WO2017031646A1 - 一种信息处理方法、装置和系统 - Google Patents

一种信息处理方法、装置和系统 Download PDF

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Publication number
WO2017031646A1
WO2017031646A1 PCT/CN2015/087863 CN2015087863W WO2017031646A1 WO 2017031646 A1 WO2017031646 A1 WO 2017031646A1 CN 2015087863 W CN2015087863 W CN 2015087863W WO 2017031646 A1 WO2017031646 A1 WO 2017031646A1
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WIPO (PCT)
Prior art keywords
harq feedback
information
user equipment
feedback information
signaling
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PCT/CN2015/087863
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English (en)
French (fr)
Inventor
吴作敏
马莎
李超君
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP15901917.3A priority Critical patent/EP3334122B1/en
Priority to CN201580081387.0A priority patent/CN107710721B/zh
Priority to KR1020187006860A priority patent/KR20180038532A/ko
Priority to PCT/CN2015/087863 priority patent/WO2017031646A1/zh
Publication of WO2017031646A1 publication Critical patent/WO2017031646A1/zh
Priority to US15/900,678 priority patent/US10666398B2/en

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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
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1685Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
    • 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
    • H04L1/0002Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L1/0026Transmission of channel quality indication
    • 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
    • H04L1/0028Formatting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852Delays
    • H04L43/0864Round trip delays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/26Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
    • H04L47/263Rate modification at the source after receiving feedback
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/29Flow control; Congestion control using a combination of thresholds
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40Support for services or applications
    • 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
    • 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
    • H04L1/0025Transmission of mode-switching indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/189Transmission or retransmission of more than one copy of a message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to an information processing method, apparatus, and system.
  • the delay in the mobile network is the key performance indicator (KPI) of the network, which directly affects the user experience.
  • KPI key performance indicator
  • the event triggering delay in the sports interactive game is less than 25ms
  • the demand for delay between car-to-car communication in autonomous driving is less than 30 ms;
  • the Round-Trip Time (RTT) in the remote control requires less than 50ms of delay
  • the demand for delay in smart grid power automation protection is less than 8ms
  • the requirement for delay in call setup in public security is less than 300ms, while the end-to-end (E2E) media file transmission requires less than 150ms for delay.
  • the scheduling interval of the physical layer that has the most obvious impact on the delay in the air interface technology is 10 ms in the Wideband Code Division Multiple Access (WCDMA) to the high speed.
  • High-Speed Packet Access (HSPA) is shortened to 2ms
  • Long Term Evolution (LTE) is shortened to 1ms.
  • the LTE physical layer needs to introduce a Short Transmission Time Interval (TTI) frame structure to further shorten the scheduling interval.
  • TTI can be shortened from 1 ms to 1 symbol (symbol) to 0.5 ms.
  • the above mentioned symbol may be an Orthogonal Frequency Division Multiplexing in an LTE system. OFDM) symbol.
  • RTT Round-Trip Time
  • the RTT of the data transmission is 8 symbols.
  • HARQ Hybrid Automatic Repeat Request
  • ACK acknowledgement
  • NACK Negative Acknowledgment
  • the user equipment sends the HARQ feedback information.
  • the first type is that the user equipment does not receive the DL grant of the data packet scheduled by the base station in symbol 3, so that the HARQ feedback information is not sent in symbol 7, and the second is that the user equipment is Symbol 3 receives the data packet scheduled by the base station but does not decode correctly, thereby transmitting a NACK at symbol 7; the third is that the user equipment receives the data packet scheduled by the base station at symbol 3 and correctly decodes, thereby transmitting an ACK at symbol 7.
  • the performance indicators of HARQ feedback information are classified into false alarms and false detections.
  • the false alarm means that the user equipment does not send the HARQ feedback information or sends the NACK, but the base station determines that the user equipment sends the ACK by detecting, corresponding to the first and second cases.
  • False detection means that the user equipment sends an ACK, but the base station does not detect an ACK, which corresponds to the third case described above.
  • the performance of false detection is observed under the condition that a certain false alarm indicator is met.
  • the network performance is affected.
  • the short TTI data transmission is more likely to be misdetected by the base station than the normal 1 ms TTI data transmission, thereby having a greater impact on network performance.
  • the impact of the ACK transmission on the 1-symbol TTI on the network performance and the impact on the network performance in the ACK transmission of the 1 ms TTI are analyzed respectively. It is found that the ACK transmission using the 1-symbol TTI is satisfied. Under the condition of false alarm, when the user equipment sends an ACK and the probability that the base station does not detect the ACK is 0.01, the signal-to-noise ratio of the user equipment is about 6.3 dB; and when the ACK transmission is performed with 1 ms TTI, the same false alarm condition is used.
  • the signal to noise ratio of the user equipment is about -7.5 dB.
  • the performance of the ACK when the ACK transmission of the 1-symbol TTI is about 14 dB is lost with respect to the performance of the ACK when the ACK transmission of the 1 ms TTI.
  • the embodiment of the invention provides an information processing method, device and system, which are used to solve the problem that the HARQ feedback information existing in the prior art brings a large loss to the network performance.
  • an information processing method including:
  • the base station determines a feedback mode of the hybrid automatic repeat request HARQ feedback information of the user equipment, where the feedback manner includes: feeding back the HARQ feedback information, or not feeding back the HARQ feedback information;
  • the base station Determining, by the base station, the first signaling according to the feedback manner of the HARQ feedback information, where the first signaling implicitly indicates a feedback manner of the HARQ feedback information;
  • the base station determines a feedback manner of the HARQ feedback information of the user equipment, including:
  • the base station determines that the user equipment does not feed back HARQ feedback information; otherwise, the base station determines that the user equipment feeds back HARQ feedback information. .
  • the determining, by the base station, the SNR value of the user equipment includes:
  • the base station determines an SNR value of the user equipment according to an uplink reference signal sent by the user equipment.
  • the first signaling is radio resource control RRC Signaling or media access controls MAC signaling or physical layer signaling.
  • the first signaling is a modulation and coding scheme MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • Determining, by the base station, the first signaling according to the feedback manner of the HARQ feedback information including:
  • the base station determines the MCS indication information, where the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value;
  • the base station determines MCS indication information, where the MCS index value or the TBS index value indicated by the MCS indication information is greater than the second threshold value.
  • the MCS indicates the transport block size indicated by the information. It is determined according to the target value of the block error rate BLER, and the target value of the BLER is less than 0.1.
  • the first signaling is channel state information CSI configuration information, where the CSI configuration information is channel quality indication CQI table configuration information and/or modulation and coding policy MCS table configuration information;
  • Determining, by the base station, the first signaling according to the feedback manner of the HARQ feedback information including:
  • the base station determines CSI configuration information used to instruct the user equipment to use a CQI table and/or an MCS table that does not include 256QAM;
  • the base station determines CSI configuration information used to instruct the user equipment to use a CQI table and/or an MCS table including 256QAM.
  • the method before the determining, by the base station, the first signaling, according to the feedback manner of the HARQ feedback information, the method further includes:
  • the feedback manner of the HARQ feedback information is not to feed back the HARQ feedback information, configure the CQI table and/or the MCS table that does not include 256QAM for the user equipment;
  • a CQI table and/or an MCS table including 256QAM is configured for the user equipment.
  • the first signaling is a transmission time interval TTI frame structure configuration information
  • Determining, by the base station, the first signaling according to the feedback manner of the HARQ feedback information including:
  • the base station determines a TTI for instructing the user equipment to use the shortest TTI frame structure of at least two different TTI frame structures set in advance for data transmission.
  • Frame structure configuration information
  • the base station determines a TTI frame used to instruct the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission. Structure configuration information.
  • the method before the determining, by the base station, the first signaling, according to the feedback manner of the HARQ feedback information, the method further includes:
  • the feedback manner of the HARQ feedback information is that the HARQ feedback information is not fed back, configure the shortest TTI frame structure in the TTI frame structure of the at least two different lengths for the user equipment;
  • the feedback manner of the HARQ feedback information is the feedback HARQ feedback information
  • the first signaling is repetition number information
  • Determining, by the base station, the first signaling according to the feedback manner of the HARQ feedback information including:
  • the base station determines the repetition number information for indicating that the number of repeated transmissions of the same transmission data block is greater than one;
  • the base station determines the repetition number information for indicating that the number of repeated transmissions of the same transmission data block is not greater than 1.
  • the method before the determining, by the base station, the first signaling, according to the feedback manner of the HARQ feedback information, the method further includes:
  • the base station configures, to the user equipment, a transmission with a repeated transmission number of the same transmission data block greater than 1, the pair of the same transmission data block. Repeated transmission times greater than one transmission time and/or frequency contiguous resources, or time and/or frequency discontinuous resources.
  • the second possible implementation of the first aspect In conjunction with the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, the fourth possible implementation of the first aspect, A fifth possible implementation manner of the first aspect, a sixth possible implementation manner of the first aspect, a seventh possible implementation manner of the first aspect, an eighth possible implementation manner of the first aspect, and a first aspect
  • the ninth possible implementation manner of the first aspect, the tenth possible implementation manner of the first aspect, or the eleventh possible implementation manner of the first aspect :
  • the base station updates the number of retransmissions configured for the user equipment, And performing the downlink transmission on the user equipment by using the updated number of retransmissions; wherein the number of retransmissions after the update is greater than the preset number of retransmissions.
  • an information processing method including:
  • the user equipment receives the first signaling sent by the base station to determine a feedback manner of the hybrid automatic repeat request HARQ feedback information of the user equipment, where the feedback manner includes: feeding back HARQ feedback information, or not feeding back HARQ feedback Information; the first signaling implicitly indicating a feedback manner of the feedback information of the HARQ;
  • the user equipment determines a feedback manner of the HARQ feedback information according to the first signaling.
  • the first signaling is radio resource control RRC signaling or media access control MAC signaling or physical layer signaling.
  • the first signaling is a modulation and coding scheme MCS indication information
  • the MCS indication information indicates an MCS index value.
  • Determining, by the user equipment, the feedback manner of the HARQ feedback information according to the first signaling including:
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the first signaling is channel state information CSI configuration information, where the CSI configuration information is a CQI Form configuration information and/or MCS form configuration information;
  • the user equipment determines, according to the first signaling, a feedback manner of the HARQ feedback information, including:
  • the user equipment determines not to feed back HARQ feedback information
  • the user equipment determines to feed back HARQ feedback information.
  • the first signaling is a transmission time interval TTI frame structure configuration information
  • the user equipment determines, according to the first signaling, a feedback manner of the HARQ feedback information, including:
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the first signaling is a repetition quantity information
  • the user equipment determines, according to the first signaling, a feedback manner of the HARQ feedback information, including:
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • a base station including:
  • a feedback mode determining unit configured to determine a feedback mode of the hybrid automatic repeat request HARQ feedback information of the user equipment, where the feedback manner includes: feeding back HARQ feedback information, or not feeding back HARQ feedback information;
  • a first signaling determining unit configured to determine a first signaling according to a feedback manner of the HARQ feedback information determined by the feedback manner determining unit, where the first signaling implicitly indicates a feedback manner of the HARQ feedback information ;
  • a sending unit configured to send the first signaling that is determined by the first signaling determining unit to the user equipment, where the user equipment determines a feedback manner of the HARQ feedback information according to the first signaling.
  • the feedback mode determining unit is specifically configured to:
  • the SNR value of the user equipment is less than or less than a preset first threshold, determining that the user equipment does not feed back the HARQ feedback information; otherwise, determining that the user equipment feeds back the HARQ feedback information.
  • the feedback mode determining unit determines a signal to noise ratio SNR value of the user equipment, including:
  • the first signaling is radio resource control RRC Signaling or media access controls MAC signaling or physical layer signaling.
  • the first signaling is a modulation and coding scheme MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • the first signaling determining unit is specifically configured to:
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value;
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is greater than the second threshold value.
  • the MCS indicates the transport block size indicated by the information. It is determined according to the target value of the block error rate BLER, and the target value of the BLER is less than 0.1.
  • the first signaling is channel state information CSI configuration information, where the CSI configuration information is channel quality indication CQI table configuration information and/or modulation and coding policy MCS table configuration information;
  • the first signaling determining unit is specifically configured to:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • the base station further includes:
  • a first configuration unit configured to configure a CQI table and/or an MCS table that does not include 256QAM for the user equipment when the feedback manner of the HARQ feedback information determined by the feedback manner determining unit is not to feed back the HARQ feedback information;
  • a CQI table and/or an MCS table including 256QAM is configured for the user equipment.
  • the first signaling is a transmission time interval TTI frame structure configuration information
  • the first signaling determining unit is specifically configured to:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission .
  • the base station further includes:
  • a second configuration unit configured to configure, in the TTI frame structure of the at least two different lengths, the user equipment, when the feedback manner of the HARQ feedback information determined by the feedback manner determining unit is not to feed back the HARQ feedback information
  • the shortest TTI frame structure; when the feedback manner of the HARQ feedback information determined by the feedback mode determining unit is feedback HARQ feedback information, configuring the user equipment The non-shortest TTI frame structure of the at least two different length TTI frame structures.
  • the first signaling is repetition number information
  • the first signaling determining unit is specifically configured to:
  • determining the number of repetition times for indicating that the number of repeated transmissions of the same transmission data block is not greater than 1.
  • the base station further includes:
  • a third configuration unit configured to: when the feedback manner of the HARQ feedback information determined by the feedback manner determining unit is not to feed back the HARQ feedback information, configure the user equipment to repeat the transmission number of the same transport data block to be greater than 1 Transmission, the number of repeated transmissions of the same transmission data block is greater than one, using time and/or frequency contiguous resources, or time and/or frequency discontinuous resources.
  • the base station further includes :
  • a retransmission number updating unit configured to: when the SNR value of the user equipment determined by the feedback manner determining unit is greater than or equal to a preset first threshold value and less than or not greater than a preset third threshold value Updating the number of retransmissions configured for the user equipment, and performing downlink transmission on the user equipment by using the updated number of retransmissions; wherein the updated retransmission times is greater than the The number of retransmissions set in advance.
  • a user equipment including:
  • a first signaling receiving unit configured to receive first signaling that is sent by the base station to determine a feedback manner of the hybrid automatic repeat request HARQ feedback information of the user equipment, where the feedback manner includes: feeding back HARQ feedback information Or, not feeding back the HARQ feedback information; the first signaling implicitly indicating a feedback manner of the feedback information of the HARQ;
  • the feedback mode determining unit is configured to determine a feedback manner of the HARQ feedback information according to the first signaling received by the first signaling receiving unit.
  • the first signaling is radio resource control RRC signaling or media access control MAC signaling or physical layer signaling.
  • the first signaling is a modulation and coding scheme MCS indication information
  • the MCS indication information indicates an MCS index value.
  • the feedback mode determining unit is specifically configured to:
  • the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • the first signaling is channel state information CSI configuration information, where the CSI configuration information is CQI Form configuration information and/or MCS form configuration information;
  • the feedback mode determining unit is specifically configured to:
  • the feedback HARQ feedback information is determined when the CSI configuration information indicates that the user equipment uses a CQI table and/or an MCS table containing 256QAM.
  • the first signaling is a transmission time interval TTI frame structure configuration information
  • the feedback mode determining unit is specifically configured to:
  • the TTI frame structure configuration information indicates the shortest TTI frame structure among the at least two different length TTI frame structures set in advance, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • the first signaling is a repetition quantity information
  • the feedback mode determining unit is specifically configured to:
  • the repetition number information indicates that the number of repeated transmissions of the same transmission data block is greater than 1, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • a base station including:
  • a processor configured to determine a feedback mode of the hybrid automatic repeat request (HARQ) feedback information of the user equipment, and determine the first signaling according to the feedback manner of the HARQ feedback information, where the feedback manner includes: feedback HARQ feedback information, Or not feeding back the HARQ feedback information; the first signaling implicitly indicating a feedback manner of the HARQ feedback information;
  • HARQ hybrid automatic repeat request
  • a transmitter configured to send the first signaling to the user equipment, where the user equipment determines a feedback manner of the HARQ feedback information according to the first signaling.
  • the processor determines a feedback manner of the HARQ feedback information of the user equipment, including:
  • the SNR value of the user equipment is less than or less than a preset first threshold, determining that the user equipment does not feed back the HARQ feedback information; otherwise, determining that the user equipment feeds back the HARQ feedback information.
  • the determining, by the processor, a signal to noise ratio SNR value of the user equipment including:
  • the first signaling is radio resource control RRC signaling or media access control MAC signaling or physical layer signaling.
  • the first signaling is a modulation and coding scheme MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • Determining, by the processor, the first signaling according to the feedback manner of the HARQ feedback information including:
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value;
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is greater than the second threshold value.
  • the MCS indicates the transport block size indicated by the information. It is determined according to the target value of the block error rate BLER, and the target value of the BLER is less than 0.1.
  • the first signaling is channel state information CSI configuration information, where the CSI configuration information is channel quality indication CQI table configuration information and/or modulation and coding policy MCS table configuration information;
  • Determining, by the processor, the first signaling according to the feedback manner of the HARQ feedback information including:
  • determining is used to refer to
  • the user equipment is shown to use CSI configuration information including a CQI table of 256QAM and/or an MCS table.
  • the processor before determining the first signaling according to the feedback manner of the HARQ feedback information, is further configured to:
  • the feedback manner of the HARQ feedback information is not to feed back the HARQ feedback information, configure the CQI table and/or the MCS table that does not include 256QAM for the user equipment;
  • a CQI table and/or an MCS table including 256QAM is configured for the user equipment.
  • the first signaling is a transmission time interval TTI frame structure configuration information
  • Determining, by the processor, the first signaling according to the feedback manner of the HARQ feedback information including:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission .
  • the processor before determining the first signaling according to the feedback manner of the HARQ feedback information, is further configured to:
  • the feedback manner of the HARQ feedback information is that the HARQ feedback information is not fed back, configure the shortest TTI frame structure in the TTI frame structure of the at least two different lengths for the user equipment;
  • the feedback manner of the HARQ feedback information is the feedback HARQ feedback information
  • the first signaling is repetition number information
  • Determining, by the processor, the first signaling according to the feedback manner of the HARQ feedback information including:
  • determining the number of repetition times for indicating that the number of repeated transmissions of the same transmission data block is not greater than 1.
  • the processor before determining the first signaling according to the feedback manner of the HARQ feedback information, is further configured to:
  • the user equipment When the feedback manner of the HARQ feedback information is that the HARQ feedback information is not fed back, the user equipment is configured to perform a transmission with a repeated transmission number of the same transmission data block greater than 1, and the number of repeated transmissions of the same transmission data block Transmissions greater than 1 use resources that are continuous in time and/or frequency, or resources that are not continuous in time and/or frequency.
  • the processor is further Used for:
  • the number of retransmissions is downlinked to the user equipment; wherein the number of retransmissions after the update is greater than the preset number of retransmissions.
  • a user equipment including:
  • a receiver configured to receive, by the base station, a first signaling that is used to determine a feedback manner of the hybrid automatic repeat request (HARQ) information of the user equipment, where the feedback manner includes: feeding back HARQ feedback information, or And feeding back the HARQ feedback information; the first signaling implicitly indicating a feedback manner of the feedback information of the HARQ;
  • HARQ hybrid automatic repeat request
  • a processor configured to determine, according to the first signaling, a feedback manner of the HARQ feedback information.
  • the first signaling is radio resource control RRC signaling or media access control MAC signaling or physical layer signaling.
  • the first signaling is a modulation and coding scheme MCS indication information
  • the MCS indication information indicates an MCS index value.
  • Determining, by the processor, the feedback manner of the HARQ feedback information according to the first signaling including:
  • the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value, it is determined that the HARQ feedback information is not fed back; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the first signaling is channel state information CSI configuration information, where the CSI configuration information is a CQI Form configuration information and/or MCS form configuration information;
  • Determining, by the processor, the feedback manner of the HARQ feedback information according to the first signaling including:
  • the feedback HARQ feedback information is determined when the CSI configuration information indicates that the user equipment uses a CQI table and/or an MCS table containing 256QAM.
  • the first signaling is a transmission time interval TTI frame structure configuration information
  • Determining, by the processor, the feedback manner of the HARQ feedback information according to the first signaling including:
  • the TTI frame structure configuration information indicates the shortest TTI frame structure among the at least two different length TTI frame structures set in advance, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • the first signaling is a repetition quantity information
  • Determining, by the processor, the feedback manner of the HARQ feedback information according to the first signaling including:
  • the repetition number information indicates that the number of repeated transmissions of the same transmission data block is greater than 1, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • an information processing system including a base station and a user equipment, where:
  • the base station is configured to determine a feedback manner of the hybrid automatic repeat request (HARQ) feedback information of the user equipment, determine a first signaling according to the feedback manner of the HARQ feedback information, and send the first signaling to the user equipment.
  • Signaling wherein the first signaling implicitly indicates a feedback manner of the HARQ feedback information; the feedback manner includes: feeding back HARQ feedback information, or not feeding back HARQ feedback information;
  • the user equipment is configured to receive the first signaling sent by the base station, and determine a feedback manner of the HARQ feedback information according to the first signaling.
  • the base station determines the feedback mode of the HARQ feedback information of the user equipment, and sends the first signaling to the user equipment, so that the user equipment determines the feedback manner of the HARQ feedback information according to the first signaling, where the feedback manner includes : Feedback of HARQ feedback information, or not feedback of HARQ feedback information.
  • the feedback manner includes : Feedback of HARQ feedback information, or not feedback of HARQ feedback information.
  • FIG. 2 is a link simulation result diagram of an impact of uplink ACK feedback of a 1-symbol TTI on downlink PDSCH transmission performance of a 1-bit TTI;
  • FIG. 4 is a flowchart of implementing an information processing method implemented by a base station according to an embodiment of the present invention
  • FIG. 5 is a flowchart of implementing an information processing method implemented by a user equipment side according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a hardware structure of a base station according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of hardware of a user equipment according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an information processing system according to an embodiment of the present invention.
  • the embodiment of the present invention provides an information processing solution for the problem that the HARQ feedback information existing in the prior art brings a large loss to the network performance.
  • the core idea is to determine the feedback mode of the HARQ feedback information of the user equipment by using the base station. And sending the first signaling to the user equipment, so that the user equipment determines the feedback manner of the HARQ feedback information according to the first signaling, where the feedback manner includes: feeding back the HARQ feedback information, or not feeding back the HARQ feedback information.
  • the user equipment determines that the HARQ feedback information is not fed back, when the user equipment and the base station perform data transmission, the user equipment does not send an ACK/NACK to the base station, so that the base station avoids false detection, thereby reducing HARQ in the uplink.
  • the feedback information gives the network performance a loss.
  • a user equipment may be referred to as a terminal, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), etc.
  • the user equipment It can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or called a "bee” A "phone", a computer with a mobile terminal, etc.
  • the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • the base station may be an evolved base station (Evolved Node B, eNB or e-NodeB), a macro base station, a micro base station (also referred to as a "small base station"), a pico base station, and an access station in the LTE system. (Access Point, AP) or Transmission Point (TP), etc., which is not limited by the present invention.
  • Evolved Node B evolved Node B
  • eNB evolved Node B
  • e-NodeB evolved Node B
  • macro base station also referred to as a "small base station”
  • a pico base station also referred to as a "small base station”
  • an access station in the LTE system LTE system.
  • AP Access Point
  • TP Transmission Point
  • FIG. 2 a link simulation result diagram of the impact of the uplink ACK feedback of the 1-symbol TTI on the downlink physical downlink shared channel (PDSCH) transmission performance of the 1-symbol TTI, where the horizontal axis coordinate is the UE The Signal Noise Ratio (SNR) and the vertical axis coordinate are the throughput of the UE.
  • the simulation of the downlink data in three different scenarios is given in FIG. 2, that is, the eNB transmits downlink data to the UE.
  • the curve Normal is a statistical curve of UE throughput under the first assumption.
  • the first assumption is:
  • AMC Normal Adaptive Modulation and Coding
  • BLER target block error rate
  • MCS Modulation and Coding
  • the base station can perform retransmission, and the same data packet allows a maximum of 4 transmissions; ideal ACK feedback (ie, the UE receives the downlink data sent by the eNB) The ACK/NACK fed back to the eNB after demodulation decoding does not exist in the case of being misdetected by the base station).
  • the curve Method 1 is a statistical curve of UE throughput under the second assumption.
  • the second assumption is:
  • a normal AMC the same data packet allows a maximum of 20 transmissions, non-ideal ACK feedback (that is, the UE receives the downlink data sent by the eNB, and the ACK/NACK that is fed back to the eNB after demodulation and decoding has a base station misdetection, such as a part of the UE.
  • the feedback ACK is falsely detected by the base station as NACK.
  • the modeling of the ACK feedback is related to the ACK transmission performance curve of the 1-symbol TTI, as shown in FIG. 3, which is the ACK transmission performance curve for the 1-symbol TTI, where the horizontal axis coordinate is the SNR of the UE and the vertical axis coordinate is the ACK.
  • the curve corresponding to " ⁇ " is the probability curve that the user equipment sends an ACK and the base station does not detect the ACK
  • the curve corresponding to "O" is sent by the user equipment.
  • the curve corresponding to "x" is a probability curve that the user equipment transmits a NACK and the base station detects the ACK.
  • the ACK error probability of the ACK of the 1-symbol TTI at 0 dB is 0.15
  • the probability of false detection of the ACK is 0.065 at 2 dB
  • the ACK of the ACK is 4 dB when the false alarm is satisfied.
  • the probability of false detection is 0.03, and the probability of false detection of ACK at 6 dB is 0.013.
  • the probability that the ACK of the UE received the feedback ACK of 0.065 at 2 dB is not correctly detected by the base station.
  • the base station will retransmit the data packet).
  • Curve Method 2 is a statistical plot of UE throughput under the third assumption.
  • the third assumption is:
  • the conservative AMC that is, the target block rate of the first transmission is less than 0.1, and the MCS is selected for the downlink data transmission of the UE.
  • the specific implementation method may be to increase the threshold of the MCS selection by 2 dB, or to reduce the selected MCS. Data scheduling), no retransmission (because the initial BLER is very low, the base station can assume that the UE can correctly decode in one transmission), ideal ACK feedback.
  • the user equipment may not feed back the HARQ feedback information, thereby reducing the loss caused by the false detection of the HARQ feedback information in the uplink to the network performance;
  • medium SNR for example, 2dB-8dB
  • more retransmission times can be configured, and HARQ gain can be used to reduce the loss of network performance caused by false detection of HARQ feedback information in the uplink
  • high SNR For example, when it is greater than 8 dB), since the performance of the HARQ feedback information in the uplink can be guaranteed at this time, no additional processing can be performed.
  • an embodiment of the present invention provides an information processing method implemented by a base station side, as shown in FIG. 4, which is a flowchart of implementing the method.
  • the method includes the following steps:
  • Step 41 The base station determines a feedback manner of the HARQ feedback information of the user equipment, where the feedback manner includes: feeding back the HARQ feedback information, or not feeding back the HARQ feedback information.
  • step 41 can be implemented as follows:
  • the base station determines an SNR value of the user equipment
  • the SNR value is an SNR value of a channel on which the user equipment receives downlink data
  • the base station may determine an SNR value of the user equipment according to a Channel Quality Indicator (CQI) reported by the user equipment.
  • CQI Channel Quality Indicator
  • the SNR value is an SNR value of a channel for sending, by the user equipment, the uplink reference signal (such as a Sounding Reference Signal (SRS) and/or a demodulation reference signal). Demodulation Reference Signal (DMRS), etc.) to determine the SNR value of the user equipment.
  • the uplink reference signal such as a Sounding Reference Signal (SRS) and/or a demodulation reference signal.
  • DMRS Demodulation Reference Signal
  • the base station determines that the user equipment does not feed back the HARQ feedback information; otherwise, the base station determines that the user equipment feeds back the HARQ feedback information.
  • the base station determines that the user equipment does not feed back the HARQ feedback information; when the SNR value of the user equipment is not less than the first threshold, the base station determines the user equipment feedback. HARQ feedback information.
  • the base station determines that the user equipment does not feed back the HARQ feedback information; when the SNR value of the user equipment is greater than the first threshold, the base station determines that the user equipment feeds back the HARQ feedback information. .
  • the base station may update the number of retransmissions configured for the user equipment, and The downlink PDSCH transmission is performed on the user equipment by using the updated number of retransmissions.
  • the number of retransmissions after the update is greater than the preset number of retransmissions.
  • the first threshold value in the embodiment of the present invention may be 2 dB
  • the third threshold value may be 8 dB.
  • Step 42 The base station determines the first signaling according to the feedback manner of the HARQ feedback information, where the first signaling implicitly indicates the feedback manner of the HARQ feedback information.
  • the first signaling in the embodiment of the present invention is a feedback manner that does not directly indicate the HARQ feedback information.
  • the first signaling may be Radio Resource Control (RRC) signaling or Media Access Control (MAC) signaling or physical layer signaling.
  • RRC Radio Resource Control
  • MAC Media Access Control
  • the first signaling may be MCS indication information, where the MCS indication information may indicate a Transport Block Size (TBS) index value corresponding to the MCS index value or the MCS index value.
  • TBS Transport Block Size
  • Step 42 may specifically include:
  • the base station determines the MCS indication information, where the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value.
  • the TBS index value indicated by the MCS indication information determined by the base station is determined according to a target value of a Block Error Rate (BLER), and the target value of the BLER is less than 0.1.
  • BLER Block Error Rate
  • the reason why the target value of the BLER is modified to be less than 0.1 is to prevent the UE from feeding back the HARQ feedback information by increasing the initial transmission success rate.
  • the base station determines the MCS indication information, where the MCS index value or the TBS index value indicated by the MCS indication information is greater than the second threshold value.
  • step 42 can also be implemented as follows:
  • the base station determines the MCS indication information, where the MCS index value or the TBS index value indicated by the MCS indication information is smaller than a preset second threshold value;
  • the base station determines the MCS indication information, and the MCS index value or the TBS index value indicated by the MCS indication information is not less than the second threshold value.
  • the first signaling may also be Channel State Information (CSI) configuration information; where the CSI configuration information is CQI table configuration information and/or modulation and coding policy MCS table configuration information;
  • CSI Channel State Information
  • Step 42 may specifically include:
  • the base station determines CSI configuration information for instructing the user equipment to use the CQI table and/or the MCS table that does not include 256QAM;
  • the base station determines CSI configuration information used to instruct the user equipment to use a CQI table and/or an MCS table including 256QAM.
  • the base station may further include:
  • the CQI table and/or the MCS table that does not include the 256QAM is configured for the user equipment;
  • a CQI table and/or an MCS table including 256QAM is configured for the user equipment.
  • the first signaling may further configure information for the TTI frame structure
  • the TTI frame structure configuration information may be frame structure configuration information that the user equipment performs downlink data reception and/or frame structure configuration information that the user equipment performs uplink data transmission.
  • Step 42 may specifically include:
  • the base station determines TTI frame structure configuration information for instructing the user equipment to perform data transmission using the shortest TTI frame structure of at least two different TTI frame structures set in advance;
  • the base station determines TTI frame structure configuration information used to indicate that the user equipment uses the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission.
  • the base station determines the first manner according to the feedback manner of the HARQ feedback information. Before a signaling, it may also include:
  • the feedback mode of the HARQ feedback information is not to feed back the HARQ feedback information, configure the shortest TTI frame structure in the TTI frame structure of the at least two different lengths for the user equipment;
  • the user equipment is configured with a non-shortest TTI frame structure of at least two TTI frame structures of different lengths.
  • the first signaling may also be the repetition number information
  • Step 42 may specifically include:
  • the base station determines the repetition number information for indicating that the number of repeated transmissions of the same transmission data block is greater than one;
  • the base station determines the repetition number information for indicating that the number of repeated transmissions of the same transmission data block is not greater than 1.
  • the method before the first signaling is determined by the base station according to the feedback manner of the HARQ feedback information, the method further includes:
  • the base station configures, for the user equipment, the transmission with the repeated transmission times of the same transmission data block to be greater than 1, and the transmission of the same transmission data block with the repeated transmission times greater than 1.
  • consecutive resources in the time and/or frequency, or resources that are discontinuous in time and/or frequency are predefined by the base station.
  • step 42 optionally, the first signaling is determined according to each user equipment.
  • the first signaling is determined according to each resource group.
  • the resource group may be a subframe, a subframe set, a carrier, a carrier set, a resource block (RB), a resource block set, a CSI process or a CSI process set, and a channel state information-reference signal (Channel State) Information Reference Resource, CSI-RS) or CSI-RS set, access point or set of access points.
  • the carrier may be a component carrier (CC); the access point may refer to a base station corresponding to the cell, a remote radio unit (RRU), a radio remote head (RRH), Macro cell, small cell, micro cell, home base station, and the like.
  • Step 43 The base station sends the first signaling to the user equipment, where the user equipment determines according to the first signaling.
  • the feedback method of the HARQ feedback information The feedback method of the HARQ feedback information.
  • the first signaling may be separately sent to each user equipment; if the first signaling is If the first signaling is sent to the user equipment, the base station may separately send the determined first signaling to each user equipment, or may send the determined determination to all user equipments by using the common channel. The first signaling.
  • the base station determines the feedback mode of the HARQ feedback information of the user equipment, and sends the first signaling to the user equipment, so that the user equipment determines the feedback manner of the HARQ feedback information according to the first signaling, where the feedback manner is Including: feeding back HARQ feedback information, or not feeding back HARQ feedback information.
  • the feedback manner is Including: feeding back HARQ feedback information, or not feeding back HARQ feedback information.
  • the embodiment of the present invention further provides an information processing method implemented by the user equipment side, as shown in FIG. 5, which is an implementation flowchart of the method.
  • the method includes the following steps:
  • Step 51 The user equipment receives the first signaling sent by the base station to determine a feedback manner of the HARQ feedback information of the user equipment, where the feedback manner includes: feeding back the HARQ feedback information, or not feeding back the HARQ feedback information; Implicitly indicating the feedback method of HARQ feedback information.
  • the first signaling may be RRC signaling or MAC signaling or physical layer signaling.
  • Step 52 The user equipment determines a feedback manner of the HARQ feedback information according to the first signaling.
  • the first signaling may be MCS indication information
  • Step 52 may specifically include:
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines the feedback.
  • HARQ feedback information when the MCS index value or the TBS index value indicated by the MCS indication information is less than the second threshold, the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines the feedback.
  • the first signaling may also be CSI configuration information, where the CSI configuration information is CQI table configuration information and/or MCS table configuration information;
  • Step 52 may specifically include:
  • the user equipment determines not to feed back the HARQ feedback information
  • the user equipment determines to feed back the HARQ feedback information.
  • the first signaling may further configure information for the TTI frame structure
  • the TTI frame structure configuration information may be frame structure configuration information that the user equipment performs downlink data reception and/or frame structure configuration information that the user equipment performs uplink data transmission.
  • Step 52 may specifically include:
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines the feedback HARQ feedback. information.
  • the first signaling may also be the repetition number information
  • Step 52 may specifically include:
  • the user equipment determines not to feed back the HARQ feedback information; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the user equipment receives the first signaling that is sent by the base station to determine the feedback manner of the HARQ feedback information of the user equipment, and determines the feedback manner of the HARQ feedback information according to the first signaling, where the feedback manner is Including: feeding back HARQ feedback information, or not feeding back HARQ feedback information.
  • the feedback manner is Including: feeding back HARQ feedback information, or not feeding back HARQ feedback information.
  • the first signaling is the MCS indication information
  • the following two cases may be specifically:
  • the first case is a first case:
  • the base station presets a second threshold value, and when the MCS index value or the TBS index value indicated by the MCS indication information sent by the base station to the user equipment is not greater than the second threshold, the MCS indication information implicitly indicates that the user equipment does not The data packet corresponding to the MCS index value or the TBS index value is subjected to HARQ feedback; otherwise, the MCS indication information implicitly indicates that the user equipment performs HARQ feedback on the data packet corresponding to the MCS index value or the TBS index value.
  • the base station determines the uplink SNR value of the user equipment according to the uplink reference signal, such as the SRS and/or the DMRS, sent by the user equipment.
  • the uplink SNR value of the user equipment is less than or less than the first threshold
  • the base station The downlink data transmission of the user equipment is conservatively scheduled. For example, if the base station determines that the MCS index value to be used for downlink data transmission of the user equipment is j according to the CQI reported by the user equipment, the base station reduces the MCS index value to obtain an MCS index value (jk), where k is equal to 1 or 2.
  • the base station schedules downlink data transmission to the user equipment by using a maximum MCS index value that implicitly indicates that the user equipment does not perform HARQ feedback; otherwise, The base station schedules downlink data transmission to the user equipment using the MCS index value (jk).
  • the base station abandons the retransmission of the downlink data transmission of the user equipment, and the base station can assume that the user equipment correctly receives the downlink data without increasing the HARQ feedback in the uplink by increasing the initial transmission success rate, thereby reducing
  • the HARQ feedback information in the uplink causes a loss in network performance.
  • the second case is a first case
  • the CQI table in the existing LTE system is based on the target BLER of 0.1.
  • the MCS indication information sent by the base station to the user equipment is determined according to a preset CQI table and/or MCS table.
  • a lower target BLER such as 0.01
  • the MCS indication information sent by the base station to the user equipment or the target BLER corresponding to the MCS level indicated by the MCS indication information is low, the MCS indication information is implicitly indicated.
  • the user equipment does not perform HARQ feedback on the data packet corresponding to the MCS; otherwise, the MCS indication information implicitly indicates that the user equipment performs HARQ feedback on the data packet corresponding to the MCS.
  • a CQI table is given in Table 1 below. It should be noted that the SNR value corresponding to the switching point of different target BLER (Target BLER) in the following CQI table may be determined according to the simulation result. In the embodiment of the present invention, according to the simulation result in FIG. 2, the switching point is 1-3 dB.
  • the MCS table can be determined according to the CQI table, and Table 2 gives the table according to Table 1.
  • the MCS form determined by the CQI form.
  • the target BLER value corresponding to the MCS index used by the base station implicitly indicates whether the user equipment needs to perform feedback of the HARQ feedback information. Taking Table 2 as an example, when the MCS index is not greater than 8, no feedback of the HARQ feedback information is performed.
  • the base station determines the downlink SNR value of the user equipment according to the CQI reported by the user equipment, and/or determines the uplink SNR value of the user equipment according to the uplink reference signal, such as the SRS and/or the DMRS sent by the user equipment, when the user equipment
  • the base station performs conservative scheduling on the downlink data transmission of the user equipment.
  • the base station uses an MCS index value or a TBS index value that is not greater than 8. The downlink data transmission is scheduled for the user equipment.
  • the base station abandons the retransmission of the downlink data transmission of the user equipment, and the base station can assume that the user equipment correctly receives the downlink data without increasing the HARQ feedback in the uplink by increasing the initial transmission success rate, thereby reducing The HARQ feedback information in the uplink causes a loss in network performance.
  • the CSI configuration information may be CQI table configuration information, or may be MCS table configuration information, and may also be CQI table configuration information and MCS table configuration information. Specifically, it can be divided into the following two cases:
  • the first case is a first case:
  • the base station determines the downlink SNR value of the user equipment according to the CQI reported by the user equipment, and/or determines an uplink SNR value of the user equipment according to an uplink reference signal, such as an SRS and/or a DMRS sent by the user equipment, when the base station determines the When the at least one SNR value of the user equipment is less than or less than the first threshold, determining that the user equipment does not feed back the HARQ feedback information, and configuring the CQI table and/or the MCS table that does not include the 256QAM for the user equipment; otherwise, the base station determines the user.
  • an uplink reference signal such as an SRS and/or a DMRS sent by the user equipment
  • the device feeds back the HARQ feedback information and configures the CQI table and/or MCS table containing the 256QAM for the user equipment. Then, the base station sends the CSI configuration information to the user equipment, so that the user equipment determines the feedback manner of the HARQ feedback information according to the CSI configuration information; when the CSI configuration information indicates that the user equipment uses the CQI table and/or the MCS table that does not include 256QAM, the user equipment determines The HARQ feedback information is not fed back; when the CSI configuration information indicates that the user equipment uses the CQI table and/or the MCS table including 256QAM, the user equipment determines to feed back the HARQ feedback information.
  • the base station relinquishes the downlink data transmission of the low SNR user equipment.
  • the base station can assume that the user equipment correctly receives the downlink data without performing HARQ feedback in the uplink, thereby reducing the loss of the HARQ feedback information in the uplink to the network performance.
  • Table 3 is an existing CQI table that does not include 256QAM
  • Table 4 is an existing CQI table containing 256QAM
  • Table 5 is an existing MCS table not including 256QAM
  • Table 6 is Some include MCS tables for 256QAM.
  • the second case is a first case
  • At least two sets of CQI tables and/or MCS tables may be designed for different target BLERs, for example, a target BLER value of 0.1 according to the existing LTE system and a BLER value smaller than the existing target BLER. , such as 0.01, design CQI and / or MCS tables respectively.
  • the base station determines the downlink SNR value of the user equipment according to the CQI reported by the user equipment, and/or determines an uplink SNR value of the user equipment according to an uplink reference signal, such as an SRS and/or a DMRS sent by the user equipment, when the base station determines the When the at least one SNR value of the user equipment is less than or not greater than the first threshold, determining that the user equipment does not feed back the HARQ feedback information, and configuring the user equipment
  • the target BLER has a lower CQI table and/or MCS table; otherwise, the base station determines that the user terminal feeds back the HARQ feedback information and configures the user equipment with a higher CQI table and/or MCS table with a higher target BLER.
  • the base station sends the CSI configuration information to the user equipment, so that the user equipment determines the feedback manner of the HARQ feedback information according to the CSI configuration information; when the CSI configuration information indicates that the user equipment uses the CQI table and/or the MCS table with a lower target BLER, the user equipment Determining no feedback of HARQ feedback information; when the CSI configuration information indicates that the user equipment uses a CQI table and/or an MCS table with a higher target BLER, the user equipment determines to feed back the HARQ feedback information.
  • the base station relinquishes the downlink data transmission of the low SNR user equipment.
  • the base station can assume that the user equipment correctly receives the downlink data without performing HARQ feedback in the uplink, thereby reducing the loss of the HARQ feedback information in the uplink to the network performance.
  • the first signaling is TTI frame structure configuration information
  • the following two cases may be specifically:
  • the first case is a first case:
  • the TTI frame structure configuration information is information configured for each user equipment.
  • the base station may perform at least two TTI frame structures of different lengths for the user equipment to perform downlink data transmission. Specifically, the base station notifies the user equipment of at least two resource groups, and the base station notifies the user equipment of the TTI frame structure corresponding to the at least two resource groups respectively.
  • the resource group may be a subframe, a subframe set, a carrier, a carrier set, a resource block, a resource block set, a CSI process or a CSI process set, a CSI-RS or a CSI-RS set, an access point, or an access. Point collection.
  • the carrier may refer to a component carrier; the access point may refer to a base station, an RRU, an RRH, a macro cell, a small cell, a micro cell, a home base station, and the like corresponding to the cell.
  • the base station configures the user equipment with at least two TTI frame structures of different lengths
  • the user equipment needs to feed back the downlink data that is received according to the TTI frame structure of the at least two different lengths.
  • the base station may pre-define that the user equipment does not feedback the first TTI frame structure in the at least two different lengths of TTI frame structures or does not Give feedback.
  • the first frame structure may be at least one TTI of the at least two different length TTI frame structures except the longest TTI frame structure.
  • the first frame structure may also be at least one TTI frame structure except the shortest TTI frame structure in the at least two different length TTI frame structures; the first frame structure may also be the at least two The shortest or longest TTI frame structure among TTI frame structures of different lengths.
  • the base station may also determine an SNR value in a different TTI frame structure according to the CQI reported by the user equipment in different TTI frame structures, and select an SNR value or a minimum SNR value that is less than or not greater than the first threshold value, and the SNR is obtained.
  • the TTI frame structure corresponding to the value is the first frame structure.
  • the base station notifies the user equipment of two resource groups, and the base station notifies the user equipment of the TTI frame structure configuration information corresponding to the two resource groups, and the resource group is a carrier:
  • the base station configures two carriers for the UE, which are carrier A and carrier B respectively.
  • the base station notifies the TTI frame structure configuration information corresponding to the carrier A and the TTI frame structure configuration information corresponding to the carrier B, and assumes that the carrier A corresponds to a frame structure with a TTI length of 1 ms.
  • Carrier B corresponds to a frame structure having a TTI length of 1 OFDM symbol.
  • the base station does not perform HARQ feedback on the longest TTI frame structure, and then the UE does not perform HARQ feedback on the downlink data transmitted on the carrier A.
  • the base station determines the SNR value of the different TTI frame structure according to the CQI of the different TTI frame structure reported by the user equipment, and selects the minimum SNR value, and the TTI frame structure corresponding to the SNR value does not perform HARQ feedback.
  • carrier A is a carrier that is less interfered, for example, a carrier of a neighboring cell is a new type of carrier (a new type of carrier has a cell specific reference signal (CRS) or no CRS, thus generating The interference is relatively small.
  • CRS cell specific reference signal
  • the carrier B is a carrier with a large interference. Therefore, the SINR of the signal transmitted on the carrier A is high, and the SINR of the signal transmitted on the carrier B is low. In this case, the base station is different according to the report reported by the UE.
  • the CQI on the TTI frame structure determines that the UE does not perform HARQ feedback on the TTI frame structure on the carrier B.
  • the UE can also determine the length of one OFDM symbol on the carrier B because the CQI reported on the carrier B is lower than that on the carrier A.
  • the downlink data transmitted does not perform HARQ feedback.
  • the UE When the UE is scheduled to transmit downlink data of at least two TTIs of different lengths, the UE pairs different lengths
  • the downlink data of the TTI is fed back to the uplink HARQ information, and multiple uplink HARQ information collisions may occur. In this way, the conflict of multiple uplink HARQ feedbacks may be eliminated or mitigated.
  • the second case is a first case
  • the TTI frame structure configuration information is information configured for each resource group.
  • the base station can separately configure the TTI frame structure for different resource groups, and the user equipments of the same resource group have the same TTI frame structure.
  • the resource group may be a subframe, a subframe set, a carrier, a carrier set, a resource block, a resource block set, a CSI process or a CSI process set, a CSI-RS or a CSI-RS set, an access point, or an access. Point collection.
  • the carrier may refer to a component carrier;
  • the access point may refer to a base station, an RRU, an RRH, a macro cell, a small cell, a micro cell, a home base station, and the like corresponding to the cell.
  • the base station configures the TTI frame structure for the resource group
  • the user equipment may be configured to perform feedback or no feedback on the TTI frame structure corresponding to the resource group.
  • a possible implementation manner is that the UE determines, by using the configured TTI frame structure configuration information of the at least two resource groups, whether the uplink HARQ information needs to be fed back to the downlink data transmission of the resource group. In this case, the UE needs to support at least two. Downstream reception of resource groups.
  • the base station pre-defines the uplink non-feedback HARQ feedback information corresponding to the short-length TTI frame structure on the two carriers, and the uplink feedback HARQ feedback information corresponding to the longer-length TTI frame structure.
  • the carrier A is configured as a short TTI frame structure
  • the carrier B is configured as a 1 ms TTI frame structure.
  • the UE does not feed back HARQ feedback information on the downlink data received on the carrier A, and feeds back HARQ feedback information on the downlink data received on the carrier B.
  • the TTI frame structure configured by the carrier A and the carrier B is a short TTI frame structure, where the carrier A is configured as a 0.5 ms TTI frame structure, and the carrier B is configured as a TTI frame structure of 1 OFDM symbol.
  • the UE feeds back the HARQ feedback information on the downlink data received on the carrier A, and does not feed back the HARQ feedback information on the downlink data received on the carrier B.
  • the base station presets at least two TTI frame structures of different lengths for the user equipment, only different HARQs corresponding to the TTI frame structures of different lengths are set.
  • the feed mode may be used.
  • the HARQ feedback mode corresponding to the TTI frame structure of different lengths may not be limited.
  • the base station can assume that it always performs HARQ feedback or does not perform HARQ feedback or the base station uses display signaling to notify the UE whether to perform HARQ feedback.
  • the UE may report multiple uplink HARQ information collisions by feeding back uplink HARQ information to downlink data of different lengths of TTIs. In this manner, multiple uplink HARQ information conflicts may be eliminated or mitigated. The conflict of uplink HARQ feedback.
  • the base station separately configures a TTI frame structure for different resource groups, and pre-defines different HARQ feedback modes corresponding to TTI frame structures of different lengths.
  • the resource group is a carrier, and there are two resource groups as an example. It is assumed that there are two carriers in the system, namely carrier A and carrier B. Carrier A is configured as a short TTI frame structure, and carrier B is configured as a 1 ms TTI frame structure.
  • carrier A is configured as a short TTI frame structure
  • carrier B is configured as a 1 ms TTI frame structure.
  • the corresponding uplink does not feed back the HARQ feedback information; when the UE is configured to transmit the data of the carrier B, the corresponding uplink feedback HARQ feedback information.
  • This method is also applicable to UEs that support only one resource group.
  • the specific process is as follows:
  • the base station determines the uplink SNR value of the user equipment according to the uplink reference signal, such as the SRS and/or the DMRS sent by the user equipment.
  • the base station downlinks to the user equipment.
  • the transmission uses multiple blind retransmissions, that is, when the base station determines that the user equipment does not feed back the HARQ feedback information, the base station configures the user equipment to transmit the same transmission data block with the number of repeated transmissions greater than 1, wherein the same transmission data The number of repeated transmissions of the block is greater than 1 for the transmission time and/or frequency of consecutive resources, or resources that are discontinuous in time and/or frequency.
  • the user equipment determines that the repetition quantity information indicates that the number of repeated transmissions of the same transmission data block is greater than 1, it determines that the HARQ feedback information is not fed back; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the UE can combine the same data packet to improve the demodulation SNR of the data packet, thereby improving the transmission success rate of the data packet.
  • the base station assumes that the UE can correctly receive the data packet without performing HARQ feedback in the uplink, thereby reducing the loss of network performance caused by the HARQ feedback information in the uplink.
  • the embodiment of the present invention further provides a base station and user equipment for implementing the foregoing information processing method, and an information processing system, which is based on the principle of the base station, the user equipment, and the system to solve the problem, and the base station side.
  • the implementation of the information processing method is similar to the information processing method implemented on the user equipment side. Therefore, the implementation of the foregoing base station, user equipment, and system may refer to the implementation of the method, and the repeated description is not repeated.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention, including:
  • the feedback mode determining unit 61 is configured to determine a feedback mode of the HARQ feedback information of the user equipment, where the feedback manner includes: feeding back the HARQ feedback information, or not feeding back the HARQ feedback information;
  • the first signaling determining unit 62 is configured to determine, according to the feedback manner of the HARQ feedback information determined by the feedback manner determining unit 61, the first signaling, where the first signaling implicitly indicates the HARQ feedback information. Feedback method
  • the sending unit 63 is configured to send the first signaling that is determined by the first signaling determining unit 62 to the user equipment, where the user equipment determines, according to the first signaling, a feedback manner of the HARQ feedback information. .
  • the feedback manner determining unit 61 may be specifically configured to:
  • the SNR value of the user equipment is less than or less than a preset first threshold, determining that the user equipment does not feed back the HARQ feedback information; otherwise, determining that the user equipment feeds back the HARQ feedback information.
  • the base station determines that the user equipment does not feed back the HARQ feedback information; when the SNR value of the user equipment is not less than the first threshold, the base station determines the user equipment feedback. HARQ feedback information.
  • the base station determines that the user equipment does not feed back the HARQ feedback information; when the SNR value of the user equipment is greater than the first threshold, the base station determines that the user equipment feeds back the HARQ feedback information. .
  • the feedback mode determining unit 61 determines a signal to noise ratio SNR value of the user equipment, and may include:
  • the first signaling may be RRC signaling or MAC signaling or physical layer signaling.
  • the first signaling may be MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • the first signaling determining unit 62 may be specifically configured to:
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value;
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is greater than the second threshold value.
  • the transport block size indicated by the MCS indication information is determined according to a target value of the block error rate BLER, where the target value of the BLER is smaller than 0.1.
  • the first signaling may be channel state information CSI configuration information, where the CSI configuration information is channel quality indication CQI table configuration information and/or modulation and coding policy MCS table configuration information;
  • the first signaling determining unit 62 can be specifically configured to:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • the base station may further include:
  • a first configuration unit 64 configured to configure a CQI table and/or an MCS table that does not include 256QAM for the user equipment when the feedback manner of the HARQ feedback information determined by the feedback manner determining unit 61 is not to feed back the HARQ feedback information;
  • a CQI table and/or an MCS table including 256QAM is configured for the user equipment.
  • the first signaling may be a transmission time interval TTI frame structure configuration information
  • the TTI frame structure configuration information may be frame structure configuration information that the user equipment performs downlink data reception and/or frame structure configuration information that the user equipment performs uplink data transmission.
  • the first signaling determining unit 62 may be specifically configured to:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission .
  • the base station may further include:
  • the second configuration unit 65 is configured to configure the at least two TTI frames of different lengths for the user equipment when the feedback manner of the HARQ feedback information determined by the feedback manner determining unit 61 is not to feed back the HARQ feedback information.
  • the shortest TTI frame structure in the structure; when the feedback manner of the HARQ feedback information determined by the feedback mode determining unit 61 is feedback HARQ feedback information, configuring the at least two different length TTI frame structures for the user equipment The shortest TTI frame structure in Central Africa.
  • the first signaling may be the repetition number information
  • the first signaling determining unit 62 may be specifically configured to:
  • determining the number of repetition times for indicating that the number of repeated transmissions of the same transmission data block is not greater than 1.
  • the base station may further include:
  • the third configuration unit 66 is configured to configure, when the feedback manner of the HARQ feedback information determined by the feedback manner determining unit 61 is not to feed back the HARQ feedback information, to the user equipment, the number of repeated transmissions of the same transport data block. For transmissions greater than 1, the number of repeated transmissions of the same transmission data block is greater than one of the transmission time and/or frequency consecutive resources, or resources that are discontinuous in time and/or frequency.
  • the base station may further include:
  • the retransmission times updating unit 67 is configured to: when the SNR value of the user equipment determined by the feedback manner determining unit 61 is greater than or equal to a preset first threshold value and less than or not greater than a preset third threshold value And updating the number of retransmissions configured by the user equipment, and performing downlink transmission on the user equipment by using the updated number of retransmissions; wherein the number of retransmissions after the update is greater than the preset number of retransmissions.
  • modules or units
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the base station in the embodiment of the present invention can implement the process of the embodiment shown in FIG. 4 of the present invention.
  • the embodiment of the present invention further provides a base station, as shown in FIG. 7, which is a hardware structure diagram of the base station, including a processor 71 and a transmitter 72, where:
  • the processor 71 is configured to determine a feedback mode of the hybrid automatic repeat request HARQ feedback information of the user equipment, and determine the first signaling according to the feedback manner of the HARQ feedback information, where the feedback manner includes: feeding back the HARQ feedback information Or, not feeding back HARQ feedback information; the first signaling implicitly indicating a feedback manner of the HARQ feedback information;
  • a transmitter 72 configured to send the first signaling to the user equipment, where the user equipment is used Determining a feedback manner of the HARQ feedback information according to the first signaling.
  • the processor 71 determines a feedback manner of the HARQ feedback information of the user equipment, which may include:
  • the SNR value of the user equipment is less than or less than a preset first threshold, determining that the user equipment does not feed back the HARQ feedback information; otherwise, determining that the user equipment feeds back the HARQ feedback information.
  • the determining, by the processor, the SNR value of the user equipment may include:
  • the first signaling may be RRC signaling or MAC signaling or physical layer signaling.
  • the first signaling may be MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • the processor determines, by the processor, the first signaling according to the feedback manner of the HARQ feedback information, which may include:
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value;
  • the MCS indication information is determined, and the MCS index value or the TBS index value indicated by the MCS indication information is greater than the second threshold value.
  • the transport block size indicated by the MCS indication information is determined according to a target value of the block error rate BLER, where the target value of the BLER is smaller than 0.1.
  • the first signaling may be CSI configuration information, where the CSI configuration information is channel quality indication CQI table configuration information and/or modulation and coding policy MCS table configuration information;
  • the processor 71 determines the first signaling according to the feedback manner of the HARQ feedback information, and may include:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • the processor 71 is further configured to: before determining the first signaling according to the feedback manner of the HARQ feedback information:
  • the feedback manner of the HARQ feedback information is not to feed back the HARQ feedback information, configure the CQI table and/or the MCS table that does not include 256QAM for the user equipment;
  • a CQI table and/or an MCS table including 256QAM is configured for the user equipment.
  • the first signaling may be TTI frame structure configuration information.
  • the processor 71 determines the first signaling according to the feedback manner of the HARQ feedback information, and may include:
  • the feedback manner of the HARQ feedback information is feedback HARQ feedback information
  • determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission determining TTI frame structure configuration information for instructing the user equipment to use the non-shortest TTI frame structure in the at least two different TTI frame structures for data transmission .
  • the processor 71 is further configured to: before determining the first signaling according to the feedback manner of the HARQ feedback information:
  • the feedback manner of the HARQ feedback information is that the HARQ feedback information is not fed back, configure the shortest TTI frame structure in the TTI frame structure of the at least two different lengths for the user equipment;
  • the user is The device configures a non-shortest TTI frame structure in the at least two different length TTI frame structures.
  • the first signaling may be the repetition number information
  • the processor 71 determines the first signaling according to the feedback manner of the HARQ feedback information, and may include:
  • determining the number of repetition times for indicating that the number of repeated transmissions of the same transmission data block is not greater than 1.
  • the processor 71 is further configured to: before determining the first signaling according to the feedback manner of the HARQ feedback information:
  • the user equipment When the feedback manner of the HARQ feedback information is that the HARQ feedback information is not fed back, the user equipment is configured to perform a transmission with a repeated transmission number of the same transmission data block greater than 1, and the number of repeated transmissions of the same transmission data block Transmissions greater than 1 use resources that are continuous in time and/or frequency, or resources that are not continuous in time and/or frequency.
  • the processor 71 is further configured to:
  • the number of retransmissions is downlinked to the user equipment; wherein the number of retransmissions after the update is greater than the preset number of retransmissions.
  • FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention, including:
  • the first signaling receiving unit 81 is configured to receive first signaling that is sent by the base station to determine a feedback manner of the hybrid automatic repeat request HARQ feedback information of the user equipment, where the feedback manner includes: feedback HARQ feedback Information, or not, feeding back HARQ feedback information; the first signaling implicitly indicating a feedback manner of the HARQ feedback information;
  • the feedback mode determining unit 82 is configured to determine a feedback manner of the HARQ feedback information according to the first signaling received by the first signaling receiving unit.
  • the first signaling may be RRC signaling or MAC signaling or physical layer signaling.
  • the first signaling may be MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • the feedback mode determining unit 82 may be specifically configured to:
  • the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • the first signaling may be CSI configuration information, where the CSI configuration information is CQI table configuration information and/or MCS table configuration information;
  • the feedback mode determining unit 82 may be specifically configured to:
  • the feedback HARQ feedback information is determined when the CSI configuration information indicates that the user equipment uses a CQI table and/or an MCS table containing 256QAM.
  • the first signaling may be TTI frame structure configuration information.
  • the feedback mode determining unit 82 may be specifically configured to:
  • the TTI frame structure configuration information indicates the shortest TTI frame structure among the at least two different length TTI frame structures set in advance, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • the first signaling may be the repetition number information
  • the feedback mode determining unit 82 may be specifically configured to:
  • the repetition number information indicates that the number of repeated transmissions of the same transmission data block is greater than 1, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • modules or units
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the user equipment in the embodiment of the present invention can implement the process of the embodiment shown in FIG. 5 of the present invention.
  • FIG. 1 A schematic diagram of a hardware structure, including a receiver 91 and a processor 92, wherein:
  • the receiver 91 is configured to receive the first signaling that is sent by the base station to determine a feedback manner of the hybrid automatic repeat request (HARQ) information of the user equipment, where the feedback manner includes: feeding back HARQ feedback information, or Not feeding back HARQ feedback information; the first signaling implicitly indicating a feedback manner of the feedback information of the HARQ;
  • HARQ hybrid automatic repeat request
  • the processor 92 is configured to determine a feedback manner of the HARQ feedback information according to the first signaling.
  • the first signaling may be RRC signaling or MAC signaling or physical layer signaling.
  • the first signaling may be MCS indication information;
  • the MCS indication information indicates a transport block size TBS index value corresponding to an MCS index value or an MCS index value;
  • the determining, by the processor 92, the feedback manner of the HARQ feedback information according to the first signaling may include:
  • the MCS index value or the TBS index value indicated by the MCS indication information is not greater than a preset second threshold value, it is determined that the HARQ feedback information is not fed back; otherwise, the user equipment determines to feed back the HARQ feedback information.
  • the first signaling may be CSI configuration information, where the CSI configuration information is CQI table configuration information and/or MCS table configuration information;
  • the determining, by the processor 92, the feedback manner of the HARQ feedback information according to the first signaling may include:
  • the feedback HARQ feedback information is determined when the CSI configuration information indicates that the user equipment uses a CQI table and/or an MCS table containing 256QAM.
  • the first signaling may be TTI frame structure configuration information.
  • the determining, by the processor 92, the feedback manner of the HARQ feedback information according to the first signaling may include:
  • the first signaling may be the repetition number information
  • the determining, by the processor 92, the feedback manner of the HARQ feedback information according to the first signaling may include:
  • the repetition number information indicates that the number of repeated transmissions of the same transmission data block is greater than 1, it is determined that the HARQ feedback information is not fed back; otherwise, the feedback HARQ feedback information is determined.
  • a schematic structural diagram of an information processing system includes: a base station 101 and a user equipment 102, where:
  • the base station 101 is configured to determine a feedback manner of the HARQ feedback information of the user equipment 102 (corresponding to step 41 in the foregoing embodiment); and determine the first signaling according to the feedback manner of the HARQ feedback information (corresponding to the foregoing implementation) Step 42) in the example; sending the first signaling to the user equipment 102 (corresponding to step 43 in the foregoing embodiment); wherein the first signaling implicitly indicates a feedback manner of the HARQ feedback information
  • the feedback manner includes: feeding back HARQ feedback information, or not feeding back HARQ feedback information;
  • the user equipment 102 is configured to receive the first signaling sent by the base station 101 (corresponding to step 51 in the foregoing embodiment); and determine, according to the first signaling, a feedback manner of the HARQ feedback information ( Corresponding to step 51) in the above embodiment.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明实施例涉及通信技术领域,尤其涉及一种信息处理方法和装置,用以解决现有技术中存在的问题。本发明实施例提供的信息处理方法包括:基站确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令;其中,所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;向所述用户设备发送所述第一信令,以便所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。

Description

一种信息处理方法、装置和系统 技术领域
本发明实施例涉及通信技术领域,尤其涉及一种信息处理方法、装置和系统。
背景技术
移动网络中时延是网络的关键绩效指标(Key Performance Indicator,KPI),直接影响着用户的体验。不断出现的新业务(如车联网业务)也对时延提出越来越高的要求。
比如,一些端到端的业务对时延的需求如下:
在运动交互类游戏中的事件触发对时延的需求为小于25ms;
在自动驾驶中的汽车与汽车之间(Car-to-car)的通信对时延的需求为小于30ms;
在远端控制中的来回时间(Round-Trip Time,RTT)对时延的需求为小于50ms;
在智能电网电力自动化保护中对时延的需求为小于8ms;
在公共安全中呼叫建立对时延的需求为小于300ms,而端到端(End To End,E2E)媒体文件传输对时延的需求为小于150ms。
移动通信标准的演进过程中也在不断努力降低时延,空口技术上对时延影响最明显的物理层的调度间隔在宽带码分多址(Wideband Code Division Multiple Access,WCDMA)是10ms,到高速分组接入(High-Speed Packet Access,HSPA)缩短到2ms,到长期演进(Long Term Evolution,LTE)缩短到1ms。小时延的业务需求导致LTE物理层需要引入短传输时间间隔(Transmission Time Interval,TTI)帧结构,进一步缩短调度间隔,TTI可以从1ms缩短为1符号(symbol)到0.5ms之间。其中,上述提及的符号可以是LTE系统中的一个正交频分复用(Orthogonal Frequency Division Multiplexing, OFDM)符号。
如图1所示,为1符号数据传输的来回时间(Round-Trip Time,RTT)时延图。其中,数据传输的RTT为8符号,基于混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)技术,如果基站在符号3向用户设备传输数据,用户设备如果对接收到的该数据正确解调译码,则在符号7向基站反馈确认字符(Acknowledgement,ACK),用户设备如果对接收到的该数据没有正确解调译码,则在符号7向基站反馈否认字符(Negative Acknowledgment,NACK),而基站则在符号11确认收到ACK/NACK。其中,ACK/NACK被称为HARQ反馈信息。用户设备发送HARQ反馈信息有三种可能的情况:第一种是用户设备在符号3没有收到基站调度的数据包的DL grant,从而没有在符号7发送HARQ反馈信息;第二种是用户设备在符号3收到基站调度的数据包但没有正确译码,从而在符号7发送NACK;第三种是用户设备在符号3收到基站调度的数据包并正确译码,从而在符号7发送ACK。相应地,HARQ反馈信息的性能指标分为虚警和误检。其中虚警即用户设备没有发送HARQ反馈信息或发送了NACK,但基站通过检测认为用户设备发送了ACK,对应上述第一种和第二种情况。误检即用户设备发送了ACK,但基站没有检测出ACK,对应上述第三种情况。通常在评估HARQ反馈信息的性能时,会在满足一定虚警指标的条件下看误检的性能。
由于HARQ反馈信息在传输过程中会存在基站误检的情况,进而对网络性能产生影响。随着短TTI帧结构的引入,短TTI数据传输相比于正常的1ms TTI数据传输,基站误检的概率更大,从而对网络性能的影响更大。
以短TTI为1符号为例,分别对1符号TTI的ACK传输时对网络性能的影响和1ms TTI的ACK传输时对网络性能的影响进行分析,发现采用1符号TTI的ACK传输时,在满足虚警的条件下,用户设备发送了ACK而基站未检测到该ACK的概率为0.01时,用户设备的信噪比大约为6.3dB;,而采用1ms TTI的ACK传输时,在同样虚警条件下,用户设备发送了ACK而基站未检测到该ACK的概率也为0.01时,用户设备的信噪比大约为-7.5dB,相比 之下,1符号TTI的ACK传输时ACK的性能相对于1ms TTI的ACK传输时ACK的性能大约损失14dB左右。
因此,在短TTI数据传输的情况下,如何避免HARQ反馈信息给网络性能带来较大损失,是目前亟需要解决的问题。
发明内容
本发明实施例提供一种信息处理方法、装置和系统,用以解决现有技术中存在的HARQ反馈信息给网络性能带来较大损失的问题。
第一方面,提供一种信息处理方法,包括:
基站确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
向所述用户设备发送所述第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
结合第一方面,在第一种可能的实现方式中,基站确定用户设备的HARQ反馈信息的反馈方式,包括:
所述基站确定所述用户设备的信噪比SNR值;
当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,所述基站确定所述用户设备不反馈HARQ反馈信息;否则,所述基站确定所述用户设备反馈HARQ反馈信息。
结合第一方面的第一种可能的实现方式,在第二种可能的实现方式中,所述基站确定所述用户设备的SNR值,包括:
所述基站根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值;或者,
所述基站根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
结合第一方面、第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式,在第三种可能的实现方式中,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
结合第一方面、第一方面的第一种可能的实现方式、第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式,在第四种可能的实现方式中,所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
结合第一方面的第四种可能的实现方式,在第五种可能的实现方式中,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
结合第一方面、第一方面的第一种可能的实现方式、第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式,在第六种可能的实现方式中,所述第一信令为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
结合第一方面的第六种可能的实现方式,在第七种可能的实现方式中,所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
结合第一方面、第一方面的第一种可能的实现方式、第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式,在第八种可能的实现方式中,所述第一信令为传输时间间隔TTI帧结构配置信息;
所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
结合第一方面的第八种可能的实现方式,在第九种可能的实现方式中,所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
结合第一方面、第一方面的第一种可能的实现方式、第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式,在第十种可能的实现方式中,所述第一信令为重复次数信息;
所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
结合第一方面的第十种可能的实现方式,在第十一种可能的实现方式中所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
结合第一方面的第一种可能的实现方式、第一方面的第二种可能的实现方式、第一方面的第三种可能的实现方式、第一方面的第四种可能的实现方式、第一方面的第五种可能的实现方式、第一方面的第六种可能的实现方式、第一方面的第七种可能的实现方式、第一方面的第八种可能的实现方式、第一方面的第九种可能的实现方式、第一方面的第十种可能的实现方式或第一方面的第十一种可能的实现方式,在第十二种可能的实现方式中,所述方法还包括:
当所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,所述基站更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
第二方面,提供了一种信息处理方法,包括:
用户设备接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
所述用户设备根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
结合第二方面,在第一种可能的实现方式中,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
结合第二方面或第二方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
所述用户设备根据所述第一信令,确定所述HARQ反馈信息的反馈方式,包括:
当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,所述用户设备确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
结合第二方面或第二方面的第一种可能的实现方式,在第三种可能的实现方式中,所述第一信令为信道状态信息CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
所述用户设备根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,所述用户设备确定不反馈HARQ反馈信息;
当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,所述用户设备确定反馈HARQ反馈信息。
结合第二方面或第二方面的第一种可能的实现方式,在第四种可能的实现方式中,所述第一信令为传输时间间隔TTI帧结构配置信息;
所述用户设备根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结 构中最短的TTI帧结构时,所述用户设备确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
结合第二方面或第二方面的第一种可能的实现方式,在第五种可能的实现方式中,所述第一信令为重复次数信息;
所述用户设备根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,所述用户设备确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
第三方面,提供了一种基站,包括:
反馈方式确定单元,用于确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
第一信令确定单元,用于根据所述反馈方式确定单元确定的HARQ反馈信息的反馈方式,确定第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
发送单元,用于向所述用户设备发送所述第一信令确定单元确定的第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
结合第三方面,在第一种可能的实现方式中,所述反馈方式确定单元,具体用于:
确定所述用户设备的信噪比SNR值;
当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,确定所述用户设备不反馈HARQ反馈信息;否则,确定所述用户设备反馈HARQ反馈信息。
结合第三方面的第一种可能的实现方式,在第二种可能的实现方式中,所述反馈方式确定单元确定所述用户设备的信噪比SNR值,包括:
根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值; 或者,
根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
结合第三方面、第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式,在第三种可能的实现方式中,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
结合第三方面、第三方面的第一种可能的实现方式、第三方面的第二种可能的实现方式或第三方面的第三种可能的实现方式,在第四种可能的实现方式中,所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
所述第一信令确定单元,具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
结合第三方面的第四种可能的实现方式,在第五种可能的实现方式中,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
结合第三方面、第三方面的第一种可能的实现方式、第三方面的第二种可能的实现方式或第三方面的第三种可能的实现方式,在第六种可能的实现方式中,所述第一信令为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
所述第一信令确定单元,具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于 指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
结合第三方面的第六种可能的实现方式,在第七种可能的实现方式中,所述基站还包括:
第一配置单元,用于当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
结合第三方面、第三方面的第一种可能的实现方式、第三方面的第二种可能的实现方式或第三方面的第三种可能的实现方式,在第八种可能的实现方式中,所述第一信令为传输时间间隔TTI帧结构配置信息;
所述第一信令确定单元,具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
结合第三方面的第八种可能的实现方式,在第九种可能的实现方式中,所述基站还包括:
第二配置单元,用于当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置 所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
结合第三方面、第三方面的第一种可能的实现方式、第三方面的第二种可能的实现方式或第三方面的第三种可能的实现方式,在第十种可能的实现方式中,所述第一信令为重复次数信息;
所述第一信令确定单元,具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
结合第三方面的第十种可能的实现方式,在第十一种可能的实现方式中,所述基站还包括:
第三配置单元,用于当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
结合第三方面的第一种可能的实现方式、第三方面的第二种可能的实现方式、第三方面的第三种可能的实现方式、第三方面的第四种可能的实现方式、第三方面的第五种可能的实现方式、第三方面的第六种可能的实现方式、第三方面的第七种可能的实现方式、第三方面的第八种可能的实现方式、第三方面的第九种可能的实现方式、第三方面的第十种可能的实现方式或第三方面的第十一种可能的实现方式,在第十二种可能的实现方式中,所述基站还包括:
重传次数更新单元,用于当所述反馈方式确定单元确定的所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述 预先设置的重传次数。
第四方面,提供了一种用户设备,包括:
第一信令接收单元,用于接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
反馈方式确定单元,用于根据所述第一信令接收单元接收的第一信令,确定所述HARQ反馈信息的反馈方式。
结合第四方面,在第一种可能的实现方式中,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
结合第四方面或第四方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
所述反馈方式确定单元,具体用于:
当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
结合第四方面或第四方面的第一种可能的实现方式,在第三种可能的实现方式中,所述第一信令为信道状态信息CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
所述反馈方式确定单元,具体用于:
当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,确定不反馈HARQ反馈信息;
当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,确定反馈HARQ反馈信息。
结合第四方面或第四方面的第一种可能的实现方式,在第四种可能的实现方式中,所述第一信令为传输时间间隔TTI帧结构配置信息;
所述反馈方式确定单元,具体用于:
当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
结合第四方面或第四方面的第一种可能的实现方式,在第五种可能的实现方式中,所述第一信令为重复次数信息;
所述反馈方式确定单元,具体用于:
当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
第五方面,提供了一种基站,包括:
处理器,用于确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;根据所述HARQ反馈信息的反馈方式,确定第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
发射器,用于向所述用户设备发送所述第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
结合第五方面,在第一种可能的实现方式中,所述处理器确定用户设备的HARQ反馈信息的反馈方式,包括:
确定所述用户设备的信噪比SNR值;
当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,确定所述用户设备不反馈HARQ反馈信息;否则,确定所述用户设备反馈HARQ反馈信息。
结合第五方面的第一种可能的实现方式,在第二种可能的实现方式中,所述处理器确定所述用户设备的信噪比SNR值,包括:
根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值;或者,
根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
结合第五方面、第五方面的第一种可能的实现方式或第五方面的第二种 可能的实现方式,在第三种可能的实现方式中,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
结合第五方面、第五方面的第一种可能的实现方式、第五方面的第二种可能的实现方式或第五方面的第三种可能的实现方式,在第四种可能的实现方式中,所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
结合第五方面的第四种可能的实现方式,在第五种可能的实现方式中,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
结合第五方面、第五方面的第一种可能的实现方式、第五方面的第二种可能的实现方式或第五方面的第三种可能的实现方式,在第六种可能的实现方式中,所述第一信令为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指 示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
结合第五方面的第六种可能的实现方式,在第七种可能的实现方式中,所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
结合第五方面、第五方面的第一种可能的实现方式、第五方面的第二种可能的实现方式或第五方面的第三种可能的实现方式,在第八种可能的实现方式中,所述第一信令为传输时间间隔TTI帧结构配置信息;
所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
结合第五方面的第八种可能的实现方式,在第九种可能的实现方式中,所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
结合第五方面、第五方面的第一种可能的实现方式、第五方面的第二种可能的实现方式或第五方面的第三种可能的实现方式,在第十种可能的实现方式中,所述第一信令为重复次数信息;
所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
结合第五方面的第十种可能的实现方式,在第十一种可能的实现方式中,所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
结合第五方面的第一种可能的实现方式、第五方面的第二种可能的实现方式、第五方面的第三种可能的实现方式、第五方面的第四种可能的实现方式、第五方面的第五种可能的实现方式、第五方面的第六种可能的实现方式、第五方面的第七种可能的实现方式、第五方面的第八种可能的实现方式、第五方面的第九种可能的实现方式、第五方面的第十种可能的实现方式或第五方面的第十一种可能的实现方式,在第十二种可能的实现方式中,所述处理器还用于:
当所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
第六方面,提供了一种用户设备,包括:
接收器,用于接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
处理器,用于根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
结合第六方面,在第一种可能的实现方式中,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
结合第六方面或第六方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
所述处理器根据所述第一信令,确定所述HARQ反馈信息的反馈方式,包括:
当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
结合第六方面或第六方面的第一种可能的实现方式,在第三种可能的实现方式中,所述第一信令为信道状态信息CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
所述处理器根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,确定不反馈HARQ反馈信息;
当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,确定反馈HARQ反馈信息。
结合第六方面或第六方面的第一种可能的实现方式,在第四种可能的实现方式中,所述第一信令为传输时间间隔TTI帧结构配置信息;
所述处理器根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
结合第六方面或第六方面的第一种可能的实现方式,在第五种可能的实现方式中,所述第一信令为重复次数信息;
所述处理器根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
第七方面,提供了一种信息处理系统,包括基站和用户设备,其中:
所述基站,用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式;根据所述HARQ反馈信息的反馈方式,确定第一信令;向所述用户设备发送所述第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
所述用户设备,用于接收所述基站发送的所述第一信令;根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
本发明实施例中,基站确定用户设备的HARQ反馈信息的反馈方式,并向用户设备发送第一信令,以便用户设备根据该第一信令确定HARQ反馈信息的反馈方式,其中,反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息。这样,当用户设备确定出不反馈HARQ反馈信息时,用户设备和基站进行数据传输时,便不再向基站发送ACK/NACK,从而使得基站减少误检的情况,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
附图说明
为了更清楚地说明本发明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发明的一些实施例,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为现有技术中1符号数据传输的RTT时延图;
图2为1符号TTI的上行ACK反馈对1符号TTI的下行PDSCH传输性能的影响的链路仿真结果图;
图3为对1符号TTI的ACK传输性能曲线;
图4为本发明实施例提供的基站侧实施的信息处理方法的实现流程图;
图5为本发明实施例提供的用户设备侧实施的信息处理方法的实现流程图;
图6为本发明实施例提供的一种基站的结构示意图;
图7为本发明实施例提供的一种基站的硬件结构示意图;
图8为本发明实施例提供的一种用户设备的结构示意图;
图9为本发明实施例提供的一种用户设备的硬件结构示意图;
图10为本发明实施例提供的一种信息处理系统的结构示意图。
具体实施方式
本发明实施例针对现有技术中存在的HARQ反馈信息给网络性能带来较大损失的问题,提出了一种信息处理方案,其核心思想是通过基站确定用户设备的HARQ反馈信息的反馈方式,并向用户设备发送第一信令,以便用户设备根据该第一信令确定HARQ反馈信息的反馈方式,其中,反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息。这样,当用户设备确定不反馈HARQ反馈信息时,用户设备和基站进行数据传输时,用户设备便不再向基站发送ACK/NACK,使基站避免发生误检,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。在不矛盾的情况下,以下各实施例可以互相引用。
还需要说明的是,在本发明实施例中,用户设备(User Equipment,UE)可称之为终端(Terminal)、移动台(Mobile Station,MS)、移动终端(Mobile Terminal)等,该用户设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,例如,用户设备可以是移动电话(或称为“蜂 窝”电话)、具有移动终端的计算机等,例如,用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语音和/或数据。
在本发明实施例中,基站可以是LTE系统中的演进型基站(Evolutional Node B,eNB或e-NodeB)、宏基站、微基站(也称为“小基站”)、微微基站、接入站点(Access Point,AP)或传输站点(Transmission Point,TP)等,本发明对此并不限定。但为描述方便,下述实施例将以基站和用户设备为例进行说明。
如图2所示,为1符号TTI的上行ACK反馈对1符号TTI的下行物理下行共享信道(Physical Downlink Shared CHannel,PDSCH)传输性能的影响的链路仿真结果图,其中,横轴坐标为UE信噪比(Signal Noise Ratio,SNR),纵轴坐标为UE吞吐量(Throughput),图2中给出了在三种不同场景下对下行数据的仿真,即eNB传输下行数据给UE。
参照图2所示:
曲线Normal为在第一种假设条件下对UE吞吐量的统计曲线。
第一种假设条件为:
正常的自适应调制编码(Adaptive Modulation and Coding,AMC),即按照第一次传输的目标误块率(Block Error Rate,BLER)是0.1为该UE的下行数据传输选择调制编码方案(Modulation and Coding Scheme,MCS);对该UE的下行数据传输,如果第一次传输解调失败,基站可以进行重传,同一个数据包最多允许4次传输;理想ACK反馈(即UE接收eNB发送的下行数据,解调译码后反馈给eNB的ACK/NACK不存在被基站误检的情况)。
曲线Method 1为在第二种假设条件下对UE吞吐量的统计曲线。
第二种假设条件为:
正常的AMC,同一个数据包最多允许20次传输,非理想ACK反馈(即UE接收eNB发送的下行数据,解调译码后反馈给eNB的ACK/NACK存在基站误检的情况,比如一部分UE反馈的ACK被基站误检为NACK。非理想 ACK反馈的建模是和1符号TTI的ACK传输性能曲线相关的,如图3所示,为对1符号TTI的ACK传输性能曲线,其中,横轴坐标为UE的SNR,纵轴坐标为ACK的误检概率(Probability),在图3中有三条曲线,其中“☆”对应的曲线为用户设备发送了ACK而基站未检测到该ACK的概率曲线,“O”对应的曲线为用户设备发送了ACK而基站检测到NACK的概率曲线,“×”对应的曲线为用户设备发送了NACK而基站检测到了ACK的概率曲线。参照“☆”对应的曲线,在假设满足虚警的情况下,1符号TTI的ACK反馈在0dB时ACK的误检概率为0.15,在2dB时ACK的误检概率为0.065,在4dB时ACK的误检概率为0.03,在6dB时ACK的误检概率为0.013。其中,以假设满足虚警的情况下,1符号TTI的ACK反馈在2dB时ACK的误检概率为0.065为例,那么基站在2dB时收到UE反馈的ACK有0.065的概率没有被基站正确检测,在基站误检的情况下,即使UE在前一次传输已经正确对数据包进行译码,基站仍然会对该数据包进行重传)。
曲线Method 2为在第三种假设条件下对UE吞吐量的统计曲线。
第三种假设条件为:
保守的AMC(即按照第一次传输的目标误块率小于0.1为该UE的下行数据传输选择MCS,具体实现方法可以为将MCS选择的门限调高2dB,或者将选择的MCS降阶后进行数据调度),没有重传(因为初传BLER很低,基站可以假设UE一次传输就能正确译码),理想ACK反馈。
由上述仿真结果可以看出,曲线Normal几乎是曲线method 1和曲线method 2的曲线的外包络。
因此,根据上述仿真结果图,在低SNR(例如小于2dB)时,可以令用户设备不反馈HARQ反馈信息,从而减小上行链路中的HARQ反馈信息的误检给网络性能带来的损失;在中SNR(例如2dB-8dB)时,可以配置较多的重传次数,通过HARQ增益来减小上行链路中的HARQ反馈信息的误检给网络性能带来的损失;而当高SNR(例如大于8dB)时,由于这时上行链路中的HARQ反馈信息的性能能被保证,可以不进行额外处理。
基于上述分析,本发明实施例提供了一种基站侧实施的信息处理方法,如图4所示,为该方法的实现流程图。该方法包括以下步骤:
步骤41,基站确定用户设备的HARQ反馈信息的反馈方式,其中,反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息。
可选的,该步骤41可以按照如下方式实现:
基站确定用户设备的SNR值;
可选的,所述SNR值是用户设备接收下行数据的信道的SNR值,基站可以根据用户设备上报的信道质量指示(Channel Quality Indicator,CQI)来确定用户设备的SNR值。可选的,所述SNR值是用户设备发送上行数据的信道的SNR值,基站可以根据用户设备发送的上行参考信号(比如探测参考信号(Sounding Reference Signal,SRS)和/或解调参考信号(Demodulation Reference Signal,DMRS)等等)来确定用户设备的SNR值。
当用户设备的SNR值小于或不大于预先设置的第一门限值时,基站确定该用户设备不反馈HARQ反馈信息;否则,基站确定该用户设备反馈HARQ反馈信息。
也就是说,当用户设备的SNR值小于第一门限值时,基站确定该用户设备不反馈HARQ反馈信息;当用户设备的SNR值不小于第一门限值时,基站确定该用户设备反馈HARQ反馈信息。
或者当用户设备的SNR值不大于第一门限值时,基站确定该用户设备不反馈HARQ反馈信息;当用户设备的SNR值大于第一门限值时,基站确定该用户设备反馈HARQ反馈信息。
可选的,当用户设备的SNR值大于或不小于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,基站可以更新对用户设备配置的重传次数,并采用更新后的重传次数对用户设备进行下行PDSCH传输;其中,更新后的重传次数大于预先设置的重传次数。
可选的,根据上述图2的仿真结果,本发明实施例中的第一门限值可以是2dB,第三门限值可以是8dB。
步骤42,基站根据HARQ反馈信息的反馈方式,确定第一信令;其中,第一信令隐式指示HARQ反馈信息的反馈方式。
也就是说,本发明实施例中第一信令是不直接指示HARQ反馈信息的反馈方式的。
可选的,第一信令可以为无线资源控制(Radio Resource Control,RRC)信令或者媒体接入控制(Media Access Control,MAC)信令或者物理层信令。
可选的,第一信令可以为MCS指示信息,该MCS指示信息可以指示MCS索引值或MCS索引值对应的传输块大小(Transport Block Size,TBS)索引值。
则步骤42可以具体包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,基站确定MCS指示信息,该MCS指示信息所指示的MCS索引值或TBS索引值不大于预先设置的第二门限值。
可选的,在这种情况下,基站确定的MCS指示信息指示的TBS索引值是根据误块率(Block Error Rate,BLER)的目标值确定的,BLER的目标值小于0.1。之所以将BLER的目标值修改为小于0.1,目的是通过提高初传成功率来使UE不反馈HARQ反馈信息。
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,基站确定MCS指示信息,该MCS指示信息所指示的MCS索引值或TBS索引值大于第二门限值。
另外,本发明实施例中,步骤42也可以按照如下方式实现:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,基站确定MCS指示信息,该MCS指示信息所指示的MCS索引值或TBS索引值小于预先设置的第二门限值;
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,基站确定MCS指示信息,该MCS指示信息所指示的MCS索引值或TBS索引值不小于第二门限值。
可选的,第一信令还可以为信道状态信息(Channel State Information,CSI)配置信息;其中,CSI配置信息为CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
则步骤42可以具体包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,基站确定用于指示用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,基站确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
可选的,在这种情况下,基站根据HARQ反馈信息的反馈方式,确定第一信令之前,还可以包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为用户设备配置不包含256QAM的CQI表格和/或MCS表格;
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为用户设备配置包含256QAM的CQI表格和/或MCS表格。
可选的,第一信令还可以为TTI帧结构配置信息;
所述TTI帧结构配置信息可以是用户设备进行下行数据接收的帧结构配置信息和/或用户设备进行上行数据发送的帧结构配置信息。
则步骤42可以具体包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,基站确定用于指示用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,基站确定用于指示用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
可选的,在这种情况下,基站根据HARQ反馈信息的反馈方式,确定第 一信令之前,还可以包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为用户设备配置至少两种不同长度的TTI帧结构中最短的TTI帧结构;
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为用户设备配置至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
可选的,第一信令还可以为重复次数信息;
则步骤42可以具体包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,基站确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
当HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,基站确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
可选的,在这种情况下,基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
当HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,基站向用户设备配置对同一个传输数据块的重复传输次数大于1的传输,对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。可选的,该时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源是基站预定义的。
步骤42中,可选的,第一信令是根据每个用户设备确定的。
步骤42中,可选的,第一信令是根据每个资源组确定的。具体的,所述资源组可以是子帧、子帧集合、载波、载波集合、资源块(Resource Block,RB)、资源块集合、CSI进程或CSI进程集合、信道状态信息-参考信号(Channel State Information Reference Resource,CSI-RS)或CSI-RS集合、接入点或接入点集合。具体的,载波可以是指成员载波(Component Carrier,CC);接入点可以指小区对应的基站、射频拉远单元(Remote Radio Unit,RRU)、射频拉远前端(Remote Radio Head,RRH)、宏小区、小小区、微小区、家庭基站等。
步骤43,基站向用户设备发送第一信令,用于用户设备根据第一信令确 定HARQ反馈信息的反馈方式。
其中,如果第一信令是根据每个用户设备确定的,则基站向用户设备发送第一信令时,可以是向每个用户设备分别发送确定出的第一信令;如果第一信令是根据每个资源组确定的,则基站向用户设备发送第一信令时,可以是向每个用户设备分别发送确定出的第一信令,也可以是利用公共信道向所有用户设备发送确定出的第一信令。
本发明实施例中,基站确定用户设备的HARQ反馈信息的反馈方式,并向用户设备发送第一信令,以便用户设备根据根据该第一信令确定HARQ反馈信息的反馈方式,其中,反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息。这样,当用户设备确定不反馈HARQ反馈信息时,用户设备和基站进行数据传输时,用户设备便不再向基站发送ACK/NACK,使基站避免发生误检,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
相应的,本发明实施例还提供了一种用户设备侧实施的信息处理方法,如图5所示,为该方法的实现流程图。该方法包括以下步骤:
步骤51,用户设备接收基站发送的用于确定用户设备的HARQ反馈信息的反馈方式的第一信令;其中,反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;第一信令隐式指示HARQ的反馈信息的反馈方式。
可选的,第一信令可以为RRC信令或者MAC信令或者物理层信令。
步骤52,用户设备根据第一信令,确定HARQ反馈信息的反馈方式。
可选的,第一信令可以为MCS指示信息;
则步骤52可以具体包括:
当MCS指示信息所指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,用户设备确定不反馈HARQ反馈信息;否则,用户设备确定反馈HARQ反馈信息。
或者,当MCS指示信息所指示的MCS索引值或TBS索引值小于第二门限值时,用户设备确定不反馈HARQ反馈信息;否则,用户设备确定反馈 HARQ反馈信息。
可选的,第一信令还可以为CSI配置信息,其中,CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
则步骤52可以具体包括:
当CSI配置信息指示用户设备使用不包含256QAM的CQI表格和/或MCS表格时,用户设备确定不反馈HARQ反馈信息;
当CSI配置信息指示用户设备使用包含256QAM的CQI表格和/或MCS表格时,用户设备确定反馈HARQ反馈信息。
可选的,第一信令还可以为TTI帧结构配置信息;
所述TTI帧结构配置信息可以是用户设备进行下行数据接收的帧结构配置信息和/或用户设备进行上行数据发送的帧结构配置信息。
则步骤52可以具体包括:
当TTI帧结构配置信息指示用户设备使用预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构进行数据传输时,用户设备确定不反馈HARQ反馈信息;否则,用户设备确定反馈HARQ反馈信息。
可选的,第一信令还可以为重复次数信息;
则步骤52可以具体包括:
当重复次数信息指示同一个传输数据块的重复传输次数大于1时,用户设备确定不反馈HARQ反馈信息;否则,用户设备确定反馈HARQ反馈信息。
本发明实施例中,用户设备接收到基站发送的用于确定用户设备的HARQ反馈信息的反馈方式的第一信令,并根据该第一信令确定HARQ反馈信息的反馈方式,其中,反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息。这样,当用户设备确定不反馈HARQ反馈信息时,用户设备和基站进行数据传输时,便不再向基站发送ACK/NACK,从而使基站避免发生误检,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
基于上述发明原理,下面对本发明实施例提供的信息处理方法在实际应用中的实现过程进行详细说明。
实施例一
当第一信令为MCS指示信息时,具体可以分为下述两种情况:
第一种情况:
基站预先设置第二门限值,当基站发送给用户设备的MCS指示信息所指示的MCS索引值或TBS索引值不大于第二门限值时,该MCS指示信息隐式指示该用户设备不对该MCS索引值或TBS索引值对应的数据包进行HARQ反馈;否则,该MCS指示信息隐式指示该用户设备对该MCS索引值或TBS索引值对应的数据包进行HARQ反馈。
具体地,基站根据用户设备发送的SRS和/或DMRS等上行参考信号确定出该用户设备的上行SNR值,当该用户设备的上行SNR值小于或不大于第一门限值时,基站对该用户设备的下行数据传输进行保守调度。例如假设基站根据用户设备上报的CQI确定该用户设备的下行数据传输应使用的MCS索引值为j,那么基站对该MCS索引值进行降阶得到MCS索引值为(j-k),其中k等于1或者2。当(j-k)或(j-k)指示的TBS索引值大于第二门限值时,基站使用隐式指示该用户设备不进行HARQ反馈的最大的MCS索引值对该用户设备调度下行数据传输;否则,基站使用MCS索引值为(j-k)对该用户设备调度下行数据传输。通过这种保守调度,基站对该用户设备的下行数据传输放弃重传,基站通过提高初传成功率可以假定该用户设备正确接收下行数据而不需要进行上行链路中的HARQ反馈,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
第二种情况:
现有LTE系统中的CQI表格是根据目标BLER为0.1制定的。在第二种情况中,基站向用户设备发送的MCS指示信息是根据预先设置的CQI表格和/或MCS表格确定的。其中,在预先设置的CQI表格和/或MCS表格中,在低SNR区域设定较低的目标BLER,比如0.01,而中高SNR区域保持原目标BLER(即0.1)不变。当基站发送给用户设备的MCS指示信息或MCS指示信息指示的MCS等级对应的目标BLER较低时,该MCS指示信息隐式指示 该用户设备不对该MCS对应的数据包进行HARQ反馈;否则,该MCS指示信息隐式指示该用户设备对该MCS对应的数据包进行HARQ反馈。
下述表1给出了一种CQI表格。需要说明的是,下述CQI表格中不同目标BLER(Target BLER)的切换点对应的SNR值可以根据仿真结果来确定。在本发明实施例中,根据图2中的仿真结果,切换点为1-3dB。
另外,下述表1和表2中的SNR范围(SNR range)、Target BLER、ACK反馈(ACK feedback)可以不是表格中必须的列。
表1:
Figure PCTCN2015087863-appb-000001
相应的,MCS表格可以根据CQI表格来确定的,表2给出了根据表1的 CQI表格确定的MCS表格。当基站在调度用户设备时,基站使用的MCS index(MCS索引)对应的目标BLER值隐含指示了用户设备是否需要进行HARQ反馈信息的反馈。以表2为例,当MCS index不大于8时,不进行HARQ反馈信息的反馈。
表2:
Figure PCTCN2015087863-appb-000002
Figure PCTCN2015087863-appb-000003
具体地,基站根据用户设备上报的CQI确定出该用户设备的下行SNR值和/或根据用户设备发送的SRS和/或DMRS等上行参考信号确定出该用户设备的上行SNR值,当该用户设备的上述至少一个SNR值小于或不大于第一门限值时,基站对该用户设备的下行数据传输进行保守调度,以上述表2为例,基站使用不大于8的MCS索引值或TBS索引值对该用户设备调度下行数据传输。通过这种保守调度,基站对该用户设备的下行数据传输放弃重传,基站通过提高初传成功率可以假定该用户设备正确接收下行数据而不需要进行上行链路中的HARQ反馈,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
实施例二
当第一信令为CSI配置信息时,其中,CSI配置信息可以为CQI表格配置信息,也可以为MCS表格配置信息,还可以为CQI表格配置信息和MCS表格配置信息。具体可以分下述两种情况:
第一种情况:
具体的,基站根据用户设备上报的CQI确定出该用户设备的下行SNR值和/或根据用户设备发送的SRS和/或DMRS等上行参考信号确定出该用户设备的上行SNR值,当基站确定该用户设备的上述至少一个SNR值小于或不大于第一门限值时,确定用户设备不反馈HARQ反馈信息,并为用户设备配置不包含256QAM的CQI表格和/或MCS表格;否则,基站确定用户设备反馈HARQ反馈信息,并为用户设备配置包含256QAM的CQI表格和/或MCS表格。然后,基站向用户设备发送CSI配置信息,以便用户设备根据CSI配置信息确定HARQ反馈信息的反馈方式;当CSI配置信息指示用户设备使用不包含256QAM的CQI表格和/或MCS表格时,用户设备确定不反馈HARQ反馈信息;当CSI配置信息指示用户设备使用包含256QAM的CQI表格和/或MCS表格时,用户设备确定反馈HARQ反馈信息。
通过这种方式,基站对低SNR的用户设备的下行数据传输放弃重传。基站通过提高初传成功率可以假定该用户设备正确接收下行数据而不需要进行上行链路中的HARQ反馈,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
以LTE标准为例,下述表3为现有的不包含256QAM的CQI表格,表4为现有的包含256QAM的CQI表格,表5为现有的不包含256QAM的MCS表格,表6为现有的包含256QAM的MCS表格。
表3:
Figure PCTCN2015087863-appb-000004
表4:
Figure PCTCN2015087863-appb-000005
表5:
Figure PCTCN2015087863-appb-000006
Figure PCTCN2015087863-appb-000007
表6:
Figure PCTCN2015087863-appb-000008
Figure PCTCN2015087863-appb-000009
第二种情况:
在设计CQI表格和/或MCS表格时,可以针对不同的目标BLER,设计至少两套CQI表格和/或MCS表格,例如根据现有LTE系统的目标BLER值0.1和小于现有目标BLER的BLER值,如0.01,分别设计CQI和/或MCS表格。
具体的,基站根据用户设备上报的CQI确定出该用户设备的下行SNR值和/或根据用户设备发送的SRS和/或DMRS等上行参考信号确定出该用户设备的上行SNR值,当基站确定该用户设备的上述至少一个SNR值小于或不大于第一门限值时,确定用户设备不反馈HARQ反馈信息,并为用户设备配置 目标BLER较低的CQI表格和/或MCS表格;否则,基站确定用户终端反馈HARQ反馈信息,并为用户设备配置目标BLER较高的CQI表格和/或MCS表格。然后,基站向用户设备发送CSI配置信息,以便用户设备根据CSI配置信息确定HARQ反馈信息的反馈方式;当CSI配置信息指示用户设备使用目标BLER较低的CQI表格和/或MCS表格时,用户设备确定不反馈HARQ反馈信息;当CSI配置信息指示用户设备使用目标BLER较高的CQI表格和/或MCS表格时,用户设备确定反馈HARQ反馈信息。
通过这种方式,基站对低SNR的用户设备的下行数据传输放弃重传。基站通过提高初传成功率可以假定该用户设备正确接收下行数据而不需要进行上行链路中的HARQ反馈,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
实施例三
当第一信令为TTI帧结构配置信息时,具体可以分下述两种情况:
第一种情况:
TTI帧结构配置信息是为每个用户设备配置的信息。基站可以对用户设备配置至少两种不同长度的TTI帧结构进行下行数据传输,具体地,基站通知用户设备至少两个资源组,基站通知用户设备所述至少两个资源组分别对应的TTI帧结构配置信息。具体的,所述资源组可以是子帧、子帧集合、载波、载波集合、资源块、资源块集合、CSI进程或CSI进程集合、CSI-RS或CSI-RS集合、接入点或接入点集合。具体的,载波可以是指成员载波;接入点可以指小区对应的基站、RRU、RRH、宏小区、小小区、微小区、家庭基站等。
当基站对用户设备配置至少两种不同长度的TTI帧结构时,正常情况下用户设备需要对接收到的根据至少两种不同长度的TTI帧结构传输的下行数据进行反馈。为了避免这种情况下可能出现的多个上行HARQ反馈的冲突,基站可以预先定义用户设备对所述至少两种不同长度的TTI帧结构中的第一TTI帧结构不进行反馈或者在冲突时不进行反馈。其中,所述第一帧结构可以是所述至少两种不同长度的TTI帧结构中除最长TTI帧结构外的至少一个TTI 帧结构;所述第一帧结构也可以是所述至少两种不同长度的TTI帧结构中除最短TTI帧结构外的至少一个TTI帧结构;所述第一帧结构还可以是所述至少两种不同长度的TTI帧结构中最短或最长的TTI帧结构。基站还可以根据用户设备在不同的TTI帧结构下上报的CQI确定出不同TTI帧结构下的SNR值,选出其中小于或不大于第一门限值的SNR值或最小的SNR值,该SNR值对应的TTI帧结构为第一帧结构。
以基站通知用户设备两个资源组,基站通知用户设备所述两个资源组分别对应的TTI帧结构配置信息,所述资源组是载波为例:
基站为UE配置两个载波,分别为载波A和载波B,基站通知UE载波A对应的TTI帧结构配置信息和载波B对应的TTI帧结构配置信息,假设载波A对应TTI长度为1ms的帧结构,载波B对应TTI长度为1个OFDM符号的帧结构。在UE对两种帧结构进行上行HARQ反馈或两种帧结构的上行HARQ反馈冲突时,一种可能的实施方式是基站预先定义对最短的TTI帧结构不进行HARQ反馈,那么UE对载波B上传输的下行数据不进行HARQ反馈。又一种可能的实施方式是基站预先定义对最长的TTI帧结构不进行HARQ反馈,那么UE对载波A上传输的下行数据不进行HARQ反馈。又一种可能的实施方式是基站根据用户设备上报的不同TTI帧结构上的CQI确定出不同TTI帧结构的SNR值,选出最小的SNR值,该SNR值对应的TTI帧结构不进行HARQ反馈,假设载波A是受到干扰较小的载波,例如相邻小区的载波是新类型的载波(新类型的载波的小区专有参考信号(cell specific reference signal,CRS)较少或者没有CRS,因此产生的干扰比较小),载波B是干扰较大的载波,因此载波A上传输的信号的SINR较高,载波B上传输的信号的SINR较低,在这种情况下,基站根据UE上报的不同TTI帧结构上的CQI确定出UE对载波B上的TTI帧结构不进行HARQ反馈,UE因为在载波B上上报的CQI比载波A上低,也可以确定对载波B上按1个OFDM符号长度传输的下行数据不进行HARQ反馈。
当UE被调度至少两个不同长度TTI的下行数据传输时,UE对不同长度 TTI的下行数据都反馈上行HARQ信息可能会出现多个上行HARQ信息冲突,通过这种方式,可以消除或减轻多个上行HARQ反馈的冲突。
第二种情况:
TTI帧结构配置信息是为每个资源组配置的信息。基站可以对不同的资源组单独配置TTI帧结构,同一个资源组的用户设备有相同的TTI帧结构。具体的,所述资源组可以是子帧、子帧集合、载波、载波集合、资源块、资源块集合、CSI进程或CSI进程集合、CSI-RS或CSI-RS集合、接入点或接入点集合。具体的,载波可以是指成员载波;接入点可以指小区对应的基站、RRU、RRH、宏小区、小小区、微小区、家庭基站等。基站对资源组配置TTI帧结构时,可以预先定义用户设备对所述资源组对应的TTI帧结构进行反馈或者不进行反馈。
一种可能的实现方式是UE通过被配置的至少两个资源组的TTI帧结构配置信息来确定是否需要对该资源组的下行数据传输反馈上行HARQ信息,这种情况下要求UE需要支持至少两个资源组的下行接收。以资源组是载波,一共有两个资源组为例,假设系统中存在两个载波,分别为载波A和载波B,均可以为该UE服务,在UE接收两个载波上传输的数据的过程中,基站预定义该两个载波上长度较短的TTI帧结构对应的上行不反馈HARQ反馈信息,长度较长的TTI帧结构对应的上行反馈HARQ反馈信息。例如,
1、载波A配置为short TTI帧结构,载波B配置为1ms TTI帧结构,则UE对载波A上接收的下行数据不反馈HARQ反馈信息,对载波B上接收的下行数据反馈HARQ反馈信息。
2、载波A和载波B配置的TTI帧结构均为short TTI帧结构,其中,载波A配置为0.5ms的TTI帧结构,载波B配置为1个OFDM符号的TTI帧结构。UE对载波A上接收的下行数据反馈HARQ反馈信息,对载波B上接收的下行数据不反馈HARQ反馈信息。
另外,还需要说明的是,当基站为用户设备预先设置了至少两种不同长度的TTI帧结构时,只要设置不同长度的TTI帧结构对应的不同的HARQ反 馈方式即可,本发明实施例中对不同长度的TTI帧结构对应哪种HARQ反馈方式可以不作限定。
在这种情况下,对于只支持一个资源组的UE,基站可以假定其总是进行HARQ反馈或者不进行HARQ反馈或者基站用显示信令通知UE是否要进行HARQ反馈。
当UE被调度至少两个不同长度TTI的下行数据传输时,UE对不同长度TTI的下行数据都反馈上行HARQ信息可能会出现多个上行HARQ信息冲突,通过这种方式,可以消除或减轻多个上行HARQ反馈的冲突。
另一种可能的实现方式是基站对不同的资源组单独配置TTI帧结构,并预定义不同长度的TTI帧结构对应的不同的HARQ反馈方式。以资源组是载波,一共有两个资源组为例,假设系统中存在两个载波,分别为载波A和载波B,载波A配置为short TTI帧结构,载波B配置为1ms TTI帧结构,基站预定义short TTI帧结构对应的上行不反馈HARQ反馈信息,1ms TTI帧结构对应的上行反馈HARQ反馈信息。当UE被配置载波A的数据传输时,对应的上行不反馈HARQ反馈信息;当UE被配置载波B的数据传输时,对应的上行反馈HARQ反馈信息。这种方式对于只支持一个资源组的UE同样适用。
实施例四
当第一信令为重复次数信息时,具体流程如下:
基站根据用户设备发送的SRS和/或DMRS等上行参考信号确定出该用户设备的上行SNR值,当该用户设备的上行SNR值小于或不大于第一门限值时,基站对用户设备的下行传输采用多次盲重传的方式,即当基站确定用户设备不反馈HARQ反馈信息时,基站向用户设备配置对同一个传输数据块的重复传输次数大于1的传输,其中,对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。而用户设备确定出重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,用户设备确定反馈HARQ反馈信息。
通过基站对同一个数据包盲重传的方式,UE可以对同一个数据包进行合并,提高该数据包的解调SNR,从而提高该数据包的传输成功率。基站假定该UE可以正确接收该数据包而不需要进行上行链路中的HARQ反馈,从而减小上行链路中的HARQ反馈信息给网络性能带来的损失。
基于同一发明构思,本发明实施例中还分别提供了一种用于实现上述信息处理方法的基站和用户设备以及一种信息处理系统,由于上述基站、用户设备和系统解决问题的原理与基站侧实施的信息处理方法和用户设备侧实施的信息处理方法相似,因此上述基站、用户设备和系统的实施可以参见方法的实施,重复之处不再赘述。
如图6所示,为本发明实施例提供的基站的结构示意图,包括:
反馈方式确定单元61,用于确定用户设备的HARQ反馈信息的反馈方式;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
第一信令确定单元62,用于根据所述反馈方式确定单元61确定的HARQ反馈信息的反馈方式,确定第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
发送单元63,用于向所述用户设备发送所述第一信令确定单元62确定的第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
可选的,所述反馈方式确定单元61,可以具体用于:
确定所述用户设备的信噪比SNR值;
当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,确定所述用户设备不反馈HARQ反馈信息;否则,确定所述用户设备反馈HARQ反馈信息。
也就是说,当用户设备的SNR值小于第一门限值时,基站确定该用户设备不反馈HARQ反馈信息;当用户设备的SNR值不小于第一门限值时,基站确定该用户设备反馈HARQ反馈信息。
或者当用户设备的SNR值不大于第一门限值时,基站确定该用户设备不反馈HARQ反馈信息;当用户设备的SNR值大于第一门限值时,基站确定该用户设备反馈HARQ反馈信息。
可选的,所述反馈方式确定单元61确定所述用户设备的信噪比SNR值,可以包括:
根据所述用户设备上报的CQI确定所述用户设备的SNR值;或者,
根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
可选的,所述第一信令可以为RRC信令或者MAC信令或者物理层信令。
可选的,所述第一信令可以为MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
则第一信令确定单元62,可以具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
可选的,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
可选的,所述第一信令可以为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
则第一信令确定单元62可以具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
在这种情况下,基站还可以包括:
第一配置单元64,用于当所反馈方式确定单元61确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;当所述反馈方式确定单元61确定的所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
可选的,所述第一信令可以为传输时间间隔TTI帧结构配置信息;
所述TTI帧结构配置信息可以是用户设备进行下行数据接收的帧结构配置信息和/或用户设备进行上行数据发送的帧结构配置信息。
则所述第一信令确定单元62可以具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
在这种情况下,基站还可以包括:
第二配置单元65,用于当所述反馈方式确定单元61确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;当所述反馈方式确定单元61确定的所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
可选的,所述第一信令可以为重复次数信息;
则所述第一信令确定单元62可以具体用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
在这种情况下,基站还可以包括:
第三配置单元66,用于当所述反馈方式确定单元61确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
可选的,所述基站还可以包括:
重传次数更新单元67,用于当所述反馈方式确定单元61确定的用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
为了描述的方便,以上各部分按照功能划分为各模块(或单元)分别描述。当然,在实施本发明时可以把各模块(或单元)的功能在同一个或多个软件或硬件中实现。
本发明实施例中的基站可以实现本发明图4所示实施例的流程。
相应的,本发明实施例还提出一种基站,如图7所示,为该基站的硬件结构示意图,包括处理器71和发射器72,其中:
处理器71,用于确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;根据所述HARQ反馈信息的反馈方式,确定第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
发射器72,用于向所述用户设备发送所述第一信令,用于所述用户设备 根据所述第一信令确定所述HARQ反馈信息的反馈方式。
可选的,所述处理器71确定用户设备的HARQ反馈信息的反馈方式,可以包括:
确定所述用户设备的信噪比SNR值;
当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,确定所述用户设备不反馈HARQ反馈信息;否则,确定所述用户设备反馈HARQ反馈信息。
可选的,所述处理器71确定所述用户设备的信噪比SNR值,可以包括:
根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值;或者,
根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
可选的,所述第一信令可以为RRC信令或者MAC信令或者物理层信令。
可选的,所述第一信令可以为MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
则所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,可以包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
可选的,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
可选的,所述第一信令可以为CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
则所述处理器71根据所述HARQ反馈信息的反馈方式,确定第一信令,可以包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
可选的,所述处理器71根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还可以用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
可选的,所述第一信令可以为TTI帧结构配置信息;
则所述处理器71根据所述HARQ反馈信息的反馈方式,确定第一信令,可以包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
可选的,所述处理器71根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还可以用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户 设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
可选的,所述第一信令可以为重复次数信息;
则所述处理器71根据所述HARQ反馈信息的反馈方式,确定第一信令,可以包括:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
可选的,所述处理器71根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还可以用于:
当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
可选的,所述处理器71还可以用于:
当所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
如图8所示,为本发明实施例提供的用户设备的结构示意图,包括:
第一信令接收单元81,用于接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
反馈方式确定单元82,用于根据所述第一信令接收单元接收的第一信令,确定所述HARQ反馈信息的反馈方式。
可选的,所述第一信令可以为RRC信令或者MAC信令或者物理层信令。
可选的,所述第一信令可以为MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
则所述反馈方式确定单元82,可以具体用于:
当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
可选的,所述第一信令可以为CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
则所述反馈方式确定单元82,可以具体用于:
当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,确定不反馈HARQ反馈信息;
当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,确定反馈HARQ反馈信息。
可选的,所述第一信令可以为TTI帧结构配置信息;
则所述反馈方式确定单元82,可以具体用于:
当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
可选的,所述第一信令可以为重复次数信息;
则所述反馈方式确定单元82,可以具体用于:
当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
为了描述的方便,以上各部分按照功能划分为各模块(或单元)分别描述。当然,在实施本发明时可以把各模块(或单元)的功能在同一个或多个软件或硬件中实现。
本发明实施例中的用户设备可以实现本发明图5所示实施例的流程。
相应的,本发明实施例还提出一种用户设备,如图9所示,为该用户设 备的硬件结构示意图,包括接收器91和处理器92,其中:
接收器91,用于接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
处理器92,用于根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
可选的,所述第一信令可以为RRC信令或者MAC信令或者物理层信令。
可选的,所述第一信令可以为MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
则所述处理器92根据所述第一信令,确定所述HARQ反馈信息的反馈方式,可以包括:
当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
可选的,所述第一信令可以为CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
所述处理器92根据所述第一信令,确定HARQ反馈信息的反馈方式,可以包括:
当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,确定不反馈HARQ反馈信息;
当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,确定反馈HARQ反馈信息。
可选的,所述第一信令可以为TTI帧结构配置信息;
则所述处理器92根据所述第一信令,确定HARQ反馈信息的反馈方式,可以包括:
当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ 反馈信息。
可选的,所述第一信令可以为重复次数信息;
则所述处理器92根据所述第一信令,确定HARQ反馈信息的反馈方式,可以包括:
当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
如图10所示,为本发明实施例提供的一种信息处理系统的结构示意图,包括:基站101和用户设备102,其中:
所述基站101,用于确定所述用户设备102的HARQ反馈信息的反馈方式(对应上述实施例中的步骤41);根据所述HARQ反馈信息的反馈方式,确定第一信令(对应上述实施例中的步骤42);向所述用户设备102发送所述第一信令(对应上述实施例中的步骤43);其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
所述用户设备102,用于接收所述基站101发送的所述第一信令(对应上述实施例中的步骤51);根据所述第一信令,确定所述HARQ反馈信息的反馈方式(对应上述实施例中的步骤51)。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样,倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (58)

  1. 一种信息处理方法,其特征在于,包括:
    基站确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
    所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
    向所述用户设备发送所述第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
  2. 如权利要求1所述的方法,其特征在于,基站确定用户设备的HARQ反馈信息的反馈方式,包括:
    所述基站确定所述用户设备的信噪比SNR值;
    当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,所述基站确定所述用户设备不反馈HARQ反馈信息;否则,所述基站确定所述用户设备反馈HARQ反馈信息。
  3. 如权利要求2所述的方法,其特征在于,所述基站确定所述用户设备的SNR值,包括:
    所述基站根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值;或者,
    所述基站根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
  4. 如权利要求1-3任意一项所述的方法,其特征在于,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
  5. 如权利要求1-4任意一项所述的方法,其特征在于,
    所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
    所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
  6. 如权利要求5所述的方法,其特征在于,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
  7. 如权利要求1-4任意一项所述的方法,其特征在于,
    所述第一信令为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
    所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
  8. 如权利要求7所述的方法,其特征在于,所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
  9. 如权利要求1-4任意一项所述的方法,其特征在于,
    所述第一信令为传输时间间隔TTI帧结构配置信息;
    所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
  10. 如权利要求9所述的方法,其特征在于,所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
  11. 如权利要求1-4任意一项所述的方法,其特征在于,
    所述第一信令为重复次数信息;
    所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,所述基站确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
  12. 如权利要求11所述的方法,其特征在于,所述基站根据所述HARQ反馈信息的反馈方式,确定第一信令之前,所述方法还包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述基站向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
  13. 如权利要求2-12任意一项所述的方法,其特征在于,所述方法还包括:
    当所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,所述基站更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
  14. 一种信息处理方法,其特征在于,包括:
    用户设备接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
    所述用户设备根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
  15. 如权利要求14所述的方法,其特征在于,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
  16. 如权利要求14或15所述的方法,其特征在于,
    所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
    所述用户设备根据所述第一信令,确定所述HARQ反馈信息的反馈方式,包括:
    当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,所述用户设备确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
  17. 如权利要求14或15所述的方法,其特征在于,
    所述第一信令为信道状态信息CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
    所述用户设备根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
    当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,所述用户设备确定不反馈HARQ反馈信息;
    当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,所述用户设备确定反馈HARQ反馈信息。
  18. 如权利要求14或15所述的方法,其特征在于,
    所述第一信令为传输时间间隔TTI帧结构配置信息;
    所述用户设备根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
    当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,所述用户设备确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
  19. 如权利要求14或15所述的方法,其特征在于,所述第一信令为重复次数信息;
    所述用户设备根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
    当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,所述用户设备确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
  20. 一种基站,其特征在于,包括:
    反馈方式确定单元,用于确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
    第一信令确定单元,用于根据所述反馈方式确定单元确定的HARQ反馈信息的反馈方式,确定第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
    发送单元,用于向所述用户设备发送所述第一信令确定单元确定的第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
  21. 如权利要求20所述的基站,其特征在于,所述反馈方式确定单元,具体用于:
    确定所述用户设备的信噪比SNR值;
    当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,确定所述用户设备不反馈HARQ反馈信息;否则,确定所述用户设备反馈HARQ反馈信息。
  22. 如权利要求21所述的基站,其特征在于,所述反馈方式确定单元确定所述用户设备的信噪比SNR值,包括:
    根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值;或者,
    根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
  23. 如权利要求20-22任意一项所述的基站,其特征在于,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
  24. 如权利要求20-23任意一项所述的基站,其特征在于,
    所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
    所述第一信令确定单元,具体用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
  25. 如权利要求24所述的基站,其特征在于,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
  26. 如权利要求20-23任意一项所述的基站,其特征在于,
    所述第一信令为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
    所述第一信令确定单元,具体用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
  27. 如权利要求26所述的基站,其特征在于,所述基站还包括:
    第一配置单元,用于当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
  28. 如权利要求20-23任意一项所述的基站,其特征在于,
    所述第一信令为传输时间间隔TTI帧结构配置信息;
    所述第一信令确定单元,具体用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
  29. 如权利要求28所述的基站,其特征在于,所述基站还包括:
    第二配置单元,用于当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;当所述反馈方式确定单元确 定的所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
  30. 如权利要求20-23任意一项所述的基站,其特征在于,
    所述第一信令为重复次数信息;
    所述第一信令确定单元,具体用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
  31. 如如权利要求30所述的基站,其特征在于,所述基站还包括:
    第三配置单元,用于当所述反馈方式确定单元确定的所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
  32. 如权利要求21-31任意一项所述的方法,其特征在于,所述基站还包括:
    重传次数更新单元,用于当所述反馈方式确定单元确定的所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
  33. 一种用户设备,其特征在于,包括:
    第一信令接收单元,用于接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
    反馈方式确定单元,用于根据所述第一信令接收单元接收的第一信令,确定所述HARQ反馈信息的反馈方式。
  34. 如权利要求33所述的用户设备,其特征在于,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
  35. 如权利要求33或34所述的用户设备,其特征在于,
    所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
    所述反馈方式确定单元,具体用于:
    当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
  36. 如权利要求33或34所述的用户设备,其特征在于,
    所述第一信令为信道状态信息CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
    所述反馈方式确定单元,具体用于:
    当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,确定不反馈HARQ反馈信息;
    当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格时,确定反馈HARQ反馈信息。
  37. 如权利要求33或34所述的用户设备,其特征在于,
    所述第一信令为传输时间间隔TTI帧结构配置信息;
    所述反馈方式确定单元,具体用于:
    当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
  38. 如权利要求33或34所述的用户设备,其特征在于,
    所述第一信令为重复次数信息;
    所述反馈方式确定单元,具体用于:
    当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
  39. 一种基站,其特征在于,包括:
    处理器,用于确定用户设备的混合自动重传请求HARQ反馈信息的反馈方式;根据所述HARQ反馈信息的反馈方式,确定第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ反馈信息的反馈方式;
    发射器,用于向所述用户设备发送所述第一信令,用于所述用户设备根据所述第一信令确定所述HARQ反馈信息的反馈方式。
  40. 如权利要求39所述的基站,其特征在于,所述处理器确定用户设备的HARQ反馈信息的反馈方式,包括:
    确定所述用户设备的信噪比SNR值;
    当所述用户设备的SNR值小于或不大于预先设置的第一门限值时,确定所述用户设备不反馈HARQ反馈信息;否则,确定所述用户设备反馈HARQ反馈信息。
  41. 如权利要求40所述的基站,其特征在于,所述处理器确定所述用户设备的信噪比SNR值,包括:
    根据所述用户设备上报的信道质量指示CQI确定所述用户设备的SNR值;或者,
    根据所述用户设备发送的上行参考信号确定所述用户设备的SNR值。
  42. 如权利要求39-41任意一项所述的基站,其特征在于,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
  43. 如权利要求39-42任意一项所述的基站,其特征在于,
    所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
    所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定MCS指示信息,所述MCS指示信息指示的MCS索引值或TBS索引值大于所述第二门限值。
  44. 如权利要求43所述的基站,其特征在于,当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,所述MCS指示信息指示的传输块大小是根据误块率BLER的目标值确定的,所述BLER的目标值小于0.1。
  45. 如权利要求39-42任意一项所述的基站,其特征在于,
    所述第一信令为信道状态信息CSI配置信息;其中,所述CSI配置信息为信道质量指示CQI表格配置信息和/或调制与编码策略MCS表格配置信息;
    所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格的CSI配置信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用包含256QAM的CQI表格和/或MCS表格的CSI配置信息。
  46. 如权利要求45所述的基站,其特征在于,所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置不包含256QAM的CQI表格和/或MCS表格;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置包含256QAM的CQI表格和/或MCS表格。
  47. 如权利要求39-42任意一项所述的基站,其特征在于,
    所述第一信令为传输时间间隔TTI帧结构配置信息;
    所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示所述用户设备使用预先设置的至少两种不同TTI帧结构中最短的TTI帧结构进行数据传输的TTI帧结构配置信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示所述用户设备使用所述至少两种不同TTI帧结构中非最短的TTI帧结构进行数据传输的TTI帧结构配置信息。
  48. 如权利要求47所述的基站,其特征在于,所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中最短的TTI帧结构;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,为所述用户设备配置所述至少两种不同长度的TTI帧结构中非最短的TTI帧结构。
  49. 如权利要求39-42任意一项所述的基站,其特征在于,
    所述第一信令为重复次数信息;
    所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令,包括:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数大于1的重复次数信息;
    当所述HARQ反馈信息的反馈方式为反馈HARQ反馈信息时,确定用于指示同一个传输数据块的重复传输次数不大于1的重复次数信息。
  50. 如权利要求49所述的基站,其特征在于,所述处理器根据所述HARQ反馈信息的反馈方式,确定第一信令之前,还用于:
    当所述HARQ反馈信息的反馈方式为不反馈HARQ反馈信息时,向所述用户设备配置对同一个传输数据块的重复传输次数大于1的传输,所述对同一个传输数据块的重复传输次数大于1的传输使用时间和/或频率上连续的资源,或者时间和/或频率上不连续的资源。
  51. 如权利要求40-50任意一项所述的基站,其特征在于,所述处理器还用于:
    当所述用户设备的SNR值大于或大于等于预先设置的第一门限值且小于或不大于预先设置的第三门限值时,更新对所述用户设备配置的重传次数,并采用更新后的重传次数对所述用户设备进行下行传输;其中,所述更新后的重传次数大于所述预先设置的重传次数。
  52. 一种用户设备,其特征在于,包括:
    接收器,用于接收基站发送的用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式的第一信令;其中,所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;所述第一信令隐式指示所述HARQ的反馈信息的反馈方式;
    处理器,用于根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
  53. 如权利要求52所述的用户设备,其特征在于,所述第一信令为无线资源控制RRC信令或者媒体接入控制MAC信令或者物理层信令。
  54. 如权利要求52或53所述的用户设备,其特征在于,
    所述第一信令为调制编码方案MCS指示信息;所述MCS指示信息指示MCS索引值或MCS索引值对应的传输块大小TBS索引值;
    所述处理器根据所述第一信令,确定所述HARQ反馈信息的反馈方式,包括:
    当所述MCS指示信息指示的MCS索引值或TBS索引值不大于预先设置的第二门限值时,确定不反馈HARQ反馈信息;否则,所述用户设备确定反馈HARQ反馈信息。
  55. 如权利要求52或53所述的用户设备,其特征在于,
    所述第一信令为信道状态信息CSI配置信息,其中,所述CSI配置信息为CQI表格配置信息和/或MCS表格配置信息;
    所述处理器根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
    当所述CSI配置信息指示所述用户设备使用不包含256QAM的CQI表格和/或MCS表格时,确定不反馈HARQ反馈信息;
    当所述CSI配置信息指示所述用户设备使用包含256QAM的CQI表格和/或 MCS表格时,确定反馈HARQ反馈信息。
  56. 如权利要求52或53所述的用户设备,其特征在于,
    所述第一信令为传输时间间隔TTI帧结构配置信息;
    所述处理器根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
    当所述TTI帧结构配置信息指示预先设置的至少两种不同长度的TTI帧结构中最短的TTI帧结构时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
  57. 如权利要求52或53所述的用户设备,其特征在于,
    所述第一信令为重复次数信息;
    所述处理器根据所述第一信令,确定HARQ反馈信息的反馈方式,包括:
    当所述重复次数信息指示同一个传输数据块的重复传输次数大于1时,确定不反馈HARQ反馈信息;否则,确定反馈HARQ反馈信息。
  58. 一种信息处理系统,其特征在于,包括基站和用户设备,其中:
    所述基站,用于确定所述用户设备的混合自动重传请求HARQ反馈信息的反馈方式;根据所述HARQ反馈信息的反馈方式,确定第一信令;向所述用户设备发送所述第一信令;其中,所述第一信令隐式指示所述HARQ反馈信息的反馈方式;所述反馈方式包括:反馈HARQ反馈信息,或者,不反馈HARQ反馈信息;
    所述用户设备,用于接收所述基站发送的所述第一信令;根据所述第一信令,确定所述HARQ反馈信息的反馈方式。
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