# US 2018/0324807 A1 · Communications in a Wireless Network for Carrier Selection and Switching > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0324807 A1 - Document ID: US20180324807A1 - Status: Published application - Kind: A1 - Application number: 16/036,015 - Filed: 2018-07-16 - Published: 2018-11-08 - Earliest claimed: 2014-12-19 - Assignees: Futurewei Technologies, Inc. - Applicants: Futurewei Technologies, Inc. - Inventors: Jialing LIU; Weimin XIAO; Qian CHENG - Web page: https://patentgrep.com/patent/US20180324807A1 ## CPC - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L 5/00: Arrangements affording multiple use of the transmission path - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04W 24/02: Arrangements for optimising operational condition - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0057: {Physical resource allocation for CQI} - H04W 72/27: between access points - 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 Communications in a wireless network for carrier Selection and switching are provided. A terminal in the wireless network is simultaneously receiving data on at most m carriers. A base station in the wireless network sends an activation command associated with more than m carriers to the terminal. The terminal activates the more than m carriers. Then the base station selects a first subset from the activated carriers, and sends a first monitoring command associated with the first subset via a first physical-layer signaling to the terminal. When load and/or interference situations are changed, the base station selects a second subset from the activated carriers, and sends a second monitoring command associated with the second subset via a second physical-layer signaling to the terminal, wherein the first subset is different from the second subset. ## Claims ### Claim 1 A method for communicating with a terminal by a base station in a wireless network, wherein the terminal is capable of simultaneously receiving data on at most m carriers, the method comprising: sending an activation command associated with more than m carriers to the terminal; selecting a first subset from the more than m carriers, wherein a number of the carriers in the first subset is less or equal to m; sending a first monitoring command associated with the first subset of the more than m carriers via a first physical-layer signaling to the terminal; selecting a second subset from the more than m carriers, wherein the first subset is different from the second subset, a number of the carriers in the second subset is less or equal to m, and wherein a total number of the carriers in the second subset and the carriers in the first subset is beyond the capability of the terminal; and sending a second monitoring command associated with the second subset of the more than m carriers via a second physical-layer signaling to the terminal. ### Claim 2 (depends on 1) The method of claim 1, the method further comprising: receiving a channel state information (CSI) or a radio resource management (RRM) measurement report associated with the more than m carriers from the terminal; wherein the first subset and the second subset are selected based on the CSI or the RRM measurement report. ### Claim 3 (depends on 1) The method of claim 1, the method further comprising: sending an instruction via a radio resource control (RRC) signaling to instruct the terminal to perform radio resource management (RRM) measurement; receiving a RRM measurement report from the terminal; and selecting the more than m carriers for configuring the RRC connections based on the RRM measurement report. ### Claim 4 (depends on 1) The method of claim 1, the method further comprising: selecting the more than m carriers for configuring the RRC connections based on a coordinated decision with another base station or a network coordinator in the wireless network. ### Claim 5 (depends on 1) The method of claim 1, wherein a carrier frequency in the first subset is in a band licensed for cellular communication, and wherein a carrier frequency in the second subset is in a band reserved for unlicensed communication. ### Claim 6 (depends on 1) The method of claim 1, the first physical-layer signaling and the second physical-layer signaling are downlink control information (DCI) signaling carried by physical downlink control channel (PDCCH) or by enhanced PDCCH (EPDCCH). ### Claim 7 A method for communicating with a base station by a terminal in a wireless network, wherein the terminal is capable of simultaneously receiving data on at most m carriers, the method comprising: receiving an activation command associated with more than m carriers from the base station; activating the more than m carriers in accordance with the activation command; receiving a first monitoring command associated with a first subset of the activated carriers via a first physical-layer signaling from the base station, wherein a number of carriers in the first subset is less than or equal to m; monitoring the carriers in the first subset of the activated carriers to receive data; receiving a second monitoring command associated with a second subset of the activated carriers via a second physical-layer signaling from the base station, wherein the first subset is different from the second subset, a number of carriers in the second subset is less than or equal to m, and wherein a total number of the carriers in the second subset and the carriers in the first subset is beyond the capability of the terminal; and monitoring the carriers in the second subset of the activated carriers to receive data. ### Claim 8 (depends on 7) The method of claim 7, the method further comprising: receiving serving cell configurations associated with the more than m carriers via at least a radio resource control (RRC) signaling from the base station; and configuring the more than m carriers as serving cells of the terminal in accordance with the serving cell configurations. ### Claim 9 (depends on 7) The method of claim 7, before the step of the receiving of the activation command, the method further comprising: receiving a radio resource management (RRM) measurement instruction associated with the more than m carriers from the base station; performing RRM measurements on the more than m carriers in accordance with the RRM measurement instruction; and reporting RRM measurements of the more than m carriers to the base station. ### Claim 10 (depends on 7) The method of claim 7, the method further comprising: receiving a channel state information (CSI) measurement instruction associated with the more than m carriers from the base station; performing CSI measurements on the activated carriers; and reporting CSI measurements of the activated carriers to the base station. ### Claim 11 (depends on 10) The method of claim 10, wherein the CSI measurements on one or more of the activated carriers are performed by using gaps in accordance with a CSI measurement gap configuration received from the base station. ### Claim 12 (depends on 10) The method of claim 10, wherein the CSI measurements on one or more of the activated carriers are performed by using gaps in accordance with a trigger associated with a CSI measurement. ### Claim 13 A base station for communicating with a terminal in a wireless network, comprising: a processor; and a memory coupled to the processor and storing programming for execution by the processor; the processor is configured to execute the programming to perform operations of: send an activation command associated with more than m carriers to the terminal, wherein the terminal is capable of simultaneously receiving data on at most m carriers; select a first subset from the more than m carriers, wherein a number of the carriers in the first subset is less or equal to m; send a first monitoring command associated with the first subset of the more than m carriers via a first physical-layer signaling to the terminal; select a second subset from the more than m carriers, wherein the first subset is different from the second subset, a number of the carriers in the second subset is less or equal to m, and wherein a total number of the carriers in the second subset and the carriers in the first subset is beyond the capability of the terminal; and send a second monitoring command associated with the second subset of the more than m carriers via a second physical-layer signaling to the terminal. ### Claim 14 (depends on 13) The base station of claim 13, the processor is further configured to execute the programming to perform operations of: receive a channel state information (CSI) or a radio resource management (RRM) measurement report associated with the more than m carriers from the terminal; wherein the first subset and the second subset are selected based on the CSI or the RRM measurement report. ### Claim 15 (depends on 13) The base station of claim 13, the processor is further configured to execute the programming to perform operations of: send an instruction via a radio resource control (RRC) signaling to instruct the terminal to perform radio resource management (RRM) measurement; receive a RRM measurement report from the terminal; and select the more than m carriers for configuring the RRC connections based on the RRM measurement report. ### Claim 16 (depends on 13) The base station of claim 13, the processor is further configured to execute the programming to perform operations of: select the more than m carriers for configuring the RRC connections based on a coordinated decision with another base station or a network coordinator in the wireless network. ### Claim 17 A terminal for communicating with a base station in a wireless network, wherein the terminal is capable of simultaneously receiving data on at most m carriers, comprising: a processor; and a memory coupled to the processor and storing programming for execution by the processor; the processor is configured to execute the programming to perform operations of: receive an activation command associated with more than m carriers from the base station; activate the more than m carriers in accordance with the activation command; receive a first monitoring command associated with a first subset of the activated carriers via a first physical-layer signaling from the base station, wherein a number of carriers in the first subset is less than or equal to m; monitor the carriers in the first subset of the activated carriers to receive data; receive a second monitoring command associated with a second subset of the activated carriers via a second physical-layer signaling from the base station, wherein the first subset is different from the second subset, a number of carriers in the second subset is less than or equal to m, and wherein a total number of the carriers in the second subset and the carriers in the first subset is beyond the capability of the terminal; and monitor the carriers in the second subset of the activated carriers to receive data. ### Claim 18 (depends on 17) The terminal of claim 17, the processor is further configured to execute the programming to perform operations of: receive serving cell configurations associated with the more than m carriers via at least a radio resource control (RRC) signaling from the base station; and configure the more than m carriers as serving cells of the terminal in accordance with the serving cell configurations. ### Claim 19 (depends on 17) The terminal of claim 17, the processor is further configured to execute the programming to perform operations of: receive a radio resource management (RRM) measurement instruction associated with the more than m carriers from the base station; perform RRM measurements on the more than m carriers in accordance with the RRM measurement instruction; and report RRM measurements of the more than m carriers to the base station. ### Claim 20 (depends on 17) The terminal of claim 17, the processor is further configured to execute the programming to perform operations of: receive a channel state information (CSI) measurement instruction associated with the more than m carriers from the base station; perform CSI measurements on the activated carriers; and report CSI measurements of the activated carriers to the base station.