WO2019160494A1 - Mesure de porteuses sans ancrage - Google Patents

Mesure de porteuses sans ancrage Download PDF

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Publication number
WO2019160494A1
WO2019160494A1 PCT/SE2019/050137 SE2019050137W WO2019160494A1 WO 2019160494 A1 WO2019160494 A1 WO 2019160494A1 SE 2019050137 W SE2019050137 W SE 2019050137W WO 2019160494 A1 WO2019160494 A1 WO 2019160494A1
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WIPO (PCT)
Prior art keywords
measurement
anchor carrier
wireless device
anchor
network node
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Application number
PCT/SE2019/050137
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English (en)
Inventor
Olof Liberg
Santhan THANGARASA
Muhammad Kazmi
Yutao Sui
Andreas HÖGLUND
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Telefonaktiebolaget Lm Ericsson (Publ)
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Publication of WO2019160494A1 publication Critical patent/WO2019160494A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present disclosure relates to wireless communications, and in particular, to measurements on wireless communication non-anchor carrier(s).
  • NB-IoT NarrowBand Internet of Things
  • NB-IoT may support three basic modes of operations described as follows:
  • Stand-alone operation utilizing, for example, the spectrum being used by Global System for Mobile communications (GSM)/ Exchanged Data rates for GSM Evolution (EDGE) systems as a replacement of one or more GSM carriers.
  • GSM Global System for Mobile communications
  • EDGE Exchanged Data rates for GSM Evolution
  • stand-alone operation may operate on any carrier frequency that is not within the carrier of another system and not within the guard band of another system’s operating carrier.
  • guard band operation utilizing unused resource blocks within a Long Term Evolution (LTE) carrier’s guard-band.
  • LTE Long Term Evolution
  • guard band may also be interchangeably referred to as guard bandwidth.
  • In-band operation utilizing resource blocks within a LTE carrier.
  • the in-band operation may interchangeably be referred to in-bandwidth operation.
  • the minimum system bandwidth in NB-IoT may be 200 kHz.
  • a NB-IoT anchor carrier may be transmitted in the cell.
  • An anchor carrier may support cellular functionality such as synchronization, broadcast of system information, data transmission, as well as paging and random access.
  • the anchor carrier may also be used by wireless devices to perform idle mode measurements such as signal strength (NRSRP) and signal quality (NRSRQ) measurements to support idle mode mobility.
  • Idle mode may refer to a specific Radio Resource Control (RRC) mode, which is RRC Idle mode (RRC IDLE).
  • RRC may include modes such as connected mode (RRC CONNECTED,“connected mode”) and RRC IDLE, as are known in wireless communications.
  • NB-IoT can be configured as a multi-carrier system where the anchor carrier is complemented by a set of non-anchor carriers, each of 200 kHz.
  • the non-anchor carriers may support data transmission in
  • RRC CONNECTED as described in 3GPP Release 13, and may also support paging and random access in RRC IDLE as described in 3GPP Release 14.
  • non anchor carriers are not used for idle mode measurements in 3 GPP Releases 13 and 14, even though the wireless device configured to perform random access and listen to paging on a non-anchor carrier.
  • the wireless device in RRC IDLE may perform measurements on the anchor carrier such that NRS can be omitted on non-anchors when not needed.
  • NB-IoT may not support measurement reporting.
  • the system e.g., network node(s), wireless device(s), etc.
  • 3GPP Release 14 introduced serving cell measurement reporting during the connection setup phase of the wireless device, either in a second uplink message (Msg3) or the third uplink message (Msg5) in an RRC procedure.
  • the wireless device is in idle mode when transmitting Msg3, and Narrowband Reference Signal Received Quality (NRSRQ) measurements performed on the anchor carrier may be the only available idle mode measurement metric in 3GPP Release 14.
  • Anchor carrier Narrowband Registration Request (NRRQ) is hence a candidate to be selected as the metric to be used for reporting.
  • NRS Narrowband Reference Signal
  • NRS is a downlink reference signal on the anchor carrier that may be transmitted in each configured NB-IoT subframe.
  • NRS supports wireless device radio resource and link quality related measurements.
  • NRS may be transmitted over one or two antenna ports, as shown in FIG. 1 where FIG. l is a diagram of NRS mapping of resource elements (REs) on a subframe (1 ms) that is transmitted on a single Physical Resource Block (180 kHz).
  • REs resource elements
  • the NRS may not always be transmitted on the non-anchor carrier, for example, to reduce the interference and enable better resource sharing between NB- IoT and LTE for NB-IoT inband deployment. Therefore, there may be limited occasions where the wireless device can measure the channel quality of the non anchor carrier in idle mode.
  • the wireless device may assume NRSs are transmitted in the NPDCCH candidate where the wireless device finds a DCI with CRC scrambled by the P-RNTI.
  • the wireless device may also assume NRSs are transmitted 10 NB-IoT DL subframes before and 4 NB-IoT DL subframes after the NPDCCH candidate where the wireless device finds a DCI with CRC scrambled by the P-RNTI.
  • the wireless device may assume NRSs are transmitted in the NB-IoT DL subframes carrying the NPDSCH as well as 4 NB-IoT DL subframes before and after the scheduled NPDSCH.
  • NPDSCH Narrowband Physical Downlink Shared Channel
  • the wireless device may assume NRSs are transmitted in the Type-2 Common Search Space (CSS) configured by higher layers, as well as 10 NB-IoT DL subframes before and 4 NB-IoT DL subframes after each Type-2 CSS.
  • SCS Common Search Space
  • the wireless device may assume NRSs are transmitted in the NPDSCH scheduled by the DCI scrambled by the RA-RNTI, as well as 4 NB-IoT downlink (DL) subframes before and after the scheduled NPDSCH.
  • the wireless device may assume NRSs are transmitted in subframes #0, #1, #3, #4 and #9.
  • the wireless device may assume NRSs are transmitted in the Type-2 CSS configured by higher layers, as well as 10 NB-IoT DL subframes before the start of each Type-2 CSS and 4 NB-IoT DL subframes after the end of each Type-2 CSS until the mac- ContentionResolutionTimer expires.
  • C-RNTI Cell Radio Network Temporary Identifier
  • the wireless device may assume NRSs are transmitted in the NPDSCH scheduled by the DCI scrambled by the temporary C-RNTI or C-RNTI as well as 4 NB-IoT DL subframes before and after the scheduled NPDSCH.
  • a NB-IoT wireless device may support Narrowband Reference Signal Received Power (NRSRP) measurements such as:
  • Narrowband Reference signal received power is defined as the linear average over the power contributions (in [W]) of the resource elements that carry narrowband specific reference signals within the considered measurement frequency bandwidth.
  • the narrowband reference signals for the first antenna port (2000) may be used. If the wireless device can reliably detect that a second antenna port (2001) is available it may use the second antenna port in addition to the first antenna port to determine NRSRP.
  • the reference point for the NRSRP shall be the antenna connector of the wireless device. NRSRP measurements in idle mode may only be performed on the anchor carrier.
  • a NB-IoT wireless device may support Narrowband Reference Signal Received Quality (NRSRQ) measurements such as:
  • Narrowband Reference Signal Received Quality is defined as the ratio NRSRP/Narrowband Received Signal Strength Indicator (NRSSI).
  • NRSSI Narrowband Received Signal Strength Indicator
  • Narrowband Received Signal Strength Indicator comprises the linear average of the total received power (in [W]) observed Orthogonal frequency-division multiplexing (OFDM) symbols of measurement subframes, in the measurement bandwidth by the wireless device from all sources, including co-channel serving and non-serving cells, adjacent channel interference, thermal noise etc.
  • OFDM Orthogonal frequency-division multiplexing
  • NRSSI is measured from all OFDM symbols of measurement subframes.
  • the reference point for the NRSRQ shall be the antenna connector of the wireless device.
  • NRSRQ is defined as narrowband Reference Signal Received Power (NRSRP) divided by NRSSI.
  • NRSRP may be defined as the NRS power on a single resource element while NRSSI may be defined as the average power of a OFDM symbol, measured and averaged over a subframe. Due to this definition of NRSSI, NRSRQ may be dependent on a system activity level (or load) in the NRSSI measurement subframes, as shown in FIG. 2 that illustrates a diagram of SINR-Narrowband Reference Signal Received Quality (RSRQ) relation in a case of no load or a case of a fully loaded measurement subframe.
  • RSRQ SINR-Narrowband Reference Signal Received Quality
  • NRSRQ measurements may only be defined for idle mode and may only be performed on the anchor carrier.
  • Some embodiments advantageously provide methods, systems, and apparatuses for measurements on non-anchor carrier(s).
  • the reporting may be based on certain criteria. This can reduce the unnecessary reporting, or reporting of measurements which are less significant, or it can also reduce unnecessary resource utilization.
  • a wireless device configured to communicate with a network node.
  • the wireless device is configured to use an anchor carrier and at least one non-anchor carrier.
  • the wireless device includes processing circuitry configured to receive information for performing at least one measurement of the at least one non-anchor carrier and reporting of the at least one measurement of the at least one non-anchor carrier.
  • the processing circuitry is configured to perform at least one measurement of the at least one non-anchor carrier based at least in part on the received information, and report the at least one measurement of the at least one non-anchor carrier based at least in part on the received information.
  • the received information corresponds to a dynamic indication that triggers the performing of the at least one measurement of the at least one non-anchor carrier.
  • the received information includes at least one measurement criteria where the performing of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one measurement criteria being met.
  • the measurement criteria include a plurality of combinations of potential operational modes of the wireless device where each combination corresponds to an operational mode for the anchor carrier and an operational mode for the non-anchor carrier.
  • the received information includes at least one reporting criteria where the reporting of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one reporting criteria being met.
  • the at least one reporting criteria is based at least in part on at least one operational mode of the wireless device.
  • the at least one reporting criteria is based at least in part on a difference between the at least one measurement of the at least one non-anchor carrier and a measurement of the anchor carrier. According to one or more embodiments of this aspect, the at least one reporting criteria is based at least in part on a coverage level of the non-anchor carrier and a coverage level of the anchor carrier where the coverage level is based at least in part on a measured signal power level.
  • the at least one measurement of the at least one non-anchor carrier includes at least one of a reference signal-signal to noise and interference ratio measurement, signal to noise ratio measurement, signal received quality measurement and signal received power measurement. According to one or more embodiments of this aspect, the
  • the measurement of the at least one non-anchor carrier occurs during Radio Resource Control, RRC, Idle mode.
  • the measurement of the at least one non-anchor carrier includes measuring a reference signal during a non-anchor measurement window.
  • the non-anchor measurement window corresponds to at least a portion of a random access respond, RAR, window.
  • the non-anchor measurement window is defined at least in part by one of a periodically reoccurring radio resource, and one of downlink shared channel and downlink control channel transmissions associated a message in the Radio Resource Control, RRC, procedure.
  • the non-anchor measurement window is defined around Narrowband Physical Downlink Control Channel, NPDCCH, and Narrowband Physical Downlink Shared Channel, NPDSCH, transmission associated with one of NPDSCH random access response message and NPDSCH Radio Resource Control, RRC, connection resume message.
  • a method performed by a wireless device configured to communicate with a network node is provided.
  • the wireless device is configured to use an anchor carrier and at least one non-anchor carrier.
  • Information for performing at least one measurement of the at least one non anchor carrier and reporting of the at least one measurement of the at least one non anchor carrier, is received.
  • At least one measurement of the at least one non-anchor carrier is performed based at least in part on the received information.
  • the at least one measurement of the at least one non-anchor carrier is reported based at least in part on the received information.
  • the received information corresponds to a dynamic indication that triggers the performing of the at least one measurement of the at least one non-anchor carrier.
  • the received information includes at least one measurement criteria where the performing of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one measurement criteria being met.
  • the measurement criteria include a plurality of combinations of potential operational modes of the wireless device where each combination corresponding to an operational mode for the anchor carrier and an operational mode for the non-anchor carrier.
  • the received information includes at least one reporting criteria where the reporting of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one reporting criteria being met.
  • the at least one reporting criteria is based at least in part on at least one operational mode of the wireless device.
  • the at least one reporting criteria is based at least in part on a difference between the at least one measurement of the at least one non-anchor carrier and a measurement of the anchor carrier.
  • the at least one reporting criteria is based at least in part on a coverage level of the non-anchor carrier and a coverage level of the anchor carrier where the coverage level is based at least in part on a measured signal power level.
  • the at least one measurement of the at least one non-anchor carrier includes at least one of a reference signal- signal to noise and interference ratio measurement, signal to noise ratio measurement, signal received quality measurement and signal received power measurement. According to one or more embodiments of this aspect, the
  • the measurement of the at least one non-anchor carrier occurs during Radio Resource Control, RRC, Idle mode.
  • the measurement of the at least one non-anchor carrier includes measuring a reference signal during a non-anchor measurement window.
  • the non-anchor measurement window corresponds to at least a portion of a random access respond, RAR, window.
  • the non-anchor measurement window is defined at least in part by one of a periodically reoccurring radio resource, and one of downlink shared channel and downlink control channel transmissions associated a message in the Radio Resource Control, RRC, procedure.
  • the non-anchor measurement window is defined around Narrowband Physical Downlink Control Channel, NPDCCH, and Narrowband Physical Downlink Shared Channel, NPDSCH, transmission associated with one of NPDSCH random access response message and NPDSCH Radio Resource Control, RRC, connection resume message.
  • NPDCCH Narrowband Physical Downlink Control Channel
  • NPDSCH Narrowband Physical Downlink Shared Channel
  • a network node configured to communicate with a wireless device.
  • the network node includes processing circuitry configured to determine information for the wireless device to perform at least one measurement of at least one non-anchor carrier and report the at least one measurement of the at least one non-anchor carrier.
  • the processing circuitry is configured to signal the information to the wireless device for wireless device operation based at least in part on the information.
  • the information corresponds to a dynamic indication for triggering the performing of the at least one measurement of the at least one non-anchor carrier.
  • the information includes at least one measurement criteria where the performing of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one measurement criteria being met.
  • the at least one measurement criteria includes a plurality of combinations of potential operational modes of the wireless device where each combination corresponds to an operational mode for an anchor carrier and an operational mode for the non-anchor carrier.
  • the information includes at least one reporting criteria where the reporting of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one reporting criteria being met.
  • the at least one reporting criteria is based at least in part on at least one operational mode of the wireless device. According to one or more embodiments of this aspect, the at least one reporting criteria is based at least in part on a difference between the at least one measurement of the at least one non-anchor carrier and a measurement of an anchor carrier.
  • the at least one reporting criteria is based at least in part on a coverage level of the non-anchor carrier and a coverage level of an anchor carrier where the coverage level is based at least in part on a measured signal power level.
  • the at least one measurement of the at least one non-anchor carrier includes at least one of a reference signal-signal to noise and interference ratio measurement, signal to noise ratio measurement, signal received quality measurement and signal received power measurement.
  • the measurement of the at least one non-anchor carrier occurs during Radio Resource Control, RRC, Idle mode.
  • the measurement of the at least one non-anchor carrier includes measuring a reference signal during a non anchor measurement window.
  • the non-anchor measurement window corresponds to at least a portion of a random access respond, RAR, window.
  • the non-anchor measurement window is defined at least in part by one of a periodically reoccurring radio resource, and one of downlink shared channel and downlink control channel transmissions associated a message in the Radio Resource Control, RRC, procedure.
  • the non-anchor measurement window is defined around Narrowband Physical Downlink Control Channel, NPDCCH, and Narrowband Physical Downlink Shared Channel, NPDSCH, transmission associated with one of NPDSCH random access response message and NPDSCH Radio Resource Control, RRC, connection resume message.
  • NPDCCH Narrowband Physical Downlink Control Channel
  • NPDSCH Narrowband Physical Downlink Shared Channel
  • a method performed by a network node configured to communicate with a wireless device is provided.
  • Information for the wireless device to perform at least one measurement of at least one non-anchor carrier and report the at least one measurement of the at least one non-anchor carrier is determined.
  • the information is signalled to the wireless device for wireless device operation based at least in part on the information.
  • the information corresponds to a dynamic indication for triggering the performing of the at least one measurement of the at least one non-anchor carrier.
  • the information includes at least one measurement criteria where the performing of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one measurement criteria being met.
  • the at least one measurement criteria includes a plurality of combinations of potential operational modes of the wireless device where each combination corresponds to an operational mode for an anchor carrier and an operational mode for the non-anchor carrier.
  • the information includes at least one reporting criteria where the reporting of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one reporting criteria being met.
  • the at least one reporting criteria is based at least in part on at least one operational mode of the wireless device. According to one or more embodiments of this aspect, the at least one reporting criteria is based at least in part on a difference between the at least one measurement of the at least one non-anchor carrier and a measurement of an anchor carrier. According to one or more embodiments of this aspect, the at least one reporting criteria is based at least in part on a coverage level of the non-anchor carrier and a coverage level of an anchor carrier where the coverage level is based at least in part on a measured signal power level.
  • the at least one measurement of the at least one non-anchor carrier includes at least one of a reference signal-signal to noise and interference ratio measurement, signal to noise ratio measurement, signal received quality measurement and signal received power measurement.
  • the measurement of the at least one non-anchor carrier occurs during Radio Resource Control, RRC, Idle mode.
  • the measurement of the at least one non-anchor carrier includes measuring a reference signal during a non anchor measurement window.
  • the non-anchor measurement window corresponds to at least a portion of a random access respond, RAR, window.
  • the non-anchor measurement window is defined at least in part by one of a periodically reoccurring radio resource, and one of downlink shared channel and downlink control channel transmissions associated a message in the Radio Resource Control, RRC, procedure.
  • the non-anchor measurement window is defined around Narrowband Physical Downlink Control Channel, NPDCCH, and Narrowband Physical Downlink Shared Channel, NPDSCH, transmission associated with one of NPDSCH random access response message and NPDSCH Radio Resource Control, RRC, connection resume message
  • FIG. 1 is a diagram of NRS mapping of resource elements (REs) on a subframe (1 ms) that is transmitted on a single Physical Resource Block (180 kHz);
  • FIG. 2 is a diagram of SINR-Narrowband Reference Signal Received Quality (RSRQ) relation in a case of no load or a case of a fully loaded measurement subframe;
  • RSRQ SINR-Narrowband Reference Signal Received Quality
  • FIG. 3 is a schematic diagram of an exemplary network architecture illustrating a communication system connected via an intermediate network to a host computer according to the principles in the present disclosure
  • FIG. 4 is a block diagram of a host computer communicating via a network node with a wireless device over an at least partially wireless connection according to some embodiments of the present disclosure
  • FIG. 5 is a block diagram of an alternative embodiment of a host computer according to some embodiments of the present disclosure.
  • FIG. 6 is a block diagram of an alternative embodiment of a network node according to some embodiments of the present disclosure.
  • FIG. 7 is a block diagram of an alternative embodiment of a wireless device according to some embodiments of the present disclosure.
  • FIG. 8 is a flowchart illustrating exemplary methods implemented in a communication system including a host computer, a network node and a wireless device for executing a client application at a wireless device according to some embodiments of the present disclosure
  • FIG. 9 is a flowchart illustrating exemplary methods implemented in a communication system including a host computer, a network node and a wireless device for receiving user data at a wireless device according to some embodiments of the present disclosure
  • FIG. 10 is a flowchart illustrating exemplary methods implemented in a communication system including a host computer, a network node and a wireless device for receiving user data from the wireless device at a host computer according to some embodiments of the present disclosure
  • FIG. 11 is a flowchart illustrating exemplary methods implemented in a communication system including a host computer, a network node and a wireless device for receiving user data at a host computer according to some embodiments of the present disclosure
  • FIG. 12 is a flowchart of an exemplary process in a network node for link adaptation based on reported non-anchor measurements according to some
  • FIG. 13 is a flowchart of another exemplary process in a network node according to some embodiments of the present disclosure.
  • FIG. 14 is a flowchart of an exemplary process in a wireless device for performing measurements and/or measurement reporting according to some embodiments of the present disclosure
  • FIG. 15 is a flowchart of another exemplary process in a wireless device according to some embodiments of the present disclosure.
  • FIG. 16 is a diagram of non-anchor to anchor NRS power offset
  • FIG. 17 is a signaling diagram of signaling associated with non-anchor measurement reporting using the NB-IoT connection setup message exchange for the case of a RRC Resume/Suspend procedure.
  • the radio quality on anchor carriers and on non-anchor carriers may be decoupled from each other.
  • the anchor carrier in a cell may be configured on a frequency experiencing limited interference
  • a non-anchor carrier may be configured on a frequency experiencing high interference levels, or vice versa.
  • the interference levels may be considerably higher on the anchor carrier due to the random access and paging load from wireless devices implementing 3 GPP Release 13 described above, and in the downlink, a difference in power boosting between the anchor carrier and non-anchors may also lead to differences in radio quality.
  • early reporting of the DL signal quality measured on the anchor carrier may be useful as this may help the base station optimize the link adaptation during the subsequent data transfer.
  • the anchor carrier signal quality measurement may not give a correct picture of the actual signal quality experienced on the non-anchor carrier. This may be especially true for the cases described above. So, if a network node uses anchor carrier measurements for link adaptation on non-anchor carriers, this may lead to poor performance for the wireless devices accessing the system on a non-anchor carrier.
  • the disclosure helps solves at least one of the problems with existing systems, at least in part, by providing for improved link adaptation in NB-IoT on non-anchor carriers.
  • the link adaption in existing systems may be based on inaccurate measurement reports that may lead to poor performance of the system and wireless device.
  • the disclosure helps solves at least one of the problems with existing systems, at least in part, by helping reduce signaling overhead and resource utilization in the network since the wireless devices may report the measurements only when certain criteria are met.
  • relational terms such as“first” and“second,”“top” and “bottom,” and the like, may be used solely to distinguish one entity or element from another entity or element without necessarily requiring or implying any physical or logical relationship or order between such entities or elements.
  • the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the concepts described herein.
  • the singular forms“a”,“an” and“the” are intended to include the plural forms as well, unless the context clearly indicates otherwise.
  • the joining term,“in communication with” and the like may be used to indicate electrical or data communication, which may be accomplished by physical contact, induction, electromagnetic radiation, radio signaling, infrared signaling or optical signaling, for example.
  • electrical or data communication which may be accomplished by physical contact, induction, electromagnetic radiation, radio signaling, infrared signaling or optical signaling, for example.
  • the term“coupled,”“connected,” and the like may be used herein to indicate a connection, although not necessarily directly, and may include wired and/or wireless connections.
  • network node can be any kind of network node comprised in a radio network which may further comprise any of base station (BS), radio base station, base transceiver station (BTS), base station controller (BSC), radio network controller (RNC), g Node B (gNB), evolved Node B (eNB or eNodeB), Node B, multi-standard radio (MSR) radio node such as MSR BS, multi-cell/multicast coordination entity (MCE), relay node, donor node controlling relay, radio access point (AP), transmission points, transmission nodes, Remote Radio Unit (RRU) Remote Radio Head (RRH), a core network node (e.g., mobile management entity (MME), self-organizing network (SON) node, a coordinating node, positioning node, MDT node, etc.), an external node (e.g., 3rd party node, a node external to the current network), nodes in distributed antenna system (DAS), a spectrum access system (SAS) no
  • BS base station
  • wireless device or a user equipment (UE) are used interchangeably.
  • the WD herein can be any type of wireless device capable of communicating with a network node or another WD over radio signals, such as wireless device (WD).
  • the WD may also be a radio communication device, target device, device to device (D2D) WD, machine type WD or WD capable of machine to machine communication (M2M), low-cost and/or low-complexity WD, a sensor equipped with WD, Tablet, mobile terminals, smart phone, laptop embedded equipped (LEE), laptop mounted equipment (LME), LTSB dongles, Customer Premises Equipment (CPE), an Internet of Things (IoT) device, or a Narrowband IoT (NB-IOT) device etc.
  • D2D device to device
  • M2M machine to machine communication
  • M2M machine to machine communication
  • Tablet mobile terminals
  • smart phone laptop embedded equipped (LEE), laptop mounted equipment (LME), LTSB dongles
  • CPE Customer Premises Equipment
  • IoT Internet of Things
  • NB-IOT Narrowband IoT
  • the generic term“radio network node” is used. It can be any kind of a radio network node which may comprise any of base station, radio base station, base transceiver station, base station controller, network controller, RNC, evolved Node B (eNB), Node B, gNB, Multi-cell/multicast Coordination Entity (MCE), relay node, access point, radio access point, Remote Radio LTnit (RRLT) Remote Radio Head (RRH).
  • a radio network node may comprise any of base station, radio base station, base transceiver station, base station controller, network controller, RNC, evolved Node B (eNB), Node B, gNB, Multi-cell/multicast Coordination Entity (MCE), relay node, access point, radio access point, Remote Radio LTnit (RRLT) Remote Radio Head (RRH).
  • WCDMA Wide Band Code Division Multiple Access
  • WiMax Worldwide Interoperability for Microwave Access
  • LIMB LTltra Mobile Broadband
  • GSM Global System for Mobile Communications
  • functions described herein as being performed by a wireless device or a network node may be distributed over a plurality of wireless devices and/or network nodes.
  • the functions of the network node and wireless device described herein are not limited to performance by a single physical device and, in fact, can be distributed among several physical devices.
  • signaling may generally comprise one or more symbols and/or signals and/or messages.
  • a signal may comprise or represent one or more bits.
  • An indication may represent signaling, and/or be implemented as a signal, or as a plurality of signals.
  • One or more signals may be included in and/or represented by a message.
  • Signaling, in particular control signaling may comprise a plurality of signals and/or messages, which may be transmitted on different carriers and/or be associated to different signaling processes, e.g. representing and/or pertaining to one or more such processes and/or
  • An indication may comprise signaling, and/or a plurality of signals and/or messages and/or may be comprised therein, which may be transmitted on different carriers and/or be associated to different acknowledgement signaling processes, e.g. representing and/or pertaining to one or more such processes.
  • Signaling associated to a channel may be transmitted such that it represents signaling and/or information for that channel, and/or that the signaling is interpreted by the transmitter and/or receiver to belong to that channel.
  • Such signaling may generally comply with transmission parameters and/or format/s for the channel.
  • Implicit indication may for example be based on position and/or resource used for transmission.
  • Explicit indication may for example be based on a parametrization with one or more parameters, and/or one or more index or indices, and/or one or more bit patterns representing the information. It may in particular be considered that the RRC signaling may indicate what subframes or signals to use for one or more of the measurements described herein and under what conditions and/or operational modes.
  • Embodiments provide performing measurements on non-anchor carrier(s) while a wireless device is in idle mode, and reporting, in some embodiments, the measurements such that the network node may use the reports to perform accurate link adaptation or another function on the non-anchor carriers.
  • FIG. 3 a schematic diagram of a communication system, according to an embodiment, including a communication system 10, such as a 3GPP-type cellular network that may support standards such as LTE and/or NR (5G), which comprises an access network 12, such as a radio access network, and a core network 14.
  • the access network 12 comprises a plurality of network nodes l6a, l6b, l6c (referred to collectively as network nodes 16), such as NBs, eNBs, gNBs or other types of wireless access points, each defining a corresponding coverage area l8a, 18b, l8c (referred to collectively as coverage areas 18).
  • Each network node l6a, l6b, l6c is connectable to the core network 14 over a wired or wireless connection 20.
  • a first wireless device (WD) 22a located in coverage area l8a is configured to wirelessly connect to, or be paged by, the corresponding network node l6c.
  • a second WD 22b in coverage area 18b is wirelessly connectable to the corresponding network node l6a. While a plurality of WDs 22a, 22b (collectively referred to as wireless devices 22) are illustrated in this example, the disclosed embodiments are equally applicable to a situation where a sole WD is in the coverage area or where a sole WD is connecting to the corresponding network node 16. Note that although only two WDs 22 and three network nodes 16 are shown for convenience, the communication system may include many more WDs 22 and network nodes 16.
  • a WD 22 can be in simultaneous communication and/or configured to separately communicate with more than one network node 16 and more than one type of network node 16.
  • a WD 22 can have dual connectivity with a network node 16 that supports LTE and the same or a different network node 16 that supports NR.
  • WD 22 can be in communication with an eNodeB (eNB) - for Long Term Evolution (LTE)/ Evolved Terrestrial Radio Access Network (E-ETTRAN) and a gNB for New Radio (NR)/Next Generation (NG)- Radio Access Network (RAN).
  • eNB eNodeB
  • LTE Long Term Evolution
  • E-ETTRAN Evolved Terrestrial Radio Access Network
  • gNB New Radio (NR)/Next Generation (NG)- Radio Access Network
  • the communication system 10 may itself be connected to a host computer 24, which may be embodied in the hardware and/or software of a standalone server, a cloud-implemented server, a distributed server or as processing resources in a server farm.
  • the host computer 24 may be under the ownership or control of a service provider, or may be operated by the service provider or on behalf of the service provider.
  • the connections 26, 28 between the communication system 10 and the host computer 24 may extend directly from the core network 14 to the host computer 24 or may extend via an optional intermediate network 30.
  • the intermediate network 30 may be one of, or a combination of more than one of, a public, private or hosted network.
  • the intermediate network 30, if any, may be a backbone network or the Internet.
  • the intermediate network 30 may comprise two or more sub-networks (not shown).
  • the communication system of FIG. 3 as a whole enables connectivity between one of the connected WDs 22a, 22b and the host computer 24.
  • the connectivity may be described as an over-the-top (OTT) connection.
  • the host computer 24 and the connected WDs 22a, 22b are configured to communicate data and/or signaling via the OTT connection, using the access network 12, the core network 14, any intermediate network 30 and possible further infrastructure (not shown) as intermediaries.
  • the OTT connection may be transparent in the sense that at least some of the participating communication devices through which the OTT connection passes are unaware of routing of uplink and downlink communications.
  • a network node 16 may not or need not be informed about the past routing of an incoming downlink communication with data originating from a host computer 24 to be forwarded (e.g., handed over) to a connected WD 22a. Similarly, the network node 16 need not be aware of the future routing of an outgoing uplink communication originating from the WD 22a towards the host computer 24.
  • a network node 16 is configured to include a receiving unit 32 which is configured to receive at least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device during Radio Resource Control, RRC, Idle mode, as described herein, and link adaptation unit 76 that is configured to perform link adaption based on the received at least one measurement report, as described herein.
  • a receiving unit 32 which is configured to receive at least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device during Radio Resource Control, RRC, Idle mode, as described herein
  • link adaptation unit 76 that is configured to perform link adaption based on the received at least one measurement report, as described herein.
  • a wireless device 22 is configured to include a measurement unit 34 which is configured to perform at least one measurement of the at least one non-anchor carrier during Radio Resource Control, RRC, Idle mode, as described herein, and reporting unit 94 which is configured to, if a reporting criteria are met, report the at least one measurement of the at least one non-anchor-carrier, as described herein.
  • RRC Radio Resource Control
  • Idle mode Radio Resource Control
  • reporting unit 94 which is configured to, if a reporting criteria are met, report the at least one measurement of the at least one non-anchor-carrier, as described herein.
  • the term“a reporting criteria” refers to one or more criterion.
  • a host computer 24 comprises hardware (FtW) 38 including a communication interface 40 configured to set up and maintain a wired or wireless connection with an interface of a different communication device of the communication system 10.
  • the host computer 24 further comprises processing circuitry 42, which may have storage and/or processing capabilities.
  • the processing circuitry 42 may include a processor 44 and memory 46.
  • the processing circuitry 42 may comprise integrated circuitry for processing and/or control, e.g., one or more processors and/or processor cores and/or FPGAs (Field Programmable Gate Array) and/or ASICs (Application Specific Integrated Circuitry) adapted to execute instructions.
  • processors and/or processor cores and/or FPGAs Field Programmable Gate Array
  • ASICs Application Specific Integrated Circuitry
  • the processor 44 may be configured to access (e.g., write to and/or read from) memory 46, which may comprise any kind of volatile and/or nonvolatile memory, e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read- Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • memory 46 may comprise any kind of volatile and/or nonvolatile memory, e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read- Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • Processing circuitry 42 may be configured to control any of the methods and/or processes described herein and/or to cause such methods, and/or processes to be performed, e.g., by host computer 24.
  • Processor 44 corresponds to one or more processors 44 for performing host computer 24 functions described herein.
  • the host computer 24 includes memory 46 that is configured to store data, programmatic software code and/or other information described herein.
  • the software 48 and/or the host application 50 may include instructions that, when executed by the processor 44 and/or processing circuitry 42, causes the processor 44 and/or processing circuitry 42 to perform the processes described herein with respect to host computer 24.
  • the instructions may be software associated with the host computer 24.
  • the software 48 may be executable by the processing circuitry 42.
  • the software 48 includes a host application 50.
  • the host application 50 may be operable to provide a service to a remote user, such as a WD 22 connecting via an OTT connection 52 terminating at the WD 22 and the host computer 24.
  • the host application 50 may provide user data which is transmitted using the OTT connection 52.
  • The“user data” may be data and information described herein as implementing the described functionality.
  • the host computer 24 may be configured for providing control and functionality to a service provider and may be operated by the service provider or on behalf of the service provider.
  • the processing circuitry 42 of the host computer 24 may enable the host computer 24 to observe, monitor, control, transmit to and/or receive from the network node 16 and or the wireless device 22.
  • the processing circuitry 42 of the host computer 24 may include a communication unit 54 configured to enable the service provider to communicate with the network node 16 and or the wireless device 22.
  • the communication system 10 further includes a network node 16 provided in a communication system 10 and comprising hardware 58 enabling it to communicate with the host computer 24 and with the WD 22.
  • the hardware 58 may include a communication interface 60 for setting up and maintaining a wired or wireless connection with an interface of a different communication device of the
  • the radio interface 62 may be formed as or may include, for example, one or more radio frequency (RF) transmitters, one or more RF receivers, and/or one or more RF transceivers.
  • the communication interface 60 may be configured to facilitate a connection 66 to the host computer 24.
  • the connection 66 may be direct or it may pass through a core network 14 of the communication system 10 and/or through one or more intermediate networks 30 outside the communication system 10.
  • the hardware 58 of the network node 16 further includes processing circuitry 68.
  • the processing circuitry 68 may include a processor 70 and a memory 72.
  • the processing circuitry 68 may comprise integrated circuitry for processing and/or control, e.g., one or more processors and/or processor cores and/or FPGAs (Field Programmable Gate Array) and/or ASICs (Application Specific Integrated Circuitry) adapted to execute instructions.
  • FPGAs Field Programmable Gate Array
  • ASICs Application Specific Integrated Circuitry
  • the processor 70 may be configured to access (e.g., write to and/or read from) the memory 72, which may comprise any kind of volatile and/or nonvolatile memory, e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read-Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • the network node 16 further has software 74 stored internally in, for example, memory 72, or stored in external memory (e.g., database, storage array, network storage device, etc.) accessible by the network node 16 via an external connection.
  • the software 74 may be executable by the processing circuitry 68.
  • the processing circuitry 68 may be configured to control any of the methods and/or processes described herein and/or to cause such methods, and/or processes to be performed, e.g., by network node 16.
  • Processor 70 corresponds to one or more processors 70 for performing network node 16 functions described herein.
  • the memory 72 is configured to store data, programmatic software code and/or other information described herein.
  • the software 74 may include instructions that, when executed by the processor 70 and/or processing circuitry 68, causes the processor 70 and/or processing circuitry 68 to perform the processes described herein with respect to network node 16.
  • processing circuitry 68 of the network node 16 may include receiving unit 32 configured to receive at least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device during Radio Resource Control, RRC, Idle mode.
  • the processing circuitry 68 may also include link adaptation unit 76 configured to perform link adaption based on the received at least one measurement report.
  • the communication system 10 further includes the WD 22 already referred to.
  • the WD 22 may have hardware 80 that may include a radio interface 82 configured to set up and maintain a wireless connection 64 with a network node 16 serving a coverage area 18 in which the WD 22 is currently located.
  • the radio interface 82 may be formed as or may include, for example, one or more RF transmitters, one or more RF receivers, and/or one or more RF transceivers.
  • the hardware 80 of the WD 22 further includes processing circuitry 84.
  • the processing circuitry 84 may include a processor 86 and memory 88.
  • the processing circuitry 84 may comprise integrated circuitry for processing and/or control, e.g., one or more processors and/or processor cores and/or FPGAs (Field Programmable Gate Array) and/or ASICs (Application Specific Integrated Circuitry) adapted to execute instructions.
  • the processor 86 may be configured to access (e.g., write to and/or read from) memory 88, which may comprise any kind of volatile and/or nonvolatile memory, e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read-Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • memory 88 may comprise any kind of volatile and/or nonvolatile memory, e.g., cache and/or buffer memory and/or RAM (Random Access Memory) and/or ROM (Read-Only Memory) and/or optical memory and/or EPROM (Erasable Programmable Read-Only Memory).
  • the WD 22 may further comprise software 90, which is stored in, for example, memory 88 at the WD 22, or stored in external memory (e.g., database, storage array, network storage device, etc.) accessible by the WD 22.
  • the software 90 may be executable by the processing circuitry 84.
  • the software 90 may include a client application 92.
  • the client application 92 may be operable to provide a service to a human or non-human user via the WD 22, with the support of the host computer 24.
  • an executing host application 50 may communicate with the executing client application 92 via the OTT connection 52 terminating at the WD 22 and the host computer 24.
  • the client application 92 may receive request data from the host application 50 and provide user data in response to the request data.
  • the OTT connection 52 may transfer both the request data and the user data.
  • the client application 92 may interact with the user to generate the user data that it provides.
  • the processing circuitry 84 may be configured to control any of the methods and/or processes described herein and/or to cause such methods, and/or processes to be performed, e.g., by WD 22.
  • the processor 86 corresponds to one or more processors 86 for performing WD 22 functions described herein.
  • the WD 22 includes memory 88 that is configured to store data, programmatic software code and/or other information described herein.
  • the software 90 and/or the client application 92 may include instructions that, when executed by the processor 86 and/or processing circuitry 84, causes the processor 86 and/or processing circuitry 84 to perform the processes described herein with respect to WD 22.
  • the processing circuitry 84 of the wireless device 22 may include a measurement unit 34 configured to perform at least one measurement of the at least one non-anchor carrier during Radio Resource Control, RRC, Idle mode.
  • the processing circuitry 84 may also include reporting unit 94 configured to, if a reporting criteria is met, report the at least one measurement of the at least one non-anchor- carrier.
  • the inner workings of the network node 16, WD 22, and host computer 24 may be as shown in FIG. 4 and independently, the surrounding network topology may be that of FIG. 3.
  • the OTT connection 52 has been drawn abstractly to illustrate the communication between the host computer 24 and the wireless device 22 via the network node 16, without explicit reference to any intermediary devices and the precise routing of messages via these devices.
  • Network infrastructure may determine the routing, which it may be configured to hide from the WD 22 or from the service provider operating the host computer 24, or both. While the OTT connection 52 is active, the network infrastructure may further take decisions by which it dynamically changes the routing (e.g., on the basis of load balancing consideration or
  • the wireless connection 64 between the WD 22 and the network node 16 is 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 the WD 22 using the OTT connection 52, in which the wireless connection 64 may form the last segment. More precisely, the teachings of some of these embodiments may improve the data rate, latency, and/or power consumption and thereby provide benefits such as reduced user waiting time, relaxed restriction on file size, better responsiveness, extended battery lifetime, etc.
  • a measurement procedure may be provided for the purpose of monitoring data rate, latency and other factors on which the one or more embodiments improve.
  • the measurement procedure and/or the network functionality for reconfiguring the OTT connection 52 may be implemented in the software 48 of the host computer 24 or in the software 90 of the WD 22, or both.
  • sensors (not shown) may be deployed in or in association with communication devices through which the OTT connection 52 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which software 48, 90 may compute or estimate the monitored quantities.
  • the reconfiguring of the OTT connection 52 may include message format, retransmission settings, preferred routing etc.; the reconfiguring need not affect the network node 16, and it may be unknown or imperceptible to the network node 16. Some such procedures and functionalities may be known and practiced in the art.
  • measurements may involve proprietary WD signaling facilitating the host computer’s 24 measurements of throughput, propagation times, latency and the like.
  • the measurements may be implemented in that the software 48, 90 causes messages to be transmitted, in particular empty or ‘dummy’ messages, using the OTT connection 52 while it monitors propagation times, errors etc.
  • the host computer 24 includes processing circuitry 42 configured to provide user data and a communication interface 40 that is configured to forward the user data to a cellular network for transmission to the WD 22.
  • the cellular network also includes the network node 16 with a radio interface 62.
  • the network node 16 is configured to, and/or the network node’s 16 processing circuitry 68 is configured to perform the functions and/or methods described herein for
  • the host computer 24 includes processing circuitry 42 and a communication interface 40 that is configured to a communication interface 40 configured to receive user data originating from a transmission from a WD 22 to a network node 16.
  • the WD 22 is configured to, and/or comprises a radio interface 82 and/or processing circuitry 84 configured to perform the functions and/or methods described herein for
  • FIGS. 3 and 4 show various“units” such as receiving unit 32, measurement unit 34, link adaptation unit 76 and reporting unit 94 as being within a respective processor, it is contemplated that these units may be implemented such that a portion of the unit is stored in a corresponding memory within the processing circuitry. In other words, the units may be implemented in hardware or in a combination of hardware and software within the processing circuitry.
  • FIG. 5 is a block diagram of an alternative host computer 24, which may be implemented at least in part by software modules containing software executable by a processor to perform the functions described herein.
  • the host computer 24 includes a communication interface module 41 configured to set up and maintain a wired or wireless connection with an interface of a different communication device of the communication system 10.
  • the memory module 47 is configured to store data, programmatic software code and/or other information described herein
  • communication module 55 is configured to enable the service provider to
  • FIG. 6 is a block diagram of an alternative network node 16, which may be implemented at least in part by software modules containing software executable by a processor to perform the functions described herein.
  • the network node 16 includes a radio interface module 63 configured for setting up and maintaining at least a wireless connection 64 with a WD 22 located in a coverage area 18 served by the network node 16.
  • the network node 16 also includes a communication interface module 61 configured for setting up and maintaining a wired or wireless connection with an interface of a different communication device of the communication system 10.
  • the communication interface module 61 may also be configured to facilitate a connection 66 to the host computer 24.
  • the memory module 73 that is configured to store data, programmatic software code and/or other information described herein.
  • the receiving module 33 is configured to receive at least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device during Radio Resource Control, RRC, Idle mode, as described herein.
  • the link adaptation module 77 is configured to perform link adaption based on the received at least one measurement report, as described herein.
  • FIG. 7 is a block diagram of an alternative wireless device 22, which may be implemented at least in part by software modules containing software executable by a processor to perform the functions described herein.
  • the WD 22 includes a radio interface module 83 configured to set up and maintain a wireless connection 64 with a network node 16 serving a coverage area 18 in which the WD 22 is currently located.
  • the memory module 89 is configured to store data, programmatic software code and/or other information described herein.
  • the measurement module 35 is configured to perform at least one measurement of the at least one non-anchor carrier during Radio Resource Control, RRC, Idle mode, as described herein.
  • the reporting module 95 is configured to, if a reporting criteria is met, report the at least one measurement of the at least one non-anchor-carrier, as described herein.
  • FIG. 8 is a flowchart illustrating an exemplary method implemented in a communication system, such as, for example, the communication system of FIGS. 3 and 4, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a WD 22, which may be those described with reference to FIG. 4.
  • the host computer 24 provides user data (block S100).
  • the host computer 24 provides the user data by executing a host application, such as, for example, the host application 50 (block S102).
  • a second step the host computer 24 initiates a transmission carrying the user data to the WD 22 (block S104).
  • the network node 16 transmits to the WD 22 the user data which was carried in the transmission that the host computer 24 initiated, in accordance with the teachings of the embodiments described throughout this disclosure (block S106).
  • the WD 22 executes a client application, such as, for example, the client application 92, associated with the host application 50 executed by the host computer 24 (block S108).
  • FIG. 9 is a flowchart illustrating an exemplary method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a WD 22, which may be those described with reference to FIGS. 1 and 2.
  • the host computer 24 provides user data (block Sl 10).
  • the host computer 24 provides the user data by executing a host application, such as, for example, the host application 50.
  • the host computer 24 initiates a transmission carrying the user data to the WD 22 (block Sl 12).
  • the transmission may pass via the network node 16, in accordance with the teachings of the embodiments described throughout this disclosure.
  • the WD 22 receives the user data carried in the transmission (block Sl 14).
  • FIG. 10 is a flowchart illustrating an exemplary method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a WD 22, which may be those described with reference to FIGS. 3 and 4.
  • the WD 22 receives input data provided by the host computer 24 (block Sl 16).
  • the WD 22 executes the client application 114, which provides the user data in reaction to the received input data provided by the host computer 24 (block Sl 18).
  • the WD 22 provides user data (block S120).
  • the WD provides the user data by executing a client application, such as, for example, client application 114 (block S122).
  • client application 114 may further consider user input received from the user.
  • the WD 22 may initiate, in an optional third substep, transmission of the user data to the host computer 24 (block S124).
  • the host computer 24 receives the user data transmitted from the WD 22, in accordance with the teachings of the embodiments described throughout this disclosure (block S126).
  • FIG. 11 is a flowchart illustrating an exemplary method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a WD 22, which may be those described with reference to FIGS. 3 and 4.
  • the network node 16 receives user data from the WD 22 (block S128).
  • the network node 16 initiates transmission of the received user data to the host computer 24 (block S130).
  • the host computer 24 receives the user data carried in the transmission initiated by the network node 16 (block S132).
  • FIG. 11 is a flowchart illustrating an exemplary method implemented in a communication system, such as, for example, the communication system of FIG. 3, in accordance with one embodiment.
  • the communication system may include a host computer 24, a network node 16 and a WD 22, which may be those described with reference to FIGS. 3 and 4.
  • the network node 16 receives user data from the WD 22 (block
  • Processing circuitry 68 is configured to receive at least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device during Radio Resource Control, RRC, Idle mode, as described herein (block S134). Processing circuitry 68 is further configured to perform link adaption based on the received at least one measurement report, as described herein (block S136).
  • the at least one non-anchor carrier is associated with a random access procedure and/or paging. In some embodiments, the at least one measurement report is received during connection setup of the wireless device or during a connected session of the wireless device 22.
  • FIG. 13 is a flowchart of another exemplary process in a network node 16 for using measurement reports on non-anchor carrier(s).
  • One or more Blocks and/or functions performed by network node 16 may be performed by one or more elements of network node 16 such as by determination unit 32 in processing circuitry 68, processor 70, communication interface 60, radio interface 62, etc.
  • network node 16 such as via one or more of processing circuitry 68, processor 70, radio interface 62 and communication interface 60 is configured to determine information for the wireless device 22 to perform (block S 138) at least one measurement of at least one non-anchor carrier and report the at least one
  • network node 16 such as via one or more of processing circuitry 68, processor 70, radio interface 62 and communication interface 60 is configured to signal (block S140) the information to the wireless device 22 for wireless device 22 operation based at least in part on the information, as described herein.
  • the information corresponds to a dynamic indication for triggering the performing of the at least one measurement of the at least one non-anchor carrier.
  • the information includes at least one measurement criteria, the performing of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one measurement criteria being met.
  • the at least one measurement criteria includes a plurality of combinations of potential operational modes of the wireless device 22 where each combination corresponding to an operational mode for an anchor carrier and an operational mode for the non-anchor carrier.
  • the information includes at least one reporting criteria, the reporting of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one reporting criteria being met.
  • the at least one reporting criteria is based at least in part on at least one operational mode of the wireless device 22.
  • the at least one reporting criteria is based at least in part on a difference between the at least one measurement of the at least one non-anchor carrier and a measurement of an anchor carrier. According to one or more embodiments, the at least one reporting criteria is based at least in part on a coverage level of the non-anchor carrier and a coverage level of an anchor carrier where the coverage level is based at least in part on a measured signal power level.
  • the at least one measurement of the at least one non-anchor carrier includes at least one of a reference signal-signal to noise and interference ratio measurement, signal to noise ratio measurement, signal received quality measurement and signal received power measurement.
  • the measurement of the at least one non-anchor carrier occurs during Radio Resource Control, RRC, Idle mode.
  • the measurement of the at least one non-anchor carrier includes measuring a reference signal during a non-anchor measurement window.
  • the non-anchor measurement window corresponds to at least a portion of a random access respond, RAR, window.
  • the non-anchor measurement window is defined at least in part by one of a periodically reoccurring radio resource, and one of downlink shared channel and downlink control channel transmissions associated a message in the Radio Resource Control, RRC, procedure.
  • the non-anchor measurement window is defined around Narrowband Physical Downlink Control Channel, NPDCCH, and Narrowband Physical Downlink Shared Channel, NPDSCH, transmission associated with one of NPDSCH random access response message and NPDSCH Radio Resource Control, RRC, connection resume message.
  • FIG. 14 is a flowchart of an exemplary process in a wireless device 22 according to some embodiments of the present disclosure for performing
  • Processing circuitry 84 is configured to perform at least one measurement of the at least one non-anchor carrier during Radio Resource Control, RRC, Idle mode, as described herein (block S142). Processing circuitry 84 is configured to, if a reporting criteria is met, report the at least one measurement of the at least one non-anchor-carrier, as described herein (block S144).
  • RRC Radio Resource Control
  • Idle mode Radio Resource Control
  • the measurement criteria includes a plurality of combinations of a plurality of operational modes.
  • the reporting criteria are based at least in part on a difference between the at least one measurement of the at least one non-anchor-carrier and a measurement of the anchor carrier and/or a coverage level of the non-anchor carrier and a coverage level of the anchor carrier.
  • FIG. 15 is a flowchart of another exemplary process in a wireless device 22 according to some embodiments of the present disclosure for performing
  • wireless device 22 such as by triggering unit 34 in processing circuitry 84, processor 86, radio interface 82, etc.
  • wireless device 22 such as via one or more of processing circuitry 84, processor 86 and radio interface 82 is configured to receive (block S146) information for performing at least one measurement of the at least one non-anchor carrier and reporting of the at least one measurement of the at least one non-anchor carrier, as described herein.
  • wireless device 22 such as via one or more of processing circuitry 84, processor 86 and radio interface 82 is configured to perform (block S148) at least one measurement of the at least one non anchor carrier based at least in part on the received information, as described herein.
  • wireless device 22 such as via one or more of processing circuitry 84, processor 86 and radio interface 82 is configured to report (block S150) the at least one measurement of the at least one non-anchor carrier based at least in part on the received information, as described herein.
  • the received information corresponds to a dynamic indication that triggers the performing of the at least one measurement of the at least one non-anchor carrier.
  • the received information includes at least one measurement criteria where the performing of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one measurement criteria being met.
  • the measurement criteria include a plurality of
  • the received information includes at least one reporting criteria where the reporting of the at least one measurement of the at least one non-anchor carrier is triggered based at least in part on the at least one reporting criteria being met.
  • the at least one reporting criteria is based at least in part on at least one operational mode of the wireless device 22.
  • the at least one reporting criteria is based at least in part on a difference between the at least one measurement of the at least one non-anchor carrier and a measurement of the anchor carrier.
  • the at least one reporting criteria is based at least in part on a coverage level of the non-anchor carrier and a coverage level of the anchor carrier where the coverage level being based at least in part on a measured signal power level.
  • the at least one measurement of the at least one non-anchor carrier includes at least one of a reference signal-signal to noise and interference ratio measurement, signal to noise ratio measurement, signal received quality measurement and signal received power measurement.
  • the measurement of the at least one non-anchor carrier occurs during Radio Resource Control, RRC, Idle mode.
  • the measurement of the at least one non-anchor carrier includes measuring a reference signal during a non-anchor measurement window.
  • the non-anchor measurement window corresponds to at least a portion of a random access respond, RAR, window.
  • the non-anchor measurement window is defined at least in part by one of a periodically reoccurring radio resource, and one of downlink shared channel and downlink control channel transmissions associated a message in the Radio Resource Control, RRC, procedure.
  • the non-anchor measurement window is defined around Narrowband Physical Downlink Control Channel, NPDCCH, and Narrowband Physical Downlink Shared Channel, NPDSCH, transmission associated with one of NPDSCH random access response message and NPDSCH Radio Resource Control, RRC, connection resume message.
  • Embodiments provide for measuring and/or reporting non-anchor carrier measurements such as signal strength and/or signal quality. Details regarding these embodiments are described below.
  • WD 22 such as a NB-IoT WD, configured for paging and/or random access on a non-anchor carrier performs idle mode measurements on the downlink non-anchor carrier associated with the random access procedure and/or the non-anchor carrier in which the WD 22 monitors paging. That is, in the
  • NPRACH Narrowband Physical Random Access Channel
  • both an uplink and a downlink non-anchor carrier are configured for the random access procedure where the latter may be of interest for the idle mode measurement reporting.
  • the non-anchor carriers for random access and paging may be configured separately and the WD 22 may therefore provide separate idle mode measurement reports for the random access and paging non-anchor carriers. Since the reports may always be transmitted on the same carrier (the uplink random access carrier if included in message Msg3 (where“Msg” generally refers to a message or signaling as illustrated in FIG. 17) and on the assigned uplink carrier according to 3GPP Release 13 multi-Physical Resource Block (PRB) operation if in Msg5
  • PRB multi-Physical Resource Block
  • new signaling may be introduced to indicate the carriers of the transmitted reports.
  • the measured quantity may correspond to be signal quality and/or signal strength metric such as RS-SINR, NRSRQ or NRSRP.
  • a WD 22 such as an NB-IoT WD, configured for paging and/or random access on a non-anchor carrier reports the non-anchor measurement during the connection setup phase of RRC.
  • the measurement report may be appended on to the NB-IoT MAC or RRC protocol messages sent during the connection setup, or appended at a later time during the connected session such as when WD 22 is in a RRC CONNECTED state.
  • a MAC control element of RRC message after Msg3 may be used due to the size restriction.
  • the WD 22 e.g. NB- IOT WD 22
  • the WD 22 may perform the idle mode NRSRP measurements on a reference signal or a physical channel transmitted on the configured non-anchor carrier.
  • the reference signal may be defined as, but is not limited to, a NB-IoT NRS or a LTE Cell Specific Reference Signal (CRS).
  • the physical channel may be defined as, but not limited to, a NPDCCH.
  • NRSRP is a non limiting example of a metric corresponding to the signal power, that may be used.
  • NRSRP measured on the anchor carrier may be used in combination with the non-anchor to anchor carrier NRS power offset, that may be signaled in the NB system information, in order to estimate the NRSRP of the non anchor carrier.
  • FIG. 16 is a diagram of an example of a non-anchor to anchor NRS power offset.
  • WD 22 may perform NRS SI while in idle mode, or interference and noise measurements on a set of non-anchor carrier subframes or OFDM symbols configured for measurements.
  • a WD 22 may combine the non-anchor NRSRP and NRSSI, or interference and noise measurements to produce a non-anchor NRSRQ or RS-SINR measurement.
  • a WD 22 may perform the idle mode measurements on the reference signal or channel transmitted in a non-anchor measurement windows, e.g., the random-access response window.
  • the measurement window(s) can be the entire or partly of the window controlled by higher layers where the WD 22 may attempt to decode the NPDCCH with DCI scrambled by RA-RNTI as described in 3GPP TS 36.321, subclause 5.1.4).
  • the measurement window is the entire random access response window where the WD 22 monitors the RAR where this window can be long as there can be several possible locations where the WD 22 can receive the RAR.
  • the WD 22 can perform measurement and generate the reporting while monitoring the configured window for the NPDCCH with DCI scrambled by RA-RNTI and/or the corresponding NPDSCH scheduled by a DCI scrambled by RA-RNTI.
  • the measurement window is part of the window controller by higher layers, the WD may obtain reliable measurements.
  • a non-anchor measurement window may be defined by a periodically reoccurring radio resource that may be defined by a frequency range and a time duration.
  • a non-anchor measurement window may be defined around the NPDCCH and NPDSCH transmissions associated with Msg2 and/or Msg4, i.e., is based at least in part on a NPDCCH and/or NPDSCH
  • the non anchor measurement window is defined around the resource location where the WD 22 detects a DCI scrambled with RA-RNTI, and the DCI schedules a NPDSCH carrying a RAR message.
  • the window starts x number of subframes before the starting point of the NPDCCH or an NPDCCH search space and ends y number of subframes after the NPDSCH transmissions scheduled by the NPDCCH.
  • the WD 22 can perform measurement upon detecting an NPDCCH transmission. This allows the WD 22 to reuse the current implementation when WD 22 monitors the random-access response. It also minimizes the number of NRS subframes that may need to be transmitted.
  • the WD 22 may measure the carrier indicated in msg4 and report the measurement back in subsequent messages, e.g., msg5.
  • FIG. 17 illustrates the signaling associated with non-anchor measurement reporting using the NB-IoT connection setup message exchange for the case of a RRC Resume/Suspend procedure.
  • NPSS initial sync
  • NSSS fine sync
  • NPBCH MIB
  • Reference signal(s), measurement subframes(s) and/or symbol(s) are transmitted (block S158) to the wireless device 22.
  • NPRACH Msgl
  • NPDSCH Random Access Response (Msg2) is transmitted (block S162) to the wireless device 22.
  • NPUSCH Fl RRC Connection Resume Request (Msg3) is transmitted (block S164) to the network node 16.
  • NPDSCH RRC Connection Resume (Msg4) is transmitted (block S166) to the wireless device 22.
  • NPUSCH F2 HARQ Ack is transmitted (block S168) to the network node 16.
  • NPUSCH Fl RRC Connection Resume Complete (Msg5) + RLC Ack Msg4 + UL Report is transmitted (block S170) to the wireless device 22.
  • NPDSCH RLC Ack Msg5 is transmitted (block S172) to the wireless device 22.
  • NPUSCH F2 HARQ Ack is transmitted (block S174) to the network node 16.
  • NPDSCH RRC Connection Release is transmitted (block S176) to the wireless device 22.
  • NPUSCH F2 HARQ Ack is transmitted (block S179) to the network node 16.
  • NPUSCH Fl RLC Ack RRC Connection Release is transmitted (block S180) to the network node 16.
  • Narrowband Physical Broadcast Channel containing the master information block
  • Idle mode measurements i.e., measurements performed by the WD 22 during idle mode
  • the measurement report may be appended to Msg3 or Msg5 or even a subsequent message.
  • the WD 22 may always perform random access on the anchor carrier but may, via a dedicated RRC in Msg4 signaling, be assigned to a non-anchor carrier, or rather one uplink and/or one downlink, for the duration of the RRC connection.
  • the WD 22 may perform the random access on non-anchor carrier(s), and if there is no RRC assignment of 3GPP Release 13, the WD 22 may remain on the random access carriers, i.e., the WD 22 may remain on the uplink (UL) carrier where Msgl/Msg3 was transmitted and on the DL carrier where Msg2/Msg4 was received).
  • the WD 22 may perform the random access on non-anchor carrier(s), and if there is no RRC assignment of 3GPP Release 13, the WD 22 may remain on the random access carriers, i.e., the WD 22 may remain on the uplink (UL) carrier where Msgl/Msg3 was transmitted and on the DL carrier where Msg2/Msg4 was received).
  • UL uplink
  • the idle mode reporting may be focused on an early transmission (e.g., Msg3 or Msg5 in FIG. 17) such that the network node l6can use the idle mode reports for link adaptation, but there are also other uses for these measurement reports.
  • WDs 22 can be assigned to non-anchor carriers in Msg4 via dedicated RRC signaling as described above, or re- directed upon RRC connection release, and for that reason idle mode measurement reports may also be included for other carriers than the carriers the WD 22 is currently using. This may enable load distribution that may improve system performance overall, and may also enable frequency selection for the WD 22 such that the WD 22 can be assigned to a carrier where the WD 22 may have optimal performance.
  • an anchor carrier in NB-IoT, may refer to a carrier where the WD 22 assumes that Narrowband Primary Synchronization Sequence (NPSS)/ Narrowband Secondary Synchronization
  • a non-anchor carrier in NB-IoT, may refer to a carrier where the WD 22 does not assume that NPSS/NSSS/NPBCH/SIB-NB are transmitted, and/or may be used for all unicast transmissions.
  • This section describes different criteria that may be used by the WD 22 to trigger the measurements and reporting on a second carrier.
  • three criteria are described below.
  • the WD 22 may consider the operational modes used in the NB-IoT operation if deciding whether to trigger the measurements on a non anchor carrier.
  • the WD 22 may obtain at least the following sets of information in deciding:
  • the WD 22 may receive or obtain the information about the operational modes by, e.g., reading the system information (SI) from the anchor-carrier, in the configuration message received for setting up the non-anchor carrier, historical data, etc.
  • SI system information
  • Table 1 One example of the information obtained by the WD 22 is illustrated in Table
  • Table 1 Example of carriers and their configured operational modes Based on the obtained information on operational modes of the configured carriers (e.g., the anchor carrier and the non-anchor measured carrier), the WD 22 may apply one of actions in Table 2.
  • the configured carriers e.g., the anchor carrier and the non-anchor measured carrier
  • Table 2 Examples of measurement rule for wireless device configured with carriers of different operational modes.
  • measurement of the second carrier is triggered if the modes of the first carrier (e.g. anchor carrier) and the second carrier (e.g. non-anchor carrier) are different, or depending on the combination of operational mode type used in the two carriers. For example, for certain
  • the wireless device 22 may trigger the measurement on the non-anchor carrier. While for other combination(s) of the operational modes used in the two carriers, the wireless device 22 may avoid, prevent or not trigger the measurement on the non-anchor carrier. In this instance, WD 22 can base its reporting on measurements performed on the anchor carrier. According to examples shown in Table 2, the WD 22 applies one of the following actions based on the obtained information on operational modes of the configured and measured carrier(s):
  • the measurement of the second carrier may be triggered because the carriers can be configured on different location in the frequency domain, and therefore the measured value on the second carrier can be significantly different from the first carrier. In these cases, it may be beneficial to report the measured value of the second carrier, e.g., on the first carrier.
  • the interference experienced by the two carriers may be different due to the different modes of operation, therefore measurement of the second carrier may be triggered.
  • the carriers may not be placed far apart in the frequency domain, and therefore the measured value for the carriers may not differ significantly. In these cases, it might be sufficient to the use measurement performed on the first carrier (i.e., the serving carrier, or the anchor carrier) such that measurement on the second carrier, i.e., non-anchor carrier, is not triggered, and instead available measurements from the first carrier are reused. This may result in reduced load of the WD 22.
  • the first carrier i.e., the serving carrier, or the anchor carrier
  • the second carrier i.e., non-anchor carrier
  • the WD 22 may trigger the measurements since the first carrier and the second carrier can be configured near each other or far apart from each other.
  • the difference in the measurement may depend on the actual difference in the frequency location. Triggering of the measurement can be beneficial in order to avoid missing measurements if the difference can be significant.
  • the network node 16 can configure the WD 22 with information about a combination of operational modes used in the first and the second carriers for which the WD 22 may send a measurement report for measurements performed on the second carrier.
  • the network node 16 e.g., serving base station
  • the network node 16 can configure the WD 22 with information about a combination of operational modes used in the first and the second carriers for which the WD 22 may not be required to send a measurement report for measurement performed on the second carrier.
  • This configuration information can be transmitted to the WD 22 as part of measurement configuration message or in separate message.
  • the WD 22 may perform measurement (e.g., NRSRP, NRSRQ, Narrowband reference signal signal-to-interference-plus-noise ratio (NRS- SINR)) on the first carrier (e.g., anchor carrier) and a second carrier (e.g., the non anchor carrier) as described herein, and may trigger reporting of the second carrier (e.g., non-anchor carrier) measurements based the difference in these measurements, denoted as d.
  • d is expressed in log scale, e.g. in dB.
  • the embodiment may also be expressed in another scale such as in linear scale.
  • the wireless device 22 obtains the value of d as follows:
  • d can depend on the operational mode of the configured and/or measured carrier(s).
  • the WD 22 may use the obtained information on d to decide whether to trigger the reporting of the measurement performed on the second carrier. More specifically, the WD 22 may compare the difference of the measurements between the first and second carriers, and may trigger the reporting only when the difference is greater than or equal to d dB, or greater than d dB. This may be exemplified in one example using NRSRP measurement on first carrier (NRSRP Cl) and second carrier (NRSRP C2) by comparing them in linear domain:
  • the same rule may be applied for any type of measurement, e.g., NRSRQ, NRS-SINR, path loss etc.
  • the advantage of applying such a reporting rule is that the WD 22 avoids reporting if the difference is small or zero, where reporting this measurement to the receiving network node 16 may not provide any advantages.
  • this reporting rule is also known to the receiving network node, it may be implicitly understood that there small or no difference between the first and second carriers if the receiving network node 16 doesn’t receive any report for the second carrier.
  • the network node 16 can use this information to adapt the link adaptation procedure accordingly. This can also reduce unnecessary reporting and overhead in the network, and may lead to improved resource utilization.
  • the WD 22 performs measurement (e.g., NRSRP, NRSRQ, NRS-SINR) on a first carrier (e.g., anchor-carrier) and on a second carrier (e.g., non-anchor carrier) as described herein, and may trigger reporting based on the coverage difference.
  • measurement e.g., NRSRP, NRSRQ, NRS-SINR
  • first carrier e.g., anchor-carrier
  • a second carrier e.g., non-anchor carrier
  • the WD 22 obtains information about the coverage level, or coverage enhancement level (CE) of each of the first carrier and second carrier.
  • the WD 22 may perform radio measurements such as NRSRP, NRSRQ, SINR, or SNR of the first and second carriers and determine the coverage level in the respective carriers, e.g., if the Es/Iot level of the carrier is less than -6 dB, the coverage level can be considered as extended/enhanced coverage, or CE level 1, 2 etc. If the Es/Iot level is greater than or equal to -6 dB, the coverage level can be assumed to be normal coverage or CE level 0. For example, power boosting can be applied in only of the carriers which can lead to different experienced coverage level in the WD 22.
  • CE coverage enhancement level
  • the anchor carrier can be in normal coverage and non-anchor carrier in enhanced coverage or vice versa.
  • the WD 22 may determine the CE level with respect to the first or the second carrier, during a random access transmission procedure. For example the WD 22 selects the random access transmission resources based on the determined NPRACH coverage level (e.g., NPRACH coverage level 0, level 1 and level 2). The WD 22 may select or determine the NPRACH coverage level based on the signal measurement results performed by the WD 22 (e.g, NRSRP).
  • the WD 22 may use the determined coverage level of each of the first and second carriers to decide whether to trigger the reporting of the measurements performed on the second carrier. In one or more embodiments, the WD 22 may trigger the reporting of the second cell measurement only when there is a difference between the CE levels of the first carrier and of the second. For example, if the CE levels of the first and second carriers are the same, the WD 22 may not trigger the measurement report for the measurement performed on the second carrier. But if the CE levels of the first and second carriers are different (e.g., one in“normal” (or CE level 0) and the other carrier is in enhanced coverage), then the wireless device may trigger the measurement report for the measurement performed on the second cell.
  • the CE levels of the first and second carriers are different (e.g., one in“normal” (or CE level 0) and the other carrier is in enhanced coverage)
  • the wireless device may trigger the measurement report for the measurement performed on the second cell.
  • the wireless device may trigger the reporting of the second carrier measurement only if the coverage level of the second carrier is extended compared to first carrier, e.g., if the first carrier is in CE level 0 and the second carrier is in CE level other than 0 such as CE level 1.
  • the WD 22 may determine to avoid, prevent or not to trigger reporting of the measurement of the second carrier because the measurements are typically of better quality in normal coverage than in enhanced coverage. If no measurements are received, then the receiving network node 16 may interpret the coverage level and also the measurements quality as being better in the first cell operating on the first carrier.
  • the WD 22 can be configured by the network node 16 where the wireless device may report the measurements performed on the second carrier for a certain combination of CE levels with respect to the first and the second carriers.
  • the network node 16 can configure the WD 22 to report the measurements only if the CE levels with respect to the first carrier and the second carrier are different.
  • the network node 16 can configure the WD 22 to report the measurements only if the CE level of the wireless device with respect to the second carrier is extended compared to the CE level of the first carrier (e.g., when the WD 22 CE levels with respect to the first and second carrier are normal and extended, respectively).
  • the network node 16 can configure the WD 22 to report the measurements only if the CE level of the WD 22 with respect to the second carrier differs compared to the CE level of the first carrier by a predefined amount or CE level (e.g., if the WD 22 NPRACH CE levels with respect to first and second carriers are Level 0 and Level 2, respectively).
  • the disclosure advantageously enables improved link adaptation on NB-IoT non-anchor carriers by introducing signal quality measurement and reporting on the non-anchor carrier configured for system access.
  • Example Al A network node 16 configured to communicate with a wireless device 22 (WD 22), the network node 16 configured to, and/or comprising a radio interface 62 and/or comprising processing circuitry 68 configured to:
  • At least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device during Radio Resource Control, RRC, Idle mode;
  • Example A2 The network node 16 of Example Al, wherein the at least one non-anchor carrier is associated with a random access procedure and/or paging.
  • Example A3 The network node 16 of Example Al, wherein the at least one measurement report is received during connection setup of the wireless device 22 or during a connected session of the wireless device 22.
  • Example Bl A method implemented in a network node 16, the method comprising:
  • Example B2 The method of Example Bl, wherein the at least one non anchor carrier is associated with a random access procedure and/or paging.
  • Example B3 The method of Example B 1 , wherein the at least one measurement report is received during connection setup of the wireless device 22 or during a connected session of the wireless device 22.
  • a wireless device 22 configured to communicate with a network node 16, the WD 22 configured to use an anchor carrier and at least one non-anchor carrier, the WD 22 configured to, and/or comprising a radio interface 82 and/or processing circuitry 84 configured to:
  • Example C2 The WD 22 of Example Cl, wherein the measurement criteria includes a plurality of combinations of a plurality of operational modes.
  • Example C3 The WD 22 of Example Cl, wherein the reporting criteria is based at least in part on:
  • Example Dl A method implemented in a wireless device 22 (WD 22), the WD 22 configured to use an anchor carrier and at least one non-anchor carrier, the method comprising:
  • Example D2 The method of Example Dl, wherein the measurement criteria includes a plurality of combinations of a plurality of operational modes.
  • Example D3 The method of Example Dl, wherein the reporting criteria is based at least in part on: a difference between the at least one measurement of the at least one non- anchor-carrier and a measurement of the anchor carrier; and/or
  • Example El. A network node 16, comprising:
  • a receiver module 33 configured to receive at least one measurement report including information of at least one measurement of at least one non-anchor carrier that was performed by the wireless device 22 during Radio Resource Control, RRC, Idle mode;
  • a link adaptation module 77 configured to perform link adaption based on the received at least one measurement report.
  • Example E2. A wireless device 22, comprising:
  • a measurement module configured to perform at least one measurement of the at least one non-anchor carrier during Radio Resource Control, RRC, Idle mode; and a reporting module configured to, if a reporting criteria is met, report the at least one measurement of the at least one non-anchor-carrier
  • Example E3. A host computer, comprising:
  • a communication module 55 configured to communicate information with a network node and a wireless device, the information being associated with at least one measurement of at least one non-anchor carrier performed by the wireless device during Radio Resource Control, RRC, Idle mode.
  • the concepts described herein may be embodied as a method, data processing system, and/or computer program product. Accordingly, the concepts described herein may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects all generally referred to herein as a “circuit” or“module.” Furthermore, the disclosure may take the form of a computer program product on a tangible computer usable storage medium having computer program code embodied in the medium that can be executed by a computer. Any suitable tangible computer readable medium may be utilized including hard disks, CD-ROMs, electronic storage devices, optical storage devices, or magnetic storage devices.
  • each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams can be implemented by computer program instructions.
  • These computer program instructions may be provided to a processor of a general purpose computer (to thereby create a special purpose computer), special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
  • These computer program instructions may also be stored in a computer readable memory or storage medium that can direct a computer or other
  • the computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
  • Computer program code for carrying out operations of the concepts described herein may be written in an object oriented programming language such as Java® or C++.
  • the computer program code for carrying out operations of the disclosure may also be written in conventional procedural programming languages, such as the "C" programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer.
  • the remote computer may be connected to the user's computer through a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider).
  • LAN local area network
  • WAN wide area network
  • Internet Service Provider for example, AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.

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Abstract

La présente invention concerne un procédé, un système et un appareil. Selon l'invention, un dispositif sans fil est configuré pour communiquer avec un nœud de réseau. Le dispositif sans fil est configuré pour utiliser une porteuse d'ancrage et au moins une porteuse sans ancrage. Le dispositif sans fil comprend un ensemble de circuits de traitement configuré pour recevoir des informations permettant d'effectuer au moins une mesure de la ou des porteuses sans ancrage et de notifier la ou les mesures de la ou des porteuses sans ancrage. L'ensemble de circuits de traitement est configuré pour effectuer au moins une mesure de la ou des porteuses sans ancrage sur la base, au moins en partie, des informations reçues, et pour notifier la ou les mesures de la ou des porteuses sans ancrage sur la base, au moins en partie, des informations reçues.
PCT/SE2019/050137 2018-02-15 2019-02-15 Mesure de porteuses sans ancrage WO2019160494A1 (fr)

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