WO2016123971A1 - Procédé et terminal de détection de capacité de réception discontinue, et dispositif côté réseau - Google Patents

Procédé et terminal de détection de capacité de réception discontinue, et dispositif côté réseau Download PDF

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Publication number
WO2016123971A1
WO2016123971A1 PCT/CN2015/088779 CN2015088779W WO2016123971A1 WO 2016123971 A1 WO2016123971 A1 WO 2016123971A1 CN 2015088779 W CN2015088779 W CN 2015088779W WO 2016123971 A1 WO2016123971 A1 WO 2016123971A1
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Prior art keywords
terminal
network side
drx
active state
short
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PCT/CN2015/088779
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English (en)
Chinese (zh)
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马伟
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中兴通讯股份有限公司
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Publication of WO2016123971A1 publication Critical patent/WO2016123971A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the embodiments of the present invention relate to a Long Time Evolution (LTE) technology in a mobile communication technology, and more particularly to a method, a terminal, and a network side device for detecting a discontinuous reception capability based on a mobile LTE communication network.
  • LTE Long Time Evolution
  • the discontinuous reception (DRX) function control entity in LTE is located in the medium access control (MAC) layer of the protocol stack, and its main function is to control sending an instruction to the physical layer to notify the physical layer to listen for the downlink control information at a specific time.
  • the physical downlink control channel (PDCCH) is in the active period, and the receiving antenna is not turned on during the rest of the time, and is in a sleep state.
  • the UE When the UE is configured with the DRX function, the UE will monitor the PDCCH during the activation period. If the DRX function is configured in the RRC_CONNECTED state, the UE uses the DRX operating specification to continuously monitor the PDCCH. In DRX mode, all timers and parameters are set through the RRC layer.
  • the timers related to the DRX are mainly: (1) Duration timer (OnDurationTimer): the number of subframes of the PDCCH that the UE needs to monitor during each DRX period. For the rest of the time, the UE can turn off its receiver.
  • DRX Inactivity Timer a subframe of the continuously monitored inactive PDCCH after the UE successfully decodes the PDCCH indicating the uplink (UL) or downlink (DL) initial transmission. The number, that is, the UE must be able to enter the DRX state without monitoring the PDCCH associated with the UE within this time.
  • DRX-Retransmission Timer In the retransmission mode, the UE expects to receive the DL Retransmission time, that is, it takes so much time to receive the downlink retransmission. The receiving antenna monitoring PDCCH will be turned on during the above three timers.
  • drxStartOffset refers to the on-duration timer (Onduration Timer) in the first sub-frame, enters the activation period.
  • the timer onDurationTimer is started, and the UE starts to monitor the PDCCH channel.
  • the DRX working mechanism in the radio resource control (RRC) connection state uses the working mode in which the timer is combined with the DRX cycle, and the base station eNB also maintains the same DRX working mode as the UE, and knows in real time that the UE is in the active period. It is also a sleep period, so it is guaranteed to pass data during the activation period, and no data transmission during the sleep period.
  • RRC radio resource control
  • the onDurationTimer timer is started to start monitoring the PDCCH.
  • the onDurationTimer timer is started to start monitoring the PDCCH.
  • DRX-InactivityTimer has not timed out and then receives a packet (2), but the decoding fails, then two timers are started: one is the DRX-InactivityTimer timer
  • HARQ RTT timer internal timer
  • the new packet since the new packet is successfully decoded, it waits until the timer expires, and it enters the sleep state. It is. After a period of time, the cycle ends and the start point of the next cycle is entered, so the onDurationTimer timer needs to be restarted. Before the timer expires, the HARQ RTT timer expires. The UE considers that the retransmission may arrive later. Therefore, the HARQ retransmission timer is started to monitor the retransmitted PDCCH information, and then retransmitted, and succeeded.
  • the prior art gives the basic principle of reception of LTE DRX and the synchronization mechanism of the network and the terminal.
  • the terminal supports DRX, especially when both short-cycle and long-period DRX are configured, the terminal does not have the capability of discontinuous reception.
  • the embodiment of the present invention provides a method for detecting discontinuous reception capability, a terminal, and a network side device, which can determine whether the terminal has discontinuous reception capability if the terminal is configured with a short period and/or a long period DRX.
  • the embodiment of the invention discloses a method for detecting discontinuous reception DRX capability, including:
  • the hybrid automatic weight is returned. Requesting a HARQ confirmation message ACK to the network side;
  • the terminal After the current duration timer expires, the terminal receives the MAC PDU sent by the network side at least when the duration timer of any short period DRX is in the active state, and then returns the HARQ ACK to the network side again for determining.
  • the terminal has a discontinuous reception capability when configured with a short period DRX.
  • the foregoing method further includes:
  • the terminal After waiting for the discontinuous reception short period timer to expire, if the terminal correctly receives the MAC PDU sent by the network side when the duration timer of the long period DRX is in the active state, returning the HARQ ACK to the network side;
  • the terminal receives the MAC PDU sent by the network side at least when the duration timer of any long-period DRX is in the active state, and returns the HARQ ACK confirmation information to the network side again. For determining that the terminal has discontinuous reception capability when configured with long-period DRX.
  • the embodiment of the invention also discloses a method for detecting DRX capability, including:
  • the network side terminal After the network side configures the short-period DRX parameter for the terminal, when the duration timer of the short-period DRX is in an active state, the network side terminal sends a medium access control MAC layer user packet data unit PDU to detect whether the terminal returns to the hybrid.
  • Automatic retransmission request HARQ acknowledgement information ACK ACK
  • the network side is at least in any short period of DRX
  • the MAC PDU is sent again to the terminal, and it is detected whether the terminal returns a HARQ ACK;
  • the network side detects the HARQ ACK returned by the terminal at least when the duration timers of the two short-period DRXs are in an active state, it is determined that the terminal has a discontinuous reception capability when configured with a short period DRX.
  • the foregoing method further includes:
  • the network side After waiting for the discontinuous reception short period timer to expire, when the duration timer of the long period DRX is in an active state, the network side sends a MAC PDU to the terminal to detect whether the terminal returns a HARQ ACK;
  • the network side After the current duration timer expires, the network side sends the MAC PDU to the terminal again when the duration timer of any long-period DRX is in an active state;
  • the network side detects the HARQ ACK returned by the terminal at least when the duration timers of the two long-period DRX process the activation state, it is determined that the terminal has a discontinuous reception capability when configured with the long-period DRX.
  • the duration of the short period configured by the network side for the terminal is included in 2 to 10 short periods.
  • the duration of the short period configured by the network side for the terminal is 3 short periods.
  • the embodiment of the invention further discloses a terminal device, which comprises at least a receiving unit and a sending unit, wherein:
  • a receiving unit configured to receive a medium access control MAC layer user packet data unit PDU sent by the network side when the duration timer of the short period discontinuous reception DRX is in an active state;
  • the sending unit is configured to return the hybrid automatic repeat request HARQ to the network side if the receiving unit correctly receives the MAC PDU sent by the network side when the duration timer of the short period DRX is in the active state. Confirmation message ACK.
  • the receiving unit is further configured to: after the discontinuous reception short period timer expires, receive the MAC PDU sent by the network side when the duration timer of the long period DRX is in an active state;
  • the sending unit is further configured to be active in the duration of the long period DRX timer In the state, if the receiving unit correctly receives the MAC PDU sent by the network side, the HARQ ACK is returned to the network side.
  • the embodiment of the invention further discloses a network side device, comprising at least a configuration unit, a first sending unit and a first detecting unit, wherein:
  • a configuration unit configured to configure a short-cycle DRX parameter for the terminal
  • a first sending unit configured to send a medium access control MAC layer user packet data unit PDU to the terminal when the duration timer of the short period discontinuous reception DRX of the terminal is in an active state, and wait for the current duration timing After the timer expires, the MAC PDU is sent again to the terminal at least when the duration timer of any short period DRX is in an active state;
  • a first detecting unit configured to detect, after the first sending unit sends a MAC PDU to the terminal, whether the terminal returns a hybrid automatic repeat request HARQ acknowledgement information ACK, and detects that the terminal is at least two When the duration timer of the short-period DRX returns to the HARQ ACK when it is in the active state, it is determined that the terminal has the discontinuous reception capability when the short-cycle DRX is configured.
  • the device further includes a second sending unit and a second detecting unit, where:
  • a second sending unit configured to send a MAC PDU to the terminal when the duration timer of the long period DRX is in an active state after waiting for the discontinuous reception short period timer to expire, and wait for the current duration timer to expire Transmitting a MAC PDU to the terminal at least when the duration timer of any long-period DRX is in an active state;
  • a second detecting unit configured to detect, after the second sending unit sends a MAC PDU to the terminal, whether the terminal returns a HARQ ACK, and detect that the terminal is timed at least for two long periods of DRX duration
  • the device returns to the HARQ ACK when it is in the active state, it is determined that the terminal has discontinuous reception capability when configured with long-period DRX.
  • the duration of the short period configured by the configuration unit for the terminal is included in 2 to 10 short periods.
  • the duration of the short period configured by the configuration unit for the terminal is 3 short periods.
  • the embodiment of the invention further discloses a computer readable storage medium storing computer executable instructions for performing a combination of any of the above methods.
  • the technical solution of the present application is directed to the short-cycle and long-period DRX situations when the terminal supports DRX, and implements capability detection for whether the terminal has discontinuous reception.
  • FIG. 1 is a schematic structural diagram of a terminal device of the present invention
  • FIG. 2 is a schematic structural diagram of a network side device of the present invention.
  • the embodiment of the invention provides a method for detecting a discontinuous reception capability, which is mainly described from the terminal side, and the method at least includes:
  • the short-period discontinuous reception parameter is configured on the network side, and the short-cycle discontinuous reception parameter is configured at the same time, when the OnDurationTimer of the short-period DRX is in the active state, if the terminal correctly receives the MAC packet data unit (PDU) sent by the network side, Send a hybrid automatic repeat request acknowledgement message (HARQ ACK) to the network side;
  • PDU MAC packet data unit
  • HARQ ACK hybrid automatic repeat request acknowledgement message
  • the terminal After the current OnDurationTimer times out, if the terminal correctly receives the MAC PDU sent by the network side at least when the OnDurationTimer is in the active state, the terminal sends another HARQ ACK to the network side to assist the network side to determine.
  • Terminal is equipped Discontinuous reception capability when short-cycle DRX is placed.
  • the terminal After the foregoing method, after waiting for the drxShortCycleTimer to time out, if the terminal correctly receives the MAC PDU sent by the network when the terminal is in the active state, the terminal sends a HARQ ACK to the network side;
  • the terminal After the current OnDurationTimer times out, at least when the OnDurationTimer of any long period is in the active state, the terminal correctly receives the MAC PDU sent by the network side again, and then sends a HARQ ACK to the network side, thereby assisting the network side to determine that the terminal is configured to be long. Cyclic DRX has discontinuous reception capability.
  • the process of receiving, by the terminal, the MAC PDU sent by the network side includes:
  • the terminal can receive the MAC PDU in the corresponding subframe in this period; similarly, when the OnDurationTimer of the long-period DRX is in the active state, the terminal receives the subframe corresponding to the time.
  • MAC PDU the specific location of the subframe in which the terminal receives the MAC PDU is not limited.
  • the embodiment of the present invention further provides a method for detecting a discontinuous reception capability, which is mainly described from the network side, and the method includes at least the following operations:
  • the network side configures the terminal to continuously receive parameters, and simultaneously configures short-cycle discontinuous reception parameters
  • the network When the OnDurationTimer of the short-period DRX is in an active state, the network sends a MAC PDU to the terminal, and detects whether the terminal returns a HARQ ACK to the network side;
  • the network side After the current OnDurationTimer times out, when at least any short period of OnDurationTimer is in the active state, the network side sends the MAC PDU to the terminal again, and detects whether the terminal returns a HARQ ACK to the network side;
  • the network side detects the HARQ ACK returned by the terminal at least when the OnDurationTimer of the two short-period DRXs is in the active state, it is determined that the terminal has the discontinuous reception capability when the short-cycle DRX is configured.
  • the foregoing method may further detect whether the terminal has the DRX capability in the case that the long-term DRX is configured, that is, the foregoing method further includes:
  • the network After waiting for the drxShortCycleTimer to time out, when the OnDurationTimer of the long-period DRX is in the active state, the network sends a MAC PDU to the terminal, and detects whether the terminal returns a HARQ ACK to the network side;
  • the network side After the current OnDurationTimer expires, when at least any long-period OnDurationTimer is in the active state, the network side sends the MAC PDU to the terminal again, and detects whether the terminal returns a HARQ ACK to the network side;
  • the network side detects the HARQ ACK returned by the terminal respectively during the active state when the OnDurationTimer of the two long-period DRXs is in the active state, it is determined that the terminal has the discontinuous reception capability when the short-cycle DRX is configured.
  • the MAC PDU When the network side sends the MAC PDU, when the OnDurationTimer of the short period DRX of the terminal is in the active state, the MAC PDU is sent in the subframe corresponding to the period of time, when the OnDurationTimer of the long period DRX of the terminal is in the active state, during this period of time A MAC PDU is sent on the corresponding subframe.
  • the specific subframe in which the MAC PDU is transmitted is calculated by the configured short period and long period subframe. It should be noted that, in this embodiment, the method for calculating the subframe position for transmitting the MAC PDU is not limited.
  • the duration of the short period of the network configuration can range from 2-10 short periods. Preferably, it is 3 short cycles.
  • the following describes the detection process of the discontinuous reception capability of the terminal by the network side in the case of the short-cycle and the long-cycle DRX in the preferred solution.
  • the process includes:
  • the network side configures to send a radio resource link reconfiguration message to the terminal, configures a discontinuous reception parameter, and configures a short period at the same time;
  • the terminal After receiving the reconfiguration message, the terminal sends a reconfiguration acknowledgement message to confirm that the discontinuous reception configuration is successful.
  • the network When the OnDurationTimer of the short-period DRX is in an active state, the network sends a MAC PDU to the terminal, and detects whether the terminal returns a HARQ ACK to the network side;
  • the network side When the OnDurationTimer of the short period after the current OnDurationTimer expires is in the active state, the network side sends the MAC PDU to the terminal again, and detects whether the terminal returns a HARQ ACK to the network side.
  • the network After waiting for the drxShortCycleTimer to time out, when the OnDurationTimer of the long-period DRX is in the active state, the network sends a MAC PDU to the terminal, and detects whether the terminal returns a HARQ ACK to the network side;
  • OnDurationTimer is activated when a long period of time after OnDurationTimer times out
  • the network side sends a MAC PDU to the terminal, and detects whether the terminal returns a HARQ ACK to the network side;
  • the terminal If the above four detection points, that is, when the two short-cycle DRX OnDurationTimer is in the active state and the two long-period DRX OnDurationTimer are in the active state, the terminal returns the HARQ ACK, then the terminal test is considered to pass ( That is, the terminal has a discontinuous reception capability of short-period DRX and long-period DRX), otherwise the test is considered to be unsuccessful.
  • the MAC PDU can be sent again after receiving the HARQ ACK returned by the terminal. This greatly improves the system resource utilization.
  • the embodiment of the present invention introduces a terminal device, which can implement the foregoing DRX detection method.
  • the terminal device includes at least the following units.
  • the sending unit returns the HARQ ACK to the network side if it is determined that the receiving unit correctly receives the MAC PDU sent by the network side when the OnDurationTimer of the short period DRX is in the active state.
  • the receiving unit receives the MAC PDU sent by the network side when the OnDurationTimer of the long-period DRX is in an active state;
  • the transmitting unit returns the HARQ ACK to the network side if it is determined that the receiving unit correctly receives the MAC PDU transmitted by the network side when the OnDurationTimer of the long period DRX is in the active state.
  • the present invention further provides a network side device, which can implement the foregoing DRX detection method, and includes at least a configuration unit, a first sending unit, and a first detecting unit.
  • the first sending unit sends a MAC PDU to the terminal when the OnDurationTimer of the short-cycle discontinuous reception DRX of the terminal is in an active state, and waits for the current OnDurationTimer to expire, at least when the OnDurationTimer of the DRX is activated in any short period, to the terminal again.
  • the first detecting unit after the first sending unit sends the MAC PDU to the terminal, the detecting terminal is The HARQ ACK is returned, and when the terminal detects that the OnDurationTimer of the DRX is in the active state for at least two short periods, the HARQ ACK is returned, determining that the terminal has the discontinuous reception capability when the short period DRX is configured.
  • the network side device may further detect whether the terminal has the DRX capability when the long-period DRX is configured.
  • the second sending unit and the second detecting unit are required to be added, where:
  • the second sending unit After waiting for the drxShortCycleTimer to time out, the second sending unit sends a MAC PDU to the terminal when the OnDurationTimer of the long-period DRX is in the active state, and waits for the current OnDurationTimer to expire, at least when the OnDurationTimer of any long-period DRX is in the active state, to the terminal. Send the MAC PDU again;
  • the second detecting unit detects whether the terminal returns a HARQ ACK, and determines that the terminal returns the HARQ ACK when the OnDurationTimer of the two long-period DRXs is in the active state, respectively.
  • the terminal has discontinuous reception capability when configured with long-period DRX.
  • the embodiment of the present invention recommends that the duration of the short period configured by the configuration unit for the terminal is included in 2 to 10 short periods.
  • the duration of the preferably configured short period is 3 short periods.
  • the method for detecting discontinuous reception capability and the terminal and network side device proposed by the embodiments of the present invention relate to the LTE technology in the mobile communication technology.
  • the method of the present invention includes: after the network side configures the short-period DRX parameter for the terminal, if the terminal correctly receives the MAC PDU sent by the network side when the short-cycle DRX duration timer is in the active state, the HARQ ACK is returned to the network side; And at the moment After the duration timer expires, the terminal receives the MAC PDU sent by the network side at least when the duration timer of any short period DRX is in the active state, and then returns the HARQ ACK to the network side again, to determine that the terminal is configured.
  • Non-continuous reception capability with short-cycle DRX is directed to the short-cycle and long-period DRX situations when the terminal supports DRX, and implements capability detection for whether the terminal has discontinuous reception.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé et terminal de détection de capacité de réception discontinue, et dispositif côté réseau, se rapportant à une technologie LTE parmi les technologies de communication mobile. Le procédé selon la présente invention comporte les étapes suivantes: un terminal renvoie un ACK de HARQ à un côté réseau si le terminal reçoit correctement une PDU de MAC envoyée par le côté réseau lorsqu'un temporisateur de durée de cycle DRX court se trouve dans un état actif après que le côté réseau a configuré des paramètres de cycle DRX court pour le terminal; et le terminal renvoie à nouveau un ACK de HARQ au côté réseau si le terminal reçoit une PDU de MAC envoyée à nouveau par le côté réseau à un instant où un quelconque temporisateur de durée de cycle DRX court se trouve dans l'état actif après que le temporisateur à la durée actuelle a expiré, de façon à déterminer que le terminal est doté d'une capacité de réception discontinue lorsqu'un cycle DRX court est configuré pour le terminal. La solution technique de la présente invention vise un cas où un terminal prend en charge la DRX, en particulier où à la fois un cycle DRX court et un cycle DRX long sont configurés pour le terminal, réalisant ainsi une détection du fait que le terminal est doté ou non d'une capacité de réception discontinue.
PCT/CN2015/088779 2015-02-02 2015-09-01 Procédé et terminal de détection de capacité de réception discontinue, et dispositif côté réseau WO2016123971A1 (fr)

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CN201510054342.6A CN105992266B (zh) 2015-02-02 2015-02-02 一种非连续接收能力的检测方法和终端、网络侧设备
CN201510054342.6 2015-02-02

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CN108616999B (zh) * 2017-01-04 2019-09-17 电信科学技术研究院 一种数据传输方法、装置及系统
WO2020237488A1 (fr) * 2019-05-27 2020-12-03 北京小米移动软件有限公司 Procédé et appareil de réception discontinue et dispositif électronique et support d'informations lisible par ordinateur

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