# US 11,116,015 B2 · Efficient method of DL-CINR measurement and reporting in NB IoT > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,116,015 B2 - Document ID: US11116015B2 - Status: Granted - Kind: B2 - Application number: 16/273,904 - Filed: 2019-02-12 - Published: 2019-08-29 - Granted: 2021-09-07 - Earliest claimed: 2018-02-23 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Srikanth Menon; Raghavendra Shyam Ananda; Praveen Maruthoormana Purushothaman; Alberto Rico Alvarino; Mungal Singh Dhanda; Le Liu - Web page: https://patentgrep.com/patent/US11116015B2 ## CPC - H04W 74/0858: {collision detection} - H04B 17/327: Received signal code power [RSCP] - H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] - H04L 1/00: Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0085: {when channel conditions change} - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04L 25/02: Details {; arrangements for supplying electrical power along data transmission lines (systems for transmitting signals via power distribution lines H04B3/54)} - H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence) - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 76/10: Connection setup - H04L 5/0023: {Time-frequency-space} - H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling} - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 25/0202: {Channel estimation} - 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 An aspect of the present disclosure includes methods, systems, and computer-readable media for receiving, at the UE, a random access response including a first signal via a first physical channel and a second signal via a second physical channel from a base station (BS), generating a connection request based on the random access response, estimating a carrier to interference plus noise ratio (CINR) of a random-access channel based on at least one the first signal or the second signal, and sending a message including the CINR and the connection request to the BS in response to the random access response. ## Claims ### Claim 1 A method of wireless communication by a user equipment (UE), comprising: receiving, at the UE, a random access response including a first signal via a first physical channel and a second signal via a second physical channel from a base station (BS); generating a connection request based on the random access response; estimating a carrier to interference plus noise ratio (CINR) of a random-access channel based on at least one of the first signal or the second signal; and sending a message including the CINR and the connection request to the BS in response to the random access response, wherein estimating the CINR comprises dividing an estimated signal power by a difference between an estimated total power and the estimated signal power. ### Claim 2 (depends on 1) The method of claim 1, wherein the first physical channel comprises a narrowband physical downlink control channel, the second physical channel comprises a narrowband physical downlink shared channel, and the first signal and the second signal comprise data signals. ### Claim 3 (depends on 1) The method of claim 1, further comprising: sending a random access request including a narrowband reference signal received power (NRSRP) estimation for an anchor carrier to the BS, wherein the random access response is in reply to the random access request. ### Claim 4 (depends on 1) The method of claim 1, further comprising: receiving, from the BS, contention resolution information in response to the message including the CINR and the connection request; and connecting to the BS using the contention resolution information. ### Claim 5 (depends on 1) The method of claim 1, wherein estimating the CINR comprises estimating the CINR for a non-anchor carrier. ### Claim 6 (depends on 1) The method of claim 1, further comprising estimating a narrowband reference signal received power (NRSRP) for a non-anchor carrier in response to receiving the random access response. ### Claim 7 (depends on 1) The method of claim 1, wherein receiving the random access response further includes receiving a timing advance value for adjusting a timing of physical uplink shared channel signal. ### Claim 8 (depends on 1) The method of claim 1, wherein the UE is a narrowband internet of things UE. ### Claim 9 A user equipment (UE), comprising a memory; a transceiver; one or more processors operatively coupled to the memory and the transceiver, the one or more processors being configured to: receive, via the transceiver at the UE, a random access response including a first signal via a first physical channel and a second signal via a second physical channel from a base station (BS); generate a connection request based on the random access response; estimate a carrier to interference plus noise ratio (CINR) of a random-access channel based on at least one of the first signal or the second signal; and send, via the transceiver, a message including the CINR and the connection request to the BS in response to the random access response, wherein estimating the CINR comprises dividing an estimated signal power by a difference between an estimated total power and the estimated signal power. ### Claim 10 (depends on 9) The UE of claim 9, wherein the first physical channel comprises a narrowband physical downlink control channel, the second physical channel comprises a narrowband physical downlink shared channel, and the first signal and the second signal comprise data signals. ### Claim 11 (depends on 9) The UE of claim 9, wherein the one or more processors are further configured to send a random access request including a narrowband reference signal received power (NRSRP) estimation for an anchor carrier to the BS, wherein the random access response is in reply to the random access request. ### Claim 12 (depends on 9) The UE of claim 9, wherein the one or more processors are further configured to: receive, from the BS, contention resolution information in response to the message including the CINR and the connection request; and connect to the BS using the contention resolution information. ### Claim 13 (depends on 9) The UE of claim 9, wherein estimating the CINR comprises estimating the CINR for a non-anchor carrier. ### Claim 14 (depends on 9) The UE of claim 9, wherein the one or more processors are further configured to estimate a narrowband reference signal received power (NRSRP) for a non-anchor carrier in response to receiving the random access response. ### Claim 15 (depends on 9) The UE of claim 9, wherein receiving the random access response further includes receiving a timing advance value for adjusting a timing of physical uplink shared channel signal. ### Claim 16 (depends on 9) The UE of claim 9, wherein the UE is a narrowband internet of things UE. ### Claim 17 A non-transitory computer-readable medium having instructions stored therein that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: receive, at the UE, a random access response including a first signal via a first physical channel and a second signal via a second physical channel from a base station (BS); generate a connection request based on the random access response; estimate a carrier to interference plus noise ratio (CINR) of a random-access channel based on at least one of the first signal or the second signal; and send a message including the CINR and the connection request to the BS in response to the random access response, wherein estimating the CINR comprises dividing an estimated signal power by a difference between an estimated total power and the estimated signal power. ### Claim 18 (depends on 17) The non-transitory computer-readable medium of claim 17, wherein the first physical channel comprises a narrowband physical downlink control channel, the second physical channel comprises a narrowband physical downlink shared channel, and the first signal and the second signal comprise data signals. ### Claim 19 (depends on 17) The non-transitory computer-readable medium of claim 17, further comprising instructions that, when executed by the one or more processors of the UE, cause the one or more processors to send a random access request including a narrowband reference signal received power (NRSRP) estimation for an anchor carrier to the BS, wherein the random access response is in reply to the random access request. ### Claim 20 (depends on 17) The non-transitory computer-readable medium of claim 17, further comprising instructions that, when executed by the one or more processors of the UE, cause the one or more processors to: receive, from the BS, contention resolution information in response to the message including the CINR and the connection request; and connect to the BS using the contention resolution information. ### Claim 21 (depends on 17) The non-transitory computer-readable medium of claim 17, wherein estimating the CINR comprises estimating the CINR for a non-anchor carrier. ### Claim 22 (depends on 17) The non-transitory computer-readable medium of claim 17, further comprising instructions that, when executed by the one or more processors of the UE, cause the one or more processors to estimate a narrowband reference signal received power (NRSRP) for a non-anchor carrier in response to receiving the random access response. ### Claim 23 (depends on 17) The non-transitory computer-readable medium of claim 17, wherein receiving the random access response further includes receiving a timing advance value for adjusting a timing of physical uplink shared channel signal. ### Claim 24 (depends on 17) The non-transitory computer-readable medium of claim 17, wherein the UE is a narrowband internet of things UE. ### Claim 25 A user equipment (UE), comprising: means for receiving, at the UE, a random access response including a first signal via a first physical channel and a second signal via a second physical channel from a base station (BS); means for generating a connection request based on the random access response; means for estimating a carrier to interference plus noise ratio (CINR) of a random-access channel based on at least one the first signal or the second signal; and means for sending a message including the CINR and the connection request to the BS in response to the random access response, wherein estimating the CINR comprises dividing an estimated signal power by a difference between an estimated total power and the estimated signal power. ### Claim 26 (depends on 25) The UE of claim 25, wherein the first physical channel comprises a narrowband physical downlink control channel, the second physical channel comprises a narrowband physical downlink shared channel, and the first signal and the second signal comprise data signals. ### Claim 27 (depends on 25) The UE of claim 25, wherein means for estimating the CINR comprises means for estimating for a non-anchor carrier. ### Claim 28 (depends on 25) The UE of claim 25, further comprising: means for sending a random access request including a narrowband reference signal received power (NRSRP) estimation for an anchor carrier to the BS, wherein the random access response is in reply to the random access request. ### Claim 29 (depends on 25) The UE of claim 25, further comprising: means for receiving, from the BS, contention resolution information in response to the message including the CINR and the connection request; and means for connecting to the BS using the contention resolution information. ### Claim 30 (depends on 25) The UE of claim 25, further comprising means for estimating a narrowband reference signal received power (NRSRP) for a non-anchor carrier in response to receiving the random access response.