Configuring measurement reporting for new radio

According to certain embodiments, a wireless device performs a method for measurement configuration and reporting. The wireless device is associated with a plurality of serving cells. The method comprises obtaining a plurality of measurement configurations from a network node. Each measurement configuration comprises a measurement identifier, a measurement object, and a report configuration. The method further comprises performing measurements on each serving cell of the plurality of serving cells according to at least one measurement configuration. When a measurement report associated with a measurement identifier is triggered, the method further comprises reporting results of the performed measurements for the plurality of serving cells to a network node according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

TECHNICAL FIELD

Embodiments of the present disclosure are directed to wireless communications and, more particularly, to configuring measurement reporting for Third Generation Partnership Project (3GPP) fifth generation (5G) new radio (NR).

BACKGROUND

Third Generation Partnership Project (3GPP) long term evolution (LTE) includes primary cell (PCell) and secondary cell (SCell) related configurations for measuring particular signals and/or frequencies. The network provides a measurement configuration to a user equipment (UE). The measurement configuration includes information that the UE uses for performing measurements. An example measurement configuration includes the MeasConfig information element (reproduced below) in 3GPP TS 36.331, which provides the UE with, among other things, the measurement objects, reporting configuration, and quantity configuration. A measurement configuration may include one or measurement identifiers (e.g., measId) associated with one or more report configurations (e.g., reportConfig) and one or more measurement objects (e.g., measObject).

A UE may be configured with multiple measurement objects corresponding to a carrier associated with the measurement object. In carrier aggregation (CA) or dual connectivity (DC), the UE is configured with one PCell and possibly one or more SCells. The UE performs the measurements in the corresponding frequencies.

In LTE, only one reference signal (RS) type is used to derive cell quality or cell measurement results. Thus, upon receiving a measurement configuration, the UE performs cell measurement results for the PCell and the configured SCells based on the cell-specific reference signal in the configured frequencies. Therefore, for all the serving cells, the UE uses the same reference signal type (i.e., the cell-specific RS).

Fifth generation (5G) new radio (NR) also includes 3GPP requirements related to PCell and SCells. For example, event triggered reporting includes PCell and SCells cell quality in the measurement report. Thus, a UE always includes PCell and SCells measurements in the measurement report. Beam level information (beam IDs and/or available measurements results) of PCell/PSCell and SCell is included in the measurement report if the network has configured the UE to do so. The UE performs reference signal received power (RSRP) and reference signal received quality (RSRQ) measurements for each serving cell. Signal to interference and noise ratio (SINR) may always be measured on serving cells or may be configured by the network. One RS type for serving cell measurement reporting and neighbor cell measurement reporting is configured in one reporting configuration.

Some requirements include configurability of NR serving cell measurements. For example, if a measurement report is triggered associated to any measurement ID, then the UE includes all available measurement results for PCell and configured SCells.

A UE always performs RSRP and RSRQ measurements for all the serving cells. The reporting configuration provides the RS type to be used for the measurement reporting of the serving cells. The network can also request the UE to include the beam level information for the serving cells. The network can configure a UE to report the best neighbor cells in the serving frequencies.

SUMMARY

Based on the specifications above, a user equipment (UE) always includes PCell and SCells measurements in a measurement report. The UE always performs reference signal receive power (RSRP) and reference signal receive quality (RSRQ) measurements for all the serving cells. The reporting configuration provides the reference signal (RS) type to be used for the measurement reporting of the serving cells. The network can also request the UE to include the beam level information for the serving cells. The requirements, however, do not solve all the problems related to measurement reporting, such as: (a) whether to include all quantities (RSRP, RSRQ and signal to interference plus noise ratio (SINR)) based reporting for serving cells, and if so, where to find the corresponding configuration; (b) where to configure whether to include the beam level information of the serving cell; (c) how many beams to be included for the serving cell measurements; (d) how to select serving cells' beams to be included in the measurement report; and (e) what type of measurements (RS type, cell and/or beam, RSRP and/or RSRQ and/or SINR) to include for the neighboring cells in the serving frequencies.

Certain aspects of the present disclosure and their embodiments may provide solutions to these or other challenges. Particular embodiments include methods for a UE to determine which beams are to be reported for the serving cell. Particular embodiments include methods for the UE to determine which cell level measurements are to be reported for the serving cell. Particular embodiments include methods for the UE to determine which neighbor cell level and neighbor cell beam level measurements are to be reported for the serving frequencies.

According to certain embodiments, a wireless device performs a method for measurement configuration and reporting. The wireless device is associated with a plurality of serving cells. The method comprises obtaining a plurality of measurement configurations from a network node. Each measurement configuration comprises a measurement identifier, a measurement object, and a report configuration. The method further comprises performing measurements on each serving cell of the plurality of serving cells according to at least one measurement configuration. When a measurement report associated with a measurement identifier is triggered, the method further comprises reporting results of the performed measurements for the plurality of serving cells to a network node according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes an indication of whether beam level measurement is enabled, and reporting results of the performed measurements for the plurality of serving cells comprises reporting beam level measurements according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a number of beams to report, and reporting results of the performed measurements for the plurality of serving cells comprises reporting measurements for the number of beams according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a beam signal threshold, and reporting results of the performed measurements for the plurality of serving cells comprising reporting measurements for the beams with beam signal qualities better than the beam signal threshold of the measurement object of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a beam signal threshold, and reporting results of the performed measurements for the plurality of serving cells comprising reporting measurements for the beams with beam signal qualities better than the beam signal threshold of a measurement object associated with the serving cell.

In particular embodiments, wherein each measurement configuration of the plurality of measurement configurations includes a reference signal type, and reporting results of the performed measurements for the plurality of serving cells comprising reporting measurements based on the reference signal type of the report configuration of the measurement configuration with the measurement identifier associated with the triggered event, wherein the reference signal type comprises at least one of a CSI-RS or a SS.

In particular embodiments, the method further comprises reporting results of measurements on a neighbor cell to a network node according to a measurement configuration associated with a serving cell that uses the same frequency as the neighbor cell. The neighbor cell may be one of a plurality of neighbor cells, and based on the performed measurements, the neighbor cell signal quality may be better than the other neighbor cells of the plurality of neighbor cells.

According to some embodiments, a wireless device is associated with a plurality of serving cells. The wireless device comprises processing circuitry operable to obtain a plurality of measurement configurations from a network node. Each measurement configuration of the plurality of measurement configurations comprises a measurement identifier, a measurement object, and a report configuration. The processing circuitry is further operable to perform measurements on each serving cell of the plurality of serving cells according to at least one measurement configuration of the plurality of measurement configurations. When a measurement report associated with a measurement identifier is triggered, the processing circuitry is operable to report results of the performed measurements for the plurality of serving cells to a network node according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes an indication of whether beam level measurement is enabled, and the processing circuitry is operable to report the results of the performed measurements for the plurality of serving cells by reporting beam level measurements according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a number of beams to report, and the processing circuitry is operable to report the results of the performed measurements for the plurality of serving cells by reporting measurements for the number of beams according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a beam signal threshold, and the processing circuitry is operable to report the results of the performed measurements for the plurality of serving cells by reporting measurements for the beams with beam signal qualities better than the beam signal threshold of the measurement object of the measurement configuration with the measurement identifier associated with the triggered event.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a beam signal threshold, and the processing circuitry is operable to report the results of the performed measurements for the plurality of serving cells by reporting measurements for the beams with beam signal qualities better than the beam signal threshold of a measurement object associated with the serving cell.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a reference signal type, the processing circuitry is operable to report the results of the performed measurements for the plurality of serving cells comprising reporting measurements based on the reference signal type of the report configuration of the measurement configuration with the measurement identifier associated with the triggered event, wherein the reference signal type comprises at least one of a CSI-RS or a SS.

In particular embodiments, the processing circuitry is further operable to report results of measurements on a neighbor cell to a network node according to a measurement configuration associated with a serving cell that uses the same frequency as the neighbor cell. The neighbor cell may be one of a plurality of neighbor cells, and based on the performed measurements, the neighbor cell signal quality may be better than the other neighbor cells of the plurality of neighbor cells.

According to some embodiments, a method for measurement configuration performed by a network node comprises transmitting a plurality of measurement configurations to a wireless device for configuring measurements on a plurality of serving cells. Each measurement configuration of the plurality of measurement configurations comprises a measurement identifier, a measurement object, and a report configuration. The method further comprises receiving, from the wireless device, a measurement report that includes results of measurements performed by the wireless device on each serving cell of the plurality of serving cells according to a report configuration of a measurement configuration with a measurement identifier associated with the event that triggered the measurement report.

According to some embodiments, a network node comprises processing circuitry operable to transmit a plurality of measurement configurations to a wireless device for configuring measurements on a plurality of serving cells. Each measurement configuration of the plurality of measurement configurations comprises a measurement identifier, a measurement object, and a report configuration. The processing circuitry is further operable to receive, from the wireless device, a measurement report that includes results of measurements performed by the wireless device on each serving cell of the plurality of serving cells according to a report configuration of a measurement configuration with a measurement identifier associated with the event that triggered the measurement report.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a number of beams to report, and the measurement report includes results of measurements performed by the wireless device on each serving cell according to the report configuration of the measurement configuration with the measurement identifier associated with the event that triggered the measurement report.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a beam signal threshold, and the measurement report includes results of measurements performed by the wireless device on each serving cell for the beams with beam signal qualities better than the beam signal threshold of the measurement object of the measurement configuration with the measurement identifier associated with the event that triggered the measurement report.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a beam signal threshold, and the measurement report includes results of measurements performed by the wireless device on each serving cell for the beams with beam signal qualities better than the beam signal threshold of a measurement object associated with the serving cell.

In particular embodiments, each measurement configuration of the plurality of measurement configurations includes a reference signal type, and the measurement report includes results of measurements performed by the wireless device on each serving cell based on the reference signal type of the report configuration of the measurement configuration with the measurement identifier associated with the event that triggered the measurement report, wherein the reference signal type comprises at least one of a CSI-RS or a SS.

In particular embodiments, the measurement report further includes results of measurements on a neighbor cell according to a measurement configuration associated with a serving cell that uses the same frequency as the neighbor cell. The neighbor cell may be one of a plurality of neighbor cells, and based on the performed measurements, the neighbor cell signal quality may be better than the other neighbor cells of the plurality of neighbor cells.

Also disclosed is a computer program product comprises a non-transitory computer readable medium storing computer readable program code, the computer readable program code is operable, when executed by processing circuitry, to perform any of the wireless device methods described above.

Another computer program product comprises a non-transitory computer readable medium storing computer readable program code, the computer readable program code is operable, when executed by processing circuitry, to perform any of the network node methods described above.

According to some embodiments, a wireless device is associated with a plurality of serving cells. The wireless device comprises an obtaining unit, a measuring unit and a transmitting unit. The obtaining unit is operable to obtain a plurality of measurement configurations from a network node. Each measurement configuration of the plurality of measurement configurations comprising a measurement identifier, a measurement object, and a report configuration. The measuring unit is operable to perform measurements on each serving cell of the plurality of serving cells according to at least one measurement configuration of the plurality of measurement configurations. The transmitting unit is operable to, when a measurement report associated with a measurement identifier is triggered, report results of the performed measurements for the plurality of serving cells to a network node according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

According to some embodiments, a network node comprises a configuring unit and a receiving unit. The configuring unit is operable to transmit a plurality of measurement configurations to a wireless device for configuring measurements on a plurality of serving cells. Each measurement configuration of the plurality of measurement configurations comprises a measurement identifier, a measurement object, and a report configuration. The receiving unit is operable to receive, from the wireless device, a measurement report that includes results of measurements performed by the wireless device on each serving cell of the plurality of serving cells according to a report configuration of a measurement configuration with a measurement identifier associated with the event that triggered the measurement report.

Certain embodiments may provide one or more of the following technical advantages. For example, particular embodiments provide flexibility for a network to configure a measurement configuration with a reduced measurement report size but that still includes the relevant information from a UE.

DETAILED DESCRIPTION

As described above, there currently exist certain challenges with measurement configuration in Third Generation Partnership Project (3GPP) fifth generation (5G) new radio (NR). For example, a user equipment (UE) always includes primary cell (PCell) and secondary cells (SCells) measurements in the measurement report. The UE always performs reference signal received power (RSRP) and reference signal received quality (RSRQ) measurements for all the serving cells. The reporting configuration provides the RS type to be used for the measurement reporting of the serving cells. The network can also request the UE to include the beam level information for the serving cells. The requirements, however, do not solve all the problems related to measurement reporting, such as: (a) whether to include all quantities (RSRP, RSRQ and signal to interference and noise ratio (SINR)) based reporting for serving cells, and if so, where to find the corresponding configuration; (b) where to configure whether to include the beam level information of the serving cell; (c) how many beams to be included for the serving cell measurements; (d) how to select serving cells' beams to be included in the measurement report; and (e) what type of measurements (RS type, cell and/or beam, RSRP and/or RSRQ and/or SINR) to include for the neighboring cells in the serving frequencies.

Certain aspects of the present disclosure and their embodiments may provide solutions to these or other challenges. Particular embodiments include methods for a UE to determine which beams are to be reported for the serving cell. Particular embodiments include methods for the UE to determine which cell level measurements are to be reported for the serving cell. Particular embodiments include methods for the UE to determine which neighbor cell level and neighbor cell beam level measurements are to be reported for the serving frequencies.

FIG. 1is a block diagram illustrating example signal transmissions in a wireless network. A network, such as the network described with respect toFIG. 2, may configure UE10with 2 different SCells, SCell-1and SCell-2. The network may also configure the CSI-RS corresponding to the SCells and for the PCell.

As illustrated, PCell may transmit a PCell synchronization signal (SS) block to UE10(i.e., PCell SS Block). SCell-1may transmit a channel state indication reference signal (CSI-RS) to UE10(i.e., SCell-1CSI-RS). SCell-2may transmit a SS Block (i.e., SCell-2SS Block) and a CSI-RS (SCell-2CSI-RS) to UE10.

Some embodiments include beam-level measurement reporting of PCell/PSCell/SCells. Particular embodiments are related to PCell/PSCell/SCells beam level reporting enabling/disabling flag configuration. Based on 3GPP specifications, the UE shall include the beam level measurements of PCell/PSCell/SCells in the measurement report if the network has configured the UE to do so. Where to provide the information, however, is not specified.

In some embodiments, a UE includes beam level measurements of PCell/PSCell/SCells only if the beam level reporting is enabled in the reportConfig for the corresponding measID that triggered the measurement report. The embodiment ensures that the UE provides the relevant information to the network without adding complexity.

Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, if the beamLevelReporting in the reportConfig associated with the measId is enabled, then include the beam measurements results for PCell/PSCell/SCells.

In some embodiments, the UE includes beam level measurements of PCell/PSCell/SCells only if the PCell/PSCell/SCells specific beam level reporting is enabled in the reportConfig for the corresponding measID that triggered the measurement report. This enables the network to get beam level reporting of only the measObject that triggered the measurement report, rather than getting beam level information for all serving cells.

Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, if the servingCellBeamLevelReporting in the reportConfig associated with the measId is enabled, then include the beam measurements results for PCell/PSCell/SCells.

In some embodiments, the UE includes beam level measurements of PCell/PSCell/SCells only if the beam level reporting is enabled in the measObject of the respective PCell/PSCell/SCells configurations. This prevents the network from over-burdening the UE with beam level information in the frequencies that have single beam transmission.

Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, if the servingCellBeamLevelReporting in the measObject associated with the configured serving cell is enabled, then include the beam measurement results for that serving cell.

Some embodiments are related to measurement quantities related configuration for PCell/PSCell/SCells beam level reporting. U.S. Provisional Application 62/544,379, filed on Aug. 11, 2017, describes a RSType to be used for beam level reporting of PCell/PSCell/SCells. Particular embodiments described herein further describe how to select the beams to be reported for PCell/PSCell/SCells, how many beams to be reported per PCell/PSCell/SCells, which RSType to be used for the beam reporting, and where the PCell/PSCell/SCells reporting related configuration is located.

In some embodiments, the UE includes only those quantities that are configured in the reportConfig for the corresponding measID that triggered the measurement report. The embodiment ensures that the UE provides the relevant information to the network without adding complexity.

Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include the beam measurements results for PCell/PSCell/SCells based on the report quantities of the reportConfig associated with the measId.

In some embodiments, the UE includes only those quantities that are configured in the measObjects of the individual PCell/PSCell/SCells for the reporting of respective PCell/PSCell/SCells' beam level measurements (e.g., servingCellBeamReportQuantity in the ASN.1 specified below). Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include the beam measurements results for PCell/PSCell/SCells based on the report quantities as configured in the servingCellBeamReportQuantity field of the measObject.

An example of how this information is configured is provided in the ASN.1 below (only relevant sections are provided).

MeasObjectNR Information Element

In some embodiments, the UE includes only those quantities that are configured in the measConfig for the corresponding measID that triggered the measurement report (e.g., servingCellBeamReportQuantity in the ASN.1 specified below). Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include the beam measurements results for PCell/PSCell/SCells based on the report quantities as configured in the servingCellBeamReportQuantity field of the measConfig.

An example of how this information is configured is provided in the ASN.1 below (only relevant sections are provided)

MeasConfig Information Element

In some embodiments, the UE includes all the available measurement quantities of the PCell/PSCell/SCells. Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include all the beam level measurements results for PCell/PSCell/SCells.

Particular embodiments are related to selection of beams to be reported for PCell/PSCell/SCells beam level reporting. For the beams to be included in the measurement report, the UE can include the strongest X number of beams that are above a threshold (the threshold as configured for the cell quality derivation). The value of X (in reportConfig for example) and the threshold (in measObject for example) may be network configured.

If the UE is configured with multiple SCells, then the UE will have more than one measObject and thus possibly different threshold values. When it comes to beam level reporting of the PCell/PSCell/SCells, the UE has different ways to choose the beam that is potentially included in the measurement report.

In some embodiments, the UE uses the threshold defined in the measObject related to respective PCell/SCells/PSCell measObject (i.e., UE will always perform beam selection based on the respective measurement object specific configurations). Based on this embodiment, a specification may include the following. When a measurement report is triggered associated to a given measId, include the beam measurements results of PCell/PSCell/SCells based on the beam measurements of PCell/PSCell/SCells that are above the threshold as configured in the respective measObject of the PCell/PSCell/SCell,

In some embodiments, the UE uses the threshold defined in the measObject related to the measId that triggered the event (i.e., UE has many beam measurements, but only include the ones above that threshold). Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include the beam measurements results for PCell/PSCell/SCells based on the beam measurements of PCell/PSCell/SCells that are above the threshold as configured in the measObject associated with the measId.

Regarding the number of beams to be included in the measurement report, 3GPP specifies that the reportConfig provides the value of X that acts as the maximum limit on the number of beams to be included in the measurement report.

In some embodiments, the UE includes all the available beam information of PCell/PSCell/SCells independent of the X value as configured in the reportConfig associated to the measId that triggered the measurement report. Providing so much measurement information to the network, however, may result in a significantly large reporting.

Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include the beam measurements results for PCell/PSCell/SCells based on all the beam measurements of PCell/PSCell/SCells that are above the threshold as configured in the measObject associated with this measId. Alternatively, when a measurement report is triggered associated to a given measId, include the beam measurement results of PCell/PSCell/SCells based on all the beam measurements of PCell/PSCell/SCells that are above the threshold as configured in the respective measObject of the PCell/PSCell/SCell.

In some embodiments, the UE includes up to X beams, beams including those of the PCell/PSCell/SCells, wherein the value X is configured in the reportConfig associated to the measId that triggered the measurement report. This restricts the measurement report size to a smaller size.

Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include up to X strongest beams based on the X as configured in the reportConfig associated with the measId that triggered the measurement report based on: (a) the X strongest beams are chosen from amongst the PCell/PSCell/SCells and the cells in the cellsTriggeredList; or (b) the beam measurements of PCell/PSCell/SCells that are above the threshold as configured in the measObject associated with this measId. Alternatively, when a measurement report is triggered associated to a given measId, include up to X strongest beams based on the X as configured in the reportConfig associated with the measId that triggered the measurement report based on: (a) the X strongest beams are chosen from among the PCell/PSCell/SCells and the cells in the cellsTriggeredList; or (b) all the beam measurements of PCell/PSCell/SCells that are above the threshold as configured in the respective measObject of the PCell/PScell/Scell.

Particular embodiments include cell-level measurement reporting of PCell/PSCell/SCells. The reference signal to be used for serving cell reporting may be configured in reporting config. A specification may include the following. When a measurement report is triggered associated to a given measId, include the available measurements results for PCell/PSCell/SCells based on the same RSType of the reportConfig associated with this measId.

Although the 3GPP specification may provide the UE information related to what reference signal type to use for the measurements, it does not specify which quantities are supposed to be reported by the UE. Currently, the UE always perform RSRP and RSRQ based measurements (i.e., if a measurement report is triggered associated to any measurement ID, the UE includes all available measurement results for PCell and configured SCells).

However, reporting both RSRP and RSRQ (and possibly SINR) for all the PCell/PSCell/SCells could be unnecessary in most scenarios as the network might use only one of those measurement quantities. Also, as the number of configured SCells increases, the overhead may be large. The following embodiments provide ways to resolve this problem.

In some embodiments, the UE includes only those quantities that are configured in the reportConfig for the corresponding measID that triggered the measurement report. Based on this embodiment, a specification might include the following. When a measurement report is triggered associated to a given measId, include the cell level measurements results for PCell/PSCell/SCells based on the report quantities of the reportConfig associated with the measId.

In some embodiments, the UE includes only those quantities that are configured in the measObjects of the individual PCell/PSCell/SCells for the reporting of respective PCell/PSCell/SCells' measurements (e.g., servingCellReportQuantity in the ASN.1 specified below). Based on this embodiment, a specification may include the following. When a measurement report is triggered associated to a given measId, include the cell level measurements results for PCell/PSCell/SCells based on the report quantities as configured in the servingCellReportQuantity field of the measObject.

An example of how this information is configured is provided in the ASN.1 below (only relevant sections are provided).

MeasObjectNR Information Element

In some embodiments, the UE includes only those quantities that are configured in the measConfig for the corresponding measID that triggered the measurement report (e.g., servingCellReportQuantity in the ASN.1 specified below). Based on this embodiment, a specification may include the following. When a measurement report is triggered associated to a given measId, include the cell level measurements results for PCell/PSCell/SCells based on the report quantities as configured in the servingCellReportQuantity field of the measConfig.

An example of how this information is configured is provided in the ASN.1 below (only relevant sections are provided).

MeasConfig Information Element

In some embodiments, the UE includes all available quantities of the PCell/PSCell/SCells. Based on this embodiment, a specification may include the following. When a measurement report is triggered associated to a given measId, include all the cell level measurements results for PCell/PSCell/SCells.

Particular embodiments include neighbor cell measurement reporting in serving frequencies. The network can configure the UE to report best neighbor cells in the serving frequencies. In LTE, the reportConfig provides information about whether to include neighbor cell measurements. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, then for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, set the measResultServFreqList to include within measResultBestNeighCell the physCellId and the quantities of the best non-serving cell, based on RSRP, on the concerned serving frequency.

3GPP, however, does not specify whether the UE needs to include beam level measurements of the neighbor cells in the serving frequencies, what measurement quantities are included in the measurement report for cell level measurements and beam level measurements, and what reference signal type to be considered for the measurements. Particular embodiments include beam level reporting of neighbor cell in serving frequencies.

In some embodiments, the UE does not include beam level measurements of serving frequency neighbor cells at all. This reduces the measurement report overhead. However, it limits the information provided to the network that that may help in decision making (e.g., handover/CA set-up, etc.).

In some embodiments, the UE includes beam level measurements of serving frequency neighbor cells only if the beam level reporting is enabled in the reportConfig for the corresponding measID that triggered the measurement report. The embodiment ensures that the UE provides the relevant information to the network without adding complexity. The beam measurements might not be reported if there are other eligible beams to be reported and a limitation of X beams is used.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, if the reportConfig associated with the measId that triggered the measurement reporting includes includeBeamLevelReporting and is set to TRUE, then include the beam level measurements related to the best neighbor cell for the corresponding serving frequency for reporting as part of the evaluation of best X beams to be reported as configured in the reportConfig associated with the measId that triggered the measurement report.

In some embodiments, the UE includes beam level measurements of serving frequency neighbor cells only if the beam level reporting is enabled in the measObject of the corresponding serving frequency. This embodiment provides a unique method for the network to limit neighbor cell information to particular serving frequencies (e.g., frequencies deemed important at any particular time). The beam measurements might not be reported if there are other eligible beams to be reported and a limitation of X beams is used.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, if the measObject associated with the serving frequency includes includeBeamLevelReporting and is set to TRUE, then include the beam level measurements related to the best neighbor cell for the corresponding serving frequency for reporting as part of the evaluation of best X beams to be reported as configured in the reportConfig associated with the measId that triggered the measurement report.

Particular embodiments include measurement quantities to be reported for the cell/beam level reporting of neighbor cell in serving frequencies. In some embodiments, the UE includes the measurement quantities related to the neighbor cell of the serving frequencies that are configured in the reportConfig for the corresponding measID that triggered the measurement report. The embodiment ensures that the UE provides the relevant information to the network without adding complexity.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, include the beam level measurement quantities of the best neighbor cell as configured in the reportConfig associated with the measId that triggered the measurement report.

In some embodiments, the UE includes those measurement quantities related to the neighbor cell of the serving frequencies that are configured in the measObject of the corresponding serving frequency. This provides the flexibility for reporting specific quantities for specific frequencies.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, include the beam level measurement quantities of the best neighbor cell as configured in the servingCellBeamReportQuantity as configured in the corresponding measObject.

In some embodiments, the UE includes the measurement quantities related to the neighbor cell of the serving frequencies that are configured in the measConfig of the corresponding serving frequency (servingCellBeamReportQuantity). This provides the flexibility to report specific quantities for specific frequencies.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, include the beam level measurement quantities of the best neighbor cell as configured in the servingCellBeamReportQuantity as configured in the corresponding measConfig.

Particular embodiments include a reference signal type to be used for the cell/beam level reporting of neighbor cell in serving frequencies. In some embodiments, the UE includes the measurements of the best neighbor cell (cell level embodiments are described, but similar embodiments apply for beam measurement) of the serving frequencies that are based on the reference signal type configured in the reportConfig for the corresponding measID that triggered the measurement report. The embodiment ensures that the UE provides the relevant information to the network without adding complexity.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, include the cell level measurements of the best neighbor cell measured based on the RSType as configured in the reportConfig associated with the measId that triggered the measurement report.

In some embodiments, the UE includes the cell (cell level embodiments are described, but similar embodiments apply for beam measurement) level measurements based on the reference signal type as configured in the measObject of the corresponding serving frequency. This provides the flexibility for specific reference signal type-based measurements for specific frequencies.

Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, include the cell level measurements of the best neighbor cell measured based on the RSType as configured in the measObject of the corresponding serving frequency.

In some embodiments, the UE includes the cell (cell level embodiments are described, but similar embodiments apply for beam measurement) level measurements based on the reference signal type as configured in the measConfig. Based on this embodiment, a specification may include the following. If the reportConfig associated with the measId that triggered the measurement reporting includes reportAddNeighMeas, for each serving frequency for which measObjectId is referenced in the measIdList, other than the frequency corresponding with the measId that triggered the measurement reporting, include the cell level measurements of the best neighbor cell measured based on the RSType as configured in the measConfig.

InFIG. 2, network node160includes processing circuitry170, device readable medium180, interface190, auxiliary equipment184, power source186, power circuitry187, and antenna162. Although network node160illustrated in the example wireless network ofFIG. 2may represent a device that includes the illustrated combination of hardware components, other embodiments may comprise network nodes with different combinations of components. It is to be understood that a network node comprises any suitable combination of hardware and/or software needed to perform the tasks, features, functions and methods disclosed herein. Moreover, while the components of network node160are depicted as single boxes located within a larger box, or nested within multiple boxes, in practice, a network node may comprise multiple different physical components that make up a single illustrated component (e.g., device readable medium180may comprise multiple separate hard drives as well as multiple RAM modules).

Processing circuitry170may comprise a combination of one or more of a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application-specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or combination of hardware, software and/or encoded logic operable to provide, either alone or in conjunction with other network node160components, such as device readable medium180, network node160functionality. For example, processing circuitry170may execute instructions stored in device readable medium180or in memory within processing circuitry170. Such functionality may include providing any of the various wireless features, functions, or benefits discussed herein. In some embodiments, processing circuitry170may include a system on a chip (SOC).

Interface190is used in the wired or wireless communication of signaling and/or data between network node160, network106, and/or WDs110. As illustrated, interface190comprises port(s)/terminal(s)194to send and receive data, for example to and from network106over a wired connection. Interface190also includes radio front end circuitry192that may be coupled to, or in certain embodiments a part of, antenna162. Radio front end circuitry192comprises filters198and amplifiers196. Radio front end circuitry192may be connected to antenna162and processing circuitry170. Radio front end circuitry may be configured to condition signals communicated between antenna162and processing circuitry170. Radio front end circuitry192may receive digital data that is to be sent out to other network nodes or WDs via a wireless connection. Radio front end circuitry192may convert the digital data into a radio signal having the appropriate channel and bandwidth parameters using a combination of filters198and/or amplifiers196. The radio signal may then be transmitted via antenna162. Similarly, when receiving data, antenna162may collect radio signals which are then converted into digital data by radio front end circuitry192. The digital data may be passed to processing circuitry170. In other embodiments, the interface may comprise different components and/or different combinations of components.

Power circuitry187may comprise, or be coupled to, power management circuitry and is configured to supply the components of network node160with power for performing the functionality described herein. Power circuitry187may receive power from power source186. Power source186and/or power circuitry187may be configured to provide power to the various components of network node160in a form suitable for the respective components (e.g., at a voltage and current level needed for each respective component). Power source186may either be included in, or external to, power circuitry187and/or network node160. For example, network node160may be connectable to an external power source (e.g., an electricity outlet) via an input circuitry or interface such as an electrical cable, whereby the external power source supplies power to power circuitry187. As a further example, power source186may comprise a source of power in the form of a battery or battery pack which is connected to, or integrated in, power circuitry187. The battery may provide backup power should the external power source fail. Other types of power sources, such as photovoltaic devices, may also be used.

Antenna111may include one or more antennas or antenna arrays, configured to send and/or receive wireless signals, and is connected to interface114. In certain alternative embodiments, antenna111may be separate from WD110and be connectable to WD110through an interface or port. Antenna111, interface114, and/or processing circuitry120may be configured to perform any receiving or transmitting operations described herein as being performed by a WD. Any information, data and/or signals may be received from a network node and/or another WD. In some embodiments, radio front end circuitry and/or antenna111may be considered an interface.

As illustrated, interface114comprises radio front end circuitry112and antenna111. Radio front end circuitry112comprise one or more filters118and amplifiers116. Radio front end circuitry114is connected to antenna111and processing circuitry120and is configured to condition signals communicated between antenna111and processing circuitry120. Radio front end circuitry112may be coupled to or a part of antenna111. In some embodiments, WD110may not include separate radio front end circuitry112; rather, processing circuitry120may comprise radio front end circuitry and may be connected to antenna111. Similarly, in some embodiments, some or all of RF transceiver circuitry122may be considered a part of interface114. Radio front end circuitry112may receive digital data that is to be sent out to other network nodes or WDs via a wireless connection. Radio front end circuitry112may convert the digital data into a radio signal having the appropriate channel and bandwidth parameters using a combination of filters118and/or amplifiers116. The radio signal may then be transmitted via antenna111. Similarly, when receiving data, antenna111may collect radio signals which are then converted into digital data by radio front end circuitry112. The digital data may be passed to processing circuitry120. In other embodiments, the interface may comprise different components and/or different combinations of components.

As illustrated, processing circuitry120includes one or more of RF transceiver circuitry122, baseband processing circuitry124, and application processing circuitry126. In other embodiments, the processing circuitry may comprise different components and/or different combinations of components. In certain embodiments processing circuitry120of WD110may comprise a SOC. In some embodiments, RF transceiver circuitry122, baseband processing circuitry124, and application processing circuitry126may be on separate chips or sets of chips. In alternative embodiments, part or all of baseband processing circuitry124and application processing circuitry126may be combined into one chip or set of chips, and RF transceiver circuitry122may be on a separate chip or set of chips. In still alternative embodiments, part or all of RF transceiver circuitry122and baseband processing circuitry124may be on the same chip or set of chips, and application processing circuitry126may be on a separate chip or set of chips. In yet other alternative embodiments, part or all of RF transceiver circuitry122, baseband processing circuitry124, and application processing circuitry126may be combined in the same chip or set of chips. In some embodiments, RF transceiver circuitry122may be a part of interface114. RF transceiver circuitry122may condition RF signals for processing circuitry120.

Processing circuitry120may be configured to perform any determining, calculating, or similar operations (e.g., certain obtaining operations) described herein as being performed by a WD. These operations, as performed by processing circuitry120, may include processing information obtained by processing circuitry120by, for example, converting the obtained information into other information, comparing the obtained information or converted information to information stored by WD110, and/or performing one or more operations based on the obtained information or converted information, and as a result of said processing making a determination.

User interface equipment132may provide components that allow for a human user to interact with WD110. Such interaction may be of many forms, such as visual, audial, tactile, etc. User interface equipment132may be operable to produce output to the user and to allow the user to provide input to WD110. The type of interaction may vary depending on the type of user interface equipment132installed in WD110. For example, if WD110is a smart phone, the interaction may be via a touch screen; if WD110is a smart meter, the interaction may be through a screen that provides usage (e.g., the number of gallons used) or a speaker that provides an audible alert (e.g., if smoke is detected). User interface equipment132may include input interfaces, devices and circuits, and output interfaces, devices and circuits. User interface equipment132is configured to allow input of information into WD110and is connected to processing circuitry120to allow processing circuitry120to process the input information. User interface equipment132may include, for example, a microphone, a proximity or other sensor, keys/buttons, a touch display, one or more cameras, a USB port, or other input circuitry. User interface equipment132is also configured to allow output of information from WD110, and to allow processing circuitry120to output information from WD110. User interface equipment132may include, for example, a speaker, a display, vibrating circuitry, a USB port, a headphone interface, or other output circuitry. Using one or more input and output interfaces, devices, and circuits, of user interface equipment132, WD110may communicate with end users and/or the wireless network and allow them to benefit from the functionality described herein.

Auxiliary equipment134is operable to provide more specific functionality which may not be generally performed by WDs. This may comprise specialized sensors for doing measurements for various purposes, interfaces for additional types of communication such as wired communications etc. The inclusion and type of components of auxiliary equipment134may vary depending on the embodiment and/or scenario.

Power source136may, in some embodiments, be in the form of a battery or battery pack. Other types of power sources, such as an external power source (e.g., an electricity outlet), photovoltaic devices or power cells, may also be used. WD110may further comprise power circuitry137for delivering power from power source136to the various parts of WD110which need power from power source136to carry out any functionality described or indicated herein. Power circuitry137may in certain embodiments comprise power management circuitry. Power circuitry137may additionally or alternatively be operable to receive power from an external power source; in which case WD110may be connectable to the external power source (such as an electricity outlet) via input circuitry or an interface such as an electrical power cable. Power circuitry137may also in certain embodiments be operable to deliver power from an external power source to power source136. This may be, for example, for the charging of power source136. Power circuitry137may perform any formatting, converting, or other modification to the power from power source136to make the power suitable for the respective components of WD110to which power is supplied.

RAM217may be configured to interface via bus202to processing circuitry201to provide storage or caching of data or computer instructions during the execution of software programs such as the operating system, application programs, and device drivers. ROM219may be configured to provide computer instructions or data to processing circuitry201. For example, ROM219may be configured to store invariant low-level system code or data for basic system functions such as basic input and output (I/O), startup, or reception of keystrokes from a keyboard that are stored in a non-volatile memory. Storage medium221may be configured to include memory such as RAM, ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic disks, optical disks, floppy disks, hard disks, removable cartridges, or flash drives. In one example, storage medium221may be configured to include operating system223, application program225such as a web browser application, a widget or gadget engine or another application, and data file227. Storage medium221may store, for use by UE200, any of a variety of various operating systems or combinations of operating systems.

InFIG. 3, processing circuitry201may be configured to communicate with network243busing communication subsystem231. Network243aand network243bmay be the same network or networks or different network or networks. Communication subsystem231may be configured to include one or more transceivers used to communicate with network243b. For example, communication subsystem231may be configured to include one or more transceivers used to communicate with one or more remote transceivers of another device capable of wireless communication such as another WD, UE, or base station of a radio access network (RAN) according to one or more communication protocols, such as IEEE 802.2, CDMA, WCDMA, GSM, LTE, UTRAN, WiMax, or the like, Each transceiver may include transmitter233and/or receiver235to implement transmitter or receiver functionality, respectively, appropriate to the RAN links (e.g., frequency allocations and the like). Further, transmitter233and receiver235of each transceiver may share circuit components, software or firmware, or alternatively may be implemented separately.

FIG. 4is a flowchart illustrating an example method in a wireless device for measurement configuration and reporting, according to certain embodiments. In particular embodiments, one or more steps ofFIG. 4may be performed by wireless device110described with respect toFIG. 2.

The method begins at step4112with a wireless device (e.g., wireless device110) obtaining a plurality of measurement configurations from a network node (e.g., network node160). The wireless device may be associated with a plurality of serving cells. Each measurement configuration includes a measurement identifier, a measurement object, and a report configuration. One or more measurement configurations may apply to the carrier frequencies of one or more of the serving cells. The measurement configuration may include any of the measurement configurations of the embodiments and examples described above.

For example, each measurement configuration of the plurality of measurement configurations may include one or more of an indication of whether beam level measurement is enabled for the associated serving cell, a number of beams to measure, a signal threshold, and/or a reference signal to measure (e.g., CSI-RS, SS, etc.) for the associated carrier frequency. Obtaining the measurement configuration may comprise receiving a radio resource control (RRC) message, or any other suitable signaling between a network node and a wireless device.

At step4116, the wireless device performs measurements on each serving cell of the plurality of serving cells according to at least one measurement configuration of the plurality of measurement configurations. For example, wireless device110may perform measurements on signals from any or all serving network nodes160.

In particular embodiments, performing measurements on each serving cell comprises performing cell or beam level measurements based on the measurement configuration associated with the measurement identifier for which the measurement report triggering event is received. In some embodiments, performing measurements on each serving cell may comprise performing cell or beam level measurements based on the measurement configuration associated with the serving cell being measured. The wireless device may perform the measurements according to any of the embodiments and examples described above.

At some time, a measurement report associated with a measurement identifier is triggered. For example, wireless device110may detect a triggering event, such as detecting a particular measurement is above or below a threshold. A triggering event may include, but is not limited to, any of the triggering events defined in 3GPP 36.331.

At step4118, the wireless device reports results of the performed measurements to a network node. For example, wireless device110may report measurement results to network node160according to the measurement configuration obtained at step4112. The wireless device may report results of the performed measurements for the plurality of serving cells to a network node according to the report configuration of the measurement configuration with the measurement identifier associated with the triggered event.

At step4129, the wireless device may report results of measurements on a neighbor cell to a network node. In particular embodiments, the wireless device may report results according to a measurement configuration associated with a serving cell that uses the same frequency as the neighbor cell. The neighbor cell may be one of a plurality of neighbor cells, and based on the performed measurements, the neighbor cell signal quality may be better than the other neighbor cells of the plurality of neighbor cells. The wireless device may report the measurements according to any of the embodiments and examples described above.

Modifications, additions, or omissions may be made to method4100ofFIG. 4. Additionally, one or more steps in the method ofFIG. 4may be performed in parallel or in any suitable order.

FIG. 5is a flowchart illustrating an example method in a network node for measurement configuration, according to certain embodiments. In particular embodiments, one or more steps ofFIG. 5may be performed by network node160described with respect toFIG. 2.

The method begins at step5112, wherein a network node (e.g., network node160) transmits a plurality of measurement configurations to a wireless device (e.g., wireless device110) for configuring measurements on a plurality of serving cells. Each measurement configuration of the plurality of measurement configurations comprises a measurement identifier, a measurement object, and a report configuration. The measurement configuration may include any of the measurement configurations of the embodiments and examples described above.

For example, each measurement configuration of the plurality of measurement configurations may include one or more of an indication of whether beam level measurement is enabled for the associated serving cell, a number of beams to measure, a signal threshold, and/or a reference signal type (e.g., CSI-RS, SS, etc.) for the associated serving cell. Transmitting the measurement configuration may comprise transmitting a RRC message, or any other suitable signaling between a network node and a wireless device.

At step5114, the network node receives, from the wireless device, a measurement report that includes results of measurements performed by the wireless device on each serving cell of the plurality of serving cells according to a report configuration of a measurement configuration with a measurement identifier associated with the event that triggered the measurement report.

In particular embodiments, the measurement report includes results of measurements performed by the wireless device on each serving cell by performing cell or beam level measurements based on the measurement configuration associated with the measurement identification for which the wireless device received a measurement report triggering event. The measurement report may include results of measurements performed by the wireless device on each serving cell by performing cell or beam level measurements based on the measurement configuration associated with the serving cell being measured.

In particular embodiments, the measurement report further includes results of measurements the wireless device performed on a neighbor cell according to at least one measurement configuration of the plurality of measurement configurations. The measurements the wireless device performed on the neighbor cell may have been performed based on the measurement configuration associated with the serving cell for which the wireless device received a measurement report triggering event. The measurements the wireless device performed on the neighbor cell may have been performed based on the measurement configuration associated with a serving cell that uses the same frequency as the neighbor cell.

Modifications, additions, or omissions may be made to method5100ofFIG. 5. Additionally, one or more steps in the method ofFIG. 5may be performed in parallel or in any suitable order.

FIG. 6illustrates an example wireless device, according to certain embodiments. The apparatus may be implemented in a wireless device (e.g., wireless device110shown inFIG. 2). Apparatus1600is operable to carry out the example method described with reference toFIG. 4and possibly any other processes or methods disclosed herein. It is also to be understood that the method ofFIG. 4is not necessarily carried out solely by apparatus1600. At least some operations of the method can be performed by one or more other entities, including virtual apparatuses.

As illustrated inFIG. 6, apparatus1600includes obtaining unit1602, measuring unit1606, and transmitting unit1608. In certain embodiments, obtaining unit1602may receive measurement configurations for a plurality of serving cells from network node160. The measurement configurations may comprise any of the measurement configurations in the embodiments and examples described above. Measuring unit1606may measure signals from one or more serving cells. The measuring may be in accordance with one of the obtained measurement configurations. Transmitting unit1608may transmit a measurement report to a network node.

FIG. 7illustrates an example network node, according to certain embodiments. The apparatus may be implemented in a network node (e.g., network node160shown inFIG. 2). Apparatus1700is operable to carry out the example method described with reference toFIG. 5and possibly any other processes or methods disclosed herein. It is also to be understood that the method ofFIG. 5is not necessarily carried out solely by apparatus1700. At least some operations of the method can be performed by one or more other entities, including virtual apparatuses.

As illustrated inFIG. 7, apparatus1700includes configuring unit1702and receiving unit1704. In certain embodiments, configuring unit1704may transmit measurement configurations to a wireless device. Receiving unit1704may receive a measurement report from the wireless device.

In some embodiments, some signaling can be effected with the use of control system3230which may alternatively be used for communication between the hardware nodes330and radio units3200.

With reference toFIG. 9, in accordance with an embodiment, a communication system includes telecommunication network410, such as a 3GPP-type cellular network, which comprises access network411, such as a radio access network, and core network414. Access network411comprises a plurality of base stations412a,412b,412c, such as NBs, eNBs, gNBs or other types of wireless access points, each defining a corresponding coverage area413a,413b,413c. Each base station412a,412b,412cis connectable to core network414over a wired or wireless connection415. A first UE491located in coverage area413cis configured to wirelessly connect to, or be paged by, the corresponding base station412c. A second UE492in coverage area413ais wirelessly connectable to the corresponding base station412a. While a plurality of UEs491,492are illustrated in this example, the disclosed embodiments are equally applicable to a situation where a sole UE is in the coverage area or where a sole UE is connecting to the corresponding base station412.

Communication system500further includes base station520provided in a telecommunication system and comprising hardware525enabling it to communicate with host computer510and with UE530. Hardware525may include communication interface526for setting up and maintaining a wired or wireless connection with an interface of a different communication device of communication system500, as well as radio interface527for setting up and maintaining at least wireless connection570with UE530located in a coverage area (not shown inFIG. 10) served by base station520. Communication interface526may be configured to facilitate connection560to host computer510. Connection560may be direct, or it may pass through a core network (not shown inFIG. 10) of the telecommunication system and/or through one or more intermediate networks outside the telecommunication system. In the embodiment shown, hardware525of base station520further includes processing circuitry528, which may comprise one or more programmable processors, application-specific integrated circuits, field programmable gate arrays or combinations of these (not shown) adapted to execute instructions. Base station520further has software521stored internally or accessible via an external connection.

It is noted that host computer510, base station520and UE530illustrated inFIG. 10may be similar or identical to host computer430, one of base stations412a,412b,412cand one of UEs491,492ofFIG. 9, respectively. This is to say, the inner workings of these entities may be as shown inFIG. 5and independently, the surrounding network topology may be that ofFIG. 9.

Wireless connection570between UE530and base station520is in accordance with the teachings of the embodiments described throughout this disclosure. One or more of the various embodiments improve the performance of OTT services provided to UE530using OTT connection550, in which wireless connection570forms the last segment. More precisely, the teachings of these embodiments may improve the signaling overhead and reduce latency, which may provide faster internet access for users.

The foregoing description sets forth numerous specific details. It is understood, however, that embodiments may be practiced without these specific details. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of this description. Those of ordinary skill in the art, with the included descriptions, will be able to implement appropriate functionality without undue experimentation.

At least some of the following abbreviations may be used herein. If there is an inconsistency between abbreviations, preference should be given to how it is used above.

Abbreviation Explanation

3GPP 3rd Generation Partnership Project

ABS Almost Blank Subframe

ARQ Automatic Repeat Request

AWGN Additive White Gaussian Noise

BCCH Broadcast Control Channel

BCH Broadcast Channel

CA Carrier Aggregation

CC Carrier Component

CCCH SDU Common Control Channel SDU

CDMA Code Division Multiplexing Access

CGI Cell Global Identifier

CIR Channel Impulse Response

CP Cyclic Prefix

CPICH Common Pilot Channel

CPICH Ec/No CPICH Received energy per chip divided by the power density in the band

CQI Channel Quality information

CSI Channel State Information

DCCH Dedicated Control Channel

DL Downlink

DM Demodulation

DMRS Demodulation Reference Signal

DRX Discontinuous Reception

DTX Discontinuous Transmission

DTCH Dedicated Traffic Channel

DUT Device Under Test

E-SMLC Evolved-Serving Mobile Location Centre

ePDCCH enhanced Physical Downlink Control Channel

E-SMLC evolved Serving Mobile Location Center

FDD Frequency Division Duplex

GERAN GSM EDGE Radio Access Network

gNB Base station in NR

GNSS Global Navigation Satellite System

GSM Global System for Mobile communication

HARQ Hybrid Automatic Repeat Request

HO Handover

HSPA High Speed Packet Access

HRPD High Rate Packet Data

LOS Line of Sight

LPP LTE Positioning Protocol

MAC Medium Access Control

MBMS Multimedia Broadcast Multicast Services

MBSFN Multimedia Broadcast multicast service Single Frequency Network

MDT Minimization of Drive Tests

MIB Master Information Block

MME Mobility Management Entity

MSC Mobile Switching Center

NPDCCH Narrowband Physical Downlink Control Channel

NR New Radio

OFDM Orthogonal Frequency Division Multiplexing

OFDMA Orthogonal Frequency Division Multiple Access

OSS Operations Support System

OTDOA Observed Time Difference of Arrival

O&M Operation and Maintenance

PBCH Physical Broadcast Channel

P-CCPCH Primary Common Control Physical Channel

PCell Primary Cell

PCFICH Physical Control Format Indicator Channel

PDCCH Physical Downlink Control Channel

PDP Profile Delay Profile

PDSCH Physical Downlink Shared Channel

PGW Packet Gateway

PLMN Public Land Mobile Network

PMI Precoder Matrix Indicator

PRACH Physical Random Access Channel

PRS Positioning Reference Signal

PSS Primary Synchronization Signal

PUCCH Physical Uplink Control Channel

PUSCH Physical Uplink Shared Channel

RACH Random Access Channel

QAM Quadrature Amplitude Modulation

RAN Radio Access Network

RAT Radio Access Technology

RLM Radio Link Management

RNC Radio Network Controller

RNTI Radio Network Temporary Identifier

RRC Radio Resource Control

RRM Radio Resource Management

RS Reference Signal

RSCP Received Signal Code Power

RSRP Reference Symbol Received Power OR

Reference Signal Received Power

RSRQ Reference Signal Received Quality OR

Reference Symbol Received Quality

RSSI Received Signal Strength Indicator

RSTD Reference Signal Time Difference

SCH Synchronization Channel

SCell Secondary Cell

SDU Service Data Unit

SFN System Frame Number

SINR Signal to Interference plus Noise Ratio

SGW Serving Gateway

SI System Information

SIB System Information Block

SNR Signal to Noise Ratio

SON Self Optimized Network

SS Synchronization Signal

SSS Secondary Synchronization Signal

TDD Time Division Duplex

TDOA Time Difference of Arrival

TOA Time of Arrival

TSS Tertiary Synchronization Signal

TTI Transmission Time Interval

UE User Equipment

UL Uplink

UMTS Universal Mobile Telecommunication System

USIM Universal Subscriber Identity Module

UTDOA Uplink Time Difference of Arrival

UTRA Universal Terrestrial Radio Access

UTRAN Universal Terrestrial Radio Access Network

WCDMA Wide CDMA

WLAN Wide Local Area Network