# US 11,310,769 B2 · Method, apparatus, and computer-readable medium for enhanced decoding of narrowband master information blocks (MIB-NB) > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,769 B2 - Document ID: US11310769B2 - Status: Granted - Kind: B2 - Application number: 16/644,289 - Filed: 2018-10-02 - Published: 2021-03-04 - Granted: 2022-04-19 - Earliest claimed: 2017-10-02 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Kazuyoshi Uesaka; Muhammad Kazmi; Santhan Thangarasa - Web page: https://patentgrep.com/patent/US11310769B2 ## CPC - H04W 48/10: using broadcasted information - H04W 72/30: Resource management for broadcast services - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04L 1/1845: {Combining techniques, e.g. code combining} - G16Y 10/75: Information technology; Communication - H04L 1/0067: {Rate matching (H04L1/0013 and H04L1/08 take precedence)} - H04L 2001/0093: {Point-to-multipoint} - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - G16Y: INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT] ## Abstract Exemplary embodiments include methods and/or procedures for operating a wireless device (420, 1210) in communication with a first network node. Exemplary embodiments include receiving (902), from the first network node, an indication of at least one repetition method used in a broadcast channel transmitted by a second network node (401, 1260), wherein the repetition method comprises: a first portion of an information block in first resources of the broadcast channel that are reserved for the information block; and a second portion of the information block, comprising at least a subset of the first portion, in second resources of the broadcast channel that are different from the first resources. Exemplary embodiments also include receiving (904) the broadcast channel transmitted by the second network node, and decoding (906) the information block by combining the first portion and the second portion. Exemplary embodiments also include complementary methods and/or procedures performed by first and second network nodes, as well as wireless devices, network nodes, and computer-readable media configured in accordance with the exemplary methods and/or procedures. ## Claims ### Claim 1 A method for operating a wireless device in communication with a first network node, the method comprising: receiving, from the first network node, an indication of at least one repetition method used in a broadcast channel transmitted by a second network node, wherein the repetition method comprises: a first portion of an information block in first resources of the broadcast channel that are reserved for the information block; and a second portion of the information block, comprising at least a subset of the first portion, in second resources of the broadcast channel that are different from the first resources; receiving the broadcast channel transmitted by the second network node; and decoding the information block by combining the first portion and the second portion, the broadcast channel being a narrowband physical broadcast channel (NPBCH); the information block being a narrowband master information block (MIB-NB); the first resources comprising at least a portion of symbols that include the NPBCH; and the second resources comprising at least a portion of symbols that do not include the NPBCH. ### Claim 2 (depends on 1) The method of claim 1, wherein the indicated repetition method comprises repetition of a subset of the first portion of the MIB-NB in the second resources. ### Claim 3 (depends on 1) The method of claim 1, wherein: the first portion of the MIB-NB is coded at a first rate; the second portion comprises the first portion of the MIB-NB coded at a second rate greater than the first rate; and the indicated repetition method comprises repetition of the first portion of the MIB-NB coded at the second rate in the second resources. ### Claim 4 (depends on 3) The method of claim 3, wherein combining the first portion and the second portion comprises rate-matching the first portion and the second portion. ### Claim 5 A wireless device comprising: power supply circuitry configured to supply power to the first network node; and processing circuitry configured to: receive, from a first network node, an indication of at least one repetition method used in a broadcast channel transmitted by a second network node, wherein the repetition method comprises: a first portion of an information block in first resources of the broadcast channel that are reserved for the information block; and a second portion of the information block, comprising at least a subset of the first portion, in second resources of the broadcast channel that are different from the first resources; receive the broadcast channel transmitted by the second network node; and decode the information block by combining the first portion and the second portion, the broadcast channel being a narrowband physical broadcast channel (NPBCH); the information block being a narrowband master information block (MIB-NB); the first resources comprising at least a portion of symbols that include the NPBCH; and the second resources comprising at least a portion of symbols that do not include the NPBCH. ### Claim 6 (depends on 5) The wireless device of claim 5, wherein the indicated repetition method comprises repetition of a subset of the first portion of the MIB-NB in the second resources. ### Claim 7 (depends on 5) The wireless device of claim 5, wherein: the first portion of the MIB-NB is coded at a first rate; the second portion comprises the first portion of the MIB-NB coded at a second rate greater than the first rate; and the indicated repetition method comprises repetition of the first portion of the MIB-NB coded at the second rate in the second resources. ### Claim 8 (depends on 7) The wireless device of claim 7, wherein the processing circuitry is configured to combine the first portion and the second portion by rate-matching the first portion and the second portion. ### Claim 9 A method for a first network node in a wireless communication network, the method comprising: determining at least one repetition method used in a broadcast channel transmitted by a second network node, wherein the repetition method comprises: a first portion of an information block in first resources of the broadcast channel that are reserved for the information block; and a second portion of the information block, comprising at least a subset of the first portion, in second resources of the broadcast channel that are different from the first resources; sending, to a wireless device, an indication of the at least one repetition method; and receiving information concerning one or more measurements, related to the second network node, made by the wireless device subsequent to acquiring the information broadcast by the second network node, the broadcast channel being a narrowband physical broadcast channel (NPBCH); the information block being a narrowband master information block (MIB-NB); the first resources comprising at least a portion of symbols that include the NPBCH; and the second resources comprising at least a portion of symbols that do not include the NPBCH. ### Claim 10 (depends on 9) The method of claim 9, wherein the indicated repetition method comprises repetition of a subset of the first portion of the MIB-NB in the second resources. ### Claim 11 (depends on 9) The method of claim 9, wherein: the first portion of the MIB-NB is coded at a first rate; the second portion comprises the first portion of the MIB-NB coded at a second rate greater than the first rate; and the indicated repetition method comprises repetition of the first portion of the MIB-NB coded at the second rate in the second resources. ### Claim 12 (depends on 9) A first network node in wireless communication network, the first network node comprising: power supply circuitry configured to supply power to the first network node; and processing circuitry configured to perform operations corresponding to the method of claim 9. ### Claim 13 (depends on 12) The first network node of claim 12, wherein: the broadcast channel is a narrowband physical broadcast channel (NPBCH); the information block is a narrowband master information block (MIB-NB); the first resources comprise at least a portion of symbols that include the NPBCH; and the second resources comprise at least a portion of symbols that do not include the NPBCH. ### Claim 14 (depends on 13) The first network node of claim 13, wherein the indicated repetition method comprises repetition of a subset of the first portion of the MIB-NB in the second resources. ### Claim 15 (depends on 13) The first network node of claim 13, wherein: the first portion of the MIB-NB is coded at a first rate; the second portion comprises the first portion of the MIB-NB coded at a second rate greater than the first rate; and the indicated repetition method comprises repetition of the first portion of the MIB-NB coded at the second rate in the second resources.