# US 11,445,424 B2 · Resource arrangement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,424 B2 - Document ID: US11445424B2 - Status: Granted - Kind: B2 - Application number: 15/652,904 - Filed: 2017-07-18 - Published: 2018-01-18 - Granted: 2022-09-13 - Earliest claimed: 2016-07-18 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Himke Van Der Velde; Gert Jan Van Lieshout - Web page: https://patentgrep.com/patent/US11445424B2 ## CPC - H04W 36/305: {Handover due to radio link failure (control signalling for hand-off failure H04W36/0079)} - H04W 36/0072: {of resource information of target access point} - H04W 72/02: Selection of wireless resources by user or terminal - H04W 72/542: using measured or perceived quality - H04W 74/02: Hybrid access - H04W 36/249: {according to timing information} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method for switching resource pools by a device arranged to transmit according to a first resource pool is provided. The method includes sensing a second resource pool, determining whether the second resource pool has been sensed sufficiently long to apply sensing based resource selection, and selecting resources from an exceptional pool by using random resource selection, if the second resource pool has not been sensed sufficiently long to apply sensing based resource selection. ## Claims ### Claim 1 A method for switching resource pools by a device in a wireless communication system, the method comprising: receiving, from a base station, system information block (SIB) 21 including first configuration information and second configuration information indicating resources for a sidelink communication; sensing normal resource pools indicated by the first configuration information included in the SIB 21; determining whether a result of the sensing the normal resource pools is available; selecting one of the normal resource pools indicated by the first configuration information in case that the result of the sensing the normal resource pools is available; selecting, by using random selection, one of exceptional resource pools indicated by the second configuration information included in the SIB 21 in case that the device is in idle mode and the result of the sensing the normal resource pools is not available; and transmitting sidelink control information and data based on the selected resource, wherein the first configuration information is associated with the normal resource pools, and the second configuration information is associated with the exceptional resource pools, and wherein the first configuration information is different from the second configuration information. ### Claim 2 (depends on 1) The method of claim 1, further comprising: determining an expected cell change; and starting sensing of the normal resource pools based on the determining the expected cell change. ### Claim 3 (depends on 1) The method of claim 1, further comprising: determining a cell change; and switching to the normal resource pools based on the result of the sensing the normal resource pools and the determining the cell change. ### Claim 4 (depends on 1) The method of claim 1, further comprising: determining an expected zone change; and starting sensing of the normal resource pools based on the determining the expected zone change. ### Claim 5 (depends on 1) The method of claim 1, further comprising: determining a zone change; and switching to the normal resource pools based on the result of the sensing the normal resource pools and the determining the zone change. ### Claim 6 (depends on 1) The method of claim 1, further comprising: receiving a command; and starting sensing of the normal resource pools based on the received command. ### Claim 7 (depends on 1) The method of claim 1, further comprising: determining a state transition of the device; and starting sensing of the normal resource pools based on the determining the state transition. ### Claim 8 (depends on 1) The method of claim 1, wherein the sensing is according to scheduling assignment (SA) decoding. ### Claim 9 (depends on 1) The method of claim 1, wherein the sensing is according to energy measurement. ### Claim 10 (depends on 1) The method of claim 1, further comprising pre-sensing a reception resource pool. ### Claim 11 (depends on 1) The method of claim 1, further comprising: receiving a bit indicating that a resource pools continues across a cell border. ### Claim 12 (depends on 1) The method of claim 1, further comprising: pre-sensing a second resource pools based on a Time to Trigger (TTT) or a Treselection timer. ### Claim 13 A device for switching resource pools in a wireless communication system, the device comprising: a transceiver; and a controller coupled with the transceiver and configured to control to: receive, from a base station, system information block (SIB) 21 including first configuration information and second configuration information indicating resources for a sidelink communication, sense a normal resource pools indicated by the first configuration information included in the SIB 21, determine whether a result of the sensing the normal resource pools is available, select one of the normal resource pools indicated by the first configuration information in case that the result of the sensing the normal resource pools is available, select, by using random selection, one of an exceptional resource pools indicated by the second configuration information included in the SIB 21, in case that the device is in idle mode and the result of the sensing the normal resource pools is not available, and transmit sidelink control information and a data based on the selected resource, wherein the first configuration information is associated with the normal resource pools, and the second configuration information is associated with the exceptional resource pools, and wherein the first configuration information is different from the second configuration information. ### Claim 14 (depends on 13) The device of claim 13, wherein the controller is configured to: determine an expected cell change; and start sensing the normal resource pools based on the determined expected cell change. ### Claim 15 (depends on 13) The device of claim 13, wherein the controller is configured to: determine an expected zone change; and start sensing the normal resource pools based on the determined expected zone change. ### Claim 16 (depends on 13) The device of claim 13, wherein the controller is configured to: receive a command; and start sensing the normal resource pools based on the received command.