# US 9,883,428 B2 · Wireless terminals, base stations, communication systems, communication methods, and integrated circuits > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,883,428 B2 - Document ID: US9883428B2 - Status: Granted - Kind: B2 - Application number: 14/642,343 - Filed: 2015-03-09 - Published: 2016-07-21 - Granted: 2018-01-30 - Earliest claimed: 2015-01-16 - Assignees: Sharp Kabushiki Kaisha - Applicants: Sharp Kabushiki Kaisha - Inventors: Katsunari Uemura; Shohei Yamada; Yasuyuki Kato; Hidekazu Tsuboi - Web page: https://patentgrep.com/patent/US9883428B2 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 36/00837: {Determination of triggering parameters for hand-off} - H04W 48/20: Selecting an access point - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Wireless terminals, base stations, telecommunications systems, telecommunications methods, and integrated circuits whereby efficient selecting of network cells in which terminals are camped are made available. A base station includes an information element that relates to cell reselection, which indicates whether each neighboring cell is a coverage-enhancement cell, in system information on the cells that support coverage enhancement, and transmits the system information, and a terminal, in a case where a serving cell is a coverage-enhancement cell, performs, based on system information that relates to cell reselection, a cell-reselection using cell-reselection parameters that relate to the coverage-enhancement cells. ## Claims ### Claim 1 A terminal configured to connect with a base station, the terminal comprising instructions executable by a processor of the terminal to: perform an inter-frequency cell-reselection using cell-reselection parameters related to enhanced coverage and applied to neighboring cells on different frequencies, wherein the cell-reselection parameters include a second minimum required reception level Qrxlevmin_ce which is independent of a first minimum required reception level Qrxlevmin and a second minimum required quality level Qqualmin_ce which is independent of a first minimum required quality level Qqualmin, the first minimum required reception level Qrxlevmin and the first minimum required quality level Qqualmin are included in first system information which is transmitted with a first number of repetitions, and the second minimum required reception level Qrxlevmin_ce and the second minimum required quality level Qqualmin_ce are included in second system information which is transmitted with a second number of repetitions which is independent of the first number of repetitions. ### Claim 2 (depends on 1) The terminal in claim 1, comprising instructions executable by the processor of the terminal to perform the cell-reselection using the cell-reselection parameters provided to each neighboring cell. ### Claim 3 A base station configured to connect with terminals, the base station comprising instructions executable by a processor of the base station to: include information which includes cell-reselection parameters related to enhanced coverage and applied to each neighboring cell on different frequencies, in system information, wherein the inter-frequency cell-reselection using the cell-reselection parameters related to enhanced coverage is performed by terminals, and transmit the system information, wherein the cell-reselection parameters include a second minimum required reception level Qrxlevmin_ce which is independent of a first minimum required reception level Qrxlevmin_ce and a second minimum required quality level Qqualmin_ce which is independent of a first minimum required quality level Qqualmin, the first minimum required reception level Qrxlevmin and the first minimum required quality level Qqualmin are included in first system information which is transmitted with a first number of repetitions, and the second minimum required reception level Qrxlevmin_ce and the second minimum required quality level Qqualmin_ce are included in second system information which is transmitted with a second number of repetitions which is independent of the first number of repetitions. ### Claim 4 A telecommunications method for a terminal connected with a base station, the telecommunications method including at least: performing an inter-frequency cell-reselection using cell-reselection parameters related to enhanced coverage and applied to neighboring cells on different frequencies, wherein the cell-reselection parameters include a second minimum required reception level Qrxlevmin_ce which is independent of a first minimum required reception level Qrxlevmin and a second minimum required quality level Qrxlevmin_ce which is independent of a first minimum required quality level Qqualmin, the first minimum required reception level Qrxlevmin and the first minimum required quality level Qqualmin are included in first system information which is transmitted with a first number of repetitions, and the second minimum required reception level Qrxlevmin_ce and the second minimum required quality level Qqualmin_ce are included in second system information which is transmitted with a second number of repetitions which is independent of the first number of repetitions. ### Claim 5 A telecommunications method for a base station configured to connect with terminals, the communications method including at least: including information which includes cell-reselection parameters related to enhanced coverage and applied to each neighboring cell on different frequencies, in system information, wherein the inter-frequency cell-reselection using the cell-reselection parameters related to enhanced coverage is performed by terminals, and transmitting the system information, wherein the cell-reselection parameters include a second minimum required reception level Qrxlevmin_ce which is independent of a first minimum required reception level Qrxlevmin and a second minimum required quality level Qrxlevmin_ce which is independent of a first minimum required quality level Qqualmin, the first minimum required reception level Qrxlevmin and the first minimum required quality level Qqualmin are included in first system information which is transmitted with a first number of repetitions, and the second minimum required reception level Qrxlevmin_ce and the second minimum required quality level Qqualmin_ce are included in second system information which is transmitted with a second number of repetitions which is independent of the first number of repetitions. ### Claim 6 An integrated circuit installed in a terminal configured to connect with a base station, the integrated circuit executing in the terminal at least: a function of performing an inter-frequency cell-reselection using cell-reselection parameters related to enhanced coverage and applied to neighboring cells on different frequencies, wherein the cell-reselection parameters include a second minimum required reception level Qrxlevmin_ce which is independent of a first minimum required reception level Qrxlevmin and a second minimum required quality level Qrxlevmin_ce which is independent of a first minimum required quality level Qqualmin, the first minimum required reception level Qrxlevmin and the first minimum required quality level Qqualmin are included in first system information which is transmitted with a first number of repetitions, and the second minimum required reception level Qrxlevmin_ce and the second minimum required quality level Qqualmin_ce are included in second system information which is transmitted with a second number of repetitions which is independent of the first number of repetitions. ### Claim 7 An integrated circuit installed in a base station configured to connect with terminals, the integrated circuit executing in the base station at least: a function of including information which includes cell-reselection parameters related to enhanced coverage and applied to each neighboring cell on different frequencies, in system information, wherein the inter-frequency cell-reselection using the cell-reselection parameters related to enhanced coverage is performed by terminals, and a function of transmitting the system information, wherein the cell-reselection parameters include a second minimum required reception level Qrxlevmin_ce which is independent of a first minimum required reception level Qrxlevmin and a second minimum required quality level Qrxlevmin_ce which is independent of a first minimum required quality level Qqualmin, the first minimum required reception level Qrxlevmin and the first minimum required quality level Qqualmin are included in first system information which is transmitted with a first number of repetitions, and the second minimum required reception level Qrxlevmin_ce and the second minimum required quality level Qqualmin_ce are included in second system information which is transmitted with a second number of repetitions which is independent of the first number of repetitions.