# US 2018/0027562 A1 · Method and apparatus for communication using a plurality of cells in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0027562 A1 - Document ID: US20180027562A1 - Status: Published application - Kind: A1 - Application number: 15/547,982 - Filed: 2016-02-15 - Published: 2018-01-25 - Earliest claimed: 2015-02-17 - Assignees: Samsung Electronics Co., Ltd.; Deutsche Telekom AG - Applicants: Samsung Electronics Co., Ltd.; Deutsche Telekom AG - Inventors: Joseph JEON; Jaroslav HOLIS; Seungjoo MAENG; Chanho AN; Seunghee HAN - Web page: https://patentgrep.com/patent/US20180027562A1 ## CPC - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04B 7/0413: MIMO systems - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 41/0803: Configuration setting - H04W 16/32: Hierarchical cell structures - H04W 48/16: Discovering, processing access restriction or access information - H04W 72/04: Wireless resource allocation - H04W 88/02: Terminal devices - H04W 88/08: Access point devices - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The present invention provides a cell configuration method of a base station in a mobile communication system supporting Carrier Aggregation (CA) which includes configuring a first cell consisting of at least two sectors formed with different antennas to a terminal, configuring a second cell consisting of at least two sectors formed with different antennas to the terminal, and communicating with the terminal through the first and second cells, wherein one of the first and second cells consists of sectors using same Physical Cell Identifier (PCID) and the other consists of sectors using different PCIDs. ## Claims ### Claim 1 A base station for cell configuration in a mobile communication system supporting Carrier Aggregation (CA), the base station comprising: a communication unit configured to transmit and receive signals; and a control unit configured to control transmitting configuration information for configuring a first cell to a terminal, transmitting configuration information for adding a second cell to the terminal and communicating with the terminal via the first cell and the second cell, wherein sectors of one of the first and second cells are set same Physical Cell Identifier (PCID) and sectors of the other one of the first and second cells are set different PCIDs. ### Claim 2 (depends on 1) The base station of claim 1, wherein each of the first and second cells includes at least two sectors, wherein the PCID is allocated to each sector. ### Claim 3 (depends on 1) The base station of claim 1, wherein one of the first and second cells is a primary cell (PCell) and the other is a secondary cell (SCell). ### Claim 4 (depends on 1) The base station of claim 1, wherein the control unit is configured to check mobility of the terminal and configure, when the terminal is mobile, the cell of which the sectors are set the same PCID as the PCell among the first and second cells. ### Claim 5 (depends on 1) The base station of claim 1, wherein the control unit is configured to determine mobility of the terminal based on at least one of channel state information and reference signal received power received from the terminal. ### Claim 6 (depends on 1) The base station of claim 1, wherein the control unit is configured to check location of the terminal and configure, when the terminal is located at cell/sector edge, the cell of which the sectors are set the same PCID as the PCell among the first and second cells. ### Claim 7 (depends on 1) The base station of claim 1, wherein the control unit is configured to select the PCell of the terminal based on at least one of per-cell control channel amount information, uplink resource use amount information, handover information, and load information. ### Claim 8 A terminal for cell configuration in the mobile communication supporting carrier aggregation (CA), the terminal comprising: a communication unit configured to transmit and receive signals; and a control unit configured to control receiving configuration information for configuring a first cell, receiving configuration information for adding a second cell and communicating via the first and second cells, wherein sectors of one of the first and second cells are set same Physical Cell Identifier (PCID) and sectors of the other one of the first and second cells are set different PCIDs. ### Claim 9 (depends on 8) The terminal of claim 8, wherein each of the first and second cells includes at least two sectors, wherein the PCID is allocated to each sector. ### Claim 10 (depends on 8) The terminal of claim 8, wherein the control unit is configured to control receiving primary cell (PCell) configuration information corresponding to mobility information of the terminal, wherein the PCell configuration information instructs, when the terminal is mobile based on the mobility information, to configure the cell set same PCID as the PCell among the first and second cells. ### Claim 11 (depends on 10) The terminal of claim 10, wherein the mobility information comprises at least one of channel state information and reference signal received power. ### Claim 12 (depends on 8) The terminal of claim 8, wherein the control unit is configured to control receiving primary cell (PCell) configuration information, wherein the PCell configuration information instructs, when the terminal is located at a cell/sector edge, to configure the cell set same PCID as the PCell among the first and second cells. ### Claim 13 (depends on 8) The terminal of claim 8, wherein a primary cell (PCell) of the terminal is selected based on at least one of per-cell control channel amount information, uplink resource use amount information, handover information, and load information. ### Claim 14 A method for cell configuration by a base station in a mobile communication system supporting Carrier Aggregation (CA), the method comprising: transmitting configuration information for configuring a first cell to a terminal; transmitting configuration information for adding a second cell to the terminal; and communicating with the terminal via the first cell and the second cell, wherein sectors of one of the first and second cells are set same Physical Cell Identifier (PCID) and sectors of the other one of the first and second cells are set different PCIDs. ### Claim 15 A method for cell configuration by a terminal in the mobile communication supporting carrier aggregation (CA), the terminal comprising: receiving configuration information for configuring a first cell; receiving configuration information for adding a second cell; and communicating via the first and second cells, wherein sectors of one of the first and second cells are set same Physical Cell Identifier (PCID) and sectors of the other one of the first and second cells are set different PCIDs.