New Radio IP LLC v. Kyocera Corp

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: New Radio IP LLC (Texas)
  • Defendant: Kyocera Corporation (Japan)
  • Plaintiff's Counsel: Ni, Wang & Massand, PLLC
• Case Identification: 2:26-cv-00275, E.D. Tex., 04/03/2026
• Venue Allegations: Plaintiff alleges venue is proper because Defendant is a foreign corporation and has committed acts of patent infringement in the district, including through the sale of accused products in retail stores located in Texas.
• Core Dispute: Plaintiff alleges that Defendant's 5G-compatible cellular devices infringe eight U.S. patents that Plaintiff claims are essential to the 5G telecommunications standard.
• Technical Context: The technology at issue involves core methods for managing device connectivity, mobility, and network access in fifth-generation (5G) cellular networks, a globally significant market for telecommunications.
• Key Procedural History: The complaint alleges that the asserted patents are essential to the 5G Standard and have been declared to the European Telecommunications Standards Institute (ETSI). Plaintiff also alleges that it provided Defendant with notice of the asserted patents and that Defendant failed to respond to offers for a license on Fair, Reasonable, and Non-Discriminatory (FRAND) terms, leading to additional counts for breach of contract related to ETSI membership obligations.

Case Timeline

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

U.S. Patent No. 10,602,429 - "Access Control in New Radio"

• Patent Identification: U.S. Patent No. 10,602,429, titled "Access Control in New Radio," issued March 24, 2020 (the "'429 Patent") Compl. ¶16

The Invention Explained

• Problem Addressed: The patent's background section describes a problem specific to 5G New Radio (NR) networks: legacy 4G access control schemes do not account for the new "RRC_INACTIVE" device state Compl. ¶1 '429 Patent, col. 1:49-54 This creates a risk of network overload, as the core network may underestimate traffic from these inactive devices, which can begin transmitting data without transitioning to a fully connected state '429 Patent, col. 2:4-26
• The Patented Solution: The invention discloses a multi-layered method for access control. A wireless device first reads a "first layer" of access control information (ACI) to determine if access control is active for its specific category (e.g., its RRC state) '429 Patent, abstract If the indicator is "ON," the device then reads a "second layer" of more detailed ACI to determine if its specific access attempt is permitted '429 Patent, abstract '429 Patent, Fig. 4 This two-step process conserves device power and network resources by avoiding the need to process detailed control parameters when access is unrestricted '429 Patent, col. 2:41-55
• Technical Importance: This layered approach enables more granular and dynamic control over network access, which is necessary to efficiently manage the diverse device types and traffic patterns inherent in 5G networks Compl. ¶¶1-2

Key Claims at a Glance

• The complaint asserts at least independent claim 1 of the '429 Patent Compl. ¶44
• The essential elements of independent claim 1, a method for a device in an RRC_INACTIVE state to perform a RAN Notification Area (RNA) update, include:
  • Initiating an RRC resumption procedure for the RNA update.
  • Acquiring an "access control parameter configuration" from system information block 1 (SIB1).
  • Initiating a random access procedure based on an "indicator" within that configuration.
  • Wherein, if the indicator is "OFF", the device does not need to apply the configuration and is allowed to initiate the random access procedure.
    '429 Patent, claim 1

U.S. Patent No. 10,897,708 - "Mobility Management for RRC_Inactive User Equipment"

• Patent Identification: U.S. Patent No. 10,897,708, titled "Mobility Management for RRC_Inactive User Equipment," issued January 19, 2021 (the "'708 Patent") Compl. ¶19

The Invention Explained

• Problem Addressed: The patent's background explains that while a device in the "RRC_INACTIVE" state can move within a defined RAN-based notification area (RNA) without notifying the network, problems arise when it moves outside this area '708 Patent, col. 2:1-6 The network loses track of the device's location, and its network context is not transferred, preventing the device from quickly resuming a connection and undermining the power-saving benefits of the inactive state '708 Patent, col. 2:6-16
• The Patented Solution: The patent proposes a UE-initiated RNA update procedure to manage mobility. When a device in the "RRC_INACTIVE" state moves from a first base station to a second one (e.g., crossing an RNA boundary), it initiates a procedure to receive an updated RNA '708 Patent, abstract This procedure ensures the network maintains awareness of the device's location, facilitating efficient paging and rapid connection resumption when needed '708 Patent, Fig. 4 '708 Patent, col. 2:17-25
• Technical Importance: This UE-initiated update mechanism provides a necessary mobility management framework for the "RRC_INACTIVE" state, which is critical for balancing power efficiency with reliable connectivity for mobile 5G devices Compl. ¶¶1-2

Key Claims at a Glance

• The complaint asserts at least independent claim 1 of the '708 Patent Compl. ¶49
• The essential elements of independent claim 1, a method for an RRC_INACTIVE device to perform an RNA update, include:
  • Receiving and storing a "first list of RAN area IDs" from a first cell.
  • Receiving a "cell ID" and a "RAN area ID" from a second cell.
  • Initiating an RNA update procedure upon determining the new RAN area ID is not in the stored first list.
  • Receiving and storing a "second list of RAN area IDs" from the second cell during the update.
  • Performing a random access procedure with the second cell, which includes sending an identifier of the first cell.
    '708 Patent, claim 1

Multi-Patent Capsule: U.S. Patent No. 10,911,943 - "Method and Apparatus for System Information Delivery"

• Patent Identification: U.S. Patent No. 10,911,943, titled "Method and Apparatus for System Information Delivery," issued February 2, 2021 Compl. ¶22
• Technology Synopsis: The patent addresses the inefficient broadcast of system information (SI). It proposes a method where SI is split into "minimum SI," containing an area ID and a value tag, and "other SI." A device only requests the detailed "other SI" if the new area ID is different from its stored ID or if the value tag indicates the information has changed, thereby conserving network resources and device power '943 Patent, abstract
• Asserted Claims: At least claim 1 Compl. ¶54
• Accused Features: The complaint alleges infringement by Accused Products that implement the 5G Standard's methods for acquiring system information Compl. ¶41 Compl. ¶42

Multi-Patent Capsule: U.S. Patent No. 11,026,121 - "Wireless Communication Method and System for Network Slicing"

• Patent Identification: U.S. Patent No. 11,026,121, titled "Wireless Communication Method and System for Network Slicing," issued June 1, 2021 Compl. ¶25
• Technology Synopsis: The patent relates to network slicing in 5G. It describes a method where a device sends a "network slice request" that includes "assistance information" to a base station. The base station uses this information to generate a response indicating whether the requested slice is supported, enabling efficient selection of virtual network slices tailored to specific applications '121 Patent, abstract
• Asserted Claims: At least claim 1 Compl. ¶59
• Accused Features: The complaint alleges infringement by Accused Products supporting the 5G Standard, which includes network slicing capabilities Compl. ¶41 Compl. ¶42

Multi-Patent Capsule: U.S. Patent No. 11,050,610 - "Reporting master node radio link failure"

• Patent Identification: U.S. Patent No. 11,050,610, titled "Reporting master node radio link failure," issued June 29, 2021 Compl. ¶28
• Technology Synopsis: The patent addresses failure recovery in dual-connectivity mode, where a device is connected to a master node (MN) and a secondary node (SN). The invention details a method for a device to detect a radio link failure with the MN and, if configured with a "split signaling radio bearer," transmit the failure report to the MN via the operational SN path, facilitating faster recovery '610 Patent, abstract
• Asserted Claims: At least claim 1 Compl. ¶64
• Accused Features: The complaint alleges infringement by Accused Products that implement dual-connectivity features of the 5G Standard Compl. ¶41 Compl. ¶42

Multi-Patent Capsule: U.S. Patent No. 11,184,909 - "Method and apparatus for handling overlapping PUSCH durations"

• Patent Identification: U.S. Patent No. 11,184,909, titled "Method and apparatus for handling overlapping PUSCH durations," issued November 23, 2021 Compl. ¶31
• Technology Synopsis: The invention provides a method for resolving scheduling conflicts where a device has two overlapping uplink transmission (PUSCH) durations. The device determines which PUSCH has priority and cancels the ongoing transmission of the lower-priority one, ensuring efficient and predictable use of uplink resources '909 Patent, abstract
• Asserted Claims: At least claim 8 Compl. ¶69
• Accused Features: The complaint alleges infringement by Accused Products that perform uplink data transmission according to the 5G Standard Compl. ¶41 Compl. ¶42

Multi-Patent Capsule: U.S. Patent No. 11,265,915 - "Methods and Devices for Adaptive Scheduling Request Procedure"

• Patent Identification: U.S. Patent No. 11,265,915, titled "Methods and Devices for Adaptive Scheduling Request Procedure," issued March 1, 2022 Compl. ¶34
• Technology Synopsis: The patent describes a procedure for a device to request network scheduling. It discloses a method where triggering a Scheduling Request (SR) for a first logical channel initiates a Random Access (RA) procedure. This action cancels the SR procedure for the first channel without canceling other pending SR procedures, improving efficiency in managing multiple simultaneous data flows '915 Patent, abstract
• Asserted Claims: At least claim 1 Compl. ¶74
• Accused Features: The complaint alleges infringement by Accused Products that use the 5G Standard's Medium Access Control (MAC) protocols for requesting network resources Compl. ¶41 Compl. ¶42

Multi-Patent Capsule: U.S. Patent No. 11,272,561 - "Method and apparatuses for beam failure recovery"

• Patent Identification: U.S. Patent No. 11,272,561, titled "Method and apparatuses for beam failure recovery," issued March 3, 2022 Compl. ¶37
• Technology Synopsis: This patent relates to beam failure recovery (BFR) in beam-forming networks. The invention specifies a method where a device transmits a MAC Control Element (CE) that includes a field identifying the cell where the failure occurred and a "presence indicator" field to signal whether the device is also suggesting a preferred new beam for recovery, thereby streamlining the recovery process '561 Patent, abstract
• Asserted Claims: At least claim 6 Compl. ¶79
• Accused Features: The complaint alleges infringement by Accused Products that implement beamforming functionalities as part of the 5G Standard Compl. ¶41 Compl. ¶42

III. The Accused Instrumentality

Product Identification

• The complaint identifies the accused instrumentalities as "Kyocera 5G Devices," providing a non-exclusive list that includes the DuraForce Ultra 5G, DuraSport 5G, and DuraForce PRO 3 models Compl. ¶41

Functionality and Market Context

• The accused products are cellular devices, such as smartphones, designed to operate on modern telecommunications networks by implementing and supporting the 5G Standard Compl. ¶41 The complaint alleges these devices support specifications including the 3GPP TS 38.321 5G New Radio Medium Access Control (MAC) protocol Compl. ¶42 Plaintiff positions these products within the context of increased global demand for 5G-compatible devices, which offer advanced performance such as greater bandwidth and higher speeds Compl. ¶2
  No probative visual evidence provided in complaint.

IV. Analysis of Infringement Allegations

The complaint alleges direct infringement of the asserted patents by asserting that the Accused Products practice the 5G Standard and that the patents-in-suit are essential to that standard Compl. ¶4 Compl. ¶¶41-42 For each count of infringement, the complaint references an attached exhibit (e.g., Exhibit 1 for the '429 Patent, Exhibit 2 for the '708 Patent) that purportedly demonstrates how the Accused Products meet each limitation of the asserted claim Compl. ¶44 Compl. ¶49 As these exhibits were not provided with the complaint, a detailed claim-chart analysis is not possible. The narrative infringement theory is that by implementing the 5G Standard, the Accused Products necessarily perform the methods claimed in the asserted patents.

Identified Points of Contention

• '429 Patent: An anticipated point of contention may be whether the 5G Standard mandates the exact two-layer logic of claim 1, where an "indicator" is first checked to determine if an "access control parameter configuration" should be applied. The dispute could focus on whether the standard allows for alternative, non-infringing methods of access control for devices in the RRC_INACTIVE state.
• '708 Patent: A central technical question will be whether the mobility procedures implemented in the Accused Products for RNA updates precisely match the multi-step sequence of claim 1. The infringement analysis may turn on how the accused functionality maps to claim limitations such as receiving and storing a "first list of RAN area IDs," subsequently receiving a "second list," and sending an identifier for the "first cell" to the "second cell."

V. Key Claim Terms for Construction

'429 Patent - The Term: "access control parameter configuration" (from claim 1)

• Context and Importance: The definition of this term is critical because it dictates the specific information a device must acquire from a network broadcast (SIB1) to practice the claimed method. A narrow construction could limit the claim to a specific set of parameters, whereas a broader construction could encompass a wider range of control information, potentially expanding the scope of infringement.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification describes the Access Control Information (ACI) structure as comprising "common parameters" and "specific-parameters" associated with various sub-categorizations, which may support a broader reading of the term '429 Patent, col. 10:12-14 '429 Patent, Fig. 4
  • Evidence for a Narrower Interpretation: The detailed description lists specific examples of access control parameters, such as "barring factor, backoff timer," which could be used to argue that the term is limited to such conventional types of parameters '429 Patent, col. 11:15-18

'708 Patent - The Term: "RAN area ID" (from claim 1)

• Context and Importance: This term is fundamental to the claimed mobility update procedure. Its construction will determine what type of location identifier used by the Accused Products falls within the claim's scope. The infringement analysis will depend on whether the specific identifiers used in the 5G standard for tracking areas meet the definition of a "RAN area ID" as defined by the patent.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification suggests flexibility, stating that a RAN area ID "may include at least one of the tracking area identity and RAN area code (RANAC)," which implies the term is not exclusively limited to these specific examples '708 Patent, col. 7:4-6
  • Evidence for a Narrower Interpretation: The claim repeatedly uses the phrase "list of RAN area IDs," which could be argued to require a specific data structure or format. A defendant may contend that its devices use a different structure that does not constitute a "list" as required by the claim '708 Patent, claim 1

VI. Other Allegations

• Indirect Infringement: The complaint alleges that Kyocera induces infringement by providing the Accused Products to customers, resellers, and end-users with the knowledge and intent that they will directly infringe Compl. ¶83 It also alleges contributory infringement, stating the products are especially made to infringe and are not staple articles of commerce suitable for substantial non-infringing use Compl. ¶84
• Willful Infringement: Plaintiff alleges it provided notice of the Asserted Patents to Defendant on or about August 5, 2024 Compl. ¶40 The prayer for relief seeks a declaration of willful infringement and enhanced damages, suggesting willfulness will be based on alleged knowledge of the patents at least from this date forward Prayer ¶ix Prayer ¶xv

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

1. Standard Essentiality and FRAND Compliance: A primary issue will be whether the asserted patents are, in fact, essential to implementing the 5G Standard. Tied to this is a contractual question: did the Plaintiff, as an alleged SEP holder, fulfill its ETSI-based obligation to offer a license on FRAND terms, and did the Defendant breach its reciprocal obligation as an implementer to negotiate in good faith?
2. Claim Scope versus Standard Implementation: A key technical question for the infringement analysis will be one of mapping: do the specific, multi-step methods recited in the asserted claims precisely correspond to mandatory portions of the 3GPP 5G standard? The case may turn on whether the standard allows for alternative, non-infringing implementations of features like access control and mobility management that the accused devices might employ.
3. Definitional Congruence: The resolution of the case will likely hinge on claim construction, specifically whether the technical terms used in the patent claims (e.g., "access control parameter configuration", "RAN area ID") can be construed to read on the corresponding functionalities and data structures defined and implemented in the 5G standard and the accused devices.