WO2018233640A1 - 一种指示、确定时隙结构的方法及装置 - Google Patents

一种指示、确定时隙结构的方法及装置 Download PDF

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Publication number
WO2018233640A1
WO2018233640A1 PCT/CN2018/092032 CN2018092032W WO2018233640A1 WO 2018233640 A1 WO2018233640 A1 WO 2018233640A1 CN 2018092032 W CN2018092032 W CN 2018092032W WO 2018233640 A1 WO2018233640 A1 WO 2018233640A1
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WIPO (PCT)
Prior art keywords
area
slot
downlink
uplink
base station
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PCT/CN2018/092032
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English (en)
French (fr)
Inventor
王磊
托尼
Original Assignee
电信科学技术研究院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201710685486.0A external-priority patent/CN109121213A/zh
Application filed by 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to KR1020207002268A priority Critical patent/KR20200017532A/ko
Priority to EP18820868.0A priority patent/EP3644674A4/en
Priority to JP2019571336A priority patent/JP2020524965A/ja
Priority to US16/625,775 priority patent/US11212795B2/en
Publication of WO2018233640A1 publication Critical patent/WO2018233640A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for indicating and determining a slot structure.
  • the mobile Internet is subverting the traditional mobile communication business model, providing users with an unprecedented experience, which has a profound impact on all aspects of people's work and life.
  • the mobile Internet will promote the further upgrade of human social information interaction methods, providing users with a richer business experience such as augmented reality, virtual reality, ultra high definition (3D) video, mobile cloud and so on.
  • the further development of the mobile Internet will bring about a thousand times increase in mobile traffic in the future, and promote a new round of changes in mobile communication technologies and industries.
  • the Internet of Things has expanded the range of services for mobile communications, from human-to-human communication to the intelligent interconnection of people and things, things and things, making mobile communication technology penetrate into a wider range of industries and fields.
  • TTIs transmission time intervals
  • FIG. 1 is a schematic structural diagram of a frame structure type 1, as shown in the figure, a conventional Long Term Evolution (LTE) Frequency Division Duplex (FDD) system uses a frame structure type 1 (frame structure type 1 FS1), its structure is shown in Figure 1.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • the uplink and downlink transmissions use different carrier frequencies, and both the uplink and downlink transmissions use the same frame structure.
  • a 10ms-length radio frame contains 10 1ms subframes, each of which is divided into two 0.5ms long slots.
  • the TTI duration of uplink and downlink data transmission is 1 ms.
  • FIG. 2 is a schematic structural diagram of a frame structure type 2, as shown in the figure, the existing Time Division Duplex (LTE TDD) system uses a frame structure type 2 (FS2), as shown in FIG. 2 .
  • FS2 frame structure type 2
  • uplink and downlink transmissions use different subframes or different time slots on the same frequency.
  • Each 10 ms radio frame in FS2 consists of two 5 ms half frames, each of which contains five subframes of 1 ms length.
  • the sub-frames in FS2 are classified into three types: downlink sub-frames, uplink sub-frames, and special sub-frames.
  • Each special sub-frame consists of Downlink Pilot Time Slot (DwPTS), Guard Period (GP), and Uplink Pilot Time Slot (UpPTS) is composed of three parts.
  • the DwPTS can transmit downlink pilot, downlink service data and downlink control signaling; the GP does not transmit any signal; the UpPTS only transmits random access and Sounding Reference Symbol (SRS), and cannot transmit uplink service or uplink control information.
  • Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe. Table 7 lists the seven uplink and downlink subframe configurations supported by FS2.
  • Table 1 Uplink-downlink configurations (uplink and downlink subframe configuration)
  • the TTI length is fixed to 1 ms.
  • the uplink and downlink transmissions use different carrier frequencies, and both the uplink and downlink transmissions use the same frame structure.
  • a subframe type is divided into a downlink subframe, an uplink subframe, and a special subframe.
  • slots slots
  • the shortcoming of the prior art is that there is currently no clear solution on how to indicate the structure of the slot.
  • the invention provides a method and a device for indicating and determining a time slot structure, so as to make the slot structure supported by the mobile communication system more flexible and diverse.
  • An embodiment of the present invention provides a method for indicating a slot structure, including:
  • the base station determines the structure within the slot
  • the base station indicates the structure within the slot to the terminal in a dynamic or semi-static manner.
  • the slot includes a structure of one of the following or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the base station indicates to the terminal through the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the base station when there are multiple possible combinations of the structures in the slot, the base station notifies the M type slot structure that the terminal needs to dynamically notify through high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the terminal of the structure of one or more slots.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the uplink and downlink structures of each slot in the Nms are configured through high layer signaling, where N is a positive integer greater than 0.
  • An embodiment of the present invention provides a method for determining a slot structure, including:
  • the terminal determines the structure of one or more slots according to the indicated slot structure.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the base station indicates to the terminal through the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the terminal learns the M kinds of slot structures that need to be dynamically notified according to the notification sent by the base station through the high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the terminal of the structure of one or more slots.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the uplink and downlink structures of each slot in the Nms are configured through high layer signaling, where N is a positive integer greater than 0.
  • An embodiment of the present invention provides an apparatus for indicating a slot structure, including:
  • a structure determining module configured to determine a structure in the slot at the base station
  • the indication module is configured to indicate, in the dynamic or semi-static manner, the structure in the slot to the terminal in the base station.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the indication module is further configured to indicate to the terminal by using the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the indication module is further configured to: when the structure of the plurality of slots is indicated by the group common PDCCH, the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling; and:
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the indication module is further configured to transmit, by using the DCI scheduling data sent in the downlink area of the slot, in the unknown area of the same or different slots, where the data is uplink and/or downlink data.
  • the indication module is further configured to notify the terminal of the slot structure that needs to be dynamically notified through high layer signaling when there are multiple possible combinations of structures in the slot.
  • the indication module is further configured to send, by using the group common PDCCH, indication information including a ceil (log2(M)) bit, to notify the terminal of one or more M types of slot structures, where M is a natural number.
  • the indication module is further configured to notify, when the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure, and the number of OFDM symbols included in each area.
  • the indication module when the indication module is further configured to indicate the structure in the slot to the terminal in a semi-static manner, the uplink and downlink structures of each slot in the Nms are configured by the high layer signaling, where N is a positive integer greater than 0.
  • An embodiment of the present invention provides an apparatus for determining a slot structure, including:
  • a receiving module configured to receive a structure in a slot indicated by the base station to the terminal in a dynamic or semi-static manner
  • the Slot determining module is configured to determine, by the terminal, the structure of one or more slots according to the indicated slot structure.
  • the slot includes a structure of one of the following or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the receiving module is further configured to receive an indication sent by the base station to the terminal by using the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the M type slot structure that needs dynamic notification is obtained according to the notification sent by the base station through the high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the terminal of the structure of one or more slots.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the receiving module is further configured to: when receiving the structure in the slot indicated by the base station to the terminal in a semi-static manner, configure uplink and downlink structures of each slot in the Nms by using high layer signaling, where N is a positive integer greater than 0.
  • the terminal since the base station indicates the structure in the slot to the terminal in a dynamic or semi-static manner, the terminal determines the structure of one or more slots according to the indicated slot structure. Therefore, it is possible to make the slot structure supported by the system more flexible and diverse in the future when the mobile communication system needs to provide lower network delay and support a richer service type.
  • FIG. 1 is a schematic structural view of a frame structure type 1 in the background art
  • FIG. 2 is a schematic structural view of a frame structure type 2 in the background art
  • FIG. 3 is a schematic flowchart of a method for implementing a method for indicating a time slot structure according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for implementing a method for determining a slot structure on a terminal side according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a slot structure information indication according to Embodiment 4 of the embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an apparatus for indicating a slot structure on a base station side according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of an apparatus for determining a slot structure on a terminal side according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • NR New Radio
  • the user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone), a mobile phone (handset). And portable devices, etc., the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or "cellular"
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular"
  • the telephone device, the computer with wireless communication function, etc., the user equipment can also be a mobile device that is portable, pocket-sized, handheld, built-in, or in-vehicle.
  • a base station may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in TD-SCDMA or WCDMA, or may be an evolved base station (eNodeB or eNB or e- in LTE).
  • NodeB, evolutional Node B), or a base station (gNB) in 5G NR the present invention is not limited.
  • the uplink and downlink structures in one subframe are fixed.
  • one subframe can support both full uplink and full downlink;
  • OFDM within a subframe Orthogonal Frequency
  • the Division Multiplex (Orthogonal Frequency Division Multiplexing) symbols are all used for uplink transmission or all for downlink transmission or DL ⁇ GP ⁇ UL.
  • the specific slot structure is determined by the subframe configuration configured in the high layer signaling. With the development of mobile technology, future mobile communication systems need to provide lower network delay and support a wider variety of services. The slot structure that the system needs to support is also more flexible. How to indicate the structure of the terminal slot, there is currently no clear solution. Based on this, the embodiment of the present invention provides a scheme for the base station to indicate the uplink and downlink structure in the slot in a dynamic or semi-static manner.
  • FIG. 3 is a schematic flowchart of a method for implementing a method for indicating a time slot structure. As shown in the figure, the method may include:
  • Step 301 The base station determines a structure in the slot.
  • Step 302 The base station indicates the structure in the slot to the terminal in a dynamic or semi-static manner.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the structure of the slot may be defined as follows:
  • Structure areas that may exist in the Slot including but not limited to the uplink area, the downlink area, the unknown area, the empty area, the guard period, and the like;
  • the uplink area includes one or more OFDM symbols, and the uplink area can only transmit uplink data;
  • the downlink area includes one or more OFDM symbols, and the downlink area can only transmit downlink data;
  • the uncertain region includes one or more OFDM symbols, and the base station may perform related operations as needed, but the terminal side does not make any assumptions, and cannot send and receive data on the OFDM symbol;
  • the empty region includes one or more OFDM symbols on which no data is transmitted;
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the base station indicates to the terminal through the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the base station may indicate the structure of one or more slots by using a group common PDCCH (PDCCH: physical downlink control channel, physical downlink control channel);
  • PDCCH physical downlink control channel, physical downlink control channel
  • the group common PDCCH is a PDCCH that is valid for a group of terminals, that is, only a specific UE can receive the group common PDCCH.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the group common PDCCH indicates the structure of multiple slots
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling
  • the one group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the slot format indicated by the group common PDCCH indicates that the domain is unknown.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area of the same or different slots, where the data is uplink and/or downlink data.
  • an area indicated by the domain indicated by the slot format in the group common PDCCH is unknown.
  • the base station may perform scheduling data transmission in the unknown area by using a DCI (Downlink Control Indicator) sent in the downlink area of the slot, where the data is uplink and/or downlink data.
  • DCI Downlink Control Indicator
  • the specific group common PDCCH indicates the slot format of the slot n, slot n+1, ..., slot N, and the base station can transmit the data in the unknown part of the slot through the DCI scheduling data.
  • the base station may also notify the terminal of the M type slot structure that the terminal needs to dynamically notify through high layer signaling, where M is a natural number.
  • M is a natural number.
  • the slot structure that informs that dynamic notification is required is slot structure 1, slot structure 2, slot structure 3, ..., slot structure N, where M is greater than N.
  • the base station may further send, by using the group common PDCCH, indication information including a ceil (log2(M)) bit, indicating the structure of one or more slots of the terminal.
  • the base station may also indicate the area included in each slot structure and the number of OFDM symbols included in each area when the M type slot structure that needs to be dynamically indicated is notified through the high layer signaling.
  • the uplink and downlink structures of each slot in the Nms are configured through high layer signaling, where N is a positive integer greater than 0.
  • the uplink and downlink structures within 10 ms are configured through high layer signaling, and the frame structure in TD-LTE is included.
  • the frame structure included in TD-LTE is as shown in Table 2 below:
  • D represents downlink
  • S represents DL, UL or GP
  • U represents uplink
  • the base station configures a slot structure in a certain period of time in a semi-static manner, and the base station configures an uplink and downlink structure within 10 ms through high layer signaling, and at least includes a frame structure in TD-LTE, as shown in Table 2.
  • the terminal detects the received group common PDCCH according to a predefined time interval or a time interval notified by the base station;
  • the terminal determines the structure of one or more slots according to the slot structure indication information notified in the group common PDCCH.
  • the terminal transmits the uplink data on the OFDM symbol indicated as the uplink area, and receives the downlink data on the OFDM symbol indicated as the downlink area, and the terminal does not make any assumption before receiving the other indication information sent by the base station on the OFDM indicated as the unknown area.
  • the transmission of data is considered to be absent on the OFDM indicated as the empty region.
  • the terminal receives the effective time or period of the slot structure indication information carried by the group common PDCCH configured by the high-level signaling, for example, N slots, thereby determining the structure of the N slots.
  • the terminal determines the slot structure according to the semi-static configuration sent by the base station.
  • the terminal determines the slot structure information in a certain period, for example, the structure information of the slot every 10 ms, according to the configuration information carried in the RRC signaling (RRC: Radio Resource Control) transmitted by the base station.
  • RRC Radio Resource Control
  • FIG. 4 is a schematic flowchart of a method for implementing a method for determining a slot structure on a terminal side, as shown in the figure, which may include:
  • Step 401 Receive a structure in a slot indicated by the base station to the terminal in a dynamic or semi-static manner;
  • Step 402 The terminal determines the structure of one or more slots according to the indicated slot structure.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the base station indicates to the terminal through the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the terminal learns the M kinds of slot structures that need to be dynamically notified according to the notification sent by the base station through the high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the terminal of the structure of one or more slots.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the uplink and downlink structures of each slot in the Nms are configured through high layer signaling, where N is a positive integer greater than 0.
  • the uplink and downlink structures within 10 ms are configured through high layer signaling, and the frame structure in TD-LTE is included.
  • the frame structure included in TD-LTE is as follows:
  • D represents downlink
  • S represents DL, UL or GP
  • U represents uplink
  • the base station carries the slot structure indication information through the group common PDCCH, and notifies the structure information of one or more slots. Any combination of the regions may be included within the slot and include at least one of the above regions.
  • the slot there is only an uplink area in the slot, or only a downlink area in the slot, or only an unknow area in the slot, or only an empty area in the slot, or only a GP area in the slot.
  • the corresponding area contains at least one OFDM symbol. If the slot includes both the downlink area and the uplink area, the downlink area is located before the uplink area.
  • the location of the unknown area can be as follows:
  • the unknown area can only be after the downlink area.
  • the unknown area can be located before or after the uplink area.
  • the unknown zone is located after the downlink zone and before the uplink zone.
  • the uplink area can only transmit uplink data, the downlink area can only transmit downlink data, and the empty area does not transmit any data.
  • the unknown area terminal does not make any assumptions about the data transmission in the area before receiving the corresponding explicit signaling.
  • the indication information carried in the group common PDCCH by the base station indicates the type of the area included in the slot, which can be determined as follows:
  • the indication information indicates the type of the area included in the slot, and the duration of each area type, that is, the number of OFDM symbols occupied. For example, a slot contains 7 OFDM symbols, and each area type requires 3 bits of information for indication. Assuming that there are five types of regions that may appear in the slot, 15 bits are required to indicate the type of the slot.
  • the protocol specifies the type of slot in M that may appear, as shown in the following table. Assuming that there are 7 types of slots supported by the system, 3 bits are required for indication. The corresponding indication bit fields are shown in Table 3 below.
  • a slot contains 7 OFDM symbols, as shown in Table 4 below. Suppose that S1 is full downlink, S2 is full uplink, and S3 contains three regional types (DL is 4, unknown is 1, and UL is 2).
  • S4 contains three types of regions (DL is 5, unknown is 1, and UL is 1).
  • S5 contains three types of regions (DL is 2, unknown is 3, UL is 2), and S6 contains two regions.
  • Type (DL is 4, unknown is 3), and S7 contains two types of regions (unknown is 3, UL is 4).
  • the base station further dynamically indicates that the slot structure is one of the above by the indication information carried on the group common PDCCH.
  • Bit field Slot structure 000 Full down 001 Full uplink 010 DL+unknown+UL 011 Empty 100 DL+unknown 101 Unknown+UL or UL+unknown 110 DL+GP+UL 111 Reserved
  • Bit field Slot structure 000 Full down 001 Full uplink 010 DL is 4, unknown is 1, UL is 2 011 DL is 5, unknown is 1, and UL is 1. 100 DL is 2, unknown is 3, and UL is 2 101 DL is 4, unknown is 3 110 Unknown is 3, UL is 4 111 Reserved
  • the terminal After receiving the corresponding slot structure indication information, the terminal receives or sends data according to the slot structure indicated by the indication information.
  • the base station configures the effective time of the slot structure indication information notified by the group common PDCCH by using the high layer signaling.
  • the high-level signaling configuration is that the effective time is N slots, and after receiving the slot structure indication information indicated by the group common PDCCH, the terminal considers that the structure of the subsequent N slots is the same as the slot structure indicated by the indication information.
  • the slot structure indication information indicated by the group common PDCCH is valid until the next time the group common PDCCH is correctly received.
  • the group common PDCCH needs to indicate the structure information of N slots.
  • the group common PDCCH includes N indication information fields, which respectively indicate structural information of the N slots. For example, if the structure information of each slot needs to be 3 bits, the group common PDCCH needs to carry 3*N bit information.
  • the structure information of the plurality of slots indicated by the Group common PDCCH As in Embodiment 1-3, the structure information of the plurality of slots indicated by the Group common PDCCH.
  • FIG. 5 is a schematic diagram of the slot structure information indication of Embodiment 4.
  • the group common PDCCH transmitted in slot n indicates slot structure information of slot n, slot n+1, . . . , slot N. That is, the terminal receives the slot structure indication information carried by the group common PDCCH in the slot n.
  • the structure indication information indicates that slot n, slot n+1, ..., slot N contains an unknown area in the slot structure.
  • the base station may transmit data within the unknown by a DCI scheduling terminal transmitting scheduling terminal data transmitted on other PDCCHs.
  • the terminal does not make any assumptions about the unknown area before receiving the explicit indication signaling.
  • the base station configures a combination of M types of slot structures by using high layer signaling (for example, RRC signaling), where each combination in the slot structure of the M includes N slots, where N is a positive integer greater than or equal to 1, and M is greater than or equal to 1. A positive integer.
  • the base station sends the indication information of the ceil (log2(M)) bit through the group common PDCCH, where the indication information indicates one of the slot combinations in the M of the high layer signaling, and the slot combination includes at least one slot.
  • This patent does not limit the structure of each slot in the slot combination, depending on the configuration of the base station.
  • the base station configures the structure of the slot through high layer signaling.
  • One possible scenario is NR (new radio access technology) in TD LTE (TD-SCDMA Long Term Evolution, TD-SCDMA: Time Division Synchronized Code Division Multiple Access, Time Division Synchronization Code) Sub-multiple access) band transmission.
  • TD LTE TD-SCDMA Long Term Evolution, TD-SCDMA: Time Division Synchronized Code Division Multiple Access, Time Division Synchronization Code
  • Sub-multiple access NR (new radio access technology) in TD LTE (TD-SCDMA Long Term Evolution, TD-SCDMA: Time Division Synchronized Code Division Multiple Access, Time Division Synchronization Code) Sub-multiple access) band transmission.
  • TD LTE TD-SCDMA Long Term Evolution, TD-SCDMA: Time Division Synchronized Code Division Multiple Access, Time Division Synchronization Code) Sub-multiple access
  • the base station configures the slot structure through the high-level signaling
  • the Uplink-downlink configuration specifically used in the system is configured through high-level signaling or notified by DCI format1C.
  • the structure of the NR base station through the high-level signaling configuration slot is consistent with the following seven configurations.
  • the LTE LTE system uses the Uplink-downlink configuration used in the high-level signaling configuration system as configuration #0.
  • the NR base station configures the structure of the slot every 10 ms through high-level signaling:
  • the structure of the 20 slots included in 10 ms is (DDSSUUUUUUDDSSUUUUU), where S is specifically configured according to the configuration of the special subframe used in the TDD system.
  • the structure of the 10 slots included in 10 ms is (DSUUU DSUUU), where S is specifically configured according to the configuration of the special subframe used in the TDD system.
  • an embodiment of the present invention further provides an apparatus for indicating a slot structure, a device for determining a slot structure, a method for solving a problem by the devices, and a method for indicating a slot structure,
  • the method for determining the slot structure is similar, so the implementation of these devices can be referred to the implementation of the method, and the repeated description will not be repeated.
  • FIG. 6 is a schematic structural diagram of an apparatus for indicating a slot structure on a base station side, as shown in the figure, which may include:
  • the structure determining module 601 is configured to determine, in the base station, a structure in the slot;
  • the indicating module 602 is configured to indicate, in the dynamic or semi-static manner, the structure in the slot to the terminal in the base station.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the indication module is further configured to indicate to the terminal by using the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the indication module is further configured to: when the structure of the plurality of slots is indicated by the group common PDCCH, the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling; and:
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the slot format indicated by the group common PDCCH indicates that the domain is unknown.
  • the indication module is further configured to transmit, by using the DCI scheduling data sent in the downlink area of the slot, in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the indication module is further configured to notify the terminal of the M type slot structure that needs to be dynamically notified through high layer signaling when the structure in the slot has multiple possible combinations, where M is a natural number.
  • the indication module is further configured to send, by using the group common PDCCH, indication information including a ceil (log2(M)) bit, to notify the terminal of the structure of one or more slots.
  • the indication module is further configured to notify, when the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure, and the number of OFDM symbols included in each area.
  • the indication module when the indication module is further configured to indicate the structure in the slot to the terminal in a semi-static manner, the uplink and downlink structures of each slot in the Nms are configured by the high layer signaling, where N is a positive integer greater than 0.
  • FIG. 7 is a schematic structural diagram of a device for determining a slot structure on a terminal side, as shown in the figure, which may include:
  • the receiving module 701 is configured to receive a structure in a slot that is indicated by the base station to the terminal in a dynamic or semi-static manner;
  • the Slot determining module 702 is configured to determine, by the terminal, the structure of one or more slots according to the indicated slot structure.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the receiving module is further configured to receive an indication sent by the base station to the terminal by using the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the slot format indicated by the group common PDCCH indicates that the domain is unknown.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the M type slot structure that needs dynamic notification is obtained according to the notification sent by the base station through the high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the structure of one or more slots of the terminal.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the receiving module is further configured to: when receiving the structure in the slot indicated by the base station to the terminal in a semi-static manner, configure uplink and downlink structures of each slot in the Nms by using high layer signaling, where N is a positive integer greater than 0.
  • FIG. 8 is a schematic structural diagram of a base station, as shown in the figure, the base station includes:
  • the processor 800 is configured to read a program in the memory 820 and perform the following process:
  • the transceiver 810 is configured to receive and transmit data under the control of the processor 800, and performs the following processes:
  • the structure within the slot is indicated to the terminal in a dynamic or semi-static manner.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the base station indicates to the terminal through the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the slot format indicated by the group common PDCCH indicates that the domain is unknown.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the base station when there are multiple possible combinations of the structures in the slot, the base station notifies the M type slot structure that the terminal needs to dynamically notify through high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the terminal of the structure of one or more slots.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the uplink and downlink structures of each slot in the Nms are configured through high layer signaling, where N is a positive integer greater than 0.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 800 and various circuits of memory represented by memory 820.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 810 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.
  • FIG. 9 is a schematic structural diagram of a terminal. As shown in the figure, the terminal includes:
  • the transceiver 910 is configured to receive and transmit data under the control of the processor 900, and performs the following processes:
  • the processor 900 is configured to read a program in the memory 920 and perform the following process:
  • the structure of one or more slots is determined according to the indicated slot structure.
  • the slot includes the following structure of one or a combination region thereof, where each region includes one or more OFDM symbols: an uplink region, a downlink region, an uncertainty region, an empty region, and a guard period region, where:
  • the terminal side does not make any uncertainty region that does not assume that the data is not transmitted or received on the OFDM symbol in the area;
  • a guard period area for giving a guard interval from downlink to uplink at the base station side is provided.
  • the uplink area is behind the downlink area
  • the uncertainty area is after the downlink area
  • the uncertainty area is before or after the uplink area
  • the downlink area appears before the uplink area, and the uncertainty area is after the downlink area and before the downlink area.
  • the base station indicates to the terminal through the group common PDCCH.
  • the group common PDCCH is a PDCCH that is valid for a group of terminals.
  • the number N of the plurality of slots indicated by the group common PDCCH is notified by the high layer signaling;
  • a group common PDCCH includes a slot format indicating that the domain indicates the structure of the N slots;
  • the group common PDCCH includes N slot format indication fields, respectively indicating the structure of the N slots.
  • the slot format indicated by the group common PDCCH indicates that the domain is unknown.
  • the base station transmits the DCI scheduling data sent in the downlink area of the slot in the unknown area in the same or different slots, where the data is uplink and/or downlink data.
  • the terminal learns the M kinds of slot structures that need to be dynamically notified according to the notification sent by the base station through the high layer signaling, where M is a natural number.
  • the base station sends the indication information including the ceil (log2(M)) bit through the group common PDCCH to notify the terminal of the structure of one or more slots.
  • the base station when the base station notifies the M type slot structure that needs to be dynamically indicated by the high layer signaling, the area included in each slot structure and the number of OFDM symbols included in each area are notified.
  • the uplink and downlink structures of each slot in the Nms are configured through high layer signaling, where N is a positive integer greater than 0.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 910 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 930 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.
  • the base station dynamically indicates the structure of one or more slots through the group common PDCCH, or the base station configures the structure of one or more slots in a semi-static manner.
  • the base station may transmit data in an area indicated as unknown by the UE-specific DCI scheduling terminal.
  • a scheme for indicating a slot structure is provided to make the slot structure supported by the system more flexible and diverse in the future when the mobile communication system needs to provide lower network delay and support a richer service type.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明公开了一种指示、确定时隙结构的方法及装置，包括：基站确定时隙内的结构；基站通过动态或者半静态的方式向终端指示时隙内的结构。接收基站通过动态或者半静态的方式向终端指示的时隙内的结构；终端根据指示的时隙结构确定一个或者多个时隙的结构。采用本发明，能够在未来移动通信系统需要提供更低的网络时延并支持更丰富的业务类型时，使系统支持的时隙结构也更加灵活多样。

Description

一种指示、确定时隙结构的方法及装置
本申请要求在2017年6月23日和2017年8月11日提交中国专利局、申请号为201710486790.2和201710685486.0、发明名称均为“一种指示、确定时隙结构的方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，特别涉及一种指示、确定时隙结构的方法及装置。
背景技术
移动互联网正在颠覆传统移动通信业务模式，为用户提供前所未有的使用体验，深刻影响着人们工作生活的方方面面。移动互联网将推动人类社会信息交互方式的进一步升级，为用户提供增强现实、虚拟现实、超高清(3D)视频、移动云等更加丰富的业务体验。移动互联网的进一步发展将带来未来移动流量超千倍增长，推动移动通信技术和产业的新一轮变革。而物联网则扩展了移动通信的服务范围，从人与人通信延伸到人与物、物与物智能互联，使移动通信技术渗透至更加广阔的行业和领域。未来，移动医疗、车联网、智能家居、工业控制、环境监测等将会推动物联网应用爆发式增长，数以千亿的设备将接入网络，实现真正的“万物互联”。同时，海量的设备连接和多样化的物联网业务也会给移动通信带来新的技术挑战。
随着新的业务需求的持续出现和丰富，对未来移动通信系统提出了更高的性能需求，例如更高的峰值速率、更好的用户体验速率、更小的时延、更高的可靠性、更高的频谱效率和更高的能耗效率等，并需要支持更多的用户接入以及使用各种业务类型。为了支持数量巨大的各类终端连接以及不同的业务类型，上下行资源的灵活配置成为技术发展的一大趋势。未来的系统资源可以根据业务的不同，划分成不同的子带，并在子带上划分长度不同的传输时间间隔(Transmission Time Interval，TTI)，以满足多种业务需求。
图1为frame structure type 1结构示意图，如图所示，现有长期演进(Long Term Evolution，LTE)频分双工(Frequency Division Duplex，FDD)系统使用帧结构类型1(frame structure type 1，简称FS1)，其结构如图1所示。在FDD系统中，上行和下行传输使用不同的载波频率，上行和下行传输均使用相同的帧结构。在每个载波上，一个10ms长度的无线帧包含有10个1ms子帧，每个子帧内由分为两个0.5ms长的时隙。上行和下行数据发送的TTI时长为1ms。
图2为frame structure type 2结构示意图，如图所示，现有时分双工(Time Division  Duplex，LTE TDD)系统使用帧结构类型2(frame structure type 2，简称FS2)，如图2所示。在TDD系统中，上行和下行传输使用相同的频率上的不同子帧或不同时隙。FS2中每个10ms无线帧由两个5ms半帧构成，每个半帧中包含5个1ms长度的子帧。FS2中的子帧分为三类：下行子帧、上行子帧和特殊子帧，每个特殊子帧由下行传输时隙(Downlink Pilot Time Slot，DwPTS)、保护间隔(Guard Period，GP)和上行传输时隙(Uplink Pilot Time Slot，UpPTS)三部分构成。其中DwPTS可以传输下行导频，下行业务数据和下行控制信令；GP不传输任何信号；UpPTS仅传输随机接入和探测参考信号(Sounding Reference Symbol，SRS)，不能传输上行业务或上行控制信息。每个半帧中包含至少1个下行子帧和至少1个上行子帧，以及至多1个特殊子帧。FS2中支持的7种上下行子帧配置方式如表1所示。
表1：Uplink-downlink configurations(上下行子帧配置)
Figure PCTCN2018092032-appb-000001
在现有LTE系统中，TTI长度固定为1ms。对于FDD系统而言，上行和下行传输使用不同的载波频率，上行和下行传输均使用相同的帧结构。对于TDD系统而言，子帧类型分为下行子帧，上行子帧和特殊子帧。在未来移动通信系统中，业务类型更加丰富，slot(时隙)需要有更丰富的结构以及更灵活的配置支撑不同的业务需求。但现有技术的不足在于：如何指示slot的结构当前并没有明确的方案。
发明内容
本发明提供了一种指示、确定时隙结构的方法及装置，用以使移动通信系统支持的slot结构更加灵活多样。
本发明实施例提供了一种指示时隙结构的方法，包括：
基站确定slot内的结构；
基站通过动态或者半静态的方式向终端指示slot内的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，基站是通过group common PDCCH向终端指示的。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，在slot内的结构有多种可能的组合时，基站通过高层信令通知终端需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
本发明实施例提供了一种确定时隙结构的方法包括：
接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
终端根据指示的slot结构确定一个或者多个slot的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，基站是通过group common PDCCH向终端指示的。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，在slot内的结构有多种可能的组合时，终端根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
本发明实施例提供了一种指示时隙结构的装置，包括：
结构确定模块，用于在基站确定slot内的结构；
指示模块，用于在基站通过动态或者半静态的方式向终端指示slot内的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，指示模块进一步用于通过group common PDCCH向终端指示。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，指示模块进一步用于当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，指示模块进一步用于通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot的unknown区域传输，所述数据为上行和/或下行数据。
实施中，指示模块进一步用于在slot内的结构有多种可能的组合时，通过高层信令通知终端需要动态通知的slot结构。
实施中，指示模块进一步用于通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个M种slot结构，其中，M为自然数。
实施中，指示模块进一步用于在通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，指示模块进一步用于通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
本发明实施例提供了一种确定时隙结构的装置，包括：
接收模块，用于接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
Slot确定模块，用于终端根据指示的slot结构确定一个或者多个slot的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，接收模块进一步用于接收基站通过group common PDCCH向终端发出的指示。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，Slot确定模块进一步用于在slot内的结构有多种可能的组合时，根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，接收模块进一步用于在接收基站通过半静态的方式向终端指示的slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
本发明有益效果如下：
在本发明实施例提供的技术方案中，由于基站通过动态或者半静态的方式向终端指示slot内的结构，终端则根据指示的slot结构确定一个或者多个slot的结构。因此，能够在未来移动通信系统需要提供更低的网络时延并支持更丰富的业务类型时，使系统支持的slot结构也更加灵活多样。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为背景技术中frame structure type 1结构示意图；
图2为背景技术中frame structure type 2结构示意图；
图3为本发明实施例中指示时隙结构的方法实施流程示意图；
图4为本发明实施例中终端侧确定时隙结构的方法实施流程示意图；
图5为本发明实施例中实施例4的slot结构信息指示示意图；
图6为本发明实施例中基站侧指示时隙结构的装置结构示意图；
图7为本发明实施例中终端侧确定时隙结构的装置结构示意图；
图8为本发明实施例中基站结构示意图；
图9为本发明实施例中终端结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，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。
应理解，本发明的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、新空口(New Radio，NR)等。
还应理解，在本发明实施例中，用户设备(User Equipment，UE)包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、 手机(handset)及便携设备(portable equipment)等，该用户设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
在本发明实施例中，基站(例如，接入点)可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是TD-SCDMA或WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(eNodeB或eNB或e-NodeB，evolutional Node B)，或者是5G NR中的基站(gNB)，本发明并不限定。
在LTE系统中，一个子帧内的上下行结构是固定的，例如对于FDD系统而言，一个子帧可以同时支持全上行和全下行；对于TDD系统而言，子帧内的OFDM(Orthogonal Frequency Division Multiplex，正交频分复用)符号全部用于上行传输或全部用于下行传输或者包含DL\GP\UL，具体的时隙结构通过高层信令中配置的subframe configuration确定。随着移动技术的发展，未来移动通信系统需要提供更低的网络时延并支持更丰富的业务类型。系统所需要支持的slot结构也更加灵活多样。如何指示终端slot的结构，当前并没有明确的方案。基于此，本发明实施例中提供了基站通过动态或者半静态的方式指示slot内的上下行结构的方案，下面结合附图对本发明的具体实施方式进行说明。
在说明过程中，将分别从基站与终端侧的实施进行说明，然后还将给出二者配合实施的实例以更好地理解本发明实施例中给出的方案的实施。这样的说明方式并不意味着二者必须配合实施、或者必须单独实施，实际上，当终端与基站分开实施时，其也各自解决终端侧、基站侧的问题，而二者结合使用时，会获得更好的技术效果。
图3为指示时隙结构的方法实施流程示意图，如图所示，可以包括：
步骤301、基站确定slot内的结构；
步骤302、基站通过动态或者半静态的方式向终端指示slot内的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
具体的，所述slot的结构可以有如下定义：
Slot内可能存在的结构区域，包括但不限于上行区域，下行区域，不确定(unknown)区域，empty区域，guard period等；
所述上行区域包含一个或者多个OFDM符号，所述上行区域只能传输上行数据；
所述下行区域包含一个或者多个OFDM符号，所述下行区域只能传输下行数据；
所述不确定区域包含一个或者多个OFDM符号，基站可以根据需要进行相关操作，但是终端侧不做任何假设，也不能在所述OFDM符号上收发数据；
所述empty区域包含一个或者多个OFDM符号，所述符号上不传输数据；
在一个slot内，至少存在上述的一种区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，基站是通过group common PDCCH向终端指示的。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
具体的，基站可以通过group common PDCCH(组公共PDCCH，PDCCH：physical downlink control channel，物理下行控制信道)指示一个或者多个slot的结构；
所述group common PDCCH是对于一组终端有效的PDCCH，即只有特定UE才能接收所述group common PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
具体的，当所述group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；
所述一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，由group common PDCCH中的slot format指示域指示为unknown的区域。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot的unknown区域传输，所述数据为上行和/或下行数据。
具体的，由所述group common PDCCH中的slot format(时隙格式)指示域指示为unknown的区域
基站可以通过该slot的下行区域中发送的DCI(Downlink Control Indicator，下行控制指示)进行调度数据在unknown区域传输，所述数据为上行和/或下行数据。具体的group common PDCCH指示slot n，slot n+1，…，slot N的slot format，基站可以通过DCI调度数据在slot的unknown部分进行传输。
实施中，在slot内的结构有多种可能的组合时，基站还可以通过高层信令通知终端需要动态通知的M种slot结构，其中，M为自然数。例如，在有M种可能的组合时，通知需要动态通知的slot结构有slot结构1，slot结构2，slot结构3，…，slot结构N，其中，M大于N。
实施中，基站还可以进一步通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，指示终端一个或者多个slot的结构。
实施中，基站还可以在通过高层信令通知需要动态指示的M种slot结构时，指示每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
具体的，通过高层信令配置10ms内的上下行结构，并包含TD-LTE中的帧结构。
具体实施中，包含TD-LTE中的帧结构如下表2所示：
表2：TD-LTE中的帧结构
Figure PCTCN2018092032-appb-000002
其中，D表示下行，S表示包含DL、UL或GP，U表示上行。
具体的，基站通过半静态的方式配置一定时间段内的slot结构，基站通过高层信令配置10ms内的上下行结构，并至少包含TD-LTE中的帧结构，如表2所示。
容易理解，终端侧的实施是与基站侧相对应的，因此实施中可以参考基站侧中的实施说明。
具体的，终端按照预定义的时间间隔或者基站通知的时间间隔检测接收group common PDCCH；
终端按照group common PDCCH中通知的slot结构指示信息确定一个或者多个slot的结构。
终端在指示为上行区域的OFDM符号上发送上行数据，在指示为下行区域的OFDM符号上接收下行数据，在指示为unknown区域的OFDM上终端在接收到基站发送的其他指示信息之前不做任何假设，在指示为empty区域的OFDM上认为没有数据的传输。
进一步的，终端接收高层信令配置的group common PDCCH所携带的slot结构指示信息的生效时间或者周期，例如N个slot，从而确定所述N个slot的结构。
或者，终端按照基站发送的半静态配置确定slot结构，
终端按照基站发送的RRC signaling(RRC信令，RRC：Radio Resource Control，无线资源控制)中携带的配置信息，确定一定周期内的slot结构信息，例如每10ms内slot的结构信息。
下面进行说明。
图4为终端侧确定时隙结构的方法实施流程示意图，如图所示，可以包括：
步骤401、接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
步骤402、终端根据指示的slot结构确定一个或者多个slot的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，基站是通过group common PDCCH向终端指示的。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，在slot内的结构有多种可能的组合时，终端根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
具体的，通过高层信令配置10ms内的上下行结构，并包含TD-LTE中的帧结构。
实施中，包含TD-LTE中的帧结构如下所示：
Figure PCTCN2018092032-appb-000003
其中，D表示下行，S表示包含DL、UL或GP，U表示上行。
下面以实例进行说明。
实施例1：
假设slot的内所包含的可能区域包括：上行区域、下行区域、unknown区域、empty区域、GP区域等。基站通过group common PDCCH携带slot结构指示信息，通知一个或者多个slot的结构信息。所述slot内可以包含所述区域的任何组合，且至少包含如上区域中的至少一个。
例如slot内只有上行区域，或者slot内只有下行区域，或者slot内只有unknow区域，或者slot内只有empty区域，或者slot内只有GP区域。当slot内包含某种区域时，对应区域内至少包含一个OFDM符号。如果slot内同时包含下行区域和上行区域，则下行区域位于上行区域之前。
需要说明的是，如果slot内包含有unknown区域，则unknown区域的位置可以如下：
当slot内包含unknown区域和下行区域时，unknown区域只能在下行区域之后；
当slot内包含unknown区域和上行区域时，unknown区域可以位于上行区域之前或之后；
当slot内包含unknown区域，上行区域以及下行区域时，unknown区域位于下行区域之后，上行区域之前。
上行区域只能传输上行数据，下行区域只能传输下行数据，empty区域不传输任何数据，unknown区域终端在接收到相应的显式信令之前不对该区域内的数据传输做任何假设。
基站通过group common PDCCH内携带的指示信息，指示slot内包含的区域类型，可以通过如下方式确定：
所述指示信息，指示slot内包含的区域类型，以及每个区域类型的持续时间，即所占的OFDM符号数目。例如一个slot包含7个OFDM符号，每种区域类型需要3bit信息进行指示。假设slot内可能出现的区域类型有5种，则需要15bit指示slot的类型。
或者，协议规定可能出现的M中slot类型，例如如下表所示。假设系统支持的slot类型有7种，则需要3bit进行指示，对应指示bit域如下表3所示。
或者，在slot内的结构有多种可能的组合时，基站通过高层信令半静态配置需要动态指示的slot类型。例如基站通过高层信令半静态配置需要动态指示的slot类型有N种，本实施例中假设N＝7种，分别为S1，S2，S3，S4，S5，S6，S7。且基站需要指示每种slot类型中包含的区域类型，以及区域类型所占的OFDM符号个数。假设一个slot内包含7个OFDM符号，同样以如下表4所示，假设S1中为全下行，S2中为全上行，S3中包含三种区域类型(DL为4，unknown为1，UL为2)，S4中包含三种区域类型(DL为5，unknown为1，UL为1)，S5中包含三种区域类型(DL为2，unknown为3，UL为2)，S6中包含两种区域类型(DL为4，unknown为3)，S7中包含两种区域类型(unknown为3，UL为4).
基站进一步通过在group common PDCCH上承载的指示信息动态的指示slot结构为如上的其中之一。例如通过ceil(log 2(M))＝ceil(log 2(7))＝3bit指示slot结构，具体如表4所示。
表3：
Bit field Slot structure
000 全下行
001 全上行
010 DL+unknown+UL
011 Empty
100 DL+unknown
101 Unknown+UL或者UL+unknown
110 DL+GP+UL
111 Reserved
表4：
Bit field Slot structure
000 全下行
001 全上行
010 DL为4，unknown为1，UL为2
011 DL为5，unknown为1，UL为1
100 DL为2，unknown为3，UL为2
101 DL为4，unknown为3
110 unknown为3，UL为4
111 Reserved
终端接收到相应slot结构指示信息后，按照所述指示信息指示的slot结构接收或者发送数据。
实施例2：
基站通过高层信令配置group common PDCCH通知的slot结构指示信息的有效时间。例如高层信令配置所述有效时间为N个slot，则终端在接收到group common PDCCH指示的slot结构指示信息后，认为在随后的N个slot的结构均与指示信息指示的slot结构相同。
或者，group common PDCCH指示的slot结构指示信息的生效时间为下一次正确接收到group common PDCCH之前。
实施例3：
group common PDCCH需要指示N个slot的结构信息。具体的，group common PDCCH内包含N个指示信息域，分别指示N个slot的结构信息。例如指示每个slot的结构信息需要3bit信息，则group common PDCCH内需要携带3*N bit信息。
实施例4：
如实施例1-3，Group common PDCCH指示的多个slot的结构信息。
例如，图5为实施例4的slot结构信息指示示意图，如图所示，在slot n中发送的group common PDCCH指示slot n，slot n+1，…，slot N的slot结构信息。即终端在slot n接收到group common PDCCH携带的slot结构指示信息。所述结构指示信息指示slot n，slot n+1，…，slot N的slot结构内包含unknown区域。基站可以通过在其他PDCCH上传输的调度终端数据传输的DCI调度终端在所述unknown内传输数据。终端在接收到显式指示信令之前，不对unknown区域做任何假设。
实施例5：
基站通过高层信令(例如RRC signaling)配置M种slot结构的组合，所述M中slot结构中的每种组合包含N个slot，其中N为大于等于1的正整数，M为大于等于1的正整数。基站通过group common PDCCH发送ceil(log2(M))bit的指示信息，所述指示信息指示高层信令通知的M中slot组合中的一种，所述slot组合至少包含一个slot。本专利对于所述slot组合中每个slot的结构不做任何限定，取决于基站的配置。
实施例6：
基站通过高层信令配置slot的结构。一个可能的场景是NR(new radio access technology，新无线接入技术)在TD LTE(TD-SCDMA Long Term Evolution，TD-SCDMA长期演进；TD-SCDMA：Time Division Synchronized Code Division Multiple Access，时分同步码分多址接入)频段传输。则为了与TD LTE系统共存，基站通过高层信令配置slot的结构令其与TD LTE中高层配置的subframe configuration一致，从而避免时隙交叉干扰。
TDD系统中的无线帧配置有七种，如下表5所示。系统中具体使用的Uplink-downlink configuration通过高层信令配置，或者通过DCI format1C通知。为了与TD LTE系统共存，NR基站通过高层信令配置slot的结构与如下七种configuration一致。举一个具体的例子，TD LTE系统通过高层信令配置系统中所使用的Uplink-downlink configuration为configuration#0.则NR基站通过高层信令配置每10ms内slot的结构为：
如果slot的长度为7个OFDM符号，则10ms内包含的20个slot的结构为(DDSSUUUUUUDDSSUUUUUU)，其中S根据TDD系统中使用的special subframe的配置进行具体配置。
如果slot的长度为14个OFDM符号，则10ms内包含的10个slot的结构为(DSUUU DSUUU)，其中S根据TDD系统中使用的special subframe的配置进行具体配置。
表5：TDD系统中的无线帧配置
Figure PCTCN2018092032-appb-000004
基于同一发明构思，本发明实施例中还提供了一种指示时隙结构的装置、一种确定时隙结构的装置，由于这些设备解决问题的原理与一种指示时隙结构的方法、一种确定时隙结构的方法相似，因此这些设备的实施可以参见方法的实施，重复之处不再赘述。
图6为基站侧指示时隙结构的装置结构示意图，如图所示，可以包括：
结构确定模块601，用于在基站确定slot内的结构；
指示模块602，用于在基站通过动态或者半静态的方式向终端指示slot内的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，指示模块进一步用于通过group common PDCCH向终端指示。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，指示模块进一步用于当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，由group common PDCCH中的slot format指示域指示为unknown的区域。
实施中，指示模块进一步用于通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，指示模块进一步用于在slot内的结构有多种可能的组合时，通过高层信令通知终端需要动态通知的M种slot结构，其中，M为自然数。
实施中，指示模块进一步用于通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，指示模块进一步用于在通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，指示模块进一步用于通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
图7为终端侧确定时隙结构的装置结构示意图，如图所示，可以包括：
接收模块701，用于接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
Slot确定模块702，用于终端根据指示的slot结构确定一个或者多个slot的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，接收模块进一步用于接收基站通过group common PDCCH向终端发出的指示。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，由group common PDCCH中的slot format指示域指示为unknown的区域。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，Slot确定模块进一步用于在slot内的结构有多种可能的组合时，根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终 端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，接收模块进一步用于在接收基站通过半静态的方式向终端指示的slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本发明时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
在实施本发明实施例提供的技术方案时，可以按如下方式实施。
图8为基站结构示意图，如图所示，基站中包括：
处理器800，用于读取存储器820中的程序，执行下列过程：
确定slot内的结构；
收发机810，用于在处理器800的控制下接收和发送数据，执行下列过程：
通过动态或者半静态的方式向终端指示slot内的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，基站是通过group common PDCCH向终端指示的。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，由group common PDCCH中的slot format指示域指示为unknown的区域。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，在slot内的结构有多种可能的组合时，基站通过高层信令通知终端需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
其中，在图8中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器800负责管理总线架构和通常的处理，存储器820可以存储处理器800在执行操作时所使用的数据。
图9为终端结构示意图，如图所示，终端包括：
收发机910，用于在处理器900的控制下接收和发送数据，执行下列过程：
接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
处理器900，用于读取存储器920中的程序，执行下列过程：
根据指示的slot结构确定一个或者多个slot的结构。
实施中，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
用于传输上行数据的上行区域；
用于传输下行数据的下行区域；
用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
用于不传输数据的empty区域；
用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
实施中，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
实施中，基站是通过group common PDCCH向终端指示的。
实施中，所述group common PDCCH是对于一组终端有效的PDCCH。
实施中，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
实施中，由group common PDCCH中的slot format指示域指示为unknown的区域。
实施中，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
实施中，在slot内的结构有多种可能的组合时，终端根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构，其中，M为自然数。
实施中，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
实施中，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
实施中，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口930还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。
综上所述，在本发明实施例提供的技术方案中，基站通过group common PDCCH动态指示一个或者多个slot的结构，或者基站通过半静态的方式配置一个或者多个slot的结构。
基站可以通过UE-specific DCI调度终端在指示为unknown的区域内传输数据。
从而提供了一种指示slot结构的方案，用以在未来移动通信系统需要提供更低的网络时延并支持更丰富的业务类型时，使系统支持的slot结构也更加灵活多样。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (62)

  1. 一种指示时隙结构的方法，其特征在于，包括：
    基站确定时隙slot内的结构；
    基站通过动态或者半静态的方式向终端指示slot内的结构。
  2. 如权利要求1所述的方法，其特征在于，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个正交频分复用OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
    用于传输上行数据的上行区域；
    用于传输下行数据的下行区域；
    用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
    用于不传输数据的empty区域；
    用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
  3. 如权利要求2所述的方法，其特征在于，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
    若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
    若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
    若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
  4. 如权利要求1至3任一所述的方法，其特征在于，基站是通过组公共物理下行控制信道group common PDCCH向终端指示的。
  5. 如权利要求4所述的方法，其特征在于，所述group common PDCCH是对于一组终端有效的物理下行控制信道PDCCH。
  6. 如权利要求4所述的方法，其特征在于，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
    一个group common PDCCH包含一个时隙格式slot format指示域指示所述N个slot的结构structure；
    或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
  7. 如权利要求4所述的方法，其特征在于，基站通过在该slot的下行区域中发送的下行控制指示DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
  8. 如权利要求4至7任一所述方法，其特征在于，在slot内的结构有多种可能的组合时，基站通过高层信令通知终端需要动态通知的M种slot结构，其中，M为自然数。
  9. 如权利要求8所述方法，其特征在于，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
  10. 如权利要求8所述方法，其特征在于，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
  11. 如权利要求1所述的方法，其特征在于，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
  12. 一种确定时隙结构的方法，其特征在于，包括：
    接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
    终端根据指示的slot结构确定一个或者多个slot的结构。
  13. 如权利要求12所述的方法，其特征在于，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
    用于传输上行数据的上行区域；
    用于传输下行数据的下行区域；
    用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
    用于不传输数据的empty区域；
    用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
  14. 如权利要求13所述的方法，其特征在于，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
    若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
    若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
    若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
  15. 如权利要求12至14任一所述的方法，其特征在于，基站是通过group common PDCCH向终端指示的。
  16. 如权利要求15所述的方法，其特征在于，所述group common PDCCH是对于一组终端有效的PDCCH。
  17. 如权利要求15所述的方法，其特征在于，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
    一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
    或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
  18. 如权利要求15所述的方法，其特征在于，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
  19. 如权利要求15至18任一所述方法，其特征在于，在slot内的结构有多种可能的组合时，终端根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构。
  20. 如权利要求19所述方法，其特征在于，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
  21. 如权利要求19所述方法，其特征在于，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
  22. 如权利要求12所述的方法，其特征在于，基站通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
  23. 一种指示时隙结构的装置，其特征在于，包括：
    结构确定模块，用于在基站确定slot内的结构；
    指示模块，用于在基站通过动态或者半静态的方式向终端指示slot内的结构。
  24. 如权利要求23所述的装置，其特征在于，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
    用于传输上行数据的上行区域；
    用于传输下行数据的下行区域；
    用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
    用于不传输数据的empty区域；
    用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
  25. 如权利要求24所述的装置，其特征在于，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
    若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
    若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
    若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
  26. 如权利要求23至25任一所述的装置，其特征在于，指示模块进一步用于通过group  common PDCCH向终端指示。
  27. 如权利要求26所述的装置，其特征在于，所述group common PDCCH是对于一组终端有效的PDCCH。
  28. 如权利要求26所述的装置，其特征在于，指示模块进一步用于当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
    一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
    或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
  29. 如权利要求26所述的装置，其特征在于，指示模块进一步用于通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
  30. 如权利要求26至29任一所述装置，其特征在于，指示模块进一步用于在slot内的结构有多种可能的组合时，通过高层信令通知终端需要动态通知的M种slot结构，其中，M为自然数。
  31. 如权利要求30所述装置，其特征在于，指示模块进一步用于通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
  32. 如权利要求30所述装置，其特征在于，指示模块进一步用于在通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
  33. 如权利要求23所述的装置，其特征在于，指示模块进一步用于通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
  34. 一种确定时隙结构的装置，其特征在于，包括：
    接收模块，用于接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
    Slot确定模块，用于终端根据指示的slot结构确定一个或者多个slot的结构。
  35. 如权利要求34所述的装置，其特征在于，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
    用于传输上行数据的上行区域；
    用于传输下行数据的下行区域；
    用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
    用于不传输数据的empty区域；
    用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
  36. 如权利要求35所述的装置，其特征在于，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
    若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
    若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
    若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
  37. 如权利要求34至36任一所述的装置，其特征在于，接收模块进一步用于接收基站通过group common PDCCH向终端发出的指示。
  38. 如权利要求37所述的装置，其特征在于，所述group common PDCCH是对于一组终端有效的PDCCH。
  39. 如权利要求37所述的装置，其特征在于，当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
    一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
    或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
  40. 如权利要求37所述的装置，其特征在于，基站通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot的unknown区域传输，所述数据为上行和/或下行数据。
  41. 如权利要求37至40任一所述装置，其特征在于，Slot确定模块进一步用于在slot内的结构有多种可能的组合时，根据基站通过高层信令发送的通知获知需要动态通知的M种slot结构，其中，M为自然数。
  42. 如权利要求41所述装置，其特征在于，基站通过group common PDCCH发送包含ceil(log2(M))bit的指示信息，通知终端一个或者多个slot的结构。
  43. 如权利要求41所述装置，其特征在于，在基站通过高层信令通知需要动态指示的M种slot结构时，通知每种slot结构内所包含的区域，以及每种区域内包含的OFDM符号数目。
  44. 如权利要求34所述的装置，其特征在于，接收模块进一步用于在接收基站通过半静态的方式向终端指示的slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
  45. 一种指示时隙结构的装置，其特征在于，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    确定slot内的结构；
    收发机，用于在处理器的控制下接收和发送数据，执行下列过程：
    通过动态或者半静态的方式向终端指示slot内的结构。
  46. 如权利要求45所述的装置，其特征在于，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
    用于传输上行数据的上行区域；
    用于传输下行数据的下行区域；
    用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
    用于不传输数据的empty区域；
    用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
  47. 如权利要求46所述的装置，其特征在于，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
    若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
    若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
    若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
  48. 如权利要求45－47任一项所述的装置，其特征在于，收发机是通过group common PDCCH向终端指示的。
  49. 如权利要求48所述的装置，其特征在于，所述group common PDCCH是对于一组终端有效的PDCCH。
  50. 如权利要求48所述的装置，其特征在于，收发机进一步用于当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
    一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
    或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
  51. 如权利要求48所述的装置，其特征在于，由group common PDCCH中的slot format指示域指示为unknown的区域。
  52. 如权利要求48所述的装置，其特征在于，收发机进一步用于通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行 和/或下行数据。
  53. 如权利要求45所述的装置，其特征在于，收发机进一步用于通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
  54. 一种确定时隙结构的装置，其特征在于，包括：
    收发机，用于在处理器的控制下接收和发送数据，执行下列过程：
    接收基站通过动态或者半静态的方式向终端指示的slot内的结构；
    处理器，用于读取存储器中的程序，执行下列过程：
    根据指示的slot结构确定一个或者多个slot的结构。
  55. 如权利要求54所述的装置，其特征在于，slot内包含如下之一或其组合区域的结构，每个区域包含一个或者多个OFDM符号：上行区域、下行区域、不确定区域、empty区域、guard period区域，其中：
    用于传输上行数据的上行区域；
    用于传输下行数据的下行区域；
    用于供基站根据需要进行相关操作、终端侧不做任何假设不在该区域内的OFDM符号上收发数据的不确定区域；
    用于不传输数据的empty区域；
    用于在基站端给出由下行转为上行的保护时间间隔的guard period区域。
  56. 如权利要求55所述的装置，其特征在于，若slot内存在上行区域和下行区域，则上行区域在下行区域之后；
    若slot内存在下行区域和不确定区域，则不确定区域在下行区域之后；
    若slot内存在上行区域和不确定区域，则不确定区域在上行区域之前或者之后；
    若slot内存在上行区域、下行区域以及不确定区域，下行区域出现在上行区域之前，不确定区域在下行区域之后，下行区域之前。
  57. 如权利要求54－56任一项所述的装置，其特征在于，收发机是通过group common PDCCH向终端指示的。
  58. 如权利要求57所述的装置，其特征在于，所述group common PDCCH是对于一组终端有效的PDCCH。
  59. 如权利要求57所述的装置，其特征在于，收发机进一步用于当通过group common PDCCH指示多个slot的结构时，group common PDCCH指示的多个slot的个数N由高层信令通知；且：
    一个group common PDCCH包含一个slot format指示域指示所述N个slot的structure；
    或者，group common PDCCH中包含N个slot format指示域，分别指示所述N个slot的structure。
  60. 如权利要求57所述的装置，其特征在于，由group common PDCCH中的slot format指示域指示为unknown的区域。
  61. 如权利要求57所述的装置，其特征在于，收发机进一步用于通过在该slot的下行区域中发送的DCI调度数据在相同或者不同slot内的unknown区域传输，所述数据为上行和/或下行数据。
  62. 如权利要求54所述的装置，其特征在于，收发机进一步用于通过半静态的方式向终端指示slot内的结构时，通过高层信令配置Nms内每个slot的上下行结构，N为大于0的正整数。
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EP18820868.0A EP3644674A4 (en) 2017-06-23 2018-06-20 METHOD AND APPARATUS FOR INDICATING AND DETERMINING AN INTERVAL STRUCTURE
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