# US 10,455,487 B2 · Repetitive transmission for NB-IoT > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,487 B2 - Document ID: US10455487B2 - Status: Granted - Kind: B2 - Application number: 16/078,645 - Filed: 2017-02-09 - Published: 2019-02-14 - Granted: 2019-10-22 - Earliest claimed: 2016-03-11 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Shin Horng Wong; Martin Warwick Beale - Web page: https://patentgrep.com/patent/US10455487B2 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04W 84/14: WLL [Wireless Local Loop]; RLL [Radio Local Loop] - 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 A terminal device for use with a wireless telecommunications network, the terminal device comprising: a receiver; and a controller operable to control the receiver to receive data from the wireless telecommunications network, wherein the data is transmitted using a candidate of a radio search space, the radio search space being defined by a plurality of candidates and each candidate of the radio search space being defined by a set of time and/or frequency radio resources for use in repeatedly transmitting the data a number of times associated with that candidate, and wherein the controller is operable to control the receiver to attempt to receive the data from each candidate of the radio search space; wherein the controller is operable to determine the radio search space on the basis of a predetermined radio search space and one or more multiplier values, wherein the number of times that data is repeatedly transmittable using each candidate of the radio search space is determined using multiplication of a predetermined number of times that data is repeatedly transmittable using a corresponding candidate of the predetermined radio search space with a respective one of the multiplier values, wherein each of the one or more multiplier values is variable based on a value of each of one or more predetermined parameters. ## Claims ### Claim 1 A terminal device for use with a wireless telecommunications network, the terminal device comprising: a receiver; and a controller operable to control the receiver to receive data from the wireless telecommunications network, wherein the data is transmitted using a candidate of a radio search space, the radio search space being defined by a plurality of candidates and each candidate of the radio search space being defined by a set of time and/or frequency radio resources for use in repetitions, the repetitions corresponding to in repeatedly transmitting the data a number of times associated with that candidate, and wherein the controller is operable to control the receiver to attempt to receive the data from each candidate of the radio search space; wherein the controller is operable to determine the radio search space based on a predetermined radio search space and one or more multiplier values, wherein the number of times that data is repeatedly transmittable using each candidate of the radio search space is determined using multiplication of a predetermined number of times that data is repeatedly transmittable using a corresponding candidate of the predetermined radio search space with a respective one of the multiplier values, wherein each of the one or more multiplier values is variable based on a value of each of one or more predetermined parameters, and in response to a coverage level resulting in the repetitions exceeding a predetermined threshold, the controller is operable to automatically apply power boosting on a physical resource block in which a paging search space is transmitted. ### Claim 2 (depends on 1) A terminal device according to claim 1, wherein the terminal device is a Narrow Band Internet of Things (NB-IoT) terminal device and the radio search space is a Narrow Band Physical Downlink Control Channel (NB-PDCCH) search space. ### Claim 3 (depends on 1) A terminal device according to claim 1, wherein the predetermined radio search space is one of a plurality of predetermined radio search spaces, each of the plurality of predetermined radio search spaces respectively being defined by candidates with a different set of characteristics, and the controller is operable to control the receiver to receive data from the wireless telecommunications network indicative of the one of the plurality of predetermined radio search spaces to be used. ### Claim 4 (depends on 1) A terminal device according to claim 1, wherein the one or more multiplier values form one of a plurality of predetermined sets of multiplier values, and the controller is operable to select the one of the plurality of predetermined sets of multiplier values to be used based on the value of each of the one or more predetermined parameters. ### Claim 5 (depends on 1) A terminal device according to claim 1, wherein the one or more predetermined parameters comprise an operation mode of the network when communicating with the terminal device. ### Claim 6 (depends on 5) A terminal device according to claim 5, wherein the terminal device is a Narrow Band Internet of Things (NB-IoT) terminal device and the radio search space is a Narrow Band Physical Downlink Control Channel (NB-PDCCH) search space, and the operation mode of the network is one of a stand-alone operation mode, a guard band operation mode or an in-band operation mode. ### Claim 7 (depends on 6) A terminal device according to claim 6, wherein a reference signal of the NB-IoT carrier is associated with a different scrambling sequence for each respective operation mode, and the controller is operable to determine whether the network operates in the stand-alone operation mode, the guard band operation mode or the in-band operation mode when communicating with the terminal device by blind decoding for each of the different scrambling sequences. ### Claim 8 (depends on 6) A terminal device according to claim 6, wherein the controller is operable to control the receiver to receive from the wireless telecommunications network data indicative of whether the network operates in the stand-alone operation mode, the guard band operation mode or the in-band operation mode when communicating with the terminal device. ### Claim 9 (depends on 8) A terminal device according to claim 8, wherein the data indicative of whether the network operates in the stand-alone operation mode, the guard-band operation mode or the in-band operation when communicating with the terminal device is a starting symbol of a radio subframe via which radio communication between the terminal device and the wireless telecommunications network is enabled. ### Claim 10 (depends on 8) A terminal device according to claim 8, wherein the data indicative of whether the network operates in the stand-alone operation mode, the guard-band operation mode or the in-band operation when communicating with the terminal device is one or more indication bits in one of the system information block (SIB) or master information block (MIB). ### Claim 11 (depends on 1) A terminal device according to claim 1, wherein the one or more predetermined parameters comprise an available system bandwidth for radio communication between the terminal device and the wireless telecommunications network. ### Claim 12 (depends on 1) A terminal device according to claim 1, wherein the one or more predetermined parameters comprise a transmit power of infrastructure equipment of the wireless telecommunications network via which radio communication between the terminal device and the wireless telecommunications network is enabled. ### Claim 13 (depends on 1) A terminal device according to claim 1, wherein the terminal device is a Narrow Band Internet of Things (NB-IoT) terminal device, and the one or more predetermined parameters comprise a level of power boosting applied on an NB-IoT narrowband used for communicating with the terminal device by infrastructure equipment of the wireless telecommunications network via which radio communication between the terminal device and the wireless telecommunications network is enabled. ### Claim 14 Infrastructure equipment for use with a wireless telecommunications network, the infrastructure equipment comprising: a transmitter; and a controller operable to control the transmitter to transmit data to a terminal device of the wireless telecommunications network, wherein the data is transmitted using a candidate of a radio search space, the radio search space being defined by a plurality of candidates and each candidate of the radio search space being defined by a set of time and frequency radio resources for use in repetitions, the repetitions corresponding to repeatedly transmitting the data a number of times associated with that candidate; wherein the controller is operable to determine the radio search space based on a predetermined radio search space and one or more multiplier values, wherein the number of times that data is repeatedly transmittable using each candidate of the radio search space is determined using multiplication of a predetermined number of times that data is repeatedly transmittable using a corresponding candidate of the predetermined radio search space with a respective one of the multiplier values, wherein each of the one or more multiplier values is variable based on a value of each of one or more predetermined parameters, and in response to a coverage level resulting in the repetitions exceeding a predetermined threshold, the controller is operable to automatically apply power boosting on a physical resource block in which a paging search space is transmitted. ### Claim 15 (depends on 14) Infrastructure equipment according to claim 14, wherein the terminal device is a Narrow Band Internet of Things (NB-IoT) terminal device and the radio search space is a Narrow Band Physical Downlink Control Channel (NB-PDCCH) search space. ### Claim 16 (depends on 14) Infrastructure equipment according to claim 14, wherein the predetermined radio search space is one of a plurality of predetermined radio search spaces, each of the plurality of predetermined radio search spaces respectively being defined by candidates with a different set of characteristics, and the controller is operable to control the transmitter to transmit data to the terminal device indicative of the one of the plurality of predetermined radio search spaces to be used. ### Claim 17 (depends on 14) Infrastructure equipment according to claim 14, wherein the one or more multiplier values form one of a plurality of predetermined sets of multiplier values, and the controller is operable to select the one of the plurality of predetermined sets of multiplier values to be used based on the value of each of the one or more predetermined parameters. ### Claim 18 (depends on 14) Infrastructure equipment according to claim 14, wherein the one or more predetermined parameters comprise an operation mode of the infrastructure equipment when communicating with the terminal device. ### Claim 19 (depends on 18) Infrastructure equipment according to claim 18, wherein the terminal device is a Narrow Band Internet of Things (NB-IoT) terminal device and the radio search space is a Narrow Band Physical Downlink Control Channel (NB-PDCCH) search space, and the operation mode of the infrastructure equipment is one of a stand-alone operation mode, a guard band operation mode or an in-band operation mode. ### Claim 20 Integrated circuitry for a terminal device for use with a wireless telecommunications network, the integrated circuitry comprising: a receiver; and a controller operable to control the receiver to receive data from the wireless telecommunications network, wherein the data is transmitted using a candidate of a radio search space, the radio search space being defined by a plurality of candidates and each candidate of the radio search space being defined by a set of time and/or frequency radio resources for use in repetitions, the repetitions corresponding to repeatedly transmitting the data a number of times associated with that candidate, and wherein the controller is operable to control the receiver to attempt to receive the data from each candidate of the radio search space; wherein the controller is operable to determine the radio search space based on a predetermined radio search space and one or more multiplier values, wherein the number of times that data is repeatedly transmittable using each candidate of the radio search space is determined using multiplication of a predetermined number of times that data is repeatedly transmittable using a corresponding candidate of the predetermined radio search space with a respective one of the multiplier values, wherein each of the one or more multiplier values is variable based on a value of each of one or more predetermined parameters, and in response to a coverage level resulting in the repetitions exceeding a predetermined threshold, the controller is operable to automatically apply power boosting on a physical resource block in which a paging search space is transmitted.