WO2018127216A1 - 一种数据传输方法、装置及*** - Google Patents

一种数据传输方法、装置及*** Download PDF

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Publication number
WO2018127216A1
WO2018127216A1 PCT/CN2018/075302 CN2018075302W WO2018127216A1 WO 2018127216 A1 WO2018127216 A1 WO 2018127216A1 CN 2018075302 W CN2018075302 W CN 2018075302W WO 2018127216 A1 WO2018127216 A1 WO 2018127216A1
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WO
WIPO (PCT)
Prior art keywords
downlink data
data transmission
timer
downlink
network side
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PCT/CN2018/075302
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English (en)
French (fr)
Inventor
谌丽
Original Assignee
电信科学技术研究院
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to US16/475,661 priority Critical patent/US11089619B2/en
Publication of WO2018127216A1 publication Critical patent/WO2018127216A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of data transmission technologies, and in particular, to a data transmission method, apparatus, and system.
  • UE user equipment
  • service types are diversified, the power of the UE is saved, the network resources are saved, and the requirements for various service types coexist.
  • RRC_INACTIVE UE state inactive
  • the UE maintains the core network connection, but there is no air interface connection, that is, there is no data transmission with the specific cell at any time. Connection relationship.
  • the next-generation wireless communication system (NR system or 5G system) supports three RRC (Radio Resource Control) states: idle state (RRC_IDLE), inactive state (RRC_INACTIVE), and connection state (RRC_CONNECTED). They are simply referred to as the idle state, the RRC_INACTIVE state, and the connected state.
  • RRC_IDLE idle state
  • RRC_INACTIVE inactive state
  • RRC_CONNECTED connection state
  • the network side gNB (next generation NodeB, the next generation base station) and the UE store the UE context, but do not establish an air interface connection. If the UE has data to send, it needs to be temporarily initiated. In the prior art, if the UE has a large amount of data to be transmitted, the UE needs to enter the connected state. If the UE has burst small data transmission, the UE needs to be activated each time. For uplink data, the UE may transmit by random access or contention based transmission. For downlink data, the gNB can only notify the UE to receive downlink data and send downlink data to the UE at the moment when the UE receives the notification message.
  • the UE receives the DRX (Discontinuous Reception) in the manner of receiving the notification message.
  • the UE only wakes up at the determined time of the DRX cycle to receive the notification message, but the DRX cycle is usually long. Therefore, the transmission mode of the downlink data is not conducive to the gNB transmitting downlink data to the UE in the RRC_INACTIVE state in time, and the delay of subsequent data transmission may be further caused due to the downlink data transmission delay.
  • the invention provides a data transmission method, device and system, which are used to solve the problem that the gNB cannot transmit downlink data to the UE in the RRC_INACTIVE state in time due to the long DRX period of the UE in the RRC_INACTIVE state, further causing subsequent data transmission.
  • the problem of delay is used to solve the problem that the gNB cannot transmit downlink data to the UE in the RRC_INACTIVE state in time due to the long DRX period of the UE in the RRC_INACTIVE state, further causing subsequent data transmission.
  • the embodiment of the invention discloses a data transmission method, and the method includes:
  • the UE After completing the uplink data transmission in the inactive RRC_INACTIVE state, the UE monitors the downlink data transmission within the determined time period;
  • the discontinuous reception DRX state is entered.
  • the monitoring downlink data transmission during the determined time period includes:
  • the UE After completing the uplink data transmission, the UE enters a continuous receiving state until listening to downlink data transmission; or
  • the UE After completing the uplink data transmission, the UE enters a continuous receiving state, starts the timer T1, and monitors the downlink data transmission within the timing of the timer T1; or
  • the UE After completing the uplink data transmission, the UE starts the timer T2, enters the DRX state within the timing of the timer T2, starts the timer T3 after the timer T2 times out, and the UE enters the continuous receiving state, and at the timing The downlink data transmission is monitored within the timing of the timer T3.
  • the monitoring the downlink data transmission within the determined time period further includes:
  • the downlink data is received by the UE, and the downlink data includes information indicating that the UE continues to perform downlink data transmission monitoring, and the downlink data transmission is monitored again during the determined time period; or
  • the UE receives the downlink data or the downlink scheduling command, starts the timer T4, monitors the downlink data transmission within the timing of the timer T4, and restarts the timer T4 when receiving the new downlink data or the downlink scheduling command.
  • timing duration of the timer T1 is determined in the following manner:
  • the network side configures the UE by using a broadcast message
  • the network side configures the UE by dedicated signaling; or,
  • the uplink data transmission includes:
  • the specific type of service is configured by the network side for the UE by using a broadcast message, or the network side is configured for the UE by using dedicated signaling.
  • the specific uplink data packet is an uplink data packet that needs to be sent by the network side to the corresponding downlink data transmission.
  • the preset time period is configured by the network side for the UE by using a broadcast message
  • the network side is configured for the UE by dedicated signaling; or
  • the UE is active during a specific service transmission and has data transmission.
  • the network message carries the identification information of the service type in the broadcast message or the dedicated signaling, where the identifier information of the service type includes: an application layer identifier, or a radio bearer identifier RB ID. Or logical channel identifier LCID, or flow identifier Flow ID.
  • the method further includes:
  • the UE Sending to the network side, the UE will enter indication information for monitoring downlink data transmission.
  • the receiving completion downlink data includes:
  • Receiving a downlink scheduling command sent by the network side where the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE, receives the downlink data transmission scheduled by the downlink scheduling command, and determines whether the UE ID information carried in the downlink data transmission is the same as its own UE ID information. And if yes, parsing the downlink data content in the downlink data transmission; or
  • Receiving a downlink scheduling command sent by the network side determining whether the C-RNTI of the UE carried in the downlink scheduling command is the same as its own C-RNTI, and if yes, receiving the downlink data transmission scheduled by the downlink scheduling command.
  • the embodiment of the invention discloses a data transmission method, and the method includes:
  • the downlink data is sent to the UE within the determined time period.
  • the sending the downlink data to the UE within the determined time period includes:
  • the downlink data is sent to the UE at any time;
  • the timer T1 is started, and the downlink data is sent to the UE within the timing of the timer T1;
  • the timer T2 is started. After the timer T2 expires, the timer T3 is started, and the downlink data is sent to the UE within the timing of the timer T3.
  • the sending the downlink data to the UE in the determining time period further includes:
  • the network side sends information indicating that the UE continues to perform downlink data transmission monitoring to the UE, and retransmits downlink data to the UE within the determined time period;
  • the network side After transmitting the downlink data or the downlink scheduling command, the network side starts the timer T4, and restarts the timer T4 when transmitting the new downlink data or the downlink scheduling command.
  • timing duration of the timer T1, the timing duration of the timer T2, the timing duration of the timer T3, and the timing duration of the timer T4 are pre-configured by the network side for the UE, or pre-defined by the protocol. .
  • the uplink data includes:
  • the specific type of service is pre-configured for the UE by the network side.
  • the specific uplink data packet is an uplink data packet that needs to be sent by the network side to the corresponding downlink data transmission.
  • the method further includes:
  • the UE will enter indication information for monitoring downlink data transmission.
  • the sending the downlink data to the UE includes:
  • the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE
  • the downlink scheduling data is used to schedule the downlink data transmission to the UE, where the downlink data transmission carries the UE ID information and the downlink data content
  • the embodiment of the invention discloses a data transmission device, and the device comprises:
  • a monitoring module configured to monitor downlink data transmission in a determined time period after the UE completes uplink data transmission in an inactive RRC_INACTIVE state
  • the receiving the dormancy module is configured to enter the discontinuous reception DRX state after the determining the time period expires or receiving the completion of the downlink data.
  • the embodiment of the invention discloses a data transmission device, and the device comprises:
  • a receiving module configured to complete uplink data transmission with a UE in an inactive RRC_INACTIVE state
  • a sending module configured to send downlink data to the UE within a determined time period.
  • the embodiment of the invention discloses a data transmission system, which comprises the above-mentioned data transmission device applied to the terminal and the above-mentioned data transmission device applied to the network side device.
  • the embodiment of the invention discloses a user equipment, and the user equipment includes:
  • a transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
  • a processor for reading a program in the memory performing the following process:
  • the downlink data transmission is monitored within the determined time period
  • the discontinuous reception DRX state is entered.
  • the embodiment of the invention discloses a base station, and the base station comprises:
  • a processor for reading a program in the memory performing the following process:
  • a transceiver for receiving and transmitting data under the control of a processor, performing the following processes:
  • the downlink data is sent to the UE within the determined time period.
  • the embodiment of the invention discloses a computer device, which comprises a memory, a processor and a computer program stored on the memory and operable on the processor, and the processor implements a data transmission method on the UE side when the computer program is executed.
  • the embodiment of the invention discloses a computer device, comprising a memory, a processor and a computer program stored on the memory and operable on the processor, and the method for implementing data transmission on the network side when the processor executes the computer program .
  • the embodiment of the invention discloses a data transmission method, device and system.
  • the method includes: after completing uplink data transmission in an RRC_INACTIVE state, the UE monitors downlink data transmission within a certain time period; when the determined time period expires or After receiving the downlink data, it enters the DRX state. After the UE completes the uplink data transmission, the UE can listen to the downlink data within a certain period of time. After the determined time period expires or the downlink data is received, the DRX state is entered.
  • the gNB can be configured to transmit downlink data to the UE in the RRC_INACTIVE state in time to avoid delay of subsequent data transmission.
  • FIG. 1 is a schematic diagram of a data transmission process according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a data transmission process according to an embodiment of the present invention.
  • FIG. 3 is a structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 4 is a structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 5 is a structural diagram of a data transmission system according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the embodiment of the present invention provides a data transmission method, device and system.
  • FIG. 1 is a schematic diagram of a data transmission process according to an embodiment of the present invention, where the process includes the following steps:
  • Step 101 After completing the uplink data transmission in the RRC_INACTIVE state, the UE monitors the downlink data transmission within the determined time period.
  • Step 102 After the determined time period expires or the downlink data is received, the DRX state is entered.
  • the data transmission method provided in the embodiment of the present invention is applied to the UE, and the UE may perform uplink data transmission with the gNB, and may also receive downlink data sent by the gNB. After completing the uplink data transmission in the RRC_INACTIVE state, the UE may listen to the downlink data transmission within a certain period of time. The UE determines whether the determined time period has timed out, and determines whether the downlink data is received. If the UE determines that the determined time period expires or receives downlink data, the UE enters the DRX state.
  • the UE can listen to the downlink data within a certain period of time. After the determined time period expires or the downlink data is received, the DRX state is entered.
  • the gNB can be configured to transmit downlink data to the UE in the RRC_INACTIVE state in time to avoid delay of subsequent data transmission.
  • the gNB may instruct the UE to continue to monitor the downlink data transmission when transmitting the downlink data. Therefore, on the basis of the foregoing embodiment, if the UE receives the downlink data, the method further includes: before entering the DRX state, the method further includes:
  • the downlink data received by the UE includes information indicating that the UE continues to perform downlink data transmission monitoring, and re-lists downlink data transmission within the determined time period.
  • the UE receives the downlink data sent by the gNB, and if the downlink data includes the information indicating that the UE continues to perform downlink data transmission monitoring, the UE re-lists the downlink data transmission within the determined time period. If the downlink data does not include the gNB indicating that the UE continues to perform downlink data transmission monitoring, the UE enters the DRX state after timeout of the determined time period or after receiving the downlink data.
  • the monitoring downlink data transmission during the determined time period includes:
  • the UE After completing the uplink data transmission, the UE enters a continuous receiving state until listening to downlink data transmission; or
  • the UE After completing the uplink data transmission, the UE enters a continuous receiving state, starts the timer T1, and monitors the downlink data transmission within the timing of the timer T1; or
  • the UE After completing the uplink data transmission, the UE starts the timer T2, enters the DRX state within the timing of the timer T2, starts the timer T3 after the timer T2 times out, and the UE enters the continuous receiving state, and the timer T3
  • the downlink data transmission is monitored within the timing period.
  • the UE after completing the uplink data transmission, the UE enters the continuous receiving state, monitors the downlink data transmission, and receives the downlink data transmission, and enters the DRX state after receiving the downlink data.
  • the UE After completing the uplink data transmission, the UE enters the continuous receiving state, and starts the timer T1 to monitor the downlink data transmission. After the timer T1 times out or receives the downlink data, the UE enters the DRX state.
  • the timing of the timer T1 may be configured by the gNB for each UE by using a broadcast message; or, the gNB may be configured for the UE by using dedicated signaling; or may be pre-defined by a protocol.
  • the UE After completing the uplink data transmission, the UE starts the timer T2, and the UE enters the DRX state during the running of the timer T2. After the timer T2 expires, the UE enters the continuous receiving state, and the timer T3 is started at the same time, and the timer T3 is started. The internal downlink data transmission is monitored, and after the timer T3 times out or receives the downlink data, the DRX state is entered.
  • the timing of the timer T2 corresponds to the time between completion of the uplink transmission and the preparation of the downlink data transmission by the gNB.
  • the downlink data transmission is fixed to the TCP (Transmission Control Protocol) for the uplink transmission data.
  • TCP Transmission Control Protocol
  • ACK Acknowledgement
  • the timing of the timer T2 is an predictable value.
  • the timing of the timer T2 may be configured by the gNB for each UE by using a broadcast message, or pre-defined by a protocol, or the gNB is configured by the dedicated signaling for the UE.
  • the timing duration of the timer T3 may be configured by the gNB for each UE by using a broadcast message, or the gNB is configured for each UE by using a broadcast message, or the gNB is configured for the UE by using dedicated signaling.
  • the timing of the timer T1, the timing of the timer T2, the timing of the timer T3, and the timing of the timer T4 may be the same or different.
  • the timing duration of the timer T2 may be specified by a protocol
  • the timing duration of the timer T3 is configured by the gNB for the UE by dedicated signaling.
  • the monitoring the downlink data transmission within the determined time period further includes:
  • the downlink data includes information indicating that the UE continues to perform downlink data transmission monitoring, and re-listens downlink data transmission in the determined time period;
  • the UE receives the downlink data or the downlink scheduling command, starts the timer T4, monitors the downlink data transmission within the timing of the timer T4, and restarts the timer T4 when receiving the new downlink data or the downlink scheduling command.
  • the UE receives the downlink data, where the downlink data includes information indicating that the UE continues to perform downlink data transmission monitoring, and the determination is performed again. Monitor downlink data transmission during the time period.
  • the downlink data received by the UE may include the gNB indicating that the UE continues to perform downlink data transmission monitoring, and then enters a continuous receiving state, and continuously monitors downlink data transmission until downlink data transmission is received and is not received.
  • the information indicating that the UE continues to perform downlink data transmission monitoring enters a DRX state.
  • the UE enters a continuous receiving state after completing the uplink data transmission, starts the timer T1, and monitors the downlink data transmission within the timing of the timer T1, and includes the gNB in the downlink data received within the timing of the timer T1.
  • the timer T1 is restarted, and the downlink data transmission is monitored again within the timing of the timer T1.
  • the DRX state is entered.
  • the timer T2 is started, and the DRX state is entered within the timing of the timer T2.
  • the timer T3 is started, and the UE enters the continuous receiving state. And monitoring the downlink data transmission within the timing of the timer T3.
  • the downlink data received in the timing of the timer T3 includes the gNB indicating that the UE continues to perform downlink data transmission monitoring, the timer T3 is restarted, and the downlink is monitored again within the timing of the timer T3. data transmission.
  • the timing duration of the restarted timer T3 expires or the downlink data is received, the DRX state is entered.
  • the UE receives the downlink data or the downlink scheduling command, starts the timer T4, and listens for the downlink data transmission within the timing of the timer T4, and receives the new data.
  • the timer T4 is restarted.
  • the corresponding UE listens to the downlink data transmission in the determined time period, and if the UE completes the uplink data transmission and enters the continuous reception state, until the downlink data transmission is monitored, the UE receives the downlink data transmission or the downlink.
  • the timer T4 is started, and after receiving a new downlink data transmission or downlink scheduling command, the timer T4 is restarted, and the timer T4 times out that the UE enters the DRX state.
  • the timer T1 If the corresponding UE completes the uplink data transmission and enters the continuous receiving state, and starts the timer T1, monitors the downlink data transmission, and after receiving the downlink data transmission or the downlink scheduling command, starts the timer T4, and receives a new downlink data transmission or downlink. After the scheduling command is restarted, the timer T4 is restarted. When the timer T4 times out, the UE enters the DRX state, and the timing duration of the timer T4 may be the same as or different from the timing duration of the timer T1.
  • the timer T2 is started, and the DRX state is entered during the running of the timer T2.
  • the UE enters the continuous receiving state, starts the timer T3, and monitors the downlink during the running of the timer T3.
  • the timing duration may be the same as or different from the timing duration of the timer T3.
  • the uplink data transmission may be any uplink data transmission, and may be any uplink data transmission of a specific type of service, and may be a specific uplink data transmission of a specific type of service, or may be in advance. Set the uplink data transmission within the time period.
  • the UE After completing any uplink data transmission in the RRC_INACTIVE state, the UE starts the downlink data transmission monitoring process.
  • the UE After completing any uplink data transmission of the specific service in the RRC_INACTIVE state, the UE starts the downlink data transmission monitoring process.
  • the UE After completing the specific uplink data transmission of the specific service in the RRC_INACTIVE state, the UE starts the downlink data transmission monitoring process.
  • the specific type of service is configured for each UE by using a broadcast message, and the specific type of service of each UE is the same, or the gNB can also be configured for the UE by using dedicated signaling. At this time, the specific types of services of each UE may be the same or different.
  • the service information of the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID (Radio Bear Identification, Radio bearer identification), LC ID (Logical channel identification), or Flow ID (Flow identification).
  • RB ID Radio Bear Identification, Radio bearer identification
  • LC ID Logical channel identification
  • Flow ID Flow identification
  • the network side can not only configure a specific type of service for the UE, but also configure a specific uplink data packet for the specific type of service, where the specific uplink data packet is an uplink data packet that needs to be sent by the network side to the corresponding downlink data transmission. That is, the uplink data packet refers to that the UE determines that there is a data packet corresponding to the downlink data transmission. For example, in the TCP service, after receiving several TCP uplink data transmissions, the UE receives the information of the downlink TCP ACK. The uplink packet before the TCP ACK information is a specific uplink packet.
  • the solution further includes: sending, to the network side, the UE to enter the monitoring downlink data transmission. Instructions.
  • the UE after receiving several TCP uplink data transmissions, the UE receives the information of the downlink TCP ACK. Therefore, when the UE performs the specific uplink data transmission of the specific type of service in the RRC_INACTIVE state, the UE may send the indication information that the UE will enter the monitoring downlink data transmission to receive the downlink data transmission of the gNB.
  • the UE After completing the uplink data transmission in the preset time period, the UE starts the downlink data transmission monitoring process.
  • the preset time period is configured by the network side for each UE by using a broadcast message, or the network side is configured for the UE by using dedicated signaling, or the UE continuously starts downlink data during specific service transmission activation and data transmission.
  • the transmission monitoring process When the network side configures the preset time period for the UE by using the broadcast message, the preset time period of each UE is the same.
  • the preset time period of each UE Can be the same or different.
  • the receiving completion downlink data includes:
  • Receiving a downlink scheduling command sent by the network side where the downlink scheduling command carries a RN_INNACTIVE UE common RNTI (Radio Network Temporary Identity), receives the downlink data transmission scheduled by the downlink scheduling command, and determines the downlink data transmission. Whether the UE ID information is the same as its own UE ID information, and if yes, parsing the downlink data content in the downlink data transmission; or
  • the network side specifically informs the UE to receive the downlink data transmission by using the RAN side notification message (notification), and sends the downlink data to the UE.
  • the RAN (Radio Access Network) notification message may be sent in a RAN-based notification area (RAN-based Notification Area), where the area includes one or more cells, or only It is sent in the cell where the UE determined by the gNB is located.
  • RAN-based Notification Area RAN-based Notification Area
  • the network side specifically is that the gNB is in the cell where the UE is located, and the scheduling command NR-PDCCH scrambled by the special RRC_INACTIVE-RNTI is used to schedule downlink data transmission for the UE, and the MAC PDU (MAC: Media Access Control, media access) for downlink data transmission.
  • the PDU (Protocol Data Unit) includes a MAC layer control signaling MAC CE (Control Element) carrying the RRC_INACTIVE UE ID and a downlink data packet sent to the UE.
  • the UE sends an ARQ (Automatic Repeat Request) feedback at the feedback position corresponding to the downlink data transmission; if the gNB does not receive the ACK feedback, the gNB sends the downlink data in the same manner during the UE listening for the downlink data transmission until the UE Received ACK feedback from the UE or timer expired. If the timer expires, the gNB does not successfully send the downlink data.
  • the gNB notifies the UE to receive the downlink data transmission by using the notification message, and sends the downlink data to the UE, that is, the backhaul to the gNB is notified by the RAN side.
  • the message informs the UE to receive the downlink data transmission and send the downlink data to the UE.
  • the network side is specifically that the gNB is in the cell where the UE is located, and the scheduling command NR-PDCCH that is scrambled by the C-RNTI is used to schedule downlink data transmission for the UE, where the C-RNTI is allocated by the gNB in the connected state before the UE enters the RRC_INACTIVE state. And stored in the UE context of the RRC_INACTIVE UE.
  • the UE sends the ARQ feedback at the feedback position corresponding to the downlink data transmission; if the gNB does not receive the ACK feedback, during the UE listening for the downlink data transmission, the gNB sends the downlink data in the same manner until receiving the ACK feedback or the timer of the UE. time out.
  • the gNB does not successfully send the downlink data.
  • the gNB uses the notification message to notify the UE to receive the downlink data transmission and send the downlink data to the UE, that is, roll back to the gNB through the RAN side notification message.
  • the UE is notified to receive the downlink data transmission, and the downlink data is sent to the UE.
  • the method requires the UE with the gNB to be in the RRC_INACTIVE state to reserve the C-RNTI in the UE connected state in the RNA region, and the C-RNTI is unique under multiple cells of the RNA.
  • FIG. 2 is a schematic diagram of a data transmission process according to an embodiment of the present invention. The process is applied to a network side, and the process includes the following steps:
  • Step 201 Receive uplink data sent by the UE in an inactive RRC_INACTIVE state.
  • Step 202 Send downlink data to the UE within the determined time period.
  • the gNB can send downlink data to the UE within a certain period of time, the downlink data can be transmitted to the UE in the RRC_INACTIVE state in time to avoid delay of subsequent data transmission.
  • the sending the downlink data to the UE within the determined time period includes:
  • the downlink data is sent to the UE at any time;
  • the timer T1 is started, and the downlink data is sent to the UE within the timing of the timer T1;
  • the timer T2 is started. After the timer T2 expires, the timer T3 is started, and the downlink data is sent to the UE within the timing of the timer T3.
  • the sending the downlink data to the UE in the determining time period further includes:
  • the network side sends information indicating that the UE continues to perform downlink data transmission monitoring to the UE, and if the network side has new information indicating that the UE continues to perform downlink data transmission monitoring, retransmitting downlink data to the UE within the determined time period; or,
  • the network side After transmitting the downlink data or the downlink scheduling command, the network side starts the timer T4, and restarts the timer T4 when transmitting the new downlink data or the downlink scheduling command.
  • the timing duration of the timer T1, the timing duration of the timer T2, the timing duration of the timer T3, and the timing duration of the timer T4 are pre-configured by the network side for the UE, or by a protocol, where timing The timing length of the timer T1, the timing duration of the timer T2, the timing duration of the timer T3, and the timing length of the timer T4 are determined to be the same or different.
  • the uplink data includes:
  • the specific type of service is pre-configured for the UE by the network side.
  • the specific uplink data packet is an uplink data packet that needs to be sent by the network side to the corresponding downlink data transmission.
  • the method further includes:
  • the UE will enter indication information for monitoring downlink data transmission.
  • the sending downlink data to the UE includes:
  • the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE
  • the downlink scheduling data is used to schedule the downlink data transmission to the UE, where the downlink data transmission carries the UE ID information and the downlink data content
  • the UE After completing any uplink data transmission in the RRC_INACTIVE state, the UE enters the continuous receiving state, monitors the downlink data transmission until receiving the downlink data transmission, and enters the DRX state after receiving the downlink data.
  • the condition for the UE to initiate the downlink data transmission monitoring process is: after the UE completes any uplink data transmission in the RRC_INACTIVE state, the downlink data transmission monitoring process is started.
  • the manner of determining the time period of monitoring the downlink data is: the UE enters the continuous receiving state after completing the uplink data transmission in the RRC_INACTIVE state, and listens to the downlink data transmission until the downlink data transmission is monitored, and enters the DRX state after receiving the downlink data.
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete any uplink data transmission in the RRC_INACTIVE state and enter the continuous reception state.
  • Step 2 Monitor the downlink data transmission. If the downlink data transmission is monitored, proceed to step 3. If the downlink data transmission is not monitored, the downlink data transmission monitoring is continued.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, continuously monitors the downlink data transmission, and enters the DRX state after receiving the downlink data. or,
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink each time. When the command is scheduled, the timer T4 is restarted, the downlink data transmission is monitored during the running of the timer T4, and the timer T4 times out to enter the DRX state; or
  • Branch 3 If the gNB configures the UE to continuously monitor the downlink data transmission timer T4, and does not instruct the UE to continue to listen to the downlink data transmission in the downlink data transmission, after receiving the downlink data, the UE directly enters the DRX state.
  • Step 1 After receiving the uplink data transmission of the UE, the UE is considered to enter the continuous reception state.
  • Step 2 When there is downlink data to be sent to the UE, the downlink data is sent to the UE at any time.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is that the UE remains in the continuous reception state and subsequently transmits the downlink data to the UE; or
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data to the UE during the running of the timer T4. The timer T4 times out that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state.
  • the gNB can send downlink data to the UE during the running of the timer T4, and it is considered that the timer T4 of the UE is restarted every time the downlink data or the downlink scheduling command is sent, and the timer T4 times out that the UE enters the DRX state, in the UE.
  • the downlink data cannot be sent to the UE during the maintenance of the DRX state; or,
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring downlink data transmission for the UE, and does not indicate that the UE continues to listen for downlink data transmission in the downlink data transmission, the gNB considers that the UE enters the DRX state after receiving the downlink data transmission, and is in the UE. Downlink data cannot be sent to the UE during the maintenance of the DRX state.
  • the UE After completing any uplink data transmission in the RRC_INACTIVE state, the UE enters the continuous receiving state, starts the timer T1, and listens for the downlink data transmission within the timing of the timer T1. When the timer T1 times out or receives the downlink data, Enter the DRX state.
  • the UE monitors the downlink data time period: the UE enters the continuous receiving state after completing the uplink data transmission, and starts the timer T1 to monitor the downlink data transmission, after the timer T1 times out or after receiving the downlink data. , enter the DRX state.
  • the timing duration of the timer T1 is that the gNB is configured for each UE by a broadcast message, or configured for the UE by dedicated signaling; or by a protocol.
  • the condition for the UE to initiate the downlink data transmission monitoring process after the UE sends any uplink data transmission in the RRC_INACTIVE state, the downlink data transmission monitoring process is started.
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete any uplink data transmission in the RRC_INACTIVE state, and start the timer T1.
  • Step 2 During the running of the timer T1, the continuous receiving state is entered, and the downlink data transmission is monitored. If the downlink data transmission is not received, and the timer T1 times out, the DRX state is entered, and if the downlink data transmission is received, step 3 is performed.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, restarts the timer T1, continuously monitors the downlink data transmission, and receives each time, and receives each time.
  • the timer T1 is restarted when the new indication of the downlink data transmission continues to be monitored, and the downlink data transmission is monitored during the running of the timer T1, and the timer T1 times out or enters the DRX state after receiving the downlink data; or
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink each time. When the command is scheduled, the timer T4 is restarted, and the downlink data transmission is monitored during the running of the timer T4, and the timer T4 times out to enter the DRX state;
  • the timer T4 in the above branch 2 may be the same as the timer T1, in which case the branch 1 and the branch 2 may be merged; or,
  • Branch 3 If the gNB has neither configured the timer T4 for continuously monitoring the downlink data transmission for the UE, nor indicates that the UE continues to monitor the downlink data transmission in the downlink data transmission, the UE directly enters the DRX state after receiving the downlink data.
  • Step 1 Receive the uplink data that is completed by the UE, and the gNB considers that the UE enters the continuous receiving state, and starts the timer T1.
  • Step 2 During the running of the timer T1, when downlink data needs to be sent to the UE, the downlink data is sent to the UE, and after the downlink data transmission is completed, the third step is performed.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is restarted by the timer T1 after each transmission continues to monitor the indication information of the downlink data transmission, and the UE is considered to be listening to the downlink data transmission during the running of the timer T1, and may send the downlink data to the UE during this period, the timer T1 Timeout considers that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state; or
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4. The timer T4 times out that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state;
  • the timer T4 in the above branch may be the same as the timer T1, and the branch 1 and the branch 2 may be merged at this time.
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring downlink data transmission for the UE, and does not indicate that the UE continues to listen for downlink data transmission in the downlink data transmission, the gNB considers that the UE enters the DRX state after receiving the downlink data, in the UE. Downlink data cannot be sent to the UE during the maintenance of the DRX state.
  • the UE After completing any uplink data transmission in the RRC_INACTIVE state, the UE starts the timer T2, enters the DRX state within the timing of the timer T2, enters the continuous reception state after the timer T2 times out, and is at the timing of the timer T3.
  • the downlink data transmission is monitored within the duration, and when the timer T3 times out or receives the downlink data, the DRX state is entered.
  • the manner in which the UE monitors the downlink data time period includes: after completing the uplink data transmission, the UE starts the timer T2, enters the DRX state during the running of the timer T2, and enters the continuous receiving state after the timer T2 expires. At the same time, the timer T3 is started, and the downlink data transmission is monitored during the running of the timer T3. After the timer T3 expires or the downlink data is received, the DRX state is entered.
  • the timing duration of the timer T2 and the timing duration of the timer T3 may be configured by the gNB for each UE by using a broadcast message; or, the gNB is configured for the UE by dedicated signaling; or pre-defined by a protocol.
  • the timing duration of the timer T2 and the timing duration of the timer T3 are the same or different.
  • the condition for the UE to initiate the downlink data transmission monitoring process is: after the UE sends any uplink data transmission in the RRC_INACTIVE state, the downlink data transmission monitoring process is started.
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete any uplink data transmission in the RRC_INACTIVE state, and start the timer T2. During the start of the timer T2, the UE does not perform downlink data transmission monitoring.
  • Step 2 When the UE recognizes that the timer T2 times out, the UE starts the timer T3, and during the running of the timer T3, enters the continuous receiving state to monitor the downlink data transmission. If the downlink data transmission is not received, and the timer T3 times out, the DRX state is entered, and if the downlink data transmission is received, step 3 is performed.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continuation of the downlink data transmission sent by the gNB, restarts the timer T3, continuously monitors the downlink data transmission, and receives the downlink data every time.
  • the timer T3 is restarted when the new indication of the downlink data transmission continues to be monitored, and the downlink data transmission is monitored during the running of the timer T3, and the timer T3 times out or enters the DRX state after receiving the downlink data; or
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink scheduling each time. The timer T4 is restarted during the command, and the downlink data transmission is monitored during the running of the timer T4. The timer T4 times out to enter the DRX state; the timer T4 in the branch 2 can be the same as the timer T3, and the branch 1 and the branch 2 can be merged. or,
  • Branch 3 If the gNB has neither configured the timer T4 for continuously monitoring the downlink data transmission for the UE, nor indicates that the UE continues to monitor the downlink data transmission in the downlink data transmission, the UE directly enters the DRX state after receiving the downlink data.
  • Step 1 Receive uplink data that is completed by the UE, prepare to send downlink data to the UE, and start timer T2.
  • Step 2 When the gNB recognizes that the timer T2 has timed out, the timer T3 is started. When the downlink data needs to be sent to the UE during the running of the timer T3, the downlink data is sent to the UE, and step 3 is performed, or after the timer T3 expires. The UE is considered to enter the DRX state.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuation monitoring to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is restarted by the timer T3 after each transmission continues to monitor the indication information of the downlink data transmission, and the UE is considered to be listening to the downlink data transmission during the running of the timer T3, and may send the downlink data to the UE during this period, the timer T1
  • the timeout considers that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state; or
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4.
  • the T4 timeout considers that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state;
  • the timer T4 in the above branch may be the same as the timer T3, in which case the branch 1 and the branch 2 may be merged, or,
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring downlink data transmission for the UE, and does not indicate that the UE continues to listen for downlink data transmission in the downlink data transmission, the gNB considers that the UE enters the DRX state after receiving the downlink data, in the UE. Downlink data cannot be sent to the UE during the maintenance of the DRX state.
  • the UE After completing any uplink data transmission of a specific type of service in the RRC_INACTIVE state, the UE enters a continuous receiving state, monitors downlink data transmission, and receives downlink data transmission, and enters the DRX state after receiving the downlink data.
  • the manner in which the UE monitors the downlink data time period includes: after completing the uplink data transmission, the UE enters the continuous receiving state, monitors the downlink data transmission, and receives the downlink data transmission, and enters the DRX after receiving the downlink data. status.
  • the condition for the UE to initiate the downlink data transmission monitoring process is that the UE initiates downlink data transmission monitoring after transmitting any uplink data transmission of the specific service in the RRC_INACTIVE state.
  • the specific type of service may be that the gNB is configured for each UE by using a broadcast message; or the gNB may be configured for the UE by dedicated signaling.
  • the information about the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID, or an LCID, or a Flow ID. .
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete any uplink data transmission of a specific type of service in the RRC_INACTIVE state, enter the continuous receiving state, and listen to the downlink data transmission, perform step 2; or the service type of the uplink data sent by the UE in the RRC_INACTIVE state does not allow the UE to listen. After the downlink data transmission, the UE directly enters the DRX state after transmitting the uplink data, and does not perform step 2.
  • Step 2 The UE receives the downlink data transmission, and performs step 3; otherwise, the downlink data monitoring is continued.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, continuously monitors the downlink data transmission, and enters the DRX state after the downlink data transmission and transmission is completed. ;or,
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink scheduling each time. The timer T4 is restarted during the command, and the downlink data transmission is monitored during the running of the timer T4, and the timer T4 times out to enter the DRX state; or
  • Branch 3 If the gNB configures the UE to continuously monitor the downlink data transmission timer T4, and does not instruct the UE to continue to listen to the downlink data transmission in the downlink data transmission, after receiving the downlink data, the UE directly enters the DRX state.
  • Step 1 receiving the uplink data of the UE transmission, and determining whether the service to which the uplink data belongs is a specific service type that allows the UE to listen to the downlink data transmission. If yes, the UE is considered to enter the continuous reception state, and step 2 is performed; otherwise, The UR enters the DRX state and does not perform step two.
  • Step 2 When there is downlink data to be sent to the UE, the downlink data is sent to the UE at any time.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is that the UE is kept in the continuous receiving state, and subsequently sends the downlink data to the UE; or
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data to the UE during the running of the timer T4. The timer T4 times out that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state.
  • the gNB can send downlink data to the UE during the T4 operation, and consider that the UE's timer T4 is restarted each time the downlink data or the downlink scheduling command is sent, the timer T4 times out that the UE enters the DRX state, and the UE maintains the DRX state. Cannot send downlink data to the UE during the period; or,
  • Branch 3 If the gNB has neither configured the timer T4 for continuously monitoring the downlink data transmission for the UE, nor indicates that the UE continues to listen to the downlink data transmission in the downlink data transmission, it is considered that the UE enters the DRX state after receiving the downlink data, and maintains the DRX in the UE. Downstream data cannot be sent to the UE during the status.
  • the UE After completing any uplink data transmission of a specific type of service in the RRC_INACTIVE state, the UE enters a continuous receiving state, starts a timer T1, and listens for downlink data transmission within a timer duration of the timer T1, when the timer T1 times out or receives After completing the downlink data, enter the DRX state.
  • the manner in which the UE monitors the downlink data time period includes: after the UE completes the uplink data transmission, the UE enters the continuous receiving state, and starts the timer T1 to monitor the downlink data transmission, after the timer T1 times out or after receiving the downlink data. , enter the DRX state.
  • the timing duration of the timer T1 may be configured by the gNB for each UE by using a broadcast message; or, the gNB is configured for the UE by dedicated signaling; or pre-defined by a protocol.
  • the condition for the UE to initiate the downlink data transmission monitoring process is that the UE initiates downlink data transmission monitoring after transmitting any uplink data transmission of the specific service in the RRC_INACTIVE state.
  • the specific type of service may be configured by the gNB for each UE by using a broadcast message, or may be configured by the gNB for the UE by using dedicated signaling.
  • the information about the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID, or an LCID, or a Flow ID. .
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete any uplink data transmission of a specific type of service in the RRC_INACTIVE state, start the timer T1, and perform the second step; or the service type of the uplink data sent by the UE in the RRC_INACTIVE state does not allow the UE to monitor the downlink data transmission, After transmitting the uplink data, the UE directly enters the DRX state, and does not perform step 2.
  • Step 2 During the running of the timer T1, the continuous receiving state is entered, and the downlink data transmission is monitored. If the downlink data transmission is not received, and the timer T1 times out, the DRX state is entered, and if the downlink data transmission is received, step 3 is performed.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, restarts the timer T1, continuously monitors the downlink data transmission, and receives each time, and receives each time.
  • the timer T1 is restarted when the new indication of the downlink data transmission continues to be monitored, and the downlink data transmission is monitored during the running of the timer T1, and the timer T1 times out or enters the DRX state after receiving the downlink data; or
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink each time. The timer T4 is restarted when the command is scheduled, the downlink data transmission is monitored during the running of the timer T4, and the timer T4 times out to enter the DRX state;
  • the timer T4 in the above branch 2 may be the same as the timer T1, in which case the branch 1 and the branch 2 may be merged; or,
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, nor does it indicate that the UE continues to listen to the downlink data transmission in the downlink data transmission. After receiving the downlink data, the UE directly enters the DRX state.
  • Step 1 Receive the uplink data of the UE to be transmitted, and determine whether the service to which the uplink data belongs is a specific service type that allows the UE to listen to the downlink data transmission. If yes, start the timer T1 and consider that the UE enters the continuous receiving state. Second, otherwise, the UR is considered to enter the DRX state, and step 2 is not performed.
  • Step 2 During the running of the timer T1, when the downlink data needs to be sent to the UE, the downlink data is sent to the UE. After the downlink data transmission is completed, the step 3 is performed, or after the timer T1 times out, the UE is considered to enter the DRX state.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is restarted by the timer T1 after each transmission continues to monitor the indication information of the downlink data transmission, and the UE is considered to be listening to the downlink data transmission during the running of the timer T1, and may send the downlink data to the UE during this period, the timer T1 Timeout considers that the UE enters the DRX state and cannot send downlink data to the UE; or,
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4.
  • the T4 times out that the UE enters the DRX state and cannot send downlink data to the UE; the timer T4 in the above branch 2 can be the same as the timer T1, and the branch 1 and the branch 2 can be merged, or
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring downlink data transmission for the UE, and does not indicate that the UE continues to listen for downlink data transmission in the downlink data transmission, the gNB considers that the UE enters the DRX state after receiving the downlink data, in the UE. Downlink data cannot be sent to the UE during the maintenance of the DRX state.
  • the UE After completing any uplink data transmission of a specific type of service in the RRC_INACTIVE state, the UE starts the timer T2, enters the DRX state within the timing of the timer T2, and enters the continuous receiving state after the timer T2 times out, and The downlink data transmission is monitored within the timing of the timer T3.
  • the timer T3 expires or the downlink data is received, the DRX state is entered.
  • the manner in which the UE monitors the downlink data time period includes: after completing the uplink data transmission, the UE starts the timer T2, enters the DRX state during the running of the timer T2, and the UE enters the continuous receiving state after the timer T2 expires.
  • the timer T3 is started, and the downlink data transmission is monitored during the running of the timer T3.
  • the DRX state is entered.
  • the timing duration of the timer T2, the timing duration of the timer T3, and the timing duration of the timer T4 may be configured by the gNB for each UE by using a broadcast message, or the gNB is configured for the UE by using dedicated signaling. Or, pre-specified by agreement.
  • the timing duration of the timer T2 and the timing duration of the timer T3 are the same or different.
  • the condition for the UE to initiate the downlink data transmission monitoring process is that the UE initiates downlink data transmission monitoring after transmitting any uplink data transmission of the specific service in the RRC_INACTIVE state.
  • the specific type of service may be configured by the gNB for each UE by using a broadcast message, or may be configured by the gNB for the UE by using dedicated signaling.
  • the information about the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID, or an LCID, or a Flow ID. .
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete any uplink data transmission of a specific type of service in the RRC_INACTIVE state, start a timer T2, during the start of the timer T2, the UE does not monitor downlink data transmission, perform step 2; or the UE is in the RRC_INACTIVE state. If the service type of the uplink data sent by the UE does not allow the UE to listen to the downlink data transmission, the UE directly enters the DRX state after transmitting the uplink data, and does not perform step 2.
  • Step 2 When the UE recognizes that the timer T2 times out, the UE starts the timer T3. During the running of the timer T3, the UE enters the continuous receiving state to monitor the downlink data transmission. If the downlink data transmission is not received, and the timer T3 times out, then Enter the DRX state. If the downlink data transmission is received, go to step 3.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continuation of the downlink data transmission sent by the gNB, restarts the timer T3, continuously monitors the downlink data transmission, and receives the downlink data every time.
  • the timer T3 is restarted when the new indication of the downlink data transmission continues to be monitored, and the downlink data transmission is monitored during the running of the timer T3, and the timer T3 times out or enters the DRX state after receiving the downlink data; or
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink scheduling each time. The timer T4 is restarted during the command, and the downlink data transmission is monitored during the running of the timer T4. The timer T4 times out to enter the DRX state; the timer T4 in the branch 2 can be the same as the timer T3, and the branch 1 and the branch 2 can be merged. or,
  • Branch 3 If the gNB has neither configured the timer T4 for continuously monitoring the downlink data transmission for the UE, nor indicates that the UE continues to monitor the downlink data transmission in the downlink data transmission, the UE directly enters the DRX state after receiving the downlink data.
  • Step 1 Receive the uplink data that is completed by the UE, determine whether the service to which the uplink data belongs is a specific service type that allows the UE to listen for downlink data transmission, and if yes, prepare to send downlink data to the UE, and start timer T2.
  • Step 2 When the gNB recognizes that the timer T2 has timed out, the timer T3 is started. During the running of the timer T3, when the downlink data needs to be sent to the UE, the downlink data is sent to the UE, and after the downlink data transmission is completed, the third step is performed. Or the UE is considered to enter the DRX state after the timer T3 times out.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is restarted by the timer T3 after each transmission continues to monitor the indication information of the downlink data transmission, and the UE is considered to be listening to the downlink data transmission during the running of the timer T3, and may send the downlink data to the UE during this period, the timer T3 Timeout considers that the UE enters the DRX state and cannot send downlink data to the UE; or,
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4.
  • the T4 times out that the UE enters the DRX state and cannot send downlink data to the UE; the timer T4 in the above branch may be the same as the timer T3, and the branch 1 and the branch 2 may be merged, or
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring downlink data transmission for the UE, and does not indicate that the UE continues to listen for downlink data transmission in the downlink data transmission, the gNB considers that the UE enters the DRX state after receiving the downlink data transmission, in the UE. Downlink data cannot be sent to the UE during the maintenance of the DRX state.
  • Embodiments for initiating downlink data transmission monitoring after the UE performs specific uplink data transmission of a specific type of service in the RRC_INACTIVE state in the present invention are described again.
  • the UE After completing the specific uplink data transmission of the specific type of service in the RRC_INACTIVE state, the UE enters the continuous receiving state, monitors the downlink data transmission, and receives the downlink data transmission, and enters the DRX state after receiving the downlink data.
  • the manner in which the UE monitors the downlink data time period includes: after completing the uplink data transmission, the UE enters the continuous receiving state, monitors the downlink data transmission, and receives the downlink data transmission, and enters the DRX after receiving the downlink data. status.
  • the condition for the UE to initiate the downlink data transmission monitoring process is that the UE initiates downlink data transmission monitoring after transmitting the specific uplink data transmission of the specific service in the RRC_INACTIVE state.
  • the specific type of service may be configured by the gNB for each UE by using a broadcast message, or may be configured by the gNB for the UE by using dedicated signaling.
  • the information about the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID, or an LCID, or a Flow ID. .
  • the specific uplink data packet is an uplink data packet that needs to be sent by the gNB to the corresponding downlink data transmission. That is, the uplink data packet refers to a data packet that the UE determines to have a corresponding downlink data transmission, for example, the UE receives the ACK of the downlink TCP after determining to send several TCP uplink data transmissions.
  • the uplink packet before the TCP ACK information is a specific uplink packet.
  • the UE may send the indication information that the UE will enter the monitoring downlink data transmission to the gNB.
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete the specific uplink data transmission of the specific type of service in the RRC_INACTIVE state, enter the continuous receiving state, and listen to the downlink data transmission, and perform step 2; or the uplink data packet sent by the UE in the RRC_INACTIVE state does not allow the UE to listen to the downlink data.
  • the UE After the transmission, the UE directly enters the DRX state after transmitting the uplink data, and does not perform step 2.
  • Step 2 The UE receives the downlink data transmission, and performs step 3, otherwise the downlink data monitoring continues.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, continuously monitors the downlink data transmission, and enters the DRX state after the downlink data transmission and transmission is completed. ;or,
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink scheduling each time. The timer T4 is restarted during the command, and the downlink data transmission is monitored during the running of the timer T4, and the timer T4 times out to enter the DRX state; or
  • Branch 3 If the gNB configures the UE to continuously monitor the downlink data transmission timer T4, and does not instruct the UE to continue to listen to the downlink data transmission in the downlink data transmission, after receiving the downlink data, the UE directly enters the DRX state.
  • Step 1 receiving the uplink data that is completed by the UE, determining whether the service to which the uplink data belongs is a specific service type that allows the UE to monitor downlink data transmission, and if yes, determining the information according to an implicit manner, such as indication information or service characteristics sent by the UE. Whether the data packet of the service is a specific data packet of a specific service type that allows the UE to listen to the downlink data transmission. If yes, the UE is considered to enter the continuous reception state, and the second step is performed. Otherwise, the UR is considered to enter the DRX state, and step 2 is not performed.
  • Step 2 When there is downlink data to be sent to the UE, the downlink data is sent to the UE at any time.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is that the UE maintains the continuous reception state and subsequently sends the downlink data to the UE; or
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4.
  • the T4 timeout considers that the UE enters the DRX state, and cannot send downlink data to the UE during the UE maintaining the DRX state.
  • the gNB can send downlink data to the UE during the T4 operation, and it is considered that the timer T4 is restarted each time the downlink data or the downlink scheduling command is sent.
  • the timer T4 times out that the UE enters the DRX state, and cannot be during the UE maintaining the DRX state. Send downlink data to the UE; or,
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, nor does it indicate that the UE continues to listen to the downlink data transmission in the downlink data transmission, it is considered that the UE enters the DRX state after receiving the downlink data, and maintains the DRX in the UE. Downstream data cannot be sent to the UE during the status.
  • the UE After completing the specific uplink data transmission of the specific type of service in the RRC_INACTIVE state, the UE enters the continuous receiving state, starts the timer T1, and listens for the downlink data transmission within the timing of the timer T1, when the timer T1 times out or receives. After completing the downlink data, enter the DRX state.
  • the manner in which the UE monitors the downlink data time period includes: after the UE completes the uplink data transmission, the UE enters the continuous receiving state, and starts the timer T1 to monitor the downlink data transmission, after the timer T1 times out or after receiving the downlink data. , enter the DRX state.
  • the timing of the timer T1 may be configured by the gNB for each UE by using a broadcast message, or the gNB may be configured by the dedicated signaling for the UE, or may be pre-defined by a protocol.
  • the condition for the UE to initiate the downlink data transmission monitoring process is that the UE initiates downlink data transmission monitoring after transmitting the specific uplink data transmission of the specific service in the RRC_INACTIVE state.
  • the specific type of service may be configured by the gNB for each UE by using a broadcast message, or may be configured by the gNB for the UE by using dedicated signaling.
  • the information about the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID, or an LCID, or a Flow ID. .
  • the specific uplink data packet is an uplink data packet that needs to be sent by the gNB to the corresponding downlink data transmission. That is, the uplink data packet refers to that the UE determines that there is a data packet corresponding to the downlink data transmission, for example, the UE receives the downlink TCP ACK after determining to send several TCP uplink data transmissions.
  • the uplink packet before the TCP ACK information is a specific uplink packet.
  • the UE may send the indication information that the UE will enter the monitoring downlink data transmission to the gNB.
  • the operation performed by the UE includes the following steps:
  • Step 1 Complete the specific uplink data transmission of the specific type of service in the RRC_INACTIVE state, start the timer T1, and perform the second step; or the uplink data packet sent by the UE in the RRC_INACTIVE state does not allow the UE to monitor the downlink data transmission, then the UE After the uplink data is sent, the DRX state is directly entered, and step 2 is not performed.
  • the UE sends the last specific uplink data packet the UE sends, to the gNB, indication information that the UE will enter the monitoring downlink data transmission.
  • Step 2 During the running of the timer T1, the continuous receiving state is entered, and the downlink data transmission is monitored. If the downlink data transmission is not received, and the timer T1 times out, the DRX state is entered, and if the downlink data transmission is received, step 3 is performed.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, restarts the timer T1, continuously monitors the downlink data transmission, and receives each time, and receives each time.
  • the timer T1 is restarted when the new indication of the downlink data transmission continues to be monitored, and the downlink data transmission is monitored during the running of the timer T1, and the timer T1 times out or enters the DRX state after receiving the downlink data; or
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink scheduling each time. The timer T4 is restarted during the command, and the downlink data transmission is monitored during the running of the timer T4. The timer T4 times out to enter the DRX state; the timer T4 in the branch 2 can be the same as the timer T1, and the branch 1 and the branch 2 can be merged. or,
  • Branch 3 If the gNB has neither configured the timer T4 for continuously monitoring the downlink data transmission for the UE, nor indicates that the UE continues to monitor the downlink data transmission in the downlink data transmission, the UE directly enters the DRX state after receiving the downlink data.
  • Step 1 receiving the uplink data that is completed by the UE, determining whether the service to which the uplink data belongs is a specific service type that allows the UE to monitor downlink data transmission, and if yes, determining the information according to an implicit manner, such as indication information or service characteristics sent by the UE. Whether the data packet of the service is a specific data packet of a specific service type that allows the UE to listen to the downlink data transmission. If yes, the timer T1 is started, and the UE is considered to enter the continuous receiving state, and step 2 is performed. Otherwise, the UR is considered to enter the DRX state, and Go to step two.
  • Step 2 During the running of the timer T1, when the downlink data needs to be sent to the UE, the downlink data is sent to the UE. After the downlink data transmission is completed, the step 3 is performed, or after the timer T1 times out, the UE is considered to enter the DRX state. The downlink data cannot be transmitted to the UE during the UE maintaining the DRX state.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is restarted by the timer T1 after each transmission continues to monitor the indication information of the downlink data transmission, and the UE is considered to be listening to the downlink data transmission during the running of the timer T1, and may send the downlink data to the UE during this period, the timer T1 Timeout considers that the UE enters the DRX state and cannot send downlink data to the UE; or,
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4.
  • the T4 times out that the UE enters the DRX state and cannot send downlink data to the UE; the timer T4 in the above branch 2 can be the same as the timer T1, and the branch 1 and the branch 2 can be merged, or
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, and does not indicate that the UE continues to listen to the downlink data transmission in the downlink data transmission, it is considered that the UE enters the DRX state after receiving the downlink data, and maintains in the UE. Downstream data cannot be sent to the UE during the DRX state.
  • the UE After completing the specific uplink packet transmission of the specific type of service in the RRC_INACTIVE state, the UE starts the timer T2, enters the DRX state within the timing of the timer T2, and enters the continuous receiving state after the timer T2 expires, and The downlink data transmission is monitored within the timing of the timer T3.
  • the timer T3 expires or the downlink data is received, the DRX state is entered.
  • the manner in which the UE monitors the downlink data time period includes: after completing the uplink data transmission, the UE starts the timer T2, and enters the DRX state during the timer T2, that is, the timer T2, and the timer T2. After the timeout period, the UE enters the continuous receiving state, starts the timer T3 at the same time, monitors the downlink data transmission during the running of the timer T3, and enters the DRX state after the timer T3 times out or receives the downlink data.
  • the timing duration of the timer T2 and the timer T3 may be configured by the gNB for each UE by using a broadcast message; or, the gNB is configured for the UE by using dedicated signaling; or pre-defined by a protocol.
  • the timing duration of the timer T1, the timing duration of the timer T2, and the timing duration of the timer T3 are the same or different.
  • the condition for the UE to initiate the downlink data transmission monitoring process is that the UE initiates downlink data transmission monitoring after transmitting the specific uplink data transmission of the specific service in the RRC_INACTIVE state.
  • the specific type of service may be configured by the gNB for each UE by using a broadcast message, or may be configured by the gNB for the UE by using dedicated signaling.
  • the information about the service type is included in the broadcast message or the dedicated signaling, and the identifier information of the service type includes: an application layer identifier, or an RB ID, or an LCID, or a Flow ID. .
  • the specific uplink data packet is an uplink data packet that needs to be sent by the gNB to the corresponding downlink data transmission. That is, the uplink data packet refers to a data packet that the UE determines to subsequently have a corresponding downlink data transmission, such as information that receives a downlink TCP ACK after determining to send several TCP uplink data transmissions.
  • the uplink packet before the TCP ACK information is a specific uplink packet.
  • the UE may send the indication information that the UE will enter the monitoring downlink data transmission to the gNB.
  • the operation performed by the UE includes the following steps:
  • Step 1 complete the specific uplink data transmission of the specific type of service in the RRC_INACTIVE state, start the timer T2, during the operation of the timer T2, the UE does not monitor the downlink data transmission, perform step 2; or the UE sends in the RRC_INACTIVE state.
  • the uplink data packet does not allow the UE to listen to the downlink data transmission, and the UE directly enters the DRX state after transmitting the uplink data, and does not perform step 2.
  • Step 2 When the UE recognizes that the timer T2 times out, the UE starts the timer T3, and during the running of the timer T3, enters the continuous receiving state to monitor the downlink data transmission. If the downlink data transmission is not received, and the timer T3 times out, the DRX state is entered, and if the downlink data transmission is received, step 3 is performed.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the gNB does not configure the timer T4 for continuously monitoring the downlink data transmission for the UE, the UE receives the indication information of the continual monitoring downlink data transmission sent by the gNB, restarts the timer T3, continuously monitors the downlink data transmission, and receives each time, and receives each time.
  • the timer T3 is restarted when the new indication of the downlink data transmission continues to be monitored, and the downlink data transmission is monitored during the running of the timer T3, and the timer T3 times out or enters the DRX state after receiving the downlink data; or
  • Branch 2 If the gNB is configured with a timer T4 for continuously monitoring downlink data transmission, the UE starts the timer T4 when receiving the downlink data transmission or the downlink scheduling command, and receives a new downlink data transmission or downlink scheduling each time. The timer T4 is restarted during the command, and the downlink data transmission is monitored during the running of the timer T4. The timer T4 times out to enter the DRX state; the timer T4 in the branch 2 can be the same as the timer T3, and the branch 1 and the branch 2 can be merged. or,
  • Branch 3 If the gNB has neither configured the timer T4 for continuously monitoring the downlink data transmission for the UE, nor indicates that the UE continues to monitor the downlink data transmission in the downlink data transmission, the UE directly enters the DRX state after receiving the downlink data.
  • Step 1 receiving the uplink data that is completed by the UE, determining whether the service to which the uplink data belongs is a specific service type that allows the UE to monitor downlink data transmission, and if yes, determining the information according to an implicit manner, such as indication information or service characteristics sent by the UE. Whether the data packet of the service is a specific data packet of a specific service type that allows the UE to listen for downlink data transmission, and if so, prepares to send downlink data to the UE, and starts timer T2.
  • Step 2 When the gNB recognizes that the timer T2 has timed out, the timer T3 is started. During the running of the timer T3, when the downlink data needs to be sent to the UE, the downlink data is sent to the UE, and after the downlink data transmission is completed, the third step is performed. Or the UE is considered to enter the DRX state after the timer T3 times out. The downlink data cannot be transmitted to the UE during the UE maintaining the DRX state.
  • Step three includes the following side-by-side branches:
  • Branch 1 If the timer T4 for continuously monitoring the downlink data transmission is not configured for the UE, but the function that the gNB instructs the UE to continuously monitor the downlink data transmission in the downlink data transmission is started, the gNB can send the continuous listening to the UE in the downlink data transmission.
  • the indication information of the downlink data transmission is restarted by the timer T3 after each transmission continues to monitor the indication information of the downlink data transmission, and the UE is considered to be listening to the downlink data transmission during the running of the timer T3, and may send the downlink data to the UE during this period, the timer T3 Timeout considers that the UE enters the DRX state and cannot send downlink data to the UE; or,
  • Branch 2 If the gNB is configured with the timer T4 for continuously monitoring the downlink data transmission, the timer T4 is started or restarted each time the downlink data or the downlink scheduling command is sent, and the gNB can send the downlink data for the UE during the running of the timer T4.
  • the T4 times out that the UE enters the DRX state and cannot send downlink data to the UE; the timer T4 in the above branch may be the same as the timer T3, and the branch 1 and the branch 2 may be merged, or
  • Branch 3 If the gNB does not configure the timer T4 for continuously monitoring downlink data transmission for the UE, nor does it indicate that the UE continues to listen for downlink data transmission in the downlink data transmission, the gNB considers that the UE enters the DRX state after receiving the downlink data, in the UE. Downlink data cannot be sent to the UE during the maintenance of the DRX state.
  • the UE receives the downlink information specifically for receiving the downlink UE of the paging UE sent by the gNB, and receives the downlink data sent together with the notification message.
  • the operation performed by the UE includes the following steps:
  • Step 1 The UE receives the notification message, and the notification message carries the RRC_INACTIVE UE ID, and notifies the UE to receive the downlink data.
  • Step 2 The UE sends a feedback message to the gNB.
  • the feedback message is specifically a random access request preamble or an ACK feedback corresponding to the physical resource location and the corresponding feedback sequence of the notification message.
  • Step 3 The UE receives the downlink data transmission sent with the notification message or corresponding to the resource location after the notification message.
  • Step 4 The UE sends a feedback message to the gNB, where the feedback message is specifically a random access request preamble or an ACK feedback corresponding to the physical resource location and the corresponding feedback sequence of the notification message.
  • Step 1 The gNB sends a notification message (notification) to the UE in the cell in which the UE last transmits the uplink transmission or in the location cell that the UE finally feeds.
  • the notification message carries the RRC_INACTIVE UE ID, and the UE is notified to receive the downlink data transmission.
  • Step 2 (Optional): receiving a feedback message sent by the UE to the gNB, where the feedback message is specifically a random access request preamble or an ACK feedback corresponding to the physical resource location and the corresponding feedback sequence of the notification message.
  • Step 3 The gNB sends downlink data to the UE, specifically, sending it together with the notification message, or sending the corresponding resource location after the notification message.
  • Step 4 (Optional): receiving the feedback message sent by the UE, where the feedback message is specifically a random access request preamble or an ACK feedback corresponding to the physical resource location and the corresponding feedback sequence of the notification message.
  • Step 5 If the feedback message sent by the UE is not received, or the gNB adopts a fixed number of transmission times, return to step 1 and continue to send downlink data to the UE until receiving the feedback message sent by the UE, confirming that the downlink data transmission is successful, or After confirming that the UE enters the DRX state, or reaches the maximum number of transmissions, the downlink data is no longer sent to the UE.
  • the UE receives the downlink data, and the downlink scheduling command is sent by the receiving gNB.
  • the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE, receives the downlink data transmission scheduled by the downlink scheduling command, and determines whether the UE ID information carried in the downlink data transmission is The UE ID information of the downlink data is the same, and if so, the downlink data content in the downlink data transmission is parsed.
  • the operation performed by the UE includes the following steps:
  • Step 1 The UE receives a downlink scheduling command (Physical Downlink Control Channel, PDCCH) (NR-PDCCH), where the scheduling command carries a common RNTI for all RRC_INACTIVE UEs, and the UE receives downlink data transmission according to the scheduling command. And parsing a protocol data unit (MAC PDU), the MAC PDU includes a MAC CE and downlink data, and the UE parses the UE ID in the MAC CE, and determines whether the parsed UE ID is an RRC_INACTIVE UE ID of the UE, if it is the UE The RRC_INACTIVE UE ID receives the downlink data portion of the MAC PDU.
  • PDCCH Physical Downlink Control Channel
  • Step 2 The UE sends a feedback message to the gNB, where the feedback message is specifically a random access request preamble or an ACK feedback of the corresponding feedback sequence sent on the resource location corresponding to the scheduling command or the downlink data transmission.
  • the feedback message is specifically a random access request preamble or an ACK feedback of the corresponding feedback sequence sent on the resource location corresponding to the scheduling command or the downlink data transmission.
  • Step 3 If the UE does not successfully receive the downlink data transmission, continuously monitor the downlink data transmission during the downlink data listening period.
  • Step 1 The gNB sends a downlink scheduling command (NR-PDCCH) and a downlink data transmission to the UE in the cell in which the UE last transmits the uplink transmission, or in the location cell that is finally fed back by the UE, and the downlink scheduling command carries the RNTI common to the RRC_INACTIVE UE.
  • the MAC PDU of the downlink data transmission organization includes a MAC CE and downlink data, the MAC CE includes an RRC_INACTIVE UE ID, and the downlink data part is downlink data sent to the UE.
  • Step 2 (Optional): receiving the feedback message of the UE, where the feedback message is specifically a random access request preamble or an ACK feedback of a corresponding feedback sequence sent on a resource location corresponding to the scheduling command or the downlink data transmission.
  • the feedback message is specifically a random access request preamble or an ACK feedback of a corresponding feedback sequence sent on a resource location corresponding to the scheduling command or the downlink data transmission.
  • Step 3 If the acknowledgment feedback sent by the UE is not received, or the gNB adopts a fixed number of transmission times, return to step 1 and continue to send downlink data to the UE until receiving a feedback message sent by the UE, confirming that the downlink data transmission is successful, or After confirming that the UE enters the DRX state, or reaches the maximum number of transmissions, the downlink data is no longer sent to the UE.
  • the operation performed by the UE includes the following steps:
  • Step 1 The UE receives a downlink scheduling command (NR-PDCCH), where the downlink scheduling command carries the C-RNTI of the UE, and the UE determines, according to the C-RNTI, that the downlink data is sent to itself, and receives downlink data corresponding to the scheduling command. transmission.
  • NR-PDCCH downlink scheduling command
  • Step 2 The UE sends a feedback message to the gNB, where the feedback message is specifically a random access request preamble or an ACK feedback of the corresponding feedback sequence sent on the resource location corresponding to the scheduling command or the downlink data transmission.
  • the feedback message is specifically a random access request preamble or an ACK feedback of the corresponding feedback sequence sent on the resource location corresponding to the scheduling command or the downlink data transmission.
  • Step 3 If the UE does not successfully receive the downlink data transmission, continuously monitor the downlink data transmission during the downlink data listening period.
  • Step 1 The gNB sends a downlink scheduling command (NR-PDCCH) and a downlink data transmission to the UE in the cell in which the UE last transmits the uplink transmission, or in the location cell that is finally fed back by the UE, where the downlink scheduling command carries the C-RNTI of the UE.
  • the downlink data transmission includes downlink data sent by the UE.
  • Step 2 (Optional): receiving the feedback message of the UE, where the feedback message is specifically a random access request preamble or an ACK feedback of a corresponding feedback sequence sent on a resource location corresponding to the scheduling command or the downlink data transmission.
  • the feedback message is specifically a random access request preamble or an ACK feedback of a corresponding feedback sequence sent on a resource location corresponding to the scheduling command or the downlink data transmission.
  • Step 3 If the acknowledgment feedback sent by the UE is not received, or the gNB adopts a fixed number of transmission times, return to step 1 and continue to send downlink data to the UE until the downlink data transmission is confirmed to be successful, or the UE is confirmed to enter the DRX state, or The maximum number of transmissions.
  • FIG. 3 is a structural diagram of a data transmission apparatus according to an embodiment of the present invention, where the apparatus includes:
  • the monitoring module 31 is configured to monitor, after the uplink data transmission is completed in the inactive RRC_INACTIVE state, the downlink data transmission is monitored in the determined time period;
  • the receiving hibernation module 32 is configured to enter a discontinuous reception DRX state after the determined time period expires or the downlink data is received.
  • the monitoring module 31 is specifically configured to complete the uplink data transmission and enter the continuous receiving state until the downlink data transmission is monitored; or, after completing the uplink data transmission, enter the continuous receiving state, start the timer T1, and the timer duration of the timer T1
  • the internal downlink data transmission is performed; or, after the uplink data transmission is completed, the timer T2 is started, and the DRX state is entered within the timing of the timer T2.
  • the timer T3 is started, and the continuous reception state is entered, and The downlink data transmission is monitored within the timing of the timer T3.
  • the monitoring module 31 is further configured to receive downlink data, where the downlink data includes information that the network side indicates that the UE continues to perform downlink data transmission monitoring, and re-lists downlink data transmission in the determined time period; or receives the downlink.
  • the data or the downlink scheduling command starts the timer T4, monitors the downlink data transmission within the timing of the timer T4, and restarts the timer T4 when receiving the new downlink data or the downlink scheduling command.
  • the device also includes:
  • a sending module configured to send, to the network side, indication information that the UE will enter to monitor downlink data transmission.
  • the receiving and receiving module 32 is configured to receive a downlink notification message of the paging UE sent by the network side, and receive downlink data sent together with the notification message; or receive a downlink scheduling command sent by the network side, where the downlink scheduling command is sent.
  • the RNTI of the RRC_INNACTIVE UE is received, and the downlink data transmission scheduled by the downlink scheduling command is received, and it is determined whether the UE ID information carried in the downlink data transmission is the same as the UE ID information of the downlink data transmission. If yes, the downlink in the downlink data transmission is analyzed.
  • the data content or, receiving the downlink scheduling command sent by the network side, determining whether the C-RNTI of the UE carried in the downlink scheduling command is the same as its own C-RNTI, and if yes, receiving the downlink scheduled by the downlink scheduling command data transmission.
  • the above data transmission device is located in the UE.
  • FIG. 4 is a structural diagram of a data transmission apparatus according to an embodiment of the present invention, where the apparatus includes:
  • the receiving module 41 is configured to complete uplink data transmission with the UE in the RRC_INACTIVE state
  • the sending module 42 is configured to send downlink data to the UE within a determined time period.
  • the sending module 42 is specifically configured to: after the uplink data transmission is completed with the UE, send the downlink data to the UE at any time; or, after completing the uplink data transmission with the UE, start the timer T1, and inward to the UE at the timing of the timer T1.
  • the timer T2 is started.
  • the timer T3 is started, and the downlink data is sent to the UE within the timing of the timer T3.
  • the sending module 42 is further configured to send, to the UE, information indicating that the UE continues to perform downlink data transmission monitoring, and re-transmit downlink data to the UE within the determined time period; or after sending downlink data or a downlink scheduling command, start The timer T4 restarts the timer T4 when transmitting a new downlink data or a downlink scheduling command.
  • the receiving module 41 is further configured to receive indication information that is sent by the UE to be sent by the UE to monitor downlink data transmission.
  • the sending module 42 is specifically configured to send a downlink notification message of the paging UE to the UE, and send the downlink data together with the notification message; or send a downlink scheduling command to the UE, where the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE, Dispatching a downlink data transmission to the UE by using the downlink scheduling command, where the downlink data transmission carries the UE ID information and the downlink data content; or, the downlink scheduling command is sent to the UE, and the downlink data transmission is scheduled to the UE by using the downlink scheduling command, where The downlink scheduling command carries the C-RNTI of the UE.
  • the above data transmission device is located on the network side, and specifically may be located in the gNB.
  • FIG. 5 is a data transmission system according to an embodiment of the present invention.
  • the system includes a data transmission device applied to the terminal 51 and a data transmission device applied to the network side device 52.
  • the embodiment of the invention discloses a data transmission method, device and system.
  • the method includes: after completing uplink data transmission in an RRC_INACTIVE state, the UE monitors downlink data transmission within a certain time period; when the determined time period expires or After receiving the downlink data, it enters the DRX state. After the UE completes the uplink data transmission, the UE can listen to the downlink data within a certain period of time. After the determined time period expires or the downlink data is received, the DRX state is entered.
  • the gNB can be configured to transmit downlink data to the UE in the RRC_INACTIVE state in time to avoid delay of subsequent data transmission.
  • the embodiment of the invention discloses a UE, which is specifically as follows:
  • FIG. 6 is a schematic structural diagram of a UE. As shown in the figure, the user equipment includes:
  • the transceiver 610 is configured to receive and transmit data under the control of the processor 600, and performs the following processes:
  • the processor 600 is configured to read a program in the memory 620 and perform the following process:
  • the downlink data transmission is monitored within the determined time period
  • the discontinuous reception DRX state is entered.
  • the monitoring downlink data transmission during the determined time period includes:
  • the UE After the UE completes the uplink data transmission, it enters the continuous receiving state until the downlink data transmission is monitored; or
  • the system After the UE completes the uplink data transmission, the system enters the continuous receiving state, starts the timer T1, and monitors the downlink data transmission within the timing of the timer T1; or
  • the timer T2 is started, and the DRX state is entered within the timing of the timer T2.
  • the timer T3 is started, and the UE enters the continuous receiving state, and The downlink data transmission is monitored within the timing of the timer T3.
  • the monitoring downlink data transmission in the determined time period further includes:
  • the downlink data is received by the UE, where the downlink data includes information indicating that the UE continues to perform downlink data transmission monitoring, and the downlink data transmission is monitored again during the determined time period; or
  • the UE receives the downlink data or the downlink scheduling command, starts the timer T4, monitors the downlink data transmission within the timing of the timer T4, and restarts the timer T4 when receiving the new downlink data or the downlink scheduling command.
  • the timing duration of the timer T1, the timing duration of the timer T2, the timing duration of the timer T3, and the timing duration of the timer T4 are determined in the following manner:
  • the network side configures the UE by using a broadcast message
  • the network side configures the UE by dedicated signaling; or,
  • the uplink data transmission includes:
  • the specific type of service is configured by the network side for the UE by using a broadcast message, or the network side is configured by the UE by using dedicated signaling.
  • the specific uplink data packet is an uplink data packet that needs to be sent by the network side to the corresponding downlink data transmission.
  • the preset time period is configured by the network side to be used by the UE by using a broadcast message
  • the network side is configured for the UE by dedicated signaling; or
  • the UE is active during a specific service transmission and has data transmission.
  • the broadcast message or the dedicated signaling carries the identifier information of the service type, where the identifier information of the service type includes: an application layer identifier, or a radio bearer identifier RB ID. Or logical channel identifier LCID, or flow identifier Flow ID.
  • the method before the UE performs the uplink data transmission in the RRC_INACTIVE state, before the monitoring of the downlink data transmission in the determined time period, the method further includes:
  • the UE Sending to the network side, the UE will enter indication information for monitoring downlink data transmission.
  • the receiving completion downlink data includes:
  • Receiving a downlink scheduling command sent by the network side where the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE, receives the downlink data transmission scheduled by the downlink scheduling command, and determines whether the UE ID information carried in the downlink data transmission is the same as its own UE ID information. And if yes, parsing the downlink data content in the downlink data transmission; or
  • Receiving a downlink scheduling command sent by the network side determining whether the C-RNTI of the UE carried in the downlink scheduling command is the same as its own C-RNTI, and if yes, receiving the downlink data transmission scheduled by the downlink scheduling command.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • the embodiment of the invention discloses a base station, which is specifically as follows:
  • FIG. 7 is a schematic structural diagram of a base station, as shown in the figure, the base station includes:
  • the processor 700 is configured to read a program in the memory 720 and perform the following process:
  • the transceiver 710 is configured to receive and transmit data under the control of the processor 700, and performs the following processes:
  • the downlink data is sent to the UE within the determined time period.
  • the sending the downlink data to the UE within the determined time period includes:
  • the timer T1 is started, and the downlink data is sent to the UE within the timing of the timer T1;
  • the timer T2 is started. After the timer T2 expires, the timer T3 is started, and the downlink data is sent to the UE within the timing of the timer T3.
  • the sending the downlink data to the UE in the determining time period further includes:
  • the timer T4 After transmitting the downlink data or the downlink scheduling command on the network side, the timer T4 is started, and when the new downlink data or the downlink scheduling command is sent, the timer T4 is restarted.
  • the timing duration of the timer T1, the timing duration of the timer T2, the timing duration of the timer T3, and the timing duration of the timer T4 are pre-configured by the network side for the UE, or pre-defined by the protocol. .
  • the uplink data includes:
  • the specific type of service is pre-configured for the UE by the network side.
  • the specific uplink data packet is an uplink data packet that needs to be sent by the network side to the corresponding downlink data transmission.
  • the method when the network side performs uplink data transmission with the UE in the RRC_INACTIVE state, the method further includes:
  • the UE will enter indication information for monitoring downlink data transmission.
  • the sending downlink data to the UE includes:
  • the downlink scheduling command carries the RNTI common to the RRC_INNACTIVE UE
  • the downlink scheduling data is used to schedule the downlink data transmission to the UE, where the downlink data transmission carries the UE ID information and the downlink data content
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 700 and various circuits of memory represented by memory 720.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 710 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.
  • the embodiment of the invention discloses a computer device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, and the processor implements the data transmission method on the UE side when the computer program is executed. See the above embodiment for details.
  • the embodiment of the invention discloses a computer device, comprising a memory, a processor and a computer program stored on the memory and operable on the processor, and the method for implementing data transmission on the network side when the processor executes the computer program . See the above embodiment for details.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, a fully applied embodiment, or a combination of application and hardware aspects.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种数据传输方法、装置及***,用以解决现有技术中RRC_INACTIVE态下UE的DRX周期通常比较长,gNB不能及时向在RRC_INACTIVE态下的UE传输下行数据,进一步造成后续数据传输的延迟的问题。所述方法包括:UE在RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;当所述确定时间段超时或接收完成下行数据后,进入DRX状态。由于UE在完成上行数据传输后,可以在确定时间段内监听下行数据,当该确定时间段超时或接收完成下行数据后,进入DRX状态。可以使gNB及时向在RRC_INACTIVE态下的UE传输下行数据,避免造成后续数据传输的延迟。

Description

一种数据传输方法、装置及***
本申请要求在2017年1月4日提交中国专利局、申请号为201710005684.8、发明名称为“一种数据传输方法、装置及***”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及数据传输技术领域,特别涉及一种数据传输方法、装置及***。
背景技术
目前,随着无线通信***的发展,终端UE(User Equipment,用户设备)类型和业务类型多样化、UE省电、节约网络资源和满足各种业务类型的需求并存。为了同时保证UE省电和快速数据传输,引入一种UE状态不活跃(RRC_INACTIVE)状态,在RRC_INACTIVE状态下UE保持核心网连接,但没有空口连接,即不与特定小区有随时可以进行数据传输的连接关系。
新一代无线通信***(NR***或称5G***)支持三种RRC(Radio Resource Control,无线资源控制)状态,分别为:空闲状态(RRC_IDLE)、不活跃状态(RRC_INACTIVE)和连接状态(RRC_CONNECTED),分别简称为idle态、RRC_INACTIVE态和connected态。
在RRC_INACTIVE状态下,网络侧gNB(next generation NodeB,下一代基站)和UE虽然存储有UE上下文(context),但没有建立空口连接,如果UE有数据要发送,需要临时发起。现有技术中,如果UE有大量数据需要发送,UE需要进入连接态,如果UE有突发小数据发送,则UE需要每次激活。对于上行数据,UE可以通过随机接入或基于竞争的传输方式发送。对于下行数据,gNB只能在UE接收通知消息的时刻通知UE接收下行数据并向UE发送下行数据。为了使UE省电,UE在接收通知消息时采用DRX (Discontinuous Reception,非连续接收)的方式接收,UE只在DRX周期的确定时刻醒来才能接收通知消息,但是DRX周期通常比较长。因此这种下行数据的传输方式,不利于gNB及时向在RRC_INACTIVE状态下的UE传输下行数据,且由于下行数据传输延迟,有可能进一步造成后续数据传输的延迟。
发明内容
本发明提供了一种数据传输方法、装置及***,用以解决现有技术中因RRC_INACTIVE状态下UE的DRX周期长使得gNB不能及时向在RRC_INACTIVE状态下的UE传输下行数据,进一步造成后续数据传输的延迟的问题。
本发明实施例公开了一种数据传输方法,所述方法包括:
UE在不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
进一步地,所述在确定时间段内监听下行数据传输包括:
所述UE完成上行数据传输后进入连续接收状态,直至监听到下行数据传输;或,
所述UE完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输;或,
所述UE完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后启动定时器T3,UE进入连续接收状态,并在所述定时器T3的定时时长内监听下行数据传输。
进一步地,所述在确定时间段内监听下行数据传输还包括:
所述UE接收到下行数据,所述下行数据中包含网络侧指示所述UE继续 进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输;或
所述UE接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命令时,重启定时器T4。
进一步地,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长采用以下方式确定:
网络侧通过广播消息为所述UE配置;或,
网络侧通过专用信令为所述UE配置;或,
通过协议预先规定。
进一步地,所述上行数据传输包括:
任意一个上行数据传输;或,
特定类型的业务的任意一个上行数据传输;或,
特定类型的业务的特定上行数据包传输;或,
在预设时间段内的上行数据传输。
进一步地,所述特定类型的业务为网络侧通过广播消息为所述UE配置的,或,网络侧通过专用信令为所述UE配置的。
进一步地,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
进一步地,所述预设时间段为网络侧通过广播消息为所述UE配置的;或,
网络侧通过专用信令为所述UE配置的;或,
UE在特定业务业务传输激活和有数据传输期间。
进一步地,所述网络侧为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或无线承载标识RB ID、或逻辑信道标识LCID、或流标识Flow ID。
进一步地,所述UE在RRC_INACTIVE状态下进行上行数据包传输时,在确定时间段内监听下行数据传输之前,所述方法还包括:
向网络侧发送所述UE将进入监听下行数据传输的指示信息。
进一步地,所述接收完成下行数据包括:
接收网络侧发送的寻呼UE的下行通知消息,并接收与该通知消息一起发送的下行数据;或,
接收网络侧发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容;或,
接收网络侧发送的下行调度命令,判断所述下行调度命令中携带的UE的C-RNTI是否与自身的C-RNTI相同,如果是,接收所述下行调度命令所调度的下行数据传输。
本发明实施例公开了一种数据传输方法,所述方法包括:
网络侧与在RRC_INACTIVE状态下的UE完成上行数据传输后,在确定时间段内向UE发送下行数据。
进一步地,所述在确定时间段内向UE发送下行数据包括:
所述网络侧与UE完成上行数据传输后,在任意时刻向UE发送下行数据;或,
所述网络侧与UE完成上行数据传输后,启动定时器T1,在定时器T1的定时时长内向UE发送下行数据;或,
所述网络侧与UE完成上行数据传输后,启动定时器T2,当所述定时器T2超时后启动定时器T3,在所述定时器T3的定时时长内向UE发送下行数据。
进一步地,所述在确定时间段内向UE发送所述下行数据还包括:
网络侧向UE发送指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内向UE发送下行数据;或
网络侧在发送下行数据或下行调度命令后,启动定时器T4,并在发送新的下行数据或下行调度命令时,重启定时器T4。
进一步地,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长为所述网络侧针对所述UE预先配置的,或协议预先规定的。
进一步地,所述上行数据包括:
任意一个上行数据;或,
特定类型的业务的任意一个上行数据;或,
特定类型的业务的特定上行数据包;或,
在预设时间段内的上行数据。
进一步地,所述特定类型的业务为网络侧针对所述UE预先配置的。
进一步地,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
进一步地,所述网络侧与在RRC_INACTIVE状态下的UE进行上行数据传输时,所述方法还包括:
接收所述UE发送的所述UE将进入监听下行数据传输的指示信息。
进一步地,所述向UE发送下行数据包括:
向UE发送寻呼UE的下行通知消息,并与该通知消息一起发送下行数据;或,
向UE发送下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,通过该下行调度命令向UE调度下行数据传输,其中,该下行数据传输中携带UE ID信息和下行数据内容;或,
向UE发送下行调度命令,通过该下行调度命令向UE调度下行数据传输,其中,所述下行调度命令中携带UE的C-RNTI。
本发明实施例公开了一种数据传输装置,所述装置包括:
监听模块,用于UE在不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
接收休眠模块,用于当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
本发明实施例公开了一种数据传输装置,所述装置包括:
接收模块,用于与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输;
发送模块,用于在确定时间段内向UE发送下行数据。
本发明实施例公开了一种数据传输***,所述***包括上述应用于终端的数据传输装置和上述应用于网络侧设备的数据传输装置。
本发明实施例公开了一种用户设备,用户设备包括:
收发机,用于在处理器的控制下接收和发送数据,执行下列过程:
进行上下行数据传输;
处理器,用于读取存储器中的程序,执行下列过程:
在UE不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
本发明实施例公开了一种基站,基站包括:
处理器,用于读取存储器中的程序,执行下列过程:
确定网络侧是否与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输;
收发机,用于在处理器的控制下接收和发送数据,执行下列过程:
在网络侧与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输后,在确定时间段内向UE发送下行数据。
本发明实施例公开了一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现UE侧的数据传输方法。
本发明实施例公开了一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现网络侧的数据传输述方法。
本发明实施例公开了一种数据传输方法、装置及***,所述方法包括:UE在RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;当所述确定时间段超时或接收完成下行数据后,进入DRX状态。由于UE在完成上行数据传输后,可以在确定时间段内监听下行数据,当该确定时间段超时或接收完成下行数据后,进入DRX状态。可以使gNB及时向在RRC_INACTIVE状态下的UE传输下行数据,避免造成后续数据传输的延迟。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种数据传输过程示意图;
图2为本发明实施例提供的一种数据传输过程示意图;
图3为本发明实施例提供的一种数据传输装置结构图;
图4为本发明实施例提供的一种数据传输装置结构图;
图5为本发明实施例提供的一种数据传输***结构图;
图6为本发明实施例提供的一种UE结构示意图;
图7为本发明实施例提供的一种基站结构示意图。
具体实施方式
为了使gNB可以及时向在RRC_INACTIVE状态下的UE传输下行数据,避免造成后续数据传输的延迟,本发明实施例提供了一种数据传输方法、装置及***。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
图1为本发明实施例提供的一种数据传输过程示意图,该过程包括以下步骤:
步骤101:UE在RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输。
步骤102:当所述确定时间段超时或接收完成下行数据后,进入DRX状态。
本发明实施例中提供的数据传输方法应用于UE,UE可以与gNB进行上行数据传输,也可以接收所述gNB发送的下行数据。UE在RRC_INACTIVE状态下完成上行数据传输后,可以在确定时间段内监听下行数据传输。UE判断所述确定时间段是否超时,并且判断是否接收完成下行数据,如果UE判断出所述确定时间段超时或接收完成下行数据,则进入DRX状态。
由于UE在完成上行数据传输后,可以在确定时间段内监听下行数据,当该确定时间段超时或接收完成下行数据后,进入DRX状态。可以使gNB及时向在RRC_INACTIVE状态下的UE传输下行数据,避免造成后续数据传输的延迟。
如果gNB确定在发送一个下行数据后,后续还会有下行数据传输,则此时gNB可以在发送下行数据时指示UE继续监听下行数据传输。因此在上述实施例的基础上,如果UE接收到下行数据,则在进入DRX状态之前,所述方法还包括:
所述UE接收到的下行数据中包含gNB指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输。
UE接收到gNB发送的下行数据,如果该下行数据中包含gNB指示所述UE继续进行下行数据传输监听的信息,所述UE则重新在所述确定时间段内监听下行数据传输。如果下行数据数据中不包含gNB指示所述UE继续进行 下行数据传输监听的信息,所述UE在该确定时间段超时或接收完成下行数据后,进入DRX状态。
在上述实施例中,所述在确定时间段内监听下行数据传输包括:
所述UE完成上行数据传输后进入连续接收状态,直至监听到下行数据传输;或,
所述UE完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输;或,
所述UE完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后启动定时器T3,UE进入连续接收状态,并在定时器T3的定时时长内监听下行数据传输。
具体的,UE完成上行数据传输后进入连续接收状态,监听下行数据传输,直至接收到下行数据传输,并在接收完成下行数据后,进入DRX状态。
或者,UE完成上行数据传输后进入连续接收状态,并启动定时器T1,监听下行数据传输,在定时器T1超时或接收完成下行数据后,进入DRX状态。其中,所述定时器T1的定时时长可以是gNB通过广播消息为每个UE配置;或,可以是gNB通过专用信令为该UE配置;或,也可以是通过协议预先规定的。
或者,UE在完成上行数据传输后,启动定时器T2,在定时器T2运行期间UE进入DRX状态,定时器T2超时后UE进入连续接收状态,同时启动定时器T3,在定时器T3的定时时长内监听下行数据传输,在定时器T3超时或接收完成下行数据后,进入DRX状态。
定时器T2的定时时长对应于从完成上行传输到gNB准备好下行数据传输之间的时间,对于特定业务,例如下行数据传输固定为对上行传输数据的TCP(Transmission Control Protocol,传输控制协议)的ACK(Acknowledgement,确认)字符TCP ACK反馈的情况,定时器T2的定时时长是一个可以预估的值。
其中,所述定时器T2的定时时长可以是gNB通过广播消息为每个UE配 置的,或,通过协议预先规定的,或,gNB通过专用信令为所述UE配置的。所述定时器T3的定时时长可以是gNB通过广播消息为每个UE配置的,或gNB通过广播消息为每个UE配置的,或,gNB通过专用信令为所述UE配置的。
其中定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长的确定方式可以相同或不同。例如定时器T2的定时时长可以是通过协议规定的,定时器T3的定时时长则是gNB通过专用信令为所述UE配置的。
所述在确定时间段内监听下行数据传输还包括:
所述UE接收到下行数据,所述下行数据中包含网络侧指示所述UE继续进行下行数据传输监听的信息,重新在所述确定的时间段内监听下行数据传输;或,
所述UE接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命令时,重启定时器T4。
如果网络侧未为UE配置监听下行数据传输的定时器T4,所述UE接收到下行数据,所述下行数据中包含网络侧指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输。
具体的,可以是所述UE接收到的下行数据中包含gNB指示所述UE继续进行下行数据传输监听的信息后进入连续接收状态,持续监听下行数据传输,直至接收到下行数据传输并且没有接收到指示所述UE继续进行下行数据传输监听的信息,进入DRX状态。
或者,所述UE完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输,在该定时器T1的定时时长内接收到的下行数据中包含gNB指示所述UE继续进行下行数据传输监听的信息时,重新启动定时器T1,重新在所述定时器T1的定时时长内监听下行数据传输。当重新启动的定时器T1的定时时长超时或接收完成下行数据后,进 入DRX状态。
或者,所述UE完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2的定时时长超时后启动定时器T3,UE进入连续接收状态,并在定时器T3的定时时长内监听下行数据传输。在该定时器T3的定时时长内接收到的下行数据中包含gNB指示所述UE继续进行下行数据传输监听的信息时,重新启动定时器T3,重新在所述定时器T3的定时时长内监听下行数据传输。当所述重新启动的定时器T3的定时时长超时或接收完成下行数据后,进入DRX状态。
如果网络侧为UE配置监听下行数据传输的定时器T4,所述UE接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命令时,重启定时器T4。
具体地,对应UE在确定时间段内监听下行数据传输中的各个实施例,如果对应所述UE完成上行数据传输后进入连续接收状态,直至监听到下行数据传输,UE接收到下行数据传输或下行调度命令后,启动定时器T4,在接收到新的下行数据传输或下行调度命令后重启定时器T4,定时器T4超时UE进入DRX状态。
如果对应UE完成上行数据传输后进入连续接收状态,并启动定时器T1,监听下行数据传输,接收到下行数据传输或下行调度命令后,启动定时器T4,在接收到新的下行数据传输或下行调度命令后重启定时器T4,定时器T4超时UE进入DRX状态,定时器T4的定时时长可以与定时器T1的定时时长相同或不同。
如果对应UE在完成上行数据传输后,启动定时器T2,在定时器T2运行期间进入DRX状态,定时器T2超时后UE进入连续接收状态,同时启动定时器T3,在定时器T3运行期间监听下行数据传输,接收到下行数据传输或下行调度命令后,启动定时器T4,在接收到新的下行数据传输或下行调度命令后重启定时器T4,定时器T4超时UE进入DRX状态,定时器T4的定时时长可以与定时器T3的定时时长相同或不同。
在上述实施例中,所述上行数据传输可以是任意一个上行数据传输,可以是特定类型的业务的任意一个上行数据传输,可以是特定类型的业务的特定上行数据包传输,也可以是在预设时间段内的上行数据传输。
具体的,UE在RRC_INACTIVE状态下完成任意一个上行数据传输后,启动下行数据传输监听过程。
或者,UE在RRC_INACTIVE状态下完成特定业务的任意一个上行数据传输后,启动下行数据传输监听过程。
或者,UE在RRC_INACTIVE状态下完成特定业务的特定上行数据包传输后,启动下行数据传输监听过程。
其中,所述特定类型的业务为gNB通过广播消息为每个UE配置的,此时每个UE的特定类型的业务都是相同的,或gNB也可以通过专用信令为所述UE配置的,此时每个UE的特定类型的业务可以是相同,也可以是不同的。
所述gNB为所述UE配置特定类型的业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID(Radio Bear identification,无线承载标识)、或LC ID(Logical channel identification,逻辑信道标识)、或Flow ID(Flow identification,流标识)等。
网络侧不仅可以为UE配置特定类型的业务,还可以针对特定类型的业务配置特定上行数据包,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。即所述上行数据包是指UE确定随后会有对应下行数据传输的数据包,例如在TCP业务中,UE在发送了几个TCP上行数据传输后,会接收到下行TCP的ACK的信息。该TCP ACK信息前的上行数据包即为特定上行数据包。
所述UE在RRC_INACTIVE状态下进行特定类型的业务的特定上行数据包传输时,在确定时间段内监听下行数据传输之前,所述方案还包括:向网络侧发送所述UE将进入监听下行数据传输的指示信息。
根据上述描述可知,UE在发送了几个TCP上行数据传输后,会接收到下行TCP的ACK的信息。因此UE在RRC_INACTIVE状态下进行特定类型 的业务的特定上行数据包传输时,可以向网络侧的gNB发送UE将进入监听下行数据传输的指示信息,以便接收gNB的下行数据传输。
或者,UE在预设时间段内完成上行数据传输后,启动下行数据传输监听过程。
所述预设时间段为网络侧通过广播消息为每个UE配置的,或,网络侧通过专用信令为所述UE配置的,或UE在特定业务传输激活和有数据传输期间持续启动下行数据传输监听过程。网络侧通过广播消息为UE配置预设时间段时,每个UE的预设时间段都相同,网络侧通过专用信令为所述UE配置预设时间段时,每个UE的预设时间段可以相同,也可以不同。
在本发明实施例中,所述接收完成下行数据包括:
接收网络侧发送的寻呼UE的下行通知消息,并接收与该通知消息一起发送的下行数据;或,
接收网络侧发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI(Radio Network Temporary Identity,无线网络临时识别),接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容;或,
接收网络侧发送的下行调度命令,判断所述下行调度信令中携带的UE的C-RNTI是否与自身的C-RNTI(Cell-Radio Network Temporary Identifier,小区无线网络临时标识)相同,如果是,接收所述下行调度命令所调度的下行数据传输。
具体的,网络侧具体为gNB通过RAN侧通知消息(notification)通知UE接收下行数据传输,并将下行数据发送给UE。所述RAN(Radio Access Network,无线接入网)侧通知消息可以在RAN侧通知消息区域RNA(RAN-based Notification Area,RAN通知区域)内发送,该区域包含一个或多个小区,也可以只在gNB确定的UE所在的小区内发送。
或者,网络侧具体为gNB在UE所在小区内,用特殊 RRC_INACTIVE-RNTI加扰的调度命令NR-PDCCH为UE调度下行数据传输,在下行数据传输的MAC PDU(MAC:Media Access Control,媒体接入控制;PDU:Protocol Data Unit,协议数据单元)中,包含携带RRC_INACTIVE UE ID的MAC层控制信令MAC CE(Control Element,控制单元)和发送给UE的下行数据包。UE在与该下行数据传输对应的反馈位置发送ARQ(Automatic Repeat Request,自动重复请求)反馈;如果gNB没有接收到ACK反馈,在UE监听下行数据传输期间,gNB采用相同的方式发送下行数据,直至收到UE的ACK反馈或定时器超时。如果定时器超时gNB都没有成功发送下行数据,在下一个UE监听下行数据传输期间,gNB采用通知消息通知UE接收下行数据传输,并将下行数据发送给UE,即回退到上述gNB通过RAN侧通知消息通知UE接收下行数据传输,并将下行数据发送给UE。
或者,网络侧具体为gNB在UE所在小区内,用C-RNTI加扰的调度命令NR-PDCCH为UE调度下行数据传输,该C-RNTI是UE进入RRC_INACTIVE状态前在连接态时gNB分配的,并存储在RRC_INACTIVE UE的UE context中。UE在与该下行数据传输对应的反馈位置发送ARQ反馈;如果gNB没有接收到ACK反馈,在UE监听下行数据传输期间,gNB采用相同的方式发送下行数据,直至收到UE的ACK反馈或定时器超时。如果定时器超时gNB都没有成功发送下行数据,在下一个UE监听下行数据传输期间,gNB采用通知消息通知UE接收下行数据传输并将下行数据发送给UE,即回退到上述gNB通过RAN侧通知消息通知UE接收下行数据传输,并将下行数据发送给UE。该方法下要求gNB为RRC_INACTIVE状态的UE在RNA区域内保留UE连接态下的C-RNTI,且在RNA的多个小区下该C-RNTI是唯一的。
图2为本发明实施例提供了一种数据传输过程示意图,所述过程应用于网络侧,所述过程包括以下步骤:
步骤201:接收在不活跃RRC_INACTIVE状态下的UE发送的上行数据。
步骤202:在确定时间段内向UE发送下行数据。
由于gNB可以在确定时间段内向UE发送下行数据,可以及时向在RRC_INACTIVE状态下的UE传输下行数据,避免造成后续数据传输的延迟。
所述在确定时间段内向UE发送下行数据包括:
所述网络侧与UE完成上行数据传输后,在任意时刻向UE发送下行数据;或,
所述网络侧与UE完成上行数据传输后,启动定时器T1,在定时器T1的定时时长内向UE发送下行数据;或,
所述网络侧与UE完成上行数据传输后,启动定时器T2,当所述定时器T2超时后启动定时器T3,在所述定时器T3的定时时长内向UE发送下行数据。
所述在确定时间段内向UE发送所述下行数据还包括:
网络侧向UE发送指示所述UE继续进行下行数据传输监听的信息,如果网络侧有新的指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内向UE发送下行数据;或,
网络侧在发送下行数据或下行调度命令后,启动定时器T4,并在发送新的下行数据或下行调度命令时,重启定时器T4。
所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长为所述网络侧针对所述UE预先配置的,或协议预先规定的,其中定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长的确定方式相同或不同。
所述上行数据包括:
任意一个上行数据;或,
特定类型的业务的任意一个上行数据;或,
特定类型的业务的特定上行数据包;或,
在预设时间段内的上行数据。
所述特定类型的业务为网络侧针对所述UE预先配置的。
所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
所述网络侧与UE进行上行数据传输时,所述方法还包括:
接收所述UE发送的所述UE将进入监听下行数据传输的指示信息。
所述向UE发送下行数据包括:
向UE发送寻呼UE的下行通知消息,并与该通知消息一起发送下行数据;或,
向UE发送下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,通过该下行调度命令向UE调度下行数据传输,其中,该下行数据传输中携带UE ID信息和下行数据内容;或,
向UE发送下行调度命令,通过该下行调度命令向UE调度下行数据传输,其中,所述下行调度命令中携带UE的C-RNTI。
将上述各情况分为以下各实施例,分别对本发明实施例中的数据传输过程进行描述。
上述的在定时器的定时时长内即为在定时器运行期间内。
首先描述UE在RRC_INACTIVE状态下完成任意一个上行数据传输后启动下行数据传输监听的各实施例。
实施例1:
UE在RRC_INACTIVE状态下完成任意一个上行数据传输后,进入连续接收状态,监听下行数据传输,直至接收到下行数据传输,在接收完成下行数据后,进入DRX状态。
在本发明实施例中UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下完成任意一个上行数据传输后,启动下行数据传输监听过程。
监听下行数据时间段的确定方式是:所述UE在RRC_INACTIVE状态下完成上行数据传输后进入连续接收状态,监听下行数据传输,直至监听到下行数据传输,并在接收完成下行数据后进入DRX状态。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成任意一个上行数据传输,进入连 续接收状态。
步骤二:监听下行数据传输,如果监听到下行数据传输,则进行步骤三,如果未监听到下行数据传输,则持续进行下行数据传输监听。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,持续监听下行数据传输,在接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时,启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时,重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,在接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE的上行数据传输后,认为UE进入连续接收状态。
步骤二:在有下行数据需要发送给UE时,在任意时刻向UE发送下行数据。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,认为UE保持在连续接收状态并在后续向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时,启动或重启定时器T4,定时器T4运行期间gNB可以向UE发送下行数据,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
在该分支中,gNB在定时器T4运行期间可以向UE发送下行数据,认为每次发送下行数据或下行调度命令时,UE的定时器T4重启,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,gNB认为UE接收完成下行数据传输后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
实施例2:
UE在RRC_INACTIVE状态下完成任意一个上行数据传输后,进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输,当所述定时器T1超时或接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式:UE在完成上行数据传输后进入连续接收状态,并启动定时器T1,监听下行数据传输,在定时器T1超时或接收完成下行数据后,进入DRX状态。定时器T1的定时时长是gNB通过广播消息为每个UE配置,或通过专用信令为所述UE配置的;或通过协议规定的。
UE启动下行数据传输监听过程的条件:UE在RRC_INACTIVE状态下发送任意一个上行数据传输后,启动下行数据传输监听过程。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成任意一个上行数据传输,启动定时器T1。
步骤二:在定时器T1运行期间,进入连续接收状态,监听下行数据传输。如果未接收到下行数据传输,并且定时器T1超时,则进入DRX状态,如果接收到下行数据传输,进行步骤三。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4, UE接收到gNB发送的继续监听下行数据传输的指示信息,重启定时器T1,持续监听下行数据传输,并在每次接收到新的继续监听下行数据传输的指示信息时重启定时器T1,在定时器T1运行期间监听下行数据传输,定时器T1超时或接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时,启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时,重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;
上述分支2中定时器T4可以与定时器T1相同,此时分支1和分支2可以合并;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,gNB认为UE进入连续接收状态,启动定时器T1。
步骤二:在定时器T1运行期间,有下行数据需要发送给UE时,向UE发送下行数据,当完成该下行数据传输后进行步骤三。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,每次发送继续监听下行数据传输的指示信息后重启定时器T1,认为UE在定时器T1运行期间监听下行数据传输,可以在此期间向UE发送下行数据,定时器T1超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;或
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每 次发送下行数据或下行调度命令时,启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;
上述分支中定时器T4可以与定时器T1相同,此时分支1和分支2可以合并。
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,gNB认为UE在接收完成下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
实施例3:
UE在RRC_INACTIVE状态下完成任意一个上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后进入连续接收状态,并在定时器T3的定时时长内监听下行数据传输,当所述定时器T3超时或接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE在完成上行数据传输后,启动定时器T2,在定时器T2运行期间进入DRX状态,定时器T2超时后进入连续接收状态,同时启动定时器T3,在定时器T3运行期间监听下行数据传输,在定时器T3超时或接收完成下行数据后,进入DRX状态。所述定时器T2的定时时长和定时器T3的定时时长可以是gNB通过广播消息为每个UE配置的;或,gNB通过专用信令为所述UE配置的;或,通过协议预先规定的。其中定时器T2的定时时长和定时器T3的定时时长的确定方式相同或不同。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送任意一个上行数据传输后,启动下行数据传输监听过程。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成任意一个上行数据传输,启动定时器T2,在启动定时器T2运行期间,所述UE不进行下行数据传输监听。
步骤二:当UE识别到定时器T2超时,UE启动定时器T3,在定时器T3运行期间,进入连续接收状态,监听下行数据传输。如果未接收到下行数据传输,并且定时器T3超时,则进入DRX状态,如果接收到下行数据传输,进行步骤三。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,重启定时器T3,持续监听下行数据传输,并在每次接收到新的继续监听下行数据传输的指示信息时重启定时器T3,在定时器T3运行期间监听下行数据传输,定时器T3超时或接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;上述分支2中定时器T4可以与定时器T3相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,准备向UE发送下行数据,启动定时器T2。
步骤二:当gNB识别到定时器T2超时,启动定时器T3,在定时器T3运行期间,有下行数据需要发送给UE时,向UE发送下行数据,进行步骤三,或在定时器T3超时后认为UE进入DRX状态。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB 可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,每次发送继续监听下行数据传输的指示信息后重启定时器T3,认为UE在定时器T3运行期间监听下行数据传输,可以在此期间向UE发送下行数据,定时器T1超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;
上述分支中定时器T4可以与定时器T3相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,gNB认为UE在接收完成下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
其次描述本发明中UE在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输后,启动下行数据传输监听的各实施例。
实施例4:
UE在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输后,进入连续接收状态,监听下行数据传输,直至接收到下行数据传输,在接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE在完成上行数据传输后进入连续接收状态,监听下行数据传输,直至接收到下行数据传输,并在接收完成下行数据后进入DRX状态。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送特定业务的任意一个上行数据传输后,启动下行数据传输监听。
所述特定类型的业务可以是gNB通过广播消息为每个UE配置的;也可 以是gNB通过专用信令为所述UE配置的。所述gNB为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID、或LCID、或Flow ID。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输,进入连续接收状态,监听下行数据传输,进行步骤二;或UE在RRC_INACTIVE状态下发送的上行数据的业务类型不允许UE监听下行数据传输,则该UE在发送完所述上行数据后,直接进入DRX状态,不进行步骤二。
步骤二:UE接收到下行数据传输,进行步骤三;否则持续进行下行数据监听。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,持续监听下行数据传输,在下行数据传输传输完成后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,在接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,判断所述上行数据所属的业务是否为允许UE监听下行数据传输的特定业务类型,如果是,则认为UE进入连续接收状态,进行步骤二,否则,认为UR进入DRX状态,不进行步骤二。
步骤二:在有下行数据需要发送给UE时,在任意时刻向UE发送下行数 据。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,认为UE保持在连续接收状态,并在后续向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时,启动或重启定时器T4,定时器T4运行期间gNB可以向UE发送下行数据,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
在该分支中,gNB在T4运行期间可以向UE发送下行数据,认为每次发送下行数据或下行调度命令时UE的定时器T4重启,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,认为UE接收完成下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
实施例5:
UE在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输后,进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输,当所述定时器T1超时或接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE完成上行数据传输后进入连续接收状态,并启动定时器T1,监听下行数据传输,在定时器T1超时或接收完成下行数据后,进入DRX状态。所述定时器T1的定时时长可以是gNB通过广播消息为每个UE配置的;或,gNB通过专用信令为所述UE配置的;或,通过协议预先规定的。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送特定业务的任意一个上行数据传输后,启动下行数据传输监听。
所述特定类型的业务可以是gNB通过广播消息为每个UE配置的,也可以是gNB通过专用信令为所述UE配置的。所述gNB为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID、或LCID、或Flow ID。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输,启动定时器T1,进行步骤二;或UE在RRC_INACTIVE状态下发送的上行数据的业务类型不允许UE监听下行数据传输,则该UE在发送完所述上行数据后,直接进入DRX状态,不进行步骤二。
步骤二:在定时器T1运行期间,进入连续接收状态,监听下行数据传输。,如果未接收到下行数据传输,并且定时器T1超时,则进入DRX状态,如果接收到下行数据传输,进行步骤三。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,重启定时器T1,持续监听下行数据传输,并在每次接收到新的继续监听下行数据传输的指示信息时重启定时器T1,在定时器T1运行期间监听下行数据传输,定时器T1超时或接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时,启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;
上述分支2中定时器T4可以与定时器T1相同,此时分支1和分支2可以合并;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4, 也没有在下行数据传输中指示UE继续监听下行数据传输,接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,判断所述上行数据所属的业务是否为允许UE监听下行数据传输的特定业务类型,如果是,则启动定时器T1,认为UE进入连续接收状态,进行步骤二,否则,认为UR进入DRX状态,不进行步骤二。
步骤二:在定时器T1运行期间,有下行数据需要发送给UE时,向UE发送下行数据,当完成该下行数据传输后进行步骤三,或在定时器T1超时后认为UE进入DRX状态。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,每次发送继续监听下行数据传输的指示信息后重启定时器T1,认为UE在定时器T1运行期间监听下行数据传输,可以在此期间向UE发送下行数据,定时器T1超时认为UE进入DRX状态,不能向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,不能向UE发送下行数据;上述分支2中定时器T4可以与定时器T1相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,gNB认为UE在接收完成下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
实施例6:
UE在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后进入连续接收状态,并在定时器T3的定时时长内监听下行数据传输,当所述定时器T3超时或接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE在完成上行数据传输后,启动定时器T2,在定时器T2运行期间进入DRX状态,定时器T2超时后UE进入连续接收状态,同时启动定时器T3,在定时器T3运行期间监听下行数据传输,在定时器T3超时或接收完成下行数据后,进入DRX状态。其中,所述定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长可以是gNB通过广播消息为每个UE配置的,或,gNB通过专用信令为所述UE配置的;或,通过协议预先规定的。其中定时器T2的定时时长和定时器T3的定时时长的确定方式相同或不同。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送特定业务的任意一个上行数据传输后,启动下行数据传输监听。
所述特定类型的业务可以是gNB通过广播消息为每个UE配置的,也可以是gNB通过专用信令为所述UE配置的。所述gNB为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID、或LCID、或Flow ID。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成特定类型的业务的任意一个上行数据传输,启动定时器T2,在启动定时器T2运行期间,所述UE不监听下行数据传输,进行步骤二;或UE在RRC_INACTIVE状态下发送的上行数据的业务类型不允许UE监听下行数据传输,则该UE在发送完所述上行数据后,直接进入DRX状态,不进行步骤二。
步骤二:当UE识别到定时器T2超时,UE启动定时器T3,在定时器T3运行期间,进入连续接收状态,监听下行数据传输,如果未接收到下行数据传输,并且定时器T3超时,则进入DRX状态,如果接收到下行数据传输, 进行步骤三。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,重启定时器T3,持续监听下行数据传输,并在每次接收到新的继续监听下行数据传输的指示信息时重启定时器T3,在定时器T3运行期间监听下行数据传输,定时器T3超时或接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;上述分支2中定时器T4可以与定时器T3相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,判断所述上行数据所属的业务是否为允许UE监听下行数据传输的特定业务类型,如果是,则准备向UE发送下行数据,启动定时器T2。
步骤二:当gNB识别到定时器T2超时,启动定时器T3,在定时器T3运行期间,有下行数据需要发送给UE时,向UE发送下行数据,当完成该下行数据传输后进行步骤三,或在定时器T3超时后认为UE进入DRX状态。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,每次发送继续监听下行数据传输的指示信息后重启定时器T3,认为UE在定时器 T3运行期间监听下行数据传输,可以在此期间向UE发送下行数据,定时器T3超时认为UE进入DRX状态,不能向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,不能向UE发送下行数据;上述分支中定时器T4可以与定时器T3相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,gNB认为UE在下行数据传输接收后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
再次描述本发明中UE在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输后,启动下行数据传输监听的各实施例。
实施例7:
UE在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输后,进入连续接收状态,监听下行数据传输,直至接收到下行数据传输,在接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE在完成上行数据传输后进入连续接收状态,监听下行数据传输,直至接收到下行数据传输,并在接收完成下行数据后进入DRX状态。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送特定业务的特定上行数据包传输后,启动下行数据传输监听。
其中,所述特定类型的业务可以是gNB通过广播消息为每个UE配置的,也可以是gNB通过专用信令为所述UE配置的。所述gNB为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID、或LCID、或Flow ID。
所述特定上行数据包为需gNB发送对应下行数据传输的上行数据包。即 所述上行数据包是指UE确定随后会有对应下行数据传输的数据包,如UE在确定发送几个TCP上行数据传输后,会接收到下行TCP的ACK的信息。该TCP ACK信息前的上行数据包即为特定上行数据包。所述UE在RRC_INACTIVE状态下进行特定类型的业务的特定上行数据包传输时,在确定时间段内监听下行数据传输之前,UE可以向gNB发送所述UE将进入监听下行数据传输的指示信息。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输,进入连续接收状态,监听下行数据传输,进行步骤二;或UE在RRC_INACTIVE状态下发送的上行数据包不允许UE监听下行数据传输,则该UE在发送完成所述上行数据后,直接进入DRX状态,不进行步骤二。可选的,UE在发送完最后一个特定上行数据包时,向gNB发送所述UE将进入监听下行数据传输的指示信息。
步骤二、UE接收到下行数据传输,进行步骤三,否则持续进行下行数据监听。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,持续监听下行数据传输,在下行数据传输传输完成后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,在接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,判断所述上行数据所属的业务是否为允许UE监听下行数据传输的特定业务类型,如果是,根据UE发送的指示信息或业务特性等隐式方式确定该业务的数据包是否为允许UE监听下行数据传输的特定业务类型的特定数据包,如果是,则认为UE进入连续接收状态,进行步骤二,否则,认为UR进入DRX状态,不进行步骤二。
步骤二:在有下行数据需要发送给UE时,在任意时刻向UE发送下行数据。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,认为UE保持连续接收状态并在后续向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
在该分支中,gNB在T4运行期间可以向UE发送下行数据,认为每次发送下行数据或下行调度命令时定时器T4重启,定时器T4超时认为UE进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据;或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,认为UE接收完下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
实施例8:
UE在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输后,进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输,当所述定时器T1超时或接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE完成上行数据传输后进入连续接收状态,并启动定时器T1,监听下行数据传输,在定时器T1超时或接收完成下行数据后,进入DRX状态。其中,所述定时器T1的定时时长可以是gNB通过广播消息为每个UE配置的,或,gNB通过专用信令为所述UE配置的,或,通过协议预先规定的。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送特定业务的特定上行数据包传输后,启动下行数据传输监听。
所述特定类型的业务可以是gNB通过广播消息为每个UE配置的,也可以是gNB通过专用信令为所述UE配置的。所述gNB为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID、或LCID、或Flow ID。
所述特定上行数据包为需gNB发送对应下行数据传输的上行数据包。即所述上行数据包是指UE确定随后会有对应下行数据传输的数据包,如UE在确定发送几个TCP上行数据传输后,会接收到下行TCP ACK的信息。该TCP ACK信息前的上行数据包即为特定上行数据包。所述UE在RRC_INACTIVE状态下进行特定类型的业务的特定上行数据包传输时,在确定时间段内监听下行数据传输之前,UE可以向gNB发送所述UE将进入监听下行数据传输的指示信息。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输,启动定时器T1,进行步骤二;或UE在RRC_INACTIVE状态下发送的上行数据包不允许UE监听下行数据传输,则该UE在发送完所述上行数据后,直接进入DRX状态,不进行步骤二。可选的,UE在发送完最后一个特定上行数据包时,向gNB发送所述UE将进入监听下行数据传输的指示信息。
步骤二:在定时器T1运行期间,进入连续接收状态,监听下行数据传输。如果未接收到下行数据传输,并且定时器T1超时,则进入DRX状态,如果 接收到下行数据传输,进行步骤三。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,重启定时器T1,持续监听下行数据传输,并在每次接收到新的继续监听下行数据传输的指示信息时重启定时器T1,在定时器T1运行期间监听下行数据传输,定时器T1超时或接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;上述分支2中定时器T4可以与定时器T1相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,判断所述上行数据所属的业务是否为允许UE监听下行数据传输的特定业务类型,如果是,根据UE发送的指示信息或业务特性等隐式方式确定该业务的数据包是否为允许UE监听下行数据传输的特定业务类型的特定数据包,如果是,则启动定时器T1,认为UE进入连续接收状态,进行步骤二,否则,认为UR进入DRX状态,不进行步骤二。
步骤二:在定时器T1运行期间,有下行数据需要发送给UE时,向UE发送下行数据,当完成该下行数据传输后进行步骤三,或在定时器T1超时后认为UE进入DRX状态。在UE维持DRX状态期间不能向UE发送下行数据。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但 启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,每次发送继续监听下行数据传输的指示信息后重启定时器T1,认为UE在定时器T1运行期间监听下行数据传输,可以在此期间向UE发送下行数据,定时器T1超时认为UE进入DRX状态,不能向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,不能向UE发送下行数据;上述分支2中定时器T4可以与定时器T1相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,认为UE在接收完下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
实施例9:
UE在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后进入连续接收状态,并在定时器T3的定时时长内监听下行数据传输,当所述定时器T3超时或接收完成下行数据后,进入DRX状态。
在本发明实施例中UE监听下行数据时间段的确定方式包括:UE在完成上行数据传输后,启动定时器T2,在定时器T2运行期间即定时器T2的定时时长进入DRX状态,定时器T2超时后UE进入连续接收状态,同时启动定时器T3,在定时器T3运行期间监听下行数据传输,在定时器T3超时或接收完成下行数据后,进入DRX状态。其中,所述定时器T2和定时器T3的定时时长可以是gNB通过广播消息为每个UE配置的;或,gNB通过专用信令为所述UE配置的;或,通过协议预先规定的。其中定时器T1的定时时长、定时器T2的定时时长和定时器T3的定时时长的确定方式相同或不同。
UE启动下行数据传输监听过程的条件是:UE在RRC_INACTIVE状态下发送特定业务的特定上行数据包传输后,启动下行数据传输监听。
所述特定类型的业务可以是gNB通过广播消息为每个UE配置的,也可以是gNB通过专用信令为所述UE配置的。所述gNB为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或RB ID、或LCID、或Flow ID。
所述特定上行数据包为需gNB发送对应下行数据传输的上行数据包。即所述上行数据包是指UE确定随后会有对应下行数据传输的数据包,如在确定发送几个TCP上行数据传输后,会接收到下行TCP ACK的信息。该TCP ACK信息前的上行数据包即为特定上行数据包。所述UE在RRC_INACTIVE状态下进行特定类型的业务的特定上行数据包传输时,在确定时间段内监听下行数据传输之前,UE可以向gNB发送所述UE将进入监听下行数据传输的指示信息。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:在RRC_INACTIVE状态下完成特定类型的业务的特定上行数据包传输,启动定时器T2,在定时器T2运行期间,所述UE不监听下行数据传输进行步骤二;或UE在RRC_INACTIVE状态下发送的上行数据包不允许UE监听下行数据传输,则该UE在发送完所述上行数据后,直接进入DRX状态,不进行步骤二。可选的,UE在发送完最后一个特定上行数据包时,向gNB发送所述UE将进入监听下行数据传输的指示信息。
步骤二:当UE识别到定时器T2超时,UE启动定时器T3,在定时器T3运行期间,进入连续接收状态,监听下行数据传输。如果未接收到下行数据传输,并且定时器T3超时,则进入DRX状态,如果接收到下行数据传输,进行步骤三。
步骤三包括以下并列的分支:
分支1:如果gNB没有为UE配置持续监听下行数据传输的定时器T4,UE接收到gNB发送的继续监听下行数据传输的指示信息,重启定时器T3, 持续监听下行数据传输,并在每次接收到新的继续监听下行数据传输的指示信息时重启定时器T3,在定时器T3运行期间监听下行数据传输,定时器T3超时或接收完成下行数据后进入DRX状态;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,UE在接收到下行数据传输或下行调度命令时启动定时器T4,并在每次接收到新的下行数据传输或下行调度命令时重启定时器T4,在定时器T4运行期间监听下行数据传输,定时器T4超时进入DRX状态;上述分支2中定时器T4可以与定时器T3相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,接收完成下行数据后,UE直接进入DRX状态。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:接收完成UE传输的上行数据,判断所述上行数据所属的业务是否为允许UE监听下行数据传输的特定业务类型,如果是,根据UE发送的指示信息或业务特性等隐式方式确定该业务的数据包是否为允许UE监听下行数据传输的特定业务类型的特定数据包,如果是,则准备向UE发送下行数据,启动定时器T2。
步骤二:当gNB识别到定时器T2超时,启动定时器T3,在定时器T3运行期间,有下行数据需要发送给UE时,向UE发送下行数据,当完成该下行数据传输后进行步骤三,或在定时器T3超时后认为UE进入DRX状态。在UE维持DRX状态期间不能向UE发送下行数据。
步骤三包括以下并列的分支:
分支1:如果没有为UE配置了持续监听下行数据传输的定时器T4,但启动了gNB在下行数据传输中指示UE持续监听下行数据传输的功能,gNB可以在下行数据传输中向UE发送继续监听下行数据传输的指示信息,每次发送继续监听下行数据传输的指示信息后重启定时器T3,认为UE在定时器T3运行期间监听下行数据传输,可以在此期间向UE发送下行数据,定时器 T3超时认为UE进入DRX状态,不能向UE发送下行数据;或,
分支2:如果gNB为UE配置了持续监听下行数据传输的定时器T4,每次发送下行数据或下行调度命令时启动或重启定时器T4,定时器T4运行期间gNB可以为UE发送下行数据,定时器T4超时认为UE进入DRX状态,不能向UE发送下行数据;上述分支中定时器T4可以与定时器T3相同,此时分支1和分支2可以合并,或,
分支3:如果gNB既没有为UE配置持续监听下行数据传输的定时器T4,也没有在下行数据传输中指示UE继续监听下行数据传输,gNB认为UE在接收完下行数据后进入DRX状态,在UE维持DRX状态期间不能向UE发送下行数据。
接下来描述本发明中UE在RRC_INACTIVE状态下接收完成下行数据的各实施例。
实施10:
UE接收完成下行数据具体为接收gNB发送的寻呼UE的下行通知消息,并接收与该通知消息一起发送的下行数据。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:UE接收通知消息,该通知消息中携带RRC_INACTIVE UE ID,通知UE接收下行数据。
步骤二(可选):UE向gNB发送反馈消息,反馈消息具体为随机接入请求preamble或与该通知消息对应物理资源位置和对应反馈序列的ACK反馈。
步骤三:UE接收与通知消息一起发送的,或者在通知消息后对应资源位置发送的下行数据传输。
步骤四(可选):UE向gNB发送反馈消息,反馈消息具体为随机接入请求preamble或与该通知消息对应物理资源位置和对应反馈序列的ACK反馈。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:gNB在UE最后发送上行传输的小区内,或UE最后反馈的位置小区内,向UE侧发送通知消息(notification),该通知消息中携带 RRC_INACTIVE UE ID,通知UE接收下行数据传输。
步骤二(可选):接收UE向gNB发送的反馈消息,反馈消息具体为随机接入请求preamble或与该通知消息对应物理资源位置和对应反馈序列的ACK反馈。
步骤三:gNB向UE发送下行数据,具体为与通知消息一起发送,或者在通知消息后对应资源位置发送。
步骤四(可选):接收UE发送的反馈消息,反馈消息具体为随机接入请求preamble或与该通知消息对应物理资源位置和对应反馈序列的ACK反馈。
步骤五:如果没有接收到UE发送的反馈消息,或者gNB采用固定发送次数的方式,回到步骤一,继续向UE发送下行数据,直至接收到UE发送的反馈消息,确认下行数据传输成功,或确认UE进入DRX状态,或达到最大传输次数,则不再向UE发送下行数据。
实施例11:
UE接收完成下行数据具体为接收gNB发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:UE接收下行调度命令:物理下行控制信道(Physical Downlink Control Channel,PDCCH))(NR-PDCCH),该调度命令中携带针对全部RRC_INACTIVE UE的公共RNTI,UE根据该调度命令接收下行数据传输,解析协议数据单元(MAC PDU),该MAC PDU中包含MAC CE和下行数据,UE解析MAC CE中的UE ID,判断解析出的UE ID是否为该UE的RRC_INACTIVE UE ID,如果是该UE的RRC_INACTIVE UE ID,则接收该MAC PDU中的下行数据部分。
步骤二(可选):UE向gNB发送反馈消息,反馈消息具体为随机接入请求preamble或与该调度命令或下行数据传输对应资源位置上发送的和对应反 馈序列的ACK反馈。
步骤三:如果UE没有成功接收下行数据传输,在下行数据监听时间段内持续监听下行数据传输。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:gNB在UE最后发送上行传输的小区内,或UE最后反馈的位置小区内,向UE发送下行调度命令(NR-PDCCH)和下行数据传输,该下行调度命令携带RRC_INACTIVE UE公共的RNTI,该下行数据传输组织的MAC PDU中包含MAC CE和下行数据,MAC CE中包含RRC_INACTIVE UE ID,下行数据部分为向该UE发送的下行数据。
步骤二(可选):接收UE的反馈消息,反馈消息具体为随机接入请求preamble或与该调度命令或下行数据传输对应的资源位置上发送的对应反馈序列的ACK反馈。
步骤三:如果没有接收到UE发送的确认反馈,或者gNB采用固定发送次数的方式,回到步骤一,继续向UE发送下行数据,直至接收到UE发送的反馈消息,确认下行数据传输成功,或确认UE进入DRX状态,或达到最大传输次数,则不再向UE发送下行数据。
实施例12:
UE接收完成下行数据具体为接收gNB发送的下行调度命令,判断所述下行调度命令中携带的UE的C-RNTI是否与自身的C-RNTI相同,如果是,接收所述下行调度命令所调度的下行数据传输。
在本发明实施例中对于UE侧,该UE进行的操作包括以下步骤:
步骤一:UE接收下行调度命令(NR-PDCCH),该下行调度命令携带UE的C-RNTI,UE根据该C-RNTI确定该下行数据是发送给自己的,并接收该调度命令对应的下行数据传输。
步骤二(可选):UE向gNB发送反馈消息,反馈消息具体为随机接入请求preamble或与该调度命令或下行数据传输对应资源位置上发送的和对应反馈序列的ACK反馈。
步骤三:如果UE没有成功接收下行数据传输,在下行数据监听时间段内持续监听下行数据传输。
在本发明实施例中对于gNB,gNB进行的操作包括以下步骤:
步骤一:gNB在UE最后发送上行传输的小区内,或UE最后反馈的位置小区内,向UE发送下行调度命令(NR-PDCCH)和下行数据传输,该下行调度命令携带UE的C-RNTI,下行数据传输中包含该UE发送的下行数据。
步骤二(可选):接收UE的反馈消息,反馈消息具体为随机接入请求preamble或与该调度命令或下行数据传输对应的资源位置上发送的对应反馈序列的ACK反馈。
步骤三:如果没有接收到UE发送的确认反馈,或者gNB采用固定发送次数的方式,回到步骤一,继续向UE发送下行数据,直至确认下行数据传输成功,或确认UE进入DRX状态,或达到最大传输次数。
图3本发明实施例提供了一种数据传输装置结构图,所述装置包括:
监听模块31,用于UE在不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
接收休眠模块32,用于当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
所述监听模块31,具体用于完成上行数据传输后进入连续接收状态,直至监听到下行数据传输;或,完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输;或,完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后启动定时器T3,进入连续接收状态,并在所述定时器T3的定时时长内监听下行数据传输。
所述监听模块31,还用于接收到下行数据,所述下行数据中包含网络侧指示UE继续进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输;或接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命 令时,重启定时器T4。
所述装置还包括:
发送模块,用于向网络侧发送所述UE将进入监听下行数据传输的指示信息。
所述接收休眠模块32,具体用于接收网络侧发送的寻呼UE的下行通知消息,并接收与该通知消息一起发送的下行数据;或,接收网络侧发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容;或,接收网络侧发送的下行调度命令,判断所述下行调度命令中携带的UE的C-RNTI是否与自身的C-RNTI相同,如果是,接收所述下行调度命令所调度的下行数据传输。
上述数据传输装置位于UE中。
图4本发明实施例提供了一种数据传输装置结构图,所述装置包括:
接收模块41,用于与在RRC_INACTIVE状态下的UE完成上行数据传输;
发送模块42,用于在确定时间段内向UE发送下行数据。
所述发送模块42,具体用于与UE完成上行数据传输后,在任意时刻向UE发送下行数据;或,与UE完成上行数据传输后,启动定时器T1,在定时器T1的定时时长内向UE发送下行数据;或,与UE完成上行数据传输后,启动定时器T2,当所述定时器T2超时后启动定时器T3,在所述定时器T3的定时时长内向UE发送下行数据。
所述发送模块42,还用于向UE发送指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内向UE发送下行数据;或在发送下行数据或下行调度命令后,启动定时器T4,并在发送新的下行数据或下行调度命令时,重启定时器T4。
所述接收模块41,还用于接收所述UE发送的所述UE将进入监听下行数据传输的指示信息。
所述发送模块42,具体用于向UE发送寻呼UE的下行通知消息,并与该通知消息一起发送下行数据;或,向UE发送下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,通过该下行调度命令向UE调度下行数据传输,其中,该下行数据传输中携带UE ID信息和下行数据内容;或,向UE发送下行调度命令,通过该下行调度命令向UE调度下行数据传输,其中,所述下行调度命令中携带UE的C-RNTI。
上述数据传输装置位于网络侧,具体的可以位于gNB中。
图5为本发明实施例提供的一种数据传输***,所述***包括应用于终端51的数据传输装置和应用于网络侧设备52的数据传输装置。
本发明实施例公开了一种数据传输方法、装置及***,所述方法包括:UE在RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;当所述确定时间段超时或接收完成下行数据后,进入DRX状态。由于UE在完成上行数据传输后,可以在确定时间段内监听下行数据,当该确定时间段超时或接收完成下行数据后,进入DRX状态。可以使gNB及时向在RRC_INACTIVE状态下的UE传输下行数据,避免造成后续数据传输的延迟。
本发明实施例公开了一种UE,具体如下:
图6为UE结构示意图,如图所示,用户设备包括:
收发机610,用于在处理器600的控制下接收和发送数据,执行下列过程:
进行上下行数据传输;
处理器600,用于读取存储器620中的程序,执行下列过程:
在UE不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
实施中,所述在确定时间段内监听下行数据传输包括:
在所述UE完成上行数据传输后进入连续接收状态,直至监听到下行数据 传输;或,
在所述UE完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输;或,
在所述UE完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后启动定时器T3,在UE进入连续接收状态,并在所述定时器T3的定时时长内监听下行数据传输。
实施中,所述在确定时间段内监听下行数据传输还包括:
在所述UE接收到下行数据,所述下行数据中包含网络侧指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输;或,
在所述UE接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命令时,重启定时器T4。
实施中,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长采用以下方式确定:
网络侧通过广播消息为所述UE配置;或,
网络侧通过专用信令为所述UE配置;或,
通过协议预先规定。
实施中,所述上行数据传输包括:
任意一个上行数据传输;或,
特定类型的业务的任意一个上行数据传输;或,
特定类型的业务的特定上行数据包传输;或,
在预设时间段内的上行数据传输。
实施中,所述特定类型的业务为网络侧通过广播消息为所述UE配置的,或,网络侧通过专用信令为所述UE配置的。
实施中,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
实施中,所述预设时间段为网络侧通过广播消息为所述UE配置的;或,
网络侧通过专用信令为所述UE配置的;或,
UE在特定业务业务传输激活和有数据传输期间。
实施中,所述网络侧为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或无线承载标识RB ID、或逻辑信道标识LCID、或流标识Flow ID。
实施中,在所述UE在RRC_INACTIVE状态下进行上行数据包传输时,在确定时间段内监听下行数据传输之前,所述方法还包括:
向网络侧发送所述UE将进入监听下行数据传输的指示信息。
实施中,所述接收完成下行数据包括:
接收网络侧发送的寻呼UE的下行通知消息,并接收与该通知消息一起发送的下行数据;或,
接收网络侧发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容;或,
接收网络侧发送的下行调度命令,判断所述下行调度命令中携带的UE的C-RNTI是否与自身的C-RNTI相同,如果是,接收所述下行调度命令所调度的下行数据传输。
其中,在图6中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口630还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理,存储器620可以存储处理器600在执行操作时所使用的数据。
本发明实施例公开了一种基站,具体如下:
图7为基站结构示意图,如图所示,基站中包括:
处理器700,用于读取存储器720中的程序,执行下列过程:
确定网络侧是否与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输;
收发机710,用于在处理器700的控制下接收和发送数据,执行下列过程:
在网络侧与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输后,在确定时间段内向UE发送下行数据。
实施中,所述在确定时间段内向UE发送下行数据包括:
在所述网络侧与UE完成上行数据传输后,在任意时刻向UE发送下行数据;或,
在所述网络侧与UE完成上行数据传输后,启动定时器T1,在定时器T1的定时时长内向UE发送下行数据;或,
在所述网络侧与UE完成上行数据传输后,启动定时器T2,当所述定时器T2超时后启动定时器T3,在所述定时器T3的定时时长内向UE发送下行数据。
实施中,所述在确定时间段内向UE发送所述下行数据还包括:
在网络侧向UE发送指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内向UE发送下行数据;或,
在网络侧在发送下行数据或下行调度命令后,启动定时器T4,并在发送新的下行数据或下行调度命令时,重启定时器T4。
实施中,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长为所述网络侧针对所述UE预先配置的,或协议预先规定的。
实施中,所述上行数据包括:
任意一个上行数据;或,
特定类型的业务的任意一个上行数据;或,
特定类型的业务的特定上行数据包;或,
在预设时间段内的上行数据。
实施中,所述特定类型的业务为网络侧针对所述UE预先配置的。
实施中,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
实施中,所述网络侧与在RRC_INACTIVE状态下的UE进行上行数据传输时,所述方法还包括:
接收所述UE发送的所述UE将进入监听下行数据传输的指示信息。
实施中,所述向UE发送下行数据包括:
向UE发送寻呼UE的下行通知消息,并与该通知消息一起发送下行数据;或,
向UE发送下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,通过该下行调度命令向UE调度下行数据传输,其中,该下行数据传输中携带UE ID信息和下行数据内容;或,
向UE发送下行调度命令,通过该下行调度命令向UE调度下行数据传输,其中,所述下行调度命令中携带UE的C-RNTI。
其中,在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器700代表的一个或多个处理器和存储器720代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机710可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器700负责管理总线架构和通常的处理,存储器720可以存储处理器700在执行操作时所使用的数据。
本发明实施例公开了一种计算机设备,包括存储器、处理器及存储在存 储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现UE侧的数据传输方法。具体参见上述实施例。
本发明实施例公开了一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现网络侧的数据传输述方法。具体参见上述实施例。
对于***/装置实施例而言,由于其基本相似于方法实施例,所以描述的比较简单,相关之处参见方法实施例的部分说明即可。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者一个操作与另一个实体或者另一个操作区分开来,而不一定要求或者暗示这些实体或者操作之间存在任何这种实际的关系或者顺序。
本领域内的技术人员应明白,本申请的实施例可提供为方法、***、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全应用实施例、或结合应用和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例做出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (44)

  1. 一种数据传输方法,其特征在于,所述方法包括:
    UE在不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
    当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
  2. 如权利要求1所述的方法,其特征在于,所述在确定时间段内监听下行数据传输包括:
    所述UE完成上行数据传输后进入连续接收状态,直至监听到下行数据传输;或,
    所述UE完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输;或,
    所述UE完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后启动定时器T3,UE进入连续接收状态,并在所述定时器T3的定时时长内监听下行数据传输。
  3. 如权利要求2所述的方法,其特征在于,所述在确定时间段内监听下行数据传输还包括:
    所述UE接收到下行数据,所述下行数据中包含网络侧指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输;或,
    所述UE接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命令时,重启定时器T4。
  4. 如权利要求2或3所述的方法,其特征在于,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长采用以下方式确定:
    网络侧通过广播消息为所述UE配置;或,
    网络侧通过专用信令为所述UE配置;或,
    通过协议预先规定。
  5. 如权利要求1所述的方法,其特征在于,所述上行数据传输包括:
    任意一个上行数据传输;或,
    特定类型的业务的任意一个上行数据传输;或,
    特定类型的业务的特定上行数据包传输;或,
    在预设时间段内的上行数据传输。
  6. 如权利要求5所述的方法,其特征在于,所述特定类型的业务为网络侧通过广播消息为所述UE配置的,或,网络侧通过专用信令为所述UE配置的。
  7. 如权利要求5所述的方法,其特征在于,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
  8. 如权利要求5所述的方法,其特征在于,所述预设时间段为网络侧通过广播消息为所述UE配置的;或,
    网络侧通过专用信令为所述UE配置的;或,
    UE在特定业务业务传输激活和有数据传输期间。
  9. 如权利要求6所述的方法,其特征在于,所述网络侧为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或无线承载标识RB ID、或逻辑信道标识LCID、或流标识Flow ID。
  10. 如权利要求1所述的方法,其特征在于,所述UE在RRC_INACTIVE状态下进行上行数据包传输时,在确定时间段内监听下行数据传输之前,所述方法还包括:
    向网络侧发送所述UE将进入监听下行数据传输的指示信息。
  11. 如权利要求1所述的方法,其特征在于,所述接收完成下行数据包括:
    接收网络侧发送的寻呼UE的下行通知消息,并接收与该通知消息一起发送的下行数据;或,
    接收网络侧发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容;或,
    接收网络侧发送的下行调度命令,判断所述下行调度命令中携带的UE的C-RNTI是否与自身的C-RNTI相同,如果是,接收所述下行调度命令所调度的下行数据传输。
  12. 一种数据传输方法,其特征在于,所述方法包括:
    网络侧与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输后,在确定时间段内向UE发送下行数据。
  13. 如权利要求12所述的方法,其特征在于,所述在确定时间段内向UE发送下行数据包括:
    所述网络侧与UE完成上行数据传输后,在任意时刻向UE发送下行数据;或,
    所述网络侧与UE完成上行数据传输后,启动定时器T1,在定时器T1的定时时长内向UE发送下行数据;或,
    所述网络侧与UE完成上行数据传输后,启动定时器T2,当所述定时器T2超时后启动定时器T3,在所述定时器T3的定时时长内向UE发送下行数据。
  14. 如权利要求13所述的方法,其特征在于,所述在确定时间段内向UE发送所述下行数据还包括:
    网络侧向UE发送指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内向UE发送下行数据;或,
    网络侧在发送下行数据或下行调度命令后,启动定时器T4,并在发送新的下行数据或下行调度命令时,重启定时器T4。
  15. 如权利要求13或14所述的方法,其特征在于,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长为所述网络侧针对所述UE预先配置的,或协议预先规定的。
  16. 如权利要求12所述的方法,其特征在于,所述上行数据包括:
    任意一个上行数据;或,
    特定类型的业务的任意一个上行数据;或,
    特定类型的业务的特定上行数据包;或,
    在预设时间段内的上行数据。
  17. 如权利要求16所述的方法,其特征在于,所述特定类型的业务为网络侧针对所述UE预先配置的。
  18. 如权利要求16所述的方法,其特征在于,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
  19. 如权利要求12所述的方法,其特征在于,所述网络侧与在
    RRC_INACTIVE状态下的UE进行上行数据传输时,所述方法还包括:
    接收所述UE发送的所述UE将进入监听下行数据传输的指示信息。
  20. 如权利要求12所述的方法,其特征在于,所述向UE发送下行数据包括:
    向UE发送寻呼UE的下行通知消息,并与该通知消息一起发送下行数据;或,
    向UE发送下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,通过该下行调度命令向UE调度下行数据传输,其中,该下行数据传输中携带UE ID信息和下行数据内容;或,
    向UE发送下行调度命令,通过该下行调度命令向UE调度下行数据传输,其中,所述下行调度命令中携带UE的C-RNTI。
  21. 一种用户设备,其特征在于,用户设备包括:
    收发机,用于在处理器的控制下接收和发送数据,执行下列过程:
    进行上下行数据传输;
    处理器,用于读取存储器中的程序,执行下列过程:
    在UE不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
    当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
  22. 如权利要求21所述的用户设备,其特征在于,所述在确定时间段内监听下行数据传输包括:
    在所述UE完成上行数据传输后进入连续接收状态,直至监听到下行数据传输;或,
    在所述UE完成上行数据传输后进入连续接收状态,启动定时器T1,在定时器T1的定时时长内监听下行数据传输;或,
    在所述UE完成上行数据传输后,启动定时器T2,在定时器T2的定时时长内进入DRX状态,当所述定时器T2超时后启动定时器T3,在UE进入连续接收状态,并在所述定时器T3的定时时长内监听下行数据传输。
  23. 如权利要求22所述的用户设备,其特征在于,所述在确定时间段内监听下行数据传输还包括:
    在所述UE接收到下行数据,所述下行数据中包含网络侧指示所述UE继续进行下行数据传输监听的信息,重新在所述确定时间段内监听下行数据传输;或,
    在所述UE接收到下行数据或下行调度命令,启动定时器T4,在定时器T4的定时时长内监听下行数据传输,并在接收到新的下行数据或下行调度命令时,重启定时器T4。
  24. 如权利要求22或23所述的用户设备,其特征在于,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长采用以下方式确定:
    网络侧通过广播消息为所述UE配置;或,
    网络侧通过专用信令为所述UE配置;或,
    通过协议预先规定。
  25. 如权利要求21所述的用户设备,其特征在于,所述上行数据传输包括:
    任意一个上行数据传输;或,
    特定类型的业务的任意一个上行数据传输;或,
    特定类型的业务的特定上行数据包传输;或,
    在预设时间段内的上行数据传输。
  26. 如权利要求25所述的用户设备,其特征在于,所述特定类型的业务为网络侧通过广播消息为所述UE配置的,或,网络侧通过专用信令为所述UE配置的。
  27. 如权利要求25所述的用户设备,其特征在于,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
  28. 如权利要求25所述的用户设备,其特征在于,所述预设时间段为网络侧通过广播消息为所述UE配置的;或,
    网络侧通过专用信令为所述UE配置的;或,
    UE在特定业务业务传输激活和有数据传输期间。
  29. 如权利要求26所述的用户设备,其特征在于,所述网络侧为所述UE配置特定业务时,在广播消息或专用信令中携带业务类型的标识信息,所述业务类型的标识信息包括:应用层标识、或无线承载标识RB ID、或逻辑信道标识LCID、或流标识Flow ID。
  30. 如权利要求21所述的用户设备,其特征在于,在所述UE在RRC_INACTIVE状态下进行上行数据包传输时,在确定时间段内监听下行数据传输之前,所述方法还包括:
    向网络侧发送所述UE将进入监听下行数据传输的指示信息。
  31. 如权利要求21所述的用户设备,其特征在于,所述接收完成下行数据包括:
    接收网络侧发送的寻呼UE的下行通知消息,并接收与该通知消息一起发 送的下行数据;或,
    接收网络侧发送的下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,接收该下行调度命令调度的下行数据传输,判断该下行数据传输中携带的UE ID信息是否与自身的UE ID信息相同,如果是,解析所述下行数据传输中的下行数据内容;或,
    接收网络侧发送的下行调度命令,判断所述下行调度命令中携带的UE的C-RNTI是否与自身的C-RNTI相同,如果是,接收所述下行调度命令所调度的下行数据传输。
  32. 一种基站,其特征在于,基站包括:
    处理器,用于读取存储器中的程序,执行下列过程:
    确定网络侧是否与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输;
    收发机,用于在处理器的控制下接收和发送数据,执行下列过程:
    在网络侧与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输后,在确定时间段内向UE发送下行数据。
  33. 如权利要求32所述的基站,其特征在于,所述在确定时间段内向UE发送下行数据包括:
    在所述网络侧与UE完成上行数据传输后,在任意时刻向UE发送下行数据;或,
    在所述网络侧与UE完成上行数据传输后,启动定时器T1,在定时器T1的定时时长内向UE发送下行数据;或,
    在所述网络侧与UE完成上行数据传输后,启动定时器T2,当所述定时器T2超时后启动定时器T3,在所述定时器T3的定时时长内向UE发送下行数据。
  34. 如权利要求33所述的基站,其特征在于,所述在确定时间段内向UE发送所述下行数据还包括:
    在网络侧向UE发送指示所述UE继续进行下行数据传输监听的信息,重 新在所述确定时间段内向UE发送下行数据;或,
    在网络侧在发送下行数据或下行调度命令后,启动定时器T4,并在发送新的下行数据或下行调度命令时,重启定时器T4。
  35. 如权利要求33或34所述的基站,其特征在于,所述定时器T1的定时时长、定时器T2的定时时长、定时器T3的定时时长和定时器T4的定时时长为所述网络侧针对所述UE预先配置的,或协议预先规定的。
  36. 如权利要求32所述的基站,其特征在于,所述上行数据包括:
    任意一个上行数据;或,
    特定类型的业务的任意一个上行数据;或,
    特定类型的业务的特定上行数据包;或,
    在预设时间段内的上行数据。
  37. 如权利要求36所述的基站,其特征在于,所述特定类型的业务为网络侧针对所述UE预先配置的。
  38. 如权利要求36所述的基站,其特征在于,所述特定上行数据包为需网络侧发送对应下行数据传输的上行数据包。
  39. 如权利要求32所述的基站,其特征在于,所述网络侧与在RRC_INACTIVE状态下的UE进行上行数据传输时,所述方法还包括:
    接收所述UE发送的所述UE将进入监听下行数据传输的指示信息。
  40. 如权利要求32所述的基站,其特征在于,所述向UE发送下行数据包括:
    向UE发送寻呼UE的下行通知消息,并与该通知消息一起发送下行数据;或,
    向UE发送下行调度命令,该下行调度命令携带RRC_INNACTIVE UE公共的RNTI,通过该下行调度命令向UE调度下行数据传输,其中,该下行数据传输中携带UE ID信息和下行数据内容;或,
    向UE发送下行调度命令,通过该下行调度命令向UE调度下行数据传输,其中,所述下行调度命令中携带UE的C-RNTI。
  41. 一种数据传输装置,其特征在于,所述装置包括:
    监听模块,用于UE在不活跃RRC_INACTIVE状态下完成上行数据传输后,在确定时间段内监听下行数据传输;
    接收休眠模块,用于当所述确定时间段超时或接收完成下行数据后,进入非连续接收DRX状态。
  42. 一种数据传输装置,其特征在于,所述装置包括:
    接收模块,用于与在不活跃RRC_INACTIVE状态下的UE完成上行数据传输;
    发送模块,用于在确定时间段内向UE发送下行数据。
  43. 一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求1至11任一所述方法。
  44. 一种计算机设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求12至20任一所述方法。
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