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US 11,963,055 B2Granted
Neighbor cell measurements
AssigneeApple Inc.
InventorsManasa Raghavan, Qiming Li, Jie Cui, Yang Tang, Yushu Zhang, Huaning Niu, Xiang Chen, Dawei Zhang
Life of this patent
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Abstract
This disclosure relates to techniques for configuring, performing, and reporting neighbor cell measurements in a wireless communication system. A base station of a serving cell may provide configuration information relevant to performing layer 1 (L1) measurements based on reference signals of one or more neighbor cells. A UE may perform L1 inter-frequency measurements of the neighbor cell(s) based on the configuration. The UE may report the measurements.
Claims17
An apparatus, comprising:
- a processor configured to cause a user equipment device (UE) to:
- establish a wireless link with a serving cell;
- receive, from the serving cell, configuration information;
- determine, based on the configuration information:
- a first number of intra-frequency measurement layers;
- and
- a second number of inter-frequency measurement layers;
- select, based on at least the first number of intra-frequency measurement layers and the second number of inter-frequency measurement layers, a first measurement period to apply for inter-frequency layer 1 (L1) measurement on a first neighbor cell, wherein the first measurement period comprises whichever is larger between a measurement gap repetition period (MGRP) and a neighbor cell reference signal periodicity, wherein the neighbor cell reference signal periodicity is indicated by the configuration information;
- receive, from the first neighbor cell, at least one reference signal;
- perform at least one L1 measurement of the at least one reference signal applying the first measurement period for inter-frequency L1 measurement on the first neighbor cell;
- and
- transmit, to the serving cell, a report of the at least one L1 measurement.
9 more elements
A method, comprising:
- establishing a wireless link with a serving cell;
- receiving, from the serving cell, configuration information;
- determining, based on the configuration information:
- a first number of intra-frequency measurement layers;
- and
- a second number of inter-frequency measurement layers;
- selecting, based on at least the first number of intra-frequency measurement layers and the second number of inter-frequency measurement layers, a first measurement period to apply for inter-frequency layer 1 (L1) measurement on a first neighbor cell, wherein the first measurement period comprises whichever is larger between a measurement gap repetition period (MGRP) and a neighbor cell reference signal periodicity, wherein the neighbor cell reference signal periodicity is indicated by the configuration information;
- receiving, from the first neighbor cell, at least one reference signal;
- performing at least one L1 measurement of the at least one reference signal applying the first measurement period for inter-frequency L1 measurement on the first neighbor cell;
- and
- transmitting, to the serving cell, a report of the at least one L1 measurement.
8 more elements
A method, comprising:
- establishing a wireless link with a user equipment (UE) via a serving cell;
- transmitting, to the UE from the serving cell, configuration information, the configuration information indicating:
- a first number of intra-frequency measurement layers;
- and
- a second number of inter-frequency measurement layers, wherein a first measurement period for inter-frequency layer 1, L1, measurement on a first neighbor cell is determinable identifiable based on at least the first number of intra-frequency measurement layers and the second number of inter-frequency measurement layers, wherein the first measurement period comprises whichever is larger between a measurement gap repetition period (MGRP) and a neighbor cell reference signal periodicity, wherein the neighbor cell reference signal periodicity is indicated by the configuration information;
- transmitting, via the first neighbor cell, at least one reference signal;
- and
- receiving, from the UE, a report of at least one L1 measurement of the at least one reference signal, wherein the first measurement period for inter- frequency L1 measurement on the first neighbor cell is applied in performing the at least one L1 measurement.
5 more elements
Dependencies are inferred from the claim text.