# US 2014/0194117 A1 · Device and method for selecting a cell according to a speed of a terminal in a mobile communication network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194117 A1 - Document ID: US20140194117A1 - Status: Published application - Kind: A1 - Application number: 14/238,316 - Filed: 2012-08-13 - Published: 2014-07-10 - Earliest claimed: 2011-08-12 - Assignees: Samsung Electronics Co., Ltd. - Inventors: Kyeong In Jeong; Soeng Hun Kim; Himke Van Der Velde - Web page: https://patentgrep.com/patent/US20140194117A1 ## CPC - H04W 48/20: Selecting an access point - H04W 36/324: {by mobility data, e.g. speed data} - H04W 52/0254: {detecting a user operation or a tactile contact or a motion of the device} - H04W 36/04: Reselecting a cell layer in multi-layered cells - H04W 36/36: by user or terminal equipment - H04W 48/04: based on user or terminal location or mobility data, e.g. moving direction, speed - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract The present invention defines an efficient method for (re)selecting a cell according to a speed of a terminal in a HetNet where cells having various regions such as macro cells, pico cells and femto cells are arranged in the same frequency band in a mobile communication system. A cell selection control method of a terminal in a mobile communication system, according to an embodiment of the present invention, comprises a step of receiving, from a base station, cell list information for not allowing a terminal moving at a high speed to select a cell and a step of setting the terminal so that cells included in the cell list information are considered or not considered to be targets of selection or reselection when the terminal moves at the high speed. According to the present invention, in a network consisting of various types of cells using the same frequency band, the terminal can determine whether to select or reselect a cell according to the speed of the terminal. That is, the terminal moving at the high speed does not select or reselect a frequent service cell, thereby efficiently performing the cell selection or reselection. Further, power consumption of the terminal can be reduced. ## Claims ### Claim 1 A cell selection control method of a terminal in a mobile communication system, the method comprising: receiving a cell list for the terminal in a high mobility to skip selecting a cell from a base station; and configuring, when the terminal is in the high mobility, the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates. ### Claim 2 (depends on 1) The method of claim 1, wherein the receiving of the cell list comprises receiving a cell selection indicator indicating whether to perform the configuring of the terminal, and the configuring of the terminal comprises configuring, when the terminal is in the high mobility and the cell selection indicator indicates to perform the configuration, the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates. ### Claim 3 (depends on 2) The method of claim 2, wherein the cell selection indicator is a 1-bit indicator. ### Claim 4 (depends on 2) The method of claim 2, wherein the cell selection indicator is a bitmap indicating a type of mobility of the terminal, bitmap instances correspond to respective mobility levels. ### Claim 5 (depends on 1) The method of claim 1, wherein the cell list comprises Physical Cell Identifiers (PCIs). ### Claim 6 (depends on 2) The method of claim 2, wherein the cell list and the cell selection identifier are received in system information. ### Claim 7 A cell selection control method of a base station in a mobile communication system, the method comprising: generating a cell list configuring, when a terminal is in the high mobility, the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates; and transmitting the cell list to the terminal. ### Claim 8 (depends on 7) The method of claim 7, wherein the generating of the cell list comprises generating a cell selection indicator indicating whether to perform configuring the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates, and the transmitting of the cell list comprises transmitting the cell selection identifier to the terminal. ### Claim 9 (depends on 7) The method of claim 7, wherein the cell list comprises Physical Cell Identifiers (PCIs). ### Claim 10 A cell selection control apparatus of a terminal in a mobile communication system, the apparatus comprises: a transceiver which receives data and a control signal from a base station; an RRC message generation/interpretation unit which interprets cell list in the received control signal; a mobility management unit which manages mobility of the terminal; and a cell selection unit which configures, when the terminal is in the high mobility, the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates. ### Claim 11 (depends on 11) The apparatus of claim 11, wherein the RRC message generation/interpretation unit interprets the cell selection indicator, the cell selection configures, when the terminal is in the high mobility and the cell selection indicator indicates to perform the configuration, the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates. ### Claim 12 (depends on 10) The apparatus of claim 10, wherein the cell list comprises Physical Cell Identifiers (PCIs). ### Claim 13 A cell selection control apparatus of a base station in a mobile communication system, the apparatus comprises: a transceiver which transmits data and a control signal to a terminal; an RRC message generation/interpretation unit which generates a cell list configuring, when a terminal is in the high mobility, the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates; and a control unit which controls transmitting the cell list to the terminal. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the RRC message generation/interpretation unit generates a cell selection indicator indicating whether to perform configuring the terminal to do one of regarding cells listed in the cell list as cell (re)selection candidates and ruling out the cells listed in the cell list from the cell (re)selection candidates, and the control unit controls transmitting the cell selection identifier to the terminal.