WO2017193300A1 - 一种时分双工通信的定时方法、基站及用户设备 - Google Patents

一种时分双工通信的定时方法、基站及用户设备 Download PDF

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Publication number
WO2017193300A1
WO2017193300A1 PCT/CN2016/081684 CN2016081684W WO2017193300A1 WO 2017193300 A1 WO2017193300 A1 WO 2017193300A1 CN 2016081684 W CN2016081684 W CN 2016081684W WO 2017193300 A1 WO2017193300 A1 WO 2017193300A1
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Prior art keywords
stti
uplink
downlink
packet
grouped
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PCT/CN2016/081684
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English (en)
French (fr)
Inventor
孙昊
成艳
薛丽霞
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华为技术有限公司
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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 EP16901255.6A priority Critical patent/EP3444978B1/en
Priority to PCT/CN2016/081684 priority patent/WO2017193300A1/zh
Priority to CN201680085398.0A priority patent/CN109075896B/zh
Publication of WO2017193300A1 publication Critical patent/WO2017193300A1/zh
Priority to US16/185,307 priority patent/US10813114B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a timing method, a base station, and a user equipment for time division duplex communication.
  • TDD-LTE Time Division Duplexing-Long Term Evolution
  • the subframe includes an uplink subframe (represented by "U"), a downlink subframe (represented by "D"), and a special subframe (represented by "S").
  • TDD-LTE supports different uplink and downlink time ratios.
  • the uplink and downlink subframe ratios can be adjusted according to different service types to meet the requirements of uplink and downlink asymmetric services.
  • the configuration of different uplink and downlink subframes is as shown in FIG. 1 .
  • the structure of TDD may evolve into a new structure, as shown in FIG. 2 .
  • the special subframe type 1 is mainly composed of downlink symbols
  • the special subframe type 2 is mainly composed of uplink symbols, and the guard interval in each special subframe format.
  • GP Guard Period
  • the position can be changed through configuration, as shown in Figure 2, the GP is located in the penultimate symbol and the second symbol respectively.
  • the transmission time interval (English: Transmission Time Interval, TTI for short) is the minimum granularity of the data transmission interval, that is, 1 subframe and 14 symbols.
  • a mechanism of short transmission time interval (English: short TTI, sTTI for short) is introduced, that is, the scheduling granularity of data in the time domain is reduced.
  • the sTTI mechanism reduces the time of TTI, that is, the scheduling granularity is reduced from the original 14 symbol length to 7 symbols, 3 or 4 symbols, 2 symbols, or 1 symbol. This mechanism reduces the waiting time for uplink and downlink transmissions, thereby reducing the transmission delay of the system.
  • the timing design of the existing TDD new frame structure can ensure the normal operation of the system.
  • the uplink scheduling timing and the downlink response timing are designed with the subframe as the granularity, and the interval between the downlink subframe scheduling and the scheduling uplink subframe is Fixed value, the interval between downlink data sent to the uplink feedback response is a fixed value. Therefore, the existing TDD timing design cannot be applied to the mechanism of TDD new frame structure combined with sTTI. in.
  • the embodiment of the invention provides a timing method for time division duplex communication, an uplink and downlink data scheduling method, a base station and a user equipment, so that the uplink scheduling timing and/or the downlink response timing can satisfy the combination of the TDD new frame structure and the short transmission time interval. After the timing requirements.
  • a timing method for time division duplex communication comprising:
  • the uplink sTTI and the downlink sTTI need to be grouped, the uplink sTTI and the downlink sTTI are grouped and matched, and the first indication information is added to the control signaling, and the control signaling is sent to the user equipment, where the first indication is The information is used to indicate an uplink sTTI sequence in an uplink sTTI packet for performing uplink data scheduling or downlink data scheduling, and the uplink sTTI packet corresponds to a downlink sTTI packet for performing uplink data scheduling or downlink data scheduling;
  • the uplink sTTIs are grouped into one group.
  • all downlink sTTIs with an uplink sTTI interval greater than or equal to k sTTIs in the uplink sTTI packet can be used for transmitting uplink data scheduling.
  • k is a preset minimum scheduling gap, and adding second indication information to the control signaling, where the second indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet of the uploaded data;
  • the first uplink sTTI upload data or the feedback downlink data schedule indicating that the downlink sTTI interval with the uplink or downlink data scheduling indication is greater than or equal to k sTTIs is indicated.
  • the uplink/downlink short transmission time interval needs to be grouped, it is determined whether additional indication information needs to be added in the control signaling to indicate the user equipment to upload data or feedback for different situations of whether the packet is needed.
  • Uplink short transmission time interval sequence number in the uplink short transmission time interval group of the downlink data scheduling, or uploading data on the uplink short transmission time interval determined according to the default rule, without adding additional indication information in the control signaling The downlink data scheduling is fed back, so that the uplink/downlink data scheduling is performed on any downlink sTTI, and the uplink scheduling timing and/or the downlink response timing can satisfy the timing requirement of combining the TDD new frame structure and the short transmission time interval.
  • the determining is for a given radio frame structure Whether to group the uplink short transmission time interval sTTI and/or downlink sTTI, including:
  • the uplink sTTI and the downlink sTTI need to be grouped;
  • the sTTI includes 7 symbols, it is determined that only the uplink sTTI needs to be grouped;
  • the uplink sTTI or the downlink sTTI need not be grouped
  • the given radio frame structure includes the first radio frame structure and the second radio frame structure.
  • the uplink sTTI and/or the downlink sTTI need to be grouped according to the number of symbols included in the sTTI.
  • the uplink sTTI and the downlink sTTI need to be grouped, the uplink sTTI and the downlink sTTI are grouped and matched, including:
  • a starting sTTI sequence of the downlink sTTI segment is m-k+1, and a termination sTTI of the downlink sTTI segment
  • the sequence number is nk, where m is the sequence number of the previous uplink sTTI of the uplink sTTI segment, and n is the sequence number of the last uplink sTTI in the uplink sTTI segment;
  • Each uplink sTTI segment is grouped to obtain at least one uplink sTTI packet
  • the downlink sTTI segments corresponding to the uplink sTTI segment are grouped to obtain at least one downlink sTTI packet, and the at least one downlink sTTI packet is matched with the at least one uplink sTTI packet.
  • the downlink sTTI segment is determined according to the uplink sTTI segment, and the uplink sTTI segment and the downlink sTTI segment are grouped, and then the uplink sTTI packet and the downlink sTTI packet are matched, thereby completing the grouping of the uplink sTTI and the downlink sTTI. match.
  • the starting sTTI sequence of the downlink sTTI segment is the first downlink sTTI after the mk sequence number;
  • the sequence of the termination sTTI of the downlink sTTI segment is N-a.
  • This design is a supplement to the specific case of the grouping of the upstream sTTI and the downstream sTTI.
  • the first indication information or the second indication information is 1 bit.
  • the indication of the uplink sTTI sequence number in the uplink sTTI packet for uploading data or downlink data scheduling feedback can be realized by adding only one bit to the control signaling, and the signaling overhead is small.
  • an uplink and downlink data scheduling method includes:
  • control signaling including the added indication information, where the indication information is used to indicate uploading data or downlink data, when receiving the indication of the uplink data scheduling or the downlink data scheduling sent by the downlink sTTI packet. And scheduling an uplink sTTI sequence number in the uplink sTTI packet, where the uplink sTTI packet corresponds to the downlink sTTI packet;
  • the base station has indicated that the user equipment uploads data or feeds back the uplink short transmission time interval sequence number in the uplink short transmission time interval group of the downlink data scheduling by adding additional indication information in the control signaling, thereby
  • the uplink/downlink data scheduling is performed on the sTTI, and the uplink scheduling timing and/or the downlink response timing can satisfy the timing requirement after the combination of the TDD new frame structure and the short transmission time interval.
  • a base station in a third aspect, includes:
  • a determining unit configured to determine, for a given radio frame structure, whether to group the uplink short transmission time interval sTTI and/or the downlink sTTI;
  • a grouping unit configured to group and match the uplink sTTI and the downlink sTTI when the uplink sTTI and the downlink sTTI need to be grouped;
  • an indicating unit configured to add first indication information, where the first indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet for performing uplink data or downlink data scheduling feedback, where the uplink sTTI packet is performed Corresponding to the downlink sTTI packet of uplink data scheduling or downlink data scheduling;
  • the grouping unit is further configured to divide the uplink sTTI into when only the uplink sTTI needs to be grouped. For a group of uplink data scheduling, all downlink sTTIs with an uplink sTTI interval greater than or equal to k sTTIs in the uplink sTTI packet may be used to send an uplink data scheduling indication, where k is a preset minimum scheduling gap;
  • the indication unit is further configured to add, in the control signaling, second indication information, where the second indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet of the uploaded data;
  • a sending unit configured to send the control signaling to the user equipment
  • the indication unit is further configured to: when the uplink sTTI or the downlink sTTI is not required to be grouped, indicate that the first uplink sTTI upload data or feedback is greater than or equal to k sTTIs with a downlink sTTI interval that is sent with an uplink or downlink data scheduling indication. Downstream data scheduling.
  • the principle and the beneficial effects of the device can be referred to the first aspect and the possible implementation manners of the first aspect and the beneficial effects. Therefore, the implementation of the device can be referred to the implementation of the method. The repetitions are not repeated here.
  • a fourth aspect provides a user equipment, where the user equipment includes:
  • the receiving unit is configured to: when receiving the indication of the uplink data scheduling or the downlink data scheduling sent on the downlink sTTI packet, receive the control signaling, where the control signaling includes the added indication information, where the indication information is used to indicate Uploading an uplink sTTI sequence in the uplink sTTI packet of the data or downlink data scheduling feedback, where the uplink sTTI packet corresponds to the downlink sTTI packet;
  • a sending unit configured to upload data or feed back downlink data scheduling on an uplink sTTI corresponding to an uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • a base station in a fifth aspect, includes: a processor and a transmitter;
  • the processor is configured to determine, for a given radio frame structure, whether to group the uplink short transmission time interval sTTI and/or the downlink sTTI;
  • the processor is further configured to: when the uplink sTTI and the downlink sTTI need to be grouped, the uplink sTTI and the downlink sTTI are grouped and matched, and the first indication information is added to the control signaling, where the first indication information is used. And indicating an uplink sTTI sequence in the uplink sTTI packet for performing uplink data scheduling or downlink data scheduling, where the uplink sTTI packet is corresponding to the downlink data sTTI packet;
  • the processor is further configured to divide the uplink sTTI into one when only the uplink sTTI needs to be grouped.
  • all downlink sTTIs with an uplink sTTI interval greater than or equal to k sTTIs in the uplink sTTI packet may be used to send an uplink data scheduling indication, where k is a preset minimum scheduling gap, and in the control
  • the second indication information is added to the signaling, where the second indication information is used to indicate an uplink sTTI sequence number in the uplink sTTI packet of the uploaded data;
  • the transmitter is configured to send the control signaling to a user equipment
  • the processor is further configured to: when the uplink sTTI or the downlink sTTI is not required to be grouped, indicate that the first uplink sTTI upload data or feedback is greater than or equal to k sTTIs with a downlink sTTI interval that is sent with an uplink or downlink data scheduling indication. Downstream data scheduling.
  • the principle and the beneficial effects of the device can be referred to the first aspect and the possible implementation manners of the first aspect and the beneficial effects. Therefore, the implementation of the device can refer to the implementation of the method. The repetitions are not repeated here.
  • a sixth aspect provides a user equipment, where the user equipment includes: a receiver and a transmitter;
  • the receiving when receiving the indication of the uplink data scheduling or the downlink data scheduling sent on the downlink sTTI packet, receiving the control signaling, where the control signaling includes the added indication information, where the indication information is used to indicate Uploading an uplink sTTI sequence in the uplink sTTI packet of the data or downlink data scheduling feedback, where the uplink sTTI packet corresponds to the downlink sTTI packet;
  • the transmitter is configured to upload data or feed back downlink data scheduling on an uplink sTTI corresponding to an uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • the embodiments of the present invention provide a timing method for time division duplex communication, an uplink and downlink data scheduling method, a base station, and a user equipment, and determine whether it is necessary to group the uplink/downlink short transmission time intervals. In case, it is determined whether additional indication information needs to be added in the control signaling to indicate that the user equipment uploads data or feeds back the uplink short transmission time interval sequence number in the uplink short transmission time interval group of the downlink data scheduling, or does not need to be in control signaling.
  • Timing can meet the timing requirements of the combination of TDD's new frame structure and short transmission time interval.
  • 1 is a schematic diagram of a ratio of uplink and downlink subframes of a conventional TDD-LTE radio frame
  • FIG. 2 is a schematic diagram of two future TDD evolution subframe structures
  • FIG. 3 is a schematic structural diagram of two types of radio frames in the new special subframe type 1 shown in FIG. 2;
  • FIG. 4 is a schematic flowchart of a timing method for time division duplex communication according to an embodiment of the present invention
  • 5 is a group diagram of a radio frame structure 1 of an sTTI of 1 symbol length
  • 6 is a group diagram of a radio frame structure 1 of an sTTI of 2 symbol length
  • FIG. 7 is a group diagram of a radio frame structure 1 of an sTTI of 3/4 symbol length
  • 8 is a group diagram of a radio frame structure 1 of an sTTI of 7 symbol length
  • 9 is a group diagram of a radio frame structure 2 of an sTTI of 1 symbol length
  • 10 is a group diagram of a radio frame structure 2 of an sTTI of 2 symbol length
  • 11 is a group diagram of a radio frame structure 2 of an sTTI of 3/4 symbol length;
  • 12 is a group diagram of a radio frame structure 2 of an sTTI of 7 symbol length
  • FIG. 13 is a schematic flowchart of a method for scheduling uplink and downlink data according to an embodiment of the present disclosure
  • FIG. 14 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a grouping unit in FIG. 14;
  • FIG. 16 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the embodiment of the invention provides a timing method for time division duplex communication, an uplink and downlink data scheduling method, a base station and a user equipment, and determines whether it is necessary to group the uplink/downlink short transmission time intervals. Determining whether it is necessary to add additional indication information in the control signaling to indicate that the user equipment uploads data or feeds back the uplink short transmission time interval sequence number in the uplink short transmission time interval group of the downlink data scheduling, or It is not necessary to add additional indication information in the control signaling, but uploads data or feeds back downlink data scheduling on the uplink short transmission time interval determined according to the default rule, so that uplink/downlink data scheduling is performed on any downlink sTTI, and the uplink is performed.
  • the scheduling timing and/or the downlink response timing can meet the timing requirements of the combination of the TDD new frame structure and the short transmission time interval.
  • FIG. 4 is a schematic flowchart of a timing method for time division duplex communication according to an embodiment of the present invention, where the method includes the following steps:
  • S101 Determine, for a given radio frame structure, whether to group the uplink short transmission time interval sTTI and/or the downlink sTTI.
  • the given radio frame structure refers to two radio frame structures under the new special subframe type 1 shown in FIG. 3.
  • the S sub-frame in the radio frame structure 1 The frame includes 9 downlink symbols, 1 GP, 4 uplink symbols, and the S1 subframe includes 11 downlink symbols, 1 GP, and 2 uplink symbols.
  • the radio frame structure 2 The S subframe in the middle contains 9 downlink symbols, 1 GP, 4 uplink symbols, and the S1 subframe includes 7 downlink symbols, 1 GP, and 6 uplink symbols.
  • the uplink scheduling timing and the downlink response timing are designed with a short transmission time interval as a granularity, that is, the short transmission time interval is defined herein as a minimum scheduling unit in the time domain.
  • a radio frame includes multiple uplink/downlink sTTIs, and for the difference between the two radio frame structures and the up/down symbols included in one sTTI, we consider whether it is necessary to group the uplink sTTI and/or the downlink sTTI for
  • the TDD new frame structure combines the timing design of the sTTI mechanism.
  • the uplink sTTI and the downlink sTTI need to be grouped;
  • the sTTI includes 7 symbols, it is determined that only the uplink sTTI needs to be grouped;
  • the uplink sTTI or the downlink sTTI need not be grouped.
  • the uplink sTTI and the downlink sTTI need to be grouped, the uplink sTTI and the downlink sTTI are grouped and matched, and the first indication information is added to the control signaling, and the control information is sent.
  • the first indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet for performing uplink data scheduling or downlink data scheduling feedback, and the uplink sTTI packet is configured as a downlink sTTI packet for performing uplink data scheduling or downlink data scheduling. correspond.
  • the sTTI includes 1 symbol, 2 symbols, 3 or 4 symbols, it is determined that the uplink sTTI and the downlink sTTI need to be grouped.
  • the uplink scheduling grant timing and the downlink data feedback timing are designed to use the same uplink and downlink packets, and the scheme is combined with the independent indication to perform timing design.
  • the group design principles are as follows:
  • the uplink sTTI segment is performed, that is, the number of consecutive uplink sTTIs in the radio frame is divided into one segment, and at least one uplink sTTI segment is obtained.
  • a is a positive integer greater than or equal to 2.
  • the starting sequence number of the downlink sTTI to be used in the segment is m-k+1 (if the sTTI of the m-k+1 sequence is the uplink sTTI, then The number of the last downlink sTTI in the continuous uplink sTTI group is based on the sequence number n of the last uplink sTTI in the continuous uplink sTTI group, and the termination sequence number of the downlink sTTI to be performed is nk; the downlink continuous sTTI score The part multiplexes the number a of the consecutive uplink sTTI segments and equally divides the consecutive downlink sTTIs of the segment as much as possible.
  • each uplink sTTI segment is grouped to obtain at least one uplink sTTI packet, and downlink sTTI segments corresponding to the uplink sTTI segment are grouped to obtain at least one downlink sTTI packet, and the at least one The downlink sTTI packet matches the at least one uplink sTTI packet.
  • the starting sTTI of the downlink sTTI segment is the first downlink sTTI after the mk sequence; and/or, if uplink If the number a of the sTTI subdivision is greater than k, the termination sTTI sequence of the downlink sTTI subdivision is na.
  • the base station After performing uplink data scheduling or downlink data scheduling on the one or more downlink sTTIs of one downlink sTTI packet, the base station adds one to the control signaling after completing the uplink sTTI and the downlink sTTI for packet and matching.
  • the first indication information may specifically be a downlink control indication (English)
  • the text of the Downlink Control Information (DCI) is added to the user equipment, and the first indication information is used to indicate the uplink sTTI sequence in the uplink sTTI packet for performing the upload data or the downlink data scheduling feedback.
  • the uplink sTTI packet corresponds to a downlink sTTI packet for performing uplink data scheduling or downlink data scheduling.
  • the user equipment After receiving the control signaling, the user equipment uploads data or feeds back downlink data scheduling on the uplink sTTI corresponding to the uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • the first indication information is 1 bit. For example, if one uplink sTTI group includes two sTTIs, and indicates an uplink group that includes 13, 14 s TTI, the eNB configures the bit to be a set indication 13sTTI, and the reset indicates 14sTTI, and vice versa.
  • the uplink sTTI is divided into a group, and when uplink data scheduling is performed, all downlink sTTIs with an uplink sTTI interval in the uplink sTTI packet greater than or equal to k sTTIs can be used for transmitting uplink.
  • the data scheduling indication, k is a preset minimum scheduling gap, and adding second indication information to the control signaling, where the second indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet of the uploaded data.
  • the sTTI For a given first radio frame structure, if the sTTI includes 7 symbols, it is determined that only the uplink sTTI needs to be grouped, that is, the downlink sTTIs are no longer grouped.
  • all downlink sTTIs with an uplink sTTI interval greater than or equal to k sTTIs in the uplink sTTI packet may be used to send an uplink data scheduling indication, where k is a preset minimum scheduling gap, and k is preferably a value range of 1 to 4, and adding second indication information to the control signaling, where the second indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet of the uploaded data.
  • the second indication information is 1 bit.
  • the downlink sTTI corresponds to the first uplink sTTI with an interval greater than or equal to 4 sTTIs, and the timing of the downlink data feedback is determined.
  • the uplink sTTI that performs downlink data feedback can include a downlink symbol or a GP.
  • the uplink sTTI or the downlink sTTI is not required to be grouped, indicate that the first uplink sTTI upload data or the feedback downlink data scheduling is greater than or equal to k sTTIs with the downlink sTTI interval of the uplink or downlink data scheduling indication.
  • the timing design is: uploading data with the first uplink sTTI with a downlink sTTI interval greater than or equal to k sTTIs, or an uplink or downlink data scheduling indication. Feedback downlink data scheduling.
  • the uplink and downlink timing configurations are respectively described as follows:
  • 5 is a group diagram of a radio frame structure 1 of an sTTI of 1 symbol length, and one radio frame includes 140 sTTIs.
  • the uplink sTTI that needs to be grouped is determined according to rule 1, and the uplink sTTI packet is divided: the sequence number of the sTTI that needs to be grouped has six parts.
  • the first part is 24-41 uplink sTTI
  • the second part is 54-55 uplink sTTI
  • the third part is 68-69 uplink sTTI
  • the fourth part is 94-97 uplink sTTI
  • the fifth part is 110-111 uplink sTTI
  • the sixth part is the 124-125 uplink sTTI
  • the seventh part is the 138-139 uplink sTTI. Considering the number of bits used for the indication, the two uplink sTTIs are grouped.
  • the description of the downlink sTTI corresponding to the uplink sTTI packet is 42-51; the downlink sTTI corresponding to the third sTITI packet is 52 &56-65; the downlink sTTI corresponding to the fourth sTITI packet is 66 & 70
  • the downlink sTTI range corresponding to the uplink sTTI packet is 98-107 in the fifth part; the downlink sTTI range corresponding to the uplink sTTI packet in the sixth part is 108 &112-121; the downlink sTTI range corresponding to the seventh partial uplink sTTI packet is 122 & 126-135. .
  • the downlink sTTIs are grouped and matched according to the number of packets of the uplink sTTI:
  • the 136th, 0sTTI is divided into a group, which corresponds to the 24th, 25s TTI;
  • the first, 2sTTI is divided into a group, which corresponds to the 26th, 27sTTI;
  • the 3rd, 4sTTI is divided into a group, which corresponds to the 28th, 29s TTI;
  • the 5th, 6th, and 7th TTIs are grouped and correspond to the 30th, 31sTTI;
  • the 8th, 9th, and 10th TTIs are grouped into one, which corresponds to the 32nd, 33sTTI;
  • the 11th, 12th, and 13th TTIs are grouped and correspond to the 34th and 35th TTIs;
  • the 14th, 15th, and 16th TTIs are grouped and correspond to the 36th and 37sTTIs;
  • the 17th, 18th, and 19th TTIs are grouped and correspond to the 38th, 39s TTI;
  • the 20th, 21st, and 22s TTIs are grouped and correspond to the 40th, 41sTTI;
  • the 42-51TTI is divided into a group corresponding to the 54th, 55s TTI;
  • the 52&56-65TTI is divided into a group that corresponds to the 68th, 69sTTI;
  • the 66th, 70-80s TTI is divided into a group, which corresponds to the 94th, 95s TTI;
  • the 81-92s TTI is divided into a group, which corresponds to the 96th, 97s TTI;
  • the 98-107TTI is divided into a group corresponding to the 110th, 111sTTI;
  • the 108th and 112th-121th TTIs are grouped and correspond to the 124th, 125sTTI;
  • the 122th & 126-135TTIs are grouped and correspond to the 138th, 139sTTI;
  • the eNB adds 1-bit information in the existing DCI (whether for uplink data scheduling or downlink data scheduling) to indicate the sTTI in the uplink sTTI group.
  • 1-bit information in the existing DCI whether for uplink data scheduling or downlink data scheduling
  • For an uplink sTTI group there are two sTTIs. If the uplink group indicating 24, 25 s TTI is indicated, the eNB configures the bit to be a set indication 24sTTI, and the reset indicates 25sTTI, and vice versa.
  • the user equipment (English: User Equipment, UE for short) receives the uplink data scheduling indication, if the current sTTI group corresponding to the current downlink sTTI includes two sTTIs, the new bit is retrieved to determine that it is in the sTTI group. Which sTTI uploads data.
  • the UE After receiving the downlink data scheduling indication, the UE if the current downlink sTTI corresponds to the uplink sTTI
  • the group contains 2 sTTIs, and the newly added bits are retrieved to determine which sTTI feedback response data in the sTTI group.
  • FIG. 6 is a group diagram of a radio frame structure 1 of an sTTI of 2 symbol length, and one radio frame includes 70 sTTIs.
  • the uplink sTTI that needs to be grouped is determined according to rule 1, and the uplink sTTI packet is divided: the sequence number of the sTTI that needs to be grouped has two parts. The first part is 12-20 uplink sTTI, and the second part is 47-48 uplink sTTI. Considering the number of bits used for the indication, the two uplink sTTIs are grouped.
  • the sTTI is still in the uplink sTTI until the sequence number 11 is the downlink sTTI.
  • the downlink sTTI range corresponding to the first part of the uplink sTTI packet is 66-68 &0-11; and the downlink sTTI range corresponding to the second part of the uplink sTTI packet.
  • the downlink sTTI range corresponding to the second partial uplink sTTI packet is 31-33 & 35-44.
  • the downlink sTTIs are grouped and matched according to the number of packets of the uplink sTTI:
  • the 66th, 67th, and 68s TTIs are grouped and correspond to the 12th TTI;
  • the 0th, 1st, and 2s TTIs are grouped and correspond to the 13th and 14th TTIs;
  • the 3rd, 4th, and 5th TTIs are grouped and correspond to the 15th and 16th TTIs;
  • the sixth, seventh, and eighth sTTIs are grouped and correspond to the 17th and 18th TTIs;
  • the 9th, 10th, and 11th TTIs are grouped and correspond to the 19th and 20th TTIs;
  • the other downlink sTTIs correspond to the first uplink sTTI with an interval greater than or equal to 4 sTTIs, for example, 21sTTI corresponds to 27sTTI.
  • the base station (English: eNodeB, eNB for short) adds 1 bit information to the sTTI in the uplink sTTI group in the existing downlink control information (whether for uplink data scheduling or downlink data scheduling). For an uplink sTTI group, there are two sTTIs. If the uplink group including the 13, 14 s TTI is indicated, the eNB configures the bit to be a set indication 13sTTI, and the reset indicates 14sTTI, and vice versa.
  • the UE After receiving the uplink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI upload data in the sTTI group.
  • the UE After receiving the downlink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI feedback response data in the sTTI group.
  • FIG. 7 is a group diagram of a radio frame structure 1 of an sTTI of 3/4 symbol length, and one radio frame includes 40 sTTIs.
  • the uplink sTTI that needs to be grouped is determined according to rule 1, and the uplink sTTI packet is divided: a part of the sequence of the uplink sTTI that needs to be grouped, For upstream sTTI 7-11. Considering the number of bits used for the indication, the two uplink sTTIs are grouped.
  • the uplink sTTI is still found, the first downlink sTTI is found, and the sequence number is 6, and the sTTI with the sequence number 6 is the termination sequence number of the downlink sTTI for the packet, and the downlink sTTI range corresponding to the portion of the uplink sTTI packet is 36. -38&0-6.
  • the downlink sTTIs are grouped and matched according to the number of packets of the uplink sTTI:
  • the 36th, 37th, and 38th TTIs are grouped and correspond to the 7sTTI;
  • the 0th, 1st, 2nd, and 3s TTIs are grouped and correspond to the 8th and 9th TTIs;
  • the 4th, 5th, and 6th TTIs are grouped and correspond to the 10th and 11th TTIs;
  • the other downlink sTTIs correspond to the first uplink sTTI with an interval greater than or equal to 4 sTTIs, for example, 12sTTI corresponds to 19sTTI.
  • the eNB adds 1-bit information in the existing DCI (whether for uplink data scheduling or downlink data scheduling) to indicate the sTTI in the uplink sTTI group.
  • 1-bit information in the existing DCI whether for uplink data scheduling or downlink data scheduling
  • For an uplink sTTI group there are two sTTIs. If an uplink group including 8,9s TTI is indicated, the eNB configures the bit to be set to indicate 8sTTI, and the reset indicates 9sTTI, and vice versa.
  • the UE After receiving the uplink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI upload data in the sTTI group.
  • the new bit bit is retrieved to determine which sTTI feedback response data in the sTTI group.
  • 8 is a group diagram of a radio frame structure 1 of an sTTI of 7 symbol length, and one radio frame includes 20 sTTIs.
  • the downlink sTTIs are no longer grouped, and only the two uplink sTTIs are grouped.
  • all downlink sTTIs with an uplink sTTI interval greater than or equal to 4 sTTIs in the sTTI group can be used to schedule uplink sTTIs in the sTTI group.
  • the uplink sTTI must be a complete uplink. For example, if the uplink data scheduling is sent in the downlink sTTI with the sequence number of 0, the data can be uploaded in the uplink sTTI with sequence number 4, and the uplink data scheduling is sent in the downlink sTTI with sequence number 1. The uplink sTTI with sequence number 5 can be uploaded. data.
  • the eNB adds 1-bit information in the existing DCI (whether for uplink data scheduling or downlink data scheduling) to indicate the sTTI in the uplink sTTI group.
  • the UE retrieves the new bit to determine which sTTI upload data in the sTTI group.
  • the downlink sTTI corresponds to the first uplink sTTI with the interval greater than or equal to 4 sTTIs, and the timing of the downlink data feedback is determined.
  • the uplink sTTI of the feedback response data may not be a complete uplink.
  • the sTTI for example, transmits downlink data on the downlink sTTI of sequence number 2, and can perform data response in the uplink symbol in the sTTI of sequence number 5.
  • the uplink and downlink timing configurations are respectively described as follows:
  • 9 is a group diagram of a radio frame structure 2 of an sTTI of 1 symbol length, and one radio frame includes 140 sTTIs.
  • the uplink sTTI that needs to be grouped is determined according to rule 1, and the uplink sTTI packet is divided: the sequence number of the sTTI that needs to be grouped has six parts.
  • the first part is 24-41 uplink sTTI
  • the second part is 50-55 uplink sTTI
  • the third part is 64-69 uplink sTTI
  • the fourth part is 94-111 uplink sTTI
  • the fifth part is 120-125 uplink sTTI.
  • the sixth part is the 134-139 uplink sTTI. Considering the number of bits used for the indication, the two uplink sTTIs are grouped.
  • the downlink sTTI corresponding to the first sth sTTI packet is 0-22, and the downlink sTTI corresponding to the second sTTI packet is 42-48.
  • the downlink sTTI range corresponding to the partial uplink sTTI packet is 56-62; the downlink sTTI range corresponding to the fourth uplink sTTI packet is 70-92; the downlink sTTI range corresponding to the fifth uplink sTTI packet is 112-118;
  • the downlink sTTI range corresponding to the sTTI packet is 126-132.
  • the downlink sTTIs are grouped and matched according to the number of packets of the uplink sTTI:
  • the 0th, 1sTTI is divided into a group, which corresponds to the 24th, 25s TTI;
  • the 2nd, 3sTTI is divided into a group, which corresponds to the 26th, 27sTTI;
  • the 4th, 5sTTI is divided into a group, which corresponds to the 28th, 29s TTI;
  • the sixth, 7sTTI is divided into a group, which corresponds to the 30th, 31sTTI;
  • the 8th, 9th, and 10th TTIs are grouped into one, which corresponds to the 32nd, 33sTTI;
  • the 11th, 12th, and 13th TTIs are grouped and correspond to the 34th and 35th TTIs;
  • the 14th, 15th, and 16th TTIs are grouped and correspond to the 36th and 37sTTIs;
  • the 17th, 18th, and 19th TTIs are grouped and correspond to the 38th, 39s TTI;
  • the 20th, 21st, and 22s TTIs are grouped and correspond to the 40th, 41sTTI;
  • the 42nd, 43th TTI is divided into a group, which corresponds to the 50th, 51sTTI;
  • the 44th, 45sTTI is divided into a group, which corresponds to the 52nd, 53s TTI;
  • the 46th, 47th, and 48th TTIs are grouped and correspond to the 54, 55s TTI;
  • the 56th, 57th TTI is divided into a group, which corresponds to the 64th, 65sTTI;
  • the 57th, 59s TTI is divided into a group, which corresponds to the 66th, 67sTTI;
  • the 60th, 61st, and 62s TTIs are grouped and correspond to the 68th, 69sTTI;
  • the 70th, 71sTTI is divided into a group, which corresponds to the 94th, 95sTTI;
  • the 72nd, 73s TTI is divided into a group, which corresponds to the 96th, 97s TTI;
  • the 74th, 75sTTI is divided into a group, which corresponds to the 98th, 99sTTI;
  • the 76th, 77sTTI is divided into a group, which corresponds to the 100th, 101sTTI;
  • the 78th, 79th, and 80s TTIs are grouped and correspond to the 102, 103s TTI;
  • the 81st, 82nd, and 83s TTIs are grouped and correspond to the 104th and 105sTTIs;
  • the 84th, 85th, and 86s TTIs are grouped and correspond to the 106th, 107sTTIs;
  • the 87th, 88th, and 89s TTIs are grouped and correspond to the 108th, 109sTTI;
  • the 90th, 91st, and 92s TTIs are grouped and correspond to the 110th and 111sTTIs;
  • the 112th, 113th TTI is divided into a group, which corresponds to the 120th, 121sTTI;
  • the 114th, 115sTTI is divided into a group, which corresponds to the 122nd, 123sTTI;
  • the 116th, 117, and 118s TTIs are grouped into one, which corresponds to the 124th, 125sTTI;
  • the 126th, 127th TTI is divided into a group, which corresponds to the 134th, 135sTTI;
  • the 128th, 129sTTI is divided into a group corresponding to the 136th, 137sTTI;
  • the 130th, 131, and 132s TTIs are grouped and correspond to the 138th, 139sTTIs;
  • the eNB adds 1-bit information in the existing DCI (whether for uplink data scheduling or downlink data scheduling) to indicate the sTTI in the uplink sTTI group.
  • 1-bit information in the existing DCI whether for uplink data scheduling or downlink data scheduling
  • For an uplink sTTI group there are two sTTIs. If the uplink group indicating 24, 25 s TTI is indicated, the eNB configures the bit to be a set indication 24sTTI, and the reset indicates 25sTTI, and vice versa.
  • the UE After receiving the uplink data scheduling indication, the UE if the current downlink sTTI corresponds to the uplink sTTI
  • the group contains 2 sTTIs, and the newly added bits are retrieved to determine which sTTI upload data in the sTTI group.
  • the UE After receiving the downlink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI feedback response data in the sTTI group.
  • FIG. 10 is a group diagram of a radio frame structure 2 of an sTTI of 2 symbol length, and one radio frame includes 70 sTTIs.
  • the uplink sTTI that needs to be grouped is determined according to rule 1 and the uplink sTTI packet is divided: the sequence number of the sTTI that needs to be grouped has six parts.
  • the first part is 12-20 uplink sTTI
  • the second part is 25-27 uplink sTTI
  • the third part is 32-34 uplink sTTI
  • the fourth part is 47-55 uplink sTTI
  • the fifth part is 60-62 uplink sTTI
  • the sixth part is the 67-69 uplink sTTI. Considering the number of bits used for the indication, the two uplink sTTIs are grouped.
  • the downlink sTTI corresponding to the uplink sTTI packet is 66&0-11, and the downlink sTTI corresponding to the second sTTI packet is 21-23;
  • the downlink sTTI range corresponding to the partial uplink sTTI packet is 24 &28-30;
  • the downlink sTTI range corresponding to the fourth uplink sTTI packet is 31 &35-46;
  • the downlink sTTI range corresponding to the fifth uplink sTTI packet is 56-58;
  • the downlink sTTI range corresponding to the sTTI packet is 59 & 63-65.
  • the downlink sTTIs are grouped and matched according to the number of packets of the uplink sTTI:
  • the 66th, 0sTTI is divided into a group, which corresponds to the 12sTTI;
  • the first, 2sTTI is divided into a group, which corresponds to the 13th, 14s TTI;
  • the 3rd, 4th, and 5th TTIs are grouped and correspond to the 15th and 16th TTIs;
  • the sixth, seventh, and eighth sTTIs are grouped and correspond to the 17th and 18th TTIs;
  • the 9th, 10th, and 11th TTIs are grouped and correspond to the 19th and 20th TTIs;
  • the 21st TTI is divided into a group, which corresponds to the 25sTTI;
  • the 22nd, 23sTTI is divided into a group, which corresponds to the 26th, 27sTTI;
  • the 24th and 28th TTIs are grouped and correspond to the 32th TTI;
  • the 29th, 30th TTI is divided into a group, which corresponds to the 33, 34TTI;
  • the 31st, 35sTTI is divided into a group, which corresponds to the 47sTTI;
  • the 36th, 37sTTI is divided into a group, which corresponds to the 48th, 49sTTI;
  • the 38th, 39th, and 40s TTIs are grouped and correspond to the 50th, 51sTTI;
  • the 41st, 42nd, and 43s TTIs are grouped and correspond to the 52nd, 53s TTI;
  • the 44th, 45th, and 46s TTIs are grouped and correspond to the 54, 55s TTI;
  • the 56th TTI is divided into a group, which corresponds to the 60sTTI;
  • the 57th, 58sTTI is divided into a group, which corresponds to the 61st, 62s TTI;
  • the 59th, 63s TTI is divided into a group, which corresponds to the 67th TTI;
  • the 64th, 65th TTI is divided into a group, which corresponds to the 68th, 69th TTI.
  • the eNB adds 1-bit information in the existing DCI (whether for uplink data scheduling or downlink data scheduling) to indicate the sTTI in the uplink sTTI group.
  • 1-bit information in the existing DCI whether for uplink data scheduling or downlink data scheduling
  • For an uplink sTTI group there are two sTTIs. If the uplink group including the 13, 14 s TTI is indicated, the eNB configures the bit to be a set indication 13sTTI, and the reset indicates 14sTTI, and vice versa.
  • the UE After receiving the uplink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI upload data in the sTTI group.
  • the UE After receiving the downlink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI feedback response data in the sTTI group.
  • 11 is a group diagram of a radio frame structure 2 of an sTTI of 3/4 symbol length, and one radio frame includes 40 sTTIs.
  • the sequence number of the sTTI of the group has six parts.
  • the first part is 7-11 uplink sTTI
  • the second part is 14-15 uplink sTTI
  • the third part is 18-19 uplink sTTI
  • the fourth part is 27-31 uplink sTTI
  • the part is 34-35 uplink sTTI
  • the sixth part is 38-39 uplink sTTI. Considering the number of bits used for the indication, the two uplink sTTIs are grouped.
  • the downlink sTTI corresponding to the first sth sTTI packet is 36-37&0-3, and the downlink sTTI corresponding to the second sTITI packet is 4-6;
  • the downlink sTTI range corresponding to the uplink sTTI packet is 12-13;
  • the downlink sTTI range corresponding to the fourth uplink sTTI packet is 16-17 &20-23; and
  • the downlink sTTI range corresponding to the fifth uplink sTTI packet is 24-26;
  • the downlink sTTI range corresponding to the sixth uplink sTTI packet is 32-33.
  • the downlink sTTIs are grouped and matched according to the number of packets of the uplink sTTI:
  • the 36th, 37sTTI is divided into a group, which corresponds to the 7sTTI;
  • the 0th, 1sTTI is divided into a group, which corresponds to the 8th, 9sTTI;
  • the 2nd, 3sTTI is divided into a group, which corresponds to the 10th, 11sTTI;
  • the 4th, 5th, and 6th TTIs are grouped and correspond to the 14th and 15th TTIs;
  • the 12th, 13sTTI is divided into a group, which corresponds to the 18th, 19sTTI;
  • the 16th, 17th TTI is divided into a group, which corresponds to the 27sTTI;
  • the 20th, 21sTTI is divided into a group, which corresponds to the 28th, 29s TTI;
  • the 22nd, 23sTTI is divided into a group, which corresponds to the 30th, 31sTTI;
  • the 24th, 25th, and 26th TTIs are grouped and correspond to the 34th and 35th TTIs;
  • the 32nd, 33sTTI is divided into a group, which corresponds to the 38th, 39sTTI.
  • the eNB adds 1-bit information in the existing DCI (whether for uplink data scheduling or downlink data scheduling) to indicate the sTTI in the uplink sTTI group.
  • 1-bit information in the existing DCI whether for uplink data scheduling or downlink data scheduling
  • For an uplink sTTI group there are two sTTIs. If an uplink group including 8,9s TTI is indicated, the eNB configures the bit to be set to indicate 8sTTI. The reset indicates 9sTTI, and vice versa.
  • the UE After receiving the uplink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI upload data in the sTTI group.
  • the UE After receiving the downlink data scheduling indication, if the uplink sTTI group corresponding to the current downlink sTTI includes two sTTIs, the UE searches for the new bit to determine which sTTI feedback response data in the sTTI group.
  • 12 is a group diagram of a radio frame structure 2 of an sTTI of 7 symbol length, and one radio frame includes 20 sTTIs.
  • the uplink and downlink sTTIs are no longer grouped.
  • the downlink sTTI corresponds to the first uplink sTTI with an interval greater than or equal to 4 sTTIs, and the timing of uplink data scheduling and downlink data feedback is determined. For example, if the uplink data scheduling indication is sent in the downlink sTTI with the sequence number 0, the uplink data may be sent in the uplink sTTI with the sequence number 4; and the downlink data scheduling indication is sent in the downlink sTTI with the sequence number 1, and the uplink sTTI with the sequence number 4 may be used. Feedback response data; when the uplink data scheduling indication is sent in the sTTI with sequence number 3, the uplink data may be sent in the uplink sTTI with sequence number 9.
  • a timing method for time division duplex communication determines whether it is necessary to increase the control signaling by determining whether it is necessary to group the uplink/downlink short transmission time interval.
  • the additional indication information is used to indicate that the user equipment uploads data or feeds back the uplink short transmission time interval sequence number in the uplink short transmission time interval group of the downlink data scheduling, or does not need to add additional indication information in the control signaling, but according to the default
  • the uplink/short-term data scheduling is performed on the uplink short transmission time interval determined by the rule, so that the uplink/downlink data scheduling is performed on any downlink sTTI, and the uplink scheduling timing and/or the downlink response timing can satisfy the TDD new frame structure and short transmission. Time interval combined with timing requirements.
  • FIG. 13 is a schematic flowchart of a method for scheduling uplink and downlink data according to an embodiment of the present disclosure, where the method includes the following steps:
  • the base station When the base station performs uplink data scheduling or downlink data scheduling on the one or more downlink sTTIs of the downlink sTTI packet, the base station adds an indication information to the control signaling, which may be: adding 1 bit to the downlink control indication.
  • the information is sent to the user equipment, where the indication information is used to indicate an uplink sTTI sequence number in the uplink sTTI packet for performing the upload data or the downlink data scheduling feedback, and the uplink sTTI packet is configured to perform uplink data scheduling or downlink data scheduling.
  • the downlink sTTI packet corresponds.
  • the indication information is used to indicate the uplink sTTI sequence in the uplink sTTI packet for performing the upload data and the downlink data scheduling feedback; if the base station only groups the uplink sTTI, The indication information is used to indicate an uplink sTTI sequence number in the uplink sTTI packet of the uploaded data.
  • S202 Upload data or feed back downlink data scheduling on an uplink sTTI corresponding to an uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • the user equipment After receiving the control signaling, the user equipment uploads data or feeds back downlink data scheduling on the uplink sTTI corresponding to the uplink sTTI sequence in the uplink sTTI packet indicated by the indication information, so that the downlink data scheduling is performed on any downlink sTTI/
  • its uplink scheduling timing and/or downlink response timing can meet the timing requirements of the combination of the TDD new frame structure and the short transmission time interval.
  • the base station has indicated that the user equipment uploads data or feeds back the uplink in the uplink short transmission time interval group of the downlink data scheduling by adding additional indication information in the control signaling.
  • the short transmission time interval sequence number is used to perform uplink/downlink data scheduling on any downlink sTTI, and the uplink scheduling timing and/or the downlink response timing can satisfy the timing requirement after the combination of the TDD new frame structure and the short transmission time interval.
  • FIG. 14 is a schematic structural diagram of a base station according to an embodiment of the present disclosure, where the base station 1000 includes:
  • the determining unit 11 is configured to determine, for a given radio frame structure, whether the uplink short transmission time interval sTTI and/or the downlink sTTI need to be grouped.
  • the given radio frame structure refers to two radio frame structures under the new special subframe type 1 shown in FIG. 3.
  • the S sub-frame in the radio frame structure 1 The frame includes 9 downlink symbols, 1 GP, 4 uplink symbols, and the S1 subframe includes 11 downlink symbols, 1 GP, and 2 uplink symbols.
  • the radio frame structure 2 The S subframe in the middle contains 9 downlink symbols, 1 GP, 4 uplink symbols, and the S1 subframe includes 7 downlink symbols, 1 GP, and 6 uplink symbols.
  • the uplink scheduling timing and the downlink response timing are designed with a short transmission time interval as a granularity, that is, the short transmission time interval is defined herein as a minimum scheduling unit in the time domain.
  • a radio frame includes multiple uplink/downlink sTTIs, and for the difference between the two radio frame structures and the up/down symbols included in one sTTI, we consider whether it is necessary to group the uplink sTTI and/or the downlink sTTI for
  • the TDD new frame structure combines the timing design of the sTTI mechanism.
  • the determining unit 11 is specifically configured to: if the sTTI includes one symbol, two symbols, three or four symbols, for the given radio frame structure, determine that the uplink sTTI and the downlink sTTI need to be grouped;
  • the sTTI includes 7 symbols, it is determined that only the uplink sTTI needs to be grouped;
  • the uplink sTTI or the downlink sTTI need not be grouped.
  • the grouping unit 12 is configured to group and match the uplink sTTI and the downlink sTTI when the uplink sTTI and the downlink sTTI need to be grouped.
  • the indicating unit 13 is configured to add first indication information to the control signaling, where the first indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet for performing uplink data or downlink data scheduling feedback, where the uplink sTTI packet is The downlink sTTI packet corresponding to the uplink data scheduling or the downlink data scheduling corresponds.
  • the sending unit 14 is configured to send the control signaling to the user equipment.
  • the sTTI includes 1 symbol, 2 symbols, 3 or 4 symbols, it is determined that the uplink sTTI and the downlink sTTI need to be grouped.
  • FIG. 15 is a schematic structural diagram of further refinement of the grouping unit in FIG. 14, the grouping unit 12 including:
  • the uplink sub-unit 121 is configured to divide the number of consecutive uplink sTTIs into one segment in the radio frame, to obtain at least one uplink sTTI segment, where a is a positive integer greater than or equal to 2;
  • the downlink sTTI segment is configured to determine a downlink sTTI segment corresponding to the uplink sTTI segment, and the starting sTTI segment of the downlink sTTI segment is m-k+1.
  • the terminating sTTI number of the downlink sTTI segment is nk, where m is the sequence number of the previous uplink sTTI of the uplink sTTI segment, n is the sequence number of the last uplink sTTI in the uplink sTTI segment, and k is a pre- Minimum scheduling gap;
  • the uplink packet unit 123 is configured to group each uplink sTTI segment to obtain at least one uplink sTTI packet.
  • the downlink packet unit 124 is configured to group the downlink sTTI segments corresponding to the uplink sTTI segment to obtain at least one downlink sTTI packet.
  • the packet matching unit 125 is configured to match the at least one downlink sTTI packet with the at least one uplink sTTI packet.
  • the starting sTTI of the downlink sTTI segment is the first downlink sTTI after the mk sequence; and/or, if uplink If the number a of the sTTI subdivision is greater than k, the termination sTTI sequence of the downlink sTTI subdivision is na.
  • the base station After performing uplink data scheduling or downlink data scheduling on the one or more downlink sTTIs of one downlink sTTI packet, the base station adds one to the control signaling after completing the uplink sTTI and the downlink sTTI for packet and matching.
  • the first indication information may be: adding 1 bit information to the downlink control indication, and sending the control signaling to the user equipment, where the first indication information is used to indicate an uplink sTTI in the uplink sTTI packet for performing uplink data or downlink data scheduling feedback.
  • the uplink sTTI packet corresponds to a downlink sTTI packet for performing uplink data scheduling or downlink data scheduling.
  • the user equipment After receiving the control signaling, the user equipment uploads data or feeds back downlink data scheduling on the uplink sTTI corresponding to the uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • the first indication information is 1 bit. For example, if one uplink sTTI group includes two sTTIs, and indicates an uplink group that includes 13, 14 s TTI, the eNB configures the bit to be a set indication 13sTTI, and the reset indicates 14sTTI, and vice versa.
  • the grouping unit 12 is further configured to divide the uplink sTTI into a group when only the uplink sTTI needs to be grouped, and perform all the downlink sTTIs with the uplink sTTI interval in the uplink sTTI packet greater than or equal to k sTTIs when performing uplink data scheduling. It can be used to send an uplink data scheduling indication, where k is a preset minimum scheduling gap.
  • the indicating unit 13 is further configured to add second indication information to the control signaling, where the second indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet of the uploaded data.
  • the sTTI For a given first radio frame structure, if the sTTI includes 7 symbols, it is determined that only the uplink sTTI needs to be grouped, that is, the downlink sTTIs are no longer grouped.
  • all downlink sTTIs with an uplink sTTI interval greater than or equal to k sTTIs in the uplink sTTI packet may be used to send an uplink data scheduling indication, where k is a preset minimum scheduling gap, and k is preferably a value range of 1 to 4, and adding second indication information to the control signaling, where the second indication information is used to indicate an uplink sTTI sequence number in an uplink sTTI packet of the uploaded data.
  • the second indication information is 1 bit.
  • the downlink sTTI corresponds to the first uplink sTTI with an interval greater than or equal to k sTTIs, and the timing of the downlink data feedback is determined.
  • the uplink sTTI that performs downlink data feedback can include a downlink symbol or a GP.
  • the indicating unit 13 is further configured to: when the uplink sTTI or the downlink sTTI is not required to be grouped, indicate that the downlink sTTI interval with the uplink or downlink data scheduling indication is greater than or equal to k sTTIs of the first uplink sTTI upload data or feedback downlink Data scheduling.
  • the timing design is: the first uplink sTTI upload data or the feedback downlink data schedule with the downlink sTTI interval of the uplink or downlink data scheduling indication being greater than or equal to k sTTIs.
  • a base station determines whether it is necessary to group the uplink/downlink short transmission time interval, and determines whether it is necessary to add additional indication information to the control signaling to indicate whether different packets need to be used.
  • the scheduling timing and/or the downlink response timing can meet the timing requirements of the combination of the TDD new frame structure and the short transmission time interval.
  • FIG. 16 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure, where the user equipment 2000 includes:
  • the receiving unit 21 is configured to: when receiving an indication of the uplink data scheduling or the downlink data scheduling sent on the downlink sTTI packet, receive the control signaling, where the control signaling includes the added indication information, where the indication information is used to indicate And performing an uplink sTTI sequence in the uplink sTTI packet of the uplink data sTTI packet, where the uplink sTTI packet corresponds to the downlink sTTI packet.
  • the base station When the base station performs uplink data scheduling or downlink data scheduling on the one or more downlink sTTIs of the downlink sTTI packet, the base station adds an indication information to the control signaling, which may be: adding 1 bit to the downlink control indication.
  • the information is sent to the user equipment, where the indication information is used to indicate an uplink sTTI sequence number in the uplink sTTI packet for performing the upload data or the downlink data scheduling feedback, and the uplink sTTI packet is configured to perform uplink data scheduling or downlink data scheduling.
  • the downlink sTTI packet corresponds.
  • the indication information is used to indicate the uplink sTTI sequence in the uplink sTTI packet for performing the upload data and the downlink data scheduling feedback; if the base station only groups the uplink sTTI, The indication information is used to indicate an uplink sTTI sequence number in the uplink sTTI packet of the uploaded data.
  • the sending unit 22 is configured to upload data or feed back downlink data scheduling on an uplink sTTI corresponding to an uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • the user equipment After receiving the control signaling, the user equipment uploads data or feeds back downlink data scheduling on the uplink sTTI corresponding to the uplink sTTI sequence in the uplink sTTI packet indicated by the indication information, so that the downlink data scheduling is performed on any downlink sTTI/
  • its uplink scheduling timing and/or downlink response timing can meet the timing requirements of the combination of the TDD new frame structure and the short transmission time interval.
  • the base station has indicated that the user equipment uploads data or feeds back the downlink short transmission time in the uplink short transmission time interval group scheduled by the downlink data by adding additional indication information in the control signaling.
  • Interval sequence number so that uplink/downlink data scheduling is performed on any downlink sTTI, and its uplink scheduling timing and/or downlink response timing can satisfy the TDD new frame structure. Timing requirements combined with short transmission time intervals.
  • FIG. 17 is a schematic structural diagram of another base station according to an embodiment of the present invention, where the base station 3000 includes: a processor 31 and a transmitter 32;
  • the processor 31 is configured to determine, for a given radio frame structure, whether to group the uplink short transmission time interval sTTI and/or the downlink sTTI;
  • the processor 31 is further configured to: when the uplink sTTI and the downlink sTTI need to be grouped, the uplink sTTI and the downlink sTTI are grouped and matched, and the first indication information is added to the control signaling, where the first indication information is used. And an uplink sTTI sequence in the uplink sTTI packet that is used to perform uplink data scheduling or downlink data scheduling, where the uplink sTTI packet is in the uplink sTTI packet;
  • the processor 31 is further configured to, when only the uplink sTTI needs to be grouped, divide the uplink sTTI into a group, and perform uplink data scheduling, and all the uplink sTTIs in the uplink sTTI packet are greater than or equal to k sTTIs.
  • the sTTI can be used to send an uplink data scheduling indication, where k is a preset minimum scheduling gap, and the second indication information is added to the control signaling, where the second indication information is used to indicate the uplink sTTI packet in the uploaded data.
  • Upstream sTTI sequence number
  • the transmitter 32 is configured to send the control signaling to the user equipment
  • the processor 31 is further configured to: when the uplink sTTI or the downlink sTTI is not required to be grouped, indicate that the first uplink sTTI upload data is greater than or equal to k sTTIs with a downlink sTTI interval that is sent with an uplink or downlink data scheduling indication. Feedback downlink data scheduling.
  • the processor 31 is specifically configured to:
  • the uplink sTTI and the downlink sTTI need to be grouped;
  • the sTTI includes 7 symbols, it is determined that only the uplink sTTI needs to be grouped;
  • the uplink sTTI or the downlink sTTI need not be grouped
  • the given radio frame structure includes the first radio frame structure and the second radio frame structure.
  • the processor 31 is specifically configured to:
  • a starting sTTI sequence of the downlink sTTI segment is m-k+1, and a termination sTTI of the downlink sTTI segment
  • the sequence number is nk, where m is the sequence number of the previous uplink sTTI of the uplink sTTI segment, n is the sequence number of the last uplink sTTI in the uplink sTTI segment, and k is a preset minimum scheduling gap;
  • Each uplink sTTI segment is grouped to obtain at least one uplink sTTI packet
  • the downlink sTTI segments corresponding to the uplink sTTI segment are grouped to obtain at least one downlink sTTI packet, and the at least one downlink sTTI packet is matched with the at least one uplink sTTI packet.
  • the starting sTTI sequence of the downlink sTTI segment is the first downlink sTTI after the m-k sequence number;
  • the sequence of the sTTI of the downlink sTTI segment is n-a.
  • the first indication information or the second indication information is 1 bit.
  • a base station determines whether it is necessary to group the uplink/downlink short transmission time interval, and determines whether it is necessary to add additional indication information to the control signaling to indicate whether different packets need to be used.
  • the uplink short transmission time interval sequence number in the uplink short transmission time interval group of the user equipment uploading data or feedback downlink data scheduling, or the uplink short transmission determined according to the default rule, without adding additional indication information in the control signaling The uplink data scheduling or the downlink data scheduling is performed on the time interval, so that the uplink/downlink data scheduling is performed on any downlink sTTI, and the uplink scheduling timing and/or the downlink response timing can satisfy the timing of combining the TDD new frame structure and the short transmission time interval. demand.
  • FIG. 18 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure, where the user equipment 4000 includes: a receiver 41 and a transmitter 42;
  • the receiver 41 is configured to receive control signaling when receiving an indication of uplink data scheduling or downlink data scheduling sent on a downlink sTTI packet, where the control signaling includes added indication information, where the indication information is used. And indicating an uplink sTTI sequence number in the uplink sTTI packet, where the uplink sTTI packet is corresponding to the downlink data sTTI packet;
  • the transmitter 42 is configured to upload data or feed back downlink data scheduling on an uplink sTTI corresponding to an uplink sTTI sequence in the uplink sTTI packet indicated by the indication information.
  • the base station has indicated that the user equipment uploads data or feeds back the downlink short transmission time in the uplink short transmission time interval group scheduled by the downlink data by adding additional indication information in the control signaling.
  • the interval sequence number is used to perform uplink/downlink data scheduling on any downlink sTTI, and the uplink scheduling timing and/or the downlink response timing can satisfy the timing requirement after the combination of the TDD new frame structure and the short transmission time interval.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable).
  • EEPROM Electrically Error Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • Any connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium.
  • DSL Digital Subscriber Line
  • a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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Abstract

一种时分双工通信的定时方法、上下行数据调度方法、基站及用户设备。通过确定是否需要对上/下行短传输时间间隔进行分组，针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。

Description

一种时分双工通信的定时方法、基站及用户设备 技术领域
本发明涉及通信技术领域，尤其涉及一种时分双工通信的定时方法、基站及用户设备。
背景技术
在现有的时分双工-长期演进(英文：Time Division Duplexing-Long Term Evolution，简称：TDD-LTE)***中，无线帧的长度是10ms，分成10个长度为1ms的子帧，每个子帧中包括多个符号。其中，子帧包括：上行子帧(以“U”表示)、下行子帧(以“D”表示)和特殊子帧(以“S”表示)。TDD-LTE中支持不同的上下行时间配比，可以根据不同的业务类型，调整上下行子帧配比，以满足上下行非对称业务的需求。在同一个无线帧内，不同的上下行子帧的配置如图1所示。
在未来的TDD-LTE演进的过程中，为了进行相应的性能增强，TDD的结构可能演进为新的结构，如图2所示。在新的TDD结构中，新增了两种特殊子帧类型，特殊子帧类型1主要由下行符号构成，特殊子帧类型2主要由上行符号构成，且每种特殊子帧格式中的保护间隔(英文：Guard Period，简称：GP)位置都可通过配置变更，如图2所示，GP分别位于倒数第二个符号和第二个符号。
在现有的LTE技术中，传输时间间隔(英文：Transmission Time Interval，简称：TTI)为数据传输间隔的最小粒度，即为1个子帧，14个符号。为了降低***的传输时延，引入了短传输时间间隔(英文：short TTI，简称：sTTI)的机制，即减少了数据在时域上的调度粒度。sTTI机制相对于现有的LTE***的技术，减少了TTI的时间，即调度粒度从原有的14符号长度减少至7符号，3或4符号，2符号，或者1符号。该机制减少了上下行发送的等待时间，从而减少了***的传输时延。
现有的TDD新帧结构的时序设计能够保证***的正常运行，在TDD-LTE中，上行调度时序与下行应答时序以子帧为粒度进行设计，下行子帧调度到调度上行子帧的间隔为固定数值，下行数据发送到上行反馈应答的间隔为固定数值，因此，现有的TDD时序设计无法应用于TDD新帧结构结合sTTI的机制 中。
发明内容
本发明实施例提供了一种时分双工通信的定时方法、上下行数据调度方法、基站及用户设备，以使上行调度时序和/或下行应答时序能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
第一方面，提供了一种时分双工通信的定时方法，所述方法包括：
对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，并在控制信令中增加第一指示信息，发送所述控制信令给用户设备，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
在该设计中，通过确定是否需要对上/下行短传输时间间隔进行分组，针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
结合第一方面，在一种可能的设计中，所述对于给定的无线帧结构，确定 是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组，包括：
对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组；
其中，所述给定的无线帧结构包括所述第一无线帧结构和所述第二无线帧结构。
在该设计中，根据sTTI包括的符号的多少，确定是否需要对上行sTTI和/或下行sTTI进行分组。
结合第一方面，在另一种可能的设计中，所述当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，包括：
将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个上行sTTI分部，其中，a为大于或等于2的正整数；
对应每个上行sTTI分部，确定与所述上行sTTI分部对应的下行sTTI分部，所述下行sTTI分部的起始sTTI序号为m-k+1，所述下行sTTI分部的终止sTTI序号为n-k，其中，m为所述上行sTTI分部的前一个上行sTTI的序号，n为所述上行sTTI分部中的最后一个上行sTTI的序号；
将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；
将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组，并将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
在该设计中，根据上行sTTI分部确定下行sTTI分部，对上行sTTI分部和下行sTTI分部进行分组，然后对上行sTTI分组和下行sTTI分组进行匹配，从而完成上行sTTI和下行sTTI的分组匹配。
结合第一方面，在又一种可能的设计中，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，
若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为 n-a。
该设计是对上行sTTI和下行sTTI的分组的特定情况的补充说明。
结合第一方面，在又一种可能的设计中，所述第一指示信息或所述第二指示信息为1比特。
在该设计中，仅需在控制信令中增加1比特即可实现进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号的指示，信令开销小。
第二方面，提供了一种上下行数据调度方法，所述方法包括：
当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
在该设计中，由于基站已通过在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，从而在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
第三方面，提供了一种基站，所述基站包括：
确定单元，用于对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
分组单元，用于当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配；
指示单元，用于在控制信令中增加第一指示信息，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
所述分组单元还用于当仅需要对上行sTTI进行分组时，将上行sTTI分为 一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙；
所述指示单元还用于在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
发送单元，用于发送所述控制信令给用户设备；
所述指示单元还用于当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
基于同一发明构思，由于该装置解决问题的原理以及有益效果可以参见上述第一方面和第一方面的各可能的实施方式以及所带来的有益效果，因此该装置的实施可以参见方法的实施，重复之处不再赘述。
第四方面，提供了一种用户设备，所述用户设备包括：
接收单元，用于当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
发送单元，用于在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
第五方面，提供了一种基站，所述基站包括：处理器和发送器；
所述处理器用于对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
所述处理器还用于当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，并在控制信令中增加第一指示信息，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
所述处理器还用于当仅需要对上行sTTI进行分组时，将上行sTTI分为一 组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
所述发送器用于发送所述控制信令给用户设备；
所述处理器还用于当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
基于同一发明构思，由于该设备解决问题的原理以及有益效果可以参见上述第一方面和第一方面的各可能的实施方式以及所带来的有益效果，因此该设备的实施可以参见方法的实施，重复之处不再赘述。
第六方面，提供了一种用户设备，所述用户设备包括：接收器和发送器；
所述接收器用于当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
所述发送器用于在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
实施本发明实施例提供了一种时分双工通信的定时方法、上下行数据调度方法、基站及用户设备，通过确定是否需要对上/下行短传输时间间隔进行分组，针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有的TDD-LTE无线帧上下行子帧配比示意图；
图2未来的两种TDD演进子帧结构示意图；
图3为图2所示的新的特殊子帧类型1下的两种无线帧结构示意图；
图4为本发明实施例提供的一种时分双工通信的定时方法的流程示意图；
图5为1符号长度的sTTI的无线帧结构1的分组示意图；
图6为2符号长度的sTTI的无线帧结构1的分组示意图；
图7为3/4符号长度的sTTI的无线帧结构1的分组示意图；
图8为7符号长度的sTTI的无线帧结构1的分组示意图；
图9为1符号长度的sTTI的无线帧结构2的分组示意图；
图10为2符号长度的sTTI的无线帧结构2的分组示意图；
图11为3/4符号长度的sTTI的无线帧结构2的分组示意图；
图12为7符号长度的sTTI的无线帧结构2的分组示意图；
图13为本发明实施例提供的一种上下行数据调度方法的流程示意图；
图14为本发明实施例提供的一种基站的结构示意图；
图15为图14中的分组单元的结构示意图；
图16为本发明实施例提供的一种用户设备的结构示意图；
图17为本发明实施例提供的另一种基站的结构示意图；
图18为本发明实施例提供的另一种用户设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种时分双工通信的定时方法、上下行数据调度方法、基站及用户设备，通过确定是否需要对上/下行短传输时间间隔进行分组， 针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
图4为本发明实施例提供的一种时分双工通信的定时方法的流程示意图，该方法包括以下步骤：
S101，对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组。
这里，给定的无线帧结构是指图3所示的新的特殊子帧类型1下的两种无线帧结构，在图3的第一种无线帧结构中，无线帧结构1中的S子帧包含9个下行符号，1个GP，4个上行符号，S1子帧包含11个下行符号，1个GP，2个上行符号；在图3的第二种无线帧结构中，无线帧结构2中的S子帧包含9个下行符号，1个GP，4个上行符号，S1子帧包含7个下行符号，1个GP，6个上行符号。
在本实施例中，上行调度时序与下行应答时序以短传输时间间隔为粒度进行设计，即短传输时间间隔在这里的定义是一个时域上的最小调度单元。
由于一个无线帧中包含多个上行/下行sTTI，且针对两种无线帧结构及一个sTTI所包含的上/下符号的不同，我们考虑是否需要对上行sTTI和/或下行sTTI进行分组，以进行TDD新帧结构结合sTTI的机制下的定时设计。
具体地，对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组。
后面将通过具体的示例一一进行描述。
S102，当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，并在控制信令中增加第一指示信息，发送所述控制信 令给用户设备，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应。
本步骤中，对于给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组。
为了降低分组设计的复杂度，本实施例方案中设计上行调度授权定时与下行数据反馈定时使用相同的上下行分组，并且采用分组与独立指示相结合的方案进行时序设计。分组设计原则如下：
1.确定需要进行分组的上行sTTI并划分上行sTTI分部
对于一个无线帧中的sTTI，连续的sTTI数量大于等于2个时，则进行上行sTTI分部，即将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个上行sTTI分部，其中，a为大于或等于2的正整数。
2.确定需要进行分部的下行sTTI并划分下行sTTI分部
以该连续上行sTTI部的前一个上行sTTI的序号m为基础，需要进行分部的下行sTTI的起始序号为m-k+1(如该m-k+1序号的sTTI为上行sTTI，则向后寻找最近的下行TTI的序号作为起始序号)，以连续上行sTTI组中的最后一个上行sTTI的序号n为基础，需要进行分部的下行sTTI的终止序号为n-k；该下行连续sTTI分部复用该连续上行sTTI分部的数量a，并尽可能地均分该段连续的下行sTTI。k为预设的最小调度间隙，优选地，k＝4。
3.设定上下行短TTI分部间的对应关系
根据上下行的短TTI的分组序号，进行一一对应。具体地，将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组，并将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
在进行分组时，特定情况下，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为n-a。
在完成上行sTTI和下行sTTI进行分组和匹配后，当在某个下行sTTI分组中的一个或多个下行sTTI上向用户设备进行上行数据调度或下行数据调度时，基站在控制信令中增加一个第一指示信息，具体可以是在下行控制指示(英 文：Downlink Control Information，简称：DCI)中增加1bit信息，将该控制信令发送给用户设备，第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应。用户设备在接收到该控制信令后，在指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
所述第一指示信息为1比特。例如，对于1个上行sTTI组包含2个sTTI，如指示包含13,14sTTI的上行组，eNB配置该bit为置位指示13sTTI，复位指示14sTTI，反之亦可。
S103，当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号。
对于给定的第一种无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组，即不再对下行sTTI进行分组。进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，k优选的取值范围为1～4，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号。所述第二指示信息为1比特。在进行上行数据调度时，进行数据上传的上行sTTI不能够包含下行符号或GP。
对于下行数据调度，下行sTTI与间隔大于或等于4个sTTI的第一个上行sTTI相对应，确定下行数据反馈的时序。在进行下行数据调度时，进行下行数据反馈的上行sTTI能够包含下行符号或GP。
S104，当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
对于给定的第二种无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组。其定时设计是：在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或 反馈下行数据调度。
下面分别针对图3所示的新的特殊子帧类型1下的两种无线帧结构的上下行时序配置进行描述：
一、针对图3中的第一种无线帧结构的上下行时序配置
针对图3中的第一种无线帧结构，以及根据无线帧中一个sTTI所包含的符号个数，其上下行时序配置分别描述如下：
1)1符号sTTI
图5为1符号长度的sTTI的无线帧结构1的分组示意图，一个无线帧包括140个sTTI。
如图5所示，在一个完整的无线帧中，存在七块较长的连续上行sTTI，依照规则1确定需要进行分组的上行sTTI并划分上行sTTI分组：需要进行分组的sTTI的序号有六部分，第一部分为24-41上行sTTI，第二部分为54-55上行sTTI，第三部分为68-69上行sTTI，第四部分为94-97上行sTTI，第五部分为110-111上行sTTI，第六部分为124-125上行sTTI，第七部分为138-139上行sTTI。考虑到节省用于指示的bit数量，将2个上行sTTI分为一组。
依照规则2确定需要进行分组的下行sTTI并划分下行sTTI分组，则第一部分上行sTTI分组对应的下行sTTI范围是136&0-22，这里m＝139，n＝41，k＝4，具体地，对于进行分组的下行sTTI的起始序号为m-k+1＝139-4+1＝136，对于进行分组的下行sTTI的终止序号为n-k＝41-4＝37，由于序号为24-37的sTTI仍为上行sTTI，直至序号22才为下行sTTI，则终止序号为22，则得到第一部分上行sTTI分组对应的下行sTTI范围是136&0-22，对于其它部分的下行分部计算方式类似，在此不再一一描述；第二部分上行sTTI分组对应的下行sTTI范围是42-51；第三部分上行sTTI分组对应的下行sTTI范围是52&56-65；第四部分上行sTTI分组对应的下行sTTI的范围是66&70-92；第五部分上行sTTI分组对应的下行sTTI范围是98-107；第六部分上行sTTI分组对应的下行sTTI范围是108&112-121；第七部分上行sTTI分组对应的下行sTTI范围是122&126-135。
而后，将下行sTTI按照上行sTTI的分组数量进行分组并匹配：
第一部分：
第136,0sTTI分为一组，其与第24,25sTTI相对应；
第1,2sTTI分为一组，其与第26,27sTTI相对应；
第3,4sTTI分为一组，其与第28,29sTTI相对应；
第5,6,7sTTI分为一组，其与第30,31sTTI相对应；
第8,9,10sTTI分为一组，其与第32,33sTTI相对应；
第11,12,13sTTI分为一组，其与第34,35sTTI相对应；
第14,15,16sTTI分为一组，其与第36,37sTTI相对应；
第17,18,19sTTI分为一组，其与第38,39sTTI相对应；
第20,21,22sTTI分为一组，其与第40,41sTTI相对应；
第二部分：
第42-51TTI分为一组，其与第54,55sTTI相对应；
第三部分：
第52&56-65TTI分为一组，其与第68,69sTTI相对应；
第四部分：
第66,70-80sTTI分为一组，其与第94,95sTTI相对应；
第81-92sTTI分为一组，其与第96,97sTTI相对应；
第五部分：
第98-107TTI分为一组，其与第110,111sTTI相对应；
第六部分：
第108&112-121TTI分为一组，其与第124,125sTTI相对应；
第七部分：
第122&126-135TTI分为一组，其与第138,139sTTI相对应；
同时，eNB在现有的DCI中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。对于1个上行sTTI组包含2个sTTI，如指示包含24,25sTTI的上行组，eNB配置该bit为置位指示24sTTI，复位指示25sTTI，反之亦可。
用户设备(英文：User Equipment，简称：UE)在接收到上行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
UE在接收到下行数据调度指示后，如果当前下行sTTI对应的上行sTTI 组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI反馈应答数据。
2)2符号sTTI
图6为2符号长度的sTTI的无线帧结构1的分组示意图，一个无线帧包括70个sTTI。
如图6所示，在一个完整的无线帧中，存在两块较长的连续上行sTTI，依照规则1确定需要进行分组的上行sTTI并划分上行sTTI分组：需要进行分组的sTTI的序号有两部分，第一部分为12-20上行sTTI，第二部分为47-48上行sTTI。考虑到节省用于指示的bit数量，将2个上行sTTI分为一组。
依照规则2确定需要进行分组的下行sTTI并划分下行sTTI分组，则第一部分上行sTTI分组对应的下行sTTI范围是66-68&0-11，这里m＝69，n＝20，k＝4，具体地，对于进行分组的下行sTTI的起始序号为m-k+1＝69-4+1＝66，对于进行分组的下行sTTI的终止序号为n-k＝20-4＝16，由于序号为16-12的sTTI仍为上行sTTI，直至序号11才为下行sTTI，则终止序号为11，则得到第一部分上行sTTI分组对应的下行sTTI范围是66-68&0-11；第二部分上行sTTI分组对应的下行sTTI范围是31-33&35-44，这里m＝34，n＝48，k＝4，具体地，对于进行分组的下行sTTI的起始序号为m-k+1＝34-4+1＝31，对于进行分组的下行sTTI的终止序号为n-k＝48-4＝44，则得到第二部分上行sTTI分组对应的下行sTTI范围是31-33&35-44。
而后，将下行sTTI按照上行sTTI的分组数量进行分组并匹配：
第一部分：
第66,67,68sTTI分为一组，其与第12sTTI相对应；
第0,1,2sTTI分为一组，其与第13,14sTTI相对应；
第3,4,5sTTI分为一组，其与第15,16sTTI相对应；
第6,7,8sTTI分为一组，其与第17,18sTTI相对应；
第9,10,11sTTI分为一组，其与第19,20sTTI相对应；
需要说明的是，这里的分组匹配不作限定。
第二部分：
第31,32,33,35,36,37,38,39,40,41,42,43,44sTTI分为一组，其与第47,48sTTI相对应；
其它的下行sTTI，与间隔大于或等于4个sTTI的第一个上行sTTI相对应，如：21sTTI与27sTTI相对应。
同时，基站(英文：eNodeB，简称：eNB)在现有的下行控制信息中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。对于1个上行sTTI组包含2个sTTI，如指示包含13,14sTTI的上行组，eNB配置该bit为置位指示13sTTI，复位指示14sTTI，反之亦可。
UE在接收到上行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
UE在接收到下行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI反馈应答数据。
3)3/4符号sTTI
图7为3/4符号长度的sTTI的无线帧结构1的分组示意图，一个无线帧包括40个sTTI。
如图7所示，在一个完整的无线帧中，存在一块较长的连续上行sTTI，依照规则1确定需要进行分组的上行sTTI并划分上行sTTI分组：需要进行分组的上行sTTI的序号有一部分，为上行sTTI 7-11。考虑到节省用于指示的bit数量，将2个上行sTTI分为一组。
依照规则2确定需要进行分组的下行sTTI并划分下行sTTI分组，则该部分上行sTTI分组对应的下行sTTI范围是36-38&0-6，这里，m＝39，n＝11，k＝4，具体地，对于进行分组的下行sTTI的起始序号为m-k+1＝39-4+1＝36，对于进行分组的下行sTTI的终止序号为n-k＝11-4＝7，由于序号为7的sTTI仍为上行sTTI，则往前找到第一个下行sTTI，其序号为6，则序号为6的sTTI为进行分组的下行sTTI的终止序号，则得到该部分上行sTTI分组对应的下行sTTI范围是36-38&0-6。
而后，将下行sTTI按照上行sTTI的分组数量进行分组并匹配：
第36,37,38sTTI分为一组，其与第7sTTI相对应；
第0,1,2,3sTTI分为一组，其与第8,9sTTI相对应；
第4,5,6sTTI分为一组，其与第10,11sTTI相对应；
需要说明的是，这里的分组匹配不作限定。
其它的下行sTTI，与间隔大于或等于4个sTTI的第一个上行sTTI相对应，如：12sTTI与19sTTI相对应。
同时，eNB在现有的DCI中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。对于1个上行sTTI组包含2个sTTI，如指示包含8,9sTTI的上行组，eNB配置该bit为置位指示8sTTI，复位指示9sTTI，反之亦可。
UE在接收到上行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
用户设备UE在接收到下行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI反馈应答数据。
4)7符号sTTI
图8为7符号长度的sTTI的无线帧结构1的分组示意图，一个无线帧包括20个sTTI。
在7符号长度的sTTI下，不再对下行sTTI进行分组，同时将仅有的2个上行sTTI分为一组。
对于上行数据调度，所有与该sTTI组内上行sTTI间隔大于或等于4个sTTI的下行sTTI都可用于调度该sTTI组内的上行sTTI，在进行上行数据调度时，上行sTTI必须是一个完整的上行sTTI，例如，在序号为0的下行sTTI发送上行数据调度，则可以在序号为4的上行sTTI上传数据，在序号为1的下行sTTI发送上行数据调度，则可以在序号为5的上行sTTI上传数据。同时，eNB在现有的DCI中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。UE在接收到上行数据调度指示后，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
对于下行数据调度，下行sTTI与间隔大于或等于4个sTTI的第一个上行sTTI相对应，确定下行数据反馈的时序，进行下行数据调度时，进行反馈应答数据的上行sTTI可以不是一个完整的上行sTTI，例如，在序号为2的下行sTTI上发送下行数据，可以在序号为5的sTTI中的上行符号中进行数据应答。
二、针对图3中的第二种无线帧结构的上下行时序配置
针对图3中的第二种无线帧结构，以及根据无线帧中一个sTTI所包含的符号个数，其上下行时序配置分别描述如下：
1)1符号sTTI
图9为1符号长度的sTTI的无线帧结构2的分组示意图，一个无线帧包括140个sTTI。
如图9所示，在一个完整的无线帧中，存在六块较长的连续上行sTTI，依照规则1确定需要进行分组的上行sTTI并划分上行sTTI分组：需要进行分组的sTTI的序号有六部分，第一部分为24-41上行sTTI，第二部分为50-55上行sTTI，第三部分为64-69上行sTTI，第四部分为94-111上行sTTI，第五部分为120-125上行sTTI，第六部分为134-139上行sTTI。考虑到节省用于指示的bit数量，将2个上行sTTI分为一组。
依照规则2确定需要进行分组的下行sTTI并划分下行sTTI分组，则第一部分上行sTTI分组对应的下行sTTI范围是0-22；第二部分上行sTTI分组对应的下行sTTI范围是42-48；第三部分上行sTTI分组对应的下行sTTI范围是56-62；第四部分上行sTTI分组对应的下行sTTI范围是70-92；第五部分上行sTTI分组对应的下行sTTI范围是112-118；第六部分上行sTTI分组对应的下行sTTI范围是126-132。
而后，将下行sTTI按照上行sTTI的分组数量进行分组并匹配：
第一部分：
第0,1sTTI分为一组，其与第24,25sTTI相对应；
第2,3sTTI分为一组，其与第26,27sTTI相对应；
第4,5sTTI分为一组，其与第28,29sTTI相对应；
第6,7sTTI分为一组，其与第30,31sTTI相对应；
第8,9,10sTTI分为一组，其与第32,33sTTI相对应；
第11,12,13sTTI分为一组，其与第34,35sTTI相对应；
第14,15,16sTTI分为一组，其与第36,37sTTI相对应；
第17,18,19sTTI分为一组，其与第38,39sTTI相对应；
第20,21,22sTTI分为一组，其与第40,41sTTI相对应；
第二部分：
第42,43TTI分为一组，其与第50,51sTTI相对应；
第44,45sTTI分为一组，其与第52,53sTTI相对应；
第46,47,48sTTI分为一组，其与第54,55sTTI相对应；
第三部分：
第56,57TTI分为一组，其与第64,65sTTI相对应；
第57,59sTTI分为一组，其与第66,67sTTI相对应；
第60,61,62sTTI分为一组，其与第68,69sTTI相对应；
第四部分：
第70,71sTTI分为一组，其与第94,95sTTI相对应；
第72,73sTTI分为一组，其与第96,97sTTI相对应；
第74,75sTTI分为一组，其与第98,99sTTI相对应；
第76,77sTTI分为一组，其与第100,101sTTI相对应；
第78,79,80sTTI分为一组，其与第102,103sTTI相对应；
第81,82,83sTTI分为一组，其与第104,105sTTI相对应；
第84,85,86sTTI分为一组，其与第106,107sTTI相对应；
第87,88,89sTTI分为一组，其与第108,109sTTI相对应；
第90,91,92sTTI分为一组，其与第110,111sTTI相对应；
第五部分：
第112,113TTI分为一组，其与第120,121sTTI相对应；
第114,115sTTI分为一组，其与第122,123sTTI相对应；
第116,117,118sTTI分为一组，其与第124,125sTTI相对应；
第六部分：
第126,127TTI分为一组，其与第134,135sTTI相对应；
第128,129sTTI分为一组，其与第136,137sTTI相对应；
第130,131,132sTTI分为一组，其与第138,139sTTI相对应；
同时，eNB在现有的DCI中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。对于1个上行sTTI组包含2个sTTI，如指示包含24,25sTTI的上行组，eNB配置该bit为置位指示24sTTI，复位指示25sTTI，反之亦可。
UE在接收到上行数据调度指示后，如果当前下行sTTI对应的上行sTTI 组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
UE在接收到下行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI反馈应答数据。
2)2符号sTTI
图10为2符号长度的sTTI的无线帧结构2的分组示意图，一个无线帧包括70个sTTI。
如图10所示，在一个完整的无线帧中，存在六块较长的连续上行sTTI，依照规则1确定需要进行分组的上行sTTI并划分上行sTTI分组：需要进行分组的sTTI的序号有六部分，第一部分为12-20上行sTTI，第二部分为25-27上行sTTI，第三部分为32-34上行sTTI，第四部分为47-55上行sTTI，第五部分为60-62上行sTTI，第六部分为67-69上行sTTI。考虑到节省用于指示的bit数量，将2个上行sTTI分为一组。
依照规则2确定需要进行分组的下行sTTI并划分下行sTTI分组，则第一部分上行sTTI分组对应的下行sTTI范围是66&0-11；第二部分上行sTTI分组对应的下行sTTI范围是21-23；第三部分上行sTTI分组对应的下行sTTI范围是24&28-30；第四部分上行sTTI分组对应的下行sTTI范围是31&35-46；第五部分上行sTTI分组对应的下行sTTI范围是56-58；第六部分上行sTTI分组对应的下行sTTI范围是59&63-65。
而后，将下行sTTI按照上行sTTI的分组数量进行分组并匹配：
第一部分：
第66,0sTTI分为一组，其与第12sTTI相对应；
第1,2sTTI分为一组，其与第13,14sTTI相对应；
第3,4,5sTTI分为一组，其与第15,16sTTI相对应；
第6,7,8sTTI分为一组，其与第17,18sTTI相对应；
第9,10,11sTTI分为一组，其与第19,20sTTI相对应；
第二部分：
第21TTI分为一组，其与第25sTTI相对应；
第22,23sTTI分为一组，其与第26,27sTTI相对应；
第三部分：
第24,28sTTI分为一组，其与第32TTI相对应；
第29,30TTI分为一组，其与第33,34TTI相对应；
第四部分：
第31,35sTTI分为一组，其与第47sTTI相对应；
第36,37sTTI分为一组，其与第48,49sTTI相对应；
第38,39,40sTTI分为一组，其与第50,51sTTI相对应；
第41,42,43sTTI分为一组，其与第52,53sTTI相对应；
第44,45,46sTTI分为一组，其与第54,55sTTI相对应；
第五部分：
第56TTI分为一组，其与第60sTTI相对应；
第57,58sTTI分为一组，其与第61,62sTTI相对应；
第六部分：
第59,63sTTI分为一组，其与第67TTI相对应；
第64,65TTI分为一组，其与第68,69TTI相对应。
同时，eNB在现有的DCI中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。对于1个上行sTTI组包含2个sTTI，如指示包含13,14sTTI的上行组，eNB配置该bit为置位指示13sTTI，复位指示14sTTI，反之亦可。
UE在接收到上行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
UE在接收到下行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI反馈应答数据。
3)3/4符号sTTI
图11为3/4符号长度的sTTI的无线帧结构2的分组示意图，一个无线帧包括40个sTTI。
如图11所示，在一个完整的无线帧中，存在六块较长的连续上行sTTI，依照规则1确定需要进行分组的上行sTTI并划分上行sTTI分组：需要进行分 组的sTTI的序号有六部分，第一部分为7-11上行sTTI，第二部分为14-15上行sTTI，第三部分为18-19上行sTTI，第四部分为27-31上行sTTI，第五部分为34-35上行sTTI，第六部分为38-39上行sTTI。考虑到节省用于指示的bit数量，将2个上行sTTI分为一组。
依照规则2确定需要进行分组的下行sTTI并划分下行sTTI分组，则第一部分上行sTTI分组对应的下行sTTI范围是36-37&0-3；第二部分上行sTTI分组对应的下行sTTI范围是4-6；第三部分上行sTTI分组对应的下行sTTI范围是12-13；第四部分上行sTTI分组对应的下行sTTI范围是16-17&20-23；第五部分上行sTTI分组对应的下行sTTI范围是24-26；第六部分上行sTTI分组对应的下行sTTI范围是32-33。
而后，将下行sTTI按照上行sTTI的分组数量进行分组并匹配：
第一部分：
第36,37sTTI分为一组，其与第7sTTI相对应；
第0,1sTTI分为一组，其与第8,9sTTI相对应；
第2,3sTTI分为一组，其与第10,11sTTI相对应；
第二部分：
第4,5,6sTTI分为一组，其与第14,15sTTI相对应；
第三部分：
第12,13sTTI分为一组，其与第18,19sTTI相对应；
第四部分：
第16,17sTTI分为一组，其与第27sTTI相对应；
第20,21sTTI分为一组，其与第28,29sTTI相对应；
第22,23sTTI分为一组，其与第30,31sTTI相对应；
第五部分：
第24,25,26sTTI分为一组，其与第34,35sTTI相对应；
第六部分：
第32,33sTTI分为一组，其与第38,39sTTI相对应。
同时，eNB在现有的DCI中(无论用于上行数据调度还是下行数据调度)增加1bit信息用于指示上行sTTI组内的sTTI。对于1个上行sTTI组包含2个sTTI，如指示包含8,9sTTI的上行组，eNB配置该bit为置位指示8sTTI， 复位指示9sTTI，反之亦可。
UE在接收到上行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI上传数据。
UE在接收到下行数据调度指示后，如果当前下行sTTI对应的上行sTTI组包含2个sTTI，则检索新增的bit位判断其在该sTTI组内的哪一个sTTI反馈应答数据。
4)7符号sTTI
图12为7符号长度的sTTI的无线帧结构2的分组示意图，一个无线帧包括20个sTTI。
在7符号长度的sTTI下，不再对上行和下行sTTI进行分组。
对于上行数据调度以及下行数据调度，下行sTTI与间隔大于或等于4个sTTI的第一个上行sTTI相对应，确定上行数据调度与下行数据反馈的时序。例如，在序号为0的下行sTTI发送上行数据调度指示，则可以在序号为4的上行sTTI发送上行数据；在序号为1的下行sTTI发送下行数据调度指示，则可以在序号为4的上行sTTI反馈应答数据；在序号为3的sTTI发送上行数据调度指示，则可以在序号为9的上行sTTI发送上行数据。
根据本发明实施例提供的一种时分双工通信的定时方法，通过确定是否需要对上/下行短传输时间间隔进行分组，针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
图13为本发明实施例提供的一种上下行数据调度方法的流程示意图，该方法包括以下步骤：
S201，当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用 于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应。
基站在某个下行sTTI分组中的一个或多个下行sTTI上向用户设备进行上行数据调度或下行数据调度时，基站在控制信令中增加一个指示信息，具体可以是在下行控制指示中增加1bit信息，将该控制信令发送给用户设备，该指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应。
具体地，若基站对上行sTTI和下行sTTI进行了分组，该指示信息用于指示进行上传数据和下行数据调度反馈的上行sTTI分组内的上行sTTI序号；若基站仅对上行sTTI进行了分组，该指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号。
S202，在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
用户设备在接收到该控制信令后，在指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度，从而使得在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
根据本发明实施例提供的一种上下行数据调度方法，由于基站已通过在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，从而在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为根据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
图14为本发明实施例提供的一种基站的结构示意图，该基站1000包括：
确定单元11，用于对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组。
这里，给定的无线帧结构是指图3所示的新的特殊子帧类型1下的两种无线帧结构，在图3的第一种无线帧结构中，无线帧结构1中的S子帧包含9个下行符号，1个GP，4个上行符号，S1子帧包含11个下行符号，1个GP，2个上行符号；在图3的第二种无线帧结构中，无线帧结构2中的S子帧包含9个下行符号，1个GP，4个上行符号，S1子帧包含7个下行符号，1个GP，6个上行符号。
在本实施例中，上行调度时序与下行应答时序以短传输时间间隔为粒度进行设计，即短传输时间间隔在这里的定义是一个时域上的最小调度单元。
由于一个无线帧中包含多个上行/下行sTTI，且针对两种无线帧结构及一个sTTI所包含的上/下符号的不同，我们考虑是否需要对上行sTTI和/或下行sTTI进行分组，以进行TDD新帧结构结合sTTI的机制下的定时设计。
具体地，确定单元11具体用于：对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组。
分组单元12，用于当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配。
指示单元13，用于在控制信令中增加第一指示信息，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应。
发送单元14，用于发送所述控制信令给用户设备。
对于给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组。
图15为对图14中的分组单元的进一步细化的结构示意图，所述分组单元12包括：
上行分部单元121，用于将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个上行sTTI分部，其中，a为大于或等于2的正整数；
下行分部单元122，用于对应每个上行sTTI分部，确定与所述上行sTTI分部对应的下行sTTI分部，所述下行sTTI分部的起始sTTI序号为m-k+1，所述下行sTTI分部的终止sTTI序号为n-k，其中，m为所述上行sTTI分部的前一个上行sTTI的序号，n为所述上行sTTI分部中的最后一个上行sTTI的序号，k为预设的最小调度间隙；
上行分组单元123，用于将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；
下行分组单元124，用于将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组；
分组匹配单元125，用于将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
在进行分组时，特定情况下，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为n-a。
在完成上行sTTI和下行sTTI进行分组和匹配后，当在某个下行sTTI分组中的一个或多个下行sTTI上向用户设备进行上行数据调度或下行数据调度时，基站在控制信令中增加一个第一指示信息，具体可以是在下行控制指示中增加1bit信息，将该控制信令发送给用户设备，第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应。用户设备在接收到该控制信令后，在指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
所述第一指示信息为1比特。例如，对于1个上行sTTI组包含2个sTTI，如指示包含13,14sTTI的上行组，eNB配置该bit为置位指示13sTTI，复位指示14sTTI，反之亦可。
分组单元12还用于当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙。
指示单元13还用于在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号。
对于给定的第一种无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组，即不再对下行sTTI进行分组。进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，k优选的取值范围为1～4，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号。所述第二指示信息为1比特。在进行上行数据调度时，进行数据上传的上行sTTI不能够包含下行符号或GP。
对于下行数据调度，下行sTTI与间隔大于或等于k个sTTI的第一个上行sTTI相对应，确定下行数据反馈的时序。在进行下行数据调度时，进行下行数据反馈的上行sTTI能够包含下行符号或GP。
指示单元13还用于当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
对于给定的第二种无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组。其定时设计是：在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
根据本发明实施例提供的一种基站，通过确定是否需要对上/下行短传输时间间隔进行分组，针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行 调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
图16为本发明实施例提供的一种用户设备的结构示意图，该用户设备2000包括：
接收单元21，用于当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应。
基站在某个下行sTTI分组中的一个或多个下行sTTI上向用户设备进行上行数据调度或下行数据调度时，基站在控制信令中增加一个指示信息，具体可以是在下行控制指示中增加1bit信息，将该控制信令发送给用户设备，该指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应。
具体地，若基站对上行sTTI和下行sTTI进行了分组，该指示信息用于指示进行上传数据和下行数据调度反馈的上行sTTI分组内的上行sTTI序号；若基站仅对上行sTTI进行了分组，该指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号。
发送单元22，用于在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
用户设备在接收到该控制信令后，在指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度，从而使得在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
根据本发明实施例提供的一种用户设备，由于基站已通过在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，从而在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构 与短传输时间间隔结合后的时序需求。
图17为本发明实施例提供的另一种基站的结构示意图，该基站3000包括：处理器31和发送器32；
所述处理器31用于对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
所述处理器31还用于当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，并在控制信令中增加第一指示信息，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
所述处理器31还用于当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
所述发送器32用于发送所述控制信令给用户设备；
所述处理器31还用于当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
在一种可能的实现方式中，所述处理器31具体用于：
对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组；
其中，所述给定的无线帧结构包括所述第一无线帧结构和所述第二无线帧结构。
在另一种可能的实现方式中，所述处理器31具体用于：
将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个上行sTTI分部，其中，a为大于或等于2的正整数；
对应每个上行sTTI分部，确定与所述上行sTTI分部对应的下行sTTI分部，所述下行sTTI分部的起始sTTI序号为m-k+1，所述下行sTTI分部的终止sTTI序号为n-k，其中，m为所述上行sTTI分部的前一个上行sTTI的序号，n为所述上行sTTI分部中的最后一个上行sTTI的序号，k为预设的最小调度间隙；
将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；
将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组，并将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
在又一种可能的实现方式中，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，
若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为n-a。
在又一种可能的实现方式中，所述第一指示信息或所述第二指示信息为1比特。
根据本发明实施例提供的一种基站，通过确定是否需要对上/下行短传输时间间隔进行分组，针对是否需要分组的不同的情况，确定是否需要在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，或在不需要在控制信令中增加额外的指示信息，而在根据默认规则确定的上行短传输时间间隔上上传数据或反馈下行数据调度，使在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
图18为本发明实施例提供的另一种用户设备的结构示意图，该用户设备4000包括：接收器41和发送器42；
所述接收器41用于当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
所述发送器42用于在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
根据本发明实施例提供的一种用户设备，由于基站已通过在控制信令中增加额外的指示信息来指示用户设备上传数据或反馈下行数据调度的上行短传输时间间隔组内的上行短传输时间间隔序号，从而在任一下行sTTI上进行上/下行数据调度，其上行调度时序和/或下行应答时序都能够满足TDD新帧结构与短传输时间间隔结合后的时序需求。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本发明实施例装置中的单元可以根据实际需要进行合并、划分和删减。本领域的技术人员可以将本说明书中描述的不同实施例以及不同实施例的特征进行结合或组合。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括随机存取存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码 并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(Digital Subscriber Line，DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本发明所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本发明技术方案的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (18)

  1. 一种时分双工通信的定时方法，其特征在于，所述方法包括：
    对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
    当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，并在控制信令中增加第一指示信息，发送所述控制信令给用户设备，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
    当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
    当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
  2. 如权利要求1所述的方法，其特征在于，所述对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组，包括：
    对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
    对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
    对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组；
    其中，所述给定的无线帧结构包括所述第一无线帧结构和所述第二无线帧结构。
  3. 如权利要求1或2所述的方法，其特征在于，所述当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，包括：
    将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个上行sTTI分部，其中，a为大于或等于2的正整数；
    对应每个上行sTTI分部，确定与所述上行sTTI分部对应的下行sTTI分部，所述下行sTTI分部的起始sTTI序号为m-k+1，所述下行sTTI分部的终止sTTI序号为n-k，其中，m为所述上行sTTI分部的前一个上行sTTI的序号，n为所述上行sTTI分部中的最后一个上行sTTI的序号；
    将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；
    将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组，并将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
  4. 如权利要求3所述的方法，其特征在于，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，
    若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为n-a。
  5. 如权利要求1-4任意一项所述的方法，其特征在于，所述第一指示信息或所述第二指示信息为1比特。
  6. 一种上下行数据调度方法，其特征在于，所述方法包括：
    当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
    在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
  7. 一种基站，其特征在于，所述基站包括：
    确定单元，用于对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
    分组单元，用于当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配；
    指示单元，用于在控制信令中增加第一指示信息，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
    所述分组单元还用于当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙；
    所述指示单元还用于在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
    发送单元，用于发送所述控制信令给用户设备；
    所述指示单元还用于当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
  8. 如权利要求7所述的基站，其特征在于，所述确定单元具体用于：
    对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
    对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
    对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组；
    其中，所述给定的无线帧结构包括所述第一无线帧结构和所述第二无线帧结构。
  9. 如权利要求7或8所述的基站，其特征在于，所述分组单元包括：
    上行分部单元，用于将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个上行sTTI分部，其中，a为大于或等于2的正整数；
    下行分部单元，用于对应每个上行sTTI分部，确定与所述上行sTTI分部对应的下行sTTI分部，所述下行sTTI分部的起始sTTI序号为m-k+1，所述下行sTTI分部的终止sTTI序号为n-k，其中，m为所述上行sTTI分部的前一个上行sTTI的序号，n为所述上行sTTI分部中的最后一个上行sTTI的序号；
    上行分组单元，用于将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；
    下行分组单元，用于将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组；
    分组匹配单元，用于将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
  10. 如权利要求9所述的基站，其特征在于，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，
    若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为n-a。
  11. 如权利要求7-10任意一项所述的基站，其特征在于，所述第一指示信息或所述第二指示信息为1比特。
  12. 一种用户设备，其特征在于，所述用户设备包括：
    接收单元，用于当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
    发送单元，用于在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
  13. 一种基站，其特征在于，所述基站包括：处理器和发送器；
    所述处理器用于对于给定的无线帧结构，确定是否需要对上行短传输时间间隔sTTI和/或下行sTTI进行分组；
    所述处理器还用于当需要对上行sTTI和下行sTTI进行分组时，将上行sTTI和下行sTTI进行分组和匹配，并在控制信令中增加第一指示信息，所述第一指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与进行上行数据调度或下行数据调度的下行sTTI分组对应；
    所述处理器还用于当仅需要对上行sTTI进行分组时，将上行sTTI分为一组，进行上行数据调度时，所有与上行sTTI分组内的上行sTTI间隔大于或等于k个sTTI的下行sTTI均可用于发送上行数据调度指示，k为预设的最小调度间隙，并在所述控制信令中增加第二指示信息，所述第二指示信息用于指示上传数据的上行sTTI分组内的上行sTTI序号；
    所述发送器用于发送所述控制信令给用户设备；
    所述处理器还用于当不需要对上行sTTI或下行sTTI进行分组时，指示在与发送上行或下行数据调度指示的下行sTTI间隔大于或等于k个sTTI的第一个上行sTTI上传数据或反馈下行数据调度。
  14. 如权利要求13所述的基站，其特征在于，所述处理器具体用于：
    对于所述给定的无线帧结构，若sTTI包括1个符号，2个符号，3个或4个符号，则确定需要对上行sTTI和下行sTTI进行分组；
    对于第一无线帧结构，若sTTI包括7个符号，则确定仅需要对上行sTTI进行分组；
    对于第二无线帧结构，若sTTI包括7个符号，则确定不需要对上行sTTI或下行sTTI进行分组；
    其中，所述给定的无线帧结构包括所述第一无线帧结构和所述第二无线帧结构。
  15. 如权利要求13或14所述的基站，其特征在于，所述处理器具体用于：
    将无线帧中数量为a个连续的上行sTTI划分为一个分部，得到至少一个 上行sTTI分部，其中，a为大于或等于2的正整数；
    对应每个上行sTTI分部，确定与所述上行sTTI分部对应的下行sTTI分部，所述下行sTTI分部的起始sTTI序号为m-k+1，所述下行sTTI分部的终止sTTI序号为n-k，其中，m为所述上行sTTI分部的前一个上行sTTI的序号，n为所述上行sTTI分部中的最后一个上行sTTI的序号；
    将每个上行sTTI分部进行分组，得到至少一个上行sTTI分组；
    将与所述上行sTTI分部对应的下行sTTI分部进行分组，得到至少一个下行sTTI分组，并将所述至少一个下行sTTI分组与所述至少一个上行sTTI分组匹配。
  16. 如权利要求15所述的基站，其特征在于，若序号为m-k+1的sTTI为上行sTTI，则下行sTTI分部的起始sTTI序号为m-k序号后的第一个下行sTTI；和/或，
    若上行sTTI分部的数量a大于k，则下行sTTI分部的终止sTTI序号为n-a。
  17. 如权利要求13-16任意一项所述的基站，其特征在于，所述第一指示信息或所述第二指示信息为1比特。
  18. 一种用户设备，其特征在于，所述用户设备包括：接收器和发送器；
    所述接收器用于当接收到下行sTTI分组上发送的上行数据调度或下行数据调度的指示时，接收控制信令，所述控制信令中包括增加的指示信息，所述指示信息用于指示进行上传数据或下行数据调度反馈的上行sTTI分组内的上行sTTI序号，所述上行sTTI分组与所述下行sTTI分组对应；
    所述发送器用于在所述指示信息所指示的所述上行sTTI分组内的上行sTTI序号对应的上行sTTI上上传数据或反馈下行数据调度。
PCT/CN2016/081684 2016-05-11 2016-05-11 一种时分双工通信的定时方法、基站及用户设备 WO2017193300A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102740462A (zh) * 2011-04-11 2012-10-17 中兴通讯股份有限公司 一种处理增强型专用传输信道的方法和***
WO2014060010A1 (en) * 2012-10-15 2014-04-24 Nokia Solutions And Networks Oy Flexible frame structure
WO2016040290A1 (en) * 2014-09-08 2016-03-17 Interdigital Patent Holdings, Inc. Systems and methods of operating with different transmission time interval (tti) durations
WO2016064039A1 (ko) * 2014-10-21 2016-04-28 엘지전자(주) 저 지연을 지원하는 무선 통신 시스템에서 데이터 송수신 방법 및 이를 위한 장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100534027C (zh) * 2005-08-17 2009-08-26 大唐移动通信设备有限公司 时分双工***传输方法
EP2929745A4 (en) 2013-01-16 2016-09-21 Nec China Co Ltd METHOD AND APPARATUS FOR PERFORMING TTI GROUPING IN A TDD SYSTEM
US10342012B2 (en) * 2015-03-15 2019-07-02 Qualcomm Incorporated Self-contained time division duplex (TDD) subframe structure
US10367630B2 (en) * 2015-06-11 2019-07-30 Lg Electronics Inc. Method and device for performing communication using plurality of subframes in TDD-based wireless communication system
DE112015006893T5 (de) * 2015-09-10 2018-05-24 Intel IP Corporation Evolved Node-B (eNB), Nutzerausrüstung (UE) und Verfahren zur flexiblen Duplex-Kommunikation
US10630436B2 (en) * 2016-03-10 2020-04-21 Telefonaktiebolaget Lm Ericsson (Publ) Short transmission time intervals in time division duplex downlink and uplink subframes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102740462A (zh) * 2011-04-11 2012-10-17 中兴通讯股份有限公司 一种处理增强型专用传输信道的方法和***
WO2014060010A1 (en) * 2012-10-15 2014-04-24 Nokia Solutions And Networks Oy Flexible frame structure
WO2016040290A1 (en) * 2014-09-08 2016-03-17 Interdigital Patent Holdings, Inc. Systems and methods of operating with different transmission time interval (tti) durations
WO2016064039A1 (ko) * 2014-10-21 2016-04-28 엘지전자(주) 저 지연을 지원하는 무선 통신 시스템에서 데이터 송수신 방법 및 이를 위한 장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3444978A4 *

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