WO2018145558A1 - Procédé et dispositif de transmission de données - Google Patents

Procédé et dispositif de transmission de données Download PDF

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Publication number
WO2018145558A1
WO2018145558A1 PCT/CN2018/072543 CN2018072543W WO2018145558A1 WO 2018145558 A1 WO2018145558 A1 WO 2018145558A1 CN 2018072543 W CN2018072543 W CN 2018072543W WO 2018145558 A1 WO2018145558 A1 WO 2018145558A1
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Prior art keywords
dci
data
information
sent
base station
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PCT/CN2018/072543
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English (en)
Chinese (zh)
Inventor
邹伟
吴昱民
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中兴通讯股份有限公司
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Publication of WO2018145558A1 publication Critical patent/WO2018145558A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates to the field of communications, and in particular to a data transmission method and apparatus.
  • the fifth-generation mobile communication technology (5th Generation, referred to as 5G) under study by the 3rd Generation Partner Project (3GPP) puts high requirements on control plane delay and requires user equipment.
  • UE User Equipment
  • 3GPP 3rd Generation Partner Project
  • LTE Long Term Evolution
  • the idle state to the connected state need to undergo many processes such as initial random access, connection establishment, registration authentication, etc., which makes it difficult for the UE to enter within 10 ms. Connection state.
  • 3GPP introduced a new UE state, inactive state.
  • the anchor eNB and the core network that the user initially connects will maintain all the connection configurations of the user and process the uplink, so that the user only needs to pass the random access on the air interface.
  • the simple process of completing the air interface configuration can directly enter the connected state.
  • the UE does not configure a Physical Uplink Control Channel (PUCCH) and a Sounding resource in an inactive state, and adopts a measurement and cell selection policy similar to the idle state. Therefore, the inactive user may lose the uplink synchronization during the macro cell movement, that is, the Timing advance used for the uplink transmission may not be used again due to the movement, and must be re-executed by random access or the like. Time advance measurement.
  • PUCCH Physical Uplink Control Channel
  • the uplink direct data transmission may use unlicensed transmission, that is, the base station directly allocates a part of the wireless resources for the transmission of the uplink small data, and the part of the resources may be allocated to a certain UE, or It is allocated to multiple UEs for uplink data transmission; the downlink direct data transmission may adopt a mode in which small data is carried in a paging message.
  • the base station needs to return an ACK (ACKnowledgement) message to inform the user that the uplink data has been successfully received.
  • the receiving end may return some data packets immediately after receiving the uplink data of the UE. Therefore, downlink direct data transmission in an inactive state caused by the uplink is very common. In this case, since the base station has received the uplink data packet before the downlink data transmission, the base station knows that the UE is within its coverage. In this case, some optimized methods can be used to send downlink data.
  • the embodiments of the present disclosure provide a data transmission method and apparatus to solve at least the problem that the downlink data transmission caused by the uplink data cannot be effectively performed in an inactive state in the related art.
  • a data transmission method including: a user equipment UE in an inactive state acquires downlink control information DCI using a specified radio network temporary identifier RNTI value; and the UE performs a receiving base station according to the DCI. The operation of the sent packet.
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE uplink transmission: a time domain location, a frequency domain location.
  • the DCI includes at least one of the following: information about whether the UE is in an inactive state, and information about whether the UE is in a connected state.
  • the method further includes: the UE retransmitting the uplink data by using an unlicensed resource according to the unauthorised sending message, where the non-authorization
  • the sending message includes at least one of the following: the radio resource location information that is not authorized to be sent, the adjustment code selection information that is not authorized to be sent, the uplink power control information that is not authorized to be sent, and the RNTI value information that is used for the downlink response that is not authorized to be sent, and is not authorized.
  • the unlicensed sending message is determined by at least one of: a broadcast channel, a broadcast channel dedicated to a non-active UE, and dedicated radio resource control RRC signaling.
  • the data packet is composed of at least one of the following: a length indication, a UE ID, an ACK information, data information, and a cyclic redundancy check CRC information.
  • the cyclic redundancy check CRC information includes at least one of: a check code for performing CRC check on an entire downlink data block that includes different UE data; and separately providing a CRC check for data portions of different UEs. Check code.
  • a data transmission method including: a base station transmitting downlink control information DCI to a user equipment UE, where the DCI is used by the UE to receive a data packet sent by a base station according to the DCI;
  • the DCI is obtained by temporarily identifying the RNTI value by the specified wireless network.
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE uplink transmission: a time domain location, a frequency domain location.
  • a data transmission apparatus comprising: an acquisition module configured to acquire downlink control information DCI using a specified radio network temporary identifier RNTI value; and a receiving module configured to perform reception according to the DCI The operation of the data packet sent by the base station.
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE uplink transmission: a time domain location, a frequency domain location.
  • the DCI includes at least one of the following: information about whether the UE is in an inactive state, and information about whether the UE is in a connected state.
  • the device further includes: a sending module, configured to: when the UE does not receive the data packet sent by the base station according to the DCI, use the unlicensed resource to resend the uplink data according to the unlicensed sending message, where
  • the unauthorized transmission message includes at least one of the following: radio resource location information that is not authorized to be sent, adjustment code selection information that is not authorized to be sent, uplink power control information that is not authorized to be sent, and RNTI used for downlink response that is not authorized to be sent. Value information, retransmission waiting time for unauthorized transmission, and physical downlink control channel PDCCH listening time for unauthorized transmission.
  • the unlicensed sending message is determined by at least one of: a broadcast channel, a broadcast channel dedicated to a non-active UE, and dedicated radio resource control RRC signaling.
  • the data packet is composed of at least one of the following: a length indication, a UE ID, an ACK information, data information, and a cyclic redundancy check CRC information.
  • the cyclic redundancy check CRC information includes at least one of: a check code for performing CRC check on an entire downlink data block that includes different UE data; and separately providing a CRC check for data portions of different UEs. Check code.
  • a data transmission apparatus including: a sending module, configured to send downlink control information DCI to a user equipment UE, where the DCI is used by the UE to receive, according to the DCI, a base station a data packet; wherein the DCI is obtained by temporarily identifying a RNTI value by a designated wireless network.
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE uplink transmission: a time domain location, a frequency domain location.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • the user equipment UE in the inactive state acquires downlink control information DCI using the specified radio network temporary identifier RNTI value; and the UE performs an operation of receiving the data packet sent by the base station according to the DCI.
  • the storage medium is further configured to store program code for performing the following steps: the base station sends downlink control information DCI to the user equipment UE, where the DCI is used by the UE to receive the data packet sent by the base station according to the DCI; The DCI is obtained by temporarily identifying the RNTI value by the specified wireless network.
  • the user equipment UE in the inactive state acquires the downlink control information DCI by using the specified radio network temporary identifier RNTI value; the UE performs the operation of receiving the data packet sent by the base station according to the DCI, and solves the problem that the related technology cannot be inactive.
  • the state effectively performs the problem of downlink data transmission caused by the uplink data, and achieves the technical effect of efficient transmission of downlink data.
  • FIG. 1 is a block diagram showing the hardware structure of a mobile terminal of a data transmission method according to an embodiment of the present disclosure
  • FIG. 2 is a flow chart of a data transmission method in accordance with an embodiment of the present disclosure
  • FIG. 3 is a flowchart of an inactive state UE performing uplink data transmission and receiving a downlink ACK or data using a common RNTI value, according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of performing uplink data retransmission by an inactive state UE according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a downlink data format in which all inactive state UEs share a CRC check code in the same downlink data block according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a downlink data format in which different inactive state UEs use different CRC check codes in the same downlink data block according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of supporting downlink data formats of different lengths according to an embodiment of the present disclosure.
  • FIG. 8 is a structural block diagram of a data transmission device according to an embodiment of the present disclosure.
  • FIG. 9 is a structural block diagram (1) of a data transmission device according to an embodiment of the present disclosure.
  • FIG. 10 is a flowchart of another data transmission method according to an embodiment of the present disclosure.
  • FIG. 11 is a block diagram showing the structure of another data transmission device according to an embodiment of the present disclosure.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal of a data transmission method according to an embodiment of the present disclosure.
  • mobile terminal 10 may include one or more (only one shown in FIG. 1) processor 102 (processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA.
  • FIG. 1 is merely illustrative and does not limit the structure of the above electronic device.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration than that shown in FIG.
  • the memory 104 can be used to store software programs and modules of application software, such as program instructions/modules corresponding to the data transfer method in the embodiment of the present disclosure, and the processor 102 executes various programs by running software programs and modules stored in the memory 104. Functional application and data processing, that is, the above method is implemented.
  • Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory.
  • memory 104 may further include memory remotely located relative to processor 102, which may be connected to mobile terminal 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Transmission device 106 is for receiving or transmitting data via a network.
  • the above-described network specific example may include a wireless network provided by a communication provider of the mobile terminal 10.
  • the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 can be a Radio Frequency (RF) module for communicating with the Internet wirelessly.
  • NIC Network Interface Controller
  • RF Radio Frequency
  • FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present disclosure. As shown in FIG. 2, the process includes the following steps:
  • Step S202 the user equipment UE in the inactive state acquires the downlink control information DCI using the specified radio network temporary identifier RNTI value;
  • Step S204 the UE performs an operation of receiving a data packet sent by the base station according to the DCI.
  • the application scenario of the foregoing data transmission method includes, but is not limited to, a Long-Term Evolution (LTE) system, in which the user equipment UE in the inactive state uses the specified wireless network.
  • LTE Long-Term Evolution
  • the UE performs the operation of receiving the data packet sent by the base station according to the DCI, and solves the problem that the downlink data transmission caused by the uplink data cannot be effectively performed in the inactive state in the related art, and the problem is achieved.
  • the technical effect of efficient transmission of downlink data is achieved.
  • the technical problem to be solved by the present disclosure is how to effectively perform downlink data transmission caused by uplink data in an inactive state. For this reason, the present disclosure proposes that the UE in the inactive state obtains the downlink data directly from the Physical Downlink Control Channel (PDCCH) by using a public network temporary identifier (RNTI).
  • the downlink control information (Downlink Control Information, DCI for short) is required, and then the UE directly receives the data packet sent by the base station in the Physical Downlink Shared Channel (PDSCH) according to the downlink control information, and keeps the packet in the non- Active state.
  • DCI Downlink Control Information
  • the information of the specific RNTI may be specified by using a protocol, or may be delivered to the UE in a System Information Blocks (SIB) message.
  • SIB System Information Blocks
  • the foregoing specific RNTI may be shared by multiple or all UEs in an inactive state.
  • the specific RNTI may be determined according to a time domain and/or a frequency domain location of a radio resource used by the UE uplink transmission.
  • the specific RNTI decision mode may be specified by a protocol or indicated in a system broadcast message.
  • the information about the specific RNTI may be the same as the original RA-RNTI information of the LTE system. At this time, the base station only needs to indicate in the broadcast information whether the information of the specific RNTI is the same as the RA-RNTI information.
  • the UE does not receive the ACK and/or subsequent data of the base station within a certain time range, and the UE retransmits the uplink data by using the unlicensed resource according to the unlicensed sending information.
  • the UE starts a retransmission timer after sending the uplink data. If the ACK information and/or subsequent data of the base station are still not received after the timer expires, the UE retransmits the uplink data.
  • each UE may include one or more of the following: length indication, UE ID, ACK information, data information, and CRC check information.
  • the base station may provide a CRC check code for performing CRC check on the entire downlink data block including different user data.
  • the base station may separately provide a CRC check code for data portions of different users.
  • subsequent ACK information and/or subsequent data of the downlink data may be sent in an unlicensed transmission resource broadcast by the base station by using an unauthorised transmission manner.
  • subsequent ACK information and/or subsequent data of the downlink data may be sent by a subsequent uplink radio resource configured by the base station in the downlink data part.
  • the UE in the inactive state obtains the downlink control information (DCI) of the downlink data directly from the PDCCH by using the common RNTI, and then the UE directly receives the data packet sent by the base station in the PDSCH according to the downlink control information, and remains inactive. status.
  • DCI downlink control information
  • the UE in the inactive state does not need to frequently switch between the connected state and the inactive state, which saves a lot of signaling overhead.
  • the power consumption of the inactive UE is also reduced.
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE for uplink transmission: a time domain location, a frequency domain location.
  • the above DCI includes at least one of the following: information on whether the UE is in an inactive state, and information on whether the UE is in a connected state.
  • the method further includes the following steps:
  • step S11 the UE retransmits the uplink data by using the unlicensed resource according to the unlicensed sending message, where the unlicensed sending message includes at least one of the following: unauthorized transmitting radio resource location information, and unauthorized sending adjusting code selecting information, The uplink power control information that is authorized to be sent, the RNTI value information used for the unsolicited downlink response, the retransmission waiting time for unauthorized transmission, and the PDCCH listening time for the unlicensed physical downlink control channel.
  • the unlicensed sending message includes at least one of the following: unauthorized transmitting radio resource location information, and unauthorized sending adjusting code selecting information, The uplink power control information that is authorized to be sent, the RNTI value information used for the unsolicited downlink response, the retransmission waiting time for unauthorized transmission, and the PDCCH listening time for the unlicensed physical downlink control channel.
  • the foregoing unlicensed sending message is determined by at least one of the following: a broadcast channel, a broadcast channel dedicated to the inactive UE, and dedicated radio resource control RRC signaling.
  • the foregoing data packet is composed of at least one of the following: a length indication, a UE ID, an ACK information, data information, and a cyclic redundancy check CRC information.
  • the cyclic redundancy check CRC information includes at least one of the following: a check code for performing CRC check on the entire downlink data block including different UE data; and separately providing a CRC check for the data portion of different UEs. Code verification.
  • FIG. 3 is a flow diagram of an inactive state UE performing uplink data transmission and receiving a downlink ACK or data using a common RNTI value, in accordance with an embodiment of the present disclosure. As shown in Figure 3, the specific implementation process is as follows:
  • Step S301 the user entering the inactive state listens to the unlicensed sending information sent by the base station.
  • the information may include one or more of the following: radio resource location information that is not authorized to be sent, adjustment code selection information that is not authorized to be sent, uplink power control information that is not authorized to be sent, and RNTI used for downlink response that is not authorized to be sent. Value information, retransmission waiting time for unauthorized transmission, subsequent PDCCH listening time for unauthorized transmission, and the like.
  • the information can be sent over a broadcast channel.
  • the information may be sent through a broadcast channel dedicated to the Inactive UE.
  • the information may also notify the UE by using dedicated RRC signaling before the UE enters the inactive state.
  • Step S302 The UE sends the uplink data by using the unlicensed resource according to the unlicensed transmission information.
  • Step S303 The base station determines, according to the uplink resource location of the received UE data, an RNTI value used when the public DCI information is subsequently sent, and sends a DCI message.
  • the downlink control information may further include information about a user status.
  • the downlink control information may include information about whether the user is in an inactive state.
  • the downlink control information may include information about whether the user is in a connected state.
  • the information about the specific RNTI may be specified by a protocol, or may be delivered to the UE in an SIB message.
  • the foregoing specific RNTI may be shared by multiple or all UEs in an inactive state.
  • the specific RNTI may be determined according to a time domain and/or a frequency domain location of a radio resource used by the UE uplink transmission.
  • the specific RNTI decision mode may be specified by a protocol or indicated in a system broadcast message.
  • the information about the specific RNTI may be the same as the original RA-RNTI information of the LTE system. At this time, the base station only needs to indicate in the broadcast information whether the information of the specific RNTI is the same as the RA-RNTI information.
  • Step S304 the user receives the ACK information and/or subsequent data of the base station according to the DCI information, and remains in the inactive state.
  • FIG. 4 is a flowchart of uplink data retransmission by an inactive state UE according to an embodiment of the present disclosure. As shown in Figure 4, the specific implementation process is as follows:
  • the user entering the inactive state listens to the unlicensed sending information sent by the base station.
  • the information may include one or more of the following: radio resource location information that is not authorized to be sent, adjustment code selection information that is not authorized to be sent, uplink power control information that is not authorized to be sent, and RNTI used for downlink response that is not authorized to be sent. Value information, retransmission waiting time for unauthorized transmission, subsequent PDCCH listening time for unauthorized transmission, and the like.
  • the information can be sent over a broadcast channel.
  • the information may be sent through a broadcast channel dedicated to the Inactive UE.
  • the information may also notify the UE by using dedicated RRC signaling before the UE enters the inactive state.
  • Step S402 The UE sends the uplink data by using the unlicensed resource according to the unlicensed transmission information.
  • Step S403 The UE does not receive the ACK and/or subsequent data of the base station within a certain time range, and the UE retransmits the uplink data by using the unlicensed resource according to the unlicensed transmission information.
  • the foregoing time range may be a retransmission waiting time for unauthorized transmission, or a subsequent PDCCH listening time for unauthorized transmission.
  • the UE starts a retransmission timer after sending the uplink data. If the ACK information and/or subsequent data of the base station are still not received after the timer expires, the UE retransmits the uplink data.
  • FIG. 5 is a schematic diagram of a downlink data format in which all inactive state UEs share a CRC check code in the same downlink data block according to an embodiment of the present disclosure.
  • the data packets of different target UEs include two parts: a UE ID part; an ACK and a subsequent data part.
  • the data packets of different target UE A and UE B are combined and share the same CRC check code for CRC check.
  • FIG. 6 is a schematic diagram of a downlink data format in which different inactive state UEs use different CRC check codes in the same downlink data block according to an embodiment of the present disclosure.
  • the data packets of different target UEs include three parts: a UE ID part; an ACK and a subsequent data part, and a separate CRC check code. Packets of different target UE A and UE B are sent together, but different UEs use different CRC check codes for CRC check.
  • FIG. 7 is a schematic diagram of supporting downlink data formats of different lengths according to an embodiment of the present disclosure.
  • the data packets of different target UEs include three parts: a packet length indication; a UE ID part; an ACK and a subsequent data part, and a separate CRC check code. Packets of different target UE A and UE B are sent together, but different UEs use different CRC check codes for CRC check. Moreover, the packet lengths of different UEs may be different and indicated in the length indication area.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present disclosure which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present disclosure.
  • a data transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 8 is a structural block diagram of a data transmission apparatus according to an embodiment of the present disclosure. As shown in FIG. 8, the apparatus is applied to a user equipment, including:
  • the obtaining module 82 is configured to obtain the downlink control information DCI by using the specified radio network temporary identifier RNTI value;
  • the receiving module 84 is configured to perform an operation of receiving a data packet sent by the base station according to the DCI.
  • the application scenario of the foregoing data transmission device includes, but is not limited to, a Long-Term Evolution (LTE) system, in which the user equipment UE in the inactive state uses the specified wireless network.
  • LTE Long-Term Evolution
  • the UE performs the operation of receiving the data packet sent by the base station according to the DCI, and solves the problem that the downlink data transmission caused by the uplink data cannot be effectively performed in the inactive state in the related art, and the problem is achieved.
  • the technical effect of efficient transmission of downlink data is achieved.
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE for uplink transmission: a time domain location, a frequency domain location.
  • FIG. 9 is a structural block diagram (1) of a data transmission apparatus according to an embodiment of the present disclosure. As shown in FIG. 9, the apparatus includes, in addition to the module shown in FIG.
  • a sending module 92 configured to retransmit the uplink data by using an unlicensed resource according to the unlicensed sending message, where the UE does not receive the data packet sent by the base station according to the DCI, where the unlicensed sending message includes the following at least One: unauthorised transmission of radio resource location information, unauthorised transmission of adjustment code selection information, unauthorised transmission of uplink power control information, RNTI value information used for unauthorized transmission of downlink responses, retransmission pending for unauthorized transmission Time, the PDCCH listening time of the physical downlink control channel that is not authorized to be sent.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • FIG. 10 is a flowchart of another data transmission method according to an embodiment of the present disclosure. As shown in FIG. 10, the process includes the following steps:
  • Step S1002 The base station sends downlink control information DCI to the user equipment UE, where the DCI is used by the UE to receive a data packet sent by the base station according to the DCI; wherein the DCI is obtained by using a specified radio network temporary identifier RNTI value.
  • the reference scenario of the foregoing data transmission method includes, but is not limited to, a Long-Term Evolution (LTE) system, in which the base station sends downlink control information DCI to the user equipment UE, The UE is configured to receive, according to the DCI, a data packet sent by the base station, where the DCI is obtained by using a specified radio network temporary identifier RNTI value, which solves the problem that the downlink data transmission caused by the uplink data cannot be effectively performed in the inactive state in the related art. The problem has reached the technical effect of efficient transmission of downlink data.
  • LTE Long-Term Evolution
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE uplink transmission: a time domain location, a frequency domain location.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present disclosure which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present disclosure.
  • a data transmission device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 11 is a structural block diagram of another data transmission apparatus according to an embodiment of the present disclosure. As shown in FIG. 11, the apparatus is applied to a base station, including:
  • the sending module 1102 is configured to send downlink control information DCI to the user equipment UE, where the DCI is used by the UE to receive a data packet sent by the base station according to the DCI; wherein the DCI is obtained by using a specified radio network temporary identifier RNTI value.
  • the reference scenario of the foregoing data transmission method includes, but is not limited to, a Long-Term Evolution (LTE) system, in which the base station sends downlink control information DCI to the user equipment UE, The UE is configured to receive, according to the DCI, a data packet sent by the base station, where the DCI is obtained by using a specified radio network temporary identifier RNTI value, which solves the problem that the downlink data transmission caused by the uplink data cannot be effectively performed in the inactive state in the related art. The problem has reached the technical effect of efficient transmission of downlink data.
  • LTE Long-Term Evolution
  • the specified RNTI value is determined by at least one of the following radio resources used by the UE uplink transmission: a time domain location, a frequency domain location.
  • Embodiments of the present disclosure also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the user equipment UE in the inactive state acquires the downlink control information DCI by using the specified radio network temporary identifier RNTI value;
  • the UE performs an operation of receiving a data packet sent by the base station according to the DCI.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the base station sends downlink control information DCI to the user equipment UE, where the DCI is used by the UE to receive the data packet sent by the base station according to the DCI; wherein the DCI is obtained by using a specified radio network temporary identifier RNTI value.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor performs the above steps S1, S2 according to the stored program code in the storage medium.
  • the processor performs the above step S3 according to the stored program code in the storage medium.
  • modules or steps of the present disclosure described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.
  • the present disclosure is applicable to the field of communications, and solves the problem that the downlink data transmission caused by the uplink data cannot be effectively performed in an inactive state in the related art, and achieves the technical effect of efficient transmission of downlink data.

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

Abstract

La présente invention concerne un procédé et un dispositif de transmission de données. Le procédé comprend les étapes suivantes : un équipement d'utilisateur (UE) dans un état inactif obtient des informations de commande de liaison descendante (DCI) au moyen d'une valeur d'identificateur temporaire de réseau radio (RNTI) spécifiée; et, d'après les DCI, l'UE exécute une opération de réception d'un paquet de données envoyé par une station de base. La présente invention résout le problème lié, dans l'état de la technique, à l'impossibilité d'exécuter efficacement une transmission de données de liaison descendante du fait que des données de liaison montante sont dans un état inactif, et peut exécuter efficacement une transmission de données de liaison descendante. (FIG. 2)
PCT/CN2018/072543 2017-02-09 2018-01-15 Procédé et dispositif de transmission de données WO2018145558A1 (fr)

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