# US 11,910,257 B2 · Radio resource management (RRM) measurement for new radio (NR) network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,257 B2 - Document ID: US11910257B2 - Status: Granted - Kind: B2 - Application number: 17/930,308 - Filed: 2022-09-07 - Published: 2023-01-05 - Granted: 2024-02-20 - Earliest claimed: 2017-06-16 - Applicants: Mediatek Inc. - Inventors: Din-Hwa Huang; Hsuan-Li Lin; Tsang-Wei Yu; Yih-Shen Chen; Chiao Yao Chuang - Web page: https://patentgrep.com/patent/US11910257B2 ## CPC - H04W 36/0094: {Definition of hand-off measurement parameters} - H04L 5/0057: {Physical resource allocation for CQI} - H04W 36/0088: {Scheduling hand-off measurements} - H04W 36/38: by fixed network equipment - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - 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)} - 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 Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally. ## Claims ### Claim 1 A method comprising: configuring, by a base station, a radio resource management (RRM) measurement configuration for one or more user equipments (UEs) in a wireless network, wherein the RRM measurement configuration includes both a synchronization signal (SS) block and a channel state information reference signal (CSI-RS) to be measured for an RRM measurement; configuring a measurement gap included in the RRM measurement configuration with a measurement gap length (MGL) within which the SS block and the CSI-RS are configured without overlapping in the time domain for the RRM measurement, wherein the MGL varies with the RRM measurement configuration; and sending the RRM measurement configuration to the one or more UEs. ### Claim 2 (depends on 1) The method of claim 1, wherein a single common measurement duration and a single common measurement timing offset are configured for different CSI-RS resources. ### Claim 3 (depends on 2) The method of claim 2, wherein each CSI-RS is configured with one or more parameters comprising: a cell identification (ID), a scrambling ID, a periodicity and timing offset of the CSI-RS, a measurement bandwidth of the CSI-RS, a frequency location, a numerology of the CSI-RS, and a quasi-co-location (QCL) of the CSI-RS. ### Claim 4 (depends on 1) The method of claim 1, wherein each CSI-RS configuration reuses a beam management configuration of each corresponding CSI-RS if its corresponding cell ID indicates a serving cell. ### Claim 5 (depends on 1) The method of claim 1, wherein the RRM measurement configuration is sent through dedicated signaling. ### Claim 6 (depends on 1) The method of claim 1, wherein the SS block is an SS burst block across multiple analog beams, and wherein CSI-RS is allocated in a PDSCH symbol after the SS block. ### Claim 7 (depends on 6) The method of claim 6, wherein a same analog beamforming applies to both the SS burst block and the CSI-RS burst block. ### Claim 8 A method comprising: obtaining a radio resource management (RRM) measurement configuration by a user equipment (UE) in a wireless network, wherein the RRM measurement configuration includes both a synchronization signal (SS) block and a channel state information reference signal (CSI-RS) to be measured for an RRM measurement; obtaining a measurement gap configured in the RRM measurement configuration with a measurement gap length (MGL) within which the SS block and the CSI-RS are configured by the network to be without overlapping in the time domain for the RRM measurement, wherein the MGL varies with the RRM measurement configuration; and performing the RRM measurement by measuring both the SS block and the CSI-RS indicated by the RRM measurement configuration. ### Claim 9 (depends on 8) The method of claim 8, wherein a single common measurement duration and a single common measurement timing offset are configured for different CSI-RS resources. ### Claim 10 (depends on 9) The method of claim 9, wherein each CSI-RS is configured with one or more parameters comprising: a cell identification (ID), a scrambling ID, a periodicity and timing offset of the CSI-RS, a measurement bandwidth of the CSI-RS, a frequency location, a numerology of the CSI-RS, and a quasi-co-location (QCL) of the CSI-RS. ### Claim 11 (depends on 8) The method of claim 8, wherein each CSI-RS configuration reuses a beam management configuration of each corresponding CSI-RS if its corresponding cell ID indicates a serving cell. ### Claim 12 (depends on 8) The method of claim 8, wherein the RRM measurement configuration is configured by dedicated signaling. ### Claim 13 (depends on 8) The method of claim 8, wherein the SS block is an SS burst block across multiple analog beams, and wherein CSI-RS is allocated in a PDSCH symbol after the SS block. ### Claim 14 (depends on 13) The method of claim 13, wherein a same analog beamforming applies to both the SS burst block and the CSI-RS burst block. ### Claim 15 A base station, comprising: a transceiver that transmits and receives radio frequency (RF) signals from one or more user equipments (UEs) in a wireless network; a radio resource management (RRM) measurement configuration module that configures an RRM measurement configuration for one or more user equipments (UEs) in a wireless network, wherein the RRM measurement configuration includes both a synchronization signal (SS) block and a channel state information reference signal (CSI-RS) to be measured for an RRM measurement; an RRM measurement gap module that configures a measurement gap included in the RRM measurement configuration with a measurement gap length (MGL) within which the SS block and the CSI-RS are configured without overlapping in the time domain for the RRM measurement, wherein the MGL varies with the RRM measurement configuration; and an RRM measurement control module that sends the RRM measurement configuration to the one or more UEs. ### Claim 16 (depends on 15) The base station of claim 15, wherein a single common measurement duration and a single common measurement timing offset are configured for different CSI-RS resources. ### Claim 17 (depends on 16) The base station of claim 16, wherein each CSI-RS is configured with one or more parameters comprising: a cell identification (ID), a scrambling ID, a periodicity and timing offset of the CSI-RS, a measurement bandwidth of the CSI-RS, a frequency location, a numerology of the CSI-RS, and a quasi-co-location (QCL) of the CSI-RS. ### Claim 18 (depends on 15) The base station of claim 15, wherein each CSI-RS configuration reuses a beam management configuration of each corresponding CSI-RS if its corresponding cell ID indicates a serving cell. ### Claim 19 (depends on 15) The base station of claim 15, wherein the SS block is an SS burst block across multiple analog beams, and wherein CSI-RS is allocated in a PDSCH symbol after the SS block. ### Claim 20 (depends on 15) The base station of claim 15, wherein a same analog beamforming applies to both the SS burst block and the CSI-RS burst block.