{
  "patent_number": "US RE50045",
  "country": "US",
  "title": "How Mobile Devices Automatically Manage Data Retransmission Errors",
  "original_title": "USRE50045E1 - Apparatus and method for transmitting and receiving packets in a mobile communication system supporting hybrid automatic repeat request",
  "summary": "A method for mobile devices to efficiently track and fix data transmission errors by mathematically assigning ID tags to recurring data packets.",
  "what_it_does": "When a phone receives data, some packets might arrive corrupted. This patent describes a system where the network and the phone agree on a mathematical formula to label these data packets using a HARQ process ID. By using the timing of the transmission and the interval of the resource allocation, the device can automatically calculate which ID belongs to which packet. This allows the device to correctly combine a failed initial transmission with a later retransmission to successfully decode the data.",
  "what_it_does_not_cover": [
    "Does not cover data transmission methods that do not use semi-persistent resource allocation",
    "Does not cover error correction methods that rely solely on forward error correction without retransmission",
    "Does not cover the physical hardware design of the antennas or radio frequency transceivers"
  ],
  "filed": "2019-09-27",
  "granted": "2024-07-16",
  "expires": null,
  "status": "active",
  "holder": "Samsung Electronics Co Ltd",
  "holder_url": "https://patentbrief.org/company/samsung-electronics-co-ltd",
  "inventors": [
    {
      "name": "Gert Jan Van Lieshout",
      "url": "https://patentbrief.org/inventor/gert-jan-van-lieshout"
    },
    {
      "name": "Soeng-Hun Kim",
      "url": "https://patentbrief.org/inventor/soeng-hun-kim"
    },
    {
      "name": "Ju-Ho Lee",
      "url": "https://patentbrief.org/inventor/ju-ho-lee"
    },
    {
      "name": "Hwan-Joon Kwon",
      "url": "https://patentbrief.org/inventor/hwan-joon-kwon"
    }
  ],
  "times_cited": 0,
  "tags": [
    "telecommunications",
    "semiconductors"
  ],
  "abstract": "An apparatus and a method are provided for operating HARQ in a mobile communication system. The method includes receiving a number of HARQ processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information for a first transmission; receiving data in the first transmission at a subframe based on the semi-persistent resource allocation interval information; calculating a HARQ process IDentifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and time information; receiving control information including the HARQ process ID on an L1 control channel; receiving data in a retransmission based on the control information including the HARQ process ID; combining the data received in the first transmission and the data received in the retransmission; and decoding the combined data.",
  "url": "https://patentbrief.org/patent/us/RE50045/vacuum-insulated-tumbler-quencher",
  "markdown_url": "https://patentbrief.org/patent/us/RE50045/vacuum-insulated-tumbler-quencher/md",
  "google_patents_url": "https://patents.google.com/patent/USRE50045",
  "relatedPatents": []
}