WO2017166984A1 - 信息反馈方法、基站、终端及存储媒介 - Google Patents

信息反馈方法、基站、终端及存储媒介 Download PDF

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Publication number
WO2017166984A1
WO2017166984A1 PCT/CN2017/075922 CN2017075922W WO2017166984A1 WO 2017166984 A1 WO2017166984 A1 WO 2017166984A1 CN 2017075922 W CN2017075922 W CN 2017075922W WO 2017166984 A1 WO2017166984 A1 WO 2017166984A1
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WIPO (PCT)
Prior art keywords
feedback
information
terminal
downlink control
bits
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PCT/CN2017/075922
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English (en)
French (fr)
Inventor
司倩倩
潘学明
王加庆
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电信科学技术研究院
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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 EP17773015.7A priority Critical patent/EP3439390B1/en
Priority to US16/090,128 priority patent/US10904919B2/en
Publication of WO2017166984A1 publication Critical patent/WO2017166984A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027Scheduling of signalling, e.g. occurrence thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an information feedback method, a base station, a terminal, and a storage medium.
  • TTIs transmission time intervals
  • the method of granting the Assisted Assisted Access (LAA) is defined. Accessing an authorized primary carrier, the unlicensed carrier can only act as a secondary carrier.
  • the unlicensed spectrum is not planned for a specific application system, and can be shared by various communication systems such as a Bluetooth system, a WiFi system, etc., and a plurality of systems use shared unlicensed spectrum resources by preempting resources.
  • a pre-session detection (LBT) mechanism is required before transmission.
  • the LBT process is a channel clearing assessment (CCA) performed by the device before using the channel for transmission. It determines whether there are other signals on the channel by means of energy detection or the like to determine whether the channel is occupied or idle. The channel is idle for data transmission.
  • CCA channel clearing assessment
  • the regulations of Chau and Japan must use LBT on unlicensed bands.
  • carrier sensing using LBT is also a way of fair sharing on unlicensed bands. Therefore, LBT is a necessary feature for a globally unified solution on unlicensed bands.
  • the LAA uplink it is not yet determined whether LBT and specific LBT types are required.
  • the base station since the uplink transmission is performed by the base station scheduling, and the uplink scheduling signaling needs to be transmitted at least 4 subframes before the data transmission, the base station cannot judge whether the terminal side channel is occupied when scheduling the terminal, and some regions also It is stipulated that each station must perform LBT before transmission, which also helps to eliminate some hidden nodes and improve coexistence performance.
  • ACK/NACK acknowledgement characters/non-confirmed characters
  • the feedback information may not be directly fed back by LBT after a delay of 16 ⁇ s, and it is also possible to use the mechanism when transmitting feedback information in the LAA.
  • the ACK/NACK feedback information of the downlink subframe numbered n is transmitted in the uplink subframe numbered n+h.
  • the ACK/NACK feedback information of different downlink subframes may need to be transmitted in the same uplink subframe, as shown in Table 1, according to the uplink subframe numbered n. H: ⁇ h 0 , h 1 , ...
  • each h value in the set can determine the downlink subframe (ie, the downlink subframe numbered nh) that needs to perform ACK/NACK feedback in the uplink subframe , including special subframes, the same uplink subframe needs to feed back ACK/NACK feedback information of G downlink subframes, where G is the number of elements in the set H, and different uplink subframes and different TDDs
  • the row configuration values are not necessarily the same.
  • the number in the above table is a subframe numbered n-k in units of radio frames, and if n-k is less than 0, it indicates a subframe in the previous radio frame.
  • the technical problem to be solved by the present disclosure is to provide an information feedback method, a base station, and a terminal, which are used to solve the problem that an existing terminal cannot accurately perform ACK/NACK feedback, and cannot guarantee the accuracy of communication.
  • an information feedback method including:
  • the downlink control information includes indication information for instructing the terminal to perform information feedback
  • the indication information includes: a delay of feedback by the terminal for feedback information, and whether the terminal performs feedback information feedback Performing pre-session detection, at least one of a type of pre-session detection when the terminal performs feedback feedback, and a parameter configuration for pre-session detection when the terminal performs feedback feedback;
  • the indication information includes a time delay when the terminal performs the feedback of the feedback information, where the downlink control information carries a first preset number of bits, where
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates that the feedback of the feedback information is extended. degree
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the first preset number of bits indicates an identifier of the feedback time extension of the feedback information in a preset delay set
  • x is the first preset number, and K is the number of parameters in the preset delay set; Round up the function.
  • the information feedback method further includes:
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal set by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes: when the terminal performs the pre-session detection when the feedback information is feedback, the downlink control information carries a second preset number of bits; wherein
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the indication information includes a type of pre-session detection and/or a pre-session detection parameter configuration when the feedback information is fed back by the terminal, where the downlink control information carries a third preset number of bits; among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • An embodiment of the present disclosure provides a base station, including:
  • the first sending module is configured to send downlink control information to the terminal, where the downlink control information includes indication information for instructing the terminal to perform information feedback, where the indication information includes: a delay of the feedback information feedback by the terminal, and the terminal Whether to perform pre-session detection when performing feedback information feedback, a type of pre-session detection when the terminal performs feedback information feedback, and at least one of parameter configuration of pre-session detection when the terminal performs feedback information feedback;
  • the first receiving module is configured to receive feedback information sent by the terminal according to the indication information in the downlink control information.
  • the indication information includes a time delay when the terminal performs the feedback of the feedback information, where the downlink control information sent by the first sending module carries a first preset number of bits;
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates a feedback time extension of the feedback information
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the first preset number of bits indicates an identifier of the feedback time extension of the feedback information in a preset delay set
  • x is the first preset number, and K is the number of parameters in the preset delay set; Round up the function.
  • the first sending module before transmitting the downlink control information, the first sending module further sends the radio resource control signaling carrying the delay set to the terminal.
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal set by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a corresponding feedback information.
  • the transmission time of the downlink data is a transmission time of the downlink control information or a corresponding feedback information.
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes: when the terminal performs the pre-session detection when the feedback information is feedback, the downlink control information sent by the first sending module carries a second preset number of bits;
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the indication information includes a type of pre-session detection and/or a pre-session detection parameter configuration when the feedback information is fed back by the terminal, and the downlink control information sent by the first sending module carries a third preset. Number of bits; among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • An embodiment of the present disclosure provides an information feedback method, including:
  • the downlink control information includes indication information for instructing the terminal to perform information feedback
  • the indication information includes: a delay of feedback by the terminal for feedback information, and whether the terminal performs feedback when performing feedback information feedback
  • the indication information includes a time delay when the terminal performs the feedback of the feedback information, where the downlink control information carries a first preset number of bits, where
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates a feedback time extension of the feedback information
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the first preset number of bits indicates that the feedback of the feedback information is extended.
  • x is the first preset number, and K is the number of parameters in the preset delay set; Round up the function.
  • the information feedback method further includes:
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal set by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes: when the terminal performs the pre-session detection when the feedback information is feedback, the downlink control information carries a second preset number of bits; wherein
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the indication information includes a type of pre-session detection and/or a pre-session detection parameter configuration when the feedback information is fed back by the terminal, where the downlink control information carries a third preset number of bits; among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • An embodiment of the present disclosure provides a terminal, including:
  • a second receiving module configured to receive downlink control information sent by the base station, where the downlink control information includes indication information for instructing the terminal to perform information feedback, where the indication information includes: a delay of the feedback information sent by the terminal, and the terminal is in Whether to perform pre-session detection when performing feedback information feedback, a type of pre-session detection when the terminal performs feedback information feedback, and at least one of parameter configuration of the pre-session detection when the terminal performs feedback information feedback;
  • the second sending module is configured to send feedback information to the base station according to the indication information in the downlink control information.
  • the indication information includes a time delay when the terminal performs feedback information feedback, and the downlink control information received by the second receiving module carries a first preset number of bits;
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates a feedback time extension of the feedback information
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the first preset number of bits indicates an identifier of the feedback time extension of the feedback information in a preset delay set
  • x is the first preset number, and K is the number of parameters in the preset delay set; Round up the function.
  • the second receiving module before receiving the downlink control information, the second receiving module further receives the radio resource control signaling that carries the delay set sent by the base station.
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal set by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes: when the terminal performs the pre-session detection when the feedback information is feedback, the downlink control information received by the second receiving module carries a second preset number of bits;
  • the second preset number of bits is used to indicate whether the terminal enters feedback feedback information. Pre-session detection.
  • the indication information includes a type of the pre-session detection and/or a parameter configuration of the pre-session detection when the feedback is performed by the terminal, and the downlink control information received by the second receiving module carries the third preset. Number of bits; among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • the terminal feedback information is sent in the downlink control information sent by the base station to the terminal, and the terminal sends the feedback information according to the indication, so that the base station can accurately receive the feedback information of the terminal, thereby ensuring the communication between the two. Reliability.
  • FIG. 1 is a schematic flowchart diagram of an information feedback method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a feedback delay indication manner according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of another feedback delay indication manner according to an embodiment of the present disclosure.
  • FIG. 4 is a block diagram showing a base station of an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart diagram of an information feedback method according to an embodiment of the present disclosure.
  • FIG. 7 is a block diagram showing a terminal of an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • the present disclosure provides an information feedback method, a base station, and a terminal for an existing terminal that cannot accurately perform ACK/NACK feedback and cannot guarantee the accuracy of communication.
  • the information feedback method of the embodiment of the present disclosure is applied to a base station side, and includes:
  • Step 11 Send downlink control information to the terminal, where the downlink control information includes indication information used to indicate that the terminal performs information feedback.
  • the indication information includes at least one of the following: a delay of the feedback information feedback by the terminal, whether the terminal performs pre-session detection when performing feedback information feedback, and a type of pre-session detection when the terminal performs feedback information feedback.
  • the parameter configuration of the pre-session detection is performed by the terminal when feedback information is fed back.
  • the base station may arbitrarily combine the content included in the indication information in an actual application.
  • Step 12 Receive feedback information sent by the terminal according to the indication information in the downlink control information.
  • the feedback information referred to in this embodiment mainly refers to ACK/NACK information transmitted by the terminal according to the data of the received base station during data communication.
  • the base station implements the time and/or specific manner of the ACK/NACK information to be forwarded by the terminal, and informs the terminal through the downlink control information, so that the terminal performs the ACK/NACK information feedback according to the agreed manner, thereby ensuring that the base station can be accurate. Receiving the ACK/NACK information sent by the base station ensures the reliability of the communication between the two.
  • the downlink control information carries a first preset number of bits
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits may be directly used to perform the indication of the extension of the feedback of the feedback information, and may also be used to perform the feedback of the feedback information when the extension is in a preset delay set.
  • the formula is usually used: Obtaining a first preset number of bits; wherein
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the terminal can directly obtain the delay in the feedback by directly reading the data in the bit in the indication information by using the received indication information, for example, the delay of the terminal optional feedback is 1 subframe and 2 Sub-frames, at this time, the base station can use one bit to perform the indication of the degree of extension of the feedback. When the bit is 0, it indicates that the delay of the feedback of the terminal is 1 subframe; when the bit is 1, it indicates the feedback of the terminal.
  • the time extension is 2 subframes.
  • the formula is usually used: Obtaining a first preset number of bits; where x is a first preset number, and K is a number of parameters in a preset delay set.
  • the terminal after receiving the indication information, the terminal reads the information of the corresponding bit, and then finds the corresponding feedback time extension in the delay set according to the information of the bit.
  • the delay set is ⁇ 1 OFDM (Orthogonal frequency-division multiplexing) symbol bit, 2 OFDM symbol bits, 4 OFDM symbol bits, 6 OFDM symbol bits ⁇ , and 0, 1, 2, and 3 are respectively used as The identifier of each feedback time delay in the delay set.
  • the bit in the read indication information is 01.
  • the extension of the feedback used by the terminal is 2 OFDM symbol bits. If the bit is 11, it indicates that the delay used by the terminal is 6 OFDM symbols.
  • the foregoing delay set may be predefined, that is, the base station and the terminal are known; or may be configured by using a signaling, and the specific implementation manner is:
  • the base station Before step 11, the base station sends radio resource control (RRC) signaling carrying a delay set to the terminal.
  • RRC radio resource control
  • the set of delays is semi-statically configured through RRC signaling.
  • the above-mentioned feedback time extension is the number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal preset by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback time is the time when the terminal can perform the feedback of the feedback information at the earliest.
  • the earliest feedback time of the subframe n is the subframe n+4.
  • the downlink control information carries a second preset number of bits, where
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the downlink control information carries a third preset number. Bit; among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • the base station can use the 2 bits for the LBT type when transmitting the indication information.
  • the identifier of the parameter configuration when each LBT type has multiple parameter configurations, the agreed bit can be used to identify the parameter configuration.
  • a bit is used for joint indication, and A bit can indicate 2A states. One state indicates that the terminal does not need to perform LBT, and other states indicate that the terminal performs LBT type and/or LBT parameter configuration.
  • the base station indicates the delay of the ACK/NACK feedback by the terminal through the 3-bit in the downlink control information.
  • the feedback time extension is the number of TTIs that differ between the earliest feedback time and the first feedback time (ie, the time at which the base station presets the ACK/NACK feedback by the base station).
  • the base station schedules downlink data transmission in TTI n, and indicates feedback delay in bit 010 in the corresponding downlink control information.
  • the earliest feedback time is TTI n+4.
  • the terminal may determine, according to bit 010 in the downlink control information, that the actual earliest feedback time and the first feedback moment are different by two TTIs, and the terminal shall perform ACK/NACK feedback in TTI n+6.
  • the base station On the unlicensed carrier, the base station indicates the delay of the ACK/NACK feedback by the terminal in the downlink control information by using four bits, and the delay of the feedback is the first feedback time and the earliest feedback time. The number of sub-frames that differ between each other. As shown in FIG. 3, the base station schedules downlink data transmission in subframe n and subframe n+1, and in the downlink control information corresponding to subframe n, the feedback delay is indicated by bit 0010, and corresponds to subframe n+1. In the downlink control information, the feedback delay is indicated by the bit 0001.
  • the earliest feedback time of the subframe n is the subframe n+4; the earliest feedback moment of the subframe n+1 is the subframe n+5.
  • the terminal determines, according to the downlink control information, that the earliest feedback time of the subframe n is different from the first feedback time by two subframes; the earliest feedback time of the subframe n+1 is different from the first feedback moment by one subframe,
  • the first feedback time of the subframe n and the subframe n+1 is the subframe n+6, and the terminal can perform the ACK/NACK feedback of the subframe n and the subframe n+1 in the subframe n+6 at the earliest. Further, if the terminal fails for the LBT of the subframe n+6, the ACK/NACK may also be pushed back.
  • the base station indicates whether the terminal performs LBT and LBT types by using 2 bits in the downlink control information. For example, the base station does not need to perform LBT when the terminal feeds back the ACK/NACK through the bit 00 in the subframe n, or performs the type 2 LBT when the terminal indicates the ACK/NACK feedback by the terminal 01; or indicates the terminal feedback ACK/NACK through the bit 10.
  • bit 11 is in a reserved state and does not indicate any information.
  • the base station may indicate only 1 bit in the downlink control information. For example, the bit 0 indicates that the terminal does not perform LBT when feeding back ACK/NACK, and the terminal 1 instructs the terminal to perform type 2 LBT.
  • the base station indicates in the downlink control information that the terminal does not perform LBT by bit 0, and indicates that the terminal performs type 4 LBT by bit 1.
  • the base station indicates, in the downlink control information, that the terminal performs type 2 LBT by bit 0, and indicates that the terminal performs type 4 LBT by bit 1.
  • the base station indicates which LBT priority type transmission feedback information is used when the terminal feeds back the ACK/NACK by 2 bits.
  • the bit 00 is used to indicate that the terminal uses the LBT priority type 1 when feeding back the ACK/NACK
  • the bit is used to indicate that the terminal uses the LBT priority type 2 when feeding back the ACK/NACK
  • the bit 10 is used to indicate that the terminal uses the LBT priority when feeding back the ACK/NACK.
  • the LBT type of the terminal indicated by the base station in a feedback window should be the same.
  • the foregoing example only provides an implementation method in which only one type of indication information is included in the downlink control information.
  • the downlink control information may include multiple control information at the same time, for example, in combination with the foregoing case 2 and case 3,
  • the base station may include 4-bit information for indicating the ACK/NACK feedback delay in the downlink control information of the subframe n, and further includes 2-bit information for indicating whether the LBT and the specific LBT type are performed when the terminal feeds back the ACK/NACK.
  • the specific bit indication manner given in the above example is only one of the possibilities. Others based on the idea of the present disclosure, but the specific indication bit manner and the inconsistency in this embodiment should also be included in the protection scope of the present disclosure. Inside.
  • an embodiment of the present disclosure provides a base station 40, including:
  • the first sending module 41 is configured to send downlink control information to the terminal, where the downlink control information includes indication information for instructing the terminal to perform information feedback, where
  • the indication information includes at least one of the following: a delay of the feedback information feedback by the terminal, whether the terminal performs pre-session detection when performing feedback information feedback, a type of pre-session detection when the terminal performs feedback information feedback, and the terminal is performing. Parameter configuration for pre-session detection when feedback information is fed back;
  • the first receiving module 42 is configured to receive feedback information that is sent by the terminal according to the indication information in the downlink control information.
  • the indication information includes a time delay in which the terminal performs the feedback of the feedback information, where the downlink control information sent by the first sending module 41 carries a first preset number of bits, where
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates the feedback when the feedback information is extended
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the extension is in the preset time delay set
  • x is the first preset number
  • K is the number of parameters in the preset delay set.
  • the first sending module 41 further sends the radio resource control signaling carrying the delay set to the terminal before sending the downlink control information.
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal preset by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes: when the terminal performs the pre-session detection, the downlink control information sent by the first sending module 41 carries a second preset number of bits;
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the indication information includes a type of the pre-session detection and/or a parameter configuration of the pre-session detection when the terminal performs the feedback of the feedback information, and the downlink control sent by the first sending module 41
  • the information carries a third preset number of bits; wherein
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • the embodiment of the base station is a base station corresponding to the foregoing method embodiment. All the implementation manners in the foregoing method embodiments are applicable to the embodiment of the base station, and the same technical effects can be achieved.
  • this embodiment provides a base station, including:
  • processor 51 a processor 51; and a memory 53 connected to the processor 51 via a bus interface 52, the memory 53 for storing programs and data used by the processor 51 when performing operations, when the processor 51 calls and When executing the programs and data stored in the memory 53, the following processes are performed:
  • the downlink control information is sent to the terminal by the transceiver 54.
  • the downlink control information includes indication information for instructing the terminal to perform information feedback, and the indication information includes at least one of the following: a delay of the feedback information feedback by the terminal. Whether the terminal performs pre-session detection when performing feedback information feedback, the type of pre-session detection when the terminal performs feedback information feedback, and the parameter configuration of the pre-session detection when the terminal performs feedback information feedback;
  • the transceiver 54 is coupled to the bus interface 52 for receiving and transmitting data under the control of the processor 51.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 51 and various circuits of memory represented by memory 53.
  • 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 54 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 51 is responsible for managing the bus architecture and the usual processing, and the memory 53 can store data used by the processor 51 when performing operations.
  • an embodiment of the present disclosure provides an information feedback method, which is applied to a terminal side, and includes:
  • Step 61 Receive downlink control information sent by the base station, where the downlink control information includes indication information for instructing the terminal to perform information feedback, where the indication information includes at least one of the following: a delay of the feedback information feedback by the terminal, and the terminal Whether to perform pre-session detection when performing feedback information feedback, a type of pre-session detection when the terminal performs feedback information feedback, and a parameter configuration of pre-session detection when the terminal performs feedback information feedback;
  • Step 62 Send feedback information to the base station according to the indication information in the downlink control information.
  • the indication information includes a time delay of the feedback information sent by the terminal, where the downlink control information carries a first preset number of bits, where
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates a feedback time extension of the feedback information
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the first preset number of bits indicates an identifier of the feedback time extension of the feedback information in a preset delay set
  • x is the first preset number
  • K is the number of parameters in the preset delay set.
  • the step of receiving the downlink control information sent by the base station further includes:
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal preset by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes, when the terminal performs the pre-session detection, the downlink control information carries a second preset number of bits, where
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the indication information includes a type of the pre-session detection and/or a parameter configuration of the pre-session detection when the feedback information is sent by the terminal, where the downlink control information carries a third preset number of bits. ;among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • an embodiment of the present disclosure provides a terminal 70, including:
  • the second receiving module 71 is configured to receive downlink control information sent by the base station, where the downlink control information includes indication information for instructing the terminal to perform information feedback, where the indication information includes at least one of the following: the terminal performs feedback information feedback The delay, whether the terminal performs pre-session detection when performing feedback feedback, the type of pre-session detection when the terminal performs feedback feedback, and the parameter configuration of the pre-session detection when the terminal performs feedback feedback;
  • the second sending module 72 is configured to send feedback information to the base station according to the indication information in the downlink control information.
  • the indication information includes a time delay of the feedback information of the terminal, and the downlink control information received by the second receiving module 71 carries a first preset number of bits, where
  • the first preset number of bits is used to perform an indication of a feedback information feedback delay.
  • the first preset number of bits indicates a feedback time extension of the feedback information
  • x is the first preset number, and M is the number of time units included in the extension of the maximum feedback;
  • the rounding up function is performed;
  • the feedback time extension is a time unit in one of a subframe, a transmission time interval, and an orthogonal frequency division multiplexing symbol bit.
  • the first preset number of bits indicates an identifier of the feedback time extension of the feedback information in a preset delay set
  • x is the first preset number
  • K is the number of parameters in the preset delay set.
  • the second receiving module 71 further receives the radio resource control signaling that carries the delay set sent by the base station before receiving the downlink control information.
  • the feedback time extension is a number of time units in which the downlink transmission time is different from the feedback information feedback time of the terminal preset by the base station;
  • the delay in the feedback is the number of time units in which the earliest feedback time is different from the feedback information feedback time preset by the base station;
  • the downlink transmission time is a transmission time of the downlink control information or a transmission time of downlink data corresponding to the feedback information
  • the earliest feedback moment is the moment when the terminal can perform feedback of the feedback information at the earliest.
  • the indication information includes: when the terminal performs the pre-session detection when the feedback information is feedback, the downlink control information received by the second receiving module 71 carries a second preset number of bits;
  • the second preset number of bits is used to indicate whether the terminal performs pre-session detection when performing feedback information feedback.
  • the indication information includes a type of the pre-session detection and/or a parameter configuration of the pre-session detection when the feedback information is sent by the terminal, and the downlink control information received by the second receiving module 71 carries the third a preset number of bits; among them,
  • the third preset number of bits is used to indicate the type of pre-session detection and/or the parameter configuration of the pre-session detection when the terminal performs feedback information feedback.
  • the embodiment of the terminal is a terminal corresponding to the foregoing method embodiment. All the implementation manners in the foregoing method embodiments are applicable to the embodiment of the terminal, and the same technical effects can be achieved.
  • an embodiment of the present disclosure provides a terminal, including:
  • a processor 81 a processor 81; and a memory 83 connected to the processor 81 via a bus interface 82, the memory 83 for storing programs and data used by the processor 81 when performing operations, when the processor 81 calls and When executing the programs and data stored in the memory 83, the following process is performed:
  • the downlink control information includes indication information for instructing the terminal to perform information feedback, where the indication information includes at least one of the following: a delay of the feedback information feedback by the terminal, Whether the terminal performs pre-session detection when performing feedback information feedback, the type of pre-session detection when the terminal performs feedback information feedback, and the parameter configuration of the pre-session detection when the terminal performs feedback information feedback;
  • the feedback information is transmitted to the base station by the transceiver 84 according to the indication information in the downlink control information.
  • the transceiver 84 is coupled to the bus interface 82 for receiving and transmitting data under the control of the processor 81.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 81 and various circuits of memory represented by memory 83.
  • 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 84 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 user interface 85 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 81 is responsible for managing the bus architecture and general processing, and the memory 83 can store data used by the processor 81 when performing operations.

Abstract

提供了一种信息反馈方法、基站、终端及存储媒介,该信息反馈方法,包括:发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;接收终端根据所述下行控制信息中的指示信息发送的反馈信息。

Description

信息反馈方法、基站、终端及存储媒介
相关申请的交叉引用
本申请主张在2016年4月1日在中国提交的中国专利申请号No.201610203320.6的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,特别涉及一种信息反馈方法、基站、终端及存储媒介。
背景技术
随着新的业务需求的持续出现和丰富,对未来移动通信系统提出了更高的性能需求,例如更高的峰值速率、更好的用户体验速率、更小的时延、更高的可靠性、更高的频谱效率和更高的能耗效率等,并需要支持更多的用户接入以及使用各种业务类型。为了支持数量巨大的各类终端连接以及不同的业务类型,上下行资源的灵活配置成为技术发展的一大趋势。未来的系统资源可以根据业务的不同,划分成不同的子带,并在子带上划分长度不同的传输时间间隔(Transmission Time Interval,TTI),以满足多种业务需求。
为了支持长期演进(Long Term Evolution,LTE)系统部署在非授权频谱资源上进行传输,目前定义了授权载波辅助接入(Licensed Assisted Access,LAA)的方式,即用户使用非授权载波时,必须先接入一个授权的主载波,非授权载波只能作为辅载波。
非授权频谱没有规划具体的应用系统,可以为多种通信系统如蓝牙系统、WiFi系统等共享,多种系统间通过抢占资源的方式使用共享的非授权频谱资源。为了保证LTE用户的传输性能以及更好的使用非授权频段,在非授权频谱上,传输之前需要使用会话前检测(LBT,Listen Before Talk)机制。LBT过程是设备在使用信道进行传输之前进行的信道忙闲评估(clear channel assessment,CCA),其通过能量检测等方式判断信道上是否存在其它信号,以决定信道是被占用的还是空闲的,如果信道为空闲才能进行数据传输。欧 洲和日本的规定在非授权频段上必须使用LBT。除了规则的限定,使用LBT进行载波感知也是非授权频段上进行公平共享的一种方式,因此,LBT是非授权频段上进行全球统一解决方案的必要特性。
对于LAA上行,目前还没确定是否需要进行LBT及具体的LBT类型。一方面,对于终端侧,由于通过基站调度进行上行传输,而上行调度信令在数据传输前需要至少提前4个子帧传输,因此基站在调度终端时无法判断终端侧信道是否被占用,部分地区也规定每个站点在传输之前都要进行LBT,这也有利于消除部分隐藏节点,提升共存性能;另一方面,当终端仅传输ACK/NACK(确认字符/非确认字符)反馈信息且占用很短的时间长度时,类似于WiFi,反馈信息经过16μs的时延后可以不进行LBT直接反馈,在LAA中传输反馈信息时也有可能采用该机制。
现有的LTE频分双工/时分双工(FDD/TDD)的ACK/NACK反馈时序
在LTE Rel-8系统中,对于FDD系统,由于每个子帧中都有上行资源,因此,编号为n的下行子帧的ACK/NACK反馈信息在编号为n+h的上行子帧中进行传输。对于TDD系统,由于上下行传输共享频域资源,不同下行子帧的ACK/NACK反馈信息可能需要在同一上行子帧中进行传输,如表1所示,根据编号为n的上行子帧所对应的H:{h0,h1,…hG-1}集合中每个h值,可以确定需要在该上行子帧中进行ACK/NACK反馈的下行子帧(即编号为n-h的下行子帧,包括特殊子帧在内),则同一上行子帧需要反馈G个下行子帧的ACK/NACK反馈信息,G即为集合H中的元素个数,对不同的上行子帧和不同的TDD上下行配置取值不一定相同。
Figure PCTCN2017075922-appb-000001
Figure PCTCN2017075922-appb-000002
表1 TDD的下行相关H值集合
需要说明的是,上表中的编号是以无线帧为单位的,编号为n-k的子帧,如果n-k小于0,则表明为前一个无线帧中的子帧。
随着移动技术的发展,未来移动通信系统需要提供更低的网络时延并支持更丰富的业务类型,成为技术发展的趋势。未来的通信系统中可能会支持动态TTI长度传输,由于将使用灵活的传输结构,无法预先定义终端的反馈时刻,一方面,由于非授权载波上使用的帧结构不是固定的帧结构,终端进行ACK/NACK反馈的时间无法预先定义;另一方面,目前还不确定终端传输反馈信息时是否进行LBT或者进行LBT的类型,如果LAA中对反馈信息传输支持了LBT多种行为,则终端无法确定在传输反馈信息时是否使用LBT及使用LBT的类型。
发明内容
本公开要解决的技术问题是提供一种信息反馈方法、基站及终端,用以解决现有的终端不能准确的进行ACK/NACK反馈,不能保证通信的准确性的问题。
为了解决上述技术问题,本公开实施例提供一种信息反馈方法,包括:
发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息,所述指示信息包括:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置中的至少一者;
接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
进一步地,所述指示信息包括终端进行反馈信息反馈的时延时,所述下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长 度;
利用公式:
Figure PCTCN2017075922-appb-000003
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000004
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
利用公式:
Figure PCTCN2017075922-appb-000005
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数;
Figure PCTCN2017075922-appb-000006
为向上取整函数。
进一步地,在所述发送下行控制信息给终端的步骤前,所述信息反馈方法还包括:
发送携带时延集合的无线资源控制信令给终端。
进一步地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
进一步地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
进一步地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
本公开实施例提供一种基站,包括:
第一发送模块,用于发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息,所述指示信息包括:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置中的至少一者;
第一接收模块,用于接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
进一步地,所述指示信息包括终端进行反馈信息反馈的时延时,所述第一发送模块发送的下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
利用公式:
Figure PCTCN2017075922-appb-000007
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000008
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
利用公式:
Figure PCTCN2017075922-appb-000009
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数;
Figure PCTCN2017075922-appb-000010
为向上取整函数。
进一步地,所述第一发送模块在发送下行控制信息前,还发送携带时延集合的无线资源控制信令给终端。
进一步地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的 下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
进一步地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述第一发送模块发送的下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
进一步地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述第一发送模块发送的下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
本公开实施例提供一种信息反馈方法,包括:
接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置中的至少一者;
根据所述下行控制信息中的指示信息,向基站发送反馈信息。
进一步地,所述指示信息包括终端进行反馈信息反馈的时延时,所述下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
利用公式:
Figure PCTCN2017075922-appb-000011
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000012
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长 度在预设的时延集合中的标识;
利用公式:
Figure PCTCN2017075922-appb-000013
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数;
Figure PCTCN2017075922-appb-000014
为向上取整函数。
进一步地,在所述接收基站发送的下行控制信息的步骤前,所述信息反馈方法还包括:
接收基站发送的携带时延集合的无线资源控制信令。
进一步地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
进一步地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
进一步地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
本公开实施例提供一种终端,包括:
第二接收模块,用于接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置中的至少一者;
第二发送模块,用于根据所述下行控制信息中的指示信息,向基站发送反馈信息。
进一步地,所述指示信息包括终端进行反馈信息反馈的时延时,所述第二接收模块接收的下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
利用公式:
Figure PCTCN2017075922-appb-000015
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000016
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
进一步地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
利用公式:
Figure PCTCN2017075922-appb-000017
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数;
Figure PCTCN2017075922-appb-000018
为向上取整函数。
进一步地,所述第二接收模块在接收下行控制信息前,还接收基站发送的携带时延集合的无线资源控制信令。
进一步地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
进一步地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述第二接收模块接收的下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进 行会话前检测。
进一步地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述第二接收模块接收的下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
本公开的有益效果是:
上述方案,通过在基站给终端发送的下行控制信息中进行终端反馈信息的指示,终端依据该指示进行反馈信息的发送,保证了基站可以准确的接收到终端的反馈信息,从而保证了二者通信的可靠性。
附图说明
图1表示本公开实施例的信息反馈方法的流程示意图;
图2表示本公开实施例的反馈时延指示方式示意图;
图3表示本公开实施例的另一反馈时延指示方式示意图;
图4表示本公开实施例的基站的模块示意图;
图5表示本公开实施例的基站的结构示意图;
图6表示本公开实施例的信息反馈方法的流程示意图;
图7表示本公开实施例的终端的模块示意图;
图8表示本公开实施例的终端的结构示意图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚,下面将结合附图及具体实施例对本公开进行详细描述。
本公开针对现有的终端不能准确的进行ACK/NACK反馈,不能保证通信的准确性的问题,提供一种信息反馈方法、基站及终端。
如图1所示,本公开实施例的信息反馈方法,应用于基站侧,包括:
步骤11,发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息;
具体地,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置。
需要说明的是,基站可以在实际应用中,对指示信息中所包含的内容进行任意的组合。
步骤12,接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
本实施例中所说的反馈信息主要指的是在数据通信时,终端根据接收的基站的数据发送的ACK/NACK信息。
基站通过实现约定终端反馈ACK/NACK信息的时间和/或具体方式,并通过下行控制信息告知终端,使得终端在进行ACK/NACK信息反馈时,按照约定的方式进行,以此保证了基站可以准确的接收到基站发送的ACK/NACK信息,保证了二者通信的可靠性。
可选地,当所述指示信息包括终端进行反馈信息反馈的时延时,所述下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
具体地,所述第一预设个数的比特位可以直接用于进行反馈信息的反馈时延长度的指示,也可以用于进行所述反馈信息的反馈时延长度在预设的时延集合中的标识的指示。
1、当所述第一预设个数的比特位指示所述反馈信息的反馈时延长度时,通常利用公式:
Figure PCTCN2017075922-appb-000019
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000020
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
此种情况下,终端通过接收到的指示信息,直接读取指示信息中的比特位中的数据就可以获取到反馈时延长度,例如,终端可选的反馈时延长度为1个子帧和2个子帧,此时,基站可以采用一个比特位进行反馈时延长度的指示,当比特位为0时,表示终端的反馈时延长度为1个子帧;当比特位为1时,表示终端的反馈时延长度为2个子帧。
2、当第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识时,通常利用公式:
Figure PCTCN2017075922-appb-000021
获取比特位的第一预设个数;其中,x为第一预设个数,K为预设的时延集合中的参数的个数。
此种情况下,终端在收到指示信息后,读取对应的比特位的信息,然后根据比特位的信息在时延集合中找到对应的反馈时延长度即可。例如:时延集合为{1个OFDM(Orthogonal frequency-division multiplexing)符号位、2个OFDM符号位、4个OFDM符号位、6个OFDM符号位},且分别用0、1、2、3作为时延集合中每个反馈时延长度的标识,当基站在收到指示信息后,读取指示信息中的比特位为01,此时,表明终端使用的反馈时延长度为2个OFDM符号位;若比特位为11,表明终端使用的反馈时延长度为6个OFDM符号位。
需要说明的是,上述的时延集合可以为预先定义的,即基站和终端均知道的;也可以是通过信令进行配置的,具体地实现方式为:
在步骤11前,基站发送携带时延集合的无线资源控制(RRC)信令给终端。
需要说明的是,当时延集合需要随着网络情况进行调整时,可选地,为通过RRC信令半静态的配置时延集合。
还需要说明的是,上述的反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻,例如,子帧n的最早反馈时刻为子帧n+4。
可选地,当指示信息中包括终端在进行反馈信息反馈时是否进行会话前检测时,所述下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
假设基站约定的终端只用一种LBT机制时,可以只通过一个比特位标识是否进行LBT,例如,比特位为0表示不进行LBT,比特位为1表示进行LBT。
可选地,当所述指示信息中包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
需要说明的是,在此种情况下,当假设基站约定的终端在进行反馈时必须进行LBT机制,且定义了4种LBT类型,基站在发送指示信息时,可以采用2个比特位进行LBT类型的标识;而当每个LBT类型有多种参数配置时,可以采用约定的比特位进行参数配置的标识。
以上所述的是LBT类型以及参数配置单独指示的情况,还可以采用联合编码的方式将是否进行LBT以及LBT的类型和/或配置一同指示。例如用A个比特位进行联合指示,A个比特位可以指示2A种状态,其中一种状态指示终端不需要进行LBT,其它的状态指示终端进行LBT的类型和/或LBT的参数配置。
在实际应用中,对本公开的具体应用进行举例说明如下。
情况一:
在授权载波上,假设基站在下行控制信息中通过3比特指示终端进行ACK/NACK反馈的时延。所述反馈时延长度为最早反馈时刻和第一反馈时刻(即基站预先设定的终端进行ACK/NACK反馈的时刻)之间相差的TTI个数。如图2所示,基站在TTI n中调度了下行数据传输,并且在对应的下行控制信息中通过比特010指示反馈时延,考虑到终端的接收处理时间,最早的反馈时刻为TTI n+4,则终端可根据下行控制信息中的比特010确定实际最早反馈时刻和第一反馈时刻之间相差了2个TTI,则终端应当在TTI n+6中进行ACK/NACK反馈。
情况二:
在非授权载波上,基站在下行控制信息中通过4比特指示终端进行ACK/NACK反馈的时延,所述反馈时延长度为第一反馈时刻和最早反馈时刻 之间相差的子帧个数。如图3所示,基站在子帧n和子帧n+1中调度了下行数据传输,并且在子帧n对应的下行控制信息中通过比特0010指示反馈时延,在子帧n+1对应的下行控制信息中通过比特0001指示反馈时延,考虑到终端的接收处理时间,子帧n最早的反馈时刻为子帧n+4;子帧n+1最早的反馈时刻为子帧n+5,则终端根据下行控制信息确定子帧n的最早反馈时刻和第一反馈时刻之间相差了2个子帧;子帧n+1的最早反馈时刻和第一反馈时刻之间相差了1个子帧,则子帧n和子帧n+1的第一反馈时刻均为子帧n+6,终端最早可以在子帧n+6中进行子帧n和子帧n+1的ACK/NACK反馈。进一步地,如果终端针对子帧n+6的LBT失败,还可以推后传输ACK/NACK。
情况三:
假设终端在非授权载波上反馈ACK/NACK时,支持不进行LBT以及类型2和类型4的LBT,基站在下行控制信息中通过2比特指示终端是否进行LBT及LBT的类型。例如,基站在子帧n中通过比特00指示终端反馈ACK/NACK时不需要进行LBT,或者通过比特01指示终端反馈ACK/NACK时进行类型2的LBT;或者通过比特10指示终端反馈ACK/NACK时进行类型4的LBT,比特11为预留的状态,不指示任何信息。
如果终端反馈ACK/NACK时支持不进行LBT和类型2的LBT,则基站在下行控制信息中可以仅通过1比特指示。例如,通过比特0指示终端反馈ACK/NACK时不进行LBT,通过比特1指示终端进行类型2的LBT。或者,如果终端支持不进行LBT和类型4的LBT,则基站在下行控制信息中通过比特0指示终端不进行LBT,通过比特1指示终端进行类型4的LBT。类似的,如果终端支持类型2和类型4的LBT,则基站在下行控制信息中通过比特0指示终端进行类型2的LBT,通过比特1指示终端进行类型4的LBT。
情况四:
假设终端在非授权载波上反馈ACK/NACK时,仅支持类型4的LBT,同时支持4种不同的LBT优先级参数,例如表2中所示。
Figure PCTCN2017075922-appb-000022
Figure PCTCN2017075922-appb-000023
表2 LBT优先级类型
基站在下行控制信令中,通过2比特指示终端反馈ACK/NACK时使用哪种LBT优先级类型传输反馈信息。例如通过比特00指示终端反馈ACK/NACK时使用LBT优先级类型1,或者通过比特01指示终端反馈ACK/NACK时使用LBT优先级类型2,或者通过比特10指示终端反馈ACK/NACK时使用LBT优先级类型3,或者通过比特11指示终端反馈ACK/NACK时使用LBT优先级类型4。
需要说明的是,上述具体应用中,约定基站在一个反馈窗口内指示的终端的LBT类型应该是相同的。
还需要说明的是,上述举例只给出了下行控制信息中仅包含一种指示信息的实施方法,实际上,下行控制信息中可以同时包含多种控制信息,例如结合上述情况二和情况三,基站在子帧n的下行控制信息中可以同时包含4比特信息用于指示ACK/NACK反馈时延,同时还包括2比特信息用于指示终端反馈ACK/NACK时是否进行LBT和具体的LBT类型。同时,上述举例所给出的具体的比特指示方式只是其中的一种可能,其它基于本公开思想的,但是具体指示比特方式和本实施例中不一致的情况也应当包含在本公开的保护范围之内。
如图4所示,本公开实施例提供一种基站40,包括:
第一发送模块41,用于发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息;其中,
所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
第一接收模块42,用于接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
可选地,所述指示信息包括终端进行反馈信息反馈的时延时,所述第一发送模块41发送的下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
具体地,当所述第一预设个数的比特位指示所述反馈信息的反馈时延长度时;
利用公式:
Figure PCTCN2017075922-appb-000024
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000025
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
具体地,当所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识时;
利用公式:
Figure PCTCN2017075922-appb-000026
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数。
可选地,所述第一发送模块41在发送下行控制信息前,还发送携带时延集合的无线资源控制信令给终端。
具体地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
可选地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述第一发送模块41发送的下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
可选地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述第一发送模块41发送的下行控 制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
需要说明的是,该基站的实施例是与上述方法实施例一一对应的基站,上述方法实施例中所有实现方式均适用于该基站的实施例中,也能达到相同的技术效果。
如图5所示,本实施例提供一种基站,包括:
处理器51;以及通过总线接口52与所述处理器51相连接的存储器53,所述存储器53用于存储所述处理器51在执行操作时所使用的程序和数据,当处理器51调用并执行所述存储器53中所存储的程序和数据时,执行下列过程:
通过收发机54发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
通过收发机54接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
其中,收发机54与总线接口52连接,用于在处理器51的控制下接收和发送数据。
需要说明的是,在图5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51代表的一个或多个处理器和存储器53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54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51负责管理总线架构和通常的处理,存储器53可以存储处理器51在执行操作时所使用的数据。
本领域技术人员可以理解,实现上述实施例的全部或者部分步骤可以通 过硬件来完成,也可以通过计算机程序来指示相关的硬件来完成,所述计算机程序包括执行上述方法的部分或者全部步骤的指令;且该计算机程序可以存储于一可读存储介质中,存储介质可以是任何形式的存储介质。
如图6所示,本公开实施例提供一种信息反馈方法,应用于终端侧,包括:
步骤61,接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
步骤62,根据所述下行控制信息中的指示信息,向基站发送反馈信息。
可选地,所述指示信息包括终端进行反馈信息反馈的时延时,所述下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
具体地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
利用公式:
Figure PCTCN2017075922-appb-000027
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000028
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
具体地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
利用公式:
Figure PCTCN2017075922-appb-000029
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数。
当所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识时,可选地,在所述接收基站发送的下行控制信息的步骤前,所述信息反馈方法还包括:
接收基站发送的携带时延集合的无线资源控制信令。
具体地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
可选地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
可选地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
其中,上述实施例中的所有关于终端的描述,均适用于该应用于终端侧的信息反馈方法的实施例中,也能达到与其相同的技术效果。
如图7所示,本公开实施例提供一种终端70,包括:
第二接收模块71,用于接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
第二发送模块72,用于根据所述下行控制信息中的指示信息,向基站发送反馈信息。
可选地,所述指示信息包括终端进行反馈信息反馈的时延时,所述第二接收模块71接收的下行控制信息中携带有第一预设个数的比特位;其中,
所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
具体地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
利用公式:
Figure PCTCN2017075922-appb-000030
获取比特位的第一预设个数;其中,
x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
Figure PCTCN2017075922-appb-000031
为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
具体地,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
利用公式:
Figure PCTCN2017075922-appb-000032
获取比特位的第一预设个数;其中,
x为第一预设个数,K为预设的时延集合中的参数的个数。
可选地,所述第二接收模块71在接收下行控制信息前,还接收基站发送的携带时延集合的无线资源控制信令。
具体地,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
可选地,所述指示信息包括终端在进行反馈信息反馈时是否进行会话前检测时,所述第二接收模块71接收的下行控制信息中携带有第二预设个数的比特位;其中,
所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
可选地,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述第二接收模块71接收的下行控制信息中携带有第三预设个数的比特位;其中,
所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
需要说明的是,该终端的实施例是与上述方法实施例一一对应的终端,上述方法实施例中所有实现方式均适用于该终端的实施例中,也能达到相同的技术效果。
如图8所示,本公开实施例提供一种终端,包括:
处理器81;以及通过总线接口82与所述处理器81相连接的存储器83,所述存储器83用于存储所述处理器81在执行操作时所使用的程序和数据,当处理器81调用并执行所述存储器83中所存储的程序和数据时,执行下列过程:
通过收发机84接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时是否进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
根据所述下行控制信息中的指示信息,通过收发机84向基站发送反馈信息。
其中,收发机84与总线接口82连接,用于在处理器81的控制下接收和发送数据。
需要说明的是,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器81代表的一个或多个处理器和存储器83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84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。针对不同的终端,用户接口85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81负责管理总线架构和通常的处理,存储器83可以存储处理器81在执行操作时所使用的数据。
本领域技术人员可以理解,实现上述实施例的全部或者部分步骤可以通过硬件来完成,也可以通过计算机程序来指示相关的硬件来完成,所述计算机程序包括执行上述方法的部分或者全部步骤的指令;且该计算机程序可以存储于一可读存储介质中,存储介质可以是任何形式的存储介质。
以上所述的是本公开的可选实施方式,应当指出对于本技术领域的普通 人员来说,在不脱离本公开所述的原理前提下还可以作出若干改进和润饰,这些改进和润饰也在本公开的保护范围内。

Claims (36)

  1. 一种信息反馈方法,包括:
    发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
  2. 根据权利要求1所述的信息反馈方法,其特征在于,所述指示信息包括终端进行反馈信息反馈的时延时,所述下行控制信息中携带有第一预设个数的比特位;其中,
    所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
  3. 根据权利要求2所述的信息反馈方法,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
    利用公式:
    Figure PCTCN2017075922-appb-100001
    获取比特位的第一预设个数;其中,
    x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
    Figure PCTCN2017075922-appb-100002
    为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
  4. 根据权利要求2所述的信息反馈方法,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
    利用公式:
    Figure PCTCN2017075922-appb-100003
    获取比特位的第一预设个数;其中,
    x为第一预设个数,K为预设的时延集合中的参数的个数;
    Figure PCTCN2017075922-appb-100004
    为向上取整函数。
  5. 根据权利要求4所述的信息反馈方法,其中,在所述发送下行控制信息给终端的步骤前,所述信息反馈方法还包括:
    发送携带时延集合的无线资源控制信令给终端。
  6. 根据权利要求3或4所述的信息反馈方法,其中,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单 位的个数;或者
    所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
    所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
    所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
  7. 根据权利要求1所述的信息反馈方法,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测时,所述下行控制信息中携带有第二预设个数的比特位;其中,
    所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
  8. 根据权利要求1所述的信息反馈方法,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述下行控制信息中携带有第三预设个数的比特位;其中,
    所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
  9. 一种基站,包括:
    第一发送模块,用于发送下行控制信息给终端,所述下行控制信息中包含用于指示所述终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    第一接收模块,用于接收终端根据所述下行控制信息中的指示信息发送的反馈信息。
  10. 根据权利要求9所述的基站,其中,所述指示信息包括终端进行反馈信息反馈的时延时,所述第一发送模块发送的下行控制信息中携带有第一预设个数的比特位;其中,
    所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
  11. 根据权利要求10所述的基站,其中,所述第一预设个数的比特位指 示所述反馈信息的反馈时延长度;
    利用公式:
    Figure PCTCN2017075922-appb-100005
    获取比特位的第一预设个数;其中,
    x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
    Figure PCTCN2017075922-appb-100006
    为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
  12. 根据权利要求10所述的基站,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
    利用公式:
    Figure PCTCN2017075922-appb-100007
    获取比特位的第一预设个数;其中,
    x为第一预设个数,K为预设的时延集合中的参数的个数;
    Figure PCTCN2017075922-appb-100008
    为向上取整函数。
  13. 根据权利要求12所述的基站,其中,所述第一发送模块在发送下行控制信息前,还发送携带时延集合的无线资源控制信令给终端。
  14. 根据权利要求11或12所述的基站,其中,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
    所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
    所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
    所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
  15. 根据权利要求9所述的基站,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测时,所述第一发送模块发送的下行控制信息中携带有第二预设个数的比特位;其中,
    所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
  16. 根据权利要求9所述的基站,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述第一发送模块发送的下行控制信息中携带有第三预设个数的比特位;其中,
    所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话 前检测的类型和/或会话前检测的参数配置。
  17. 一种信息反馈方法,包括:
    接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    根据所述下行控制信息中的指示信息,向基站发送反馈信息。
  18. 根据权利要求17所述的信息反馈方法,其中,所述指示信息包括终端进行反馈信息反馈的时延时,所述下行控制信息中携带有第一预设个数的比特位;其中,
    所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
  19. 根据权利要求18所述的信息反馈方法,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
    利用公式:
    Figure PCTCN2017075922-appb-100009
    获取比特位的第一预设个数;其中,
    x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
    Figure PCTCN2017075922-appb-100010
    为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
  20. 根据权利要求18所述的信息反馈方法,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
    利用公式:
    Figure PCTCN2017075922-appb-100011
    获取比特位的第一预设个数;其中,
    x为第一预设个数,K为预设的时延集合中的参数的个数;
    Figure PCTCN2017075922-appb-100012
    为向上取整函数。
  21. 根据权利要求20所述的信息反馈方法,其中,在所述接收基站发送的下行控制信息的步骤前,所述信息反馈方法还包括:
    接收基站发送的携带时延集合的无线资源控制信令。
  22. 根据权利要求19或20所述的信息反馈方法,其中,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
    所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
    所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
    所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
  23. 根据权利要求17所述的信息反馈方法,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测时,所述下行控制信息中携带有第二预设个数的比特位;其中,
    所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
  24. 根据权利要求17所述的信息反馈方法,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述下行控制信息中携带有第三预设个数的比特位;其中,
    所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
  25. 一种终端,包括:
    第二接收模块,用于接收基站发送的下行控制信息,所述下行控制信息中包含用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    第二发送模块,用于根据所述下行控制信息中的指示信息,向基站发送反馈信息。
  26. 根据权利要求25所述的终端,其中,所述指示信息包括终端进行反馈信息反馈的时延时,所述第二接收模块接收的下行控制信息中携带有第一预设个数的比特位;其中,
    所述第一预设个数的比特位用于进行反馈信息反馈时延的指示。
  27. 根据权利要求26所述的终端,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度;
    利用公式:
    Figure PCTCN2017075922-appb-100013
    获取比特位的第一预设个数;其中,
    x为第一预设个数,M为最大反馈时延长度包含的时间单位的个数;
    Figure PCTCN2017075922-appb-100014
    为向上取整函数;所述反馈时延长度以子帧、传输时间间隔和正交频分复用符号位中的一者为时间单位。
  28. 根据权利要求26所述的终端,其中,所述第一预设个数的比特位指示所述反馈信息的反馈时延长度在预设的时延集合中的标识;
    利用公式:
    Figure PCTCN2017075922-appb-100015
    获取比特位的第一预设个数;其中,
    x为第一预设个数,K为预设的时延集合中的参数的个数;
    Figure PCTCN2017075922-appb-100016
    为向上取整函数。
  29. 根据权利要求28所述的终端,其中,所述第二接收模块在接收下行控制信息前,还接收基站发送的携带时延集合的无线资源控制信令。
  30. 根据权利要求27或28所述的终端,其中,所述反馈时延长度为下行传输时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;或者
    所述反馈时延长度为最早反馈时刻与基站预先设定的终端进行反馈信息反馈时刻相差的时间单位的个数;其中,
    所述下行传输时刻为所述下行控制信息的传输时刻或者反馈信息对应的下行数据的传输时刻;
    所述最早反馈时刻为终端最早能进行反馈信息反馈的时刻。
  31. 根据权利要求25所述的终端,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测时,所述第二接收模块接收的下行控制信息中携带有第二预设个数的比特位;其中,
    所述第二预设个数的比特位用于指示终端在进行反馈信息反馈时是否进行会话前检测。
  32. 根据权利要求25所述的终端,其中,所述指示信息包括终端在进行反馈信息反馈时进行会话前检测的类型和/或会话前检测的参数配置时,所述第二接收模块接收的下行控制信息中携带有第三预设个数的比特位;其中,
    所述第三预设个数的比特位用于指示终端在进行反馈信息反馈时的会话前检测的类型和/或会话前检测的参数配置。
  33. 一种基站,包括:
    处理器;
    存储器,存储有能够被所述处理器执行的计算机可读指令,在所述计算机可读指令被执行时,所述处理器:
    发送下行控制信息给终端,所述下行控制信息中包括用于指示所述终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    接收所述终端根据所述下行控制信息中的指示信息发送的反馈信息。
  34. 一种非易失性计算机存储媒介,存储有能够被处理器执行的计算机可读指令,当所述计算机可读指令被处理器执行时,所述处理器:
    发送下行控制信息给终端,所述下行控制信息中包括用于指示所述终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    接收所述终端根据所述下行控制信息中的指示信息发送的反馈信息。
  35. 一种终端,包括:
    处理器;
    存储器,存储有能够被所述处理器执行的计算机可读指令,在所述计算机可读指令被执行时,所述处理器:
    接收基站发送的下行控制信息,所述下行控制信息中包括用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    根据所述下行控制信息中的指示信息,向所述基站发送反馈信息。
  36. 一种非易失性计算机存储媒介,存储有能够被处理器执行的计算 机可读指令,当所述计算机可读指令被处理器执行时,所述处理器:
    接收基站发送的下行控制信息,所述下行控制信息中包括用于指示终端进行信息反馈的指示信息,所述指示信息包括以下中至少之一:终端进行反馈信息反馈的时延、终端在进行反馈信息反馈时进行会话前检测或不进行会话前检测、终端在进行反馈信息反馈时进行会话前检测的类型和终端在进行反馈信息反馈时进行会话前检测的参数配置;
    根据所述下行控制信息中的指示信息,向所述基站发送反馈信息。
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