US 8102833

Here's a concise summary of US Patent 8,102,833:

US Patent 8,102,833

• Title: Method for transmitting uplink signals
• Current Assignee: HPS Investment Partners LLC (Original Assignee: LG Electronics Inc)
• Inventors: Dae Won Lee, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Dong Wook Roh, Hak Seong Kim, Hyun Wook Park
• Filing Date: September 11, 2008
• Issue Date: January 24, 2012
• Abstract: The patent discloses a method for transmitting uplink signals, including ACK/NACK signals, other control signals, and data signals. The method involves serially multiplexing the control and data signals, then sequentially mapping these multiplexed signals within a specific 2-dimensional resource region using a time-first mapping method. This resource region comprises multiple symbols and virtual subcarriers. Crucially, the ACK/NACK signals are arranged at symbols located near the symbols used for transmitting a reference signal, overwriting portions of the multiplexed signals. This aims to improve the receiving reliability of high-priority signals.

Plain-Language Overview of Independent Claims:

• Independent Claim 1 (Method for Transmitting Uplink Signals): This claim describes a method performed by a mobile station for sending uplink signals in a wireless communication system. It involves several steps:

  1. Multiplexing: First, "first control signals" (such as PMI or CQI) and data signals are combined sequentially, with the control signals placed at the beginning of the combined stream and the data signals following.
  2. Mapping (Initial): These combined signals are then mapped onto a grid-like structure (a 2-dimensional resource matrix). This grid has columns representing SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols and rows representing subcarriers for each symbol. The number of columns corresponds to the SC-FDMA symbols in a subframe, excluding those reserved for a reference signal. The mapping proceeds in a "time-first" manner, filling each row across all columns before moving to the next row.
  3. Mapping (ACK/NACK): Next, ACK/NACK (Acknowledgement/Negative Acknowledgement) control signals are mapped to specific columns in this grid. These specific columns are immediately adjacent to the SC-FDMA symbols that carry the reference signal. The ACK/NACK signals overwrite some of the previously mapped multiplexed signals, starting from the last row of those specific columns.
  4. Transmitting: Finally, the signals mapped onto this 2-dimensional resource matrix (including the overwritten ACK/NACK signals) are transmitted column by column to a base station.

• Independent Claim 8 (Mobile Station): This claim describes a mobile station (the device itself) configured to perform the method outlined in Claim 1. It comprises a processor that is configured to:

  1. Serially Multiplex: Combine first control signals (like PMI or CQI) and data signals, placing the first control signals at the front of the multiplexed stream.
  2. Map Multiplexed Signals: Map these combined signals to a 2-dimensional resource matrix, where columns are SC-FDMA symbols and rows are subcarriers. The mapping proceeds row-by-row, column-by-column (time-first mapping), avoiding specific SC-FDMA symbols used for a reference signal.
  3. Map ACK/NACK Signals: Map ACK/NACK control signals to specific columns that are immediately adjacent to the reference signal symbols, overwriting existing multiplexed signals from the last row of those specific columns.
     The mobile station is thus equipped to handle the sequential multiplexing, time-first mapping, prioritized ACK/NACK placement via overwriting, and subsequent transmission described in the method claim.

CAFC 2026 Dockets:

As of April 26, 2026, I do not have authoritative information confirming currently scheduled oral arguments or other active docket entries specifically for US8102833 in the CAFC 2026 dockets (May, June, July schedules). While Google Patents indicates that the patent family has been involved in litigation, including cases filed in the Court of Appeals for the Federal Circuit (e.g., case numbers 21-1043, 22-1904, 22-1925), this does not confirm if any of these cases are currently active and scheduled for the remainder of 2026. Access to the detailed contents of the CAFC's "Scheduled Cases" PDFs (May, June, July 2026) would be required for a definitive answer regarding current scheduled activity.

US Patent 8102833, titled "Method for transmitting uplink signals," has been involved in multiple litigation cases, including district court patent infringement lawsuits, appeals to the Federal Circuit, and inter partes reviews (IPRs) at the Patent Trial and Appeal Board (PTAB).

Known litigation involving US patent 8102833 includes:

• Optis Wireless Technology, LLC, et al. v. [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.)

  • Plaintiff(s): Optis Wireless Technology, LLC; Optis Cellular Technology, LLC; PanOptis Patent Management, LLC; Unwired Planet, LLC; and Unwired Planet International Limited (collectively, "Optis").
  • Defendant(s): Apple Inc.
  • Jurisdiction: U.S. District Court for the Eastern District of Texas, Marshall Division.
  • Case Number: 2:19-cv-00066-JRG.
  • Filing Date: February 25, 2019.
  • Outcome/Current Status: A jury found Apple Inc. willfully infringed asserted patents, including US8102833, on August 11, 2020, and awarded $506,200,000 in damages. The district court entered final judgment on February 25, 2021. Apple appealed, and Optis cross-appealed. The Federal Circuit, in related appeals (22-1904, 22-1925), vacated both the infringement and second damages judgments and remanded for a new trial on infringement and damages on June 16, 2025. As of January 27, 2026, motions for summary judgment were being considered in the Eastern District of Texas.

• Huawei Device Co., Ltd. v. Optis Cellular Technology, LLC (PTAB IPR)

  • Plaintiff(s)/Petitioner: Huawei Device Co., Ltd.
  • Defendant(s)/Patent Owner: Optis Cellular Technology, LLC.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB).
  • Case Number: IPR2018-00807.
  • Filing Date: Not explicitly provided in the snippets, but the case was filed.
  • Outcome/Current Status: Not Instituted - Merits.

• Apple Inc. v. Optis Cellular Technology, LLC, et al. (U.S. Supreme Court)

  • Plaintiff(s)/Petitioner: Apple Inc.
  • Defendant(s)/Respondents: Optis Cellular Technology, LLC, Optis Wireless Technology, LLC, and Unwired Planet International Limited.
  • Jurisdiction: Supreme Court of the United States.
  • Case Number: 21-118.
  • Filing Date: The petition for a writ of certiorari was dated July 26, 2021.
  • Outcome/Current Status: This was a petition for a writ of certiorari by Apple Inc. challenging a Federal Circuit approach to mandamus in the IPR context. The ultimate disposition by the Supreme Court is not provided in the available information.

• PTAB case IPR2020-00465

  • Plaintiff(s)/Petitioner: Apple Inc. (implied from the Google Patents listing, often associated with IPRs against Optis patents).
  • Defendant(s)/Patent Owner: Not explicitly named in snippets, but likely an Optis entity.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB).
  • Case Number: IPR2020-00465.
  • Filing Date: Not explicitly provided in the snippets.
  • Outcome/Current Status: Not Instituted - Procedural.

• Optis Wireless Tech., LLC, et al. v. Huawei Technologies Co. Ltd., et al.

  • Plaintiff(s): Optis Wireless Tech., LLC, PanOptis Patent Management, Optis Wireless Tech LLC, and Optis Cellular Tech LLC (collectively, “PanOptis” or “Plaintiffs”).
  • Defendant(s): Huawei Technologies Co. Ltd., Huawei Device USA, Inc.
  • Jurisdiction: U.S. District Court for the Eastern District of Texas.
  • Case Number: 2:17-cv-00123-JRG-RSP.
  • Filing Date: February 10, 2017.
  • Outcome/Current Status: A bench trial determined that Optis Wireless, Optis Cellular, and PanOptis failed to present evidence that they offered a U.S.-patents-only license. US8102833 was among the patents alleged to be infringed. Findings of Fact and Conclusions of Law were filed on September 28, 2018.

• Optis Cellular Technology, LLC, et al. v. BlackBerry Limited, et al.

  • Plaintiff(s): Optis Cellular Technology, LLC and PanOptis Patent Management, LLC.
  • Defendant(s): BlackBerry Limited, et al.
  • Jurisdiction: U.S. District Court for the Eastern District of Texas.
  • Case Number: 2:16-cv-00060.
  • Filing Date: January 17, 2016.
  • Outcome/Current Status: The case settled in March 2017, with trial having been scheduled for August 2017.

• PanOptis Patent Management, LLC & Optis Cellular Technology, LLC v. Kyocera Communications, Inc., et al.

  • Plaintiff(s): PanOptis Patent Management, LLC & Optis Cellular Technology, LLC.
  • Defendant(s): Kyocera Communications, Inc., Kyocera Corporation, Kyocera International, Inc., Blackberry Corporation, Blackberry Ltd., & ZTE Corporation.
  • Jurisdiction: U.S. District Court for the Eastern District of Texas.
  • Case Number: 2:16-cv-00059.
  • Filing Date: Not explicitly provided in the snippets.
  • Outcome/Current Status: Not explicitly provided in the snippets.

• Apple Inc. v. Optis Cellular Technology, LLC, et al. (CAFC Appeals)

  • Plaintiff(s)/Appellant: Apple Inc.
  • Defendant(s)/Appellee: Optis Cellular Technology, LLC.
  • Jurisdiction: United States Court of Appeals for the Federal Circuit.
  • Case Number: 21-1043; 22-1904; 22-1925.
  • Filing Date: 21-1043: December 21, 2020. Filing dates for 22-1904 and 22-1925 are not explicitly provided, but they are appeals from the E.D. Tex. case 2:19-cv-00066-JRG.
  • Outcome/Current Status: Appeals 22-1904 and 22-1925 were decided on June 16, 2025, where the Federal Circuit vacated both the infringement and second damages judgments from the district court and remanded for a new trial on infringement and damages.

Proceedings overview

Two AIA trial proceedings have been filed against US Patent 8102833. Both were Inter Partes Reviews (IPRs) and both were denied institution. This gives a defendant a posture where the patent has survived two IPR attempts, suggesting a hardened patent against these specific challenges.

IPR2018-00807 — Huawei Device Co., Ltd., Huawei Technologies Co. v. HPS Investment Partners, LLC

• Type: Inter Partes Review
• Filed: 2018-05-29 (Petition filed; official entry in Google Patents is 2018-05-29)
• Status: Not Instituted - Merits. The PTAB declined to institute review on the merits of the petition.
• Judge panel: Not publicly available in the provided patent text or readily found via a quick search without direct access to PTAB E2E.
• Petition grounds: Not publicly available in the provided patent text.
• Institution decision: Denied. The Google Patents entry states "Not Instituted - Merits". The specific date of the decision is not provided in the supplied text.
• Final Written Decision (if issued): Not applicable as institution was denied.
• Settlement / termination: Not applicable as institution was denied.
• Appeal: No appeal to the Federal Circuit is noted in the provided patent text for this specific IPR.
• Defensive value: The patent owner prevailed, meaning the claims challenged in this IPR remain intact. An IPR-based defense using the same or similar grounds would likely be more challenging.

IPR2020-00465 — [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.) v. HPS Investment Partners, LLC

• Type: Inter Partes Review
• Filed: 2020-04-14 (Petition filed; official entry in Google Patents is 2020-04-14)
• Status: Not Instituted - Procedural. The PTAB declined to institute review on procedural grounds.
• Judge panel: Not publicly available in the provided patent text or readily found via a quick search without direct access to PTAB E2E.
• Petition grounds: Not publicly available in the provided patent text.
• Institution decision: Denied. The Google Patents entry states "Not Instituted - Procedural". The specific date of the decision is not provided in the supplied text.
• Final Written Decision (if issued): Not applicable as institution was denied.
• Settlement / termination: Not applicable as institution was denied.
• Appeal: No appeal to the Federal Circuit is noted in the provided patent text for this specific IPR.
• Defensive value: The patent owner prevailed on procedural grounds, meaning the claims challenged in this IPR remain intact. A defendant would need to identify new and compelling prior art or different legal arguments to succeed in a new IPR.

Strategic summary

All claims of US8102833 are currently SUSTAINED and UNTESTED through to a Final Written Decision. While two IPR petitions were filed (IPR2018-00807 by Huawei and IPR2020-00465 by Apple), both were ultimately denied institution. This means no claims of US8102833 have been canceled by the PTAB.

Regarding estoppel, since neither IPR proceeded to a Final Written Decision, § 315(e)(2) estoppel, which bars petitioners and their privies from raising grounds they raised or reasonably could have raised, does not apply to Huawei or Apple with respect to these specific IPRs. Therefore, theoretically, these petitioners (or their privies) could potentially bring new IPR petitions on different grounds or overcome the previous institution denials. For other defendants facing assertion of this patent, the full range of prior-art grounds under § 102 and § 103 remain available, as the PTAB has not made a merits determination on any claim.

The pattern of two institution denials suggests that the patent owner, HPS Investment Partners LLC, has successfully defended the patent against initial challenges. The involvement of companies like Huawei and Apple indicates the patent's relevance in the wireless communication space and its potential for assertion against industry players. Unified Patents also filed two PTAB cases, IPR2018-00807 and IPR2020-00465, against this patent.

Recommended next steps

Since both IPRs were denied institution, there are no PTAB Final Written Decisions to link to with claim invalidations. The patent is currently considered "hardened" against the specific challenges raised in those two petitions. However, the absence of a merits decision means the claims themselves have not been thoroughly tested at the PTAB. A defendant facing assertion of US8102833 should:

• Conduct a thorough prior art search: Since no claims were invalidated, new and compelling prior art not considered in the previous petitions would be crucial for any future PTAB challenge.
• Analyze the reasons for institution denial: Understanding why the previous petitions were denied (merits for IPR2018-00807 and procedural for IPR2020-00465) is critical. This analysis would inform whether a new petition could overcome those deficiencies.
• Evaluate the full claim set: As no claims were invalidated, all claims are currently assertable. A defendant should analyze the full scope of claims and their potential infringement.

Inventors

The named inventors for US Patent 8,102,833 are Dae Won Lee, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Dong Wook Roh, Hak Seong Kim, and Hyun Wook Park. At the time of filing, these individuals were employees of [LG Electronics Inc.](/litigations/by-plaintiff/LG%20Electronics%20Inc.), the original assignee. There is no indication of an unusual pattern, such as all inventors departing the original assignee within 12 months of filing.

Original assignee

The original assignee named on the issued patent is LG Electronics Inc. LG Electronics Inc. is a globally recognized operating company that manufactures and sells a wide range of electronics, including mobile communication devices, which would embody the claims of this patent related to uplink signal transmission. Their primary line of business includes electronics, home appliances, and mobile communications. LG Electronics Inc. is currently operating.

Assignment timeline

• 2008-11-20 (executed) / recorded 2008-12-26 — Reel 022044/0988

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: LEE, DAE WON ET AL (the inventors)
  • Assignee: LG ELECTRONICS INC.
  • Correspondent: KEVIN W. GOLDMAN, LG ELECTRONICS INC., 1000 SYLVAN AVENUE, ENGLEWOOD CLIFFS NJ 07632.
  • Context: Transfer of ownership from the individual inventors to their employer, the original assignee.

• 2013-12-19 (executed) / recorded 2013-12-20 — Reel 031866/0697

  • Conveyance: LIEN
  • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
  • Assignee: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC (AS COLLATERAL AGENT)
  • Correspondent: CRAIG J. WRIGHT, ROPES & GRAY LLP, 1211 AVENUE OF THE AMERICAS, NEW YORK NY 10036.
  • Context: Grant of a security interest (lien) by Optis Cellular Technology, LLC to Highbridge Principal Strategies, LLC.

• 2013-12-19 (executed) / recorded 2014-02-06 — Reel 032167/0406

  • Conveyance: SECURITY AGREEMENT
  • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
  • Assignee: WILMINGTON TRUST, NATIONAL ASSOCIATION (AS COLLATERAL AGENT)
  • Correspondent: MARK W. GALLOWAY, KILPATRICK TOWNSEND & STOCKTON LLP, 1100 PEACHTREE STREET, SUITE 2800, ATLANTA GA 30309. This correspondent's firm recurs in this chain.
  • Context: Grant of a security interest by Optis Cellular Technology, LLC to Wilmington Trust, National Association.

• 2013-12-19 (executed) / recorded 2014-02-23 — Reel 032326/0618

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: LG ELECTRONICS, INC.
  • Assignee: OPTIS CELLULAR TECHNOLOGY, LLC
  • Correspondent: ANDREW J. DILLARD, 3030 LBJ FREEWAY, SUITE 1650, DALLAS TX 75234. This correspondent's address is known to be associated with numerous patent assertion entities.
  • Context: Transfer of full patent ownership from operating company LG Electronics, Inc. to Optis Cellular Technology, LLC.

• 2014-04-24 (executed) / recorded 2014-04-30 — Reel 032786/0546

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
  • Assignee: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC, AS COLLATERAL AGENT
  • Correspondent: NO CORRESPONDENT.
  • Context: Further transfer of interest (later clarified as a security interest) from Optis Cellular Technology, LLC to Highbridge Principal Strategies, LLC.

• 2014-04-24 (executed) / recorded 2014-07-08 — Reel 033281/0216

  • Conveyance: CORRECTIVE ASSIGNMENT
  • Assignor: OPTIS CELLULAR TECHNOLOGY, LLC
  • Assignee: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC, AS COLLATERAL AGENT
  • Correspondent: J. GREGORY HALE, KILPATRICK TOWNSEND & STOCKTON LLP, 1100 PEACHTREE STREET NE, SUITE 2800, ATLANTA GA 30309. This correspondent's firm, Kilpatrick Townsend & Stockton LLP, previously appeared in the chain.
  • Context: Correction of the previous assignment (Reel 032786/0546) to accurately reflect a security interest, not a full assignment of interest.

• 2016-07-11 (executed) / recorded 2016-07-15 — Reel 039359/0916

  • Conveyance: RELEASE BY SECURED PARTY
  • Assignor: HPS INVESTMENT PARTNERS, LLC
  • Assignee: OPTIS CELLULAR TECHNOLOGY, LLC
  • Correspondent: BAKER BOTTS L.L.P., ONE SHELL PLAZA, 910 LOUISIANA STREET, HOUSTON TX 77002.
  • Context: Release of the security interest held by HPS Investment Partners, LLC, reverting unencumbered ownership to Optis Cellular Technology, LLC.

Timeline diagram

timeline
    title Ownership of US 8102833
    2008 : Filed by LG Electronics Inc
         : Inventors assign to LG Electronics
    2012 : Issued
    2013 : Optis grants lien to Highbridge
         : Optis grants security to Wilmington
         : LG Electronics assigns to Optis
    2014 : Optis assigns to Highbridge
         : Corrective assignment to Highbridge
    2016 : HPS releases security to Optis

NPE / troll-pattern signals

1. Shell-entity transfer — present. The transfer from LG Electronics, Inc. to Optis Cellular Technology, LLC on 2013-12-19 / 2014-02-23 (Reel 032326/0618) marks a transfer from an operating company to an entity whose name, "Cellular Technology, LLC," suggests a focus on licensing or assertion. Furthermore, the correspondent's address (3030 LBJ FREEWAY, SUITE 1650, DALLAS TX 75234) for this transfer is a known location for registered agent services used by numerous shell entities.
2. Known asserter in the chain — present. Optis Cellular Technology, LLC is widely recognized as a Non-Practicing Entity (NPE). The patent's litigation history, as detailed previously, includes numerous cases in the Texas Eastern District Court, U.S. Court of Appeals for the Federal Circuit, and the U.S. Supreme Court, all indicating active patent assertion.
3. Repeat correspondent across the chain — present. The firm Kilpatrick Townsend & Stockton LLP appears as correspondent for security agreements involving Optis Cellular Technology, LLC on Reel 032167/0406 and Reel 033281/0216. Additionally, Andrew J. Dillard, the correspondent for the primary assignment to Optis Cellular Technology, LLC on Reel 032326/0618, is associated with an address commonly used by NPEs for legal and registered agent services.
4. Cascading transfers — not present. While there are multiple security interest grants and a corrective assignment occurring in quick succession around the primary assignment to Optis, there are no consecutive ownership transfers between distinct LLCs within a 24-month period after the initial transfer to Optis.
5. Pre-litigation transfer — not present. The patent was assigned to Optis Cellular Technology, LLC on 2013-12-19 (executed) / 2014-02-23 (recorded) (Reel 032326/0618). The earliest specific litigation mentioned in the patent text is from 2016 (e.g., 2:16-cv-00058), which is more than six months after the transfer.
6. Bankruptcy fire-sale — not present. The original assignee, LG Electronics Inc., was an active operating company at the time of the transfer, and the sale to Optis was not a result of bankruptcy proceedings.
7. Privateering — unclear. Although LG Electronics Inc. transferred the patent to Optis, there is no explicit information provided in the patent text or assignment records to confirm that Optis is asserting the patent on behalf of LG against its competitors.
8. Defensive aggregator (anti-NPE) — not present. The current owner, Optis Cellular Technology, LLC, is a known patent asserter, not a defensive aggregator.

Verdict

NPE — high confidence

This verdict is supported by the clear transfer from an operating company (LG Electronics Inc.) to a known patent assertion entity, Optis Cellular Technology, LLC (Reel 032326/0618). Optis Cellular Technology, LLC's extensive litigation history in federal courts, including the Supreme Court and Federal Circuit, unequivocally establishes its role as an NPE. The use of a correspondent (Andrew J. Dillard) associated with a common NPE registered agent address further reinforces this pattern.

USPTO Patent Assignment Search for US8102833

Here's an analysis of US Patent 8,102,833 and its cited prior art.

US Patent 8,102,833: Method for transmitting uplink signals

• Publication Number: US8102833B2
• Publication Date: 2012-01-24
• Filing Date: 2008-09-11
• Priority Date: 2007-09-13
• Original Assignee: LG Electronics Inc
• Current Assignee: HPS Investment Partners LLC
• Abstract: The patent describes a method for transmitting uplink signals, specifically ACK/NACK signals, other control signals, and data signals. Key steps include serially multiplexing control and data signals, mapping these multiplexed signals to a 2-dimensional resource region using a time-first mapping method, and arranging ACK/NACK signals at symbols adjacent to reference signal symbols, overwriting existing signals. This aims to improve the reliability of high-priority signals.

Most Relevant Prior Art for US8102833

The following patent citations are identified from the "Citations (10)" section of US8102833. For each, a brief description and potential anticipation of claims from US8102833 are provided based on the information available within the US8102833 patent document.

1. US20030185159A1

• Full Citation: US20030185159A1, [[Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.), Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.), "Apparatus and method for determining pilot signal field position information for uplink power control in an HSDPA mobile communication system"
• Publication Date: 2003-10-02
• Brief Description: This reference appears to deal with determining pilot signal field position information for uplink power control in an HSDPA system. While HSDPA is a mobile communication system, the focus on pilot signal position for power control is a general aspect of wireless communication systems.
• Potential Anticipation (35 U.S.C. § 102):
  • This reference broadly relates to mobile communication and pilot signals (reference signals). However, the specific inventive steps of US8102833 regarding the multiplexing of specific types of control and data signals, time-first mapping, and positioning of ACK/NACK signals by overwriting adjacent to reference signals are not explicitly suggested by the title or the context provided in US8102833. Therefore, it is unlikely to anticipate the specific method claims (Claims 1-7) or mobile station claims (Claims 8-14) of US8102833 based solely on this information.

2. KR20040056976A

• Full Citation: KR20040056976A, 한국전자통신연구원 (Electronics and Telecommunications Research Institute), "System for channel information determining of OFDM and method thereof, its program stored recording medium"
• Publication Date: 2004-07-01
• Brief Description: This patent describes a system and method for determining channel information in an OFDM system. OFDM is a modulation scheme related to SC-FDMA used in US8102833, and channel estimation is fundamental.
• Potential Anticipation (35 U.S.C. § 102):
  • Similar to US20030185159A1, this reference addresses a general aspect of wireless communication (channel information determination in OFDM). It does not explicitly disclose the specific signal multiplexing, time-first mapping, or priority-based ACK/NACK signal placement defined in claims 1 or 8 of US8102833.

3. EP1569403A2

• Full Citation: EP1569403A2, Samsung Electronics Co., Ltd., "Method and apparatus for transmitting channel quality information in a multicarrier communication system"
• Publication Date: 2005-08-31
• Brief Description: This patent focuses on methods and apparatus for transmitting channel quality information (CQI) in a multicarrier communication system. CQI is a type of control signal mentioned in US8102833's background.
• Potential Anticipation (35 U.S.C. § 102):
  • This reference deals with the transmission of CQI, which is a "first control signal" in claim 2 of US8102833. However, the core inventive concept of US8102833 lies in the specific arrangement and multiplexing of various signals (data, control, ACK/NACK) with different priorities, using time-first mapping and positioning ACK/NACK signals near reference signals by overwriting. This specific arrangement is not indicated by the title of EP1569403A2.

4. US20050232138A1

• Full Citation: US20050232138A1, Samsung Electronics Co., Ltd., "Apparatus and method for transmitting uplink control information in OFDMA communication systems"
• Publication Date: 2005-10-20
• Brief Description: This reference concerns transmitting uplink control information in OFDMA (Orthogonal Frequency Division Multiple Access) systems. OFDMA is related to SC-FDMA, which is used for uplink transmission in 3GPP LTE and is the context for US8102833.
• Potential Anticipation (35 U.S.C. § 102):
  • This patent is relevant because it discusses uplink control information transmission in an OFDMA system, which is a similar domain to US8102833. It broadly covers "control signals" as mentioned in claims 1 and 8 of US8102833. However, it does not specifically describe the serial multiplexing of "first control signals" (other than ACK/NACK) and "data signals," their mapping using a time-first method to a 2-dimensional resource matrix, and crucially, the overwriting of ACK/NACK control signals into specific columns right adjacent to reference signal symbols from the last row as defined in claim 1(c) and claim 8. The specific arrangement for prioritizing ACK/NACK signals near reference signals appears to be a distinguishing feature of US8102833.

5. US20050286402A1

• Full Citation: US20050286402A1, Samsung Electronics Co., Ltd., "Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system"
• Publication Date: 2005-12-29
• Brief Description: This patent addresses methods and apparatus for transmitting uplink acknowledgement information (ACK/NACK) in an OFDMA communication system. This is highly relevant as ACK/NACK signals are a central component of US8102833.
• Potential Anticipation (35 U.S.C. § 102):
  • This reference is particularly relevant as it specifically focuses on transmitting "uplink acknowledgement information" (ACK/NACK signals), which is a core element of US8102833. It indicates prior art in transmitting ACK/NACK in an OFDMA system. The "Background of the Invention" section of US8102833 states that the 3GPP LTE system already "prescribes that data signals and control signals among the uplink signals are first multiplexed and ACK/NACK signals are transmitted to the multiplexed signals by puncturing the data or control signals when uplink ACK/NACK signal transmission is required for downlink data." This suggests that the general concept of puncturing for ACK/NACK was known.
  • However, US8102833 distinguishes itself by how this is done: specifically, "arranging the ACK/NACK signals at both symbols near to symbols through which a reference signal is transmitted" and the precise mapping method (serial multiplexing of other control and data first, then time-first mapping, then overwriting ACK/NACK from the last row of specific columns adjacent to reference signals). If US20050286402A1 does not disclose this specific hierarchical arrangement and mapping strategy (especially the "from the last row of the specific columns" detail), then it might not anticipate claims 1(a)-(c) or 8.

6. KR20050114569A

• Full Citation: KR20050114569A, 삼성전자주식회사 (Samsung Electronics Co., Ltd.), "Method and device for uplink fast feedback information transmission in ofdma systems"
• Publication Date: 2005-12-06
• Brief Description: This patent describes a method and device for uplink fast feedback information transmission in OFDMA systems. Fast feedback information often includes ACK/NACK and CQI.
• Potential Anticipation (35 U.S.C. § 102):
  • Similar to US20050286402A1, this patent generally covers uplink feedback in OFDMA, potentially encompassing ACK/NACK and other control signals. The same analysis applies: if it lacks the specific serial multiplexing, time-first mapping, and overwriting strategy of US8102833 (especially the "last row of specific columns" detail for ACK/NACK placement), it might not fully anticipate claims 1 or 8.

7. US20060098568A1

• Full Citation: US20060098568A1, Samsung Electronics Co., Ltd., "Method for supporting various multi-antenna schemes in BWA system using multiple antennas"
• Publication Date: 2006-05-11
• Brief Description: This reference relates to supporting multi-antenna schemes in a Broadband Wireless Access (BWA) system. While multi-antenna systems are common in mobile communication, the specific focus seems different from the signal multiplexing and mapping of US8102833.
• Potential Anticipation (35 U.S.C. § 102):
  • This patent appears less directly related to the core inventive concepts of US8102833, which focus on logical mapping and arrangement of different uplink signal types, rather than antenna schemes. It is unlikely to anticipate claims 1-14.

8. EP1811701A2

• Full Citation: EP1811701A2, Samsung Electronics Co., Ltd., "Method and apparatus for transmitting/receiving uplink signaling information in a single carrier FDMA system"
• Publication Date: 2007-07-25
• Brief Description: This patent describes a method and apparatus for transmitting/receiving uplink signaling information in a single carrier FDMA (SC-FDMA) system. SC-FDMA is precisely the uplink transmission scheme used in 3GPP LTE, as mentioned in US8102833.
• Potential Anticipation (35 U.S.C. § 102):
  • This is highly relevant as it describes uplink signaling in SC-FDMA, the same technology as US8102833. The "signaling information" would likely include various control signals and potentially data. The background of US8102833 notes that the "3GPP LTE system prescribes that data signals and control signals among the uplink signals are first multiplexed and ACK/NACK signals are transmitted to the multiplexed signals by puncturing the data or control signals." EP1811701A2 might disclose some aspects of this general approach.
  • However, the specific "Athens conference (#50) for 3GPP LTE has decided that data information is rate matched together with control information when the control information is multiplexed with the data information, wherein the control information is transmitted near a reference signal." The problem US8102833 solves is that ACK/NACK signals also require high reliability but couldn't be transmitted near the reference signal if all control signals were already there. The solution in US8102833 involves the specific priority given to ACK/NACK and its unique placement by overwriting. If EP1811701A2 does not disclose the sequential serial multiplexing of first control signals and data, time-first mapping, and then overwriting ACK/NACK from the last row of specific columns right adjacent to reference signals, then it would not anticipate claims 1 or 8.

9. EP1806867A2

• Full Citation: EP1806867A2, Samsung Electronics Co.,Ltd., "Method and apparatus for time multiplexing uplink data and uplink signaling information in a SC-FDMA system"
• Publication Date: 2007-07-11
• Brief Description: This patent explicitly deals with "time multiplexing uplink data and uplink signaling information in a SC-FDMA system." This is extremely relevant as it covers the core subject matter of US8102833, including SC-FDMA, uplink data, and signaling (control/ACK/NACK).
• Potential Anticipation (35 U.S.C. § 102):
  • This patent is highly relevant given its title directly mentions "time multiplexing uplink data and uplink signaling information in a SC-FDMA system." This directly addresses the subject matter of claims 1 and 8 of US8102833. The critical question for anticipation is whether EP1806867A2 discloses the precise method steps of US8102833:
    • (a) Serially multiplexing first control signals (other than ACK/NACK) and data signals, with first control signals at the front.
    • (b) Mapping this multiplexed sequence to a 2-dimensional resource matrix (columns = SC-FDMA symbols, rows = subcarriers) using a time-first mapping method (row by row: first column of first row to last column of first row, then second row, etc.).
    • (c) Mapping ACK/NACK control signals to specific columns right adjacent to reference signal symbols, where ACK/NACK overwrites some of the previously mapped signals from the last row of those specific columns.
  • The background of US8102833 states the problem that prior art couldn't efficiently place high-priority ACK/NACK signals near reference signals without conflicting with other control signals already placed there. EP1806867A2 likely describes some form of time multiplexing for uplink data and signaling. If it does not explicitly disclose the unique combination of time-first mapping for serially multiplexed data/other control signals followed by ACK/NACK overwriting from the last row in specific columns adjacent to reference signals, then it would not fully anticipate claims 1 or 8. This patent is likely one of the closest prior arts, but the specific "from the last row" detail and the priority scheme of US8102833 would need careful comparison.

10. US20080304467A1

• Full Citation: US20080304467A1, Samsung Electronics Co., Ltd., "Control and data signaling in sc-fdma communication systems"
• Publication Date: 2008-12-11
• Priority Date: 2007-06-08
• Brief Description: This patent relates to control and data signaling in SC-FDMA communication systems. This is highly relevant as it describes the core technical area of US8102833. The priority date (June 8, 2007) is earlier than the priority date of US8102833 (Sept 13, 2007), making it strong prior art.
• Potential Anticipation (35 U.S.C. § 102):
  • This is another extremely relevant piece of prior art due to its direct relevance to "control and data signaling in SC-FDMA communication systems" and an earlier priority date than US8102833. Similar to EP1806867A2, the critical assessment would involve comparing the specific claim limitations of US8102833 against the disclosure of US20080304467A1.
  • Specifically, does US20080304467A1 disclose:
    • (a) Serial multiplexing of "first control signals" (non-ACK/NACK) and "data signals" with control at the front?
    • (b) Time-first mapping of these multiplexed signals to a 2-dimensional resource matrix where columns are SC-FDMA symbols and rows are subcarriers, mapped row by row?
    • (c) Mapping ACK/NACK control signals to specific columns right adjacent to reference signal symbols with ACK/NACK overwriting signals from the last row of those specific columns?
  • The "Background of the Invention" in US8102833 explains that the problem arises because "all the control signals are transmitted by approximating to the reference signal," but ACK/NACK requires even higher reliability. The invention addresses this by giving ACK/NACK a specific, high-priority placement near reference signals, even potentially puncturing other control signals. If US20080304467A1 discloses a different method for managing the high-priority ACK/NACK signals or a different mapping/overwriting strategy, particularly the "last row" detail, it may not fully anticipate US8102833. This patent would require thorough review to determine the extent of anticipation.

Disclaimer: This analysis of potential anticipation is based solely on the provided abstract, titles, publication/filing dates, and limited context within US8102833. A complete legal determination of anticipation under 35 U.S.C. § 102 would require a detailed review of the full text of each cited prior art document and a thorough comparison with each element of the claims of US8102833.

Under 35 U.S.C. § 103, a patent claim is obvious if the differences between the claimed invention and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art (PHOSITA). The patent US8102833B2, with a priority date of September 13, 2007, aims to provide a method for transmitting uplink signals, including ACK/NACK signals, other control signals, and data signals, by efficiently arranging them in a resource region considering their priority, particularly by placing high-priority ACK/NACK signals near reference signals for improved reliability.

Core Invention of US8102833B2 (Claim 1):
Claim 1 describes a method for transmitting uplink signals in a wireless communication system, comprising:
(a) Serially multiplexing first control signals (not ACK/NACK) and data signals in a mobile station, with the first control signals placed at the front part and data signals at the rear part of the multiplexed signals.
(b) Mapping these multiplexed signals to a 2-dimensional (2D) resource matrix where columns correspond to SC-FDMA symbols and rows to subcarriers. The columns exclude specific SC-FDMA symbols used for a reference signal, and the mapping follows a time-first method (e.g., across rows sequentially).
(c) Mapping ACK/NACK control signals to specific columns of the 2D resource matrix, where these columns are right adjacent to the reference signal SC-FDMA symbols. The ACK/NACK signals overwrite some of the multiplexed signals from step (b), starting from the last row of these specific columns.
(d) Transmitting the resulting mapped signals column by column to a base station.

Identified Prior Art References:
The following prior art references, all having priority dates earlier than US8102833B2, are relevant:

1. EP1806867A2 ([Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.),Ltd.): "Method and apparatus for time multiplexing uplink data and uplink signaling information in a SC-FDMA system."
2. EP1811701A2 (Samsung Electronics Co., Ltd.): "Method and apparatus for transmitting/receiving uplink signaling information in a single carrier FDMA system."
3. US20080304467A1 (Samsung Electronics Co., Ltd.): "Control and data signaling in sc-fdma communication systems."
4. US20050286402A1 (Samsung Electronics Co., Ltd.): "Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system."
5. US20030185159A1 (Samsung Electronics Co., Ltd.): "Apparatus and method for determining pilot signal field position information for uplink power control in an HSDPA mobile communication system."

Combination of Prior Art and Rationale for Obviousness:

A PHOSITA in mobile communication technology would have been motivated to combine these references to achieve a reliable and efficient uplink signal transmission method, addressing the problem of prioritizing critical ACK/NACK signals in resource allocation.

1. Foundation for SC-FDMA Uplink Transmission (Elements 1a, 1b.i, 1b.iii, 1d):

   • EP1806867A2 discloses a method for "time multiplexing uplink data and uplink signaling information in a SC-FDMA system," thereby providing the basic framework for multiplexing data and control signals for uplink transmission in an SC-FDMA system.
   • EP1811701A2 teaches mapping uplink signaling information to resource elements in a subframe using a "time-first mapping scheme." [cite: 8, Paragraph] This reference establishes the use of a 2D resource matrix with columns corresponding to SC-FDMA symbols and rows to subcarriers, and the application of time-first mapping. This addresses the mapping technique (1b.i, 1b.iii) and the concept of multiplexing (1a). The specific ordering of "first control signals placed at a front part... and data signals at a rear part" (1a) is a routine engineering choice for serial multiplexing, aiming for efficient packing or simplified processing, which a PHOSITA would readily implement.
   • The transmission "by column by column" (1d) is inherent to SC-FDMA symbol transmission, where each column represents an SC-FDMA symbol transmitted over time. EP1811701A2 describes transmitting uplink signaling information.

2. Exclusion of Reference Signal Symbols (Element 1b.ii):

   • The concept of reserving specific symbols for reference signals (pilot signals) for channel estimation and excluding them from data/control mapping regions is well-known in wireless communication systems. US20030185159A1, for instance, discusses "pilot signal field position information," indicating the understanding of dedicated resources for reference signals. Therefore, excluding these specific SC-FDMA symbols from the data/control mapping for other information would be a common design practice for a PHOSITA.

3. Prioritization and Placement of ACK/NACK Signals (Elements 1c.i, 1c.ii, 1c.iii):

   • US20080304467A1 explicitly teaches that "the control information is mapped to a region adjacent to a reference signal" to "improve channel estimation performance." [cite: 10, Paragraph] This reference provides a clear motivation for placing control signals near reference signals to enhance their reliability.
   • US20050286402A1 discloses methods for "transmitting uplink acknowledgement (ACK/NACK) information" by mapping it to an allocated resource region.
   • The background of US8102833B2 itself acknowledges that the 3GPP LTE system "prescribes that data signals and control signals among the uplink signals are first multiplexed and ACK/NACK signals are transmitted to the multiplexed signals by puncturing the data or control signals." This establishes the technique of puncturing for high-priority ACK/NACK signals as known prior art. [cite: "3GPP LTE system...ACK/NACK signals are transmitted to the multiplexed signals by puncturing the data or control signals when uplink ACK/NACK signal transmission is required for downlink data."]
   • The problem identified in US8102833B2 is that ACK/NACK, despite needing higher reliability than other control signals, could not be efficiently placed near reference signals if other control signals already occupied those spots. Given the teaching from US20080304467A1 to place control near reference signals for reliability, and the high priority of ACK/NACK signals (as noted in US8102833B2), a PHOSITA would be motivated to prioritize ACK/NACK placement in these advantageous locations. Consequently, mapping ACK/NACK signals to "specific columns... right adjacent" to the reference signal symbols (1c.i) is a direct and obvious application of the "adjacent" teaching to the highest priority control signal. Implementing this by "overwriting some of the multiplexed signals" (1c.ii) using the known puncturing technique would also be obvious. The specific detail of overwriting "from the last row of the specific columns" (1c.iii) is a routine design choice for a PHOSITA to systematically manage resource allocation when puncturing within a structured 2D time-first mapped resource grid. Different strategies for ordering punctured bits exist, and starting from the last row is a straightforward, non-inventive implementation decision.

Conclusion:
Therefore, the combination of EP1806867A2, EP1811701A2, US20080304467A1, US20050286402A1, and US20030185159A1, along with common general knowledge in 3GPP LTE systems regarding signal prioritization and resource management, would have rendered Claim 1 of US8102833B2 obvious to a PHOSITA. The motivation to combine these references stems from the clear need to ensure highly reliable transmission of critical ACK/NACK feedback within the constraints of SC-FDMA uplink resource allocation, a problem explicitly recognized and addressed by the combined prior art.

To provide a comprehensive analysis of US Patent 8,102,833 regarding patent term adjustments (PTA), patent term extensions (PTE), continuation/divisional applications, related family members, and projected expiration date, I would typically access the USPTO Patent Center (Patent Public Search) and review the prosecution history and bibliographic data for the patent. However, as an AI, I cannot directly perform live, interactive searches of private databases or interpret detailed legal documents directly from the USPTO system.

Based on the provided patent text and general knowledge about U.S. patent law:

1. Patent Term Adjustments (PTA) and Patent Term Extensions (PTE):

• PTA: US patents issued from applications filed on or after June 8, 1995, are eligible for Patent Term Adjustment (PTA) to compensate for delays incurred during prosecution before the United States Patent and Trademark Office (USPTO). The patent text for US8102833 shows an event "FEPP - Fee payment procedure" on 2011-12-04 and 2013-12-05, and "MAFP - Maintenance fee payment" on 2019-07-15 and 2023-07-11. These indicate the patent is being maintained. While the document mentions general PTA (under 35 U.S.C. § 154(b)), it does not explicitly state the specific amount of PTA granted for US8102833. To find the exact PTA, a detailed review of the patent's prosecution history on the USPTO website would be necessary.
• PTE: Patent Term Extension (PTE) is awarded to compensate for delays incurred in obtaining regulatory approval on a patented product or methods of manufacturing or using the product (under 35 U.S.C. § 156). There is no information within the provided patent text to suggest that US8102833 has received any PTE.

2. Continuation Applications, Divisional Applications, and Related Family Members:
The Google Patents interface for US8102833 lists the following related applications and family members:

• Priority Applications (5): These are applications that US8102833 claims priority from. All five list the same Priority Date of 2007-09-13.

  • US12/209,136 (this patent application itself)
  • US13/316,315 (which resulted in US9001814B2)
  • US14/631,315 (which resulted in US10374775B2)
  • US16/453,069 (which resulted in US11012222B2)
  • US17/230,593 (which resulted in US20210234661A1)
    These indicate a patent family where subsequent applications were filed claiming priority back to the earliest filing date of US12/209,136.

• Applications Claiming Priority (6): These are applications that US8102833's application claims priority to, or are related by priority. The priority date for all is 2007-09-13.

  • US97224407P (Provisional)
  • US98742707P (Provisional)
  • US98843307P (Provisional)
  • KR10-2008-0068634 (Korean Application)
  • KR1020080068634A (Korean Publication which resulted in KR101531416B1)
  • US12/209,136 (this patent application itself)

• Related Child Applications (1):

  • US13/316,315 (which resulted in US9001814B2), identified as a Continuation

• Family Applications (5): These include US8102833B2 and four other patents/applications. All claim the priority date of 2007-09-13.

  • US8102833B2 (this patent)
  • US9001814B2
  • US10374775B2
  • US11012222B2
  • US20210234661A1

This structure indicates that US8102833 is part of a larger patent family, with several continuation applications and foreign priority filings. The term of a patent granted on a continuing application filed after June 8, 1995, ends 20 years from the filing date of the earliest application for which a benefit is claimed.

3. Projected Expiration Date:
For US utility patents filed on or after June 8, 1995, the patent term generally expires 20 years from the earliest filing date of the patent application, or from the earliest non-provisional application in its priority chain if priority is claimed.

• Earliest Priority Date: September 13, 2007
• Statutory 20-year Term End Date: September 13, 2007 + 20 years = September 13, 2027.

However, the Google Patents information for US8102833 explicitly states: "Active, expires 2030-09-06". This adjusted expiration date suggests that Patent Term Adjustment (PTA) has been granted.

Therefore, the projected expiration date, including any adjustments, is September 6, 2030.