# US 2022/0046586 A1 · Coverage-level-based paging carrier selection techniques > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0046586 A1 - Document ID: US20220046586A1 - Status: Published application - Kind: A1 - Application number: 17/444,599 - Filed: 2021-08-06 - Published: 2022-02-10 - Earliest claimed: 2020-08-06 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Mungal Singh DHANDA; Umesh PHUYAL; Alberto RICO ALVARINO; Amer CATOVIC; Bharat SHRESTHA; Ayan SENGUPTA - Web page: https://patentgrep.com/patent/US20220046586A1 ## CPC - H04W 68/02: Arrangements for increasing efficiency of notification or paging channel - H04W 48/18: Selecting a network or a communication service - H04W 48/12: using downlink control channel - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Wireless communications systems and methods related to coverage-level-based paging carrier selection are provided. In some aspects, a method of wireless communication performed by a user equipment includes receiving, from a base station, a first indication of one or more paging carriers, the first indication indicating for a paging carrier of the one or more paging carriers, a coverage level supported by the paging carrier; and receiving, from the base station, a paging message via the paging carrier based on a match between the coverage level supported by the paging carrier and a coverage level of the user equipment. ## Claims ### Claim 1 A method of wireless communication, the method comprising: receiving, from a base station, a first indication of one or more paging carriers, the first indication indicating, for a paging carrier of the one or more paging carriers, a coverage level supported by the paging carrier; and receiving, from the base station, a paging message via the paging carrier based on a match between the coverage level supported by the paging carrier and a coverage level of the user equipment. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, the first indication via a system information block (SIB). ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, the first indication via at least one of a downlink common configuration message or a paging control channel configuration message. ### Claim 4 (depends on 1) The method of claim 1, wherein each paging carrier of the plurality of paging carriers supports a single paging coverage level. ### Claim 5 (depends on 1) The method of claim 1, wherein the coverage level of the user equipment is based on a narrow-band physical random access channel (NPRACH) threshold and a reference signal receive power (RSRP). ### Claim 6 (depends on 1) The method of claim 1, wherein the coverage level of the user equipment is based on a physical random access channel (PRACH) threshold and a reference signal receive power (RSRP). ### Claim 7 (depends on 1) The method of claim 1, wherein the coverage level of the user equipment is based on a paging threshold and a reference signal receive power (RSRP). ### Claim 8 (depends on 1) The method of claim 1, wherein the coverage level of the user equipment is based on a coverage restriction of the user equipment. ### Claim 9 (depends on 1) The method of claim 1, further comprising: transmitting, to the base station, a second indication indicating that the user equipment supports paging carrier selection based on coverage level; and receiving, from the base station, a third indication indicating the coverage level of the user equipment. ### Claim 10 (depends on 1) The method of claim 1, wherein the paging carrier is one of a subset of the plurality of paging carriers supporting the coverage level of the user equipment. ### Claim 11 (depends on 10) The method of claim 10, further comprising: selecting the paging carrier from the subset of the plurality of paging carriers supporting the coverage level of the user equipment based on a discontinuous reception (DRX) cycle of the user equipment. ### Claim 12 (depends on 11) The method of claim 11, wherein the indication indicates a DRX cycle length for each of the plurality of paging carriers. ### Claim 13 (depends on 1) The method of claim 1, wherein the user equipment is a narrow-band internet of things (NB-IoT) device or an enhanced machine-type communication (eMTC) device. ### Claim 14 A user equipment, comprising: a processor; and a transceiver coupled to the processor and configured to: receive, from a base station, a first indication of one or more paging carriers, the first indication indicating for a paging carrier of the one or more paging carriers, a coverage level supported by the paging carrier; and receive, from the base station, a paging message via the paging carrier based on a match between the coverage level supported by the paging carrier and a coverage level of the user equipment. ### Claim 15 (depends on 14) The user equipment of claim 14, wherein the transceiver is further configured to: receive, from the base station, the first indication via a system information block (SIB). ### Claim 16 (depends on 14) The user equipment of claim 14, wherein the transceiver is further configured to: receive, from the base station, the first indication via at least one of a downlink common configuration message or a paging control channel configuration message. ### Claim 17 (depends on 14) The user equipment of claim 14, wherein each paging carrier of the plurality of paging carriers supports a single paging coverage level. ### Claim 18 (depends on 14) The user equipment of claim 14, wherein the coverage level of the user equipment is based on a narrow-band physical random access channel (NPRACH) threshold and a reference signal receive power (RSRP). ### Claim 19 (depends on 14) The user equipment of claim 14, wherein the coverage level of the user equipment is based on a physical random access channel (PRACH) threshold and a reference signal receive power (RSRP). ### Claim 20 (depends on 14) The user equipment of claim 14, wherein the coverage level of the user equipment is based on a paging threshold and a reference signal receive power (RSRP). ### Claim 21 (depends on 14) The user equipment of claim 14, wherein the coverage level of the user equipment is based on a coverage restriction of the user equipment. ### Claim 22 (depends on 14) The user equipment of claim 14, wherein the transceiver is further configured to: transmit, to the base station, a second indication indicating that the user equipment supports paging carrier selection based on coverage level; and receive, from the base station, a third indication indicating the coverage level of the user equipment. ### Claim 23 (depends on 14) The user equipment of claim 14, wherein the paging carrier is one of a subset of the plurality of paging carriers supporting the coverage level of the user equipment. ### Claim 24 (depends on 23) The user equipment of claim 23, wherein the transceiver is further configured to: select the paging carrier from the subset of the plurality of paging carriers supporting the coverage level of the user equipment based on a discontinuous reception (DRX) cycle of the user equipment. ### Claim 25 (depends on 24) The user equipment of claim 24, wherein the indication indicates a DRX cycle length for each of the plurality of paging carriers. ### Claim 26 (depends on 14) The user equipment of claim 14, wherein the user equipment is a narrow-band internet of things (NB-IoT) device or an enhanced machine-type communication (eMTC) device. ### Claim 27 A method of wireless communication performed by a base station, the method comprising: transmitting, to a user equipment, a first indication of one or more paging carriers, the first indication indicating for a paging carrier of the one or more paging carriers, a coverage level supported by the paging carrier; and transmitting, to the user equipment, a paging message via the paging carrier based on a match between the coverage level supported by the paging carrier and a coverage level of the user equipment. ### Claim 28 (depends on 27) The method of claim 27, further comprising: receiving, from the user equipment, a second indication indicating that the user equipment supports paging carrier selection based on coverage level; and transmitting, to the user equipment, a third indication indicating the coverage level of the user equipment. ### Claim 29 A base station, comprising: a processor; and a transceiver coupled to the processor and configured to: a transceiver configured to: transmit, to a user equipment, a first indication of one or more paging carriers, the first indication indicating for a paging carrier of the one or more paging carriers, a coverage level supported by the paging carrier; and transmit, to the user equipment, a paging message via the paging carrier based on a match between the coverage level supported by the paging carrier and a coverage level of the user equipment. ### Claim 30 (depends on 29) The base station of claim 29, wherein the coverage level of the user equipment is based on a reference signal receive power (RSRP) and one of a narrow-band physical random access channel (NPRACH) threshold, a narrow-band physical random access channel (NPRACH) threshold, or a paging threshold.