WO2016070360A1 - 一种数据包传输装置及方法 - Google Patents

一种数据包传输装置及方法 Download PDF

Info

Publication number
WO2016070360A1
WO2016070360A1 PCT/CN2014/090341 CN2014090341W WO2016070360A1 WO 2016070360 A1 WO2016070360 A1 WO 2016070360A1 CN 2014090341 W CN2014090341 W CN 2014090341W WO 2016070360 A1 WO2016070360 A1 WO 2016070360A1
Authority
WO
WIPO (PCT)
Prior art keywords
data packet
base station
terminal
timer
receiving
Prior art date
Application number
PCT/CN2014/090341
Other languages
English (en)
French (fr)
Inventor
王娟
朱松
于映辉
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/090341 priority Critical patent/WO2016070360A1/zh
Priority to CN201480035961.4A priority patent/CN105850068B/zh
Publication of WO2016070360A1 publication Critical patent/WO2016070360A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the present invention relates to the field of communications, and in particular, to a data packet transmission apparatus and method.
  • NB M2M NarrowBand Machine to Machine
  • the service targeted by the NB M2M system is a small packet service, and the NB M2M system has a single packet processing time and a low transmission rate, the NB The M2M system requires the terminal to have low cost and low power consumption.
  • the transmission of uplink or downlink data packets in the NB M2M system adopts a single-process Hybrid Automatic Repeat Request (HARQ) scheme.
  • the single-process HARQ scheme means that after the transmitting end transmits a data packet to the receiving end, the transmitting end waits for the receiving end to feed back the receiving result of the data packet; if the receiving end receives the data packet successfully, the transmitting end receives the feedback from the receiving end. Receiving the success message of the data packet, the transmitting end continues to transmit the next data packet to be transmitted to the receiving end; if the receiving end fails to receive the data packet, the transmitting end may receive the failure of receiving the data packet fed back by the receiving end. The message, at this time, the sender retransmits the packet to the receiver.
  • HARQ Hybrid Automatic Repeat Request
  • the existing single-process HARQ scheme limits the number of times that the transmitting end retransmits the data packet to the receiving end by the maximum number of retransmissions of the data packet, and the individual data packets are prone to occur. The case where the transmission time is not balanced.
  • the embodiment of the present invention provides a data packet transmission apparatus and method, which are used to solve the problem that the transmission time of each data packet is unbalanced during the uplink or downlink data packet transmission process of the NB M2M system.
  • an embodiment of the present invention provides a data packet transmission apparatus, including:
  • a data packet transmission unit configured to transmit a data packet to the second device
  • a timer management unit configured to set a timer according to a maximum transmission time of the data packet; when the data packet transmission unit transmits the data packet to the second device, start a timer;
  • a feedback processing unit configured to receive a data packet receiving result fed back by the second device after the timer management unit starts the timer, and trigger the data packet transmission when the data packet receiving result is a data packet receiving failure message, and the timer does not time out
  • the unit retransmits the data packet to the second device
  • timer management unit After receiving the timer by the timer management unit, receiving a data packet receiving result fed back by the second device, when the data packet receiving result is a data packet receiving success message, and the timer does not time out, triggering the timer management unit to close the timer ;or
  • the device transmits the packet.
  • the feedback processing unit triggers the data packet transmission unit to retransmit the data packet to the second device, specifically:
  • the feedback processing unit receives the data packet receiving failure message fed back by the second device, where the maximum receiving time of the data packet refers to that the second device receives a data packet. Maximum time;
  • the timer does not time out, and the feedback processing unit triggers the data packet transmission unit to retransmit the data packet to the second device.
  • the second device is a terminal, or the second device is a base station.
  • the feedback processing unit is configured to: when receiving the data packet receiving result fed back by the second device, specifically:
  • the feedback processing unit receives the data packet reception result fed back by the terminal through the physical uplink shared channel PUSCH.
  • the feedback processing unit when receiving the data packet receiving result fed back by the second device, is specifically used to:
  • the feedback processing unit receives the data packet reception result fed back by the base station by using the downlink control information DCI.
  • the device further includes:
  • the resource allocation unit is configured to allocate an uplink resource to the terminal by using the downlink control information DCI in the preset time period after the timer management unit starts the timer, and the uplink resource is used by the terminal to feed back the data packet receiving result to the feedback processing unit.
  • the resource allocation unit allocates the uplink resource to the terminal by using the DCI in the preset duration, and if the feedback processing unit is in the uplink The resource receiving unit does not receive the data packet receiving result fed back by the terminal, and the timer does not time out.
  • the resource allocation unit is further configured to:
  • the resource allocation unit re-allocates the uplink resource to the terminal through the DCI within the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the feedback processing unit.
  • the feedback processing unit is further configured to:
  • the feedback processing unit If the data packet transmitted by the data packet transmission unit to the base station is the last data packet to be transmitted, when the feedback processing unit does not receive the data packet reception result fed back by the base station, and the timer does not time out, the feedback processing unit confirms the base station. Receive the packet successfully and trigger the timer management unit to turn off the timer.
  • the timer management unit sets a timer according to the maximum transmission time of the data packet.
  • the timer management unit starts the timer, that is, the maximum transmission through the data packet.
  • the time limits the time at which the data packet transmission unit transmits the data packet to the second device.
  • the data packet transmission unit retransmits the data packet to the second device during the maximum transmission time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art.
  • the number of packets is limited, and the resulting packet transmission time is not balanced.
  • an embodiment of the present invention provides a data packet transmission apparatus, including:
  • a data packet receiving unit configured to receive a data packet transmitted by the first device
  • a timer management unit configured to set a timer according to a maximum receiving time of the data packet; when the data packet receiving unit receives the data packet transmitted by the first device, start a timer;
  • a feedback processing unit configured to: after the timer management unit starts the timer, feed back a data packet receiving result to the first device, and when the data packet receiving result is a data packet receiving failure message, and the timer does not time out, triggering the data packet receiving unit Receiving a data packet retransmitted by the first device; or
  • the timer management unit After the timer management unit starts the timer, the data packet receiving result is fed back to the first device, and when the data packet receiving result is a data packet receiving success message, and the timer does not time out, the timer management unit is triggered to turn off the timer; or
  • timer management unit starts the timer, feeding back the data packet receiving result to the first device, and when the data packet receiving result is a data packet failure message, and the timer expires, notifying the data packet receiving unit to abandon receiving the first device transmission Packet.
  • the first device is a base station; or the first device is a terminal.
  • the feedback processing unit feeds back the data packet receiving result to the first device, specifically:
  • the feedback processing unit feeds back the data packet reception result to the base station through the physical uplink shared channel PUSCH.
  • the feedback processing unit feeds back the data packet receiving result to the first device, specifically:
  • the feedback processing unit feeds back the data packet reception result to the terminal through the downlink control information DCI.
  • the device further includes:
  • the resource receiving unit is configured to: after the timer management unit starts the timer, receive the uplink resource allocated by the base station by using the downlink control information DCI, and the uplink resource is used by the feedback processing unit to feed back the data packet receiving result to the base station.
  • the resource receiving unit receives, by using the DCI, the uplink resource allocated by the base station for the preset time duration. After the base station does not receive the data packet receiving result fed back by the feedback processing unit on the uplink resource, the resource allocation unit is further configured to:
  • the resource receiving unit receives the uplink resource that the base station re-allocates through the DCI for a preset duration, and the uplink resource is used by the feedback processing unit to feed back the data packet receiving result to the base station.
  • the data packet receiving unit is used.
  • the feedback processing unit does not need to feed back the data packet receiving success message to the terminal.
  • the timer management unit sets a timer according to the maximum receiving time of the data packet.
  • the timer management unit starts a timer, that is, receives the maximum data packet. The time limits the time when the data packet receiving unit receives the data packet.
  • the data packet receiving unit fails to receive the data packet, the data packet receiving unit receives the data packet retransmitted by the first device within the maximum receiving time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art.
  • the number of packets is limited, and the resulting packet transmission time is not balanced.
  • an embodiment of the present invention provides a data packet transmission method, including:
  • the first device sets a timer according to a maximum transmission time of the data packet
  • the first device When the first device transmits the data packet to the second device, the first device starts a timer
  • the first device receives, by the first device, a data packet receiving result that is sent by the second device, when the data packet receiving result is a data packet receiving failure message, and the timer does not time out, the first device retransmits the data packet to the second device;
  • the first device turns off the timer;
  • the first device receives the data packet receiving result fed back by the second device, and when the data packet receiving result is a data packet receiving failure message, and the timer expires, the first device abandons transmitting the data packet to the second device.
  • the first device receives the second device
  • the data packet received by the first device retransmits the data packet to the second device, where the data packet receiving result is a data packet receiving failure message, and the timer does not time out, including:
  • the first device receives the data packet receiving failure message fed back by the second device, where the maximum receiving time of the data packet refers to the second device receiving the data packet. Maximum time;
  • the timer does not time out, and the first device retransmits the data packet to the second device.
  • the second device is a terminal
  • the second device is a base station.
  • the first device when the first device is a base station, and the second device is a terminal, the first device receives the data packet receiving result that is sent by the second device, and includes:
  • the base station receives the data packet reception result fed back by the terminal through the physical uplink shared channel PUSCH.
  • the first device when the first device is the terminal and the second device is the base station, the first device receives the data packet receiving result that is fed back by the second device, and includes:
  • the terminal receives the data packet reception result fed back by the base station by using the downlink control information DCI.
  • the method further includes:
  • the base station allocates uplink resources to the terminal by using the downlink control information DCI for a preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the method further includes:
  • the base station re-allocates the uplink resource to the terminal through the DCI in the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the method further includes:
  • the first device sets a timer according to the maximum transmission time of the data packet.
  • the first device starts the timer, that is, the maximum transmission time of the data packet is The time when a device transmits a data packet to the second device is limited.
  • the first device retransmits the data packet to the second device during the maximum transmission time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art.
  • the number of packets is limited, and the resulting packet transmission time is not balanced.
  • an embodiment of the present invention provides a data packet transmission method, including:
  • the second device sets a timer according to a maximum receiving time of the data packet
  • the second device When the second device receives the data packet transmitted by the first device, the second device starts a timer
  • the second device feeds back the data packet receiving result to the first device, and when the data packet receiving result is a data packet receiving failure message, and the timer does not time out, the second device receives the data packet retransmitted by the first device; or
  • the second device feeds back the data packet receiving result to the first device, and when the data packet receiving result is a data packet receiving success message, and the timer does not time out, the second device turns off the timer; or
  • the second device feeds back the data packet receiving result to the first device.
  • the data packet receiving result is a data packet failure message, and the timer expires, the second device gives up receiving the data packet transmitted by the first device.
  • the first device is a base station
  • the first device is a terminal.
  • the second device feeds back the data packet receiving result to the first device, including:
  • the terminal feeds back the data packet reception result to the base station through the physical uplink shared channel PUSCH.
  • the second device feeds back the data packet receiving result to the first device, including:
  • the base station feeds back the data packet reception result to the terminal through the downlink control information DCI.
  • the method further includes:
  • the terminal receives the uplink resource allocated by the base station by using the downlink control information DCI for the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the terminal receives the uplink resource allocated by the base station by using the DCI in the preset duration, if the base station is in the uplink The data packet receiving result is not received by the terminal, and the method further includes:
  • the terminal receives the uplink resource re-allocated by the base station through the DCI in the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the data packet transmitted by the terminal received by the base station is the last data packet to be received, and then the base station When the data packet transmitted by the receiving terminal is successful, the base station does not need to feed back the data packet receiving success message to the terminal.
  • the timer is set by the second device according to the maximum receiving time of the data packet.
  • the second device receives the data packet transmitted by the first device
  • the second device starts the timer, that is, the maximum receiving time of the data packet.
  • the time when the second device receives the data packet is restricted.
  • the second device fails to receive the data packet, the second device receives the data packet retransmitted by the first device within the maximum receiving time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art. The number of packets is limited, and the resulting packet transmission time is not balanced.
  • FIG. 1 is a schematic structural diagram of a data packet transmission apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a data packet transmission apparatus according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a data packet transmission method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of a data packet transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a downlink data packet transmission method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of an uplink data packet transmission method according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a DCI interval period of downlink control information according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a data packet transmission apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a data packet transmission apparatus according to an embodiment of the present invention.
  • the embodiment of the present invention provides a data packet transmission apparatus and method, which are used to solve the problem that the transmission time of each data packet is unbalanced during the uplink or downlink data packet transmission process of the NB M2M system.
  • the number of times that the transmitting end retransmits the data packet to the receiving end is limited by the maximum number of retransmissions of the data packet, that is, when the receiving end receives the data packet retransmitted by the transmitting end, the transmitting end fails to transmit to the receiving end.
  • the transmitting end relinquishes retransmission of the data packet to the receiving end. Due to the limited frequency resources in the NB M2M system, the transmission time of each data packet is greatly affected by the channel quality. Therefore, a certain packet transmission time is long, and other data packets have a short transmission time. Retransmission is still limited by the maximum number of retransmissions, and the maximum transmission time of each packet may be unbalanced.
  • the time when the transmitting end transmits the data packet to the receiving end is limited by the maximum transmission time of the data packet.
  • the transmitting end retransmits the data to the receiving end during the maximum transmission time of the data packet. package. Therefore, in the process of transmitting the uplink or downlink data packet of the NB M2M system, the embodiment of the present invention balances the transmission time of each data packet; and overcomes the retransmission of the transmitting end to the receiving end by the maximum number of retransmissions of the data packet in the prior art. The number of packets is limited, and the resulting packet transmission time is not balanced.
  • an embodiment of the present invention provides a data packet transmission apparatus, and the apparatus shown in FIG. 1 supports the method shown in FIG. 3, and the apparatus includes:
  • a data packet transmission unit 11 configured to transmit a data packet to the second device
  • a timer management unit 12 configured to set a timer according to a maximum transmission time of the data packet; when the data packet transmission unit 11 transmits the data packet to the second device, start a timer;
  • the feedback processing unit 13 is configured to: after the timer management unit 12 starts the timer, receive the data packet receiving result fed back by the second device, and trigger the data when the data packet receiving result is a data packet receiving failure message, and the timer does not time out.
  • the packet transmission unit 11 retransmits the data packet to the second device; or
  • the triggering timer management unit 12 After receiving the timer by the timer management unit 12, receiving the data packet receiving result fed back by the second device, when the data packet receiving result is a data packet receiving success message, and the timer is not timed out, the triggering timer management unit 12 is turned off. Timer; or
  • the notification data packet transmitting unit 11 After receiving the timer by the timer management unit 12, receiving the data packet receiving result fed back by the second device, when the data packet receiving result is a data packet receiving failure message, and the timer expires, the notification data packet transmitting unit 11 gives up the packet. The second device transmits the data packet.
  • the feedback processing unit 13 triggers the data packet transmission unit 11 to retransmit the data packet to the second device, it is specifically used to:
  • the feedback processing unit 13 receives the data packet receiving failure message fed back by the second device, where the maximum receiving time of the data packet refers to the second device receiving a data packet. Maximum time allowed;
  • the timer does not time out, and the feedback processing unit 13 triggers the packet transmission unit 11 to retransmit the data packet to the second device.
  • the second device is a terminal, or the second device is a base station.
  • the feedback processing unit 13 is configured to: when receiving the data packet receiving result fed back by the second device, specifically:
  • the feedback processing unit 13 receives the number of feedbacks from the terminal through the physical uplink shared channel PUSCH According to the package receiving results.
  • the feedback processing unit 13 is configured to: when receiving the data packet receiving result fed back by the second device, specifically:
  • the feedback processing unit 13 receives the data packet reception result fed back by the base station through the downlink control information DCI.
  • the device further includes:
  • the resource allocation unit 14 is configured to allocate an uplink resource to the terminal by using the downlink control information DCI within a preset duration after the timer management unit 12 starts the timer, and the uplink resource is used by the terminal to feed back the data packet receiving result to the feedback processing unit 13.
  • the feedback processing unit 13 does not receive the data packet receiving result fed back by the terminal on the uplink resource, and the timer does not time out, and the resource allocation is performed.
  • Unit 14 is also used to:
  • the resource allocation unit 14 re-allocates the uplink resource to the terminal through the DCI within the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the feedback processing unit 14.
  • the feedback processing unit 13 is further configured to:
  • the feedback processing unit 13 If the data packet transmitted by the data packet transmission unit 11 to the base station is the last data packet to be transmitted, when the feedback processing unit 13 does not receive the data packet reception result fed back by the base station, and the timer does not time out, the feedback processing unit 13 confirming that the base station receives the data packet successfully, and triggers the timer management unit 12 to turn off the timer.
  • the timer management unit 12 sets a timer according to the maximum transmission time of the data packet, when the data When the packet transmission unit 11 transmits a data packet to the second device, the timer management unit 12 starts a timer, that is, limits the time for the data packet transmission unit 11 to transmit the data packet to the second device by the maximum transmission time of the data packet, when the second When the device fails to receive the data packet, the data packet transmission unit 11 retransmits the data packet to the second device during the maximum transmission time of the data packet.
  • the transmission time of each data packet is balanced; and the transmission of the maximum number of retransmissions of the data packet is overcome in the prior art.
  • the number of times the terminal retransmits the data packet to the receiving end is limited, and the resulting transmission time of each data packet is not balanced.
  • an embodiment of the present invention provides a data packet transmission apparatus, and the apparatus shown in FIG. 2 supports the method shown in FIG. 4, and the apparatus includes:
  • a data packet receiving unit 21 configured to receive a data packet transmitted by the first device
  • a timer management unit 22 configured to set a timer according to a maximum receiving time of the data packet; when the data packet receiving unit 21 receives the data packet transmitted by the first device, start a timer;
  • the feedback processing unit 23 is configured to: after the timer management unit 22 starts the timer, feed back the data packet receiving result to the first device, and trigger the data packet receiving when the data packet receiving result is a data packet receiving failure message and the timer does not time out.
  • Unit 21 receives the data packet retransmitted by the first device; or
  • the timer management unit 22 After the timer management unit 22 starts the timer, the data packet receiving result is fed back to the first device.
  • the data packet receiving result is a data packet receiving success message, and the timer does not time out, the timer management unit 22 is triggered to turn off the timing. Or;
  • the data packet receiving result is fed back to the first device.
  • the notification data packet receiving unit 21 abandons the first receiving. The packet transmitted by the device.
  • the first device is a base station; or the first device is a terminal.
  • the feedback processing unit 23 feeds back the data packet receiving result to the first device, it is specifically used to:
  • the feedback processing unit 23 feeds back the packet reception result to the base station through the physical uplink shared channel PUSCH.
  • the feedback processing unit 23 feeds back the data packet receiving result to the first device, it is specifically used to:
  • the feedback processing unit 23 feeds back the data packet reception result to the terminal through the downlink control information DCI.
  • the device further includes:
  • the resource receiving unit 24 is configured to: after the timer management unit 22 starts the timer, at the preset time
  • the uplink resource is allocated to the uplink resource allocated by the base station by using the downlink control information DCI, and the uplink resource is used by the feedback processing unit 23 to feed back the data packet reception result to the base station.
  • the resource allocating unit 24 After the resource receiving unit 24 receives the uplink resource allocated by the base station through the DCI in the preset duration, if the base station does not receive the data packet receiving result fed back by the feedback processing unit 23 on the uplink resource, the resource allocating unit 24 further Used for:
  • the resource receiving unit 24 receives the uplink resource re-allocated by the base station through the DCI for a preset duration, and the uplink resource is used by the feedback processing unit 23 to feed back the data packet receiving result to the base station.
  • the first device is a terminal
  • the data packet transmitted by the terminal received by the data packet receiving unit 21 is the last data packet to be received
  • the data packet receiving unit 21 receives the data packet successfully transmitted by the terminal
  • the feedback processing unit 23 does not need to feed back the data packet reception success message to the terminal.
  • the timer management unit sets a timer according to the maximum receiving time of the data packet, when the data packet is received.
  • the timer management unit starts a timer, that is, limits the time for the data packet receiving unit to receive the data packet by the maximum receiving time of the data packet, and when the data packet receiving unit fails to receive the data packet, The data packet receiving unit receives the data packet retransmitted by the first device within the maximum receiving time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art.
  • the number of packets is limited, and the resulting packet transmission time is not balanced.
  • an embodiment of the present invention provides a data packet transmission method, where the method includes:
  • the first device sets a timer according to a maximum transmission time of the data packet.
  • the first device transmits a data packet to the second device, the first device starts a timer.
  • the first device receives a data packet receiving result that is sent by the second device.
  • the data packet receiving result is a data packet receiving failure message, and the timer does not time out, the first device retransmits the data packet to the second device; or
  • the first device turns off the timer;
  • the first device receives the data packet receiving result fed back by the second device, and when the data packet receiving result is a data packet receiving failure message, and the timer expires, the first device abandons transmitting the data packet to the second device.
  • FIG. 3 is an operation of the base station side in a downlink data packet transmission process of the NB M2M system;
  • the second device is a base station.
  • FIG. 3 is an operation of the terminal side in the uplink data packet transmission process of the NB M2M system.
  • the first device in S303 receives the data packet receiving result fed back by the second device, and when the data packet receiving result is a data packet receiving failure message, and the timer does not time out, the first device retransmits the data packet to the second device.
  • the first device receives the data packet receiving failure message fed back by the second device, where the maximum receiving time of the data packet refers to the second device receiving the data packet. Maximum time;
  • the timer does not time out, and the first device retransmits the data packet to the second device.
  • the number of times that the first device retransmits the same data packet to the second device may be multiple times, and each time the first device receives the message that the second device returns the received data packet failure during the maximum transmission time of the data packet. The first device retransmits the data packet to the second device.
  • the first device when the data packet receiving result is a data packet receiving success message, and the timer does not time out, the first device turns off the timer, and the first device and the second device complete the current in the maximum transmission time of the data packet.
  • the first device transmits the next data packet to the second device in the manner shown in FIG.
  • the first device in S303 receives the data packet receiving result fed back by the second device, and includes:
  • the base station When the first device is a base station and the second device is a terminal, the base station receives a data packet reception result fed back by the terminal through a physical uplink shared channel (PUSCH); or
  • PUSCH physical uplink shared channel
  • the terminal passes downlink control information.
  • Downlink Control Information DCI
  • FIG. 3 shows the operation of the base station side in the downlink data packet transmission process of the NB M2M system, and after the first device starts the timer in S302, the method is Also includes:
  • the base station allocates uplink resources to the terminal by using the downlink control information DCI for a preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the preset duration is the maximum length of time that the base station allocates uplink resources to the terminal, that is, the preset duration is the maximum time for the base station to perform downlink feedback resource scheduling; the preset duration can be timed by a timer, and the preset duration is It may be in the unit of the downlink control information DCI interval period, or may be in other time length units, such as milliseconds, seconds, etc., wherein the DCI interval period refers to the time interval between two adjacent DCIs, and the DCI interval period may be According to the characteristics of the service or the system, the DCI interval period is not specifically limited in the present invention; the terminal needs to receive all DCIs sent by the base station within a preset time period until an uplink resource for feeding back the data packet reception result is obtained.
  • FIG. 7 is a schematic structural diagram of a downlink control information DCI interval period.
  • the time interval between two adjacent DCIs in the illustration is 32 time slots, and the information carried by the DCI may include uplink or downlink for transmitting data packets.
  • the indication information of the resource and the result of receiving the data packet during the uplink data transmission may be carried in different DCIs, or may be carried in the same DCI, where the indication information is used to indicate the downlink resource.
  • the location of the location or the location of the uplink resource, where the downlink resource is used by the base station to transmit the data packet to the terminal, and the uplink resource is used by the terminal to feed back the data packet reception result to the base station; the resource occupied by the indication information of the downlink resource and the resource occupied by the indication information of the uplink resource are
  • the time interval includes at least the sum of the time required for the base station to transmit the data packet to the terminal and the processing time required after the terminal receives the data packet.
  • the method for the terminal to allocate the uplink resource for feeding back the data packet receiving result in the preset time period overcomes the prior art reservation in the NB M2M system.
  • Fixed feedback resources cause waste of resources.
  • the base station transmits the data packet to the terminal the base station starts a feedback window, and the feedback window is used to specify the preset duration.
  • the terminal only needs to monitor the DCI within the preset duration specified by the feedback window, so that the uplink for the feedback data packet reception result can be obtained. Resources, which in turn reduce the power consumption of the terminal.
  • the method further includes:
  • the base station re-allocates the uplink resource to the terminal through the DCI in the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the embodiment of the present invention re-allocates the uplink resource used for the feedback data packet receiving result by using the DCI for the terminal within the preset duration. In this way, the terminal can use the re-allocated uplink resource to feed back the data packet receiving result to the base station, thereby solving the problem that the base station receives the data packet receiving result.
  • the failure of the data reception result of the base station receiving the feedback from the terminal one is that the terminal receives the uplink resource failure allocated by the base station, the uplink resource is used to feed back the data packet reception result, and the second is that the terminal uses the uplink resource to the base station. The feedback packet failed to receive the result.
  • the method further includes:
  • the terminal confirms that the base station receives the data packet successfully, and closes. Timer.
  • the base station For the uplink data packet transmission process, if the data packet transmitted by the terminal to the base station is the last data packet to be transmitted, the base station in the prior art still needs to feed back the data packet reception result to the terminal. In the embodiment of the present invention, when the base station successfully receives the last data packet transmitted by the terminal, the base station does not need to feed back the message that the data packet is successfully received to the terminal, so that the base station can reduce the resource transmission to the terminal.
  • the signaling used in the degree of information thereby achieving the purpose of saving spectrum resources.
  • the terminal In the uplink data packet transmission process, if the data packet transmitted by the terminal to the base station is not the last data packet to be transmitted, and the base station receives the data packet successfully, the terminal receives the data packet receiving success message fed back by the base station, and receives the base station. An uplink resource allocated for the terminal to transmit the next data packet to the base station.
  • the timer is set by the first device according to the maximum transmission time of the data packet.
  • the first device transmits the data packet to the second device
  • the first device starts the timer, that is, the first transmission time of the data packet is
  • the time limit for the device to transmit the data packet to the second device is limited.
  • the second device fails to receive the data packet
  • the first device retransmits the data packet to the second device during the maximum transmission time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art. The number of packets is limited, and the resulting packet transmission time is not balanced.
  • an embodiment of the present invention provides a data packet transmission method, where the method includes:
  • the second device sets a timer according to a maximum receiving time of the data packet.
  • the second device When the second device receives the data packet transmitted by the first device, the second device starts a timer.
  • the second device feeds back a data packet receiving result to the first device.
  • the data packet receiving result is a data packet receiving failure message, and the timer does not time out
  • the second device receives the data packet retransmitted by the first device; or
  • the second device feeds back the data packet receiving result to the first device, and when the data packet receiving result is a data packet receiving success message, and the timer does not time out, the second device turns off the timer; or
  • the second device feeds back the data packet receiving result to the first device.
  • the data packet receiving result is a data packet failure message, and the timer expires, the second device gives up receiving the data packet transmitted by the first device.
  • FIG. 4 is a terminal side operation in a downlink data packet transmission process of the NB M2M system;
  • the terminal and the second device are base stations.
  • FIG. 4 is an operation of the base station side in the uplink data packet transmission process of the NB M2M system.
  • the second device turns off the timer, and the second device completes the data packet receiving in the maximum receiving time of the data packet, if any The next data packet that needs to be received, the second device continues to receive the next data packet transmitted by the first device in the method shown in FIG.
  • the second device in S403 feeds back the data packet receiving result to the first device, including:
  • the terminal feeds back the data packet reception result to the base station through the physical uplink shared channel PUSCH;
  • the base station feeds back the data packet reception result to the terminal through the downlink control information DCI.
  • the method further includes:
  • the terminal receives the uplink resource allocated by the base station by using the downlink control information DCI for the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the preset duration is the maximum time allowed for the base station to allocate uplink resources to the terminal, that is, the preset duration is the maximum time for the base station to perform downlink feedback resource scheduling; the preset duration may be the downlink control information DCI interval period.
  • the unit can also be in other time length units, such as milliseconds, seconds, etc., wherein the DCI interval period refers to the time interval between two adjacent DCIs, and the DCI interval period can be set according to service or system characteristics.
  • the DCI interval period is not specifically limited in the invention; the terminal needs to receive all DCIs sent by the base station within a preset duration until an uplink resource for feeding back the data packet reception result is obtained.
  • the base station since the channel resources in the NB M2M system are limited, there is no feedback resource dedicated to the receiving end to feed back the reception result of the data packet to the transmitting end.
  • a fixed feedback resource is reserved for the receiving end to feed back the receiving result of the data packet to the transmitting end.
  • the base station since the length of time required for transmission of each data packet is inconsistent, the data is transmitted in the NB M2M system. The method of preserving fixed feedback resources before the packet is likely to cause waste of resources.
  • the base station allocates the feedback data for the terminal within the preset duration.
  • the method of receiving the uplink resource of the packet overcomes the problem of waste of resources by using the prior art to reserve a fixed feedback resource.
  • the base station After the base station transmits the data packet to the terminal, the base station starts a feedback window, and the feedback window is used to specify the preset duration.
  • the terminal only needs to monitor the DCI within the preset duration specified by the feedback window, so that the uplink for the feedback data packet reception result can be obtained. Resources, which in turn reduce the power consumption of the terminal.
  • the method further includes:
  • the terminal receives the uplink resource re-allocated by the base station through the DCI in the preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the base station receives the data packet reception result that the terminal feedback fails, that is, the base station does not receive the data packet reception result fed back by the terminal during the maximum transmission time of the data packet, and the embodiment of the present invention receives the data through the terminal.
  • the uplink resource is re-allocated by the base station, so that the terminal can use the re-allocated uplink resource to feed back the data packet receiving result to the base station, thereby solving the problem that the base station receives the data packet receiving result.
  • the terminal receives the uplink resource failure allocated by the base station, the uplink resource is used to feed back the data packet reception result, and the second is that the terminal uses the uplink resource to the base station.
  • the feedback packet failed to receive the result.
  • the data packet transmitted by the terminal received by the base station is the last data packet to be received, and when the base station receives the data packet transmitted by the terminal successfully, the base station does not The data packet reception success message needs to be fed back to the terminal.
  • the base station For the uplink data packet transmission process, if the data packet transmitted by the terminal to the base station is the last data packet to be transmitted, the base station in the prior art still needs to feed back the data packet reception result to the terminal.
  • the base station when the base station successfully receives the last data packet transmitted by the terminal, the base station does not need to feed back the message that the data packet is successfully received to the terminal, so that the signaling used by the base station to send the resource scheduling information to the terminal may be reduced. Achieve the goal of saving spectrum resources.
  • the terminal In the uplink data packet transmission process, if the data packet transmitted by the terminal to the base station is not the last data packet to be transmitted, and the base station receives the data packet successfully, the terminal receives the data packet receiving success message fed back by the base station, and receives the data packet.
  • the uplink resource allocated by the base station, and the uplink resource is used for The terminal transmits the next data packet to the base station.
  • the timer is set by the second device according to the maximum receiving time of the data packet.
  • the second device receives the data packet transmitted by the first device
  • the second device starts the timer, that is, the second receiving time of the data packet is the second.
  • the time when the device receives the data packet is restricted.
  • the second device fails to receive the data packet, the second device receives the data packet retransmitted by the first device within the maximum receiving time of the data packet.
  • the transmission time of each data packet is balanced; and the data is retransmitted to the receiving end by the maximum number of retransmission times of the data packet in the prior art.
  • the number of packets is limited, and the resulting packet transmission time is not balanced.
  • FIG. 5 is an interaction process between a base station and a terminal in a downlink data packet transmission process, and the specific steps are as follows:
  • the base station sets a base station side timer according to a maximum transmission time of the data packet.
  • the terminal sets a terminal side timer according to a maximum receiving time of the data packet.
  • the base station allocates a downlink resource to the terminal, and starts a base station side timer, where the downlink resource is used by the base station to transmit the data packet to the terminal.
  • the base station sends a downlink resource to the terminal.
  • S505 The terminal receives the downlink resource sent by the base station, and starts the terminal side timer, where the downlink resource is used by the base station to transmit the data packet to the terminal.
  • the base station uses a downlink resource to transmit a data packet to the terminal.
  • the terminal uses the downlink resource to receive the data packet transmitted by the base station.
  • the base station allocates a physical uplink shared channel PUSCH uplink resource to the terminal, where the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the base station sends the uplink resource to the terminal by using the downlink control information DCI in the preset duration.
  • the base station activates a feedback window, and the feedback window is configured to specify a preset duration.
  • the base station allocates an uplink resource to the terminal by using the downlink control information DCI, and the uplink resource is used by the terminal to provide feedback to the base station.
  • the data packet receives the result, thereby solving the prior art adoption Leave fixed feedback resources and cause waste of resources.
  • the preset duration is the maximum length of time that the base station allocates the uplink resource to the terminal.
  • the preset duration is after the base station transmits the data packet to the terminal, and the base station allocates the downlink control information DCI to the terminal for the preset duration.
  • the feedback data packet receives the uplink resource of the result, and the terminal receives all DCIs sent by the base station within a preset time period to obtain an uplink resource for feeding back the data packet receiving result;
  • the preset duration can be timed by a timer, and the preset duration is It may be in units of downlink control information DCI interval period, or may be in other time length units, such as milliseconds, seconds, and the like.
  • the terminal receives, by using the downlink control information DCI, the physical uplink shared channel PUSCH uplink resource allocated by the base station, where the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the terminal starts a feedback window, where the feedback window is used to specify a preset duration; in the preset duration specified by the feedback window, the terminal receives all DCIs sent by the base station to obtain an uplink resource for feeding back the data packet receiving result;
  • the preset duration specified by the feedback window on the terminal side is the same as the preset duration specified by the feedback window on the base station side.
  • the preset duration can be timed by a timer.
  • the preset duration can be the DCI interval period of the downlink control information, or In other time lengths, such as milliseconds, seconds, and so on.
  • the uplink resource is used by the terminal to feed back the data packet receiving result to the base station, which solves the problem that the reserved signal is reserved in the prior art.
  • the problem of wasting is a problem that the reserved signal is reserved in the prior art.
  • the terminal-side timer timing range (that is, the maximum receiving time of the data packet)
  • the terminal successfully receives the data packet perform S511 to S513
  • the terminal fails to receive the data packet perform S514 to S519
  • the terminal-side timer expires When the terminal receives the data packet transmitted by the base station for more than the maximum receiving time of the data packet, the terminal abandons receiving the data packet transmitted by the base station this time.
  • the terminal uses the physical uplink shared channel PUSCH uplink resource to feed back a data packet reception success message to the base station.
  • the terminal closes the terminal side timer.
  • the terminal receives the data packet transmitted by the base station at this time, and if there is a next data packet that needs to be received, the terminal receives the next data packet transmitted by the base station in the same manner.
  • the base station receives the data packet success message fed back by the terminal, and closes the base station side timer.
  • the base station transmits the data packet to the terminal this time. If there is a next data packet that needs to be transmitted, the base station transmits the next data packet to the terminal in the same manner.
  • the terminal uses the physical uplink shared channel PUSCH uplink resource to feed back a data packet reception failure message to the base station.
  • the base station receives a data packet reception failure message fed back by the terminal, and the base station re-allocates the downlink resource used for transmitting the data packet in the base station side timer timing range (that is, the maximum transmission time of the data packet);
  • the base station After the base station receives the packet reception failure message fed back by the terminal, if the base station side timer expires at this time (that is, the time when the base station transmits the data packet to the terminal this time has exceeded the maximum transmission time of the data packet), the base station gives up the weight to the terminal. Pass the packet.
  • the base station sends a downlink resource to the terminal.
  • the terminal receives a downlink resource that is re-allocated by the base station for transmitting a data packet.
  • the base station retransmits the data packet to the terminal by using the re-allocated downlink resource.
  • the base station restarts the feedback window, and the feedback window is used to specify the preset duration.
  • the base station allocates uplink resources to the terminal by using the downlink control information DCI, and the uplink resource is used for the terminal to provide feedback to the base station. Packet reception result;
  • the terminal uses the re-allocated downlink resource to receive a data packet that is retransmitted by the base station.
  • the terminal restarts the feedback window, and the terminal receives all the DCIs sent by the base station to obtain the uplink resource for feeding back the data packet receiving result in the preset time period specified by the feedback window; the preset specified by the terminal side feedback window
  • the duration is the same as the preset duration specified by the base station side feedback window.
  • the terminal-side timer timing range (that is, the maximum receiving time of the data packet) if the terminal successfully receives the data packet retransmitted by the base station, executing S511 to S513; if the terminal fails to receive the data packet retransmitted by the base station, executing S514 to S519.
  • the fifth embodiment considers a case where the receiving result of the data packet fed back by the base station fails (that is, the base station does not receive the data packet of the terminal feedback on the uplink resource used for feeding back the data packet receiving result. Receiving the result), after the step S510, the method shown in FIG. 5 further includes:
  • S520 The base station re-allocates the uplink resource for the terminal within a preset duration, where the uplink resource is used by the terminal to feed back the data packet receiving result to the base station;
  • the base station sends the re-allocated uplink resource to the terminal by using the downlink control information DCI in the preset duration.
  • the terminal receives the uplink resource that is re-allocated by the base station by using the downlink control information DCI, and the uplink resource is used by the terminal to feed back the data packet receiving result to the base station.
  • the subsequent terminal uses the uplink resource to feed back the data packet receiving result to the base station, and the specific method is the same as the foregoing steps S511 to S519, and details are not described herein again.
  • the terminal receives the uplink resource failure allocated by the base station, the uplink resource is used by the terminal to feed back the data packet reception result to the base station; The resource fails to feed back the data packet reception result to the base station.
  • the downlink data transmission process of the NB M2M system is implemented, and the time for the base station to transmit the data packet to the terminal is limited by the maximum transmission time of the data packet, and the time when the terminal receives the data packet transmitted by the base station by the maximum receiving time of the data packet.
  • the limitation is that the downlink transmission time of each data packet in the NB M2M system is equalized; the uplink resource allocated for the feedback of the data packet receiving result is allocated to the terminal by the base station within the preset time period specified by the feedback window, thereby overcoming the reservation in the prior art.
  • Fixed feedback resources cause waste of resources.
  • the base station starts the feedback window after transmitting the data packet to the terminal, and the terminal starts the feedback window after receiving the data packet transmitted by the base station, and the preset duration specified by the feedback window of the terminal side is the same as the preset duration specified by the feedback window of the base station side, and the terminal only needs to monitor the feedback.
  • the DCI within the preset duration specified by the window is used to obtain the uplink resource allocated by the base station for the feedback data packet receiving result, which overcomes the problem of waste of resources caused by using the prior art to reserve fixed feedback resources, and is beneficial to the problem.
  • the terminal saves energy.
  • the base station re-allocates the uplink resource used for the feedback of the data packet reception result by the base station, and solves the problem that the data packet reception result fed back by the base station receiving terminal fails.
  • FIG. 6 is an interaction process between a base station and a terminal in an uplink data packet transmission process, and the specific steps are as follows:
  • the base station sets a base station side timer according to a maximum receiving time of the data packet.
  • the terminal sets a terminal side timer according to a maximum transmission time of the data packet.
  • the base station allocates an uplink resource to the terminal, and starts a base station side timer, where the uplink resource is used by the terminal to transmit the data packet to the base station.
  • the base station sends an uplink resource to the terminal.
  • the terminal receives the uplink resource sent by the base station, and starts the terminal side timer, where the uplink resource is used by the terminal to transmit the data packet to the base station.
  • the terminal uses the uplink resource to transmit a data packet to the base station.
  • the base station receives a data packet transmitted by the terminal.
  • the terminal starts a feedback window, where the feedback window is used to specify a preset duration; in the preset duration specified by the feedback window, the terminal receives the data packet reception result fed back by the base station through the downlink control information DCI.
  • the base station starts a feedback window, where the feedback window is used to specify a preset duration; in the preset duration specified by the feedback window, the base station feeds back the data packet reception result to the terminal through the downlink control information DCI.
  • the preset duration of the feedback window of the base station is the same as the preset duration of the feedback window of the terminal.
  • the preset duration can be timed by a timer.
  • the preset duration can be the DCI interval period of the downlink control information. It is in other time lengths, such as milliseconds, seconds, and so on.
  • the base station side timer timing range ie, the maximum receiving time of the data packet
  • the base station if the base station receives the data packet successfully, perform S608 to S610; if the base station fails to receive the data packet, perform S611 to S616; if the base station side timer expires (Any time when the base station receives the data packet transmitted by the terminal exceeds the maximum receiving time of the data packet), the base station abandons the data packet that the terminal transmits this time.
  • the base station feeds back the data packet to the terminal by using the downlink control information DCI for a preset duration.
  • the base station turns off the base station side timer.
  • the base station receives the data packet transmitted by the terminal at this time. If the data packet transmitted by the terminal to the base station is not the last data packet to be transmitted, the downlink control information DCI sent by the base station to the terminal may be included in the S608. The uplink resource of the next data packet is transmitted to the terminal.
  • the terminal receives, by using the downlink control information DCI, the data packet received by the base station in the preset duration. Receiving the success message, closing the terminal side timer;
  • the base station feeds back a data packet reception failure message to the terminal by using the downlink control information DCI in a preset duration.
  • the base station re-allocates uplink resources for the terminal, and the uplink resources are used by the terminal to transmit data packets to the base station.
  • the base station sends the re-allocated uplink resource to the terminal.
  • the terminal receives the re-allocated uplink resource sent by the base station, where the uplink resource is used by the terminal to transmit the data packet to the base station.
  • the terminal performs the S615 in the terminal-side timer timing range (that is, the maximum transmission time of the data packet);
  • the terminal retransmits the data packet to the base station by using the reassigned uplink resource.
  • the terminal side timer expires at this time (that is, the time when the terminal transmits the data packet to the base station this time has exceeded the maximum transmission time of the data packet)
  • the terminal relinquishes retransmission of the data packet to the base station.
  • the base station receives a data packet that is retransmitted by the terminal.
  • the terminal restarts the feedback window, and the feedback window is configured to specify a preset duration.
  • the terminal receives the data packet reception result fed back by the base station by using the downlink control information DCI within the preset duration specified by the feedback window.
  • the base station restarts the feedback window, and the base station feeds back the data packet receiving result to the terminal by using the downlink control information DCI within the preset duration specified by the feedback window.
  • the preset duration specified by the base station side feedback window is the same as the preset duration specified by the terminal side feedback window.
  • the base station side timer timing range ie, the maximum receiving time of the data packet
  • step S608 shown in FIG. 6 is S610 can be replaced with S617 to S618, as follows:
  • the base station does not need to feed back the data packet success message to the terminal, and the base station turns off the base station side timer.
  • the terminal does not have a terminal-side timer timing range (data packet maximum transmission time). Receiving a data packet success message fed back by the base station, and the terminal turns off the terminal side timer;
  • the base station When the base station successfully receives the last data packet transmitted by the terminal, the base station does not need to feed back the data packet success message to the terminal. This can reduce the signaling used by the base station to send resource scheduling information to the terminal, so as to save the spectrum resources.
  • the indication of the last data packet may be notified to the base station by the Buffer Status Reports (BSR) reported by the terminal to the base station, or may be carried in the header information of the data packet as the indication information of whether it is the last data packet.
  • BSR Buffer Status Reports
  • the uplink data transmission process of the NB M2M system is implemented, and the time for the terminal to transmit the data packet to the base station is limited by the maximum transmission time of the data packet, and the time when the base station receives the data packet transmitted by the terminal by the maximum receiving time of the data packet.
  • the restriction is made to make the uplink transmission time of each data packet in the NB M2M system equal.
  • an embodiment of the present invention provides a data packet transmission apparatus, and the apparatus shown in FIG. 7 supports the method shown in FIG. 3, and the apparatus includes:
  • a storage 81 configured to store a data packet transmitted to the second device
  • the transceiver 82 is configured to transmit, to the second device, the data packet stored by the memory 81;
  • the processor 83 is configured to set a timer according to a maximum transmission time of the data packet; when the transceiver 82 transmits the data packet to the second device, start a timer;
  • the transceiver 82 is further configured to: after the processor 83 starts a timer, receive a data packet receiving result fed back by the second device;
  • the processor 83 is further configured to: when the data packet receiving result received by the transceiver 82 is a data packet receiving failure message, and the timer does not time out, triggering the transceiver 82 to retransmit the data packet to the second device; or
  • the transceiver 82 is notified to abandon the transmission of the data packet to the second device.
  • the processor 83 when the processor 83 triggers the transceiver 82 to retransmit the data packet to the second device, the processor 83 is specifically configured to:
  • the processor 83 learns that the transceiver 82 receives the data packet reception failure message fed back by the second device, where the maximum receiving time of the data packet refers to The maximum time allowed for the second device to receive a data packet;
  • the timer is not timed out, and the processor 83 triggers the transceiver 82 to retransmit the data packet to the second device.
  • the second device is a terminal, or the second device is a base station.
  • the transceiver 82 is configured to: when receiving the data packet receiving result fed back by the second device, specifically:
  • the transceiver 82 receives the data packet reception result fed back by the terminal through the physical uplink shared channel PUSCH.
  • the transceiver 82 when receiving the data packet receiving result fed back by the second device, is specifically configured to:
  • the transceiver 82 receives the data packet reception result fed back by the base station by using the downlink control information DCI.
  • the second device is a terminal
  • the processor 83 is further configured to allocate an uplink resource to the terminal within a preset duration after the timer is started, and trigger the transceiver 82 to send the uplink resource to the terminal, where the uplink resource is used by the terminal to the transceiver. 82 feedback data packet receiving result;
  • the transceiver 82 is further configured to send the uplink resource to the terminal by using the downlink control information DCI for a preset duration, and the uplink resource is used by the terminal to feed back the data packet receiving result to the transceiver 82.
  • the transceiver 82 After the transceiver 82 sends the uplink resource to the terminal by using the downlink control information DCI, the transceiver 82 does not receive the data packet reception result fed back by the terminal on the uplink resource, and the timing is Has not timed out,
  • the processor 83 is further configured to re-allocate the uplink resource for the terminal within a preset duration, and trigger the transceiver 82 to retransmit the uplink resource to the terminal, where the uplink resource is used by the terminal to the transceiver. 82 feedback data packet receiving result;
  • the transceiver 82 is further configured to retransmit the uplink resource to the terminal by using the downlink control information DCI for a preset duration, where the uplink resource is used by the terminal to feed back the data packet receiving result to the transceiver 82.
  • the processor 83 is further configured to:
  • the The processor 83 confirms that the base station successfully received the data packet and turns off the timer.
  • the transmission time of each data packet is equalized; and the data packet passing through the prior art is overcome.
  • the maximum number of retransmissions limits the number of times the transmitting end retransmits the data packet to the receiving end, and the resulting transmission time of each data packet is not balanced.
  • an embodiment of the present invention provides a data packet transmission apparatus, and the apparatus shown in FIG. 9 supports the method shown in FIG. 4, and the apparatus includes:
  • the transceiver 91 is configured to receive a data packet transmitted by the first device.
  • a memory 92 configured to store a data packet received by the transceiver 91;
  • the processor 93 is configured to set a timer according to a maximum receiving time of the data packet; when the transceiver 91 receives the data packet transmitted by the first device, start a timer;
  • the transceiver 91 is further configured to feed back a data packet receiving result to the first device.
  • the processor 93 is further configured to: when the data packet received by the transceiver 91 is a packet reception failure message, and the timer does not time out, trigger the transceiver 91 to receive the data packet retransmitted by the first device. ;or
  • the first device is a base station; or the first device is a terminal.
  • the transceiver 91 feeds back the data packet receiving result to the first device, it is specifically used to:
  • the transceiver 91 feeds back a packet reception result to the base station through the physical uplink shared channel PUSCH.
  • the transceiver 91 feeds back the data packet receiving result to the first device, it is specifically used to:
  • the transceiver 91 feeds back the data packet reception result to the terminal through the downlink control information DCI.
  • the transceiver 91 is further configured to:
  • the transceiver 91 After the processor 93 starts the timer, the transceiver 91 receives the uplink resource allocated by the base station by using the downlink control information DCI for a preset duration, and the uplink resource is used by the transceiver 91 to feed back the data packet to the base station. result.
  • the transceiver 91 receives the uplink resource allocated by the base station through the DCI for a predetermined period of time, and if the base station does not receive the data packet reception result fed back by the transceiver 91 on the uplink resource, the transceiver The device 91 is also used to:
  • the transceiver 91 receives the uplink resource that the base station re-allocates through the DCI for a preset duration, and the uplink resource is used by the transceiver 91 to feed back the data packet receiving result to the base station.
  • the transceiver 91 receives the data packet transmitted by the terminal, the transceiver 91 does not need to feed back a data packet reception success message to the terminal.
  • the transmission time of each data packet is balanced; overcoming the maximum weight of the data packet in the prior art
  • the number of transmissions limits the number of times the transmitting end retransmits the data packet to the receiving end, and the resulting transmission time of each data packet is not balanced.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention may employ computer-usable storage media (including but not limited to disks) in one or more of the computer-usable program code embodied therein. The form of a computer program product implemented on a memory, CD-ROM, optical memory, or the like.
  • 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.

Landscapes

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

Abstract

本发明提供了一种数据包传输装置及方法,用以解决NB M2M系统在进行上行或下行数据包传输过程中,存在的各个数据包传输时间不均衡的问题。本发明方法包括:第一设备根据数据包的最大传输时间设置定时器;当第一设备向第二设备传输数据包时,第一设备启动定时器;第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第一设备向第二设备重传数据包;或者,第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,第一设备关闭定时器;或者,第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器超时时,第一设备放弃向第二设备传输数据包。

Description

一种数据包传输装置及方法 技术领域
本发明涉及通信领域,尤其涉及一种数据包传输装置及方法。
背景技术
在窄带机器到机器(NarrowBand Machine to Machine,NB M2M)系统中,由于NB M2M系统针对的业务是小数据包业务,且NB M2M系统具有单个数据包处理时间长、传输速率低的特点,因此NB M2M系统要求终端具有成本低、耗电量低的特点。
NB M2M系统中上行或下行数据包的传输采用单进程的混合自动请求重传(Hybrid Automatic Repeat request,HARQ)方案。单进程HARQ方案是指,发送端向接收端传输一个数据包后,发送端等待接收端反馈该数据包的接收结果;如果接收端接收该数据包成功,则发送端会接收到接收端反馈的接收该数据包成功的消息,此时发送端向接收端继续传输下一个需要传输的数据包;如果接收端接收该数据包失败,则发送端会接收到接收端反馈的接收该数据包失败的消息,此时发送端向接收端重传该数据包。
在NB M2M系统的上行或下行数据包的传输过程中,现有的单进程HARQ方案中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,容易出现各个数据包传输时间不均衡的情况。
发明内容
本发明实施例提供了一种数据包传输装置及方法,用以解决NB M2M系统在进行上行或下行数据包传输过程中,存在的各个数据包传输时间不均衡的问题。
第一方面,本发明实施例提供一种数据包传输装置,包括:
数据包传输单元,用于向第二设备传输数据包;
定时器管理单元,用于根据数据包的最大传输时间设置定时器;当数据包传输单元向第二设备传输数据包时,启动定时器;
反馈处理单元,用于在定时器管理单元启动定时器之后,接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,触发数据包传输单元向第二设备重传数据包;或者
用于在定时器管理单元启动定时器之后,接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,触发定时器管理单元关闭定时器;或者
用于在定时器管理单元启动定时器之后,接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器超时时,通知数据包传输单元放弃向第二设备传输数据包。
结合第一方面,在第一种可能的实现方式中,反馈处理单元触发数据包传输单元向第二设备重传数据包时,具体用于:
当第二设备在数据包最大接收时间内接收数据包失败时,反馈处理单元接收第二设备反馈的数据包接收失败消息,其中,数据包最大接收时间是指第二设备接收一个数据包所允许的最大时长;
定时器未超时,反馈处理单元触发数据包传输单元向第二设备重传数据包。
结合第一方面或第一方面的第一种可能的实现方式,在第一方面的第二种可能的实现方式中,第二设备为终端,或者第二设备为基站。
结合第一方面,在第三种可能的实现方式中,当第二设备为终端时,反馈处理单元在接收第二设备反馈的数据包接收结果时,具体用于:
反馈处理单元通过物理上行链路共享信道PUSCH接收终端反馈的数据包接收结果。
结合第一方面,在第四种可能的实现方式中,当第二设备为基站时,反馈处理单元在接收第二设备反馈的数据包接收结果时,具体用于:
反馈处理单元通过下行控制信息DCI接收基站反馈的数据包接收结果。
结合第一方面,在第五种可能的实现方式中,若第二设备为终端,该装置还包括:
资源分配单元,用于在定时器管理单元启动定时器之后,在预设时长内通过下行控制信息DCI为终端分配上行资源,上行资源用于终端向反馈处理单元反馈数据包接收结果。
结合第一方面的第五种可能的实现方式,在第一方面的第六种可能的实现方式中,资源分配单元在预设时长内通过DCI为终端分配上行资源之后,若反馈处理单元在上行资源上没有收到终端反馈的数据包接收结果、且定时器未超时,资源分配单元还用于:
资源分配单元在预设时长内通过DCI为终端重新分配上行资源,上行资源用于终端向反馈处理单元反馈数据包接收结果。
结合第一方面,在第七种可能的实现方式中,若第二设备为基站,反馈处理单元还用于:
若数据包传输单元向基站本次传输的数据包为需要传输的最后一个数据包,则当反馈处理单元没有接收到基站反馈的数据包接收结果、且定时器未超时时,反馈处理单元确认基站接收数据包成功,并触发定时器管理单元关闭定时器。
本发明实施例中,通过定时器管理单元根据数据包的最大传输时间设置定时器,当数据包传输单元向第二设备传输数据包时,定时器管理单元启动定时器,即通过数据包最大传输时间对数据包传输单元向第二设备传输数据包的时间进行限制,当第二设备接收数据包失败时,数据包传输单元在数据包最大传输时间内向第二设备重传该数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
第二方面,本发明实施例提供一种数据包传输装置,包括:
数据包接收单元,用于接收第一设备传输的数据包;
定时器管理单元,用于根据数据包最大接收时间设置定时器;当数据包接收单元接收第一设备传输的数据包时,启动定时器;
反馈处理单元,用于在定时器管理单元启动定时器之后,向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,触发数据包接收单元接收第一设备重传的数据包;或者
用于在定时器管理单元启动定时器之后,向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,触发定时器管理单元关闭定时器;或者
用于在定时器管理单元启动定时器之后,向第一设备反馈数据包接收结果,当数据包接收结果为数据包失败消息、且定时器超时时,通知数据包接收单元放弃接收第一设备传输的数据包。
结合第二方面,在第一种可能的实现方式中,第一设备为基站;或者第一设备为终端。
结合第二方面,在第二种可能的实现方式中,当第一设备为基站时,反馈处理单元向第一设备反馈数据包接收结果时,具体用于:
反馈处理单元通过物理上行链路共享信道PUSCH向基站反馈数据包接收结果。
结合第二方面,在第三种可能的实现方式中,当第一设备为终端时,反馈处理单元向第一设备反馈数据包接收结果时,具体用于:
反馈处理单元通过下行控制信息DCI向终端反馈数据包接收结果。
结合第二方面,在第四种可能的实现方式中,若第一设备为基站,该装置还包括:
资源接收单元,用于在定时器管理单元启动定时器之后,在预设时长内通过下行控制信息DCI接收基站为其分配的上行资源,上行资源用于反馈处理单元向基站反馈数据包接收结果。
结合第二方面的第四种可能的实现方式,在第二方面的第五种可能的实现中,资源接收单元在预设时长内通过DCI接收基站为其分配的上行资源之 后,若基站在上行资源上没有收到反馈处理单元反馈的数据包接收结果,资源分配单元还用于:
资源接收单元在预设时长内通过DCI接收基站为其重新分配的上行资源,上行资源用于反馈处理单元向基站反馈数据包接收结果。
结合第二方面,在第六种可能的实现方式中,若第一设备为终端,数据包接收单元接收的终端本次传输的数据包为需要接收的最后一个数据包,则当数据包接收单元接收终端传输的数据包成功时,反馈处理单元不需要向终端反馈数据包接收成功消息。
本发明实施例中,通过定时器管理单元根据数据包最大接收时间设置定时器,当数据包接收单元接收第一设备传输的数据包时,定时器管理单元启动定时器,即通过数据包最大接收时间对数据包接收单元接收数据包的时间进行限制,当数据包接收单元接收数据包失败时,数据包接收单元在数据包最大接收时间内接收第一设备重传的数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
第三方面,本发明实施例提供一种数据包传输方法,包括:
第一设备根据数据包的最大传输时间设置定时器;
当第一设备向第二设备传输数据包时,第一设备启动定时器;
第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第一设备向第二设备重传数据包;或者
第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,第一设备关闭定时器;或者
第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器超时时,第一设备放弃向第二设备传输数据包。
结合第三方面,在第一种可能的实现方式中,第一设备接收第二设备反 馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第一设备向第二设备重传数据包,包括:
当第二设备在数据包最大接收时间内接收数据包失败时,第一设备接收第二设备反馈的数据包接收失败消息,其中,数据包最大接收时间是指第二设备接收一个数据包所允许的最大时长;
定时器未超时,第一设备向第二设备重传数据包。
结合第三方面或第三方面的第一种可能的实现方式,在第三方面的第二种可能的实现方式中,
若第一设备为基站,则第二设备为终端;或者
若第一设备为终端,则第二设备为基站。
结合第三方面,在第三种可能的实现方式中,当第一设备为基站,第二设备为终端时,第一设备接收第二设备反馈的数据包接收结果,包括:
基站通过物理上行链路共享信道PUSCH接收终端反馈的数据包接收结果。
结合第三方面,在第四种可能的实现方式中,当第一设备为终端,第二设备为基站时,第一设备接第二设备反馈的数据包接收结果,包括:
终端通过下行控制信息DCI接收基站反馈的数据包接收结果。
结合第三方面,在第五种可能的实现方式中,若第一设备为基站,第二设备为终端,在第一设备启动定时器之后,该方法还包括:
基站在预设时长内通过下行控制信息DCI为终端分配上行资源,上行资源用于终端向基站反馈数据包接收结果。
结合第三方面的第五种可能的实现方式,在第三方面的第六种可能的实现方式中,在基站在预设时长内通过DCI为终端分配上行资源之后,若基站在上行资源上没有收到终端反馈的数据包接收结果、且定时器未超时,该方法还包括:
基站在预设时长内通过DCI为终端重新分配上行资源,上行资源用于终端向基站反馈数据包接收结果。
结合第三方面,在第七种可能的实现方式中,若第一设备为终端,第二设备为基站,该方法还包括:
若终端向基站本次传输的数据包为需要传输的最后一个数据包,则当终端没有接收到基站反馈的数据包接收结果、且定时器未超时时,终端确认基站接收数据包成功,并关闭定时器。本发明实施例中,通过第一设备根据数据包的最大传输时间设置定时器,当第一设备向第二设备传输数据包时,第一设备启动定时器,即通过数据包最大传输时间对第一设备向第二设备传输数据包的时间进行限制,当第二设备接收数据包失败时,第一设备在数据包最大传输时间内向第二设备重传该数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
第四方面,本发明实施例提供一种数据包传输方法,包括:
第二设备根据数据包最大接收时间设置定时器;
当第二设备接收第一设备传输的数据包时,第二设备启动定时器;
第二设备向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第二设备接收第一设备重传的数据包;或者
第二设备向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,第二设备关闭定时器;或者
第二设备向第一设备反馈数据包接收结果,当数据包接收结果为数据包失败消息、且定时器超时时,第二设备放弃接收第一设备传输的数据包。
结合第四方面,在第一种可能的实现方式中,
若第二设备为终端,则第一设备为基站;或者
若第二设备为基站,则第一设备为终端。
结合第四方面,在第二种可能的实现方式中,当第一设备为基站,第二设备为终端时第二设备向第一设备反馈数据包接收结果,包括:
终端通过物理上行链路共享信道PUSCH向基站反馈数据包接收结果。
结合第四方面,在第三种可能的实现方式中,当第一设备为终端,第二设备为基站时,第二设备向第一设备反馈数据包接收结果,包括:
基站通过下行控制信息DCI向终端反馈数据包接收结果。
结合第四方面,在第四种可能的实现方式中,若第一设备为基站,第二设备为终端,在第二设备启动定时器之后,该方法还包括:
终端在预设时长内通过下行控制信息DCI接收基站为其分配的上行资源,上行资源用于终端向基站反馈数据包接收结果。
结合第四方面的第四种可能的实现方式,在第四方面的第五种可能的实现方式中,在终端在预设时长内通过DCI接收基站为其分配的上行资源之后,若基站在上行资源上没有收到终端反馈的数据包接收结果,该方法还包括:
终端在预设时长内通过DCI接收基站为其重新分配的上行资源,上行资源用于终端向基站反馈数据包接收结果。
结合第四方面,在第六种可能的实现方式中,若第一设备为终端,第二设备为基站,基站接收的终端本次传输的数据包为需要接收的最后一个数据包,则当基站接收终端传输的数据包成功时,基站不需要向终端反馈数据包接收成功消息。
本发明实施例中,通过第二设备根据数据包最大接收时间设置定时器,当第二设备接收第一设备传输的数据包时,第二设备启动定时器,即通过数据包最大接收时间对第二设备接收数据包的时间进行限制,当第二设备接收数据包失败时,第二设备在数据包最大接收时间内接收第一设备重传的数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
附图说明
图1为本发明实施例提供的一种数据包传输装置结构示意图;
图2为本发明实施例提供的一种数据包传输装置结构示意图;
图3为本发明实施例提供的一种数据包传输方法流程示意图;
图4为本发明实施例提供的一种数据包传输方法流程示意图;
图5为本发明实施例提供的一种下行数据包传输方法流程示意图;
图6为本发明实施例提供的一种上行数据包传输方法流程示意图;
图7为本发明实施例提供的下行控制信息DCI间隔周期的结构示意图;
图8为本发明实施例提供的一种数据包传输装置结构示意图;
图9为本发明实施例提供的一种数据包传输装置结构示意图。
具体实施方式
本发明实施例提供了一种数据包传输装置及方法,用以解决NB M2M系统在进行上行或下行数据包传输过程中,存在的各个数据包传输时间不均衡的问题。
现有的单进程HARQ方案中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,即当接收端接收发送端重传的数据包失败,且发送端向接收端重传该数据包的次数超过数据包最大重传次数时,发送端放弃向接收端重传该数据包。由于NB M2M系统中的频率资源有限,每个数据包的传输时间受到信道质量的影响很大,因此会出现某个数据包传输时间较长,而其他数据包的传输时间较短的情况,如果仍采用最大重传次数对重传进行限定,会出现各个数据包的最大传输时间不均衡的情况。
本发明实施例中,通过数据包最大传输时间对发送端向接收端传输数据包的时间进行限制,当接收端接收数据包失败时,发送端在数据包最大传输时间内向接收端重传该数据包。因此本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
本发明实施例的序号仅代表实施例的先后顺序,不代表实施例的优异。
实施例一
如图1所示,本发明实施例提供了一种数据包传输装置,图1所示的装置支持图3所示的方法,该装置包括:
数据包传输单元11,用于向第二设备传输数据包;
定时器管理单元12,用于根据数据包的最大传输时间设置定时器;当数据包传输单元11向第二设备传输数据包时,启动定时器;
反馈处理单元13,用于在定时器管理单元12启动定时器之后,接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,触发数据包传输单元11向第二设备重传数据包;或者
用于在定时器管理单元12启动定时器之后,接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,触发定时器管理单元12关闭定时器;或者
用于在定时器管理单元12启动定时器之后,接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器超时时,通知数据包传输单元11放弃向第二设备传输数据包。
较佳地,反馈处理单元13触发数据包传输单元11向第二设备重传数据包时,具体用于:
当第二设备在数据包最大接收时间内接收数据包失败时,反馈处理单元13接收第二设备反馈的数据包接收失败消息,其中,数据包最大接收时间是指第二设备接收一个数据包所允许的最大时长;
定时器未超时,反馈处理单元13触发数据包传输单元11向第二设备重传数据包。
较佳地,第二设备为终端,或者第二设备为基站。
较佳地,当第二设备为终端时,反馈处理单元13在接收第二设备反馈的数据包接收结果时,具体用于:
反馈处理单元13通过物理上行链路共享信道PUSCH接收终端反馈的数 据包接收结果。
较佳地,当第二设备为基站时,反馈处理单元13在接收第二设备反馈的数据包接收结果时,具体用于:
反馈处理单元13通过下行控制信息DCI接收基站反馈的数据包接收结果。
较佳地,若第二设备为终端,该装置还包括:
资源分配单元14,用于在定时器管理单元12启动定时器之后,在预设时长内通过下行控制信息DCI为终端分配上行资源,上行资源用于终端向反馈处理单元13反馈数据包接收结果。
较佳地,资源分配单元14在预设时长内通过DCI为终端分配上行资源之后,若反馈处理单元13在上行资源上没有收到终端反馈的数据包接收结果、且定时器未超时,资源分配单元14还用于:
资源分配单元14在预设时长内通过DCI为终端重新分配上行资源,上行资源用于终端向反馈处理单元14反馈数据包接收结果。
较佳地,若第二设备为基站,反馈处理单元13还用于:
若数据包传输单元11向基站本次传输的数据包为需要传输的最后一个数据包,则当反馈处理单元13没有接收到基站反馈的数据包接收结果、且定时器未超时时,反馈处理单元13确认基站接收数据包成功,并触发定时器管理单元12关闭定时器。
通过实施例一中的数据包传输单元11、定时器管理单元12、反馈处理单元13以及资源分配单元14,具体地,通过定时器管理单元12根据数据包的最大传输时间设置定时器,当数据包传输单元11向第二设备传输数据包时,定时器管理单元12启动定时器,即通过数据包最大传输时间对数据包传输单元11向第二设备传输数据包的时间进行限制,当第二设备接收数据包失败时,数据包传输单元11在数据包最大传输时间内向第二设备重传该数据包。本发明实施例一在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送 端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
实施例二
如图2所示,本发明实施例提供了一种数据包传输装置,图2所示的装置支持图4所示的方法,该装置包括:
数据包接收单元21,用于接收第一设备传输的数据包;
定时器管理单元22,用于根据数据包最大接收时间设置定时器;当数据包接收单元21接收第一设备传输的数据包时,启动定时器;
反馈处理单元23,用于在定时器管理单元22启动定时器之后,向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收失败消息、定时器未超时时,触发数据包接收单元21接收第一设备重传的数据包;或者
用于在定时器管理单元22启动定时器之后,向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,触发定时器管理单元22关闭定时器;或者
用于在定时器管理单元22启动定时器之后,向第一设备反馈数据包接收结果,当数据包接收结果为数据包失败消息、且定时器超时时,通知数据包接收单元21放弃接收第一设备传输的数据包。
较佳地,第一设备为基站;或者第一设备为终端。
较佳地,当第一设备为基站时,反馈处理单元23向第一设备反馈数据包接收结果时,具体用于:
反馈处理单元23通过物理上行链路共享信道PUSCH向基站反馈数据包接收结果。
较佳地,当第一设备为终端时,反馈处理单元23向第一设备反馈数据包接收结果时,具体用于:
反馈处理单元23通过下行控制信息DCI向终端反馈数据包接收结果。
较佳地,若第一设备为基站,该装置还包括:
资源接收单元24,用于在定时器管理单元22启动定时器之后,在预设时 长内通过下行控制信息DCI接收基站为其分配的上行资源,上行资源用于反馈处理单元23向基站反馈数据包接收结果。
较佳地,资源接收单元24在预设时长内通过DCI接收基站为其分配的上行资源之后,若基站在上行资源上没有收到反馈处理单元23反馈的数据包接收结果,资源分配单元24还用于:
资源接收单元24在预设时长内通过DCI接收基站为其重新分配的上行资源,上行资源用于反馈处理单元23向基站反馈数据包接收结果。
较佳地,若第一设备为终端,数据包接收单元21接收的终端本次传输的数据包为需要接收的最后一个数据包,则当数据包接收单元21接收终端传输的数据包成功时,反馈处理单元23不需要向终端反馈数据包接收成功消息。
通过实施例二中的数据包接收单元21、定时器管理单元22、反馈处理单元23以及资源接收单元24,具体地,通过定时器管理单元根据数据包最大接收时间设置定时器,当数据包接收单元接收第一设备传输的数据包时,定时器管理单元启动定时器,即通过数据包最大接收时间对数据包接收单元接收数据包的时间进行限制,当数据包接收单元接收数据包失败时,数据包接收单元在数据包最大接收时间内接收第一设备重传的数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
实施例三
如图3所示,在第一设备侧,本发明实施例提供了一种数据包传输方法,该方法包括:
S301、第一设备根据数据包的最大传输时间设置定时器;
S302、当第一设备向第二设备传输数据包时,第一设备启动定时器;
S303、第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第一设备向第二设备重传数据包;或者
第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,第一设备关闭定时器;或者
第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器超时时,第一设备放弃向第二设备传输数据包。
在图3所示的数据包传输方法中,若第一设备为基站,第二设备为终端,此时图3为NB M2M系统下行数据包传输过程中基站侧的操作;若第一设备为终端,第二设备为基站,此时图3为NB M2M系统上行数据包传输过程中终端侧的操作。
较佳地,S303中第一设备接收第二设备反馈的数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第一设备向第二设备重传数据包,包括:
当第二设备在数据包最大接收时间内接收数据包失败时,第一设备接收第二设备反馈的数据包接收失败消息,其中,数据包最大接收时间是指第二设备接收一个数据包所允许的最大时长;
定时器未超时,第一设备向第二设备重传数据包。
需要说明的是,第一设备向第二设备重传同一数据包的次数可以为多次,每当第一设备在数据包最大传输时间内接收到第二设备反馈的接收数据包失败的消息时,第一设备便向第二设备重传该数据包。
较佳地,S303中当数据包接收结果为数据包接收成功消息、且定时器未超时时,第一设备关闭定时器,此时第一设备与第二设备在数据包最大传输时间内完成本次数据包的传输,若存在需要传输的下一个数据包,第一设备以图3所示的方法向第二设备传输下一个数据包。
较佳地,S303中第一设备接收第二设备反馈的数据包接收结果,包括:
当第一设备为基站,第二设备为终端时,基站通过物理上行链路共享信道(Physical Uplink Shared Channel,PUSCH)接收终端反馈的数据包接收结果;或者
当第一设备为终端,第二设备为基站时,终端通过下行控制信息 (Downlink Control Information,DCI)接收基站反馈的数据包接收结果。
较佳地,若第一设备为基站,第二设备为终端,此时图3所示为NB M2M系统下行数据包传输过程中基站侧的操作,在S302第一设备启动定时器之后,该方法还包括:
基站在预设时长内通过下行控制信息DCI为终端分配上行资源,上行资源用于终端向基站反馈数据包接收结果。
其中,预设时长是指基站为终端分配上行资源允许占用的最大时间长度,即预设时长为基站进行下行反馈资源调度的最长时间;预设时长可以用一个定时器来定时,预设时长可以是以下行控制信息DCI间隔周期为单位,也可以是以其他时间长度为单位,例如毫秒、秒等,其中,DCI间隔周期是指相邻两个DCI之间的时间间隔,DCI间隔周期可以根据业务或系统特点进行设置,本发明中不具体限定DCI间隔周期;终端需要在预设时长内接收基站发送的所有DCI,直到获得用于反馈数据包接收结果的上行资源。
例如:图7为下行控制信息DCI间隔周期的结构示意图,该图示中相邻两个DCI之间的时间间隔为32个时隙,DCI携带的信息可以包括用于传输数据包的上行或下行资源的指示信息,以及上行数据包传输过程中数据包接收结果。在下行数据包传输过程中,基站为终端分配的下行资源的指示信息以及上行资源的指示信息,可以在不同的DCI中携带,也可以在同一DCI中携带,其中指示信息用于指示下行资源的位置或上行资源的位置,下行资源用于基站向终端传输数据包,上行资源用于终端向基站反馈数据包接收结果;下行资源的指示信息占用的资源与上行资源的指示信息占用的资源,在时间间隔上至少包括基站向终端传输数据包所需时间与终端接收数据包后所需处理时间之和。
在现有技术中,由于NB M2M系统中频道资源有限,没有专门用于接收端向发送端反馈数据包接收结果的反馈资源。现有的HARQ方案中通过预留固定的反馈资源,用于接收端向发送端反馈数据包的接收结果,在NB M2M系统中由于各个数据包的传输所需时间长度不一致,因此采用在传输数据包之 前预留固定反馈资源的方法,容易造成资源浪费。在本发明实施例中,基站向终端传输数据包之后,通过基站在预设时长内为终端分配用于反馈数据包接收结果的上行资源的方法,克服了NB M2M系统中采用现有技术预留固定的反馈资源而造成资源浪费的问题。基站在向终端传输数据包之后,基站启动反馈窗,反馈窗用于规定预设时长,终端只需要监听反馈窗规定的预设时长内的DCI,便可以得到用于反馈数据包接收结果的上行资源,进而降低了终端的耗电量。
较佳地,基站在预设时长内通过DCI为终端分配上行资源之后,若基站在上行资源上没有收到终端反馈的数据包接收结果、且定时器未超时,该方法还包括:
基站在预设时长内通过DCI为终端重新分配上行资源,上行资源用于终端向基站反馈数据包接收结果。
在下行数据包传输过程中,考虑到基站接收终端反馈的数据包接收结果失败的情况,本发明实施例通过基站在预设时长内通过DCI为终端重新分配用于反馈数据包接收结果的上行资源,这样,终端便可以利用重新分配的上行资源向基站反馈数据包接收结果,进而解决了基站接收数据包接收结果失败的问题。导致基站接收终端反馈的数据包接收结果失败的情况的原因有两种:一是终端接收基站为其分配的上行资源失败,上行资源用于反馈数据包接收结果;二是终端利用上行资源向基站反馈数据包接收结果失败。
较佳地,若第一设备为终端,第二设备为基站,该方法还包括:
若终端向基站本次传输的数据包为需要传输的最后一个数据包,则当终端没有接收到基站反馈的数据包接收结果、且定时器未超时时,终端确认基站接收数据包成功,并关闭定时器。
针对上行数据包传输过程,若终端向基站本次传输的数据包为需要传输的最后一个数据包,现有技术中基站仍需要向终端反馈数据包接收结果。在本发明实施例中,当基站成功接收终端传输的最后一个数据包时,基站不需要向终端反馈数据包接收成功的消息,这样可以减少基站向终端发送资源调 度信息时使用的信令,进而达到节约频谱资源的目的。
在上行数据包传输过程中,若终端向基站本次传输的数据包不是需要传输的最后一个数据包,且基站接收数据包成功,终端在接收基站反馈的数据包接收成功消息的同时,接收基站为其分配的上行资源,该上行资源用于终端向基站传输下一个数据包。
实施例三中,通过第一设备根据数据包的最大传输时间设置定时器,当第一设备向第二设备传输数据包时,第一设备启动定时器,即通过数据包最大传输时间对第一设备向第二设备传输数据包的时间进行限制,当第二设备接收数据包失败时,第一设备在数据包最大传输时间内向第二设备重传该数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
实施例四
如图4所示,在第二设备侧,本发明实施例提供了一种数据包传输方法,该方法包括:
S401、第二设备根据数据包最大接收时间设置定时器;
S402、当第二设备接收第一设备传输的数据包时,第二设备启动定时器;
S403、第二设备向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收失败消息、且定时器未超时时,第二设备接收第一设备重传的数据包;或者
第二设备向第一设备反馈数据包接收结果,当数据包接收结果为数据包接收成功消息、且定时器未超时时,第二设备关闭定时器;或者
第二设备向第一设备反馈数据包接收结果,当数据包接收结果为数据包失败消息、且定时器超时时,第二设备放弃接收第一设备传输的数据包。
在图4所示的数据包传输方法中,若第一设备为基站,第二设备为终端,此时图4为NB M2M系统下行数据包传输过程中终端侧的操作;若第一设备为 终端,第二设备为基站,此时图4为NB M2M系统上行数据包传输过程中基站侧的操作。
S403中当数据包接收结果为数据包接收成功消息、且定时器未超时时,第二设备关闭定时器,此时第二设备在数据包最大接收时间内完成本次数据包的接收,若存在需要接收的下一个数据包,第二设备以图4所示的方法继续接收第一设备传输的下一个数据包。
较佳地,S403中第二设备向第一设备反馈数据包接收结果,包括:
当第一设备为基站,第二设备为终端时,终端通过物理上行链路共享信道PUSCH向基站反馈数据包接收结果;或者
基站通过下行控制信息DCI向终端反馈数据包接收结果。
较佳地,若第一设备为基站,第二设备为终端,在第二设备启动定时器之后,该方法还包括:
终端在预设时长内通过下行控制信息DCI接收基站为其分配的上行资源,上行资源用于终端向基站反馈数据包接收结果。
其中,预设时长是指基站为终端分配上行资源所允许占用的最大的时间长度,即预设时长为基站进行下行反馈资源调度的最长时间;预设时长可以是以下行控制信息DCI间隔周期为单位,也可以是以其他时间长度为单位,例如毫秒、秒等,其中,DCI间隔周期是指相邻两个DCI之间的时间间隔,DCI间隔周期可以根据业务或系统特点进行设置,本发明中不具体限定DCI间隔周期;终端需要在预设时长内接收基站发送的所有DCI,直到获得用于反馈该数据包接收结果的上行资源。
在现有技术中,由于NB M2M系统中频道资源有限,没有专门用于接收端向发送端反馈数据包的接收结果的反馈资源。现有的HARQ方案中通过预留固定的反馈资源,用于接收端向发送端反馈数据包的接收结果,在NB M2M系统中由于各个数据包的传输所需时间长度不一致,因此采用在传输数据包之前预留固定反馈资源的方法,容易造成资源浪费。在本发明实施例中,基站向终端传输数据包之后,通过基站在预设时长内为终端分配用于反馈数据 包接收结果的上行资源的方法,克服了采用现有技术预留固定的反馈资源而造成资源浪费的问题。基站在向终端传输数据包之后,基站启动反馈窗,反馈窗用于规定预设时长,终端只需要监听反馈窗规定的预设时长内的DCI,便可以得到用于反馈数据包接收结果的上行资源,进而降低了终端的耗电量。
较佳地,终端在预设时长内通过DCI接收基站为其分配的上行资源之后,若基站在上行资源上没有收到终端反馈的数据包接收结果,该方法还包括:
终端在预设时长内通过DCI接收基站为其重新分配的上行资源,上行资源用于终端向基站反馈数据包接收结果。
在下行数据包传输过程中,考虑到基站接收终端反馈的数据包接收结果失败的情况,即基站在数据包最大传输时间内没有收到终端反馈的数据包接收结果,本发明实施例通过终端接收基站为其重新分配的上行资源,这样,终端便可以利用重新分配的上行资源向基站反馈数据包接收结果,进而解决了基站接收数据包接收结果失败的问题。导致基站接收终端反馈的数据包接收结果失败的情况的原因有两种:一是终端接收基站为其分配的上行资源失败,上行资源用于反馈数据包接收结果;二是终端利用上行资源向基站反馈数据包接收结果失败。
较佳地,若第一设备为终端,第二设备为基站,基站接收的终端本次传输的数据包为需要接收的最后一个数据包,则当基站接收终端传输的数据包成功时,基站不需要向终端反馈数据包接收成功消息。
针对上行数据包传输过程,若终端向基站本次传输的数据包为需要传输的最后一个数据包,现有技术中基站仍需要向终端反馈数据包接收结果。在本发明实施例中,当基站成功接收终端传输的最后一个数据包时,基站不需要向终端反馈数据包接收成功的消息,这样可以减少基站向终端发送资源调度信息时使用的信令,以达到节约频谱资源的目的。
在上行数据包传输过程中,若终端向基站本次传输的数据包不是需要传输的最后一个数据包,且基站接收数据包成功,第终端在接收基站反馈的数据包接收成功消息的同时,接收基站为其分配的上行资源,该上行资源用于 终端向基站传输下一个数据包。
实施例四中,通过第二设备根据数据包最大接收时间设置定时器,当第二设备接收第一设备传输的数据包时,第二设备启动定时器,即通过数据包最大接收时间对第二设备接收数据包的时间进行限制,当第二设备接收数据包失败时,第二设备在数据包最大接收时间内接收第一设备重传的数据包。本发明实施例在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
实施例五
如图5所示,本发明实施例提供的一种下行数据包传输方法,图5中为下行数据包传输过程中基站与终端的交互过程,具体步骤如下:
S501、基站根据数据包最大传输时间设置基站侧定时器;
S502、终端根据数据包最大接收时间设置终端侧定时器;
S503、基站为终端分配下行资源,同时启动基站侧定时器,下行资源用于基站向终端传输数据包;
S504、基站向终端发送下行资源;
S505、终端接收基站发送的下行资源,同时启动终端侧定时器,下行资源用于基站向终端传输数据包;
S506、基站利用下行资源向终端传输数据包;
S507、终端利用下行资源接收基站传输的数据包;
S508、基站在预设时长内为终端分配物理上行链路共享信道PUSCH上行资源,该上行资源用于终端向基站反馈数据包接收结果;
S509、基站在预设时长内通过下行控制信息DCI向终端发送上行资源;
在步骤S506之后,基站启动反馈窗,反馈窗用于规定预设时长;在反馈窗规定的预设时长内,基站通过下行控制信息DCI为终端分配上行资源,该上行资源用于终端向基站反馈数据包接收结果,进而解决了现有技术中采用预 留固定的反馈资源而造成资源浪费的问题。其中,预设时长是指基站为终端分配上行资源允许占用的最大时间长度,该预设时长在基站向终端传输数据包之后,在此预设时长内基站通过下行控制信息DCI为终端分配用于反馈数据包接收结果的上行资源,同时终端在预设时长内接收基站发送的所有DCI,以获得用于反馈数据包接收结果的上行资源;预设时长可以用一个定时器来定时,预设时长可以是以下行控制信息DCI间隔周期为单位,也可以是以其他时间长度为单位,例如毫秒、秒等。
S510、终端在预设时长内通过下行控制信息DCI接收基站为其分配的物理上行链路共享信道PUSCH上行资源,该上行资源用于终端向基站反馈数据包接收结果;
在步骤S507之后,终端启动反馈窗,反馈窗用于规定预设时长;在反馈窗规定的预设时长内,终端接收基站发送的所有DCI,以获得用于反馈数据包接收结果的上行资源;终端侧反馈窗规定的预设时长与基站侧反馈窗规定的预设时长相同,预设时长可以用一个定时器来定时,预设时长可以是以下行控制信息DCI间隔周期为单位,也可以是以其他时间长度为单位,例如毫秒、秒等。通过终端在反馈窗规定的预设时长内接收基站为其分配的上行资源,该上行资源用于终端向基站反馈数据包接收结果,解决了现有技术中采用预留固定的反馈资源而造成资源浪费的问题。
在终端侧定时器定时范围内(即数据包最大接收时间内),若终端接收数据包成功,则执行S511至S513;若终端接收数据包失败,则执行S514至S519;若终端侧定时器超时(即终端接收基站传输的数据包的时间超过数据包最大接收时间),则终端放弃接收基站本次传输的数据包。
S511、终端利用物理上行链路共享信道PUSCH上行资源向基站反馈数据包接收成功消息;
S512、终端关闭终端侧定时器;
此时终端接收基站本次传输的数据包完成,若存在需要接收的下一个数据包,终端以同样的方法接收基站传输的下一个数据包。
S513、基站收到终端反馈的数据包接收成功消息,同时关闭基站侧定时器;
此时基站向终端本次传输数据包完成,若存在需要传输的下一个数据包,基站以同样的方法向终端传输下一个数据包。
S514、终端利用物理上行链路共享信道PUSCH上行资源向基站反馈数据包接收失败消息;
S515、基站接收终端反馈的数据包接收失败消息,在基站侧定时器定时范围内(即数据包最大传输时间内),基站为终端重新分配用于传输数据包的下行资源;
在基站收到终端反馈的数据包接收失败消息后,若截至此时基站侧定时器超时(即基站本次向终端传输数据包的时间已超过数据包最大传输时间),则基站放弃向终端重传数据包。
S516、基站向终端发送下行资源;
S517、终端接收基站为其重新分配的用于传输数据包的下行资源;
S518、基站利用重新分配的下行资源向终端重传数据包;
在步骤S518之后,基站重新启动反馈窗,反馈窗用于规定预设时长,在反馈窗规定的预设时长内,基站通过下行控制信息DCI为终端分配上行资源,上行资源用于终端向基站反馈数据包接收结果;
S519、终端利用重新分配的下行资源接收基站重传的数据包;
在步骤S519之后,终端重新启动反馈窗,在反馈窗规定的预设时长内,终端接收基站发送的所有DCI,以获得用于反馈数据包接收结果的上行资源;终端侧反馈窗规定的预设时长与基站侧反馈窗规定的预设时长相同。
在终端侧定时器定时范围内(即数据包最大接收时间内),若终端成功接收基站重传的数据包,则执行S511至S513;若终端接收基站重传的数据包失败,则执行S514至S519。
实施例五考虑到基站接收终端反馈的数据包接收结果失败的情况(即基站在用于反馈数据包接收结果的上行资源上没有接收到终端反馈的数据包接 收结果),此时在步骤S510之后,图5所示的方法还包括:
S520、基站在预设时长内为终端重新分配上行资源,上行资源用于终端向基站反馈数据包接收结果;
S521、基站在预设时长内通过下行控制信息DCI向终端发送重新分配的上行资源;
S522、终端在预设时长内通过下行控制信息DCI接收基站为重新分配的上行资源,上行资源用于终端向基站反馈数据包接收结果。
后续终端利用该上行资源向基站反馈数据包接收结果,具体方法与上述步骤S511至S519相同,此处不再赘述。
导致基站接收终端反馈的数据包接收结果失败的情况的原因有两种:一是终端接收基站为其分配的上行资源失败,上行资源用于终端向基站反馈数据包接收结果;二是终端利用上行资源向基站反馈数据包接收结果失败。
通过实施例五,实现了NB M2M系统下行数据的传输过程,通过数据包最大传输时间对基站向终端传输数据包的时间进行限制,通过数据包最大接收时间对终端接收基站传输的数据包的时间进行限制,使得NB M2M系统中各个数据包下行传输时间均衡;通过基站在反馈窗规定的预设时长内为终端分配用于反馈数据包接收结果的上行资源,克服了现有技术中采用预留固定的反馈资源而造成资源浪费的问题。基站在向终端传输数据包之后启动反馈窗,终端接收基站传输的数据包之后启动反馈窗,终端侧反馈窗规定的预设时长与基站侧反馈窗规定的预设时长相同,终端只需要监听反馈窗规定的预设时长内的DCI,以获得基站为其分配的用于反馈数据包接收结果的上行资源,克服了采用现有技术预留固定的反馈资源而造成资源浪费的问题,同时有利于终端节省电能。通过基站为终端重新分配用于反馈数据包接收结果的上行资源,解决了基站接收终端反馈的数据包接收结果失败的问题。
实施例六
如图6所示,本发明实施例提供了上行数据包传输方法,图6中为上行数据包传输过程中基站与终端的交互过程,具体步骤如下:
S601、基站根据数据包最大接收时间设置基站侧定时器;
S602、终端根据数据包最大传输时间设置终端侧定时器;
S603、基站为终端分配上行资源,同时启动基站侧定时器,上行资源用于终端向基站传输数据包;
S604、基站向终端发送上行资源;
S605、终端接收基站发送的上行资源,同时启动终端侧定时器,上行资源用于终端向基站传输数据包;
S606、终端利用上行资源向基站传输数据包;
S607、基站接收终端传输的数据包;
在步骤S606之后,终端启动反馈窗,反馈窗用于规定预设时长;在反馈窗规定的预设时长内,终端通过下行控制信息DCI接收基站反馈的数据包接收结果。在步骤S607之后,基站启动反馈窗,反馈窗用于规定预设时长;在反馈窗规定的预设时长内,基站通过下行控制信息DCI向终端反馈数据包接收结果。基站侧反馈窗规定的预设时长与终端侧反馈窗规定的预设时长相同,该预设时长可以用一个定时器来定时,预设时长可以是以下行控制信息DCI间隔周期为单位,也可以是以其他时间长度为单位,例如毫秒、秒等。
在基站侧定时器定时范围内(即数据包最大接收时间内),若基站接收数据包成功,则执行S608至S610;若基站接收数据包失败,则执行S611至S616;若基站侧定时器超时(即基站接收终端传输的数据包的时间超过数据包最大接收时间),则基站放弃接收终端本次传输的数据包。
S608、基站在预设时长内通过下行控制信息DCI向终端反馈数据包接收成功消;
S609、基站关闭基站侧定时器;
此时基站接收终端本次传输的数据包完成,若终端向基站本次传输的数据包不是需要传输的最后一个数据包,则在S608基站向终端发送的下行控制信息DCI中还可以包括,用于终端传输下一个数据包的上行资源。
S610、终端在预设时长内通过下行控制信息DCI接收基站反馈的数据包接 收成功消息,关闭终端侧定时器;
S611、基站在预设时长内通过下行控制信息DCI向终端反馈数据包接收失败消息;
S612、基站为终端重新分配上行资源,上行资源用于终端向基站传输数据包;
S613、基站向终端发送重新分配的上行资源;
S614、终端接收基站发送的重新分配的上行资源,上行资源用于终端向基站传输数据包;
终端在终端侧定时器定时范围内(即数据包最大传输时间内),执行S615;
S615、终端利用重新分配的上行资源向基站重传数据包;
若截至此时终端侧定时器超时(即终端本次向基站传输数据包的时间已超过数据包最大传输时间),则终端放弃向基站重传数据包。
S616、基站接收终端重传的数据包;
在步骤S615之后,终端重新启动反馈窗,反馈窗用于规定预设时长,在反馈窗规定的预设时长内,终端通过下行控制信息DCI接收基站反馈的数据包接收结果。在步骤S616之后,基站重新启动反馈窗,在反馈窗规定的预设时长内,基站通过下行控制信息DCI向终端反馈数据包接收结果。基站侧反馈窗规定的预设时长与终端侧反馈窗规定的预设时长相同。
在基站侧定时器定时范围内(即数据包最大接收时间内),若基站接收终端重传的数据包成功,则执行S608至S610;若基站接收终端重传的数据包失败,则执行S611至S616。
若终端向基站本次传输的数据包为需要传输的最后一个数据包,且基站在基站侧定时器定时范围内(数据包最大接收时间内)接收数据包成功,图6所示的步骤S608至S610可替换为S617至S618,具体如下:
S617、基站不需要向终端反馈数据包接收成功消息,基站关闭基站侧定时器;
S618、终端在终端侧定时器定时范围内(数据包最大传输时间内)没有 收到基站反馈的数据包接收成功消息,终端关闭终端侧定时器;
当基站成功接收终端传输的最后一个数据包时,基站不需要向终端反馈数据包接收成功消息,这样可以减少基站向终端发送资源调度信息时使用的信令,以达到节约频谱资源的目的。其中,最后一个数据包的指示可以通过终端向基站上报的缓存状态报告(Buffer Status Reports,BSR)通知基站,也可以在数据包的包头信息中携带是否是最后一个数据包的指示信息。
通过实施例六,实现了NB M2M系统上行数据的传输过程,通过数据包最大传输时间对终端向基站传输数据包的时间进行限制,通过数据包最大接收时间对基站接收终端传输的数据包的时间进行限制,使得NB M2M系统中各个数据包上行传输时间均衡。当基站成功接收终端传输的最后一个数据包时,基站不需要向终端反馈接收该数据包成功的消息,这样可以减少基站向终端发送资源调度信息时使用的信令,以达到节约频谱资源的目的。
实施例七
如图8所示,本发明实施例提供了一种数据包传输装置,图7所示的装置支持图3所示的方法,该装置包括:
存储器81,用于存储向第二设备传输的数据包;
收发器82,用于向第二设备传输所述存储器81存储的数据包;
处理器83,用于根据数据包的最大传输时间设置定时器;当所述收发器82向第二设备传输数据包时,启动定时器;
所述收发器82,还用于在所述处理器83启动定时器之后,接收第二设备反馈的数据包接收结果;
所述处理器83,还用于当所述收发器82接收的数据包接收结果为数据包接收失败消息、且定时器未超时时,触发所述收发器82向第二设备重传数据包;或者
还用于当所述收发器82接收的数据包接收结果为数据包接收成功消息、且定时器未超时时,关闭定时器;或者
还用于当所述收发器82接收的数据包接收结果为数据包接收失败消息、 且定时器超时时,通知所述收发器82放弃向第二设备传输数据包。
较佳地,所述处理器83在触发所述收发器82向第二设备重传数据包时,具体用于:
当第二设备在数据包最大接收时间内接收数据包失败时,所述处理器83得知所述收发器82接收第二设备反馈的数据包接收失败消息,其中,数据包最大接收时间是指第二设备接收一个数据包所允许的最大时长;
定时器未超时,所述处理器83触发所述收发器82向第二设备重传数据包。
较佳地,第二设备为终端,或者第二设备为基站。
较佳地,当第二设备为终端时,所述收发器82在接收第二设备反馈的数据包接收结果时,具体用于:
所述收发器82通过物理上行链路共享信道PUSCH接收终端反馈的数据包接收结果。
较佳地,当第二设备为基站时,所述收发器82在接收第二设备反馈的数据包接收结果时,具体用于:
所述收发器82通过下行控制信息DCI接收基站反馈的数据包接收结果。
较佳地,若第二设备为终端,
所述处理器83,还用于在启动定时器之后,在预设时长内为终端分配上行资源,并触发所述收发器82将上行资源发送给终端,上行资源用于终端向所述收发器82反馈数据包接收结果;
所述收发器82,还用于在预设时长内通过下行控制信息DCI将上行资源发送给终端,上行资源用于终端向所述收发器82反馈数据包接收结果。
较佳地,所述收发器82在预设时长内通过下行控制信息DCI将上行资源发送给终端之后,若所述收发器82在上行资源上没有收到终端反馈的数据包接收结果、且定时器未超时,
所述处理器83,还用于在预设时长内为终端重新分配上行资源,并触发所述收发器82将上行资源重新发送给终端,上行资源用于终端向所述收发器 82反馈数据包接收结果;
所述收发器82,还用于在预设时长内通过下行控制信息DCI将上行资源重新发送给终端,上行资源用于终端向所述收发器82反馈数据包接收结果。
较佳地,若第二设备为基站,所述处理器83还用于:
若所述收发器82向基站本次传输的数据包为需要传输的最后一个数据包,则当所述收发器82没有接收到基站反馈的数据包接收结果、且定时器未超时时,所述处理器83确认基站接收数据包成功,并关闭定时器。
通过实施例七中的存储器81、收发器82以及处理器83,在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
实施例八
如图9所示,本发明实施例提供了一种数据包传输装置,图9所示的装置支持图4所示的方法,该装置包括:
收发器91,用于接收第一设备传输的数据包;
存储器92,用于存储所述收发器91接收的数据包;
处理器93,用于根据数据包最大接收时间设置定时器;当所述收发器91接收第一设备传输的数据包时,启动定时器;
所述收发器91,还用于向第一设备反馈数据包接收结果;
所述处理器93,还用于当所述收发器91反馈的数据包接收结果为数据包接收失败消息、且定时器未超时时,触发所述收发器91接收第一设备重传的数据包;或者
还用于当所述收发器91反馈的数据包接收结果为数据包接收成功消息、且定时器未超时时,关闭定时器;或者
还用于当所述收发器91反馈的数据包接收结果为数据包失败消息、且定时器超时时,通知所述收发器91放弃接收第一设备传输的数据包。
较佳地,第一设备为基站;或者第一设备为终端。
较佳地,当第一设备为基站时,所述收发器91向第一设备反馈数据包接收结果时,具体用于:
所述收发器91通过物理上行链路共享信道PUSCH向基站反馈数据包接收结果。
较佳地,当第一设备为终端时,所述收发器91向第一设备反馈数据包接收结果时,具体用于:
所述收发器91通过下行控制信息DCI向终端反馈数据包接收结果。
较佳地,若第一设备为基站,所述收发器91还用于:
在所述处理器93启动定时器之后,所述收发器91在预设时长内通过下行控制信息DCI接收基站为其分配的上行资源,上行资源用于所述收发器91向基站反馈数据包接收结果。
较佳地,所述收发器91在预设时长内通过DCI接收基站为其分配的上行资源之后,若基站在上行资源上没有收到所述收发器91反馈的数据包接收结果,所述收发器91还用于:
所述收发器91在预设时长内通过DCI接收基站为其重新分配的上行资源,上行资源用于收发器91向基站反馈数据包接收结果。
较佳地,若第一设备为终端,所述收发器91接收的终端本次传输的数据包为需要接收的最后一个数据包,则当所述收发器91接收终端传输的数据包成功时,所述收发器91不需要向终端反馈数据包接收成功消息。
通过实施例八中的收发器、存储器、以及处理器,在实现NB M2M系统的上行或下行数据包的传输过程中,使得各个数据包传输时间均衡;克服了现有技术中通过数据包最大重传次数对发送端向接收端重传数据包的次数进行限制,而产生的各个数据包传输时间不均衡的问题。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明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。
本发明是参照根据本发明实施例的方法、设备(系统)、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。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作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发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样,倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (30)

  1. 一种数据包传输装置,其特征在于,该装置包括:
    数据包传输单元,用于向第二设备传输数据包;
    定时器管理单元,用于根据数据包的最大传输时间设置定时器;当所述数据包传输单元向第二设备传输数据包时,启动所述定时器;
    反馈处理单元,用于在所述定时器管理单元启动所述定时器之后,接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器未超时时,触发所述数据包传输单元向所述第二设备重传数据包;或者
    用于在所述定时器管理单元启动所述定时器之后,接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收成功消息、且所述定时器未超时时,触发所述定时器管理单元关闭所述定时器;或者
    用于在所述定时器管理单元启动所述定时器之后,接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器超时时,通知所述数据包传输单元放弃向所述第二设备传输数据包。
  2. 如权利要求1所述的装置,其特征在于,所述反馈处理单元触发所述数据包传输单元向所述第二设备重传数据包时,具体用于:
    当所述第二设备在数据包最大接收时间内接收数据包失败时,所述反馈处理单元接收所述第二设备反馈的数据包接收失败消息,其中,所述数据包最大接收时间是指所述第二设备接收一个数据包所允许的最大时长;
    所述定时器未超时,所述反馈处理单元触发所述数据包传输单元向所述第二设备重传所述数据包。
  3. 如权利要求1或2任一权项所述的装置,其特征在于,
    所述第二设备为终端,或者所述第二设备为基站。
  4. 如权利要求1所述的装置,其特征在于,当所述第二设备为终端时,所述反馈处理单元在接收所述第二设备反馈的数据包接收结果时,具体用于:
    所述反馈处理单元通过物理上行链路共享信道PUSCH接收所述终端反馈的数据包接收结果。
  5. 如权利要求1所述的装置,其特征在于,当所述第二设备为基站时,所述反馈处理单元在接收所述第二设备反馈的数据包接收结果时,具体用于:
    所述反馈处理单元通过下行控制信息DCI接收所述基站反馈的数据包接收结果。
  6. 如权利要求1所述的装置,其特征在于,若所述第二设备为终端,该装置还包括:
    资源分配单元,用于在所述定时器管理单元启动所述定时器之后,在预设时长内通过下行控制信息DCI为所述终端分配上行资源,所述上行资源用于所述终端向所述反馈处理单元反馈数据包接收结果。
  7. 如权利要求6所述的装置,其特征在于,所述资源分配单元在预设时长内通过DCI为所述终端分配上行资源之后,若所述反馈处理单元在所述上行资源上没有收到所述终端反馈的数据包接收结果、且所述定时器未超时,所述资源分配单元还用于:
    所述资源分配单元在预设时长内通过DCI为所述终端重新分配上行资源,所述上行资源用于所述终端向所述反馈处理单元反馈数据包接收结果。
  8. 如权利要求1所述的装置,其特征在于,若所述第二设备为基站,所述反馈处理单元还用于:
    若所述数据包传输单元向所述基站本次传输的数据包为需要传输的最后一个数据包,则当所述反馈处理单元没有接收到所述基站反馈的数据包接收结果、且所述定时器未超时时,所述反馈处理单元确认所述基站接收数据包成功,并触发所述定时器管理单元关闭所述定时器。
  9. 一种数据包传输装置,其特征在于,该装置包括:
    数据包接收单元,用于接收第一设备传输的数据包;
    定时器管理单元,用于根据数据包最大接收时间设置定时器;当所述数据包接收单元接收第一设备传输的数据包时,启动所述定时器;
    反馈处理单元,用于在所述定时器管理单元启动所述定时器之后,向所述第一设备反馈数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器未超时时,触发所述数据包接收单元接收所述第一设备重传的数据包;或者
    用于在所述定时器管理单元启动所述定时器之后,向所述第一设备反馈数据包接收结果,当所述数据包接收结果为数据包接收成功消息、且所述定时器未超时时,触发所述定时器管理单元关闭所述定时器;或者
    用于在所述定时器管理单元启动所述定时器之后,向所述第一设备反馈数据包接收结果,当所述数据包接收结果为数据包失败消息、且所述定时器超时时,通知所述数据包接收单元放弃接收所述第一设备传输的数据包。
  10. 如权利要求9所述的方法,其特征在于,
    所述第一设备为基站;或者所述第一设备为终端。
  11. 如权利要求9所述的方法,其特征在于,当所述第一设备为基站时,所述反馈处理单元向所述第一设备反馈数据包接收结果时,具体用于:
    所述反馈处理单元通过物理上行链路共享信道PUSCH向所述基站反馈数据包接收结果。
  12. 如权利要求9所述的方法,其特征在于,当所述第一设备为终端时,所述反馈处理单元向所述第一设备反馈数据包接收结果时,具体用于:
    所述反馈处理单元通过下行控制信息DCI向所述终端反馈数据包接收结果。
  13. 如权利要求9所述的方法,其特征在于,若所述第一设备为基站,该装置还包括:
    资源接收单元,用于在所述定时器管理单元启动所述定时器之后,在预设时长内通过下行控制信息DCI接收所述基站为其分配的上行资源,所述上行资源用于所述反馈处理单元向所述基站反馈数据包接收结果。
  14. 如权利要求13所述的方法,其特征在于,所述资源接收单元在预设时长内通过DCI接收所述基站为其分配的上行资源之后,若所述基站在所述 上行资源上没有收到所述反馈处理单元反馈的数据包接收结果,所述资源分配单元还用于:
    所述资源接收单元在预设时长内通过DCI接收所述基站为其重新分配的上行资源,所述上行资源用于所述反馈处理单元向所述基站反馈数据包接收结果。
  15. 如权利要求9所述的方法,其特征在于,若所述第一设备为终端,所述数据包接收单元接收的所述终端本次传输的数据包为需要接收的最后一个数据包,则当所述数据包接收单元接收所述终端传输的数据包成功时,所述反馈处理单元不需要向所述终端反馈数据包接收成功消息。
  16. 一种数据包传输方法,其特征在于,该方法包括:
    第一设备根据数据包的最大传输时间设置定时器;
    当所述第一设备向第二设备传输数据包时,所述第一设备启动所述定时器;
    所述第一设备接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器未超时时,所述第一设备向所述第二设备重传数据包;或者
    所述第一设备接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收成功消息、且所述定时器未超时时,所述第一设备关闭所述定时器;或者
    所述第一设备接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器超时时,所述第一设备放弃向所述第二设备传输数据包。
  17. 如权利要求16所述的方法,其特征在于,所述第一设备接收所述第二设备反馈的数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器未超时时,所述第一设备向所述第二设备重传所述数据包,包括:
    当所述第二设备在数据包最大接收时间内接收数据包失败时,所述第一 设备接收所述第二设备反馈的数据包接收失败消息,其中,所述数据包最大接收时间是指所述第二设备接收一个数据包所允许的最大时长;
    所述定时器未超时,所述第一设备向所述第二设备重传所述数据包。
  18. 如权利要求16或17任一权项所述的方法,其特征在于,
    若所述第一设备为基站,则所述第二设备为终端;或者
    若所述第一设备为终端,则所述第二设备为基站。
  19. 如权利要求16所述的方法,其特征在于,当所述第一设备为基站,所述第二设备为终端时,所述第一设备接收所述第二设备反馈的数据包接收结果,包括:
    所述基站通过物理上行链路共享信道PUSCH接收所述终端反馈的数据包接收结果。
  20. 如权利要求16所述的方法,其特征在于,当所述第一设备为终端,所述第二设备为基站时,所述第一设备接收所述第二设备反馈的数据包接收结果,包括:
    所述终端通过下行控制信息DCI接收所述基站反馈的数据包接收结果。
  21. 如权利要求16所述的方法,其特征在于,若所述第一设备为基站,所述第二设备为终端,在所述第一设备启动所述定时器之后,该方法还包括:
    所述基站在预设时长内通过下行控制信息DCI为所述终端分配上行资源,所述上行资源用于所述终端向所述基站反馈数据包接收结果。
  22. 如权利要求21所述的方法,其特征在于,在所述基站在预设时长内通过DCI为所述终端分配上行资源之后,若所述基站在所述上行资源上没有收到所述终端反馈的数据包接收结果、且所述定时器未超时,该方法还包括:
    所述基站在预设时长内通过DCI为所述终端重新分配上行资源,所述上行资源用于所述终端向所述基站反馈数据包接收结果。
  23. 如权利要求16所述的方法,其特征在于,若所述第一设备为终端,所述第二设备为基站,该方法还包括:
    若所述终端向所述基站本次传输的数据包为需要传输的最后一个数据 包,则当所述终端没有接收到所述基站反馈的数据包接收结果、且所述定时器未超时时,所述终端确认所述基站接收数据包成功,并关闭所述定时器。
  24. 一种数据包传输方法,其特征在于,该方法包括:
    第二设备根据数据包最大接收时间设置定时器;
    当所述第二设备接收第一设备传输的数据包时,所述第二设备启动所述定时器;
    所述第二设备向所述第一设备反馈数据包接收结果,当所述数据包接收结果为数据包接收失败消息、且所述定时器未超时时,所述第二设备接收所述第一设备重传的数据包;或者
    所述第二设备向所述第一设备反馈数据包接收结果,当所述数据包接收结果为数据包接收成功消息、且所述定时器未超时时,所述第二设备关闭所述定时器;或者
    所述第二设备向所述第一设备反馈数据包接收结果,当所述数据包接收结果为数据包失败消息、且所述定时器超时时,所述第二设备放弃接收所述第一设备传输的数据包。
  25. 如权利要求24所述的方法,其特征在于,
    若所述第二设备为终端,则所述第一设备为基站;或者
    若所述第二设备为基站,则所述第一设备为终端。
  26. 如权利要求24所述的方法,其特征在于,当所述第一设备为基站,所述第二设备为终端时,所述第二设备向所述第一设备反馈数据包接收结果,包括:
    所述终端通过物理上行链路共享信道PUSCH向所述基站反馈数据包接收结果。
  27. 如权利要求24所述的方法,其特征在于,当所述第一设备为终端,所述第二设备为基站时,所述第二设备向所述第一设备反馈数据包接收结果,包括:
    所述基站通过下行控制信息DCI向所述终端反馈数据包接收结果。
  28. 如权利要求24所述的方法,其特征在于,若所述第一设备为基站,所述第二设备为终端,在所述第二设备启动所述定时器之后,该方法还包括:
    所述终端在预设时长内通过下行控制信息DCI接收所述基站为其分配的上行资源,所述上行资源用于所述终端向所述基站反馈数据包接收结果。
  29. 如权利要求28所述的方法,其特征在于,在所述终端在预设时长内通过DCI接收所述基站为其分配的上行资源之后,若所述基站在所述上行资源上没有收到所述终端反馈的数据包接收结果,该方法还包括:
    所述终端在预设时长内通过DCI接收所述基站为其重新分配的上行资源,所述上行资源用于所述终端向所述基站反馈数据包接收结果。
  30. 如权利要求24所述的方法,其特征在于,若所述第一设备为终端,所述第二设备为基站,所述基站接收的所述终端本次传输的数据包为需要接收的最后一个数据包,则当所述基站接收所述终端传输的数据包成功时,所述基站不需要向所述终端反馈数据包接收成功消息。
PCT/CN2014/090341 2014-11-05 2014-11-05 一种数据包传输装置及方法 WO2016070360A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2014/090341 WO2016070360A1 (zh) 2014-11-05 2014-11-05 一种数据包传输装置及方法
CN201480035961.4A CN105850068B (zh) 2014-11-05 2014-11-05 一种数据包传输装置及方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/090341 WO2016070360A1 (zh) 2014-11-05 2014-11-05 一种数据包传输装置及方法

Publications (1)

Publication Number Publication Date
WO2016070360A1 true WO2016070360A1 (zh) 2016-05-12

Family

ID=55908378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/090341 WO2016070360A1 (zh) 2014-11-05 2014-11-05 一种数据包传输装置及方法

Country Status (2)

Country Link
CN (1) CN105850068B (zh)
WO (1) WO2016070360A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108365924B (zh) 2017-01-26 2021-02-12 华为技术有限公司 一种数据重传方法、通信装置
CN110636549B (zh) * 2018-06-21 2022-04-12 华为技术有限公司 数据传输方法、网络设备以及终端设备
CN113132065A (zh) * 2019-12-30 2021-07-16 西安诺瓦星云科技股份有限公司 数据通信方法、装置及系统、存储介质和视频处理设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1914844A (zh) * 2003-12-29 2007-02-14 韩国电子通信研究院 移动通信系统中重传分组的方法和其上记录程序的计算机可读介质
CN101009537A (zh) * 2006-01-26 2007-08-01 华为技术有限公司 一种数据重传方法及系统
EP1855411A2 (en) * 2006-05-10 2007-11-14 Samsung Electronics Co.,Ltd. Retransmission apparatus and method for high-speed data processing
CN103873212A (zh) * 2012-12-12 2014-06-18 北京三星通信技术研究有限公司 一种上行ack/nack绑定传输的方法、终端及基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1914844A (zh) * 2003-12-29 2007-02-14 韩国电子通信研究院 移动通信系统中重传分组的方法和其上记录程序的计算机可读介质
CN101009537A (zh) * 2006-01-26 2007-08-01 华为技术有限公司 一种数据重传方法及系统
EP1855411A2 (en) * 2006-05-10 2007-11-14 Samsung Electronics Co.,Ltd. Retransmission apparatus and method for high-speed data processing
CN103873212A (zh) * 2012-12-12 2014-06-18 北京三星通信技术研究有限公司 一种上行ack/nack绑定传输的方法、终端及基站

Also Published As

Publication number Publication date
CN105850068A (zh) 2016-08-10
CN105850068B (zh) 2019-05-17

Similar Documents

Publication Publication Date Title
RU2761095C2 (ru) Способ связи и устройство связи
CN107645774B (zh) V2x网络中调度pc5口资源的确认方法
TWI622311B (zh) 處理上鏈路傳輸的裝置及方法
EP2170008B1 (en) Method and apparatus for improving interaction between scheduling request procedure and random access procedure
US20200021402A1 (en) Data transmission method and related device
EP4072051B1 (en) Uplink scheduling scheme in a mobile communication system
RU2018104694A (ru) Основанное на конкуренции сосуществование в совместно используемой среде связи
US20200186300A1 (en) Data Transmission Method, Terminal, and RAN Device
JP6262359B2 (ja) データ伝送方法及びデータ伝送システム並びにデータ伝送装置
EP3185450A1 (en) Data processing implementation method, base station and user equipment
JP2011510544A5 (ja) リアルタイムサービスの伝送方法、通信方法、通信装置、及び通信プログラム、並びにリソースの割り当て方法、割り当て装置、および割り当てプログラム
RU2754679C2 (ru) Система, устройство и способ передачи данных
RU2012110607A (ru) Управление передачей информации в сети бесповодной связи с узлом ретранслятора
WO2011082675A1 (zh) 调度请求的方法、装置及系统
WO2015010647A1 (zh) 一种bsr上报方法、上行资源分配方法及其设备
WO2015106554A1 (zh) 资源管理方法、装置及计算机存储介质
CN112260801A (zh) 无线通信方法、用户设备、基站及其集成电路
WO2016049850A1 (zh) 一种上行数据的传输方法及相关设备
CN107135051B (zh) 一种上行数据重传的方法、设备和系统
TW201519680A (zh) 用於傳輸控制資訊的方法和設備
WO2017024564A1 (zh) 一种发送上行信息的方法及装置
CN110506446B (zh) 用于子帧调度的方法和装置
JP2015188255A5 (zh)
CN102355336A (zh) 一种bsr触发方法、装置及用户设备
US10609725B2 (en) Data transmission method of system, user equipment, and base station

Legal Events

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

Ref document number: 14905291

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14905291

Country of ref document: EP

Kind code of ref document: A1