# US 2018/0324679 A1 · Method and apparatus for signaling of system information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0324679 A1 - Document ID: US20180324679A1 - Status: Published application - Kind: A1 - Application number: 15/970,611 - Filed: 2018-05-03 - Published: 2018-11-08 - Earliest claimed: 2017-05-05 - Assignees: Motorola Mobility LLC - Applicants: Motorola Mobility LLC - Inventors: Prateek Basu Mallick; Joachim Lohr; Ravi Kuchibhotla - Web page: https://patentgrep.com/patent/US20180324679A1 ## CPC - H04W 48/10: using broadcasted information - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 48/12: using downlink control channel - H04W 48/14: using user query {or user detection} - H04W 72/20: Control channels or signalling for resource management - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A method and apparatus provide for signaling of system information. Minimum system information including at least cell access information to establish access with a cell can be received, the minimum system information also including at least one indication indicating whether particular system information listed in scheduling information in the minimum system information is being broadcasted or not being broadcasted. A system information request message requesting transmission of non-minimum system information if the at least one indication indicates the non-minimum system information is not being broadcasted can be transmitted, where the non-minimum system information is not included in the minimum system information. The non-minimum system information either in response to the transmitting of the system information request message or in response to the at least one indication indicating whether particular system information is being broadcasted can be received. ## Claims ### Claim 1 A method, the method comprising: receiving minimum system information including at least cell access information to establish access with a cell, the minimum system information also including at least one indication indicating whether particular system information listed in scheduling information in the minimum system information is being broadcasted or not being broadcasted; transmitting a system information request message requesting transmission of non-minimum system information if the at least one indication indicates the non-minimum system information is not being broadcasted, where the non-minimum system information is not included in the minimum system information; and receiving the non-minimum system information either in response to the transmitting of the system information request message or in response to the at least one indication indicating whether particular system information is being broadcasted. ### Claim 2 (depends on 1) The method of claim 1, wherein the at least one indication is a Boolean flag. ### Claim 3 (depends on 1) The method of claim 1, wherein the at least one indication comprises a first indication, wherein the minimum system information further includes a second indication indicating whether the particular system information listed in the scheduling information in the minimum system information is regularly broadcast or provided on-demand; and wherein transmitting the system information request message comprises transmitting the system information request message in response to the second indication indicating that the particular on-demand system information not being currently broadcast and the second indication indicating the particular system information is provided on-demand. ### Claim 4 (depends on 1) The method of claim 1, wherein the system information comprises a system information message, where the system information request message is a radio resource control signaling message and comprises a list of one or more of a unique system information message for the requested non-minimum system information. ### Claim 5 (depends on 1) The method of claim 1, further comprising receiving particular non-minimum system information until an end of a current modification period in which the particular non-minimum system information is being indicated as being broadcasted. ### Claim 6 (depends on 1) The method of claim 1, wherein the system information request message comprises a BITMAP, where each bit in the BITMAP that each correspond to a unique system information message for the requested non-minimum system information. ### Claim 7 (depends on 6) The method of claim 6, wherein each bit of the BITMAP indicates a different system information message or a different system information block. ### Claim 8 (depends on 6) The method of claim 6, wherein a leftmost bit of the BITMAP corresponds to a lowest valued unique system information message type requested, a rightmost bit of the BITMAP corresponds to a highest valued unique system information message type requested, and bits ordered from the leftmost bit to the rightmost bit being ordered in accordance with increased valued minimum information requested. ### Claim 9 (depends on 6) The method of claim 6, wherein, each bit in the BITMAP corresponds to particular system information irrespective of if the particular system information is regularly broadcasted or on-demand. ### Claim 10 (depends on 6) The method of claim 6, wherein each bit in the BITMAP correspond to only particular system information that is indicated as being provided on-demand. ### Claim 11 (depends on 6) The method of claim 6, wherein each bit in the BITMAP correspond to only particular system information that is indicated as being provided on-demand and not being currently provided. ### Claim 12 (depends on 6) The method of claim 6, further comprising setting only selected bits of the BITMAP, where the selected bits indicate system information that is not being broadcast and required. ### Claim 13 An apparatus, comprising: a transceiver to receive minimum system information including at least cell access information to establish access with a cell, the minimum system information also including at least one indication indicating whether particular system information listed in scheduling information in the minimum system information is being broadcasted or not being broadcasted, wherein the transceiver transmits a system information request message requesting transmission of non-minimum system information if the at least one indication indicates the non-minimum system information is not being broadcasted, where the non-minimum system information is not included in the minimum system information; and wherein the transceiver receives the non-minimum system information either in response to the transmitting of the system information request message or in response to the at least one indication indicating whether particular system information is being broadcasted. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the at least one indication is a Boolean flag. ### Claim 15 (depends on 13) The apparatus of claim 13, wherein the at least one indication comprises a first indication, wherein the minimum system information further includes a second indication indicating whether the particular system information listed in the scheduling information in the minimum system information is regularly broadcast or provided on-demand; and wherein transmitting the system information request message comprises transmitting the system information request message in response to the second indication indicating that the particular on-demand system information not being currently broadcast and the second indication indicating the particular system information is provided on-demand. ### Claim 16 (depends on 13) The apparatus of claim 13, wherein the system information comprises a system information message, where the system information request message is a radio resource control signaling message and comprises a list of one or more of a unique system information message for the requested non-minimum system information. ### Claim 17 (depends on 13) The apparatus of claim 13, wherein the transceiver further receives particular non-minimum system information until an end of a current modification period in which the particular non-minimum system information is being indicated as being broadcasted. ### Claim 18 (depends on 13) The apparatus of claim 13, wherein the system information request message comprises a BITMAP, where each bit in the BITMAP that each correspond to a unique system information message for the requested non-minimum system information. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein each bit of the BITMAP indicates a different system information message or a different system information block. ### Claim 20 (depends on 18) The apparatus of claim 18, wherein a leftmost bit of the BITMAP corresponds to a lowest valued unique system information message type requested, a rightmost bit of the BITMAP corresponds to a highest valued unique system information message type requested, and bits ordered from the leftmost bit to the rightmost bit being ordered in accordance with increased valued minimum information requested.