# US 12,010,661 B2 · Long-term evolution compatible very narrow band design > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,661 B2 - Document ID: US12010661B2 - Status: Granted - Kind: B2 - Application number: 17/159,631 - Filed: 2021-01-27 - Published: 2021-05-20 - Granted: 2024-06-11 - Earliest claimed: 2015-06-16 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yongbin Wei; Durga Prasad Malladi; Hao Xu - Web page: https://patentgrep.com/patent/US12010661B2 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0037: {Inter-user or inter-terminal allocation} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - 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) ## Abstract Aspects of the present invention relate to wireless communications by a user equipment (UE), comprising, identifying resources in a narrowband region, the narrowband region spanning no more than a single resource block in a transmission time interval (TTI) and communicating with a base station using the identified resources. ## Claims ### Claim 1 A method for wireless communications by a user equipment (UE), comprising: receiving signaling of resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); receiving physical broadcast channel information on the signaled resources in the narrowband region; and performing system acquisition in the narrowband region based at least in part on the physical broadcast channel information received on the signaled resources. ### Claim 2 (depends on 1) The method of claim 1, wherein: the UE is of a first type; and the narrowband region is located within a wideband region of resources used for communications by UEs of a second type. ### Claim 3 (depends on 2) The method of claim 2, further comprising: receiving signaling of a resource block offset indicating a location of the narrowband region. ### Claim 4 (depends on 1) The method of claim 1, wherein: the UE is of a first type; and the narrowband region is located within a separate component carrier outside of a wideband region of resources used for communications by UEs of a second type. ### Claim 5 (depends on 1) The method of claim 1, further comprising: receiving at least one of synchronization signals or cell-specific reference signals from a network entity on the signaled resources. ### Claim 6 (depends on 1) The method of claim 1, further comprising transmitting a physical random access channel (PRACH) on the signaled resources. ### Claim 7 (depends on 1) The method of claim 1, wherein the UE supports time division multiplexing of at least one narrowband downlink control channel and at least one narrowband downlink shared channel across multiple TTIs. ### Claim 8 (depends on 1) The method of claim 1, wherein at least one control channel and at least one data channel are time division multiplexed within a given TTI. ### Claim 9 (depends on 1) The method of claim 1, wherein at least one control channel and at least one data channel are frequency division multiplexed within a given TTI. ### Claim 10 (depends on 1) The method of claim 1, further comprising: receiving a physical downlink control channel (PDCCH) on the signaled resources. ### Claim 11 (depends on 1) The method of claim 1, further comprising: receiving a physical downlink shared channel (PDSCH) on the signaled resources. ### Claim 12 (depends on 1) The method of claim 1, wherein: at least some TTIs are available for physical uplink control channel (PUCCH) transmissions; and at least some TTIs are available for physical random access channel (PRACH) transmissions. ### Claim 13 (depends on 1) The method of claim 1, further comprising: sending one or more transmissions to a network entity on a narrowband uplink shared channel. ### Claim 14 (depends on 1) The method of claim 1, wherein the UE supports time division multiplexing to occupy 12 tones of a resource block within a single grant for each resource block. ### Claim 15 A method for wireless communications by a network entity, comprising: signaling resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); and using the signaled resources for system acquisition in the narrowband region by at least one user equipment (UE), wherein the using comprises transmitting physical broadcast channel information on the signaled resources. ### Claim 16 (depends on 15) The method of claim 15, wherein: the at least one UE is of a first type; and the narrowband region is located within a wideband region of resources used for communications by UEs of a second type. ### Claim 17 (depends on 16) The method of claim 16, further comprising: sending signaling, to the at least one UE, of a resource block offset indicating a location of the narrowband region. ### Claim 18 (depends on 15) The method of claim 15, wherein: the at least one UE is of a first type; and the narrowband region is located within a separate component carrier outside of a wideband region of resources used for communications by UEs of a second type. ### Claim 19 (depends on 15) The method of claim 15, wherein using the signaled resources comprises: transmitting at least one of synchronization signals or cell-specific reference signals on the signaled resources. ### Claim 20 (depends on 15) The method of claim 15, further comprising: receiving a physical random access channel (PRACH) on the signaled resources. ### Claim 21 (depends on 15) The method of claim 15, wherein the at least one UE supports time division multiplexing of at least one narrowband downlink control channel and at least one narrowband downlink shared channel across multiple TTIs. ### Claim 22 (depends on 15) The method of claim 15, wherein at least one control channel and at least one data channel are time division multiplexed within a given TTI. ### Claim 23 (depends on 15) The method of claim 15, wherein at least one control channel and at least one data channel are frequency division multiplexed within a given TTI. ### Claim 24 (depends on 15) The method of claim 15, further comprising: transmitting a physical downlink control channel (PDCCH) on the signaled resources. ### Claim 25 (depends on 15) The method of claim 15, further comprising: transmitting a physical downlink shared channel (PDSCH) on the signaled resources. ### Claim 26 (depends on 15) The method of claim 15, wherein: at least some TTIs are available for receiving physical uplink control channel (PUCCH) transmissions; and at least some TTIs are available for receiving physical random access channel (PRACH) transmissions. ### Claim 27 (depends on 15) The method of claim 15, further comprising: receiving one or more transmissions from the at least one UE on a narrowband uplink shared channel. ### Claim 28 A user equipment (UE) for wireless communications, comprising: at least one processor; and a memory coupled to the at least one processor for storing instructions, the instructions executable by the at least one processor to cause the UE to: receive signaling of resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); receive physical broadcast channel information on the signaled resources in the narrowband region; and perform system acquisition in the narrowband region based at least in part on the physical broadcast channel information received on the signaled resources. ### Claim 29 An apparatus for wireless communications, comprising: at least one processor; and a memory coupled to the at least one processor for storing instructions, the instructions executable by the at least one processor to cause the apparatus to: signal resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); and use the signaled resources for system acquisition in the narrowband region by at least one user equipment (UE), wherein the use comprises transmit physical broadcast channel information on the signaled resources. ### Claim 30 A user equipment (UE) for wireless communications, comprising: means for receiving signaling of resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); means for receiving physical broadcast channel information on the signaled resources in the narrowband region; and means for performing system acquisition in the narrowband region based at least in part on the physical broadcast channel information received on the signaled resources. ### Claim 31 An apparatus for wireless communications, comprising: means for signaling resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); and means for using the signaled resources for system acquisition in the narrowband region by at least one user equipment (UE), wherein the means for using comprises means for transmitting physical broadcast channel information on the signaled resources. ### Claim 32 A non-transitory computer-readable medium for wireless communications by a user equipment (UE), comprising: code to receive signaling of resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); code to receive physical broadcast channel information on the signaled resources in the narrowband region; and code to perform system acquisition in the narrowband region based at least in part on the physical broadcast channel information received on the signaled resources. ### Claim 33 A non-transitory computer-readable medium for wireless communications, comprising: code to signal resources in a narrowband region, the narrowband region spanning no more than a single 180 kilohertz resource block in a transmission time interval (TTI); and code to use the signaled resources for system acquisition in the narrowband region by at least one user equipment (UE), wherein the code to use comprises code to transmit physical broadcast channel information on the signaled resources.