WO2010048851A1 - Procédé de mesure de mobilité et équipement utilisateur, station de base d'un réseau d'évolution - Google Patents

Procédé de mesure de mobilité et équipement utilisateur, station de base d'un réseau d'évolution Download PDF

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Publication number
WO2010048851A1
WO2010048851A1 PCT/CN2009/074400 CN2009074400W WO2010048851A1 WO 2010048851 A1 WO2010048851 A1 WO 2010048851A1 CN 2009074400 W CN2009074400 W CN 2009074400W WO 2010048851 A1 WO2010048851 A1 WO 2010048851A1
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Prior art keywords
measurement
measurement interval
offset
module
interval
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PCT/CN2009/074400
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English (en)
Chinese (zh)
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高闻
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华为技术有限公司
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the embodiments of the present invention relate to the field of communications, and in particular, to a mobility measurement method, a user equipment, and a network base station. Background technique
  • Mobility measurements are divided into intra-frequency, inter-frequency, and inter-system measurements.
  • intra-frequency measurements the UE can perform normal data transmission and reception and measurement simultaneously in the same frequency band of the LTE system.
  • inter-frequency and inter-system measurement the UE generally needs to perform frequency hopping during measurement, so it cannot be normal at the same time.
  • Data transmission and reception, in order to distinguish between measurement and normal service, while taking into account the measurement quality and reducing the impact on normal services the network side configures the measurement gap in the measurement configuration parameters for inter-frequency and inter-system measurement.
  • the UE performs measurements during the measurement interval, at which time normal data transmission and reception will stop.
  • the measurement interval length is 6ms, and there are two cycles: 40ms and 80ms.
  • a parameter for measuring the interval offset (gapOffset) is also configured to stipulate the starting position of the measurement interval in the measurement period, and the UE performs the mobility measurement according to the measurement interval offset.
  • the UE uses the Discontinuous Reception (DRX) mode to save power.
  • DRX Discontinuous Reception
  • the UE monitors the physical downlink control channel (the Physical Downlink) at the on duration of the DRX cycle.
  • Control Channel, PDCCH if there is a scheduling of the evolved network base station (eNB), the service data is sent and received according to the scheduling, and the PDCCH is continuously monitored. If the scheduling of the eNB is not received within the DRX duration, the UE enters sleep (sleep) ) Time, that is, the transceiver is turned off, and it is in a power saving state. The eNB does not schedule data for the UE during this time until the next DRX duration.
  • sleep sleep
  • the DRX duration may be in conflict with the measurement interval, that is, the DRX duration is completely in the measurement interval. Therefore, the UE does not monitor the PDCCH for data scheduling within the measurement interval, so that the service data of the eNB cannot be sent or even lost in time.
  • the embodiments of the present invention provide a mobility measurement method, a user equipment, and an evolved network base station, which are used to solve the problem that the service data is not sent or lost when the DRX duration is completely at the measurement interval.
  • the embodiment of the invention provides a mobility measurement method, including:
  • the measurement configuration parameter including a first measurement interval offset; when the discontinuous reception DRX duration is within a measurement interval determined according to the first measurement interval offset, according to the second measurement interval Measurements are taken within the measurement interval determined by the offset.
  • An embodiment of the present invention provides another mobility measurement method, including:
  • the measurement configuration parameter including a first measurement interval offset; extending the DRX duration when the discontinuous reception DRX duration is within a measurement interval determined according to the first measurement interval offset And measuring within a measurement interval determined according to the first measurement interval offset; the extension of the DRX duration is between the measurement interval length and the DRX sleep time length.
  • the embodiment of the invention provides a user equipment, including:
  • a receiving module configured to receive a measurement configuration parameter, where the measurement configuration parameter includes a first measurement interval Separation offset
  • a detecting module configured to determine whether the discontinuous reception DRX duration is within a measurement interval determined according to the first measurement interval offset, and if yes, triggering the measurement module;
  • a measuring module configured to perform measurement within a measurement interval determined according to the second measurement interval offset amount when triggered by the detection module.
  • An embodiment of the present invention provides an evolved network base station, including:
  • a sending module configured to send a measurement configuration parameter, where the measurement configuration parameter includes a first measurement interval offset and a second measurement interval offset; the first measurement interval offset determines a measurement interval and the second The measurement interval determined by the measurement interval offset is within the same measurement interval period, and the minimum value of the difference between the first measurement interval offset and the second measurement interval offset is the measurement interval length; the receiving module is configured to receive Reported measurement report.
  • An embodiment of the present invention provides another user equipment, including:
  • a receiving module configured to receive a measurement configuration parameter, where the measurement configuration parameter includes a first measurement interval offset
  • a detecting module configured to determine whether the discontinuous reception DRX duration is within a measurement interval determined according to the first measurement interval offset, and if yes, triggering the control module;
  • control module configured to extend the DRX duration and trigger the measurement module when triggered by the detection module, where the extension of the DRX duration is between the measurement interval length and the DRX sleep time length;
  • a measuring module configured to perform measurement within a measurement interval determined according to the first measurement interval offset when triggered by the control module.
  • DRAWINGS 1 is a flowchart of Embodiment 1 of a mobility measurement method according to the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a mobility measurement method according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a mobility measurement method according to the present invention.
  • FIG. 4 is a timing diagram of a third embodiment of a mobility measurement method according to the present invention.
  • FIG. 5 is a flowchart of Embodiment 1 of another mobility measurement method according to the present invention.
  • Embodiment 6 is a flowchart of Embodiment 2 of another mobility measurement method according to the present invention.
  • Embodiment 7 is a timing diagram of Embodiment 2 of another mobility measurement method according to the present invention.
  • FIG. 8 is a schematic structural diagram of an embodiment of a user equipment according to the present invention.
  • FIG. 9 is a schematic structural diagram of an embodiment of an evolved network base station according to the present invention.
  • FIG. 10 is a schematic structural diagram of another embodiment of a user equipment according to the present invention. detailed description
  • FIG. 1 it is a flowchart of Embodiment 1 of a mobility measurement method according to the present invention, which specifically includes the following steps:
  • Step 101 Receive a measurement configuration parameter, where the measurement configuration parameter includes a first measurement interval offset.
  • Step 102 When the DRX duration is within a measurement interval determined according to the first measurement interval offset, the measurement is performed within a measurement interval determined by the second measurement interval offset.
  • the DRX duration in the measurement interval specifically means that the start time point of the DRX duration is not earlier than the start time point of the measurement interval, and the end time point of the DRX duration is not Later than the end time of the measurement interval.
  • the case where the DRX duration is within the measurement interval will be simply referred to as the measurement interval and the DRX duration conflict.
  • the measurement interval is determined according to the measurement interval determined by the second measurement interval offset, so that the measurement interval and the DRX duration can be staggered, so that the service data can be normally scheduled during the DRX duration, and the loss of service data is avoided.
  • FIG. 2 it is a flowchart of Embodiment 2 of a mobility measurement method according to the present invention.
  • This embodiment is described by taking a UE mobility measurement as an example, and specifically includes the following steps:
  • Step 201 The UE receives, by the eNB, a measurement configuration parameter that includes a first measurement interval offset and a second measurement interval offset.
  • the signaling carrying the measurement configuration parameter may be Radio Resource Control (RRC) signaling, for example, the measurement configuration parameter is included in a MeasurementConfiguration information element of the RRC signaling, where the MeasurementConfiguration information element is further included for The MeasGapConfig information element of the measurement interval is configured, and the MeasGapConfig information element includes a measurement interval (gap) with a period of 40 ms and a measurement interval (gap2) with a period of 80 ms, and a measurement interval offset of each measurement interval: the first measurement interval is biased
  • the shift (which may also be referred to as the primary measurement interval offset, ie, primary gapOffset) and the second measurement interval offset (which may also be referred to as the secondary measurement interval offset, ie, secondary gapOffset).
  • the parameter values of the first measurement interval offset and the second measurement interval offset can satisfy: a measurement interval determined according to the first measurement interval offset and a measurement interval determined according to the second measurement interval offset During the same measurement interval period, and the minimum value of the difference between the two is the measurement interval length.
  • the parameter values of the two measurement interval offsets should be as wide as possible during the measurement interval period.
  • the minimum value of the difference between the two measurement interval offsets may be the measurement interval length.
  • the maximum value of the difference can be the maximum value that can be achieved during the same measurement interval period.
  • the measurement interval period is 40ms
  • the measurement interval length is 6ms
  • the first measurement interval offset is 21, then the second measurement interval offset can be in the range of 0-15 and 27-34.
  • Step 202 The UE determines whether the DRX duration is within the measurement interval determined according to the first measurement interval offset, and if yes, step 204 is performed; otherwise, step 203 is performed;
  • Step 203 The UE performs measurement in a measurement interval determined according to the first measurement interval offset. Specifically, the UE determines, by detecting, that the measurement in the measurement interval determined according to the first measurement interval offset does not cause the DRX duration to be within the measurement interval determined by the first measurement interval offset, and then uses the first measurement. The measurement is performed at intervals.
  • This step is applicable to the case where the measurement interval is configured in the sleep time of the UE, the period of the DRX and the measurement interval period are matched with each other, and the period of the DRX is not matched with the measurement interval period, but the first measurement interval is used for most of the time.
  • the shift is measured so that the measurement interval does not conflict with the DRX duration.
  • Step 204 The UE performs measurement in a measurement interval determined according to the second measurement interval offset.
  • the measurement may be avoided within the measurement interval determined according to the second measurement interval offset, so that the measurement interval and the DRX The duration is staggered.
  • a measurement report may be generated and sent to the eNB.
  • the eNB provides two measurement configuration parameters of the measurement interval offset for the UE, so that the UE determines that the DRX duration is within the measurement interval determined according to the first measurement interval offset, and at the second measurement interval.
  • the measurement is performed within the measurement interval determined by the offset, such that the measurement interval is
  • the DRX duration can be staggered to ensure that the service data can be scheduled normally during the DRX duration, and the loss of service data is avoided.
  • FIG. 3 it is a flowchart of Embodiment 3 of a mobility measurement method according to the present invention.
  • FIG. 4 it is a timing diagram of Embodiment 3 of a mobility measurement method according to the present invention.
  • the mobility measurement is introduced as an example, and includes the following steps:
  • Step 301 The UE receives the measurement configuration parameter that is sent by the eNB and includes the first measurement interval offset.
  • the signaling that carries the measurement configuration parameter may be RRC signaling.
  • the measurement configuration parameter is included in the MeasurementConfiguration of the RRC signaling.
  • the MeasurementConfiguration information unit further includes a MeasGapConfig information element for configuring a measurement interval, where the MeasGapConfig information element includes a measurement interval (gapl) with a period of 40 ms and a measurement interval (gap2) with a period of 80 ms, and each measurement interval.
  • First A measurement interval offset is a measurement interval offset.
  • Step 302 The UE determines whether the DRX duration is within the measurement interval determined according to the first measurement interval offset, and if yes, step 304 is performed; otherwise, step 303 is performed;
  • Step 303 The UE performs measurement in a measurement interval determined by the first measurement interval offset.
  • the UE determines, by using the detection calculation, that when the measurement is performed by using the first measurement interval offset, the DRX duration is not caused within the measurement interval.
  • the measurement is then made within the measurement interval determined by the first measurement interval.
  • This step is applicable to the case where the measurement interval is configured in the sleep time of the UE, the period of the DRX and the measurement interval period are matched with each other, and the period of the DRX is not matched with the measurement interval period, but the first measurement interval is used most of the time.
  • the offset is measured such that the measurement interval does not conflict with the DRX duration.
  • Step 304 Offset the measurement interval forward or backward by one or more transmission time intervals (TTI) during the measurement interval period in which the measurement interval is located, and determine the second measurement interval offset;
  • TTI transmission time intervals
  • Step 305 Perform measurement within a measurement interval determined according to the second measurement interval offset. Further, after performing measurement, the UE may generate a measurement report and send it to the eNB.
  • the process of step 304 above is performed, and the measurement interval is shifted from position A to position B so that the measurement interval and the DRX duration can be staggered.
  • the measurement interval is shifted forward or backward by more than one transmission time interval, which means that the measurement interval offset changes, where the sum of the first measurement interval offset and the offset time length is taken as the second Measure the interval offset.
  • the number of offset TTIs may be determined by the UE and the eNB according to the measurement interval. Specifically, the measurement interval determined according to the first measurement interval offset and the measurement interval determined according to the second measurement interval offset should be in the same measurement. During the interval period, the minimum value of the difference between the two should be the length of the measurement interval.
  • the minimum value of the length of the offset may be the length of the measurement interval, and the maximum value may be the maximum value that can be obtained during the same measurement interval period.
  • the number of offsets is equal to the quotient of the length of the offset and the length of the TTI. For example: the measurement interval period is 40ms, the measurement interval length is 6ms, the TTI length is 2ms, and the first measurement interval offset is 21, then the offset time length ranges from 6ms-21ms, the number of offset TTIs ranges from 3-10.
  • the UE when the UE determines that the DRX duration is within the measurement interval determined according to the first measurement interval offset, the UE shifts the measurement interval forward or backward during the measurement interval period in which the measurement interval is located.
  • the measurement interval and the DRX duration can be staggered to ensure that the service data can be normally scheduled during the DRX duration, and the loss of service data is avoided.
  • FIG. 5 it is a flowchart of Embodiment 1 of another mobility measurement method according to the present invention, which specifically includes the following steps:
  • Step 401 Receive a measurement configuration parameter, where the measurement configuration parameter includes a first measurement interval offset.
  • Step 402 Extend a DRX duration when the DRX duration is within a measurement interval determined according to the first measurement interval offset, and perform measurement within a measurement interval determined by the first measurement interval offset; the DRX duration The amount of extension is between the length of the measurement interval and the length of the DRX sleep time.
  • the DRX duration is extended, so that the UE can monitor the PDCCH and perform normal scheduling of service data during the extended period, thereby avoiding The loss of business data.
  • FIG. 6 is a flowchart of Embodiment 2 of another mobility measurement method according to the present invention.
  • FIG. 7 is a timing diagram of Embodiment 2 of another mobility measurement method according to the present invention.
  • the eNB performs mobility measurement on the UE as an example, and specifically includes the following steps:
  • Step 501 The UE receives the measurement configuration parameter that is sent by the eNB and includes the first measurement interval offset.
  • the signaling that carries the measurement configuration parameter may be RRC signaling.
  • the measurement configuration parameter is included in the MeasurementConfiguration of the RRC signaling.
  • the MeasurementConfiguration information unit further includes a MeasGapConfig information element for configuring a measurement interval, where the MeasGapConfig information element includes a measurement interval (gap) with a period of 40 ms and a measurement interval (gap2) with a period of 80 ms, and each measurement interval.
  • the first measurement interval offset The UE determines whether the DRX duration is within the measurement interval determined according to the first measurement interval offset, and if yes, step 503 is performed; otherwise, step 504 is performed;
  • Step 503 Extend the duration of the DRX, and the extension of the DRX duration is between the length of the measurement interval and the length of the DRX sleep time;
  • Step 504 The UE performs measurement in a measurement interval determined according to the first measurement interval offset. Further, after performing measurement, the UE may generate a measurement report and send the measurement report to the eNB.
  • the extension of the DRX duration may be the length of the measurement interval, that is, the length of the extended DRX duration is the sum of the length of the original DRX duration and the length of the measurement interval. For example, if the measurement interval length is 6ms, the extended DRX duration length is equal to the original DRX duration length +6ms; the DRX duration extension can also be greater than the measurement interval length, and only the extended DRX duration is required to be in the DRX cycle.
  • the maximum value of the DRX duration is the DRX sleep time length.
  • the DRX duration is extended, so that the UE can monitor the PDCCH and perform normal scheduling of service data in the extended period. , to avoid the loss of business data.
  • FIG. 8 is a schematic structural diagram of an embodiment of a user equipment according to the present invention.
  • the embodiment specifically includes: a receiving module 11, a detecting module 12, and a measuring module 13; wherein, the receiving module 11 is configured to receive measurement configuration parameters, where The measurement configuration parameter includes a first measurement interval offset, and the detection module 12 is configured to determine whether the DRX duration is within a measurement interval determined according to the first measurement interval offset. If yes, the measurement module 13 is triggered, and the measurement module 13 is used. When triggered by the detection module 12, measurements are taken within a measurement interval determined by the second measurement interval offset.
  • the receiving module 11 is further configured to receive the second measurement interval offset.
  • the measuring module 13 can also be configured to, when triggered by the detecting module 12, offset the measurement interval by one or more forward or backward within the measurement period in which the measurement interval is located.
  • the second measurement interval offset is measured according to the measurement interval determined by the second measurement interval offset.
  • the measurement module 13 can also be used to determine the number of offset TTIs based on the measurement interval.
  • the number of offsets is equal to the quotient of the length of the offset and the length of the ,.
  • the minimum length of the offset may be the length of the measurement interval, and the maximum value may be the maximum value that can be obtained during the same measurement interval period. .
  • the present embodiment may further include a reporting module 14, and the reporting module 14 may report to the eNB a measurement report that is measured according to the second measurement interval offset.
  • the UE receives or determines the second measurement interval offset, so that when it is determined that the DRX duration is within the measurement interval determined according to the first measurement interval offset, the measurement is performed by using the second measurement interval offset, such that The measurement interval and the DRX duration can be staggered to ensure that the service data can be normally scheduled during the DRX duration, and the loss of service data is avoided.
  • FIG. 9 it is a schematic structural diagram of an embodiment of an evolved network base station according to the present invention.
  • the embodiment specifically includes: a sending module 21 and a receiving module 22; wherein the sending module 21 includes a first measurement interval offset and a second The measurement configuration parameter of the measurement interval offset is sent to the UE, and the receiving module 22 receives the measurement report reported by the UE.
  • the parameter values of the first measurement interval offset and the second measurement interval offset can satisfy: the measurement interval determined according to the first measurement interval offset and the measurement interval determined according to the second measurement interval offset are the same
  • the minimum value of the difference between the two is the length of the measurement interval.
  • the parameter values of the two measurement interval offsets should be as wide as possible during the measurement interval period.
  • the minimum value of the difference between the two measurement interval offsets may be the measurement interval length.
  • the maximum value of the difference can be the maximum value that can be achieved during the same measurement interval period.
  • a second measurement interval offset is added, so that the UE can perform measurement by using the measurement interval determined by the second measurement interval offset.
  • FIG. 10 it is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • the embodiment specifically includes: a receiving module 41, a detecting module 42, a control module 43, and a measuring module 44.
  • the receiving module 41 is configured to receive the first a measurement configuration parameter for measuring the interval offset
  • the detecting module 42 is configured to determine whether the DRX duration is within a measurement interval determined according to the first measurement interval offset, if If yes, the control module 43 is configured to extend the DRX duration when triggered by the detection module 42 and trigger the measurement module 44.
  • the extension of the DRX duration is located between the measurement interval length and the DRX sleep time length.
  • the measurement module 44 is configured to perform measurement within the measurement interval determined by the first measurement interval offset when triggered by the control module 43.
  • control module 43 can notify the timing module for setting the DRX duration, and update the DRX duration, and the updated DRX duration length is equal to the sum of the original DRX duration length and the extension amount.
  • the present embodiment may further include a reporting module 45, and the reporting module 45 may report the measurement obtained according to the first measurement interval offset to the eNB.
  • the control module 43 when the detecting module 42 determines that the DRX duration is within the measurement interval determined according to the first measurement interval offset, the control module 43 extends the DRX duration, so that the UE can monitor the PDCCH in the extended period and The business data can be scheduled normally, and the loss of business data is avoided.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. It is not limited thereto; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or some of the technologies. The features are equivalent to the equivalents of the technical solutions of the embodiments of the embodiments of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne, selon des modes de réalisation, des procédés de mesure de mobilité et un équipement utilisateur, ainsi qu'une station de base d'un réseau d'évolution. Un procédé consiste à recevoir des paramètres de configuration de mesure qui comprennent un premier décalage d'intervalle de mesure ; lorsque la durée d'une réception discontinue (DRX) s’inscrit dans les limites de l’intervalle de mesure défini sur la base du premier décalage d'intervalle de mesure, la mesure étant réalisée lors de l'intervalle de mesure défini sur la base d'un second décalage d'intervalle de mesure. Un autre procédé consiste à recevoir des paramètres de configuration de mesure qui comprennent un premier décalage d'intervalle de mesure ; lorsque la durée DRX s’inscrit dans les limites de l'intervalle de mesure défini sur la base du premier décalage d'intervalle de mesure, la durée étant prolongée et la mesure étant réalisée lors de l'intervalle de mesure défini sur la base du premier décalage d'intervalle de mesure ; la quantité prolongée de la durée étant comprise entre la longueur d'intervalle de mesure et la longueur du temps de veille. Grâce aux modes de réalisation de l'invention, une planification normale des données de service pendant la durée DRX pourrait être garantie et la perte de données de service pourrait être évitée.
PCT/CN2009/074400 2008-10-31 2009-10-10 Procédé de mesure de mobilité et équipement utilisateur, station de base d'un réseau d'évolution WO2010048851A1 (fr)

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