WO2017206740A1 - 一种子帧类型通知、确定方法及装置 - Google Patents

一种子帧类型通知、确定方法及装置 Download PDF

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Publication number
WO2017206740A1
WO2017206740A1 PCT/CN2017/085132 CN2017085132W WO2017206740A1 WO 2017206740 A1 WO2017206740 A1 WO 2017206740A1 CN 2017085132 W CN2017085132 W CN 2017085132W WO 2017206740 A1 WO2017206740 A1 WO 2017206740A1
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Prior art keywords
subframe
control channel
downlink control
preset
type
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PCT/CN2017/085132
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English (en)
French (fr)
Inventor
高雪娟
潘学明
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电信科学技术研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to EP17805685.9A priority Critical patent/EP3468085B1/en
Priority to US16/305,805 priority patent/US20190387521A1/en
Priority to EP23192202.2A priority patent/EP4250628A3/en
Publication of WO2017206740A1 publication Critical patent/WO2017206740A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a subframe type notification, determining method, and apparatus.
  • the existing LTE (Long Term Evolution) FDD (Frequency Division Duplex) system uses a frame structure type 1 (frame structure type 1), and its frame structure is as shown in FIG. 1 .
  • frame structure type 1 frame structure type 1
  • 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, and each subframe is divided into two 0.5ms long slots.
  • the TTI (Transmission Time Interval) of the uplink and downlink data transmission is 1 ms.
  • the TDD (Time Division Duplex) mode has received more and more attention in the context of the increasing bandwidth demand for broadband mobile communications.
  • the uplink and downlink transmissions in the TDD system use the same frequency resources to transmit uplink/downlink signals on different time slots.
  • the existing LTE TDD system uses a frame structure type 2, and its frame structure is as shown in FIG. 2.
  • a radio frame is 10 ms in length and consists of two 5 ms half frames, each of which contains five 1 ms. The length of the sub-frame.
  • Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe.
  • the sub-frames in the TDD frame structure are classified into three types: a downlink sub-frame, an uplink sub-frame, and a special sub-frame.
  • Each special sub-frame consists of a downlink part DwPTS (Downlink Pilot Time Slot) and a protection part GP ( Guard Period, protection slot) and
  • the uplink part UpPTS Uplink Pilot Time slot
  • 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 uplink pilot signals, and cannot transmit uplink traffic or uplink control signaling.
  • TDD supports seven uplink and downlink configurations, as shown in Table 1 below.
  • TD-SCDMA Time Division Synchronized Code Division Multiple Access
  • 4G TD-LTE TD-SCDMA Long Term Evolution, TD-SCDMA long-term
  • the division of the uplink and downlink time slots is static or semi-static.
  • the ratio of the uplink and downlink time slots in Table 1 is determined and maintained according to the cell type and the approximate service ratio. constant.
  • the user plane (U plane) delay of the LTE system is composed of four parts: the base station processing time, the frame alignment time, the TTI time, and the terminal processing time, wherein the frame alignment time is the service arrival time.
  • the waiting time between the opportunity for the service to obtain the air interface transmission.
  • the frame alignment time averages 0.5 ms.
  • the uplink U-plane delay in the case of retransmission is also 4 ms, as shown in FIG.
  • the U-plane delay of the LTE-TDD system is also composed of the base station processing time, the frame alignment time, the TTI time, and the terminal processing time, as shown in FIG. 4 and FIG. 5.
  • the processing time of the base station is 1 ms in the downlink direction and 1.5 ms in the uplink direction.
  • the terminal processing time is 1 ms in the uplink direction and 1.5 ms in the downlink direction.
  • the TTI time is the same as the FDD, which is 1 ms.
  • the frame alignment time is related to the time when the service arrives and the uplink and downlink configuration used by the system. Taking the TDD uplink and downlink configuration 2 as an example, the average alignment processing time of the downlink data is 0.7 ms.
  • the base station completes the transmission processing in the subframe #1, the earliest subframe #3 can be transmitted, and then transmitted to the air interface.
  • the frame alignment time of the frame is 1.5 ms on average, and the frame alignment time of the remaining subframes is 0.5 ms on average. Therefore, the downlink U-plane delay when the system is configured to use TDD uplink and downlink configuration 2 is 4.2 ms, as shown in Table 2 below. Taking the TDD uplink and downlink configuration 5 as an example, since only one subframe #2 can transmit the uplink service, the terminal needs to wait for the subframe #2 of the next radio frame to be transmitted when the pre-transmission processing is completed in the subframe #2.
  • the corresponding frame alignment time is 9.5 ms, and so on, the average frame alignment time of the uplink transmission of the TDD uplink and downlink configuration 5 is 5 ms, so the uplink U plane delay is 8.5 ms on average, as shown in Table 3 below.
  • the average values of the downlink and uplink U-plane delays of the TDD uplink and downlink configurations of the LTE TDD are shown in Table 2 and Table 3. It can be seen that the U-plane delay of the TDD system is greater than the 4 ms U-plane delay of the FDD system.
  • the traditional TTI refers to one subframe defined in the LTE system, that is, the TTI of 1 ms length; the short TTI refers to the TTI whose transmission length is less than 1 ms; it is determined that the uplink channel supporting the transmission using the short TTI includes at least the s-PUCCH (Short Physical Uplink) Control CHannel (short physical uplink control channel) and s-PUSCH (Short Physical Uplink Shared CHannel); the downlink channel supporting short TTI transmission includes at least s-PDCCH (Short Physical Downlink Control Channel) Control channel) and s-PDSCH (Short Physical Downlink Shared Channel).
  • s-PUCCH Short Physical Uplink
  • Control CHannel short physical uplink control channel
  • s-PUSCH Short Physical Uplink Shared CHannel
  • the downlink channel supporting short TTI transmission includes at least s-PDCCH (Short Physical Downlink Control Channel) Control channel) and s-PDSCH (Short Physical Downlink Shared Channel).
  • the TD-LTE system using the existing frame structure can better adapt to the requirements of different uplink and downlink traffic ratios in the network, but the user plane delay performance is not as good as the FDD system, and in some cases, the U plane.
  • the delay is twice as high as the FDD system.
  • ITU International Telecommunication Union
  • the embodiment of the present application provides a seed frame type notification, a determining method, and a device, which are used to enable a terminal to dynamically determine a subframe type, so as to further flexibly change a subframe type, adapt to different service transmission requirements, and improve system transmission efficiency. .
  • the subframe type is determined.
  • the indication information for determining the subframe type is detected in the preset resource, and the subframe type is determined according to the detection result, so that the terminal can dynamically determine the subframe type, so as to further flexibly change the subframe type.
  • the detecting information for determining the type of the subframe is detected in the preset resource, and specifically includes:
  • the determining the subframe type according to the detection result includes:
  • a subframe type of a transmission subframe of the downlink control channel or an N1 of a transmission subframe of the downlink control channel when the downlink control channel is detected.
  • a subframe type of the subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or the downlink control channel The subframe type of the N2 subframes at which the scheduled subframe starts, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the determining the subframe type according to the detection result includes:
  • determining a subframe type of the transmission subframe of the downlink control channel as a downlink subframe or a special subframe or a preset sub-frame The frame type, or the subframe type of the N1 subframes from which the transmission subframe of the downlink control channel starts is a downlink subframe or a special subframe or a preset subframe, or N1 subframes after the transmission subframe of the downlink control channel
  • the subframe type is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the determining the subframe type according to the detection result includes:
  • the downlink control channel When the downlink control channel is not detected in the current subframe, assume a subframe type of the current subframe, or a subframe type of the N1 subframes starting from the current subframe, or after the current subframe a subframe type of the N1 subframes, or a subframe type of the subframe scheduled by the downlink control channel transmitted in the current subframe, or a subframe scheduled by the downlink control channel transmitted in the current subframe.
  • the subframe type of the first N2 subframes is the same as the previous subframe of the current subframe, or is a pre-agreed or configured subframe type, or a subframe type determined according to the TDD uplink and downlink configuration of the terminal.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the detecting the indication information for determining the subframe type in the preset resource includes: receiving the public information or the terminal-specific information in the preset resource.
  • the determining the subframe type according to the detection result includes:
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • the sending the indication information in the preset resource specifically includes:
  • the downlink control channel carries the notification information, and is used to indicate that the terminal determines the subframe type of the transmission subframe of the downlink control channel, or the subframe of the N1 subframes from which the transmission subframe of the downlink control channel starts.
  • a type, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or a subframe scheduled by the downlink control channel starts The subframe type of N2 subframes, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the sending the indication information in the preset resource specifically includes:
  • a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release to indicate that the terminal determines that the subframe type of the transmission subframe of the downlink control channel is a downlink subframe.
  • the subframe type of the N1 subframes after the transmission of the subframe is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the subframe type of the N2 subframes in the preset subframe or the subframe scheduled by the downlink control channel is an uplink subframe or a special subframe or a preset subframe, where N2 is a positive integer.
  • the preset resource is each subframe in each radio frame, or is configured to configure signaling.
  • the sending the indication information in the preset resource specifically: sending, by using the public information or the terminal-specific information, the indication information in the preset resource.
  • the indication information indicates a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • a detecting unit configured to detect, in a preset resource, indication information used to determine a subframe type
  • a determining unit configured to determine a subframe type according to the detection result.
  • the detecting unit is specifically configured to:
  • the determining unit is specifically configured to:
  • a subframe type of a transmission subframe of the downlink control channel or an N1 of a transmission subframe of the downlink control channel when the downlink control channel is detected.
  • a subframe type of the subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or the downlink control channel The subframe type of the N2 subframes at which the scheduled subframe starts, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes a downlink subframe, an uplink subframe, a special subframe, and a preset subframe. One or more of them.
  • the determining unit is specifically configured to:
  • determining a subframe type of the transmission subframe of the downlink control channel as a downlink subframe or a special subframe or a preset sub-frame The frame type, or the subframe type of the N1 subframes from which the transmission subframe of the downlink control channel starts is a downlink subframe or a special subframe or a preset subframe, or N1 subframes after the transmission subframe of the downlink control channel
  • the subframe type is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the determining unit is specifically configured to:
  • the downlink control channel When the downlink control channel is not detected in the current subframe, assume a subframe type of the current subframe, or a subframe type of the N1 subframes starting from the current subframe, or after the current subframe a subframe type of the N1 subframes, or a subframe type of the subframe scheduled by the downlink control channel transmitted in the current subframe, or a subframe scheduled by the downlink control channel transmitted in the current subframe.
  • the subframe type of the first N2 subframes is the same as the previous subframe of the current subframe, or is a pre-agreed or configured subframe type, or a subframe type determined according to the TDD uplink and downlink configuration of the terminal.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the detecting unit is specifically configured to: receive public information or terminal-specific information in a preset resource.
  • the detecting unit is specifically configured to: determine, according to the public information or the terminal-specific information, a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • a determining unit configured to determine a preset resource used for sending the indication information, where the indication information is used to indicate that the terminal determines the subframe type;
  • a sending unit configured to send the indication information in the preset resource.
  • the sending unit is specifically configured to:
  • the downlink control channel carries the notification information, and is used to indicate that the terminal determines the subframe type of the transmission subframe of the downlink control channel, or the subframe of the N1 subframes from which the transmission subframe of the downlink control channel starts.
  • a type, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or a subframe scheduled by the downlink control channel starts The subframe type of N2 subframes, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the sending unit is specifically configured to:
  • a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release transmitting, by the preset resource, a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release, to indicate that the terminal determines that the subframe type of the transmission subframe of the downlink control channel is a downlink subframe.
  • the subframe type of the N1 subframes after the transmission subframe is a downlink subframe or a special subframe.
  • the subframe type of the N2 subframes in the preset subframe or the subframe scheduled by the downlink control channel is an uplink subframe or a special subframe or a preset subframe, where N2 is a positive integer.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the sending unit is specifically configured to send the indication information by using public information or terminal-specific information in the preset resource.
  • the indication information indicates a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • FIG. 1 is a schematic diagram of a frame structure in an LTE FDD system in the background art
  • FIG. 2 is a schematic diagram of a frame structure in an LTE TDD system in the background art
  • FIG. 3 is a schematic diagram of user plane latency components for FDD in the background art
  • FIG. 5 is a schematic diagram of an Uplink User plane latency components for TDD in the background art
  • FIG. 6 is a schematic flowchart diagram of a method for determining a subframe type according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a subframe type notification method according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a subframe type determining apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a subframe type notification apparatus according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another seed frame type determining apparatus according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another seed frame type notification apparatus according to an embodiment of the present disclosure.
  • the embodiment of the present application provides a seed frame type notification, determining method, and apparatus, so that the terminal can dynamically determine the subframe type, so as to further flexibly change the subframe type, adapt to different service transmission requirements, and improve system transmission efficiency. .
  • the technical solution provided by the embodiment of the present application can flexibly change the subframe type of each subframe and perform corresponding transmission, and can reduce the user plane delay on the basis of maintaining service adaptation flexibility.
  • a method for determining a subframe type includes:
  • the indication information used to determine a subframe type is detected in a preset resource.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the detecting information for determining the type of the subframe is detected in the preset resource, and specifically includes:
  • the terminal determines, according to the received DL grant (downlink scheduling information) and/or UL grant (uplink scheduling information), a subframe corresponding to any of the grants, or a subframe starting with the grant, N The subframe type of the subframes, or the subframes of the N subframes subsequent to the subframe corresponding to the grant.
  • the DL grant is carried by the downlink control channel in the format of the DCI (Downlink Control Information) corresponding to the downlink transmission, and the DL grant is carried by using the downlink control channel of the DCI format corresponding to the uplink transmission.
  • the determining the subframe type according to the detection result includes:
  • a subframe type of a transmission subframe of the downlink control channel or an N1 of a transmission subframe of the downlink control channel when the downlink control channel is detected.
  • a subframe type of the subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or the downlink control channel The subframe type of the N2 subframes at which the scheduled subframe starts, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • a subframe type including each of the above N1 subframes or N2 subframes may be expressed by a bitmap or a list.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource. That is, part of the symbols in the subframe are defined for downlink transmission, and some symbols are defined for uplink.
  • the transmission also includes the guard interval between the uplink and the downlink (that is, some symbols are reserved between the uplink and the downlink without transmitting any information, and the preset subframe may also be referred to as a self-contained subframe or a new subframe type or new. Special sub-frames, etc.).
  • the uplink transmission resource in the preset subframe described in this embodiment may transmit uplink data, such as an uplink shared channel, an uplink control channel, and the like;
  • the uplink transmission resource in the defined special subframe can transmit the uplink data, and the special subframe and the preset subframe are also not distinguished, and are collectively referred to as a special subframe or a preset subframe; the related content related to the following is the same Explained here.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • the downlink control channel includes a traditional downlink control channel and a short downlink control channel, and may be based on a PDCCH (Physical Downlink Control Channel) or an Enhanced Physical Downlink Control Channel (EPDCCH). Downlink control channel.
  • PDCCH Physical Downlink Control Channel
  • EPDCCH Enhanced Physical Downlink Control Channel
  • the determining, by using the preset resource, the indication information used to determine the subframe type specifically: receiving public information or terminal-specific information in the preset resource.
  • the determining the subframe type according to the detection result includes:
  • the subframes may be notified of the special subframes or the preset subframes in a period according to the public information or the terminal-specific information (the remaining subframes are determined according to the TDD uplink and downlink configuration. Frame type for transmission).
  • This method is relatively simple. It can be assumed that the subframes of the subframes are configured as special or preset subframes, and the subframe types of the other subframes are configured according to the TDD uplink and downlink configuration (the TDD uplink and downlink configuration here can be configured for system information, It can be determined for the reference TDD uplink and downlink configuration; of course, the subframe type of each subframe in the preset period can also be notified by public information or terminal-specific information.
  • Manner 1 The terminal detects a DL grant in each subframe in the preset subframe set (the DL grant further includes a downlink control channel indicating downlink SPS resource release, the same below), when detecting the terminal Determining, according to the notification information carried in the DL grant, a subframe type used by the terminal in the transmission subframe of the DL grant, or a subframe used by the N1 subframes starting from the transmission subframe of the DL grant. a frame type, or a subframe type used by N1 subframes after the transmission subframe of the DL grant; wherein N1 is a positive integer value greater than or equal to 1;
  • the subframe type includes a downlink subframe, an uplink subframe, a special subframe, a preset subframe, or a combination thereof, or the subframe type includes a downlink subframe, a special subframe, and a preset subframe.
  • the subframe type includes a downlink subframe, a special subframe, and a preset subframe.
  • the notification information is specifically used to indicate a type of a subframe, for example, indicating one of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe, or indicating a downlink subframe, a special subframe, and a preset subframe.
  • a type of the frame in this case, the subframe type of each subframe in the subframe or the subframe set corresponding to the DL grant is the subframe type indicated by the notification information; for example, the notification information is indicated by If the subframe type is a downlink subframe, determine that the subframe type used by the transmission subframe of the DL grant is a downlink subframe, or determine N1 subframes of the transmission subframe of the DL grant or the DL grant.
  • the subframe type used by the N1 subframes after the transmission of the subframe is a downlink subframe. For example, if the notification information indicates that the subframe type is a preset subframe, the subframe used by the transmission subframe of the DL grant is determined.
  • the information may be 1-bit information.
  • the DL grant transmits the N1 subframes of the subframe or the subframes of the N1 subframes after the DL grant transmission subframe.
  • the type is ⁇ downstream subframe, downlink subframe ⁇ , and when the state of the notification information is "1", indicating the second subframe type combination, then the DL grant transmits the subframe after the N1 subframe or the DL grant transmission subframe
  • the subframe types of the N1 subframes are ⁇ downstream subframe, preset subframe ⁇ .
  • the terminal assumes the subframe type used by the transmission subframe of the DL grant, or the subframe type used by the N1 subframes of the transmission subframe of the DL grant, Or the subframe type used by the N1 subframes after the transmission subframe of the DL grant is the same as the previous subframe of the transmission subframe of the DL grant, or is a predetermined subframe type (for example, always assume It is a downlink subframe, or is always assumed to be an uplink subframe, or is always assumed to be a special subframe, or is always assumed to be a preset subframe; or, in order to configure the TDD uplink and downlink according to the terminal on the current carrier.
  • the TDD uplink and downlink configuration is system information configuration or reference TDD uplink and downlink configuration) determined subframe type;
  • the DL grant is transmitted in the LTE legacy control region (that is, transmitted on the first K symbols in one subframe, may be represented as a transmission PDCCH or sPDCCH), or transmitted in a short TTI search space.
  • Manner 2 The terminal detects a UL grant in each of the preset subframe sets, and when the UL grant of the terminal is detected, determines, according to the notification information carried in the UL grant, that the terminal corresponds to the UL grant. a subframe (that is, a subframe in which the data transmission scheduled by the UL grant is located) or a subframe type of N2 subframes at which the corresponding subframe starts;
  • the subframe type includes one of a downlink subframe, an uplink subframe, a special subframe, a preset subframe, or a combination thereof, or the subframe type includes one of an uplink subframe, a special subframe, and a preset subframe, or Combination
  • the notification information is specifically used to indicate one type of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe, or indicate one type of a downlink subframe, a special subframe, and a preset subframe.
  • the subframe type of each subframe in the subframe or the subframe set corresponding to the UL grant is the subframe type indicated by the notification information; for example, the notification information indicates that the subframe type is an uplink subframe.
  • the subframe type used by the subframe corresponding to the UL grant is an uplink subframe, or determining that the subframe type used by the N2 subframes starting from the subframe corresponding to the UL grant is an uplink subframe a frame, and the foregoing notification information indicates that the subframe type is a preset subframe, determining that the subframe type used by the subframe corresponding to the UL grant is a preset subframe, or determining a sub-subject corresponding to the UL grant
  • the subframe types used by the N2 subframes at the beginning of the frame are all preset subframes.
  • each subframe type combination includes a specific subframe type of each of the N2 subframes; for example, high layer signaling pre-configuration or advance
  • the notification information may be 1-bit information, and when the status of the notification information is “0”, the first subframe type combination is indicated, and the subframe types of the N2 subframes starting from the subframe corresponding to the UL grant are, in order, an uplink subframe.
  • the second subframe type combination is indicated, and the subframe type of the N2 subframes starting from the subframe corresponding to the UL grant is ⁇ uplink subframe, preset frame ⁇ .
  • the terminal assumes that the subframe corresponding to the UL grant or the subframe type of the N2 subframes corresponding to the start of the corresponding subframe is the same as the subframe corresponding to the UL grant.
  • the subframe corresponding to the UL grant or the N2 subframes at which the corresponding subframe starts is a predetermined subframe type (for example, it is always assumed to be a downlink subframe, or is always assumed to be an uplink subframe) a frame, or assuming a special subframe, or assuming that the subframe type of the subframe corresponding to the UL grant or the N2 subframes of the corresponding subframe starts is a TDD according to the terminal on the current carrier.
  • the subframe type determined by the uplink and downlink configuration (the TDD uplink and downlink configuration is system information configuration or reference TDD uplink and downlink configuration).
  • the UL grant is transmitted in an LTE legacy control region (ie, transmitted on the first K symbols in one subframe, may be represented as a transport PDCCH or sPDCCH), or transmitted in a short TTI search space.
  • the terminal detects a DL grant in each subframe in the preset subframe set, and when detecting the DL grant of the terminal, determines a subframe type used by the terminal in the transmission subframe of the DL grant, or The subframe type used by the N1 subframes at the beginning of the transmission subframe of the DL grant, or the subframe type used by the N1 subframes after the transmission subframe of the DL grant, is a downlink subframe; or, the terminal is Determining a DL grant in each of the preset subframe sets, and determining a subframe type used by the terminal in the transmission subframe of the DL grant, or the DL grant, when the DL grant of the terminal is detected
  • the subframe type used for transmitting the N1 subframes at the beginning of the subframe, or the subframe type used by the N1 subframes after the transmission subframe of the DL grant is a special subframe or a preset subframe; N1 is a positive integer value greater than or equal to 1;
  • the terminal assumes that the transmission subframe of the DL grant or the N1 subframes of the transmission subframe of the DL grant or the N1 subframes after the transmission subframe of the DL grant.
  • the subframe type is the same as its previous subframe, or it is assumed that the transmission subframe of the DL grant or the N1 subframes of the transmission subframe of the DL grant or the N1 subframes after the transmission subframe of the DL grant a predetermined subframe type (for example, always assumed to be a downlink subframe, or always assumed to be an uplink subframe, or always assumed to be a special subframe, or always assumed to be a preset subframe), or, assuming
  • the subframe type of the transmission subframe of the DL grant or the N1 subframes of the transmission subframe of the DL grant or the subframes of the N1 subframes after the transmission subframe of the DL grant is according to the TDD of the terminal on the current carrier.
  • the DL grant is transmitted in the LTE legacy control region (that is, transmitted on the first K symbols in one subframe, may be represented as a transmission PDCCH or sPDCCH), or transmitted in a short TTI search space.
  • Manner 4 The terminal detects a UL grant in each subframe in the preset subframe set, and when detecting the UL grant of the terminal, determines a subframe corresponding to the UL grant (that is, data scheduled by the UL grant)
  • the subframe type of the N2 subframes in which the subframe in which the transmission is transmitted or the corresponding subframe is the uplink subframe; or the terminal detects the UL grant in each subframe in the preset subframe set, when detecting the
  • the subframe type of the N2 subframes corresponding to the subframe corresponding to the UL grant or the corresponding subframe is a special subframe or a preset subframe; where N2 is greater than or equal to 1.
  • the terminal assumes that the subframe corresponding to the UL grant or the subframe type of the N2 subframes corresponding to the start of the corresponding subframe is the same as the previous subframe, or
  • the subframe corresponding to the UL grant or the N2 subframes at which the corresponding subframe starts is a predetermined subframe type (for example, it is always assumed to be a downlink subframe, or is always assumed to be an uplink subframe, or is always assumed to be a special subframe.
  • the frame is always assumed to be a preset subframe, or the subframe type of the N2 subframes in which the subframe corresponding to the UL grant or the corresponding subframe starts is the current carrier according to the terminal.
  • the subframe type determined by the TDD uplink and downlink configuration (the TDD uplink and downlink configuration is system information configuration or reference TDD uplink and downlink configuration);
  • the UL grant is transmitted in an LTE legacy control region (ie, transmitted on the first K symbols in one subframe, may be represented as a transport PDCCH or sPDCCH), or transmitted in a short TTI search space.
  • the preset subframe set is configured as each subframe in a radio frame (including an uplink subframe determined according to a TDD uplink and downlink configuration), or the preset subframe set.
  • the configuration signaling may be transmitted in a traditional control region in the LTE system (for example, carried in a DL grant or a UL grant transmitted in the first K symbols in one subframe, where the DL grant or UL grant may be
  • the UE User Equipment
  • the configuration signaling is high layer signaling or broadcast signaling.
  • the determining, according to the detection result, determining a subframe type specifically includes:
  • a subframe type of a transmission subframe of the downlink control channel or an N1 of a transmission subframe of the downlink control channel when the downlink control channel is detected.
  • a subframe type of the subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or the downlink control channel The subframe type of the N2 subframes at which the scheduled subframe starts, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • a subframe type including each of the above N1 subframes or N2 subframes may be expressed by a bitmap or an enumeration manner.
  • determining, according to the detection result, a subframe type specifically:
  • a subframe type of the transmission subframe of the downlink control channel is a downlink subframe or a special subframe or a preset subframe, or a sub-frame of the N1 subframes starting from a transmission subframe of the downlink control channel
  • the subframe type is a downlink subframe or a special subframe or a preset subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel is a downlink subframe or a special subframe or a preset subframe, where , N1 is a positive integer;
  • the determining the subframe type according to the detection result further includes:
  • the downlink control channel When the downlink control channel is not detected in the current subframe, assume a subframe type of the current subframe, or a subframe type of the N1 subframes starting from the current subframe, or after the current subframe a subframe type of the N1 subframes, or a subframe type of the subframe scheduled by the downlink control channel transmitted in the current subframe, or a subframe scheduled by the downlink control channel transmitted in the current subframe.
  • the subframe type of the first N2 subframes is the same as the previous subframe of the current subframe, or is a pre-agreed or configured subframe type, or a subframe type determined according to the TDD uplink and downlink configuration of the terminal.
  • Manner 5 Determine which subframes are special subframes or preset subframes in one cycle according to public information or terminal-specific information.
  • the public information or the terminal-specific information may be transmitted on a predetermined time-frequency domain resource; for example, transmission in an LTE legacy control region (ie, transmission on the first K symbols in one subframe), or a specific resource in a predetermined subframe.
  • a predetermined time-frequency domain resource for example, transmission in an LTE legacy control region (ie, transmission on the first K symbols in one subframe), or a specific resource in a predetermined subframe.
  • the above public information or terminal-specific information may be transmitted in each subframe or in a partial subframe according to a specific period;
  • the special subframe is a subframe in which a partial symbol is used for downlink transmission, a partial symbol is used for uplink transmission, and a partial symbol is used as a guard interval;
  • the division of the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe is pre-agreed or configured signaling.
  • the configuration signaling when adopted, it may be notified in the DL grant or the UL grant, or is notified by the high layer signaling, or broadcast signaling.
  • the configuration signaling directly informs one of a plurality of pre-agreed downlink transmission parts, an uplink transmission part, and a protection interval part, for example, pre-arranging the first division manner as the first to sixth symbols.
  • the 7th and 9th symbols are guard intervals
  • the 9th to 14th symbols are uplink
  • the second is 1st to 9th symbols
  • the 10th symbol is guard interval, 11th to 14th.
  • the symbol is uplink
  • the third division mode is that the first to fourth symbols are downlink
  • the fifth and sixth symbols are guard intervals
  • the seventh to fourth symbols are uplink
  • configuration signaling can notify one of them as a special subframe.
  • the number and position of the symbols in the upper part, and the remaining part is the guard interval part.
  • the way of the base station side is similar to the above.
  • a method for notifying a subframe type including:
  • S201 Determine a preset resource used for sending the indication information, where the indication information is used to instruct the terminal to determine a subframe type.
  • the sending the indication information in the preset resource specifically includes:
  • the downlink control channel carries the notification information, and is used to indicate that the terminal determines the subframe type of the transmission subframe of the downlink control channel, or the subframe of the N1 subframes from which the transmission subframe of the downlink control channel starts.
  • Type, or N1 subframes after the transmission subframe of the downlink control channel a subframe type, or a subframe type of a subframe scheduled by the downlink control channel, or a subframe type of N2 subframes starting from a subframe scheduled by the downlink control channel, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the sending the indication information in the preset resource specifically includes:
  • a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release to indicate that the terminal determines that the subframe type of the transmission subframe of the downlink control channel is a downlink subframe.
  • the subframe type of the N1 subframes after the transmission of the subframe is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the subframe type of the N2 subframes in the preset subframe or the subframe scheduled by the downlink control channel is an uplink subframe or a special subframe or a preset subframe, where N2 is a positive integer.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the sending the indication information in the preset resource specifically: sending, by using the public information or the terminal-specific information, the indication information in the preset resource; wherein the indication information indicates a preset period Special sub-frame or preset sub-frame.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is a high layer signaling, or For broadcast signaling.
  • Embodiment 1 (corresponding to the foregoing mode 1):
  • the TDD uplink and downlink configuration of the terminal is the configuration 1 in Table 1.
  • the terminal needs to detect the DL grant in each subframe in a radio frame by default, and it is assumed that the DL is detected in the subframe 2.
  • Grant, and the subframe type indicated by the indication field in the DL grant is a downlink subframe, and the terminal transmits the subframe in the subframe 2 according to the downlink subframe (although the subframe is configured as an uplink subframe according to the existing TDD uplink and downlink).
  • the uplink subframe 2 is dynamically changed to the downlink subframe, otherwise (ie, if the DL grant is not detected), the subframe 2 is determined to be the uplink subframe according to the TDD uplink and downlink configuration in Table 1, for example,
  • the indication field in the DL grant indicates a pre-configured or agreed combination of subframe types of N1 subframes, for example, in units of 10 subframes, and a subframe type in which 10 subframes are pre-arranged or configured as shown in Table 4 below (where S can Indicates a special subframe, or may also represent a preset subframe.
  • the indication field in the DL grant indicates "01", indicating that the subframe of the N1 subframes starting from subframe 2 is determined according to the combination of the second seed frame types in Table 4.
  • Frame type, or indeed The subframe type of the N1 subframes after the subframe 2; or the DL grant may also indicate the subframe type of the N1 subframes starting from the subframe 2, or the subframe type of the N1 subframes after the subframe 2, where the subframe type
  • the N1 subframes after the frame 2 may be subframes that are consecutive to the subframe 2, or refer to discontinuous subframes, such as N1 subframes in the next radio frame.
  • Embodiment 2 (corresponding to the second method): the TDD uplink and downlink configuration of the terminal is the configuration 1 in Table 1.
  • the terminal needs to detect the UL grant in each subframe in one radio frame by default, and assumes that the UL grant is detected in the subframe 5.
  • the UL grant is used to schedule the uplink transmission in the subframe 9, and the subframe type indicated by the indication field in the UL grant is a special subframe or a preset subframe, and the terminal follows the special subframe in the subframe 9.
  • the preset subframe is transmitted (although the subframe is configured as a downlink subframe according to the existing TDD uplink and downlink), so that the downlink subframe is dynamically changed to the subframe including the uplink resource, otherwise (if no UL grant is detected) And determining, for example, the subframe 9 is a downlink subframe or the default subframe 9 is a downlink subframe according to the TDD uplink and downlink configuration; or the indication field in the UL grant indicates a pre-configured or agreed subframe type combination of N2 subframes.
  • a subframe type in which 10 subframes are pre-arranged or configured is as shown in Table 5 (where S can represent a special subframe or a preset subframe), and the indication field in the UL grant.
  • determining the subframe type of the N2 subframes starting from the subframe 9, or determining the subframe type of the N2 subframes after the subframe 9; or, the UL grant may also The subframe type of the N2 subframes indicating the start of the subframe 9, or the subframe type of the N2 subframes after the subframe 9, wherein the N2 subframes after the subframe 9 may be subframes consecutive to the subframe 9, or A discontinuous subframe, such as N2 subframes in the next radio frame.
  • Embodiment 3 (corresponding to the third method): the TDD uplink and downlink configuration of the terminal is the configuration 1 in Table 1.
  • the terminal needs to detect the DL grant in each subframe in a radio frame by default, and it is assumed that the DL grant is detected in the subframe 2.
  • the terminal transmits in the subframe 2 according to the downlink subframe or the special subframe or the preset subframe (although the subframe is configured as an uplink subframe according to the existing TDD uplink and downlink), thereby dynamically implementing the uplink subframe 2 Change to a sub-frame containing the downlink resource, otherwise (ie, if no DL grant is detected), determine subframe 2 as an uplink subframe according to the TDD uplink and downlink configuration in Table 1, or always determine subframe 2 as an uplink according to the convention.
  • Subframe if the terminal determines that the subframe 2 is a special subframe or a preset subframe, it is assumed to be transmitted according to a predefined special subframe or a preset subframe structure, for example, a predefined CP (Cyclic Prefix)
  • the symbols from the sixth symbol to the downlink are the downlink, the middle two symbols are the guard interval (GP), and the last six symbols are the uplink, or the DL grant further carries the downlink (DL) indicating the special subframe or the preset subframe.
  • GP and uplink (UL) Information shown for example, wherein the specific symbol only indicates the number of two domains, a domain may itself remaining inferred or display indicative of the division of the three domains.
  • Embodiment 4 (corresponding to the fourth method):
  • the TDD uplink and downlink configuration of the terminal is the configuration 1 in Table 1.
  • the terminal needs to detect the UL grant in each subframe in one radio frame by default, and assumes that the UL grant is detected in the subframe 5.
  • the UL grant is used to schedule uplink transmission in the subframe 9, and the terminal determines that the subframe 9 is an uplink subframe or the terminal determines that the subframe 9 is a special subframe or a preset subframe, otherwise (if no UL grant is detected)
  • the subframe 9 is determined to be a downlink subframe or the subframe 9 is always determined to be a downlink subframe; if the terminal determines that the subframe 9 is a special subframe or a preset subframe, it is assumed to be according to a predefined Special subframe or preset subframe structure transmission, for example, for the conventional CP, the first symbol to the sixth symbol are downlink, the middle two symbols are guard intervals (GP), the last six symbols are uplink, or the UL
  • the grant further carries indication information indicating downlink (DL), GP, and uplink (UL) division in the special subframe or the preset subframe, for example, indicating only the specific symbol number of the two domains,
  • a subframe set may also be configured in advance, and the subframe in the set is checked.
  • the DL grant or the UL grant is measured.
  • the subframe set ⁇ #1, 3, 4, 6, 8, 9 ⁇ is pre-arranged or configured, that is, the indication subframe type can be detected in these subframes.
  • the scheduled subframe corresponding to the subframe in the subframe may change the subframe type, and the subframe type of the remaining subframes cannot be changed.
  • the default is the subframe type determined by the TDD uplink and downlink configuration, or the default is the downlink; the foregoing subframe set may be fixed, for example, pre-agreed, or semi-static, such as high-level signaling notification, of course.
  • the grant, or the DCI may also be transmitted in the short TTI search space.
  • the DL grant/UL grant may be determined in which subframes, according to the indication therein, the DCI may be For all or some of the terminals, the terminal may be exclusive. If the foregoing subframe set is broadcasted, the terminal first obtains the broadcast information according to the configuration information such as the broadcast period, and then obtains which subframes to detect the DL grant. /UL grant;
  • the indication information of the grant received subsequently for the overlapping subframe will be overwritten.
  • the indication information of the grant is received, that is, for the same subframe, always works with the subframe type indicated by the latest received grant indicating its subframe type.
  • Embodiment 4 (corresponding manner 5):
  • the terminal receives a broadcast notification or DCI according to a specific period, and the broadcast channel or DCI indicates a subframe type in one cycle, for example, indicating a radio frame or a next radio frame in which the broadcast or DCI transmission is located.
  • Which subframes are special subframes or preset subframes, where P special subframes or preset subframe groups may be pre-arranged or configured, for example, a special subframe or a preset subframe in the set 1 is a radio frame.
  • the special subframe or the preset subframe in the set 2 is a subframe 1/3/6/8 in a radio frame
  • a special subframe or a preset subframe in the set 3 is a subframe 1/3/4 in one radio frame
  • a special subframe in the set 4 or a pre-frame Let the subframe be 1/3/4/6/8/9 in a radio frame, the broadcast or DCI indicating one of the sets to the terminal, or the type of each subframe in a radio frame by using a bitmap, or Directly indicating the subframe number of the special subframe or the preset subframe, and of course, indicating the uplink and downlink partition of the special subframe or the preset subframe, or the uplink and downlink partition of the special subframe or the preset subframe by default; If the DCI is notified by the DCI, the DCI can be transmitted in the traditional control region of the LTE system, and the terminal first detects the traditional control region in the first downlink subframe, and after obtaining the DCI, determining, according
  • the frame or the preset subframe, or the DCI may also be transmitted in the short TTI search space.
  • the subsequent subframes may be determined according to the indications as subsequent subframes or preset sub-frames.
  • Frame, the above DCI can be shared by all or part of the terminal, also The terminal may be specific to the terminal; if it is notified by broadcast, the terminal first obtains the broadcast information according to the configuration information such as the broadcast period, and then obtains which subsequent subframes are special subframes or preset subframes.
  • a subframe type determining apparatus provided by an embodiment of the present application includes:
  • the detecting unit 11 is configured to detect, in the preset resource, indication information for determining a subframe type
  • the determining unit 12 is configured to determine a subframe type according to the detection result.
  • the detecting unit is specifically configured to:
  • the determining unit is specifically configured to:
  • a subframe type of a transmission subframe of the downlink control channel or an N1 of a transmission subframe of the downlink control channel when the downlink control channel is detected.
  • a subframe type of the subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or the downlink control channel The subframe type of the N2 subframes at which the scheduled subframe starts, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the determining unit is specifically configured to:
  • determining a subframe type of the transmission subframe of the downlink control channel as a downlink subframe or a special subframe or a preset sub-frame The frame type, or the subframe type of the N1 subframes from which the transmission subframe of the downlink control channel starts is a downlink subframe or a special subframe or a preset subframe, or N1 subframes after the transmission subframe of the downlink control channel
  • the subframe type is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the determining unit is specifically configured to:
  • the downlink control channel When the downlink control channel is not detected in the current subframe, assume a subframe type of the current subframe, or a subframe type of the N1 subframes starting from the current subframe, or after the current subframe a subframe type of the N1 subframes, or a subframe type of the subframe scheduled by the downlink control channel transmitted in the current subframe, or a subframe scheduled by the downlink control channel transmitted in the current subframe.
  • the subframe type of the first N2 subframes is the same as the previous subframe of the current subframe, or is a pre-agreed or configured subframe type, or a subframe type determined according to the TDD uplink and downlink configuration of the terminal.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the detecting unit is specifically configured to: receive public information or terminal-specific information in a preset resource.
  • the detecting unit is specifically configured to: determine, according to the public information or the terminal-specific information, a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • a subframe type notification apparatus provided by an embodiment of the present application includes:
  • a determining unit 21 configured to determine a preset resource for sending indication information, where the indication information is used to indicate that the terminal determines the subframe type;
  • the sending unit 22 is configured to send the indication information in the preset resource.
  • the sending unit is specifically configured to:
  • the downlink control channel carries the notification information, and is used to indicate that the terminal determines the subframe type of the transmission subframe of the downlink control channel, or the subframe of the N1 subframes from which the transmission subframe of the downlink control channel starts.
  • a type, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or a subframe scheduled by the downlink control channel starts The subframe type of N2 subframes, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the sending unit is specifically configured to:
  • a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release to indicate that the terminal determines that the subframe type of the transmission subframe of the downlink control channel is a downlink subframe.
  • the subframe type of the N1 subframes after the transmission of the subframe is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the subframe type of the N2 subframes in the preset subframe or the subframe scheduled by the downlink control channel is an uplink subframe or a special subframe or a preset subframe, where N2 is a positive integer.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the sending unit 22 is specifically configured to: send the indication information by using public information or terminal-specific information in the preset resource.
  • the indication information indicates a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • a subframe type determining apparatus provided by an embodiment of the present application includes:
  • the processor 600 is configured to read a program in the memory 620 and perform the following process:
  • the subframe type is determined.
  • the processor 600 when the processor 600 detects the indication information used to determine the subframe type in the preset resource, specifically, the processor is configured to:
  • the processor 600 determines the subframe type according to the detection result, it is specifically used to:
  • a subframe type of a transmission subframe of the downlink control channel or an N1 of a transmission subframe of the downlink control channel when the downlink control channel is detected.
  • a subframe type of the subframe, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or the downlink control channel The subframe type of the N2 subframes at which the scheduled subframe starts, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the processor 600 determines the subframe type according to the detection result, it is specifically used to:
  • determining a subframe type of the transmission subframe of the downlink control channel as a downlink subframe or a special subframe or a preset sub-frame The frame type, or the subframe type of the N1 subframes from which the transmission subframe of the downlink control channel starts is a downlink subframe or a special subframe or a preset subframe, or N1 subframes after the transmission subframe of the downlink control channel
  • the subframe type is a downlink subframe or a special subframe or a preset subframe, where N1 is a positive integer;
  • the processor 600 determines the subframe type according to the detection result, it is specifically used to:
  • the child of the current subframe is assumed a frame type, or a subframe type of the N1 subframes starting from the current subframe, or a subframe type of the N1 subframes after the current subframe, or a downlink control channel transmitted in the current subframe a subframe type of a subframe, or a subframe type of N2 subframes starting with a subframe scheduled by a downlink control channel transmitted in the current subframe, same as a previous subframe of the current subframe, or The subframe type that is pre-agreed or configured, or the subframe type determined according to the TDD uplink and downlink configuration of the terminal.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the processor 600 when the processor 600 detects the indication information for determining the subframe type in the preset resource, the processor 600 is specifically configured to: receive the public information or the terminal-specific information in the preset resource.
  • the processor 600 when determining the subframe type according to the detection result, is specifically configured to: determine, according to the public information or the terminal-specific information, a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • the transceiver 610 is configured to receive and transmit data under the control of the processor 600.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • 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 610 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 630 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 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • another seed frame type notification apparatus provided by an embodiment of the present application includes:
  • the processor 500 is configured to read a program in the memory 520 and perform the following process:
  • the indication information is sent by the transceiver 510 in the preset resource.
  • the processor 500 when the processor 500 sends the indication information in the preset resource by using the transceiver 510, the processor is specifically configured to:
  • the downlink control channel carries the notification information, and is used to indicate that the terminal determines the subframe type of the transmission subframe of the downlink control channel, or the subframe of the N1 subframes from which the transmission subframe of the downlink control channel starts.
  • a type, or a subframe type of the N1 subframes after the transmission subframe of the downlink control channel, or a subframe type of the subframe scheduled by the downlink control channel, or a subframe scheduled by the downlink control channel starts The subframe type of N2 subframes, where N1 and N2 are positive integers.
  • the notification information notifies one of a plurality of types of subframes that are pre-configured or agreed, or the notification information notifies a combination of a plurality of combinations of subframe types that are pre-configured or agreed, wherein each subframe type combination Contains a specific subframe type for each of the plurality of subframes.
  • the subframe type includes one or more of a downlink subframe, an uplink subframe, a special subframe, and a preset subframe.
  • the processor 500 when the processor 500 sends the indication information in the preset resource by using the transceiver 510, the processor is specifically configured to:
  • a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release transmitting, by the preset resource, a downlink control channel for scheduling downlink transmission or a downlink control channel indicating downlink SPS resource release, to indicate that the terminal determines that the subframe type of the transmission subframe of the downlink control channel is a downlink subframe.
  • the subframe type of the N1 subframes after the transmission subframe is a downlink subframe or a special subframe.
  • the subframe type of the N2 subframes in the preset subframe or the subframe scheduled by the downlink control channel is an uplink subframe or a special subframe or a preset subframe, where N2 is a positive integer.
  • the preset resource is each subframe in each radio frame, or is a set of subframes configured with signaling.
  • the sending, by the processor 510, the indication information in the preset resource by the transceiver 510 specifically: sending, by using the public information or the terminal-specific information, the indication information in the preset resource.
  • the indication information indicates a special subframe or a preset subframe in a preset period.
  • the downlink transmission part, the uplink transmission part, and the protection interval part included in the special subframe or the preset subframe are pre-agreed or notified by configuration signaling.
  • the preset subframe is a subframe that includes at least an uplink transmission resource and a downlink transmission resource.
  • the configuration signaling is carried in a downlink control channel, or is high layer signaling, or is broadcast signaling.
  • the transceiver 510 is configured to receive and transmit data under the control of the processor 500.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520.
  • 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 510 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 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the processor described in the above embodiment of the present application may be a central buried device (CPU), an application specific integrated circuit (ASIC), or a field programmable gate array (Field). -Programmable Gate Array, FPGA) or Complex Programmable Logic Device (CPLD).
  • CPU central buried device
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • the technical solution provided by the embodiment of the present application determines, according to the received DL grant and/or the UL grant, the subframe corresponding to the grant or the N sub-frames corresponding to the grant corresponding to the grant.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application 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 and optical storage, etc.) including computer usable program code.
  • 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.

Abstract

本申请公开了一种子帧类型通知、确定方法及装置,用以使得终端可以动态确定子帧类型,以便进一步的用以灵活改变子帧类型,适应不同的业务传输需求,提高系统传输效率。本申请提供的一种子帧类型确定方法包括:在预设资源中检测用于确定子帧类型的指示信息;根据检测结果,确定子帧类型。

Description

一种子帧类型通知、确定方法及装置
本申请要求在2016年5月31日提交中国专利局、申请号为201610378041.3、发明名称为“一种子帧类型通知、确定方法及装置”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
本申请涉及通信技术领域,尤其涉及一种子帧类型通知、确定方法及装置。
背景技术
现有LTE(Long Term Evolution,长期演进)FDD(Frequency Division Duplex,频分双工)系统使用帧结构类型1(frame structure type 1),其帧结构如图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,每个子帧分为两个0.5ms长的时隙。上行和下行数据发送的TTI(Transmission Time Interval,传输时间间隔)时长为1ms。
作为两大基本双工制式之一的TDD(Time Division Duplex,时分双工)模式,在宽带移动通信对带宽需求不断增长的背景下,受到了越来越多的关注。TDD系统中上行和下行传输使用相同的频率资源,在不同的时隙上传输上行/下行信号。现有LTE TDD系统使用针结构类型2(frame structure type 2),其帧结构如图2所示,一个无线帧为10ms长度,由两个5ms半帧构成,每个半帧中包含5个1ms长度的子帧。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。TDD帧结构中的子帧分为三类:下行子帧、上行子帧和特殊子帧,每个特殊子帧由下行部分DwPTS(Downlink Pilot Time Slot,下行导频时隙),保护部分GP(Guard Period,保护时隙)和 上行部分UpPTS(Uplink Pilot Time slot,行导频时隙)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仅传输随机接入和上行导频信号,不能传输上行业务或上行控制信令。TDD支持7种上下行配置方式,如下面的表1所示。在常见的TDD系统中,包括3G的TD-SCDMA(Time Division Synchronized Code Division Multiple Access,时分同步码分多址接入)系统和4G的TD-LTE(TD-SCDMA Long Term Evolution,TD-SCDMA长期演进)系统,上行和下行时隙的划分是静态或半静态的,通常的做法是在网络规划过程中根据小区类型和大致的业务比例确定表1中的一种上下行时隙比例划分并保持不变。
表1:上下行配置(Uplink-downlink configurations)
Figure PCTCN2017085132-appb-000001
关于现有LTE FDD/TDD系统的用户面延时介绍如下:
根据3GPP TR36.912附录B.2章节的定义,LTE系统的用户面(U平面)时延由基站处理时间、帧对齐时间、TTI时间和终端处理时间四部分构成,其中帧对齐时间为业务到达至业务能够获得空口子帧传输机会之间的等待时间。
以LTE-FDD下行传输为例,由于FDD系统每个子帧均有下行传输机会,帧对齐时间平均为0.5ms。基站处理时间在下行方向时为1ms,上行方向时为1.5ms;终端处理时间在上行方向时为1ms,下行方向时为1.5ms。因此在不考虑HARQ(Hybrid Automatic Repeat Request,混合自动重复请求)重传情况下,LTE-FDD下行U平面延时=基站处理时间1ms+帧对齐时间0.5ms+TTI时间1ms+终端处理时间1.5ms,共4ms。相似的,LTE-FDD系统不考虑HARQ 重传情况下的上行U平面延时也为4ms,如图3所示。
LTE-TDD系统的U平面时延同样由基站处理时间、帧对齐时间、TTI时间和终端处理时间四部分构成,如图4、图5所示。其中基站处理时间在下行方向为1ms,上行方向为1.5ms;终端处理时间在上行方向为1ms,下行方向为1.5ms。TTI时间与FDD相同,均为1ms,帧对齐时间与业务到达的时间和系统所使用的上下行配置有关。以TDD上下行配置2为例,下行数据的平均对齐处理时间为0.7ms,其中基站若在子帧#1中完成发送端处理,则最早到子帧#3才能进行发送,则发射到空口子帧的帧对齐时间平均为1.5ms,其余子帧的帧对齐时间平均为0.5ms。因此,系统被配置使用TDD上下行配置2时的下行U平面延时为4.2ms,如下面的表2所示。再以TDD上下行配置5为例,由于仅有一个子帧#2可以传输上行业务,导致终端在子帧#2内完成发送前处理时需要等待下一个无线帧的子帧#2才能发送,对应帧对齐时间为9.5ms,以此类推,得到TDD上下行配置5的上行传输的平均帧对齐时间为5ms,因此上行U平面时延为平均8.5ms,如下面的表3所示。LTE TDD各个TDD上下行配置对应的下行和上行U平面时延的平均值如表2和表3所示,可以看到TDD系统U平面时延均大于FDD系统的4ms U平面时延。
表2:
Figure PCTCN2017085132-appb-000002
表3:
Figure PCTCN2017085132-appb-000003
Figure PCTCN2017085132-appb-000004
传统TTI是指LTE系统中定义的1个子帧,即1ms长度的TTI;短TTI是指传输长度小于1ms的TTI;目前确定,支持使用短TTI传输的上行信道至少包括s-PUCCH(Short Physical Uplink Control CHannel,短物理上行控制信道)和s-PUSCH(Short Physical Uplink Shared CHannel,短物理上行共享信道);支持使用短TTI传输的下行信道至少包括s-PDCCH(Short Physical Downlink Control Channel,短物理下行控制信道)和s-PDSCH(Short Physical Downlink Shared Channel,短物理下行共享信道)。
综上所述,使用现有帧结构的TD-LTE系统,虽然能较好的适应网络中不同上下行业务比例的需求,但在用户面延时性能上不如FDD系统,部分情况下U平面时延比FDD系统高一倍。随着移动通信业务需求的发展变化,ITU(International Telecommunication Union,国际电信联盟)等多个组织对未来移动通信系统都定义了更高的用户面延时性能要求,使用现有TDD帧结构无法实现相比FDD系统相近或相当的用户面时延性能。
发明内容
本申请实施例提供了一种子帧类型通知、确定方法及装置,用以使得终端能够动态确定子帧类型,以便进一步的用以灵活改变子帧类型,适应不同的业务传输需求,提高系统传输效率。
本申请实施例提供的一种子帧类型确定方法包括:
在预设资源中检测用于确定子帧类型的指示信息;
根据检测结果,确定子帧类型。
通过该方法,在预设资源中检测用于确定子帧类型的指示信息,根据检测结果,确定子帧类型,从而使得终端可以动态确定子帧类型,以便进一步的用以灵活改变子帧类型,适应不同的业务传输需求,提高系统传输效率。
实施中,所述在预设资源中检测用于确定子帧类型的指示信息,具体包括:
在预设资源中检测用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中检测用于调度上行传输的下行控制信道。
实施中,所述根据检测结果,确定子帧类型,具体包括:
当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述根据检测结果,确定子帧类型,具体包括:
当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中, N1为正整数;
和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述根据检测结果,确定子帧类型,包括:
当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的TDD上下行配置确定的子帧类型。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,所述在预设资源中检测用于确定子帧类型的指示信息,具体包括:在预设资源中接收公共信息或终端专属信息。
实施中,所述根据检测结果,确定子帧类型,具体包括:
根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
本申请实施例提供的一种子帧类型通知方法,包括:
确定用于发送指示信息的预设资源,其中,所述指示信息用于指示终端确定子帧类型;
在所述预设资源中发送所述指示信息。
实施中,在所述预设资源中发送所述指示信息,具体包括:
在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中发送用于调度上行传输的下行控制信道。
实施中,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,在所述预设资源中发送所述指示信息,具体包括:
在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通 知的子帧集合。
实施中,在所述预设资源中发送所述指示信息,具体包括:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息。
实施中,所述指示信息指示预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
本申请实施例提供的一种子帧类型确定装置,包括:
检测单元,用于在预设资源中检测用于确定子帧类型的指示信息;
确定单元,用于根据检测结果,确定子帧类型。
实施中,所述检测单元,具体用于:
在预设资源中检测用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中检测用于调度上行传输的下行控制信道。
实施中,所述确定单元具体用于:
当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧 中的一种或多种。
实施中,所述确定单元具体用于:
当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述确定单元具体用于:
当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的TDD上下行配置确定的子帧类型。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,所述检测单元具体用于:在预设资源中接收公共信息或终端专属信息。
实施中,所述检测单元具体用于:根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
本申请实施例提供的一种子帧类型通知装置,包括:
确定单元,用于确定用于发送指示信息的预设资源,其中,所述指示信息用于指示终端确定子帧类型;
发送单元,用于在所述预设资源中发送所述指示信息。
实施中,所述发送单元具体用于:
在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中发送用于调度上行传输的下行控制信道。
实施中,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述发送单元具体用于:
在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特 殊子帧或预设子帧,其中,N1为正整数;
和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,所述发送单元,具体用于:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息。
实施中,所述指示信息指示预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简要介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域的普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为背景技术中LTE FDD系统中的帧结构示意图;
图2为背景技术中LTE TDD系统中的帧结构示意图;
图3为背景技术中FDD系统用户面延时组成(User plane latency components for FDD)示意图;
图4为背景技术中TDD系统下行链路用户面延时组成(Downlink User  plane latency components for TDD)示意图;
图5为背景技术中TDD系统上行链路用户面延时组成(Uplink User plane latency components for TDD)示意图;
图6为本申请实施例提供的一种子帧类型确定方法的流程示意图;
图7为本申请实施例提供的一种子帧类型通知方法的流程示意图;
图8为本申请实施例提供的一种子帧类型确定装置的结构示意图;
图9为本申请实施例提供的一种子帧类型通知装置的结构示意图;
图10为本申请实施例提供的另一种子帧类型确定装置的结构示意图;
图11为本申请实施例提供的另一种子帧类型通知装置的结构示意图。
具体实施方式
本申请实施例提供了一种子帧类型通知、确定方法及装置,用以使得终端可以动态确定子帧类型,以便进一步的用以灵活改变子帧类型,适应不同的业务传输需求,提高系统传输效率。
随着移动通信业务需求的发展变化,ITU等多个组织对未来移动通信系统都定义了更高的用户面延时性能要求。缩短用户时延性能的主要方式之一是降低TTI长度。本申请实施例提供的技术方案,可以灵活改变每个子帧的子帧类型,并进行相应的传输,能够在保持业务适应灵活性的基础上,降低用户面时延。
在终端侧,参见图6,本申请实施例提供的一种子帧类型确定方法包括:
S101、在预设资源中检测用于确定子帧类型的指示信息;
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
S102、根据检测结果,确定子帧类型。
实施中,所述在预设资源中检测用于确定子帧类型的指示信息,具体包括:
在预设资源中检测用于调度下行传输的下行控制信道或指示下行SPS(semi-persistent schedule,半持续调度)资源释放的下行控制信道;
和/或,在预设资源中检测用于调度上行传输的下行控制信道。
例如,终端根据接收到的DL grant(下行调度信息)和/或UL grant(上行调度信息)确定与任一所述grant相对应的子帧、或与所述grant相对应的子帧开始的N个子帧、或与所述grant相对应的子帧之后的N个子帧的子帧类型。其中,DL grant通过使用下行传输对应的DCI(Downlink Control Information,下行控制信息)格式的下行控制信道承载,DL grant通过使用上行传输对应的DCI格式的下行控制信道承载。
因此,实施中,所述根据检测结果,确定子帧类型,具体包括:
当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。例如,包含上述N1个子帧或N2个子帧中的每个子帧的子帧类型,可以用bitmap(比特映射)或列举方式表达。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。即该子帧中的部分符号被定义为用于下行传输,部分符号被定义为用于上行 传输,当然还包括上行和下行之间的保护间隔(即在上行和下行之间预留部分符号不传输任何信息,该预设子帧也可以称为自包含子帧或新子帧类型或新的特殊子帧等)。与TDD现有定义的特殊子帧不同,本申请实施例中所述的预设子帧中的上行传输资源中可以传输上行数据,例如上行共享信道、上行控制信道等;当然,如果允许TDD现有定义的特殊子帧中的上行传输资源可以传输上行数据,那么也可以不区分特殊子帧和预设子帧,统一称为特殊子帧或预设子帧;下述涉及到的相关内容同此处解释。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。其中,所述下行控制信道包括传统的下行控制信道和短下行控制信道,可以是基于PDCCH(physical downlink control channel,物理下行控制信道)或EPDCCH(Enhanced Physical Downlink Control Channel,增强物理下行控制信道)的下行控制信道。
或者,实施中,所述在预设资源中检测用于确定子帧类型的指示信息,具体包括:在预设资源中接收公共信息或终端专属信息。
实施中,所述根据检测结果,确定子帧类型,具体包括:
根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
也就是说,本申请实施例中,还可以根据公共信息或终端专属信息,通知在一个周期中哪些子帧为特殊子帧或预设子帧(其余子帧按照TDD上下行配置所确定的子帧类型进行传输)。这种方式较为简单,可以假设除了通知的子帧为特殊子帧或预设子帧,其余子帧的子帧类型按照TDD上下行配置(这里的TDD上下行配置可以为系统信息配置的,也可以为参考TDD上下行配置)来确定;当然,也可以通过公共信息或终端专属信息通知预设周期中的每个子帧的子帧类型。
下面介绍一下终端侧的五种子帧类型确定方式:
方式一:终端在预设子帧集合中的每个子帧中检测DL grant(该DL grant还包括指示下行SPS资源释放的下行控制信道,下同),当检测到所述终端的 DL grant时,根据所述DL grant中携带的通知信息确定终端在所述DL grant的传输子帧所使用的子帧类型,或所述DL grant的传输子帧开始的N1个子帧所使用的子帧类型,或所述DL grant的传输子帧之后的N1个子帧所使用的子帧类型;其中,N1为大于或等于1的正整数值;
其中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧之一或者其组合,或者所述子帧类型包括下行子帧、特殊子帧、预设子帧之一或者其组合;
所述通知信息具体用于指示一种子帧类型,例如指示下行子帧、上行子帧、特殊子帧、预设子帧中的一种类型,或者指示下行子帧、特殊子帧、预设子帧中的一种类型;此时,上述与DL grant对应的子帧或子帧集合中的每个子帧的子帧类型都为所述通知信息所指示的子帧类型;例如,上述通知信息指示子帧类型为下行子帧,则确定所述DL grant的传输子帧所使用的子帧类型为下行子帧,或者确定所述DL grant的传输子帧开始的N1个子帧或所述DL grant的传输子帧之后的N1个子帧所使用的子帧类型都为下行子帧,又例如上述通知信息指示子帧类型为预设子帧,则确定所述DL grant的传输子帧所使用的子帧类型为预设子帧,或者确定所述DL grant的传输子帧开始的N1个子帧或所述DL grant的传输子帧之后的N1个子帧所使用的子帧类型都为预设子帧;或者,所述通知信息通知高层信令预先配置的或者预先约定的K个子帧类型组合中的一个,其中每个子帧类型组合中包含N1个子帧中每个子帧的具体子帧类型;例如高层信令预先配置或者预先约定2个子帧类型组合,假设N1=2,第1个子帧类型组合为{下行子帧,下行子帧},第2个子帧类型组合为{下行子帧,预设子帧},则所述通知信息可以为1比特信息,当通知信息的状态为“0”时指示第1个子帧类型组合,则DL grant传输子帧开始的N1个子帧或DL grant传输子帧之后的N1个子帧的子帧类型依次为{下行子帧,下行子帧},当通知信息的状态为“1”时指示第2个子帧类型组合,则DL grant传输子帧开始的N1个子帧或DL grant传输子帧之后的N1个子帧的子帧类型依次为{下行子帧,预设子帧}。
当没有检测到所述终端的DL grant时,终端假设所述DL grant的传输子帧所使用的子帧类型,或所述DL grant的传输子帧开始的N1个子帧所使用的子帧类型,或所述DL grant的传输子帧之后的N1个子帧所使用的子帧类型,与所述DL grant的传输子帧的前一个子帧相同,或者,为预定的子帧类型(例如总是假设为下行子帧,或者总是假设为上行子帧,或者总是假设为特殊子帧,或者总是假设为预设子帧);或者,为根据所述终端在当前载波上的TDD上下行配置(该TDD上下行配置为系统信息配置或参考TDD上下行配置)确定的子帧类型;
其中,所述DL grant在LTE传统控制区域传输(即一个子帧中的前K个符号上传输,可以表现为传输PDCCH或sPDCCH),或在短TTI搜索空间中传输。
方式二:终端在预设子帧集合中的每个子帧中检测UL grant,当检测到所述终端的UL grant时,根据所述UL grant中携带的通知信息确定终端在所述UL grant所对应的子帧(即该UL grant所调度的数据传输所在的子帧)或所对应的子帧开始的N2个子帧的子帧类型;
所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧之一或者其组合,或者所述子帧类型包括上行子帧、特殊子帧、预设子帧之一或者其组合;
所述通知信息具体用于指示括下行子帧、上行子帧、特殊子帧、预设子帧中的一种类型,或者指示下行子帧、特殊子帧、预设子帧中的一种类型;此时,上述与UL grant对应的子帧或子帧集合中的每个子帧的子帧类型都为所述通知信息所指示的子帧类型;例如,上述通知信息指示子帧类型为上行子帧,则确定所述UL grant所对应的子帧所使用的子帧类型为上行子帧,或者确定所述UL grant所对应的子帧开始的N2个子帧所使用的子帧类型都为上行子帧,又例如上述通知信息指示子帧类型为预设子帧,则确定所述UL grant所对应的子帧所使用的子帧类型为预设子帧,或者确定所述UL grant所对应的子帧开始的N2个子帧所使用的子帧类型都为预设子帧。或者,所述通知信 息通知高层信令预先配置的或者预先约定的K个子帧类型组合中的一个,其中每个子帧类型组合中包含N2个子帧中每个子帧的具体子帧类型;例如高层信令预先配置或者预先约定2个子帧类型组合,假设N2=2,第1个子帧类型组合为{上行子帧,上行子帧},第2个子帧类型组合为{上行子帧,预设子帧},则所述通知信息可以为1比特信息,当通知信息的状态为“0”时指示第1个子帧类型组合,则UL grant所对应的子帧开始的N2个子帧的子帧类型依次为{上行子帧,上行子帧},当通知信息的状态为“1”时指示第2个子帧类型组合,则UL grant所对应的子帧开始的N2个子帧的子帧类型依次为{上行子帧,预设子帧}。
当没有检测到所述终端的UL grant时,终端假设所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧的子帧类型同所述UL grant所对应的子帧的前一个子帧,或者,假设所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧为预定的子帧类型(例如总是假设为下行子帧,或者总是假设为上行子帧,或者总是假设为特殊子帧),或者,假设所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧的子帧类型为根据所述终端在当前载波上的TDD上下行配置(该TDD上下行配置为系统信息配置或参考TDD上下行配置)确定的子帧类型。
所述UL grant在LTE传统控制区域传输(即一个子帧中的前K个符号上传输,可以表现为传输PDCCH或sPDCCH),或在短TTI搜索空间中传输。
方式三:终端在预设子帧集合中的每个子帧中检测DL grant,当检测到所述终端的DL grant时,确定终端在所述DL grant的传输子帧所使用的子帧类型,或所述DL grant的传输子帧开始的N1个子帧所使用的子帧类型,或所述DL grant的传输子帧之后的N1个子帧所使用的子帧类型,为下行子帧;或者,终端在预设子帧集合中的每个子帧中检测DL grant,当检测到所述终端的DL grant时,确定终端在所述DL grant的传输子帧所使用的子帧类型,或所述DL grant的传输子帧开始的N1个子帧所使用的子帧类型,或所述DL grant的传输子帧之后的N1个子帧所使用的子帧类型,为特殊子帧或为预设子帧;其中, N1为大于或等于1的正整数值;
当没有检测到所述终端的DL grant时,终端假设所述DL grant的传输子帧或所述DL grant的传输子帧开始的N1个子帧或所述DL grant的传输子帧之后的N1个子帧的子帧类型同其前一个子帧,或者,假设所述DL grant的传输子帧或所述DL grant的传输子帧开始的N1个子帧或所述DL grant的传输子帧之后的N1个子帧为预定的子帧类型(例如总是假设为下行子帧,或者总是假设为上行子帧,或者总是假设为特殊子帧,或总是假设为预设子帧),或者,假设所述DL grant的传输子帧或所述DL grant的传输子帧开始的N1个子帧或所述DL grant的传输子帧之后的N1个子帧的子帧类型为根据所述终端在当前载波上的TDD上下行配置(该TDD上下行配置为系统信息配置或参考TDD上下行配置)确定的子帧类型;
其中,所述DL grant在LTE传统控制区域传输(即一个子帧中的前K个符号上传输,可以表现为传输PDCCH或sPDCCH),或在短TTI搜索空间中传输。
方式四:终端在预设子帧集合中的每个子帧中检测UL grant,当检测到所述终端的UL grant时,确定所述UL grant所对应的子帧(即该UL grant所调度的数据传输所在的子帧)或所对应的子帧开始的N2个子帧的子帧类型为上行子帧;或者,终端在预设子帧集合中的每个子帧中检测UL grant,当检测到所述终端的UL grant时,确定所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧的子帧类型为特殊子帧或预设子帧;其中,N2为大于或等于1的正整数;
当没有检测到所述终端的UL grant时,终端假设所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧的子帧类型同其前一个子帧,或者,假设所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧为预定的子帧类型(例如总是假设为下行子帧,或者总是假设为上行子帧,或者总是假设为特殊子帧,或总是假设为预设子帧),或者,假设所述UL grant所对应的子帧或所对应的子帧开始的N2个子帧的子帧类型为根据所述终端在当前载波 上的TDD上下行配置(该TDD上下行配置为系统信息配置或参考TDD上下行配置)确定的子帧类型;
其中,所述UL grant在LTE传统控制区域传输(即一个子帧中的前K个符号上传输,可以表现为传输PDCCH或sPDCCH),或在短TTI搜索空间中传输。
以上方式一、二、三和四中,所述预设子帧集合约定为一个无线帧中的每个子帧(包括根据TDD上下行配置确定的上行子帧),或者所述预设子帧集合为配置信令通知的子帧集合。
其中,所述配置信令可以在LTE系统中的传统控制区域中传输(例如携带在一个子帧中的前K个符号中传输的DL grant或UL grant中,所述DL grant或UL grant可以为UE(User Equipment,用户设备)专属的或者为UE共享的);或者所述配置信令为高层信令或广播信令。
由上述几种方式可以看出,本申请实施例中,实施中,所述根据检测结果,确定子帧类型,具体包括:
当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。例如,包含上述N1个子帧或N2个子帧中的每个子帧的子帧类型,可以用bitmap或列举方式表达。
或者,实施中,所述根据检测结果,确定子帧类型,具体包括:
当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的 下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述根据检测结果,确定子帧类型,还包括:
当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的TDD上下行配置确定的子帧类型。
方式五:根据公共信息或终端专属信息,确定在一个周期中哪些子帧为特殊子帧或预设子帧。
其中,公共信息或终端专属信息可以在预定的时频域资源上传输;例如在LTE传统控制区域传输(即一个子帧中的前K个符号上传输),或者在预定子帧中的特定资源上传输;
当为终端专属信息时,还可以通过传统PDCCH或sPDCCH在终端专用搜索空间中传输;
上述公共信息或终端专属信息可以在每个子帧中传输,或者按照特定周期在部分子帧中传输;
上述方式一、二、三、四、五中,所述特殊子帧为部分符号用作下行传输、部分符号用作上行传输、部分符号用作保护间隔的子帧;
上述方式一、二、三、四、五中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分的划分,为预先约定的或者配置信令通知的;
实施中,当采用配置信令通知时,可以为所述DL grant或UL grant中通知的,或者为高层信令通知的,或广播信令通知的。
实施中,所述配置信令直接通知预先约定的多种下行传输部分、上行传输部分、保护间隔部分的划分方式中的一种,例如,预先约定第一种划分方式为第1~6个符号为下行,第7、9个符号为保护间隔,第9~14个符号为上行,第二种划分方式为第1~9个符号为下行,第10个符号为保护间隔,第11~14个符号为上行,第三种划分方式为第1~4个符号为下行,第5、6个符号为保护间隔,第7~14个符号为上行,配置信令可以通知其中一种作为特殊子帧或预设子帧的具体资源划分结构;或者所述配置信令直接通知一个特殊子帧中的下行传输部分、上行传输部分、保护间隔部分的划分,例如可以直接通知下行部分的符号数和位置,上行部分的符号数和位置,剩余部分为保护间隔部分。
基站侧的方式与上述内容类似。
参见图7,在基站侧,本申请实施例提供的一种子帧类型通知方法,包括:
S201、确定用于发送指示信息的预设资源,其中,所述指示信息用于指示终端确定子帧类型;
S202、在所述预设资源中发送所述指示信息。
实施中,在所述预设资源中发送所述指示信息,具体包括:
在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中发送用于调度上行传输的下行控制信道。
实施中,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的 子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,在所述预设资源中发送所述指示信息,具体包括:
在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,在所述预设资源中发送所述指示信息,具体包括:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息;其中,所述指示信息指示预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者 为广播信令。
下面给出几个具体实施例的举例说明。
实施例1(对应上述方式一):终端的TDD上下行配置为表1中的配置1,终端默认一个无线帧中的每个子帧中都需要检测DL grant,假设在子帧2中检测到了DL grant,且该DL grant中的指示域指示的子帧类型为下行子帧,则终端在子帧2中按照下行子帧进行传输(尽管这个子帧根据现有的TDD上下行配置为上行子帧),从而实现动态将上行子帧2改变为下行子帧,否则(即如果没有检测到DL grant),则例如根据表1中的TDD上下行配置确定子帧2为上行子帧;或者,该DL grant中的指示域指示一个预先配置或约定的N1个子帧的子帧类型组合,例如以10个子帧为单位,预先约定或配置10个子帧的子帧类型如下表4所示(其中S可以表示特殊子帧,或者也可以表示预设子帧),DL grant中的指示域指示“01”,表示按照表4中第二种子帧类型的组合来确定子帧2开始的N1个子帧的子帧类型,或者确定子帧2之后的N1个子帧的子帧类型;或者,该DL grant还可以指示子帧2开始的N1个子帧的子帧类型,或子帧2之后的N1个子帧的子帧类型,其中子帧2之后的N1个子帧可以为与子帧2连续的子帧,或者指不连续的子帧,例如下一个无线帧中的N1个子帧。
表4:DL grant中的指示域与N1个子帧的子帧类型组合的对应关系
Figure PCTCN2017085132-appb-000005
Figure PCTCN2017085132-appb-000006
实施例2(对应方式二):终端的TDD上下行配置为表1中的配置1,终端默认一个无线帧中的每个子帧中都需要检测UL grant,假设在子帧5中检测到了UL grant,且该UL grant用来调度子帧9中进行上行传输,且该UL grant中的指示域指示的子帧类型为特殊子帧或预设子帧,则终端在子帧9中按照特殊子帧或预设子帧进行传输(尽管这个子帧根据现有的TDD上下行配置为下行子帧),从而实现动态将下行子帧改变为包含上行资源的子帧,否则(如果没有检测到UL grant),则例如根据TDD上下行配置确定子帧9为下行子帧或者默认子帧9为下行子帧;或者该UL grant中的指示域指示一个预先配置或约定的N2个子帧的子帧类型组合,例如以10个子帧为单位,预先约定或配置10个子帧的子帧类型如下表5所示(其中S可以表示特殊子帧,或者也可以表示预设子帧),UL grant中的指示域指示“01”,表示按照表5中的第二种子帧类型的组合来确定子帧9开始的N2个子帧的子帧类型,或者确定子帧9之后的N2个子帧的子帧类型;或者,该UL grant还可以指示子帧9开始的N2个子帧的子帧类型,或子帧9之后的N2个子帧的子帧类型,其中子帧9之后的N2个子帧可以为与子帧9连续的子帧,或者指不连续的子帧,例如下一个无线帧中的N2个子帧。
表5:UL grant中的指示域与N1个子帧的子帧类型组合的对应关系
Figure PCTCN2017085132-appb-000007
Figure PCTCN2017085132-appb-000008
实施例3(对应方式三):终端的TDD上下行配置为表1中的配置1,终端默认一个无线帧中的每个子帧中都需要检测DL grant,假设在子帧2中检测到了DL grant,则终端在子帧2中按照下行子帧或特殊子帧或预设子帧进行传输(尽管这个子帧根据现有的TDD上下行配置为上行子帧),从而实现动态将上行子帧2改变为包含下行资源的子帧,否则(即如果没有检测到DL grant),则例如根据表1中的TDD上下行配置确定子帧2为上行子帧或者根据约定总是确定子帧2为上行子帧;如果终端确定子帧2为特殊子帧或预设子帧,假设按照预定义的特殊子帧或预设子帧结构传输,例如对于常规CP(Cyclic Prefix,循环前缀)预定义第一个符号到第6个符号为下行,中间2个符号为保护间隔(GP),最后6个符号为上行,或者该DL grant中进一步携带指示特殊子帧或预设子帧中的下行(DL)、GP和上行(UL)划分的指示信息,例如仅指示其中两个域的具体符号数,剩余一个域可以自行推断,或者显示指示3个域的划分。
实施例4(对应方式四):终端的TDD上下行配置为表1中的配置1,终端默认一个无线帧中的每个子帧中都需要检测UL grant,假设在子帧5中检测到了UL grant,且该UL grant用来调度子帧9中进行上行传输,则终端确定子帧9为上行子帧或者终端确定子帧9为特殊子帧或预设子帧,否则(如果没有检测到UL grant),则例如根据TDD上下行配置确定子帧9为下行子帧或者总是确定子帧9为下行子帧;如果终端确定子帧9为特殊子帧或预设子帧,假设按照预定义的特殊子帧或预设子帧结构传输,例如对于常规CP预定义第一个符号到第6个符号为下行,中间2个符号为保护间隔(GP),最后6个符号为上行,或者该UL grant中进一步携带指示特殊子帧或预设子帧中的下行(DL)、GP和上行(UL)划分的指示信息,例如仅指示其中两个域的具体符号数,剩余一个域可以自行推断,或者显示指示3个域的划分。
上述实施例中,也可以预先配置一个子帧集合,在该集合中的子帧中检 测上述DL grant或UL grant,例如对于TDD上下行配置1,预先约定或者配置子帧集合{#1、3、4、6、8、9},即在这些子帧中可以检测指示子帧类型的DL grant,从而改变这些子帧的子帧类型,其余子帧的子帧类型则不能改变,默认为TDD上下行配置所确定的子帧类型,或者默认为下行;对于UL grant的检测,同理,可以预先约定或配置一个可以检测UL grant的子帧集合,该子帧中的子帧所对应的被调度子帧是可以改变子帧类型的,其余子帧的子帧类型则不能改变,默认为TDD上下行配置所确定的子帧类型,或者默认为下行;上述子帧集合,可以是固定不变的,例如预先约定好,或者也可以是半静态的,例如高层信令通知,当然也可以是周期改变的,例如广播通知或者DCI通知,按照特定周期发送的广播信道或DCI可以周期性改变上述子帧集合;如果上述子帧集合是通过DCI通知的,该DCI可以在LTE系统的传统控制区域中传输,则终端在第一个下行子帧中先检测传统控制区域,得到该DCI后根据指示确定后续在哪些子帧中检测DL grant/UL grant,或者该DCI也可以在短TTI搜索空间中传输,则当获得第一个短TTI调度信息时,可以根据其中的指示确定后续在哪些子帧中检测DL grant/UL grant,上述DCI可以是对所有或部分终端共享的,也可以终端专属的;如果上述子帧集合是通过广播通知的,则终端首先根据广播周期等配置信息,获取广播信息,进而得到后续在哪些子帧中检测DL grant/UL grant;
需要说明的是,上述实施例中,如果根据grant1获取子帧类型的子帧与根据grant2获取子帧类型的子帧之间存在重叠,则对于重叠子帧后续接收到的grant的指示信息将覆盖之前接收到grant的指示信息,即对于同一个子帧,总是以最近一个接收到的用于指示其子帧类型的grant所指示的子帧类型工作。
实施例4(对应方式五):终端按照特定周期接收广播通知或者DCI,该广播信道或DCI指示一个周期中的子帧类型,例如指示该广播或DCI传输所在的无线帧或者下一个无线帧中的哪些子帧为特殊子帧或预设子帧,其中,可以预先约定或配置P个特殊子帧或预设子帧集合,例如集合1中的特殊子帧或预设子帧为一个无线帧中的子帧1/3,集合2中的特殊子帧或预设子帧为 一个无线帧中的子帧1/3/6/8,集合3中的特殊子帧或预设子帧为一个无线帧中的子帧1/3/4,集合4中的特殊子帧或预设子帧为一个无线帧中的1/3/4/6/8/9,该广播或DCI指示其中一个集合给终端,也可以通过bitmap方式指示一个无线帧中的每个子帧的类型,或直接指示特殊子帧或预设子帧的子帧编号,当然还可以同时指示特殊子帧或预设子帧的上下行划分,或者默认一种特殊子帧或预设子帧的上下行划分;如果是通过DCI通知的,该DCI可以在LTE系统的传统控制区域中传输,则终端在第一个下行子帧中先检测传统控制区域,得到该DCI后根据指示确定后续哪些子帧为特殊子帧或预设子帧,或者该DCI也可以在短TTI搜索空间中传输,则当获得第一个短TTI调度信息时,可以根据其中的指示确定后续哪些子帧为特殊子帧或预设子帧,上述DCI可以是对所有或部分终端共享的,也可以是终端专属的;如果是通过广播通知的,则终端首先根据广播周期等配置信息,获取广播信息,进而得到后续哪些子帧为特殊子帧或预设子帧。
参见图8,在终端侧,本申请实施例提供的一种子帧类型确定装置,包括:
检测单元11,用于在预设资源中检测用于确定子帧类型的指示信息;
确定单元12,用于根据检测结果,确定子帧类型。
实施中,所述检测单元,具体用于:
在预设资源中检测用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中检测用于调度上行传输的下行控制信道。
实施中,所述确定单元具体用于:
当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述确定单元具体用于:
当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述确定单元具体用于:
当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的TDD上下行配置确定的子帧类型。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,所述检测单元具体用于:在预设资源中接收公共信息或终端专属信息。
实施中,所述检测单元具体用于:根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
相应地,在基站侧,参见图9,本申请实施例提供的一种子帧类型通知装置,包括:
确定单元21,用于确定用于发送指示信息的预设资源,其中,所述指示信息用于指示终端确定子帧类型;
发送单元22,用于在所述预设资源中发送所述指示信息。
实施中,所述发送单元具体用于:
在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中发送用于调度上行传输的下行控制信道。
实施中,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述发送单元具体用于:
在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,所述发送单元22具体用于:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息。
实施中,所述指示信息指示预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
参见图10,本申请实施例提供的一种子帧类型确定装置,包括:
处理器600,用于读取存储器620中的程序,执行下列过程:
在预设资源中检测用于确定子帧类型的指示信息;
根据检测结果,确定子帧类型。
实施中,所述处理器600在预设资源中检测用于确定子帧类型的指示信息时,具体用于:
在预设资源中检测用于调度下行传输的下行控制信道或指示下行SPS资 源释放的下行控制信道;
和/或,在预设资源中检测用于调度上行传输的下行控制信道。
实施中,所述处理器600根据检测结果,确定子帧类型时,具体用于:
当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述处理器600根据检测结果,确定子帧类型时,具体用于:
当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述处理器600根据检测结果,确定子帧类型时,具体用于:
当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子 帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的TDD上下行配置确定的子帧类型。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
或者,实施中,所述处理器600在预设资源中检测用于确定子帧类型的指示信息时,具体用于:在预设资源中接收公共信息或终端专属信息。
相应地,所述处理器600根据检测结果,确定子帧类型时,具体用于:根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
收发机610,用于在处理器600的控制下接收和发送数据。
其中,在图10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600代表的一个或多个处理器和存储器620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610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630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600负责管理总线架构和通常的处理,存储器620可以存储处理器600在执行操作时所使用的数据。
参见图11,本申请实施例提供的另一种子帧类型通知装置,包括:
处理器500,用于用于读取存储器520中的程序,执行下列过程:
确定用于发送指示信息的预设资源,其中,所述指示信息用于指示终端确定子帧类型;
通过收发机510在所述预设资源中发送所述指示信息。
实施中,所述处理器500通过收发机510在所述预设资源中发送所述指示信息时,具体用于:
在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
和/或,在预设资源中发送用于调度上行传输的下行控制信道。
实施中,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
实施中,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
实施中,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
实施中,所述处理器500通过收发机510在所述预设资源中发送所述指示信息时,具体用于:
在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特 殊子帧或预设子帧,其中,N1为正整数;
和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
实施中,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
实施中,所述处理器500通过收发机510在所述预设资源中发送所述指示信息,具体包括:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息。
实施中,所述指示信息指示预设周期中的特殊子帧或预设子帧。
实施中,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
实施中,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
实施中,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
收发机510,用于在处理器500的控制下接收和发送数据。
其中,在图11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500代表的一个或多个处理器和存储器520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510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500负责管理总线架构和通常的处理,存储器520可以存储处理器500在执行操作时所使用的数据。
以上本申请实施例中所述的处理器可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field -Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)。
综上所述,本申请实施例提供的技术方案,根据接收到的DL grant和/或UL grant,确定与所述grant相对应的子帧或与所述grant相对应的子帧开始的N个子帧或与所述grant相对应的子帧之后的N个子帧中的子帧类型,或者,根据公共信息或终端专属信息通知在一个周期中哪些子帧为特殊子帧。从而使得终端动态确定子帧类型,以便进一步的用以灵活改变子帧类型,适应不同的业务传输需求,提高系统传输效率。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请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,本申请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和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、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。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (50)

  1. 一种子帧类型确定方法,其特征在于,该方法包括:
    在预设资源中检测用于确定子帧类型的指示信息;
    根据检测结果,确定子帧类型。
  2. 根据权利要求1所述的方法,其特征在于,所述在预设资源中检测用于确定子帧类型的指示信息,具体包括:
    在预设资源中检测用于调度下行传输的下行控制信道或指示下行半持续调度SPS资源释放的下行控制信道;
    和/或,在预设资源中检测用于调度上行传输的下行控制信道。
  3. 根据权利要求2所述的方法,其特征在于,所述根据检测结果,确定子帧类型,具体包括:
    当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
  4. 根据权利要求3所述的方法,其特征在于,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
  5. 根据权利要求3或4所述的方法,其特征在于,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
  6. 根据权利要求2所述的方法,其特征在于,所述根据检测结果,确定子帧类型,具体包括:
    当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的 下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
    和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
  7. 根据权利要求2所述的方法,其特征在于,所述根据检测结果,确定子帧类型,包括:
    当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的时分双工TDD上下行配置确定的子帧类型。
  8. 根据权利要求1~7任一权项所述的方法,其特征在于,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
  9. 根据权利要求1所述的方法,其特征在于,所述在预设资源中检测用于确定子帧类型的指示信息,具体包括:在预设资源中接收公共信息或终端专属信息。
  10. 根据权利要求9所述的方法,其特征在于,所述根据检测结果,确定子帧类型,具体包括:
    根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
  11. 根据权利要求5、6或10所述的方法,其特征在于,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
  12. 根据权利要求5、6或10所述的方法,其特征在于,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
  13. 根据权利要求8或11所述的方法,其特征在于,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
  14. 一种子帧类型通知方法,其特征在于,该方法包括:
    确定用于发送指示信息的预设资源,其中,所述指示信息用于指示终端确定子帧类型;
    在所述预设资源中发送所述指示信息。
  15. 根据权利要求14所述的方法,其特征在于,在所述预设资源中发送所述指示信息,具体包括:
    在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
    和/或,在预设资源中发送用于调度上行传输的下行控制信道。
  16. 根据权利要求15所述的方法,其特征在于,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
  17. 根据权利要求16所述的方法,其特征在于,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
  18. 根据权利要求16或17所述的方法,其特征在于,所述子帧类型包 括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
  19. 根据权利要求15所述的方法,其特征在于,在所述预设资源中发送所述指示信息,具体包括:
    在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
    和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
  20. 根据权利要求14~19任一权项所述的方法,其特征在于,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
  21. 根据权利要求14所述的方法,其特征在于,在所述预设资源中发送所述指示信息,具体包括:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息。
  22. 根据权利要求21所述的方法,其特征在于,所述指示信息指示预设周期中的特殊子帧或预设子帧。
  23. 根据权利要求18或19或22所述的方法,其特征在于,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
  24. 根据权利要求18或19或22所述的方法,其特征在于,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
  25. 根据权利要求20或23所述的方法,其特征在于,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
  26. 一种子帧类型确定装置,其特征在于,包括:
    检测单元,用于在预设资源中检测用于确定子帧类型的指示信息;
    确定单元,用于根据检测结果,确定子帧类型。
  27. 根据权利要求26所述的装置,其特征在于,所述检测单元,具体用于:
    在预设资源中检测用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
    和/或,在预设资源中检测用于调度上行传输的下行控制信道。
  28. 根据权利要求27所述的装置,其特征在于,所述确定单元具体用于:
    当检测到所述下行控制信道时,根据所述下行控制信道中携带的通知信息,确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
  29. 根据权利要求28所述的装置,其特征在于,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
  30. 根据权利要求28或29所述的装置,其特征在于,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
  31. 根据权利要求27所述的装置,其特征在于,所述确定单元具体用于:
    当检测到用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道时,确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中, N1为正整数;
    和/或,当检测到用于调度上行传输的下行控制信道时,确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
  32. 根据权利要求27所述的装置,其特征在于,所述确定单元具体用于:
    当在当前子帧中未检测到所述下行控制信道时,假设所述当前子帧的子帧类型,或所述当前子帧开始的N1个子帧的子帧类型,或所述当前子帧之后的N1个子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧的子帧类型,或在所述当前子帧中传输的下行控制信道所调度的子帧开始的N2个子帧的子帧类型,与所述当前子帧的前一个子帧相同,或为预先约定或配置的子帧类型,或为根据终端的TDD上下行配置确定的子帧类型。
  33. 根据权利要求26~32任一权项所述的装置,其特征在于,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
  34. 根据权利要求26所述的装置,其特征在于,所述检测单元具体用于:在预设资源中接收公共信息或终端专属信息。
  35. 根据权利要求34所述的装置,其特征在于,所述检测单元具体用于:根据所述公共信息或终端专属信息,确定预设周期中的特殊子帧或预设子帧。
  36. 根据权利要求30或31或35所述的装置,其特征在于,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
  37. 根据权利要求30或31或35所述的装置,其特征在于,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
  38. 根据权利要求33或36所述的装置,其特征在于,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
  39. 一种子帧类型通知装置,其特征在于,包括:
    确定单元,用于确定用于发送指示信息的预设资源,其中,所述指示信 息用于指示终端确定子帧类型;
    发送单元,用于在所述预设资源中发送所述指示信息。
  40. 根据权利要求39所述的装置,其特征在于,所述发送单元具体用于:
    在预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道;
    和/或,在预设资源中发送用于调度上行传输的下行控制信道。
  41. 根据权利要求40所述的装置,其特征在于,所述下行控制信道中携带通知信息,用于指示终端确定所述下行控制信道的传输子帧的子帧类型、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型,或所述下行控制信道所调度的子帧的子帧类型,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型,其中,N1、N2为正整数。
  42. 根据权利要求41所述的装置,其特征在于,所述通知信息通知预先配置或约定的多种子帧类型中的一种,或所述通知信息通知预先配置或约定的多个子帧类型组合中的一个组合,其中,每个子帧类型组合中包含多个子帧中每个子帧的具体子帧类型。
  43. 根据权利要求41或42所述的装置,其特征在于,所述子帧类型包括下行子帧、上行子帧、特殊子帧、预设子帧中的一种或多种。
  44. 根据权利要求40所述的装置,其特征在于,所述发送单元具体用于:
    在所述预设资源中发送用于调度下行传输的下行控制信道或指示下行SPS资源释放的下行控制信道,用以指示终端确定所述下行控制信道的传输子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧开始的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧、或所述下行控制信道的传输子帧之后的N1个子帧的子帧类型为下行子帧或特殊子帧或预设子帧,其中,N1为正整数;
    和/或,在所述预设资源中发送用于调度上行传输的下行控制信道,用以指示终端确定所述下行控制信道所调度的子帧的子帧类型为上行子帧或特殊 子帧或预设子帧,或所述下行控制信道所调度的子帧开始的N2个子帧的子帧类型为上行子帧或特殊子帧或预设子帧,其中,N2为正整数。
  45. 根据权利要求39~44任意权项所述的装置,其特征在于,所述预设资源为每一无线帧中的每个子帧,或者为配置信令通知的子帧集合。
  46. 根据权利要求39所述的装置,其特征在于,所述发送单元,具体用于:在所述预设资源中通过公共信息或终端专属信息发送所述指示信息。
  47. 根据权利要求46所述的装置,其特征在于,所述指示信息指示预设周期中的特殊子帧或预设子帧。
  48. 根据权利要求43或44或46所述的装置,其特征在于,所述特殊子帧或预设子帧所包含的下行传输部分、上行传输部分、保护间隔部分为预先约定的,或者通过配置信令通知的。
  49. 根据权利要求43或44或46所述的装置,其特征在于,所述预设子帧为至少包括上行传输资源和下行传输资源的子帧。
  50. 根据权利要求45或48所述的装置,其特征在于,所述配置信令承载在下行控制信道中,或者为高层信令,或者为广播信令。
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