# US 12,120,647 B2 · Synchronization signal block and remaining minimum system information integration in unlicensed systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,120,647 B2 - Document ID: US12120647B2 - Status: Granted - Kind: B2 - Application number: 17/512,485 - Filed: 2021-10-27 - Published: 2022-02-17 - Granted: 2024-10-15 - Earliest claimed: 2018-08-17 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jing Sun; Xiaoxia Zhang - Web page: https://patentgrep.com/patent/US12120647B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04J 3/1694: {Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers (Passive Optical Networks H04Q11/0062)} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 48/12: using downlink control channel - H04W 56/001: {Synchronization between nodes} - H04W 56/0015: {one node acting as a reference for the others} - H04W 72/56: based on priority criteria - H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA] - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) ## Abstract Methods, systems, and devices for wireless communications are described. A base station and user equipment (UE) may implement techniques to integrate remaining minimum system information (RMSI) and synchronization signal block (SSB) delivery in a shared radio frequency spectrum band. For example, the base station may transmit SSBs and corresponding RMSI transmissions in a same transmission opportunity (TxOP) and configure resource allocations to reduce or eliminate transmission gaps. For example, the SSBs and the corresponding RMSI transmissions may be transmitted after a single, successful listen-before-talk (LBT) procedure. For each SSB, the associated RMSI control resources and RMSI shared channel resources may be nearby or continuous in time such that the SSB, control resource set, and the RMSI downlink shared channel signal are transmitted as a package. ## Claims ### Claim 1 A method for wireless communications at a network device, comprising: transmitting, via a control resource set, a grant for a downlink shared channel, the downlink shared channel carrying system information; transmitting a synchronization signal block (SSB) of an SSB burst in a slot, wherein a physical broadcast channel of the SSB indicates a configuration for the downlink shared channel carrying system information, and the control resource set is transmitted adjacent to a previous SSB of the SSB burst and before the transmitted SSB; and transmitting a downlink shared channel signal via the downlink shared channel through a last symbol period of the slot using all resource blocks of a bandwidth part, wherein the control resource set, the transmitted SSB, and the downlink shared channel signal are transmitted in a continuous time domain transmission, and wherein the continuous time domain transmission is adjacent in time to a previous continuous time domain transmission comprising the previous SSB and a next continuous time domain transmission including a next SSB. ### Claim 2 (depends on 1) The method of claim 1, wherein transmitting the grant comprises: transmitting the grant in a first symbol period and a second symbol period before the transmitted SSB, wherein the first and second symbol periods are adjacent to the previous SSB in time. ### Claim 3 (depends on 1) The method of claim 1, further comprising: transmitting the downlink shared channel signal starting from a first symbol period of the transmitted SSB. ### Claim 4 (depends on 1) The method of claim 1, further comprising: transmitting the downlink shared channel signal starting from a first symbol period after the transmitted SSB. ### Claim 5 (depends on 4) The method of claim 4, wherein the downlink shared channel carrying system information is time division multiplexed with the transmitted SSB. ### Claim 6 (depends on 1) The method of claim 1, further comprising: transmitting the downlink shared channel starting from a first symbol period of the transmitted SSB until a first symbol period of the next SSB. ### Claim 7 (depends on 1) The method of claim 1, wherein the downlink shared channel signal comprises remaining minimum system information (RMSI). ### Claim 8 An apparatus for wireless communications at a network device, comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory, wherein the instructions are executable by the processor to cause the apparatus to: transmit, via a control resource set, a grant for a downlink shared channel, the downlink shared channel carrying system information; transmit a synchronization signal block (SSB) of an SSB burst in a slot, wherein a physical broadcast channel of the SSB indicates a configuration for the downlink shared channel carrying system information, and the control resource set is transmitted adjacent to a previous SSB of the SSB burst and before the transmitted SSB; and transmit a downlink shared channel signal via the downlink shared channel through a last symbol period of the slot using all resource blocks of a bandwidth part, wherein the control resource set, the transmitted SSB, and the downlink shared channel signal are transmitted in a continuous time domain transmission, and wherein the continuous time domain transmission is adjacent in time to a previous continuous time domain transmission comprising the previous SSB and a next continuous time domain transmission including a next SSB. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the instructions to transmit the grant are further executable by the processor to cause the apparatus to: transmit the grant in a first symbol period and a second symbol period before the transmitted SSB, wherein the first and second symbol periods are adjacent to the previous SSB in time. ### Claim 10 (depends on 8) The apparatus of claim 8, wherein the instructions are further executable by the processor to cause the apparatus to: transmit the downlink shared channel signal starting from a first symbol period of the transmitted SSB. ### Claim 11 (depends on 8) The apparatus of claim 8, wherein the instructions are further executable by the processor to cause the apparatus to: transmit the downlink shared channel signal starting from a first symbol period after the transmitted SSB. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the downlink shared channel carrying system information is time division multiplexed with the transmitted SSB. ### Claim 13 (depends on 8) The apparatus of claim 8, wherein the instructions are further executable by the processor to cause the apparatus to: transmit the downlink shared channel starting from a first symbol period of the transmitted SSB until a first symbol period of the next SSB. ### Claim 14 (depends on 8) The apparatus of claim 8, wherein: the downlink shared channel signal comprises remaining minimum system information (RMSI). ### Claim 15 An apparatus for wireless communications at a network device, comprising: means for transmitting, via a control resource set, a grant for a downlink shared channel, the downlink shared channel carrying system information; means for transmitting a synchronization signal block (SSB) of an SSB burst in a slot, wherein a physical broadcast channel of the SSB indicates a configuration for the downlink shared channel carrying system information, and the control resource set is transmitted adjacent to a previous SSB of the SSB burst and before the transmitted SSB; and means for transmitting a downlink shared channel signal via the downlink shared channel through a last symbol period of the slot using all resource blocks of a bandwidth part, wherein the control resource set, the transmitted SSB, and the downlink shared channel signal are transmitted in a continuous time domain transmission, and wherein the continuous time domain transmission is adjacent in time to a previous continuous time domain transmission comprising the previous SSB and a next continuous time domain transmission including a next SSB. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the means for transmitting the grant comprises: means for transmitting the grant in a first symbol period and a second symbol period before the transmitted SSB, wherein the first and second symbol periods are adjacent to the previous SSB in time. ### Claim 17 (depends on 15) The apparatus of claim 15, further comprising: means for transmitting the downlink shared channel signal starting from a first symbol period of the transmitted SSB. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the downlink shared channel carrying system information is time division multiplexed with the transmitted SSB.