WO2014007264A1 - Station de base dans un système de communication mobile, et procédé de commande - Google Patents

Station de base dans un système de communication mobile, et procédé de commande Download PDF

Info

Publication number
WO2014007264A1
WO2014007264A1 PCT/JP2013/068179 JP2013068179W WO2014007264A1 WO 2014007264 A1 WO2014007264 A1 WO 2014007264A1 JP 2013068179 W JP2013068179 W JP 2013068179W WO 2014007264 A1 WO2014007264 A1 WO 2014007264A1
Authority
WO
WIPO (PCT)
Prior art keywords
call release
state
user devices
user
base station
Prior art date
Application number
PCT/JP2013/068179
Other languages
English (en)
Japanese (ja)
Inventor
聖悟 原野
賢司 深澤
河辺　泰宏
匠吾 矢葺
昌史 増田
Original Assignee
株式会社 エヌ・ティ・ティ・ドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 エヌ・ティ・ティ・ドコモ filed Critical 株式会社 エヌ・ティ・ティ・ドコモ
Publication of WO2014007264A1 publication Critical patent/WO2014007264A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H04W76/36—Selective release of ongoing connections for reassigning the resources associated with the released connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the disclosed invention relates to a base station and a control method in a mobile communication system.
  • the user equipment (UE) in a long term evolution (LTE) mobile communication system operates in an active state or an idle state.
  • the user apparatus (UE) in the active state is managed on the network as an RRC connection established state or an RRC connected state (RRC connected state).
  • RRC connected state RRC connected state
  • the idle state is also referred to as a standby state. In this case, the RRC connection of the user apparatus (UE) is not established.
  • the maximum number of simultaneously connected UEs Since the maximum number of simultaneously connected UEs depends on the processing capability of the base station (eNB) and the network, it is determined for each cell and generally takes a value proportional to the system bandwidth. For example, when the maximum simultaneous connection UE number is 256 when the system bandwidth is 5 MHz, the maximum simultaneous connection UE number is 512 when the system bandwidth is 10 MHz. However, these specific numerical values are merely examples.
  • the active state includes a discontinuous reception (DRX) state and a non-DRX (non-DRX) state.
  • DRX discontinuous reception
  • non-DRX non-DRX
  • the active state is the DRX state
  • the RRC connection of the user apparatus (UE) is maintained, but no user data is transmitted / received, and the user apparatus (UE) receives a signal from the base station (eNB). I'm trying regularly.
  • the non-DRX state the user apparatus (UE) transmits and receives user data.
  • the user apparatus (UE) in the idle state is also common with the user apparatus (UE) operating in the active DRX state in that the user apparatus (UE) in the idle state periodically attempts to receive a signal.
  • the RRC connection and S1 connection with the switching center (MME) are not established in the idle state, whereas the RRC connection and S1 connection are established in the active DRX state.
  • the user apparatus (UE) in the idle state first performs the outgoing / incoming call after executing the procedure for establishing the RRC connection and the S1 connection.
  • the user apparatus (UE) in the active state and the DRX state can quickly make and receive calls using the maintained RRC connection and S1 connection. DRX and the like are described in Non-Patent Document 1.
  • An object of the disclosed invention is to at least alleviate a problem that a new outgoing / incoming call is lost due to a user apparatus that is in an intermittent reception state although an RRC connection is established. .
  • a base station is A base station that controls communication of a user apparatus that operates in an active state in which an RRC connection is established or an idle state in which an RRC connection is not established, When the number of user devices in the active state is equal to or greater than a predetermined call release threshold, one or more user devices are selected from the user devices operating in the intermittent reception state among the user devices in the active state.
  • a call release UE determination unit for determining a call release target; A call release unit that releases an RRC connection of one or more user apparatuses determined to be a call release target and sets an operation state of the one or more user apparatuses to an idle state.
  • the figure which shows the sequence in which a base station (eNB) inquires a switching center (MME) about call release for every UE.
  • MME switching center
  • the figure which shows the sequence which a base station (eNB) inquires of a call release collectively about several UE with respect to a switching center (MME).
  • MME switching center
  • the disclosed invention forcibly idles the operating state of one or more user equipments (UEs) that are in an active state and a DRX state when the number of simultaneously connected UEs in a cell is greater than or equal to a certain call release threshold. Put it in a state.
  • UE user equipment
  • LTE mobile communication system for example, LTE advanced mobile communication system
  • UE mobile device
  • the operation state of the user apparatus includes an active state and an idle state, and the active state includes a DRX state and a non-DRX (non-DRX) state.
  • FIG. 1 is a timing chart showing in detail how the operation state of the user equipment (UE) changes from the non-DRX state to the DRX state in the active state.
  • UE user equipment
  • the user apparatus whose operation state is the “DRX state” is not only a user apparatus whose base station (eNB) is actually receiving the control signal intermittently, but also a TA timer or DRX. It also includes user equipment whose timer has expired.
  • the base station (eNB) transmits a physical downlink control channel (PDCCH) including radio resource allocation information and the like at individual timings t1 to t7.
  • PDCCH physical downlink control channel
  • UE User equipment
  • UE demodulates received PDCCH, identifies radio resources allocated to itself, receives physical downlink shared channel (PDSCH) and / or physical uplink shared (not shown) Transmit the channel (PUSCH).
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared
  • the base station (eNB) in order to ensure temporal synchronization between the base station (eNB) and the user equipment (UE), the base station (eNB) periodically sends a time alignment (TA) command to the user equipment (UE) via the control channel (PDCCH). ).
  • the cycle for transmitting the TA command is, for example, several tens of milliseconds, but other values may be used.
  • the TA command is transmitted at timings t1, t6, t8, and t9. Every time the user apparatus (UE) receives a TA command, (2) the TA timer is reset or restarted. Every time the base station (eNB) transmits a TA command at substantially the same timing, (2) the TA timer is reset or restarted.
  • TI timer of the base station (eNB) is started.
  • the length of the TI timer is about 10 seconds as an example, but other values may be used.
  • TI timer expires at the timing of t10.
  • the expiration of the timer is indicated as “T.O.”.
  • periodic TA command transmission is stopped. For this reason, it is prohibited to transmit the TA command at the period of t11.
  • the (2) TA timer of the base station (eNB) and the user apparatus (UE) expires at the timing of t12.
  • the base station (eNB) releases radio resources reserved for the user apparatus (UE).
  • the radio resource is a resource for transmitting a physical uplink control channel (PUCCH) resource and a sounding reference signal (SRS) in the uplink.
  • PUCCH physical uplink control channel
  • SRS sounding reference signal
  • the user apparatus (UE) reaches the timing of t13 without receiving the PDCCH after the timing of t9, and (3) the DRX timer expires.
  • the user apparatus (UE) transitions from the active non-DRX state to the active DRX state.
  • the base station (eNB) considers that the user apparatus (UE) has transitioned to the active DRX state.
  • the user apparatus (UE) intermittently receives the PDCCH.
  • the DRX state in the active state the mobile phone enters the non-DRX state after making and receiving calls.
  • the operation state transitions to the idle state.
  • the RRC connection established for the user apparatus (UE) is released, and the user apparatus (UE) enters a standby state.
  • both the user device (UE) in the active state and the user device (UE) in the idle state are only trying to receive a signal periodically and not transmitting / receiving user data. Both are common. Therefore, when the total number of user devices (UE) in the active state reaches the maximum number of simultaneously connected UEs or is tight, new outgoing / incoming calls are caused due to the presence of the user device (UE) in the DRX state. There is a concern that the call will be lost.
  • the disclosed invention is an operation state of one or more user equipments (UEs) that are in an active state and in a DRX state when the number of simultaneously connected UEs in a cell is equal to or greater than a certain call release threshold Is forced into an idle state to reduce the number of simultaneously connected UEs.
  • UEs user equipments
  • FIG. 2 shows a functional block diagram of the base station (eNB).
  • FIG. 2 shows various functional units or processing units included in the base station (eNB) that are particularly related to the disclosed invention.
  • the base station (eNB) includes at least a timer unit 203, a UE state management unit 205, a storage unit 207, a call release UE determination unit 209, a call release unit 211, an NW communication unit 213, and a radio communication unit 215.
  • the timer unit 203 starts a timer in response to a predetermined event, and notifies the UE state management unit 205 or the like when the timer has expired.
  • the timers are the (1) traffic inactivity (TI) timer, (2) time alignment (TA) timer, and (3) discontinuous reception (DRX) timer that specifically appeared in the description of FIG.
  • TI traffic inactivity
  • TA time alignment
  • DRX discontinuous reception
  • other timers may be used.
  • the timer unit 203 may include a timer for measuring the cycle.
  • the predetermined event for starting the timer is that there is no user data to be transmitted / received.
  • the predetermined event for starting the timer is the transmission / reception of a TA command.
  • the predetermined event for starting the timer is transmission / reception of PDCCH.
  • the UE state management unit 205 manages the operation state (active state or idle state) of the user equipment (UE) residing in the cell.
  • which user apparatus (UE) is the user apparatus (UE) in the DRX state in the active state is managed with time.
  • the UE state management unit 205 displays the user apparatus (UE) together with time information in a table ( Registered in the call release candidate table). This call release candidate table is stored in the storage unit 207. Further, the UE state management unit 205 deletes the user apparatus (UE) from the call release candidate table in response to the fact that the user apparatus (UE) is no longer in the active DRX state (deregisters). .
  • the storage unit 207 stores various information, data, commands, and the like used in the base station (eNB).
  • the storage unit 207 stores (saves, stores, or holds) the call release candidate table, and the call release candidate table is updated by the UE state management unit 205.
  • FIG. 3 shows an example of a call release candidate table.
  • user apparatuses UE-A, UE-B, UE-C
  • UE-C user apparatuses
  • the call release UE determination unit 209 determines whether or not the number of active user apparatuses (UE) is equal to or greater than a predetermined call release threshold, and the number of active user apparatuses (UE) is a predetermined call release threshold. If so, it is decided to start a forced call release procedure.
  • the forced call release procedure is a procedure for forcibly changing the state of one or more user apparatuses (UEs) in the active state and the DRX state to the idle state.
  • the call release procedure will be described later with reference to FIG. 5, but generally, the call release UE determination unit is one or more user devices (UE) in the active state and the DRX state according to some criterion.
  • (UE) is determined as a call release target.
  • the user apparatus (UE) determined as a call release target is forcibly changed to an idle state later.
  • the call release unit 211 executes a procedure for releasing the RRC connection established for the user apparatus (UE) determined as the call release target.
  • the call release unit 211 first makes an inquiry or notification to the switching center (MME), and executes a call release procedure for each user equipment (UE) according to an instruction from the switching center (MME). .
  • MME switching center
  • the inquiry may be made for each user apparatus (UE), or a plurality of user apparatuses (UE) may be collectively processed. Notification may be made. From the viewpoint of reducing the processing load at the switching center (MME), it is desirable to perform notification collectively as in the latter case.
  • the NW communication unit 213 performs communication between the base station (eNB) and a network communication node (specifically, an exchange station (MME)) via the s1 interface.
  • a network communication node specifically, an exchange station (MME)
  • the wireless communication unit 215 performs communication between the base station (eNB) and the user apparatus (UE) via a wireless interface.
  • FIG. 4 shows an operation flow for updating the call release candidate table.
  • the illustrated operation flow is performed by the UE state management unit 205, the storage unit 207, and the like of the base station (eNB) illustrated in FIG.
  • eNB base station
  • the UE state management unit 205 determines whether or not the operation state of the user apparatus has transitioned to the active DRX state. For example, when the DRX timer expires without the user apparatus (UE) in the non-DRX state receiving the PDCCH, the operation state transitions to the DRX state. If the operation state of the user apparatus has transitioned to the active DRX state, the flow proceeds to step 403. If the user apparatus has not transitioned to the DRX state, the flow proceeds to step 405.
  • the UE state management unit 205 updates the call release candidate table stored in the storage unit 207 so as to newly register the user apparatus (UE) transitioned to the DRX state. For example, when the user apparatus just transitioned to the DRX state is UE-C, as shown in FIG. 3, UE-C is added to the call release candidate table in time order.
  • step 405 it is determined whether any user apparatus (UE) has transitioned from the active DRX state to another state.
  • the other states are specifically an active non-DRX state and an idle state. If none of the user apparatuses (UEs) has transitioned from the active DRX state to another state, the flow returns to step 401 and the described operation is performed. If any user apparatus (UE) transitions from the active DRX state to another state, the flow proceeds to step 407.
  • the user equipment (UE) that has transitioned to another state is excluded from the call release candidate table.
  • the user equipment (UE) that has transitioned to another state is UE-B
  • the data entry “UE-B, 10:39” is stored in the call release candidate table.
  • UE-C becomes the second oldest user equipment.
  • the oldest user apparatus is UE-A, which indicates that UE-A has been operating in the DRX state for the longest time among user apparatuses (UE) operating in the DRX state.
  • the update procedure of the call release candidate table as shown in FIG. 4 may be executed at any suitable timing. Note that the procedure shown in FIG. 4 may be performed every time the operating state of one user apparatus (UE) changes, or may be performed collectively at periodic timing.
  • UE user apparatus
  • FIG. 5 shows an operation flow for performing a forced call release procedure.
  • the illustrated operation flow is performed by the call release UE determination unit 209 and the call release unit 211 of the base station (eNB) shown in FIG.
  • the flow begins at step 501 and proceeds to step 503.
  • the call release UE determination unit 209 determines whether or not the current time is a timing for performing a forced call release procedure.
  • the compulsory call release procedure may be predetermined periodically or periodically, or may be performed irregularly as needed, at both regular and irregular timings. It may be done.
  • the period when periodically performed may be set in advance fixedly, or may be set variably according to the communication status of the cell.
  • the cycle may be set to be long when the number of active user devices (UE) is small, and the cycle may be set to be short when the number of active user devices (UE) is large.
  • a period may be set according to the number of user apparatus (UE) of a DRX state in an active state.
  • a forced call release procedure When performed irregularly, for example, when the number of active user equipments (UEs) exceeds a threshold value, a forced call release procedure may be executed. Alternatively, a forced call release procedure may be executed when the number of user apparatuses (UEs) in the active state and in the DRX state exceeds a threshold value.
  • the compulsory call release procedure may be performed at either a regular timing or an irregular timing, but if it is performed irregularly, call release of a large number of user devices is performed at one time. You might have to deal with it. In that case, there is a concern about network congestion. Therefore, from the viewpoint of reducing such congestion, it is desirable to distribute the processing burden associated with call release to a plurality of periodic timings by executing a forced call release procedure at periodic timings.
  • step S503 if the current time is not the timing for performing the forced call release procedure, the base station (eNB) waits until the timing for performing the forced call release procedure is reached. If the current time is the timing for performing a forced call release procedure, the flow proceeds to step 505.
  • step 505 it is determined whether or not the number of user devices (UE) in an active state, that is, the number of user devices (UE) in a connection state in which an RRC connection is established is equal to or greater than a predetermined call release threshold.
  • the call release threshold value can be any appropriate value that is less than or equal to the maximum number of simultaneously connected UEs. For example, when the maximum number of simultaneously connected UEs is 256, the call release threshold may be set to a value such as 210. However, the specific numerical value is merely an example, and any appropriate value may be used.
  • the user devices (UE) in the DRX state among the user devices (UE) in the active state ) May be determined whether or not the ratio is greater than or equal to a predetermined threshold.
  • the number of user devices (UE) in the active state is equal to or greater than a predetermined call release threshold
  • the number of user devices (UE) in the DRX state among the user devices (UE) in the active state is equal to or greater than another call release threshold. If there is, the call release UE determination unit 209 determines one or more user devices (UE) as the target of call release from the user devices (UE) in the DRX state among the user devices in the active state. It is good.
  • step 505 if the number of connected user equipments (UE) is not equal to or greater than the predetermined call release threshold, the flow proceeds to step 511 and ends. If the number of connected user apparatuses (UEs) is equal to or greater than a predetermined call release threshold, the flow proceeds to step 507.
  • the call release UE determination unit 209 determines one or more user devices as call release targets from among the user devices in the active state and the DRX state. It is assumed that, among user apparatuses (UE) in the active state and in the DRX state, a user apparatus (UE) that is relatively easy to transition to the non-DRX state is released as an object of call release and the RRC connection is released. In this case, in order for the user apparatus (UE) to transmit, for example, some control signal, the control signal is transmitted after first executing the procedure for establishing the RRC connection.
  • this user apparatus In the case of this user apparatus (UE), it is desirable that the user apparatus (UE) is left in the DRX state rather than in the idle state so that a control signal or the like can be transmitted promptly as necessary. For example, when a health check PING signal is frequently transmitted and received, it is desirable to place the user apparatus (UE) in the DRX state. Therefore, it becomes a problem which user apparatus is determined as a call release target (user apparatus to be forcibly activated) among user apparatuses in the active state and the DRX state.
  • a call release target user apparatus to be forcibly activated
  • the first method for determining the target of call release is a predetermined number of user devices in the order in which the time elapsed since the transition to the DRX state is long in the call release candidate table (FIG. 3) stored in the storage unit 207. Is the target of call release.
  • the upper two user apparatuses UE-A and UE-B
  • the number of upper user apparatuses (UE) to be subject to call release may be set to any appropriate value.
  • connection allowance threshold e.g. 180
  • the above call release threshold e.g., 210
  • the target of call release may be determined so as to decrease to an acceptable threshold.
  • the second method for determining the target of call release is that the time elapsed since the transition to the DRX state in the call release candidate table (FIG. 3) stored in the storage unit 207 is not less than a predetermined minimum elapsed time.
  • a user device is determined as a call release target. For example, assume that the current time is 10:41 and the predetermined minimum elapsed time is 2 minutes. In the example shown in FIG. 3, the elapsed time for UE-A is 3 minutes, the elapsed time for UE-B is 2 minutes, and the elapsed time for UE-C is 1 minute. Therefore, UE-A and UE-B whose elapsed time is 2 minutes or more are determined as call release targets.
  • the upper predetermined number of user devices are determined as call release targets in the order of the longest elapsed time without considering the time elapsed since the transition to the DRX state. Therefore, even if the elapsed time is relatively short, there is a risk that the call may be released. In this case, there is a concern about an increase in traffic (a procedure for establishing an RRC connection) due to the transition to the non-DRX state within a short time.
  • the second method since the user equipment (UE) that does not exceed the predetermined minimum elapsed time does not fall under the target of call release, the problem that the elapsed time becomes the target of call release even in a short period of time is Does not occur.
  • the call release unit 211 forcibly sets the operation state of one or more user apparatuses (UEs) determined as a call release target to an idle state. That is, the RRC connection set for those user devices is forcibly released.
  • the base station (eNB) needs to change the user apparatus (UE) to the idle state while exchanging with the exchange (MME).
  • FIG. 6 shows a state in which the base station (eNB) makes a call release inquiry to the switching center (MME) for each user apparatus (UE).
  • eNB base station
  • MME switching center
  • the base station determines a plurality of user apparatuses (UEs) operating in the DRX state as call release targets.
  • UEs user apparatuses
  • the base station transmits a UE context release request (UE context release request), which is a message requesting call release, to the switching center (MME).
  • UE context release request a UE context release request
  • MME switching center
  • the base station receives a UE context release command (UE context release command) as a response to the UE context release request (UE context release request).
  • UE context release command UE context release command
  • Step 605 the base station (eNB) transmits an RRC connection release (RRC connection release), which is a message notifying the user equipment (UE) that call release is to be performed. This notifies the user apparatus (UE) that the RRC connection is released.
  • RRC connection release is a message notifying the user equipment (UE) that call release is to be performed. This notifies the user apparatus (UE) that the RRC connection is released.
  • the base station transmits UE context complete (UE context complete), which is a message indicating completion of call release, to the switching center (MME).
  • UE context complete a message indicating completion of call release
  • the procedure of steps 601, 603, 605, and 607 is repeated by the number of user devices that are the target of call release to release the RRC connection of the user device that is the target of the call release, and the operation state is It is forced to transition to the idle state.
  • the number of user devices targeted for call release is large, it is not always easy to repeat the procedure of steps 601, 603, 605 and 607 by the number of user devices targeted for call release. In that case, it is necessary to exchange the three messages of steps 601, 603, and 607 as many as the number of user devices, which is not necessarily appropriate from the viewpoint of the processing load of the switching center (MME).
  • eNB shows a mode that a call release inquiry is made to a switching center (MME) collectively about several user apparatus (UE).
  • the base station determines a plurality of user apparatuses (UEs) operating in the DRX state as call release targets.
  • UEs user apparatuses
  • step 701 the base station (eNB) transmits a reset (Reset), which is a message requesting call release, to the switching center (MME).
  • the message in the step 701 in FIG. 7 is a message for all the plurality of user apparatuses (UEs) that are the target of call release.
  • step 703 the base station (eNB) receives a reset Ack (Reset Ack) as a response to the reset message.
  • reset Ack reset Ack
  • Step 605 the base station (eNB) transmits an RRC connection release (RRC connection release), which is a message notifying the user equipment (UE) that call release is to be performed. This notifies the user apparatus (UE) that the RRC connection is released.
  • RRC connection release is a message notifying the user equipment (UE) that call release is to be performed. This notifies the user apparatus (UE) that the RRC connection is released.
  • the operating state of the user equipment (UE) that is the target of call release by either method of FIG. 6 or FIG. 7 transitions to the idle state. Then, the operation flow shown in FIG. 5 proceeds to step 511 and ends.
  • FIG. 8 schematically shows how the number of active user equipments (UEs) changes according to the forced call release procedure shown in FIG.
  • the user device (UE) in the active state includes the user device (UE) in the DRX state and the user device (UE) in the non-DRX state that actually transmits and receives user data.
  • a forced call release procedure (steps 505, 507, and 509) shown in FIG. 5 is performed every time a predetermined period measured by a certain timer elapses.
  • the operation flow of FIG. 5 proceeds from step S505 to S511 and ends.
  • two bands are drawn near T, but the left side shows the number of active user equipments (UE) immediately before performing the operation flow of FIG. 5, and the right side performs the operation flow of FIG. It represents the number of user devices (UE) in the active state immediately after.
  • time T there is no change in the number of active user equipments (UE).
  • the number of active user equipments (UE) is less than the call release threshold. Also in this case, the operation flow of FIG. 5 proceeds from step S505 to S511 and ends. Even at 2T, there is no change in the number of active user equipments (UE).
  • the number of active user equipments (UE) is equal to or greater than the call release threshold.
  • the operation flow of FIG. 5 proceeds from step S505 to S507 and 509, and forced call release is performed.
  • the call release is performed for the number of user apparatuses corresponding to the difference so that the number of active user apparatuses is reduced to the connection allowable threshold. For this reason, the number of user apparatuses (UE) in an active state decreases to the connection allowable threshold value.
  • the number of active user equipments (UE) is less than the call release threshold. In this case, the operation flow of FIG. 5 proceeds from step S505 to S511 and ends. At the time of 4T, the number of active user apparatuses (UE) has not changed.
  • the number of user devices (UE) in the active state is equal to or greater than the call release threshold
  • one or more user devices (UE) in the DRX state are designated and designated.
  • the RRC connection of the user apparatus (UE) is released, and the operation state is forcibly changed to the idle state.
  • the disclosed invention is not limited to such a form, and those skilled in the art will recognize various modifications, modifications, alternatives, replacements, and the like. You will understand.
  • the disclosed invention may be applied to any appropriate mobile communication system in which a user apparatus operates in an active state or an idle state.
  • specific numerical examples have been described in order to facilitate understanding of the invention, these numerical values are merely examples and any appropriate values may be used unless otherwise specified.
  • specific mathematical formulas have been used to facilitate understanding of the invention, these mathematical formulas are merely examples unless otherwise specified, and other mathematical formulas that yield similar results may be used. Good.
  • the classification of items in the above description is not essential to the present invention, and the items described in two or more items may be used in combination as necessary, or the items described in one item may be used in different items. It may be applied to the matters described in (if not inconsistent).
  • the boundaries between functional units or processing units in the functional block diagram do not necessarily correspond to physical component boundaries.
  • the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
  • the base station has been described using a functional block diagram, but such a device may be implemented in hardware, software, or a combination thereof.
  • RAM random access memory
  • ROM read only memory
  • EPROM EPROM
  • EEPROM electrically erasable programmable read-only memory
  • registers hard disk (HDD)
  • HDD hard disk
  • removable disk CD-ROM
  • database server and other suitable It may be stored in any storage medium.
  • the present invention is not limited to the above embodiments, and various modifications, modifications, alternatives, substitutions, and the like are included in the present invention without departing from the spirit of the present invention.

Abstract

L'invention porte sur une station de base qui commande une communication par un dispositif utilisateur fonctionnant dans un état actif avec connexion RRC établie ou dans un état de repos sans connexion RRC établie, qui comprend : une unité de détermination d'UE pour libération de communication qui détermine, lorsque le nombre des dispositifs utilisateurs dans l'état actif n'est pas inférieur à une valeur de seuil de libération de communication prédéterminée, un ou plusieurs dispositifs utilisateurs, parmi ceux des dispositifs utilisateurs dans l'état actif qui fonctionnent dans un état de réception intermittente, en tant qu'objet pour libération de communication ; et une unité de libération de communication qui libère la connexion RRC du ou des dispositifs utilisateurs déterminés en tant qu'objet pour libération de communication, et qui met l'état de fonctionnement du ou des dispositifs utilisateurs dans l'état de repos.
PCT/JP2013/068179 2012-07-05 2013-07-02 Station de base dans un système de communication mobile, et procédé de commande WO2014007264A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012151210A JP5466270B2 (ja) 2012-07-05 2012-07-05 移動通信システムにおける基地局及び制御方法
JP2012-151210 2012-07-05

Publications (1)

Publication Number Publication Date
WO2014007264A1 true WO2014007264A1 (fr) 2014-01-09

Family

ID=49882018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/068179 WO2014007264A1 (fr) 2012-07-05 2013-07-02 Station de base dans un système de communication mobile, et procédé de commande

Country Status (2)

Country Link
JP (1) JP5466270B2 (fr)
WO (1) WO2014007264A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015111377A1 (fr) * 2014-01-21 2015-07-30 日本電気株式会社 Dispositif de mesure et procédé de lecture de mesure à distance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5869069B1 (ja) * 2014-07-31 2016-02-24 株式会社Ｎｔｔドコモ 無線制御装置及び無線制御方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002093971A1 (fr) * 2001-05-11 2002-11-21 Telefonaktiebolaget L M Ericsson (Publ) Diffusion de plusieurs connexions radio a l'aide d'un message de diffusion omnibus
WO2009062304A1 (fr) * 2007-11-13 2009-05-22 Research In Motion Limited Procédé et appareil de passage entre des états ou des modes de fonctionnement
JP2009130780A (ja) * 2007-11-27 2009-06-11 Nec Corp 無線基地局装置および輻輳制御方法
WO2011129343A1 (fr) * 2010-04-15 2011-10-20 株式会社 エヌ・ティ・ティ・ドコモ Système de communications mobiles, dispositif de régulation et procédé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002093971A1 (fr) * 2001-05-11 2002-11-21 Telefonaktiebolaget L M Ericsson (Publ) Diffusion de plusieurs connexions radio a l'aide d'un message de diffusion omnibus
WO2009062304A1 (fr) * 2007-11-13 2009-05-22 Research In Motion Limited Procédé et appareil de passage entre des états ou des modes de fonctionnement
JP2009130780A (ja) * 2007-11-27 2009-06-11 Nec Corp 無線基地局装置および輻輳制御方法
WO2011129343A1 (fr) * 2010-04-15 2011-10-20 株式会社 エヌ・ティ・ティ・ドコモ Système de communications mobiles, dispositif de régulation et procédé

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015111377A1 (fr) * 2014-01-21 2015-07-30 日本電気株式会社 Dispositif de mesure et procédé de lecture de mesure à distance
JPWO2015111377A1 (ja) * 2014-01-21 2017-03-23 日本電気株式会社 メータリング装置、及び遠隔検針のための方法

Also Published As

Publication number Publication date
JP2014014040A (ja) 2014-01-23
JP5466270B2 (ja) 2014-04-09

Similar Documents

Publication Publication Date Title
US8792423B2 (en) Method and arrangement for RRC switching
RU2578666C2 (ru) Уменьшение избыточной сигнализации при переходах между состояниями управления радиоресурсами (rrc)
US9107190B2 (en) Discontinuous reception for multi-component carrier system
US11191020B2 (en) Terminal state conversion method and apparatus
US20220124624A1 (en) Terminal energy-saving method, base station, terminal, terminal energy-saving system and computer-readable storage medium
EP2983416B1 (fr) Méthode, appareil et système de radiomessagerie
JP2017513345A (ja) デバイス・ツー・デバイス通信装置および方法
KR102240644B1 (ko) 데이터 전송/수신 장치 및 방법, 및 통신 시스템
EP3567973B1 (fr) Procédé de communication, terminal et dispositif de réseau d'accès
JP2015515811A (ja) ハイブリッドクライアントデバイス受信停止イベントのネットワークに基づく検出及び軽減
JPWO2016158394A1 (ja) 基地局及びユーザ装置
KR102303500B1 (ko) 단말의 연결 상태 제어 방법 및 장치
JP6499775B2 (ja) 遅延寛容トラフィックを伴うデバイスの非アクティビティの取扱い
US20130195049A1 (en) Radio Resource Control Connection Release For User Devices Out Of Up Link Time Alignment
EP2829144B1 (fr) Système et procédé pour prendre en charge une commutation entre un réseau à commutation de paquets et réseau à commutation de circuits
US9955525B2 (en) Radio base station and method therein
US10863428B2 (en) Apparatus, system and method for optimized tune away procedures
CN111294899B (zh) 用于drx的不活动定时器控制方法及装置、存储介质、终端、基站
JP7163405B2 (ja) リジェクトウェイトタイムの処理
JP6248012B2 (ja) 基地局、間欠受信制御方法、及びタイマ制御方法
CA3071169A1 (fr) Procede et dispositif de reinitialisation de couche de commande d'acces au support
JP5466270B2 (ja) 移動通信システムにおける基地局及び制御方法
CN111837434A (zh) 网络辅助的紧急情况监测
JP6414322B2 (ja) 無線通信システム、無線端末及び無線通信方法
WO2021056469A1 (fr) Procédé et dispositif de commande de temporisateur

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13813380

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13813380

Country of ref document: EP

Kind code of ref document: A1