WO2020052673A1 - 一种非授权频段上行共享信道调度方法、移动终端和网络设备 - Google Patents

一种非授权频段上行共享信道调度方法、移动终端和网络设备 Download PDF

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WO2020052673A1
WO2020052673A1 PCT/CN2019/105803 CN2019105803W WO2020052673A1 WO 2020052673 A1 WO2020052673 A1 WO 2020052673A1 CN 2019105803 W CN2019105803 W CN 2019105803W WO 2020052673 A1 WO2020052673 A1 WO 2020052673A1
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data
symbols
data block
uplink
symbol
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PCT/CN2019/105803
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English (en)
French (fr)
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刘晓峰
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中国信息通信研究院
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of mobile communication technologies, and in particular, to an uplink shared channel scheduling method, and a mobile terminal and a network device using the same.
  • LBT listen-before-talk
  • the uncertain transmission time point caused by LBT makes it difficult to send uplink data.
  • Uplink data transmission often needs to be performed according to downlink scheduling.
  • the downlink control information indication (DCI) needs to give the time and frequency domain locations for the specific transmission of the uplink data channel.
  • the DCI gives a specific time domain location of the physical uplink shared channel (PUSCH)
  • PUSCH physical uplink shared channel
  • the location is likely to be unable to send data due to LBT, resulting in an invalid indication.
  • the terminal is allowed to postpone the time point of initial transmission, since the terminal needs to prepare data transmission according to the size of the resources provided by the base station, the length of time available in this time slot may be shorter than the time length scheduled by the base station due to LBT.
  • the terminal has to abandon the current time slot transmission and wait for the next uplink transmission time point, thereby causing waste of uplink resources.
  • the base station it is difficult to accurately predict the length of time available in the uplink transmission time slot for which LBT is required.
  • the terminal can transmit after the fixed length according to the fixed length.
  • the terminal can transmit after the fixed length according to the fixed length.
  • This blank will also have an impact on subsequent time slot data transmission.
  • the existence of a blank makes both the terminal and the system have to perform the LBT process to continue sending data. This process makes the data transmission discontinuous, further causing waste of system resources.
  • This application proposes a method, a mobile terminal, and a network device for scheduling an uplink shared channel in an unlicensed band, which aims to solve the problem of system resource waste caused by LBT.
  • the embodiment of the application provides a method for scheduling an uplink shared channel in an unlicensed band, which is used for a mobile terminal and includes at least one time slot of a physical uplink shared channel including an LBT occupation symbol, a first data block occupation symbol, and a second data block occupation symbol.
  • the LBT occupied symbols are used for channel monitoring to confirm the number of symbols that can be used for data transmission;
  • the first data block occupied symbols are used to transmit fixed-length uplink data, including A continuous symbols;
  • the The second data block occupies the symbol, and is used to transmit the part whose number of uplink data symbols is greater than A, including B continuous symbols;
  • a and B are integers in the range of 0 to 14, and the value of B is the end of the first data block.
  • the number of symbols between the end of a slot is used for a mobile terminal and includes at least one time slot of a physical uplink shared channel including an LBT occupation symbol, a first data block occupation symbol, and a second data block occupation symbol.
  • the value of A is indicated by the information in the downlink control signaling, or the value of A is configured by high-level signaling, or the value of A is preset in the mobile terminal and the base station.
  • the first A symbols in the uplink data are sent in the first data block, and subsequent B symbol data transmissions are prepared within the time window duration range. After the symbol data is sent, the uplink data is sent in a second data block of length B.
  • the present application also provides a mobile terminal used in the method described in any one of the embodiments of the present application, including a terminal data unit and a terminal control unit; the terminal data unit is used to send the uplink data; and the terminal control unit For determining the first data block occupation symbol and the second data block occupation symbol.
  • the present application further provides a network device used in the method according to any one of the embodiments of the present application, including a network data unit and a network control unit; the network data unit is configured to receive the uplink data; and the network control unit , Used to send downlink control signaling, including information indicating the value of A.
  • a network device used in the method according to any one of the embodiments of the present application, including a network data unit and a network control unit; the network data unit is configured to receive the uplink data; and the network control unit , Used to send downlink control signaling, including information indicating the value of A.
  • the method and device for sending two consecutive data in a single slot of a PUSCH in the present invention can well match the transmission of an uncertain length of an uplink slot after the introduction of LBT.
  • LBT when the length of the available uplink PUSCH resource is not less than d, the uplink resource can be occupied by adjusting the length of the second data block. While making good use of the uplink resources, it can also avoid the extra LBT process caused by the interruption of unnecessary data transmission.
  • this serial data transmission mode allows the terminal to prepare for the transmission of the second data block when the first data block is transmitted. This also avoids that the terminal prepares multiple uplink transmission versions for matching different numbers of possible uplink PUSCH symbols, thereby reducing the pressure on the terminal to prepare for data transmission.
  • FIG. 1 is a schematic diagram of communication between a network device and a terminal device
  • FIG. 2 is a schematic diagram of positions of available uplink symbols in a time slot
  • FIG. 3 is a schematic flowchart of an embodiment of a method according to the present invention.
  • FIG. 4 is a schematic flowchart of another embodiment of a method according to the present invention.
  • FIG. 1 is a schematic diagram of communication between a network device and a terminal device.
  • a network device can send and receive data to multiple terminal devices at the same time.
  • the network equipment includes a network data unit and a network control unit.
  • the terminal equipment includes a terminal data unit and a terminal control unit.
  • the network data unit and the terminal data unit send data through a downlink data sharing channel (PDSCH) and an uplink data sharing channel (PUSCH).
  • PDSCH downlink data sharing channel
  • PUSCH uplink data sharing channel
  • the network control unit and the terminal control unit exchange control information through a downlink control channel (PDCCH) and an uplink control channel (PUCCH).
  • PDSCH downlink data sharing channel
  • PUCCH uplink control channel
  • the PDCCH sends downlink control information (DCI), and performs specific transmission format related content of PDSCH, PUSCH, and PUCCH.
  • DCI downlink control information
  • the terminal control unit feedbacks whether the data has correctly received the ACK / NACK information or sends the terminal data to the network according to the control information sent by the network control unit and the terminal data unit data reception situation.
  • Specific information such as ACK / NACK is carried by the PUCCH (uplink control channel).
  • Figure 2 is a schematic diagram of the positions of available uplink symbols in a time slot.
  • the embodiment of the application provides a method for scheduling an uplink shared channel in an unlicensed band, which is used for a mobile terminal and includes at least one time slot of a physical uplink shared channel including an LBT occupation symbol, a first data block occupation symbol, and a second data block occupation symbol
  • the LBT occupied symbol is used for channel monitoring to confirm the number of symbols that can be used for data transmission;
  • the first data block occupied symbol is used to transmit fixed-length uplink data, including A continuous symbols, from the LBT process
  • the mobile terminal confirms that it can be used as the symbol for uplink data transmission;
  • the second data block occupies the symbol, and is used to transmit the part of the uplink data symbol number greater than A, including B continuous symbols;
  • a and B are in the range of 0-14 An integer of, where the value of B is the number of symbols between the end of the first data block and the end of the time slot.
  • the present invention in order to send on unlicensed PUSCH, the present invention is improved on the basis of the prior art, and supports PUSCH to send two consecutive data transmissions in one time slot, that is to say, one uplink time slot can be used to send uplink data.
  • the part is divided into three parts. , The LBT occupies a symbol portion, the PUSCH first data block occupies a symbol portion, and the PUSCH second data block occupies a symbol portion.
  • the specific scheduling content includes, but is not limited to, the time domain length of the data block. In special cases, the values of A and B are 0, respectively, indicating that there is no first data block and no second data block is sent.
  • the value of A is indicated by information in the downlink control signaling, or the value of A is configured by high-level signaling. That is, the length of A is given explicitly.
  • Direct indication in the DCI information such as a separate bit indication in the DCI or a joint indication with other information, or direct configuration by high-level signaling (such as RRC signaling).
  • the length of A is given implicitly, meaning that the length of A is agreed between the terminal and the base station.
  • the value of A is preset in the mobile terminal and the base station.
  • the length of A is preset according to the PUSCH using a subcarrier interval corresponding value.
  • the length of B is the number of all symbols between the end of the first data block and the end of the time slot. It should be noted that the specific value of B is not explicitly indicated in the scheduling information, but is obtained through calculation.
  • FIG. 3 is a schematic flowchart of a method embodiment of the present invention. It includes the following steps:
  • Step 100 The terminal device obtains the value of A by receiving DCI, etc .;
  • Step 200 The terminal device performs an LBT process to determine the number C of symbols that can be used for uplink data transmission in the time slot;
  • the "preparing subsequent B symbol data transmissions" includes at least a modulation and coding process and a process of mapping to physical resources.
  • Step 400 The terminal device continues to send B symbol data as subsequent data blocks in the subsequent timeslots.
  • the second data block is not filled with uplink data, and the idle part can be filled with default data (for example, 0), and can also be used for This application does not specifically limit the transmission of other data.
  • the second data block is filled with uplink data, and the insufficient part can occupy other physical resources for transmission (such as other time slots). This application does not make specific limited.
  • FIG. 4 is a schematic flowchart of another embodiment of a method according to the present invention.
  • a time window is set, and the duration of the time window is d (represented by the number of symbols).
  • a time window d is set for the terminal to prepare for physical uplink shared channel (PUSCH) data transmission.
  • the length of d can vary with the subcarrier interval. For example, if the subcarrier interval is 15kHz, the length of d is 1 symbol. Then, when the subcarrier interval is 30 or 60kHz, the length of d may increase to 2 symbols.
  • the value of d may be, for example, an agreed value or a value dynamically determined by the terminal. Specifically, it includes:
  • Agreed value For example, the value of d is specified in a technical standard or specification.
  • the value of d can be given, for example, as an absolute value of time in ms or us, or a relative time length in symbols.
  • the value dynamically determined by the terminal When the terminal accesses the system, it reports directly as one of the terminal's capabilities.
  • the reported information includes several bits, and each state identifies a value of d.
  • Step 100 The terminal device obtains the value of A according to a method such as receiving DCI;
  • Step 200 The terminal device performs an LBT process to determine the number C of symbols that can be used for uplink data transmission in the time slot;
  • Step 500 If the number of symbols included in the uplink data that the mobile terminal needs to send is ⁇ A, send the uplink data in the first data block.
  • the "preparing the subsequent B symbol data transmission" includes at least a modulation and coding process and a process of mapping to physical resources.
  • the HARQ process numbers corresponding to the first data block and the second data block are different.
  • the two data blocks use different HARQ process numbers, and other sending parameters are the same.
  • the purpose of using different numbers of uplink HARQ processes is to perform HARQ control separately.
  • the downlink control signaling includes information indicating that the uplink time slot includes two data blocks, and or, in the high-level signaling, includes information indicating that the uplink time slot includes two data blocks. .
  • DCI Downlink resource indicator
  • RRC Radio Resource Control
  • the first data block and the second data block both use the symbol duration in the uplink time slot except for the LBT process.
  • the second data block is not sent.
  • two data block scheduling if the length of the first data block is greater than the number of uplink transmission symbols available in the current time slot after the LBT process, then no PUSCH data transmission is performed in the current time slot.
  • the present application also provides a mobile terminal used in the method described in any one of the embodiments of the present application, including a terminal data unit and a terminal control unit; the terminal data unit is used to send the uplink data; and the terminal control unit For determining the first data block occupation symbol and the second data block occupation symbol.
  • the present application further provides a network device used in the method according to any one of the embodiments of the present application, including a network data unit and a network control unit; the network data unit is configured to receive the uplink data; and the network control unit , Used to send downlink control signaling, including information indicating the value of A.
  • a network device used in the method according to any one of the embodiments of the present application, including a network data unit and a network control unit; the network data unit is configured to receive the uplink data; and the network control unit , Used to send downlink control signaling, including information indicating the value of A.
  • the network control unit is further configured to send information indicating that the uplink time slot contains two data blocks; as a further optimized embodiment of the terminal device of the present application, the terminal control unit, It is also used to receive information indicating that the uplink time slot contains two data blocks.
  • the present invention can be implemented by means of software plus a necessary universal hardware platform, and of course, also by hardware, but in many cases the former is a better implementation the way.
  • the technical solution of the present invention in essence, or a part that contributes to the existing technology, can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium and includes several instructions for making a A terminal device (which may be a mobile phone, a personal computer, a server, or a network device) executes the methods described in the embodiments of the present invention.

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Abstract

本申请公开了一种非授权频段上行共享信道调度方法、移动终端和网络设备。所述方法,在物理上行共享信道的至少一个时隙内,包含LBT占用符号、第一数据块占用符号、第二数据块占用符号;所述LBT占用符号,用于进行信道监听,确认可以用于数据发送符号数;所述第一数据块占用符号,用于传送固定长度的上行数据,包含A个持续的符号;所述第二数据块占用符号,用于传送上行数据符号数大于A的部分,包含B个持续的符号;其中B的数值为所述第一数据块结束到时隙结束之间的符号数。本申请还提出应用所述方法的移动终端、网络设备。本申请旨在解决LBT引起的系统资源浪费问题。

Description

一种非授权频段上行共享信道调度方法、移动终端和网络设备
本申请要求于2018年9月14日提交中国国家知识产权局、申请号为201811071736.2、发明名称为“一种非授权频段上行共享信道调度方法、移动终端和网络设备”的中国专利申请的优先权,该在先申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信技术领域,尤其涉及一种上行共享信道调度方法,及应用其的移动终端和网络设备。
背景技术
5G第一版标准完成后,5G将向不同的领域扩展。一个重要方向是非授权频段的使用。相对于授权频段,非授权频段需要考虑不同系统间的共存,典型的如Wifi系统,基于LTE的LAA系统等。为了使多种系统可以和谐共存,各国监管机构对非授权频段的使用采用强制的先听后发技术(listen before talk,缩写LBT),即只有当侦听到目前信道没有被占用时才能进行数据发送。这种机制带来的问题是有些数据不能保证在确定的位置发送。
LBT带来的发送时间点不确定使上行数据发送变得困难。上行的数据发送往往需要根据下行的调度进行。在目前5G新空口规范中,下行控制信息指示(DCI)需要给出上行数据信道具体发送的时域及频域位置。当DCI给出物理上行共享信道(PUSCH)的具体时域位置时,由于LBT的原因,该位置很可能不能发送数据,从而造成无效的指示。即使允许终端可以推迟初始发送的时间点,但是由于终端需要按照基站提供的资源大小准备数据发送,受LBT影响,该时隙内的可用时间长度也可能会小于基站调度的时间长度。在这种情况下,终端不得不放弃当前时隙发送,等待下一个上行发送时间点,从而造成上行资源浪费。另一方面,对于基站,也很难准确预测需要进行LBT的上行 发送时隙内可用的时间长度,当只调度一个固定的上行发送时间长度时,终端按照该固定长度在LBT结束后可以发送的时间点发送,那么在该发送时隙结尾处难免会留下若干符号的空白。这个空白给后续的时隙数据发送也将带来影响。空白的存在使得无论终端还是系统要继续发送数据不得不再进行LBT的过程。这个过程使得数据传输不连续,进一步造成系统资源浪费。
发明内容
本申请提出一种非授权频段上行共享信道调度方法、移动终端和网络设备,旨在解决LBT引起的系统资源浪费问题。
申请实施例提供一种非授权频段上行共享信道调度方法,用于移动终端,在物理上行共享信道的至少一个时隙内,包含LBT占用符号、第一数据块占用符号、第二数据块占用符号;所述LBT占用符号,用于进行信道监听,确认可以用于数据发送的符号数;所述第一数据块占用符号,用于传送固定长度的上行数据,包含A个持续的符号;所述第二数据块占用符号,用于传送上行数据符号数大于A的部分,包含B个持续的符号;A、B为0~14范围内的整数,B的数值为所述第一数据块结束到时隙结束之间的符号数。
优选地,A的值由下行控制信令中的信息指示,或者A的值由高层信令配置,或者A的值是在移动终端和基站中预设的。
本发明方法进一步优化的实施例还包含以下步骤:
设置时间窗,所述时间窗的时长为d(用符号数表示);
如果所述移动终端需要发送的上行数据包含的符号数≤A,则在第一数据块发送上行数据;
如果所述移动终端需要发送的上行数据包含的符号数>A,则在第一数据块发送上行数据中的前A个符号、在时间窗时长范围内准备后续B个符号数据发送,在A个符号数据发送结束后,在长度为B的第二数据块发送上行数据。
进一步优选地,A<d时,只发送第一数据块。
本申请还提供一种移动终端,用于本申请任意一项实施例所述方法,包含终端数据单元和终端控制单元;所述终端数据单元,用于发送所述上行数据;所述终端控制单元,用于确定所述第一数据块占用符号和所述第二数据块占用符号。
本申请还提供一种网络设备,用于本申请任意一项实施例所述方法,包含网络数据单元和网络控制单元;所述网络数据单元,用于接收所述上行数据;所述网络控制单元,用于发送下行控制信令,包含指示A数值的信息。
本申请实施例采用的上述至少一个技术方案能够达到以下有益效果:
本发明提出的PUSCH单时隙两次连续数据发送的方法和装置,通过灵活分配两数据块时长,可以很好的匹配LBT引入后上行时隙的不确定长度发送。经过LBT后,当可用的上行PUSCH资源长度不小于d时,均可通过调整第二个数据块时间长度来占满上行资源。在很好利用上行资源同时,还能避免不必要的数据发送间断带来的额外LBT过程。此外,这种串行的数据发送方式,允许终端在第一个数据块发送时,进行第二个数据块的发送准备。这也避免了终端为匹配可能的不同上行PUSCH符号数而准备多个上行发送版本,从而减小了终端进行数据发送准备的压力。
附图说明
图1为网络设备和终端设备通信示意图;
图2为一个时隙内可用上行符号位置示意图;
图3为本发明方法实施例流程示意图;
图4为本发明方法另一实施例流程示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然,所描述的实施例仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施 例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
以下结合附图,详细说明本申请各实施例提供的技术方案。
图1为网络设备和终端设备通信示意图。考虑一个由网络设备及终端设备组成的通信系统,一个网络设备可以同时给多个终端设备进行数据发送与接收。网络设备包括网络数据单元和网络控制单元。终端设备包括终端数据单元和终端控制单元。网络数据单元与终端数据单元通过下行数据共享信道(PDSCH)和上行数据共享信道(PUSCH)发送数据。而网络控制单元与终端控制单元通过下行控制信道(PDCCH)和上行控制信道(PUCCH)进行控制信息交换。其中PDCCH发送下行控制信息(DCI),进行PDSCH、PUSCH和PUCCH的具体发送格式相关内容。当终端数据单元数据接收完毕后,终端控制单元根据网络控制单元发送的控制信息和终端数据单元数据接收情况向网络设备反馈数据是否正确接收ACK/NACK信息或者进行终端向网络的数据发送。具体ACK/NACK等信息由PUCCH(上行控制信道)进行承载。
图2为一个时隙内可用上行符号位置示意图。申请实施例提供一种非授权频段上行共享信道调度方法,用于移动终端,在物理上行共享信道的至少一个时隙内,包含LBT占用符号、第一数据块占用符号、第二数据块占用符号;所述LBT占用符号,用于进行信道监听,确认可以用于数据发送符号数;所述第一数据块占用符号,用于传送固定长度的上行数据,包含A个持续的符号,从LBT过程中移动终端确认可以用作上行数据发送的符号起;所述第二数据块占用符号,用于传送上行数据符号数大于A的部分,包含B个持续的符号;A、B为0~14范围内的整数,其中B的数值为所述第一数据块结束到时隙结束之间的符号数。
例如,在当前的5G新空口对于PUSCH的DCI调度方案中,包含上行PUSCH一次数据发送的发送提供开始时间点,持续时间长度,频域位置等信 息。为在非授权PUSCH发送,本发明在现有技术基础上改进,支持PUSCH在一个时隙内连续发送两次数据发送,也就是说,一个上行时隙内可用于发送上行数据部分分为三部分,LBT占用符号部分,PUSCH第一数据块占用符号部分和PUSCH第二数据块占用符号部分。
对当前时隙的上行部分进行调度的下行控制信道(PDCCH)的下行控制信息(DCI)对第一数据块符号部分和第二数据块部分进行调度。具体调度内容包括但不仅限于数据块时域长度。特殊情况下,A、B取值为0分别代表没有第一数据块、没有第二数据块发送。
优选地,A的值由下行控制信令中的信息指示,或者A的值由高层信令配置。也就是说,A的长度显性给出。在DCI信息内直接指示,如在DCI有单独比特指示或者和其它信息联合指示,或者高层信令(如RRC信令)直接配置。
可选择地,A的长度隐性给出,指A的长度由终端和基站间约定。也就是说,A的值是在移动终端和基站中预设的,例如,A的长度根据PUSCH采用子载波间隔预设对应的数值。
B的长度为第一数据块结束后到时隙结束之间的所有符号数。需要说明的是,B的具体数值不在调度信息中显性指示,而是通过计算得出。计算方式为一个时隙内包含符号数减去第一个信息块结束的符号数,假设一个时隙内符号编号从1开始。例如,一个时隙包含14符号,第一个数据块结束时间为第10个符号,那么B的长度为14-10=4。
图3为本发明方法实施例流程示意图。具体包含以下步骤:
步骤100、终端设备通过接收DCI等方式获得A的数值;
步骤200、终端设备进行LBT过程,确定时隙中的可用做上行数据发送符号个数C;
步骤300、终端将可用作上行数据发送符号中前A个符号作为第一数据块 发送;同时准备后续B个符号数据发送,其中B=C-A;
需要说明的是,步骤300中,所述“准备后续B个符号数据发送”,至少包含调制编码过程、向物理资源映射的过程。
步骤400、终端设备在所述时隙内后续符号继续发送B个符号数据,作为第二数据块。
需要说明的是,当需要发送的上行数据符号数大于A,且小于A+B时,第二数据块未被上行数据填满,空闲部分可以用缺省数据填充(例如0),也可用于传送其他数据,本申请不做具体限定。
还需要说明的是,当需要发送的上行数据符号数大于A+B时,第二数据块被上行数据填满,不足部分可以占用其他物理资源传送(例如其他时隙),本申请不做具体限定。
图4为本发明方法另一实施例流程示意图。
设置时间窗,所述时间窗的时长为d(用符号数表示)。
例如,设置时间窗d,用于终端准备物理上行共享信道(PUSCH)数据发送。d的长度随子载波间隔变化可以有所不同,如假设子载波间隔为15kHz时,d的长度为1符号,那么在子载波间隔在30或者60kHz时,d的长度可能增加为2符号。
d的取值方式,例如可以是,约定的数值或终端动态确定的数值。具体地,包括:
约定的数值:例如在技术标准或规范中规定d的数值。d的数值,例如可以ms或us为单位的时间绝对值给出,也可以符号为单位的相对时间长度给出。
终端动态确定的数值:终端在接入系统时直接作为终端一个能力进行上报,上报的信息包括若干比特,每个状态标识一个d的数值。
采用时间窗的实施例,具体包含以下步骤:
步骤100、终端设备根据接收DCI等方式获得A的数值;
步骤200、终端设备进行LBT过程,确定时隙中的可用做上行数据发送符号个数C;
步骤500、如果所述移动终端需要发送的上行数据包含的符号数≤A,则在第一数据块发送上行数据;
步骤600、如果所述移动终端需要发送的上行数据包含的符号数>A,则在第一数据块发送上行数据中的前A个符号,并在时间窗时长范围内准备后续B个符号数据发送(其中B=C-A),在A个符号数据发送结束后,发送长度为B的第二数据块;也就是说,第二数据段包含第A个符号以后的上行数据(例如第A+1至第A+B个符号范围的上行数据)。
需要说明的是,步骤600中,所述“准备后续B个符号数据发送”,至少包含调制编码过程、向物理资源映射的过程。
进一步优选地,A<d时,只发送第一数据块。
作为本申请进一步优化的实施例,如果一个时隙内PUSCH采用两次数据块发送,第一数据块和第二数据块对应的HARQ进程号不同。两次数据块采用不同HARQ进程号,其它发送参数相同。采用不同的上行HARQ进程数的目的是分别进行HARQ控制。
作为本申请进一步优化的实施例,在下行控制信令中,包含指示上行时隙包含两个数据块的信息,和或,在高层信令中,包含指示上行时隙包含两个数据块的信息。
例如,一次PUSCH调度在一个时隙内是否采用两个数据块的发送结构有两种指示方式:一、DCI中直接指示。在DCI中直接增加1个比特的指示,专门表征需要进行LBT的上行时隙是否采用两个数据块发送。二、由高层信令,如RRC信令,直接指示。在高层信令中增加1比特直接指示在进行LBT的上行时隙是否采用两个数据块发送。
一般地,第一数据块和第二数据块均使用上行时隙中除用于LBT过程之 外的符号时长。但是,当采用两数据块调度时,如果第一个数据块长度等于LBT过程结束后当前时隙可用上行发送符号数,那么第二个数据块不进行发送。当采用两数据块调度时,如果第一个数据块长度大于LBT过程后当前时隙可用上行发送符号数,那么当前时隙不进行PUSCH数据发送。
本申请还提供一种移动终端,用于本申请任意一项实施例所述方法,包含终端数据单元和终端控制单元;所述终端数据单元,用于发送所述上行数据;所述终端控制单元,用于确定所述第一数据块占用符号和所述第二数据块占用符号。
本申请还提供一种网络设备,用于本申请任意一项实施例所述方法,包含网络数据单元和网络控制单元;所述网络数据单元,用于接收所述上行数据;所述网络控制单元,用于发送下行控制信令,包含指示A数值的信息。
作为本申请网络设备进一步优化的实施例,所述网络控制单元,还用于发送指示上行时隙包含两个数据块的信息;作为本申请终端设备进一步优化的实施例,所述终端控制单元,还用于接收指示上行时隙包含两个数据块的信息。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台终端设备(可以是手机,个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视本发明的保护范围。

Claims (24)

  1. 一种非授权频段上行共享信道调度方法,用于移动终端,其特征在于
    在物理上行共享信道的至少一个时隙内,包含LBT占用符号、第一数据块占用符号、第二数据块占用符号;
    所述LBT占用符号,用于进行信道监听,确认可以用于上行数据发送符号数;
    所述第一数据块占用符号,用于传送固定长度的上行数据,包含A个持续的符号;
    所述第二数据块占用符号,用于传送上行数据符号数大于A的部分,包含B个持续的符号;
    A、B为0~14范围内的整数,其中B的数值为所述第一数据块结束到时隙结束之间的符号数。
  2. 如权利要求1所述方法,其特征在于,
    A的值由下行控制信令中的信息指示。
  3. 如权利要求1所述方法,其特征在于,
    A的值由高层信令配置。
  4. 如权利要求1所述方法,其特征在于,
    A的值是在移动终端和基站中预设的。
  5. 如权利要求1~4任意一项所述方法,其特征在于,还包含以下步骤:
    设置时间窗,所述时间窗的时长为d,用符号数表示;
    如果所述移动终端需要发送的上行数据包含的符号数≤A,则在第一数据块发送上行数据;
    如果所述移动终端需要发送的上行数据包含的符号数>A,则在第一数据块发送上行数据中的前A个符号,并在时间窗时长范围内准备后续B个符号数据发送,在A个符号数据发送结束后,在长度为B的第二数据块发送上行 数据。
  6. 如权利要求1~4任意一项所述方法,其特征在于,
    所述第一数据块和第二数据块对应的HARQ进程号不同。
  7. 如权利要求1~4任意一项所述方法,其特征在于,
    在下行控制信令中,包含指示上行时隙包含两个数据块的信息,和或,
    在高层信令中,包含指示上行时隙包含了两个数据块的信息。
  8. 如权利要求5所述方法,其特征在于,
    A<d时,只发送第一数据块。
  9. 一种移动终端,其特征在于,包含终端数据单元和终端控制单元;
    所述终端数据单元,用于发送上行数据;
    所述终端控制单元,用于确定所述第一数据块占用符号和所述第二数据块占用符号;
    在物理上行共享信道的至少一个时隙内,包含LBT占用符号、第一数据块占用符号、第二数据块占用符号;
    所述LBT占用符号,用于进行信道监听,确认可以用于上行数据发送符号数;
    所述第一数据块占用符号,用于传送固定长度的上行数据,包含A个持续的符号;
    所述第二数据块占用符号,用于传送上行数据符号数大于A的部分,包含B个持续的符号;
    A、B为0~14范围内的整数,其中B的数值为所述第一数据块结束到时隙结束之间的符号数。
  10. 如权利要求9所述的移动终端,其特征在于,
    A的值由下行控制信令中的信息指示。
  11. 如权利要求9所述的移动终端,其特征在于,
    A的值由高层信令配置。
  12. 如权利要求9所述的移动终端,其特征在于,
    A的值是在移动终端中预设的。
  13. 如权利要求9~12任意一项所述的移动终端,其特征在于,
    设置时间窗,所述时间窗的时长为d,用符号数表示;
    如果所述移动终端需要发送的上行数据包含的符号数≤A,则在第一数据块发送上行数据;
    如果所述移动终端需要发送的上行数据包含的符号数>A,则在第一数据块发送上行数据中的前A个符号,并在时间窗时长范围内准备后续B个符号数据发送,在A个符号数据发送结束后,在长度为B的第二数据块发送上行数据。
  14. 如权利要求9~12任意一项所述的移动终端,其特征在于,
    所述第一数据块和第二数据块对应的HARQ进程号不同。
  15. 如权利要求9~12任意一项所述的移动终端,其特征在于,
    在下行控制信令中,包含指示上行时隙包含两个数据块的信息,和或,
    在高层信令中,包含指示上行时隙包含了两个数据块的信息。
  16. 如权利要求9~13所述的移动终端,其特征在于,
    A<d时,只发送第一数据块。
  17. 如权利要求9~13所述的移动终端,其特征在于,
    所述终端控制单元,还用于接收指示上行时隙包含两个数据块的信息。
  18. 一种网络设备,其特征在于,包含网络数据单元和网络控制单元;
    所述网络数据单元,用于接收所述上行数据;
    所述网络控制单元,用于发送下行控制信令,包含指示A数值的信息;
    在物理上行共享信道的至少一个时隙内,包含LBT占用符号、第一数据块占用符号、第二数据块占用符号;
    所述LBT占用符号,用于进行信道监听,确认可以用于上行数据发送符号数;
    所述第一数据块占用符号,用于传送固定长度的上行数据,包含A个持续的符号;
    所述第二数据块占用符号,用于传送上行数据符号数大于A的部分,包含B个持续的符号;
    A、B为0~14范围内的整数,其中B的数值为所述第一数据块结束到时隙结束之间的符号数。
  19. 如权利要求18所述的网络设备,其特征在于,
    A的值由下行控制信令中的信息指示。
  20. 如权利要求18所述的网络设备,其特征在于,
    A的值由高层信令配置。
  21. 如权利要求18所述的网络设备,其特征在于,
    A的值是在基站中预设的。
  22. 如权利要求18~21任意一项所述的网络设备,其特征在于,
    所述网络控制单元,还用于发送指示上行时隙包含两个数据块的信息。
  23. 如权利要求18~21任意一项所述的网络设备,其特征在于,
    所述第一数据块和第二数据块对应的HARQ进程号不同。
  24. 如权利要求18~21任意一项所述的网络设备,其特征在于,
    在下行控制信令中,包含指示上行时隙包含两个数据块的信息,和或,
    在高层信令中,包含指示上行时隙包含了两个数据块的信息。
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