment (UE) with a processor and memory.
    • The processor is configured to monitor at least one of a plurality of CORESETs.
    • The processor is configured to receive Downlink Control Information (DCI) scheduling a Downlink Reference Signal (DL RS).
    • A scheduling offset between the end of the DCI transmission and the start of the DL RS resource is less than a threshold.
    • The processor is configured to apply a first QCL assumption of a first CORESET to receive the DL RS, where the first CORESET is associated with the lowest CORESET ID among the monitored CORESETs.
  • The complaint does not explicitly reserve the right to assert other claims.

Multi-Patent Capsule: U.S. Patent No. 11,272,535

  • Patent Identification: U.S. Patent No. 11272535, "Method and Apparatus for LBT Failure Detection," issued March 8, 2022.
  • Technology Synopsis: The patent describes a method for a user device to manage Listen-Before-Talk (LBT) procedures, which are required for operating in unlicensed radio spectrum. It specifies a process where the device's Medium Access Control (MAC) layer receives failure indications from the physical layer, increments a counter, and declares an LBT failure event upon the counter reaching a threshold, enabling failure recovery actions '535 Patent, abstract
  • Asserted Claims: At least Claim 1 Compl. ¶72
  • Accused Features: The complaint alleges Apple's 5G devices implement the standardized LBT failure detection and recovery procedure, including receiving failure indications, incrementing an LBT counter, and determining a failure event based on a threshold, in compliance with the 3GPP standard Compl. ¶¶77-80

Multi-Patent Capsule: U.S. Patent No. 11,683,142

  • Patent Identification: U.S. Patent No. 11683142, "Method of Deriving QCL Assumption in Multi-Panel Transmission and Related Device," issued June 20, 2023.
  • Technology Synopsis: This patent addresses beam management for devices with multiple antenna panels communicating with multiple transmission/reception points (TRPs). The invention outlines a method for a UE to obtain CORESET groups from the network and determine a default QCL assumption for a data channel based on a specific CORESET within those groups, particularly in low-latency scheduling scenarios '142 Patent, abstract
  • Asserted Claims: At least Claim 10 Compl. ¶92
  • Accused Features: The complaint alleges Apple devices support multi-TRP operations by reporting their capabilities and using CORESET groups (identified by "coresetPoolIndex") to determine default QCL assumptions for data reception, as specified in the 3GPP standard Compl. ¶¶95-99

Multi-Patent Capsule: U.S. Patent No. 10,911,201

  • Patent Identification: U.S. Patent No. 10911201, "Methods and Apparatuses for Multi-TRP Transmission," issued February 2, 2021.
  • Technology Synopsis: The patent discloses a method for managing multi-TRP transmissions by having a UE receive TRP information that establishes a correspondence between TRPs and various resources (like Downlink RS resources or CORESET IDs). The UE then uses this TRP information to communicate with multiple TRPs and perform procedures like rate matching '201 Patent, abstract '201 Patent, col. 9:8-49
  • Asserted Claims: At least Claim 11 Compl. ¶111
  • Accused Features: Apple devices are alleged to receive TRP information via RRC messages (e.g., "ServingCellConfig") that define CORESET pools and rate matching patterns. The devices allegedly use this information to identify a particular TRP and perform rate matching on resources transmitted by that TRP Compl. ¶¶114-118

Multi-Patent Capsule: U.S. Patent No. 12,108,412

  • Patent Identification: U.S. Patent No. 12108412, "Method and Apparatus for Uplink Transmission," issued October 1, 2024.
  • Technology Synopsis: The invention addresses how a UE should handle overlapping uplink transmissions from multiple "configured grants." It describes a method where the UE receives multiple grant configurations, checks the status of timers associated with each grant's HARQ process, and selects one of the overlapping grants for transmission based on whether the respective timers are running '412 Patent, abstract
  • Asserted Claims: At least Claim 1 Compl. ¶132
  • Accused Features: The complaint alleges that Apple devices, when faced with overlapping configured grant PUSCH durations, implement a prioritization scheme to select a specific grant for transmission, as defined by the 3GPP standard Compl. ¶¶136-139

III. The Accused Instrumentality

Product Identification

The accused products are Apple-branded smartphones and tablets that are compatible with 5G networks, including all iPhones beginning with the iPhone 12 (introduced in 2020) and all cellular-enabled iPads since the 3rd generation iPad Pro (released in 2021) Compl. ¶24

Functionality and Market Context

The complaint alleges these devices incorporate 5G chipsets, either from Qualcomm (e.g., Snapdragon X55, X60, X65) or designed by Apple itself (e.g., C-1, C1X) Compl. ¶25 The core of the infringement allegation is that these devices fully support and practice the 3GPP 5G Standard to function on 5G networks Compl. ¶29 The complaint asserts that the specific patented functionalities related to QCL assumptions, LBT failure, multi-TRP communication, and configured grant handling are implemented in the accused products by virtue of their compliance with this standard (Compl. ¶¶35; Compl. ¶53; Compl. ¶72). The complaint provides a visual from the 3GPP standard showing a procedure for applying a QCL assumption when receiving an aperiodic CSI-RS, which is alleged to be performed by the accused devices Compl. p. 12

IV. Analysis of Infringement Allegations

'896 Patent Infringement Allegations

Claim Element (from Independent Claim 1) Alleged Infringing Functionality Complaint Citation Patent Citation
A user equipment... comprising... one or more non-transitory computer-readable media... at least one processor... The complaint identifies the iPhone 12 as an example, containing an A14 Bionic chip (processor) and non-transitory memory (e.g., 64GB-256GB capacity) that holds the operating system and software. ¶¶37, 39 col. 2:1-19
monitor at least one of a plurality of Control Resource Sets (CORESETs) configured for the UE within an active Bandwidth Part (BWP) of a serving cell in a time slot The accused products are alleged to monitor one or more CORESETs within the active BWP of a serving cell, as required by the 3GPP 5G standard for PDCCH reception. A visual from the standard illustrates this monitoring context. ¶40; Compl. p. 11 col. 6:8-12
apply a first Quasi Co-Location (QCL) assumption of a first CORESET of a set of one or more monitored CORESETs to receive an aperiodic Channel Status Information-Reference Signal (CSI-RS), The accused products are alleged to apply a QCL assumption from a specific CORESET to receive an aperiodic CSI-RS, particularly in fallback scenarios defined by the 3GPP standard. ¶41 col. 6:12-16
wherein the first CORESET is associated with a monitored search space configured with a lowest CORESET Identity (ID) among the set of one or more monitored CORESETs The complaint alleges this is performed by following the 3GPP rule stating that the UE applies the QCL assumption used for the CORESET associated with the monitored search space with the lowest controlResourceSetId. A visual from the standard highlights this rule. ¶41; Compl. p. 12 col. 6:16-27

'661 Patent Infringement Allegations

Claim Element (from Independent Claim 1) Alleged Infringing Functionality Complaint Citation Patent Citation
A user equipment... comprising... one or more non-transitory computer-readable media... at least one processor... The complaint identifies the iPhone 12, with its A14 Bionic chip and non-transitory memory, as satisfying this preamble. This allegation is repeated from the '896 patent analysis. ¶¶55, 57 col. 2:1-18
monitor at least one of a plurality of Control Resource Sets (CORESETs)... The accused products are alleged to monitor CORESETs as part of their standard 5G operation to receive control information. ¶58 col. 6:28-32
receive Downlink Control Information (DCI) scheduling a Downlink (DL) Reference Signal (RS), wherein a scheduling offset between an end of a last symbol of a Physical Downlink Control Channel (PDCCH) carrying the DCI and a beginning of a first symbol of a resource carrying the DL RS is less than a threshold The complaint alleges the accused products perform this function by complying with the 3GPP standard, which defines this exact condition based on a "UE reported threshold." A visual from the standard is provided to show this specific conditional logic. ¶59; Compl. p. 16 col. 6:33-44
apply a first Quasi Co-Location (QCL) assumption of a first CORESET of a set of one or more of the monitored at least one of a plurality of CORESETs to receive a DL-RS, wherein the first CORESET is associated with a monitored search space configured with a lowest CORESET Identity (ID) among the set of one or more of the monitored at least one of the plurality of CORESETs The accused products are alleged to apply this default QCL assumption from the CORESET with the lowest ID, as dictated by the 3GPP standard's fallback procedure for short-offset scheduling scenarios. A visual from the standard highlights this rule. ¶60; Compl. p. 17 col. 6:40-52

Identified Points of Contention

  • Scope Questions: The core of the dispute will likely revolve around whether compliance with the cited 3GPP standard provisions is sufficient to meet every limitation of the asserted claims. A key question will be whether the term "monitored CORESETs" as used in the patents encompasses the exact same set of CORESETs that an accused device considers under the rules of the 3GPP standard in all relevant operational scenarios.
  • Technical Questions: A potential point of contention is the evidentiary burden on the Plaintiff to prove that the accused devices actually execute the specific fallback logic claimed in the patents. The defense may argue that the 3GPP standards allow for non-infringing implementation alternatives or that the accused devices' behavior differs from the patent claims in subtle but material ways, raising the question of what evidence demonstrates that the "lowest CORESET Identity (ID)" rule is invariably applied as claimed.

V. Key Claim Terms for Construction

  • The Term: "monitored CORESETs" (from Claim 1 of the '896 and '661 patents)
  • Context and Importance: This term defines the pool of CORESETs from which the "first CORESET" (with the lowest ID) is selected. The construction of this term is critical because if "monitored" is interpreted narrowly, it might allow the accused device to select a CORESET from a smaller subset that does not include the one with the absolute lowest configured ID, potentially avoiding infringement. Practitioners may focus on this term to dispute the scope of the set of CORESETs relevant to the infringement analysis.
  • Intrinsic Evidence for Interpretation:
    • Evidence for a Broader Interpretation: The patent specification describes the UE monitoring multiple CORESETs configured for it "within an active BWP of a serving cell" ('896 Patent, col. 6:9-12), which may suggest the pool includes all such configured CORESETs.
    • Evidence for a Narrower Interpretation: The specification also discusses scenarios where a UE may not monitor all configured CORESETs due to overlapping monitoring occasions or other priority rules ('896 Patent, col. 7:1-10). This language may support an argument that "monitored" refers only to the CORESETs a UE actively attempts to decode in a specific time slot, not all that are configured.

VI. Other Allegations

  • Indirect Infringement: The complaint alleges that Apple induces infringement by providing its products along with advertisements, user manuals, and technical support that instruct and encourage users to connect to and use 5G networks in a way that practices the patented methods Compl. ¶¶44 Compl. ¶63 It further alleges contributory infringement, stating that the 5G chipsets in the accused products are material components specially made and adapted for infringing the patents and are not staple articles of commerce with substantial non-infringing uses Compl. ¶¶45 Compl. ¶64
  • Willful Infringement: The willfulness allegations are based on Apple's alleged pre-suit knowledge of the patents. The complaint claims Apple has known of the '896 patent since at least October 7, 2022, and of the parent patent family since at least May 22, 2022 Compl. ¶¶43 Compl. ¶62 This alleged knowledge, followed by continued infringement, is the basis for seeking enhanced damages Compl. ¶¶48 Compl. ¶67

VII. Analyst's Conclusion: Key Questions for the Case

  • A central issue will be one of infringement by standard: does compliance with the specific 3GPP standard sections cited in the complaint-which form the entirety of the infringement theory-conclusively establish that Apple's devices practice every limitation of the asserted claims? The court will need to determine if there is any material daylight between the patent's claim language and the standard's requirements or implementation options.
  • A key legal question will be one of claim scope and construction: how will the court construe the term "monitored CORESETs"? Whether this term is interpreted broadly to mean all CORESETs configured in a BWP, or narrowly to mean only those actively searched in a given time slot, will be critical in determining if Apple's implementation of the 3GPP standard's fallback rule infringes the claims.
  • A significant background issue will be the FRAND context: given that the patents are alleged to be standard-essential, the dispute over what constitutes a FRAND-compliant license offer will likely run parallel to the infringement and validity disputes, heavily influencing potential damages calculations and the ultimate resolution of the case.