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EXHIBIT A

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EXHIBIT B

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IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE NOKIA CORPORATION and NOKIA, INC.,
Plaintiffs,

C. A. No. 05-I6-JJF
V.

INTERDIGITAL COMMUNICATIONS CORPORATION and INTERDIGITAL TECHNOLOGY CORPORATION, Defendants.

JURY TRIAL DEMANDED

INTERDIGITAL'S ANSWERS AND OBJECTIONS TO PLAINTIFFS' FIRST SET OF INTERROGATORIES Pursuant to Rule 33 ofthe FEDERAL. RUL.6s OF CIVIL PROCEDURE, Defendants InterDigital Communications Corp. and InterDigital Technology Corp,. (collectively "Defendant" or "InterDigital") serve their Answers and Objections to Plaintiffs Nokia Corp, and Nokia Inc. ("Nokia") First Set of Interrogatories and for same would show as follows: GLOBAL AND GENERAL OBJECTIONS I. InterDigital objects to the interrogatories to the extent that they seek discovery of information independently obtained by InterDigital's attorneys. In addition, InterDigital objects to Nokia's interrogatories to the extent that the requests or definitions seek information protected by the attorney-client privilege, the work product doctrine, and/or any other immunity or privilege.. InterDigital does not intend to disclose any such information. Any inadvertent disclosure or production of such information or documents shall not be deemed a waiver of the attorney-client privilege or the work product doctrine.

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2.

InterDigital objects to the interrogatories to the extent they call for expert

opinions, which is premature at this time.. InterDigital will provide such information and opinions as required in the Scheduling Order issued by the Court. 3. InterDigital objects to all of the discovery requests to the extent that they seek

production of information or- documents containing or embodying trade secrets, confidential business information, proprietary materials and/or other private matters protected under Federal Rule of Civil Procedure 26(c)(7) and/or Federal Rule of Evidence 501. Subject to the Local Rules of this Court, InterDigital objects to the production of such information, documents or things until such time as a Protective Order is entered by the Court. 4. Inter-Digital objects to Nokia's definition of the tern "you," "your,"

"InterDigital," "Plaintiff," and "Defendant" because each is overbroad and possibly includes persons for whose action and knowledge InterDigital could not have knowledge and whose documents InterDigital would not have access. For example, Nokia's definition would include all individuals who are "former officers, directors, agents, employees, attorneys, accountants, investigators, consultants, or other persons acting or purporting to act on them or their behalf." Additionally, InterDigital objects to this definition as it seeks information from individuals whose documents or knowledge are protected by the attorney-client privilege or attorney work product doctrine or consulting expert privilege. 1 5. InterDigital objects to Nokia's definition No. 2, "document," to the extent it seeks

to impose requirements in excess of those under the FEDERAL RULES OF CIVIL. PROCEDURE. 6. InterDigital objects to Nokia's definition No.. 3, "identify," as that term is used

and defined in an overbroad manner and exceeds the requirements of the FEDERAL. RULES OF
1 Nokia has incorporated into its First Set of Interrogatories to InterDigital its definitions from its First Set of Requests for Production to InterDigital.. InterDigital's objections here refer to the definitions and instructions as set forth and numbered in Nokia's First Set of Requests for Production to Inter-Digital.

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CIVIL PROCEDURE. Additionally, to the extent this definition purports to require information to be identified on a privilege log, it exceeds the legal requirements for, a privileged document log. 7.. InterDigital objects to Nokia's definition No. 14, "essential" on the grounds that it

is overbroad, vague, and ambiguous because it fails to define "technical grounds," "commercial grounds," "normal technical practice," "the state of the art," "the time of standardization," "methods associated with those products," and the standards and portions of the standard to which the term is directed. InterDigital further objects to this definition to the extent that it prematurely calls for expert testimony.. 8. InterDigital objects to Nokia's definition No. 15, "3G standard" on the grounds that the phrase "third-generation wireless telecommunication standard" is vague and the terms "WCDMA" and CDMA2000 are not defined.. 9.. InterDigital objects to Nokia's definition No. 17, "Nokia 3G Product," as it fails to identify the 3G products "designed, manufactured, distributed or sold by Nokia." Without such identification, this definition is vague and ambiguous, and fails to identify with sufficient particularity the Nokia 3G Products to which this definition refers. 10. InterDigital objects to Nokia's definition No. 19, "third-party 3G Product," as it

fails to identify the 3G products to which it refers. Without such identification, this definition is vague and ambiguous, and fails to identify with sufficient particularity the third party 3G products to which this definition refers.. 11. InterDigital objects to Nokia's definition No. 20, "declared InterDigital Patents,"

as it is overbroad, unduly burdensome and fails to identify with any particularity the InterDigital Patents to which the Plaintiffs' claims and the Defendants' defenses thereto apply. For purposes of answering these interrogatories, Inter-Digital shall respond to "declared InterDigital Patents" as

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meaning U.S. Patent Nos,. 5,093,840, 5,179,571, 5,228,056, 5,345,467, 5,631,921, 5,974,039, 6,771,632, 6,873,643, 6,956,889, 6,993,063, and RE38627. 12.. Inter-Digital objects to Nokia's definition No. 21 as it defines for purposes of Nokia's interrogatories for production the relevant scope as being "since five years before the earliest of the priority dates for the declared InterDigital Patents.." This definition is overbroad and fails to identify with any particularity to the relevant time period for which information are sought. 1.3. InterDigital objects to Nokia's First Set of Interrogatories as they purport to serve 14 interrogatories on InterDigital. These interrogatories contain unrelated and excessive subparts that should be counted as separate interrogatories for purposes of determining the allowed number of interrogatories. InterDigital will answer these interrogatories, but reserves its right to object to Nokia's attempt to exceed 50 interrogatories as provided in the Revised Rule 16 Scheduling Order. 14.. Counsel for InterDigital invites discussion with counsel for Nokia with regard to the objections asserted herein, with the expectation that discussions between counsel may eliminate or modify objections, or reduce burden on InterDigital, or otherwise result in a mutually satisfactory resolution of objections contained herein.

GLOBAL AND GENERAL OBJECTIONS TO INSTRUCTIONS L InterDigital objects to Nokia's Instruction No.. i as it exceeds the requirements under the FEDERAL RULES OF CIVIL. PROCEDURE for the identification of withheld privileged documents.
See

F.R.C.P. 26(b)(5). InterDigital will object to interrogatories and document

requests that call for privileged documents and identify any document withheld with sufficient information to enable the Court to determine whether the asserted privileges is satisfied.

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2.

InterDigital objects to Nokia's Instruction No. 3 as vague and ambiguous as it

seeks information regarding "a responsive document [that] once existed, but has been destroyed, or cannot be located." Additionally, this request is overbroad and unreasonably burdensome as it seeks to impose requirements on InterDigital that exceed the requirements of the FEDERAL. RULES OF CIVIL PROCEDURE. 3. InterDigital objects to Nokia's Instruction No. 5 as it is vague and ambiguous and

seeks InterDigital's determination of Nokia's subjective intent of its definitions and instructions. This sort of ambiguity lacks the certainty which is required for InterDigital to reasonably respond to Nokia's discovery.. InterDigital, subject to its objections, will use the definitions as set forth in Nokia's discovery requests. SPECIFIC OBJECTIONS AND RESPONSES TO NOKIA'S FIRST SET OF INTERROGATORIES InterDigital incorporates each of its Global and General Objections ("General Objections") and Objections to Instructions into each of the following answers. Subject to and without waiving any of the above General Objections, InterDigital submits the following specific objections and responses to Nokia's first set of interrogatories. INTERROGATORY NO. 1: Identify every patent that InterDigital has declared to any person or entity to be essential to a 3G standard (the "declared InterDigital patents"), indicating in claims charts the essential claims in the patent and the specific provision of every 3G standard, including WCDMA and/or CDMA2000, to which that claim is essential, with specific citations to standards documents, such as those made available by ETSI, 3GPP, and 3GPP2. ANSWER: OBJECTION. InterDigital objects to this interrogatory to the extent that it seeks

information that is protected by the attorney -client privilege, work product doctrine, or consulting expert privilege. InterDigital objects to this interrogatory as it is overbroad and

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unreasonably burdensome as it seeks to require InterDigital to "[i]dentify every patent that InterDigital has declared to any person or entity to be essential to a 3G standard (the "declared InterDigital patents").." InterDigital objects to the term "declared" as unfairly vague. InterDigital objects on the grounds that this interrogatory is not reasonably calculated to lead to the discovery of admissible evidence. InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court' s scheduling order.

Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, InterDigital states as follows: At least the following U.S. InterDigital patents are essential or potentially essential to a 3G standard.
· · · 0 · 5,093,840; 5,179,571; 5,228,056; 5,345,467; 5,631,921 5,974,039; · a · 6,771,632; 6,873,643; 6,956,889;

· ·

6,993,063; and RE38627.

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To the extent that this interrogatory seeks specific provisions of the WCDMA and specific citations to standards documents, InterDigital, pursuant to FED. R. Civ. P. 33(d) further, states that the answer to this interrogatory may be derived or ascertained from the business records of InterDigital or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the InterDigital, including the following documents: · 3GPP TS 21.101 Technical Specifications and Technical Reports for a UTRAN based 3GPP system + 3GPP TR 21.900 Technical Specification Group working methods · 3GPP TR 21.902 Evolution of 3GPP system · 3GPP TR 21.905 Vocabulary for 3GPP Specifications · 3GPP TS 22.001 Principles of circuit telecommunication services supported by a Public Land Mobile Network (PLMN) · 3GPP TS 23.002 Network architecture · 3GPP TS 23101 General UMTS Architecture · 3GPP TS 23107 Quality of Service (QoS) concept and architecture · .3GPP TS 23.110 UMTS Access Stratum Services and Functions · 3GPP TS 23.221 Architectural requirements · 3GPP TS 25.101 User Equipment (UE) radio transmission and reception (FDD) · 3GPP TS 25.102 User Equipment (UE) radio transmission and reception (TDD) · 3GPP TS 25.104 Base Station (BS) radio transmission and reception (FDD) · 3GPP TS 25.105 Base Station (BS) radio transmission and reception (TDD) 0 3GPP TS 25.123 Requirements for support of radio resource management (TDD)

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· 3GPP TS 25. 133 Requirements for- support of radio resource management (FDD) · 3GPP TS 25. 141 Base Station (BS) conformance testing (FDD) · 3GPP TS 25. 142 Base Station (BS) conformance testing (TDD) · 3GPP TS 25. 201 Physical layer - general description · 3GPP TS 25. 211 Physical channels and mapping of transport channels onto physical channels (FDD) · 3GPP TS 25.212 Multiplexing and channel coding (FDD) · 3GPP TS 25. 213 Spreading and modulation (FDD) 3GPP TS 25. 214 Physical layer procedures (FDD) 3GPP TS 25. 215 Physical layer; Measurements (FDD)
· 3GPP TS 25. 221 Physical channels and mapping of transport channels onto physical channels (TDD)

· 3GPP TS 25 ,222 Multiplexing and channel coding (TDD) · 3GPP TS 25, 223 Spreading and modulation (TDD) · 3GPP TS 25 .224 Physical layer procedures (TDD) · 3GPP TS 25,225 Physical layer; Measurements (TDD) · 3GPP TS 25 .301 Radio interface protocol architecture · 3GPP TS 25.302 Services provided by the physical layer
· 3GPP TS 25. 303 Interlayer procedures in Connected Mode

· .3GPP TS 25, 304 User Equipment (UE) procedures in idle mode and procedures for cell reselection in connected mode
· 3GPP TS 25 .305 User Equipment (UE) positioning in Universal Terrestrial Radio Access Network (UTRAN); Stage 2

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· 3GPP TS 25.306 UE Radio Access capabilities definition · 3GPP TS 25.321 Medium Access Control (MAC) protocol specification · 3GPP TS 25.322 Radio Link Control (RLC) protocol specification · 3GPP TS 25.331 Radio Resource Control (RRC) protocol specification · 3GPP TS 25.401 UTRAN overall description · 3GPP TS 25.402 Synchronization in UTRAN Stage 2 · 3GPP TS 25.410 UTRAN Iu interface: General aspects and principles · 3GPP TS 25.411 UTRAN Iu interface layer 1 · 3GPP TS 25.412 UTRAN lu interface signaling transport · 3GPP TS 25.413 UTRAN Iu interface Radio Access Network Application Part (RANAP) signaling · 3GPP TS 25.414 UTRAN lu interface data transport & transport signaling · 3GPP TS 25.415 UTRAN lu interface user plane protocols · 3GPP TS 25.420 UTRAN Iur Interface: General Aspects and Principles · 3GPP TS 25.421 UTRAN lur interface Layer, 1 · 3GPP TS 25.422 UTRAN lur interface signaling transport · 3GPP TS 25.42.3 UTRAN Iur interface Radio Network Subsystem Application Part (RNSAP) signaling · 3GPP TS 25.424 UTRAN Iur interface data transport & transport signaling for Common Transport Channel data streams · 3GPP TS 25.425 UTRAN Iur interface user plane protocols for Common Transport Channel data streams

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· 3GPP TS 25.426 UTRAN Iur and Iub interface data transport & transport signaling for DCH data streams · 3GPP TS 25.427 UTRAN Iur/Iub interface user plane protocol for- DCH data streams · 3GPP TS 25.430 UTRAN Iub Interface: general aspects and principles 3GPP TS 25.431 UTRAN Iub interface Layer- I · 3GPP TS 25.432 UTRAN Iub interface: signaling transport · 3GPP TS 25.433 UTRAN lub interface Node B Application Part (NBAP) signaling · 3GPP TS 25,434 UTRAN lub interface data transport and transport signaling Common Transport Channel data streams · 30PP TS 25.435 UTRAN Iub interface user plane protocols for Common Transport Channel data streams · 3GPP TS 25.442 UTRAN implementation-specific 4&M transport · 3GPP TS 25.450 UTRAN Iupc interface general aspects and principles · 3GPP TS 25.451 UTRAN Iupc interface layer 1 · 3GPP TS 25.452 UTRAN Iupc interface: signaling transport · 3GPP TS 25.453 UTRAN Iupc interface Positioning Calculation Application Part (PCAP) signaling · 3GPP TS 25.460 UTRAN Want interface: General aspects and principles · 3GPP TS 25.461 UTRAN Want interface: Layer I · 3GPP TS 25.462 UTRAN luant interface: Signaling transport · 3GPP TS 25.463 UTRAN luant interface: Remote Electrical Tilting (RET) antennas Application Part (RETAP) signaling · 3GPP TR 25.902 Iub/Iur· congestion control

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· 3GPP TR 25. 921 Guidelines and principles for protocol description and error handling · 3GPP TR 25. 922 Radio resource management strategies · 3GPP TR 25.931 UTRAN functions, examples on signaling procedures · 3GPP TR 25. 942 Radio Frequency (RF) system scenarios · 3GPP TR 25. 943 Deployment aspects · 3GPP TR 25.951 Base Station (BS) classification (FDD) · 3GPP TS 34.108 Common test environments for User Equipment (UE); Conformance testing · 3GPP TS 34. 109 Terminal logical test interface; Special conformance testing functions · 3GPP TS 34. 121 Terminal Conformance Specification, Radio Transmission and Reception (FDD) · 3GPP TS 34. 122 Terminal conformance specification, Radio transmission and reception (TDD) · 3GPP TS 34. 123-1 User Equipment (UE) conformance specification; Part 1: Protocol conformance specification · 30PP TS 34. 123-2 User Equipment (UE) conformance specification; Part 2: Implementation conformance statement (ICS) specification · 3GPP TS 34. 123-3 User Equipment (UE) conformance specification; Part.3: Abstract test suites (ATSs) To the extent that this interrogatory seeks specific provisions of the cdma2000 and/or EVD4 standards and specific citations to standards documents, InterDigital, pursuant to FED. R,

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Civ. P.. 33( d), further states that the answer to this interrogatory may be derived or ascertained from the business records of InterDigital or, from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the InterDigital, including the following documents: · TIA/EIA/IS-2000.1-C, Introduction to cdma2000 Spread Spectrum Systems (May

2002)
· TIA/EIA/IS-2000.2-C, Physical Layer Standard for cdma2000 Spread Spectrum Systems (May 2002) · TIA/EIA/IS-2000.3-C, Medium Access Control (MAC) Standard for cdma2000 Spread Spectrum Systems (May 2002) · TIA/EIA/IS-2000.4-C, Signaling Link Access Control (LAC) Standard for cdma2000 Spread Spectrum Systems (May 2002) · TIA/EIA/IS-2000 .5-C, Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum Systems (May 2002) · TIA/EIA/IS-2000.5-C, Analog Signaling Standard for cdma2000 Spread Spectrum Systems (May 2002) · TIA/EIA/IS-856, cdma2000 High Rate Packet Data Air Interface Specification (November 2000) · TIA/EIA/IS-856- 1, cdma2000 High Rate Packet Data Air Interface Specification (.January 2002) · TIA/EIA/IS-856-1 , cdma2000 Wireless IP Network Standard (August 2003) · TIA/EIA/IS-707, Data Service Options for Wideband Spread Spectrum Systems (February 1998)

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· TIA/EIA/IS-707-A, Data Service Options for Wideband Spread Spectrum Systems (April 1999) · TIA/EIA/IS-707-A- 1, Data Services Options for Spread Spectrum Systems - Radio Link Protocol Type 3 Addendum No. 1 (December 1999) · TIA/EIA/IS-707-A-2, Data Service Options for Spread Spectrum Systems Addendum 2 (March 2001) · TIA-870- 1 [E] Test Data Service Option (TDSO) for cdma20009) Spread Spectrum Systems - Addendum 1 [E] (January 2004) · TIA/EIA/IS-870 Test Data Service Option (TDSO) for cdma2000 a Spread Spectrum Systems (April 2001) · TIA/EIA/IS-890 Test Application Specification (TAS) for High Rate Packet Data Air Interface (July 2001) · TIA-898 Signaling Conformance Tests for cdma2000 © Spread Spectrum Systems (December 2001) · TIA-919 Signaling Conformance Standard for cdma2000 0 High Rate Packet Data Air, Interface (May 2002) (Superseded by TIA-919-A-2006) · TIA-918 Signaling Conformance Standard for cdma2000 ® Wireless IP Networks (May 2002) · TIA-1013 Mobile Equipment (ME) Conformance Testing for cdma20000 Spread Spectrum Standards (December 2003) · TIA-1035 Signaling Conformance Test Specification for edma2000 Air Interface (January 2005)

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· TIA-1036 Interoperability Test Specification for cdrna2000 Air Interface (January 2005) · TIA-870-A Test Data Service Option (TDSO) for cdma2000 0 Spread Spectrum Systems - Revision A (March 2005) · TIA-1044 Signaling Conformance Test Specification for Over-the-Air Service Provisioning (TIA-1044-2006) (February 2006) To the extent that this interrogatory requests claim charts and other confidential information, InterDigital states that it will supplement its response after the parties enter a mutually agreeable protective order. InterDigital's investigation and analysis is ongoing. InterDigital reserves the right to supplement the above identified patents, claims, charts, and standard references.. INTERROGATORY NO. 2: Identify every patent that InterDigital currently contends to be essential to a 3G standard, indicating in claims charts the essential claims in the patent and the specific provision of every 3G standard, including WCDMA and/or CDMA2000, to which that claim is essential, with specific citations to standards documents, such as those made available by ETSI, 3GPP, and 3GPP2. ANSWER: OBJECTION_ InterDigital objects to this interrogatory to the extent that it seeks information that is protected by the attorney-client privilege, work product doctrine, or consulting expert privilege. InterDigital objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks to require InterDigital to "identify every patent that InterDigital currently contends to be essential to a 3G standard ...." and to indicate "in claims charts the essential claims in the patent and the specific provision of every 3G standard, including WCDMA and/or CDMA2000, to which that claim is essential, with specific citations to standards documents, such as those made available by ETSI, 3GPP, and 3GPP2." InterDigital objects on the grounds that this interrogatory is not reasonably calculated to lead to the discovery

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of admissible evidence.. InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court's scheduling order.. Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, InterDigital incorporates by reference its answer to Interrogatory No. 1. INTERROGATORY NO. 3: If InterDigital no longer contends that a claim of a declared InterDigital patent is essential to the portions of the 3G standards for which that claim was previously declared essential, explain why InterDigital's position on the essentiality of that claim has changed.. ANSWER: OBJECTION.. InterDigital objects to this interrogatory to the extent that it seeks information that is protected by the attorney-client privilege, work product doctrine, or consulting expert privilege. InterDigital further objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks to require InterDigital to "[i]dentify every patent that InterDigitaI has declared to any person or entity to be essential to a 3G standard (the "declared InterDigital patents")." InterDigital objects to the term "declared" as unfairly vague.. InterDigital objects to this request on the grounds that it is not reasonably calculated to lead to the discovery of admissible evidence. InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court's scheduling order. Subject to these objections, InterDigital's Global Objections, and the Agreed Protective Order, InterDigital states that each of the patents identified in Interrogatory No.. I remain essential or potentially essential to practice a 3G standard. INTERROGATORY NO. 4: Describe with specificity InterDigital's investigation, evaluation, and/or analysis related to InterDigital's contention that any of the claims of the declared InterDigital patents are essential to practice a 3G standard, as addressed in Interrogatory No. 1, including but not limited to all facts and documents (by production numbers), and materials that relate to Inter-Digital's

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construction(s) of "essential" for such 3G standard(s), and identify all persons with knowledge of any of those facts. ANSWER: OBJECTION.. InterDigital objects to this interrogatory to the extent that it seeks

information that is protected by the attorney-client privilege, work product doctrine, or consulting expert privilege, InterDigital objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks to require InterDigital to "[i]dentify every patent that InterDigital has declared to any person or entity to be essential to a 3G standard (the "declared InterDigital patents")." InterDigital further objects to the term "declared" as unfairly vague. InterDigital objects to this request on the grounds that it is not reasonably calculated to lead to the discovery of admissible evidence. InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court's scheduling order. Subject to these objections, InterDigital's Global Objections, and the Agreed Protective Order, InterDigital incorporates by reference its answer to Interrogatory No. 1. InterDigital further states that in selecting patents declared, InterDigital identifies what it believes to be the disclosure in a patent application for comparison with a Standard.. because claims in an application and a standard's requirements are often not crystallized. In determining whether a disclosure in a patent application maps to a defined or, potential requirement of a standard, InterDigital engineers knowledgeable about the defined or potential requirements of a standard review the disclosure and defined or potential requirement of the standard. The engineers rely on their personal knowledge and education in forming an opinion as to whether a patent applies or potentially applies to a standard. Where there is an element of doubt, InterDigital's practice is to err on the side of caution and notify the patent as potentially This is

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essential. Where InterDigital determines that it should identify a patent as potentially essential, InterDigital identifies the entire patent family.. To the extent that this interrogatory seeks information regarding the investigation, evaluation, and/or analysis related to InterDigital's contention that any of the claims of the declared InterDigital patents are essential to practice a 3G standard, InterDigital, pursuant to FED. R. Ov. P. 33(d), states that the answer to this interrogatory may be derived or ascertained from the business records of InterDigital or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the InterDigital, including the following documents: · U.S. Patent No.. 5,093,840 and its prosecution history; · U.S. Patent No. 5,179,571 and its prosecution history; · U.S. Patent No, 5,228,056 and its prosecution history; · U.S. Patent No. 5,345,467 and its prosecution history; · U.S. Patent No.. 5,631,921 and its prosecution history; · U.S. Patent No. 5,974,039 and its prosecution history; · U.S. Patent No, 6,771,632 and its prosecution history; · U.S. Patent No. 6,873,643 and its prosecution history; · U.S. Patent No,. 6,956,889 and its prosecution history; · U.S.. Patent No. 6,993,063 and its prosecution history; and · U.S. Reissue Patent No. 38,627 and its prosecution history,. InterDigital fiurther states that to the extent that this interrogatory seeks facts and documents, and materials that relate to InterDigital's construction(s) of "essential" for such 3G standard(s), Inter-Digital identifies the following documents:

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· www.etsi.org · www.etsi.org/legal/documents/ETSI_IPRPolicy.pdf' · www.etsi.org/legal/documents/ETSI_Guide_on_IPRs.pdf · www.etsi.org/legal/IPR-database/FAQ_IPR-Policy.htm · webapp..etsi.org/IPR/home.asp The following person have knowledge of some of the above facts: · Donald M. Boles · Kimberly Chotkowski · Fatih Ozluturk · Mario A. Obeidat INTERROGATORY NO. 5: ANSWER: Separately for each claim of the declared InterDigital patents that InterDigital has alleged to be essential to a 3G standard, state how you construe each element of that claim; the scope of equivalents under the doctrine of equivalents to which you contend the claim and/or element is essential; and identify all intrinsic and all extrinsic evidence upon which you rely in support of your, construction. ANSWER: OBJECTION. InterDigital objects to this interrogatory to the extent that it seeks

information that is protected by the attorney -client privilege, work product doctrine, or consulting expert privilege. InterDigital objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks to require InterDigital to "[i]dentify every patent that InterDigital has declared to any person or entity to be essential to a 3G standard (the "declared InterDigital patents").." InterDigital further objects to the term "declared" as unfairly vague. InterDigital objects to this request on the grounds that it is not reasonably calculated to lead to the discovery of admissible evidence. InterDigitaI objects to this request to the extent that it call

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for expert opinion testimony prior to such time as it may required by the Court's scheduling order. Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, Inter-Digital states as follows: The vast majority of the elements of the claims of the patents identified in response to Interrogatory No. 1 carry their plain and ordinary meaning as would be ascribed by a person of ordinary skill in the art. To the extent that InterDigital believes that any terms merit clarification, InterDigital will supplement its answer following entry of a mutually agreeable protective order. INTERROGATORY NO. 6:
Describe in detail any facts relating to InterDigital's knowledge or belief' of the truth or falsity of InterDigital's statements that the declared InterDigital patents are essential to some portion of some 3G standard, including but not limited to (1) any statements by any person or entity related to InterDigital or third parties that some or all of the claims of the declared InterDigital patents may not be essential, or may be invalid, or that any processes InterDigital uses to determine essentiality may be deficient, (2) any indication by any person or entity related to InterDigital at any time whatsoever - that InterDigital should exaggerate or otherwise misrepresent the scope of validity of any patents currently or formerly owned by InterDigital, and (3) any InterDigital business plans - at any time whatsoever - regarding exaggerating or otherwise misrepresenting the scope or validity of any patents owned by InterDigital.

ANSWER:
OBJECTION. InterDigital objects to this interrogatory to the extent that it seeks

information that is protected by the attorney-client privilege, work product doctrine, or consulting expert privilege. InterDigital further objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks to require InterDigital to "[i]dentify every patent that InterDigital has declared to any person or entity to be essential to a 3G standard (the "declared InterDigital patents")." InterDigital objects to the term "declared" as unfairly vague.. InterDigital objects to this request on the grounds that it is not reasonably calculated to lead to the discovery of admissible evidence. InterDigital objects to this request to the extent that it call

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for expert opinion testimony prior to such time as it may required by the Court 's scheduling
order..

Subject to these objections, InterDigital's Global Objections, and the Agreed Protective Order, InterDigital incorporates by reference its answer to Interrogatory Nos. 1 and 4. InterDigital further states that others have publicly and/or privately recognized that InterDigital holds essential or potentially essential patents. InterDigital, pursuant to FED. R. C3v. P. 33(d), further states that the answer to this interrogatory may be derived or ascertained from the business records of InterDigital or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the InterDigital, including the following documents: David J. Goodman & Robert A. Myers, 3G Cellular Standards and Patents, IEEE WirelessCom 2005, June 13, 2005
International Telecommunications Standards User Group, Minutes Of Third Meeting Of A Umts Working Party Ad Hoc Group

INTERROGATORY NO. 7: Identify all novelty, validity or invalidity, infringement or noninfringement, enforceability or unenforceability, prior art investigations, studies, legal opinions, or searches, written or oral, that have been conducted, prepared, or requested by or on behalf of InterDigital, or that are otherwise known to InterDigital, with respect to the declared InterDigital patents, 3G standards or the Nokia 3G products, and summarize the conclusions and the reason(s) therefor. ANSWER:
OBJECTION. InterDigital objects to this interrogatory to the extent that it seeks

information that is protected by the attorney -client privilege, work product doctrine, or consulting expert privilege.. InterDigital objects to the term "declared" as unfairly vague. InterDigital objects to this request as it is overbroad, unreasonably burdensome and not reasonably calculated to lead to the discovery of admissible evidence as it refers to

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"investigations, studies, legal opinions, or searches, written or oral, that have been conducted, prepared, or requested by or on behalf of InterDigital, or that are otherwise known to InterDigital, with respect to the declared InterDigital patents, 3G standards or the Nokia 3G products, and summarize the conclusions and the reason(s) therefor." InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court's scheduling order. Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, InterDigital, pursuant to Fen., R. CIV. P. 33 (d), states that the answer to this interrogatory may be derived or ascertained from the business records of InterDigital or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the InterDigital, including the following documents: · U.S. Patent No. 5,093,840 and its prosecution history and foreign prosecution history; · U.S. Patent No.. 5,179,571 and its prosecution history and foreign prosecution history; · U.S. Patent No. 5,228,056 and its prosecution history and foreign prosecution history; · U.S. Patent No. 5,345,467 and its prosecution history and foreign prosecution history; · U.S. Patent No. 5,631,921 and its prosecution history and foreign prosecution history; · U.S. Patent No. 5,974,039 and its prosecution history and foreign prosecution history; · U.S. Patent No. 6,771,632 and its prosecution history and foreign prosecution history; · U.S. Patent No. 6,873,643 and its prosecution history and foreign prosecution history; · U.S. Patent No.. 6,956,889 and its prosecution history and foreign prosecution history; · U.S. Patent No. 6,993,063 and its prosecution history and foreign prosecution history;
and

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· U.S.. Reissue Patent No. 38,627 and its prosecution history and foreign prosecution history.. INTERROGATORY NO. 8: Describe with specificity the conception and reduction to practice of each claimed invention in the declared InterDigital patents, including each inventor's role and the identity of all documents relating to the foregoing. ANSWER: OBJECTION. InterDigital objects to this interrogatory as it seeks information that is protected by the attorney-client privilege and/or work product doctrine. InterDigital objects to the term "declared" as unfairly vague. Additionally, InterDigital objects to this request as it is overbroad, unreasonably burdensome, and not reasonably calculated to lead to the discovery of admissible evidence. InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court's scheduling order. Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, InterDigital, pursuant to FELL. R. Civ. P. 33(d), states as to U.S. Patent Nos. 6,771,632, 6,873,643, and 6,993,063 that the answer to this interrogatory may be derived or ascertained at least in part from the business records of Nokia or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the less for Nokia as for the InterDigital. InterDigital's Global Objections and the Agreed Protective Order, InterDigital, pursuant to FED. R. Civ. P. 33(d), states as to U.S. Patent Nos. 5,093,840, 5,179,571, 5,228,056, 5,345,467, 5,631,921, 5,974,039, 6,771,632, 6,873,643, 6,956,889, 6,993,063, and RE38627 that the answer- to this interrogatory may be derived or ascertained from the business records of InterDigital or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the Interl.7igital.

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INTERROGATORY NO. 9: Describe the applicability of each of the secondary considerations of non-obviousness as set forth in graham v. John Deere, 383 U.S. 1 (1966), and its progeny to each claimed invention in the declared InterDigital patents. ANSWER: OBJECTION. InterDigital objects to this interrogatory as it seeks information that is protected by the attorney-client privilege and/or work product doctrine.. InterDigital objects to the term "declared" and "its progeny" as unfairly vague. Additionally, InterDigital objects to this request as it is overbroad, unreasonably burdensome, and not reasonably calculated to lead to the discovery of admissible evidence. InterDigital objects to this request to the extent that it call for expert opinion testimony prior to such time as it may required by the Court's scheduling order. Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, InterDigital states that the commercial success of products complying with 3G standards and practicing the claimed inventions of the declared patents, adoption of the claimed inventions into the 3G Standards, and the recognition by others of the essentiality of the declared patents support secondary considerations of non-obviousness INTERROGATORY NO. 10: For each of the patents that InterDigital has declared to some entity to be essential to some wireless telecommunications standard, including the declared InterDigital patents and patents InterDigital has declared to be essential to 2G standards, describe the licensing history, including but not limited to all licenses and attempts by InterDigital to license the patents and the terms and conditions of such license or potential licenses, and/or the outcome of each attempt.. ANSWER: InterDigital objects to this interrogatory as it is overbroad, unreasonably burdensome, and not reasonably calculated to lead to the discovery of admissible evidence as it seeks to require InterDigital to describe the licensing history of all its patents. InterDigital further objects to the term "declared" as unfairly vague. InterDigital objects to this request to the extent that it seeks

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information protected by the attorney-client privilege and/or the work product doctrine., InterDigital objects to this interrogatory as vague and ambiguous as it refers to "patents that InterDigital has declared to some entity to be essential to some wireless telecommunications standard." Subject to these objections, InterDigital's Global Objections and the Agreed Protective Order, InterDigital states it has entered license agreements with the following companies; · Alcatel Espana · American Telephone and Telegraph Company · Arima Communications Corporation · Danger Inc. · Denso Corporation · Ericsson Inc. · High Tech Computer (HTC) · Hitachi Ltd. · Hop-On Wireless, Inc. · Hughes Network Systems Inc. · Infrneon Technologies AG · Iwatsu America Inc. · Japan Radio · Kokusai Electric Co. Ltd. · Kyocera Corporation · LG Electronics Inc. · Matsushita Communication Industrial Co. Ltd.

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· Mitsubishi Electric Corporation · Nakayo Telecommunications, Inc. · NEC Corporation · Nokia Corporation · Oki Electric Industry Co. Ltd. · Option NV · Pacific Communication Sciences, Inc. · Panasonic Corporation of North America · Qualcomm Incorporated · Quanta Computer- Inc. · Research In Motion Limited · Robert Bosch GmbH · Samsung Electronics Co. Ltd. · Sanyo Electric Co. Ltd. · Sharp Corporation · Shintom Company Ltd. · Siemens Aktiengesellschaft · Sierra Wireless, Inc. · Sony Ericsson Mobile Communications AB · Telefonaktiebolaget LM Ericsson · Toshiba Corporation · UbiNetics Ltd.

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InterDigital further states, pursuant to FED. R. CIV. P. 33(d), that the answer to this interrogatory may be derived or ascertained from the business records of InterDigital or from an examination, audit or inspection of such business records, and the burden of deriving or ascertaining the answer is substantially the same for Nokia as for the InterDigital, specifically InterDigital' s press releases and filings with the SEC describing the agreements with the above identified companies. INTERROGATORY NO. 11: For each of the declared InterDigital patents, describe in detail any accusations made by any person or entity related to Inter-Digital of patent infringement to any third party regarding that patent, whether litigation ensued, and, if such an accusation was made or' if litigation ensued, explain the outcome and disposition, including but not limited to where suit was filed, the parties, involved, the case caption, and the terms of any settlement or judgment. ANSWER: OBJECTION. InterDigital objects to the term "declared" as unfairly vague. Inter-Digital objects to this interrogatory as vague, ambiguous, and not reasonably calculated to lead to the discovery of admissible evidence.. InterDigital objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks InterDigital to describe accusations made by "any person or entity" to "any third party" regarding InterDigital's 3G patents. Subject to these objections, Inter-Digital's Global Objections, and the Agreed Protective Order, InterDigital responds that · U.S. Patent No. 5,093,840 was at issue in Oualconun Inc. v, InterDigital Communications Corp. et al., in the United States District Court for the Southern District of California (Civil Action No.. 93-612G(POR)). · U.S. Patent Nos. 5,179,571 and 5,228,056 were at issue in Inlet-Digital Technology Corp v. Oki America Inc. et al., in the United States District Court for the Eastern District of Pennsylvania (Civil Action No. 93-CV-2004 (Bartle, J.))

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INTERROGATORY NO. 12: Describe in detail any Lanham Act, false advertising, or similar claim that has been brought against InterDigital, including but not limited to the identities of the parties, the jurisdiction, the case number, and the resolution (if any). ANSWER: OBJECTION. InterDigital objects to this interrogatory as it seeks information that is not reasonably calculated to lead to the discovery of admissible evidence. Additionally, InterDigital objects to this interrogatory as vague and ambiguous as it refers to "similar claim." Subject to these objections, InterDigital's Global Objections, and the Agreed Protective Order, InterDigital responds that Ericsson GE Mobile Communications, Inc, and Ericsson Radio Systems, Inc. (collectively "Ericsson") filed a lawsuit against InterDigital in the United States District Court for the Northern District of Texas (Civil Action No. 3-93CVI809-H (N.D.Tx.) asserting Lanharn Act violations similar to those of Nokia. The district court awarded InterDigital summary.judgment on Ericsson's Lanham Act claim and dismissed same. INTERROGATORY NO. 13: Identify each person whom InterDigital expects to call as a witness at trial, including whether the witness will testify as a fact or an expert witness, the subject matter on which each witness is expected to testify, and each document upon which each witness will rely or testify about at trial. ANSWER: OBJECTION. InterDigital objects to this interrogatory as it seeks information protected by the attorney-client privilege, work product doctrine, or consulting expert privilege.. Additionally, InterDigital objects to this interrogatory as it is overbroad and unreasonably burdensome as it seeks to require InterDigital to identify "each document upon which each witness will rely or testify about at trial." To the extent this interrogatory seeks the identity of and information regarding experts it is premature and InterDigital will respond to Nokia's Rule 26 request for disclosure regarding experts pursuant to the Revised Rule 16 Scheduling Order.

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INTERROGATORY NO. 14: Identify each source of information that you considered in preparing your responses to these interrogatories, including but not limited to all persons who provided information that you considered in preparing your responses. ANSWER: OBJECTION, InterDigital objects to this interrogatory as it seeks information that is protected by the attorney-client privilege, work product doctrine, and/or consulting expert privilege. Subject to these objections, InterDigital's Global Objections, and the Agreed Protective Order, InterDigital incorporates by reference its answers to interrogatory nos.. 1-13 and the documents identified therein.. OF COUNSEL: D. Dudley Oldham Linda L. Addison Richard S.. Zembek Fulbright & Jaworski L.L..P.. 1301 McKinney, Suite 5100 Houston, Texas 77010-3095 Tel: (713) 651-5151 Fax: (713) 651-5246 [email protected] laddison cr fulhrilit.com rzembek (r,fiilbright.com Dan D.. Davison Fulbright & .Iaworski L.L.P. 2200 Ross Avenue, Suite 2800 Dallas, Texas 75201-2784 Tel: (214) 855-8000
Fax: (214) 855-8200 ddavison(cbfiilbrieht.com

POTTER ANDERSON & CORROON LLP

By: Is/ David E. Moore Richard L. Horwitz (#2246) David E. Moore (#.'983) Hercules Plaza, 6th Floor 1313 N. Market Street Wilmington, Delaware 19801 Tel: (302) 984-6000 rhorwitz(c,potteranderson.corn [email protected] Attorneys for Defendants, INTERDIGITAL COMMUNICATIONS CORPORATION ar7d INTERDIGITAL TECHNOLOGY CORPORATION

Dated: March 30, 2006 734386 / 28840

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CERTIFICATE OF SERVICE I, David E. Moore, hereby certify that on May 30, 2006, a true and correct copy of the within document was caused to be served on the following counsel of record, in the manner indicated below:

VIA. HAND DELIVERY Jack B. Blumenfeld Julia Heaney Morris, Nichols, Arsht & Tunnell 1201 N.. Market Street P. O. Box 1347 Wilmington, DE 19899-1347

VIA ELECTRONIC MAIL Peter Kontio Patrick J. Flinn Gardner S. Culpepper Keith E.. Broyles Randall L. Allen Lance Lawson Alston & Bird LLP 1201 West Peachtree Street Atlanta, GA 30309-3424 pkontioa,alston.com [email protected] [email protected] [email protected] [email protected] [email protected]

/s/ David E. Moot·e

David E. Moore
671739

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