WO2018059591A1 - 一种数据传输的方法和装置 - Google Patents
一种数据传输的方法和装置 Download PDFInfo
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- WO2018059591A1 WO2018059591A1 PCT/CN2017/105045 CN2017105045W WO2018059591A1 WO 2018059591 A1 WO2018059591 A1 WO 2018059591A1 CN 2017105045 W CN2017105045 W CN 2017105045W WO 2018059591 A1 WO2018059591 A1 WO 2018059591A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1806—Go-back-N protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Definitions
- the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for data transmission.
- the transmission of services in the LTE (Long Term Evolution) system is based on base station scheduling, and the basic time unit of scheduling is one subframe.
- the duration of one subframe is generally 1 ms, one subframe generally includes two slots, one slot generally includes seven time domain symbols, and the time domain symbol refers to OFDM or SC-FDMA symbols in the time domain dimension.
- the specific scheduling process includes the base station transmitting a control channel (such as a PDCCH), the UE detecting the control channel in the subframe, and performing downlink data channel reception or uplink data channel transmission according to the detected scheduling information carried in the control channel.
- the control channel may carry scheduling information of a downlink data channel (such as a PDSCH) or an uplink data channel (such as a PUSCH), and the scheduling information includes control information such as resource allocation information, modulation and coding mode, and HARQ.
- the LTE adopts the HARQ mechanism.
- the UE after receiving the transport block TB carried in the PDSCH, the UE feeds back the ACK on the uplink if the reception is correct, and returns the NACK on the uplink if it is not correct.
- the UE After receiving the PDSCH in the subframe n-4, the UE feeds back the ACK/NACK in the subframe n.
- the timing relationship between the PDSCH reception and the corresponding ACK/NACK feedback is related to the TDD uplink and downlink configuration.
- the base station may cause the UE to retransmit the TB carried in the last PDSCH transmission, and the base station may retransmit the received information of the TB in the received PDSCH and the previously not correctly received.
- the received information of the TB is HARQ combined to improve the receiving performance.
- 5G In addition to eMBB, which further enhances 4G mobile broadband MBB, 5G also supports mMTC and URLLC.
- URLLC there are two basic requirements. One is the short delay caused by the service emergency. For example, the upstream and downstream user plane delays specified in the current requirements are both 0.5ms; the second is the high reliability, such as within 1ms. A packet error rate of 10 ⁇ (-5) is reached.
- a bursty URLLC emergency service can punct eMBB services that have already been transmitted.
- the so-called puncturing that is to say, the service mapping of the URLLC covers a part of the resources of the downlink data channel of the eMBB that has started to transmit in the time-frequency resource.
- the performance of the initial transmission or retransmission of the eMBB is lost, that is, the current transmission of the TB of the eMBB is highly unlikely to be correctly received by the eMBB UE.
- the LTE LTE system branch or the NR system branch of the 5G can adopt the HARQ mechanism.
- the UE after the UE receives the TB carried in the downlink data channel, if the receiving is correct, the UE feeds back the ACK on the uplink; if incorrect , then NACK is fed back on the uplink.
- Current data scheduling and HARQ are in terabytes. Specifically, even if one CB in the TB is not correctly received, the TB CRC of the entire TB cannot be verified, that is, the UE still considers that the TB is not correctly received, and then feeds back the NACK to the base station. After receiving the NACK, the base station can only consider that the entire TB is not correctly received by the UE.
- the base station subsequently performs retransmission scheduling on the entire TB of the UE. Even if the entire TB is retransmitted, the UE cannot correctly receive the TB by means of HARQ combining.
- the UE cannot know which CB was punctured by the URLLC during the last transmission, so the UE reverses While the NACK is being fed, the UE's own HARQ buffer may store the URLLC service instead of its own CB. Therefore, the HARQ combining with the retransmitted CB cannot obtain the HARQ combining gain, but the CB cannot be correctly received again. In the end, it will most likely trigger the retransmission of the RLC layer, resulting in a significant drop in system efficiency.
- This paper describes a method and apparatus for data transmission that provides a more efficient method of data transmission processing in the context of short bursts of short duration.
- a terminal device provided by an embodiment of the present invention includes:
- a receiving unit configured to receive control information sent by the radio access network device and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, ???each of the at least one transport block includes at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- a processing unit configured to determine, according to the indication information of the affected coding block, the affected coding block;
- the receiving unit is further configured to receive the at least one transport block according to the control information and the determined affected coding block.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- the identification information of the affected coding block includes:
- An index of the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and sequentially a coded block before or after the first coded block; or
- An index of the first coding block group, the affected coding block includes coding blocks that are sequentially before or after the first coding block group, or the affected coding block includes the first coding block group and sequence A coded block preceding or following the first set of coding blocks.
- the identifier information of the resource corresponding to the affected coding block includes:
- An index of a resource corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and a sequence a coded block preceding or following the first coded block; or
- An index of a resource group corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block group, or the affected coding block includes the first coding block Group and order A coded block before or after the first coded block group.
- the control information carries indication information of the affected coding block; if the at least one transport block is a HARQ initial transmission And transmitting, by the control information, the indication information of the affected coding block.
- the at least one transport block is a transport block of HARQ retransmission
- the indication information of the affected coding block is carried in a modulation coding indication field in the control information.
- the receiving unit is configured to receive the at least one transport block, and perform HARQ merging on data corresponding to the affected coded block.
- the terminal device further includes:
- a sending unit configured to send first indication information to the radio access network device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block And a coding block other than the affected coding block, where the first indication information includes a smaller number of bits than the second coding block.
- the indication information of the affected coding block further includes: whether the information of the affected coding block is included.
- the number of bits of the first indication information is one.
- the sending unit is further configured to send the second indication information to the radio access network device, where the second indication information is used to indicate whether the affected coding block is correctly received.
- the number of bits of the second indication information is one.
- the terminal device does not send, to the radio access network device, indication information that the affected coding block is correctly received.
- an embodiment of the present invention provides a radio access network device, including:
- a sending unit configured to send control information and indication information of the affected coding block to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transport block Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- the sending unit is further configured to send, to the terminal device, at least one coding block in the at least one transport block except the affected coding block.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- the identification information of the affected coding block includes:
- An index of the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and sequentially a coded block before or after the first coded block; or
- An index of the first coding block group, the affected coding block includes coding blocks that are sequentially before or after the first coding block group, or the affected coding block includes the first coding block group and sequence A coded block preceding or following the first set of coding blocks.
- the identifier information of the resource corresponding to the affected coding block includes:
- An index of a resource corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and a sequence a coded block preceding or following the first coded block; or
- An index of a resource group corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block group, or the affected coding block includes the first coding block A group and a coded block in sequence before or after the first group of coded blocks.
- the control information carries indication information of the affected coding block; if the at least one transport block is a HARQ initial transmission And transmitting, by the control information, the indication information of the affected coding block.
- the at least one transport block is a transport block of HARQ retransmission
- the indication information of the affected coding block is carried in a modulation coding indication field in the control information.
- the radio access network device further includes:
- a receiving unit configured to receive first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block A coding block other than the affected coding block, the first indication information includes fewer bits than the second coding block.
- an embodiment of the present invention provides a data transmission method, including:
- control information sent by the radio access network device and indication information of the affected coding block where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transmission Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- the terminal device receives the at least one transport block according to the control information and the determined affected coding block.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- the identification information of the affected coding block includes:
- An index of the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and sequentially a coded block before or after the first coded block; or
- An index of the first coding block group, the affected coding block includes coding blocks that are sequentially before or after the first coding block group, or the affected coding block includes the first coding block group and sequence A coded block preceding or following the first set of coding blocks.
- the identifier information of the resource corresponding to the affected coding block includes:
- An index of a resource corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and a sequence a coded block preceding or following the first coded block; or
- An index of a resource group corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block group, or the affected coding block includes the first coding block A group and a coded block in sequence before or after the first group of coded blocks.
- the control information carries indication information of the affected coding block; if the at least one transport block is a HARQ initial transmission And transmitting, by the control information, the indication information of the affected coding block.
- the at least one transport block is a transport block of HARQ retransmission
- the indication information of the affected coding block is carried in a modulation coding indication field in the control information.
- the terminal device receives the at least one transport block according to the control information and the determined affected coding block, including:
- the terminal device does not perform HARQ merging on the data corresponding to the affected coded block.
- the method further includes:
- the terminal device Transmitting, by the terminal device, the first indication information to the radio access network device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block
- the first indication information includes fewer bits than the second coding block.
- the indication information of the affected coding block further includes: whether the information of the affected coding block is included.
- the terminal device sends the first indication information to the radio access network device, including:
- the terminal device sends an acknowledgement bit to the radio access network device, and if at least one second coding block is not correctly received, the terminal device is The radio access network device sends an unacknowledged bit.
- the method further includes:
- the terminal device sends second indication information to the radio access network device, where the second indication information is used to indicate whether the affected coding block is correctly received.
- the terminal device sends the second indication information to the radio access network device, including:
- the terminal device sends an acknowledgement bit to the radio access network device, and if at least one affected coded block is not correctly received, the terminal device goes to the The radio access network device sends an unacknowledged bit.
- the terminal device does not send, to the radio access network device, indication information that the affected coding block is correctly received.
- an embodiment of the present invention provides a data transmission method, including:
- the radio access network device sends control information and indication information of the affected coding block to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transport block Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- the radio access network device transmits at least one coding block of the at least one transport block except the affected coding block to the terminal device.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- the identification information of the affected coding block includes:
- An index of the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and sequentially a coded block before or after the first coded block; or
- An index of the first coding block group, the affected coding block includes coding blocks that are sequentially before or after the first coding block group, or the affected coding block includes the first coding block group and sequence A coded block preceding or following the first set of coding blocks.
- the identifier information of the resource corresponding to the affected coding block includes:
- An index of a resource corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and a sequence a coded block preceding or following the first coded block; or
- An index of a resource group corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block group, or the affected coding block includes the first coding block A group and a coded block in sequence before or after the first group of coded blocks.
- the control information carries indication information of the affected coding block; if the at least one transport block is a HARQ initial transmission And transmitting, by the control information, the indication information of the affected coding block.
- the at least one transport block is a transport block of HARQ retransmission
- the indication information of the affected coding block is carried in a modulation coding indication field in the control information.
- the method further includes:
- first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block. And a coding block other than the affected coding block, where the first indication information includes a smaller number of bits than the second coding block.
- an embodiment of the present invention provides a terminal device, including:
- a receiving unit configured to receive control information sent by the radio access network device and indication information of the affected coding block, The control information is used by the radio access network device to schedule at least one transport block of the terminal device, and each of the at least one transport block includes at least one coding block, where the affected coding block is At least one of the at least one transport block; receiving the at least one transport block according to the control information;
- a processing unit configured to determine, by the terminal device, the affected coding block according to the indication information of the affected coding block, and determine first indication information, where the first indication information indicates whether the second coding block is correctly Receiving, the second coding block is a coding block of the at least one coding block except the affected coding block, and the first indication information includes a number of bits less than the number of the second coding blocks;
- a sending unit configured to send the first indication information to the radio access network device.
- the number of bits of the first indication information is one, and the processing unit is configured to determine whether the second coding block is all correctly received, if the second coding block is all correctly received, Then, the first indication information is an acknowledgement bit, and if the at least one second coding block is not correctly received, the first indication information is an unacknowledged bit.
- the processing unit is further configured to determine second indication information, where the second indication information is used to indicate whether the affected coding block is correctly received, and the sending unit is further configured to The wireless access network device sends the second indication information.
- the number of bits of the second indication information is one, and the processing unit is configured to confirm whether the affected coding block is all correctly received, and if the affected coding blocks are all correctly received, Then, the second indication information is an acknowledgement bit, and if the at least one affected coding block is not correctly received, the second indication information is an unacknowledged bit.
- the terminal device does not send indication information to the radio access network device whether the affected coding block is correctly received.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- an embodiment of the present invention provides a radio access network device, including:
- a sending unit configured to send control information and indication information of the affected coding block to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transport block Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block; transmitting at least one of the at least one transport block to the terminal device except the affected coded block At least one coding block other than;
- a receiving unit configured to receive first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block A coding block other than the affected coding block, the first indication information includes fewer bits than the second coding block.
- the number of bits of the first indication information is one.
- the receiving unit is further configured to receive second indication information sent by the terminal device, where the second indication information indicates whether the affected coding block is correctly received, and the second indication information includes The number of bits is less than the number of affected code blocks.
- the number of bits of the second indication information is one.
- the radio access network device does not receive the second indication information, and the second indication information The information is used to indicate whether the affected coded block is correctly received.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- an embodiment of the present invention provides a data transmission method, including:
- control information sent by the radio access network device and indication information of the affected coding block where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transmission Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- the terminal device Transmitting, by the terminal device, the first indication information to the radio access network device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block
- the first indication information includes fewer bits than the second coding block.
- the number of the first indication information is one, and the terminal device sends the first indication information to the radio access network device, including:
- the terminal device sends an acknowledgement bit to the radio access network device, and if at least one second coding block is not correctly received, the terminal device is The radio access network device sends an unacknowledged bit.
- the method further includes:
- the terminal device sends second indication information to the radio access network device, where the second indication information is used to indicate whether the affected coding block is correctly received.
- the number of bits of the second indication information is one, and the terminal device sends the second indication information to the radio access network device, including:
- the terminal device sends an acknowledgement bit to the radio access network device, and if at least one affected coded block is not correctly received, the terminal device goes to the The radio access network device sends an unacknowledged bit.
- the terminal device does not send indication information to the radio access network device whether the affected coding block is correctly received.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- the identifier information of the affected coding block includes:
- An index of the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and sequentially a coded block before or after the first coded block; or
- An index of the first coding block group, the affected coding block includes coding blocks that are sequentially before or after the first coding block group, or the affected coding block includes the first coding block group and sequence In the first series A coded block before or after a code block group.
- the identifier information of the resource corresponding to the affected coding block includes:
- An index of a resource corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and a sequence a coded block preceding or following the first coded block; or
- An index of a resource group corresponding to the first coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block group, or the affected coding block includes the first coding block A group and a coded block in sequence before or after the first group of coded blocks.
- the control information carries indication information of the affected coding block; if the at least one transport block is a transport block of a HARQ initial transmission, The indication information of the affected coding block is not carried in the control information.
- the at least one transport block is a transport block of the HARQ retransmission
- the indication information of the affected coding block is carried in a modulation and coding indication field in the control information.
- the receiving, by the terminal device, the at least one transport block according to the control information and the determined affected coding block including:
- the terminal device does not perform HARQ merging on the data corresponding to the affected coded block.
- the method further includes:
- the terminal device receives the affected coded block sent by the radio access network device and the coded block that is not correctly received in the second coded block.
- an embodiment of the present invention provides a data transmission method, including:
- the radio access network device sends control information and indication information of the affected coding block to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transport block Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block. And a coding block other than the affected coding block, where the first indication information includes a smaller number of bits than the second coding block.
- the number of bits of the first indication information is one.
- the method further includes:
- Second indication information that is sent by the terminal device, where the second indication information indicates whether the affected coding block is correctly received, and the second indication information includes less bits than the received Affects the number of coded blocks.
- the number of bits of the second indication information is one.
- the method further includes:
- the radio access network device does not receive the second indication information, where the second indication information is used to indicate whether the affected coding block is correctly received.
- the indication information of the affected coding block includes: identification information of the affected coding block or identification information of a resource corresponding to the affected coding block.
- an embodiment of the present invention provides a communication system, where the system includes the radio access network device and the terminal device in the foregoing aspect.
- an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the wireless access network device, including a program designed to perform the above aspects.
- an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the terminal device, including a program designed to perform the above aspects.
- the solution provided by the invention can improve the efficiency of data transmission in a scenario of short interference with short duration.
- This embodiment guarantees the low latency requirement of the URLLC burst service, and at the same time solves the efficient and flexible multiplexing between the URLCC and the eMBB service.
- FIG. 1 is a schematic diagram of a possible application scenario of the present invention
- FIG. 2 is a schematic flowchart diagram of an embodiment of a data transmission method provided by the present invention.
- FIG. 3 is a schematic diagram of an indication method of an affected coding block
- FIG. 4 is a schematic diagram of another indication method of an affected coding block
- FIG. 5 is a schematic flowchart diagram of another embodiment of a data transmission method according to the present invention.
- FIG. 6 is a schematic flowchart diagram of another embodiment of a data transmission method according to the present invention.
- FIG. 7 is a schematic structural diagram of an embodiment of a terminal device according to the present invention.
- FIG. 8 is a schematic structural diagram of another embodiment of a terminal device according to the present invention.
- FIG. 9 is a schematic structural diagram of an embodiment of a radio access network device according to the present invention.
- FIG. 10 is a schematic structural diagram of another embodiment of a radio access network device according to the present invention.
- FIG. 11 is a schematic flowchart diagram of another embodiment of a data transmission method according to the present invention.
- FIG. 12 is a schematic structural diagram of another embodiment of a terminal device according to the present invention.
- FIG. 13 is a schematic structural diagram of another embodiment of a terminal device according to the present invention.
- FIG. 14 is a schematic structural diagram of another embodiment of a radio access network device according to the present invention.
- FIG. 15 is a schematic structural diagram of another embodiment of a radio access network device according to the present invention.
- 16 is a schematic flowchart diagram of another embodiment of a data transmission method according to the present invention.
- FIG. 17 is a schematic flowchart diagram of another embodiment of a data transmission method provided by the present invention.
- FIG. 1 shows a communication system 100 to which an embodiment of the present invention is applied.
- the communication system 100 can include at least one radio access network device 110 and a plurality of terminal devices 120 located within the coverage of the radio access network device 110.
- FIG. 1 exemplarily shows one radio access network device and two terminal devices.
- the communication system 100 may include multiple radio access network devices and each radio access network device may have coverage within This embodiment of the present invention does not limit the number of other terminal devices.
- the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like, and the embodiment of the present invention is not limited thereto.
- network entities such as a network controller, a mobility management entity, and the like, and the embodiment of the present invention is not limited thereto.
- the communication system used in the embodiments of the present invention may be a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, or a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access).
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- Wideband Code Division Multiple Access Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division duplex
- UMTS Universal Mobile Telecommunication System
- OFDM orthogonal frequency division
- the radio access network device involved in the embodiment of the present invention may be used to provide a wireless communication function for the terminal device.
- the radio access network device may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, and the like.
- the radio access network device may be a base station (Base T access network station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, or an evolved base station in LTE ( The Evolutional Node B, eNB or e-NodeB), and may be the corresponding device gNB in the 5G network.
- BTS Base T access network station
- NodeB, NB base station
- LTE The Evolutional Node B, eNB or e-NodeB
- the foregoing apparatus for providing a wireless communication function for a terminal device is collectively referred to as a radio access network device.
- the terminal device may also be referred to as a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), etc., and the terminal device may be wirelessly accessed.
- the Radio Access Network (RAN) communicates with one or more core networks, for example,
- the end device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the terminal device may also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device, which is wireless
- the access network exchanges languages and/or data.
- the embodiment of the invention is not specifically limited.
- the data scheduling and corresponding HARQ feedback and possible HARQ retransmissions in the current wireless system are all in units of transport blocks TB.
- one PDSCH that the eNB schedules for the UE generally includes one TB or two TBs.
- the PDSCH includes a codeword, such as non-MIMO scheduling at this time, it corresponds to one TB; if the PDSCH includes two codewords, such as MIMO scheduling at this time, respectively, corresponding to two TBs.
- this paper takes a TB corresponding to a single codeword scheduling as an example, and the case of multiple codewords can be processed separately for a single codeword case.
- the UE If the UE correctly receives the TB in the PDSCH, the UE feeds back the ACK on the uplink, and vice versa. If the base station receives the NACK fed back by the UE, it will retransmit the TB that is not correctly received by the UE. Scheduling.
- a TB can be divided into multiple code blocks CB for channel coding.
- the maximum number of bits of the maximum CB is 6144. That is, if the number of bits of a TB exceeds 6144, the TB needs to be split into multiple CBs respectively.
- the maximum number of bits of the largest CB is used. For about 2000, it can support splitting into more CBs for parallel encoding and decoding.
- each CB has an independent check function. For example, in the case of a Turbo code, each CB adds a CB CRC before encoding, so that the UE performs a CRC check after decoding each CB.
- each CB can also add a CB CRC, or the LDPC coding matrix itself has a verification function, that is, each CB of the LDPC can also have a verification function.
- the coded modulation symbols are mapped in the order of the first frequency domain and the time domain in the physical resource mapping, and the inter-CB interleaving is not performed, that is, the mapping is performed in the order of CB.
- the advantage of this is that the UE can start decoding after buffering to a CB, and does not have to wait until all CBs in the PDSCH are buffered before starting decoding.
- the URLLC may only be for the PDSCH of the eMBB.
- a small amount of CB time-frequency resource locations are punctured, such as puncturing 1 or 2 CB time-frequency resource locations.
- the URLLC punctured the PDSCH of the eMBB to ensure its short delay requirement, and only affects a small number of CBs in multiple CBs in the TB of the eMBB, assuming that the TB of the PDSCH of the eMBB has 30 CBs, where there are only 1 or 2 CBs that are not correctly received by the UE due to being punctured by the URLLC.
- the TB CRC of the entire TB cannot be verified, that is, the UE still considers that the TB is not correctly received, and then feeds back the NACK to the base station.
- the base station After receiving the NACK, the base station can only consider that the entire TB is not correctly received by the UE. Although most of the CBs have been correctly received, the base station subsequently performs retransmission scheduling on the entire TB of the UE. Even if the entire TB is retransmitted, the UE cannot correctly receive the TB by means of HARQ combining, because the UE cannot know which CB is punctured by the URLLC during the last transmission, so the UE feeds back the NACK while storing the UE's own HARQ buffer. The possibility is that the URLLC service is not its own CB. Therefore, the HARQ merge with the retransmitted CB can not only obtain the HARQ merge gain, but cause the CB to fail to receive again, and eventually it will trigger the RLC layer retransmission. System efficiency has dropped dramatically.
- one prior art adopts HARQ feedback and retransmission based on CB. Specifically, the UE performs HARQ feedback on whether each CB in the entire TB is correctly received by the UE, and the base station retransmits the CB that is not correctly received by the UE or uses the initial transmission of HARQ to retransmit some of the UEs that are not correctly received by the UE. CB.
- the base station After adopting the CB-based HARQ, the base station knows which CBs in the TB are not correctly received by the UE, including the CB punctured by the URLLC, and may also include other reasons such as channel fading but not due to channel fading. CB that is not correctly received by the UE. For the CB punctured by the URLLC, the base station will directly perform the initial transmission scheduling to solve the problem that the HARQ buffer of the UE is contaminated by the URLLC and cannot receive the retransmission packet through HARQ merging; for the puncturing without the URLLC but due to channel fading, etc. For other reasons, the CB that is not correctly received by the UE, the base station can perform retransmission scheduling normally, and the UE can perform HARQ combining normally to improve the probability of correct reception.
- the transmission of traffic in the LTE Continuous Evolution System or the NR system is also based on base station scheduling.
- the normal data transmission process performs CRC addition and encoding to form a codeword for the original data bits; the codeword forms a modulation symbol by scrambling and constellation modulation; and maps the modulation symbols to time, frequency and space resources, where the spatial resources are relatively more used than The transmission method of the antenna.
- transform to the time domain and send this is the entire baseband data transmission process.
- the radio access network device in order to solve the problem of HARQ buffer pollution caused by HARQ combining, notifies the terminal device of the indication information of the affected coding block, and the terminal device determines that the CB is not correctly received, and the usage is heavy for the CB.
- the transmitted data packet is used for data recovery.
- the base station When the base station performs initial transmission or retransmission scheduling on the eMBB UE, it notifies the eMBB UE which CB is punctured by the transmission of the URLLC during the last transmission (initial transmission or last retransmission) of the current TB; the UE acquires the hit After the hole information, when the HARQ merge is performed on the CB that has not been correctly received before, the HARQ merge is not performed for the punched CB, and the HARQ merge can be performed as usual for the unpunctured CB.
- an embodiment of a data transmission method provided by the present invention includes:
- the radio access network device sends control information and indication information of the affected coding block to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where the at least one transmission At least one coded block is included in each transport block in the block, and the affected coded block is at least one coded block of the at least one transport block.
- the at least one transport block may be a transport block of a HARQ initial transmission or a transport block of a HARQ retransmission.
- control information can be carried in a downlink control channel.
- control information may include resource allocation information, a modulation and coding mode, and control information such as HARQ, which are used to carry the downlink data channel of the TB.
- control information may schedule one TB in one subframe, or may separately schedule multiple TBs in multiple subframes.
- subframe mentioned here is conceptually the minimum time granularity of scheduling a TB, and other names may be used in an evolved LTE system or an NR system, such as a micro subframe, a time slot, a mini slot, and the like. However, it is essentially the same.
- a subframe is taken as an example for description.
- the sending control information and the indication information of the affected coding block may be carried in the same message.
- the indication information and the transmission control information of the affected coding block are carried in a downlink control channel.
- the sending control information and the indication information of the affected coding block may also be carried in different messages, where the control information is It is carried in the downlink control channel, and the indication information of the affected coding block may be carried by an independent control channel.
- the control information if the at least one transport block is a transport block of a HARQ retransmission, the control information carries indication information of the affected coding block; if the at least one transport block is a transport block of a HARQ initial transmission The control information does not carry the indication information of the affected coding block.
- the at least one transport block is a transport block of the HARQ retransmission, and the indication information of the affected coding block is carried in a modulation and coding indication field in the control information.
- the affected coding block refers to a coding block corresponding to a resource that is rewritten or interfered by other transmission information in the occupied resource when the transmission block is transmitted, and may be affected as follows (but is not limited to the following limited the way):
- the radio access network device transmits the resources of the affected coding block in the TB by other service data (such as URLLC) (also referred to as rewriting), that is, the radio access network device does not on the resources of the affected coding block. Transmitting the information of the affected code block that should be originally sent, but transmitting the information of the other service data on the resource;
- other service data such as URLLC
- the information of the resource transmission of the affected coding block in the TB of the radio access network device is interfered by other service data (such as URLLC), that is, the superimposed transmission, specifically, the transmission information of the TB is sent as usual on the resource, and The information of the other service data described above is also sent on the same resource.
- other service data such as URLLC
- S202 The terminal device determines the affected coding block according to the indication information of the affected coding block.
- the terminal device receives the control information sent by the radio access network device and the indication information of the affected coding block, and the terminal device determines the affected coding block according to the indication information.
- the terminal device After receiving the indication information of the affected coding block, the terminal device parses the affected coding block according to the resource amount occupied by the at least one transport block or the number of coding blocks included in the at least one transport block. Instructions. Optionally, the resolution granularity of the indication information of the affected coding block may be determined according to the resource amount occupied by the at least one transport block or the number of coding blocks included in the at least one transport block.
- the radio access network device sends, to the terminal device, at least one coding block in the at least one transport block except the affected coding block.
- the affected coding block may be punctured or interfered. If it is punctured, part or all of the mapped CB-coded and constellation-modulated mapping resources may be used by the radio access network device for transmission. Other emergency services, that is, the radio access network device may not transmit the information of the affected CB after coding and constellation modulation on the part or all resources; if it is interference, the mapping resources of the affected CB after coding and constellation modulation The radio access network device still transmits the information of the affected CB after coding and constellation modulation as usual, but may also superimpose and transmit other emergency on the part or all of the mapped CB after the encoding and constellation modulation. business.
- the terminal device receives the at least one transport block according to the control information and the determined affected coding block.
- the terminal device if the at least one transport block is a transport block of a HARQ retransmission, the terminal device does not perform HARQ merging on the data corresponding to the affected coded block.
- the terminal device does not store the corresponding corresponding to the affected coding block in the HARQ buffer. Number according to.
- the indication information of the affected coding block may be an explicit indication or a recessive indication, or may be a direct indication or an indirect indication.
- the indication information of the affected coding block may contain a variety of information.
- the indication information of the affected coding block includes: identification information of the affected coding block.
- the identification information of the affected coding block may include: 1) an index of the affected coding block; or 2) a group index of the affected coding block; or 3) an index of the first coding block, where the Attenuating a coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and an encoding that is sequentially before or after the first coding block a block; or 4) an index of a first coded block group, the affected coded block comprising coded blocks preceding or following the first set of coded block groups, or the affected coded block comprising the first block A coded block group and coded blocks that are sequentially preceding or following the first set of coded blocks.
- the above first coding block can also be understood as a reference coding block.
- the indication information of the affected coding block includes: identifier information of the resource corresponding to the affected coding block.
- the identifier information of the resource corresponding to the affected coding block may include: 1) an index of the resource corresponding to the affected coding block; or 2) a group index of the resource corresponding to the affected coding block; or 3) An index of a resource corresponding to the coding block, the affected coding block includes a coding block that is sequentially before or after the first coding block, or the affected coding block includes the first coding block and the sequence a coding block before or after the first coding block; or 4) an index of a resource group corresponding to the first coding block, the affected coding block including coding sequentially before or after the first coding block group
- the block, or the affected coded block includes the first set of coded blocks and coded blocks that are sequentially preceding or following the first set of coded blocks.
- the resource corresponding to the first coding block may also be understood as a resource corresponding to the reference coding block.
- the resource corresponding to the affected coding block may be the resource occupied by the affected CB when the transport block is currently transmitted, or may be the last transmission of the transport block relative to the current transmission (here The last transmission may be the HARQ initial transmission of the transport block, or may be the resource occupied by the affected CB of the last HARQ retransmission of the transport block.
- the order in this embodiment may be time, frequency or a logical order.
- the chronological order it may be referred to that the plurality of coding blocks included in the transport block adopt the order of the first frequency and the time in the resource mapping, so that the resources of the multiple coding blocks are mapped in time order, such as the time domain symbol 1 and 2 mapping coding block 1, mapping time domain symbols 3 and 4 on coding block 2, etc.
- the above-mentioned first frequency post-time mapping manner is only an example, and other mapping methods can reflect multiple coding blocks.
- the scheme of mapping resources according to chronological order is not excluded; for the frequency order, it may be referred to that the plurality of coding blocks included in the transport block adopt the order of the time-first frequency after resource mapping, so that the resources of the multiple coding blocks are Mapping in the order of frequency, such as mapping code block 1 on frequency domain subcarriers 1 to 12, coding block 2 on frequency domain subcarriers 13 and 24, etc., similarly, the above-mentioned time after frequency
- the mapping method is only an example. Other schemes that can achieve similar frequency order are not excluded.
- For logical order it can be given multiple edits before resource mapping. Sorting logic blocks, but in the above-described logical resource mapping can disrupt sorting, i.e. physical resource mapping is performed according to a preset correspondence relationship between the logical ordering of the physical resource mapping.
- the indication information of the affected coding block may include: whether information of the affected coding block exists. For example, it is to indicate two states, one of which is unaffected, that is, it is not punctured or interfered; the other state is affected, that is, it is punctured or interfered.
- the granularity of this indication is the thickest, that is, it cannot be specifically Indicates which CBs in the TB are affected, or cannot specifically indicate which resources on the TB mapped resources are affected, but the indication mode saves signaling overhead. If the terminal device is determined to be affected, no HARQ combining is performed for all of the TBs that do not receive the correct CB, although some CBs that are correctly received are not affected by puncturing or interference.
- the indication information of the affected coding block is a 1-bit display indication or an implicit indication method of two types of scrambling modes, and other similar indication methods are not limited.
- the index of the affected coding block As an example of the index of the affected coding block, assuming that one TB includes 4 CBs, 4 bits can be used to indicate which one or which of the 4 CBs are affected, and other displays or The implicit indication is not limited.
- the group index of the affected coded block includes the group index of the affected coded block.
- one TB includes 8 CBs, that is, 4 CBGs, and 4 bits may be used to indicate which one of the 4 CBGs is specified or Which ones are affected.
- the state of the specific 4 bits is '1000', that is, the first CBG is affected.
- a TB may have a maximum of dozens of CBs, such as 64, so that the overhead indicated by 64 bits is unbearable. Therefore, an overhead method is that the indication information of the affected coding block is used to indicate the reference to the affected CB, and then the terminal device determines, by using a preset rule, other potential affected CBs associated with the reference affected CB, which need to be explained.
- the other potentially affected CBs are not necessarily the affected CBs.
- the indication information may indicate that the third CB is an affected CB, and then the terminal device is preset according to the preset.
- the rule determines that the CB behind the reference affected CB is a potentially affected CB, ie the sixth CB is also considered to be the affected CB, although the sixth CB is not actually affected.
- the second CB is an unaffected CB. Therefore, when the terminal device receives the retransmission schedule of the TB, HARQ combining is adopted for the second CB, and HARQ combining is not adopted for the third and sixth CBs.
- the affected element associated with the reference affected element includes the reference affected element and the affected element before or after the reference affected element.
- the order here may be an order in absolute time and/or an order in absolute frequency, or may be an order of logical index numbers, as shown in FIG. 4, the order of the index numbers is also understandable.
- the order of mapping for CB on time is from front to back.
- the indication information of the affected coding block may also include identification information of the resource corresponding to the affected coding block.
- the resource can be a time domain resource or a frequency domain resource.
- the transport block is finally mapped to the time-frequency resource.
- the control information is used to schedule one TB in one subframe.
- one subframe can be divided into six time segments, and the indication information of the affected coding block can be indicated.
- One or more of the time segments are affected time segments. Therefore, the terminal device can determine which CBs of the TBs mapped by the base station are affected CBs according to the affected time segments, and further determine that the HARQ merge is not performed on the affected CBs during retransmission reception.
- Other aspects are described as in the above embodiments. There are no restrictions on how to divide multiple sub-frames and other resource parts, such as the time-frequency two-dimensional division.
- the resolution granularity of the indication information of the affected coding block may be determined according to the resource amount occupied by the at least one transport block or the number of coding blocks included in the at least one transport block.
- each subframe includes one TB, and one TB includes 6 CBs, it is affected.
- the first 2 bits of the indication information of the coding block are used to indicate the analysis of the affected CB or CBG in the 1st subframe, and the last 2 bits of the indication information of the affected coding block are used to indicate the affected in the second subframe.
- the state 2' of the first 2 bits of the indication information of the affected coding block indicates that it is unaffected, and '01' indicates that the first CBG is the reference.
- Affecting CBG '10' indicates that the second CBG is the reference affected CBG
- '10' indicates that the third CBG is the reference affected CBG
- the indication method for the second subframe is similar. If the control information schedules downlink data of one subframe, 4 bits may be indicated according to the granularity of CB. Specifically, '0000' means unaffected, and '0001' to '0110' indicate 1st to 6th CB. Which is the reference affected CB.
- the state 2′ of the first 2 bits of the indication information of the affected coding block indicates that it is unaffected
- '01 ' indicates that the first time segment group is the reference affected time segment group
- '10' indicates that the second time segment group is the reference affected time segment group
- '10' indicates that the third time segment group is the reference affected time segment.
- the group, the indication method for the second subframe is similar. If the control information schedules downlink data of one subframe, 4 bits may be indicated according to the granularity of the time segment. Specifically, '0000' indicates that it is not affected, and '0001' to '0110' indicate the first to sixth. Which CB is the reference affected time segment. If a certain time segment is indicated, the terminal device can determine the CB or CBG mapped on the time segment, and thus the affected CB or CBG.
- the terminal device since the radio access network device indicates the affected coding block to the terminal device, the terminal device may not perform buffering on the affected coding block or perform HARQ merging on the data corresponding to the affected coding block by the terminal device, thereby solving the problem.
- the HARQ buffer pollution problem ensures the efficiency of data transmission in a scenario of short-term burst interference. This embodiment guarantees the low latency requirement of the URLLC burst service, and at the same time solves the efficient and flexible multiplexing between the URLCC and the eMBB service.
- the indication information of the affected coding block is carried in the control information corresponding to the transmission block of the HARQ retransmission.
- the method includes:
- the radio access network device sends, to the terminal device, control information, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where each of the at least one transport block is in the transport block. Includes at least one code block.
- the terminal device receives the control information.
- the radio access network device sends at least one transport block to the terminal device, and the terminal device receives the at least one transport block according to the control information.
- S503 The terminal device performs ACK/NACK feedback to the radio access network device.
- the terminal device performs ACK/NACK feedback to the radio access network device according to the reception condition of the transport block.
- the radio access network device When receiving the NACK feedback, the radio access network device sends retransmission control information to the terminal device, where the retransmission control information is used by the radio access network device to schedule at least one transport block of the terminal device, where At least one coding block is included in each of the at least one transport block, the retransmission control information including the affected coding block The indication information that the affected coding block is at least one coding block in the at least one transport block.
- control information the affected coding block
- indication information of the affected coding block can be referred to the related description in the foregoing embodiment.
- the terminal device receives the control information, and determines the affected coding block according to the indication information of the affected coding block in the retransmission control information.
- the radio access network device sends the retransmitted affected coding block to the terminal device, and the terminal device receives the retransmitted coding block, and uses the retransmitted coding block to perform data recovery.
- the terminal device directly uses the retransmitted code block and does not perform cache merge.
- the indication information of the affected coding block may not be included in the control information, for example, the control information is carried in a downlink control channel, and the control information is used to schedule the at least one transport block.
- the indication information of the affected coding block may be carried by an independent control channel, that is, independent of the control information and therefore also independent of the downlink control channel.
- the indication information of the affected coding block exists only in the case of the retransmission scheduling, that is, the indication of the indication information of the affected coding block is not performed for the initial transmission scheduling.
- the URLLC is likely to punct eMBB after the control information and data information of the eMBB start to be transmitted, that is, puncturing from the middle, and the base station cannot predict that the URL will be blocked in the middle when scheduling the downlink data of the eMBB. Punch the business.
- the MCS field in the control information it is preferable to multiplex the MCS field in the control information, and other indication manners are not limited, such as using new bits or scrambling codes, or multiplexing now The HARQ process number indication field other than the MCS field, and the like.
- An embodiment of the MCS field in the multiplex control information will be described below.
- Table 1 shows the parsing rules of the current MCS field. It can be seen that the current MCS field is 5 bits representing 32 states, and the state indexes 0-28 respectively represent 29 MCS levels and are used for the load index query. The three states of the MCS indexes 29 to 31 are mainly used to change the modulation order when the scheduling is retransmitted.
- the MCS index 0-28 and the time-frequency resource allocation field in the control information are combined to determine the payload size.
- the time-frequency resource occupied by the current retransmission TB has a special field in the control information, so for the retransmission scheduling, at least the MCS index 0-28 It is redundant, and the MCS indexes 29 to 31 only serve to change the modulation order during retransmission.
- the requirement for retransmission of the modulation order is small, so it can also be counted as redundancy.
- the indication information of the affected coding block includes a partial state or a full state in a modulation coding indication field in the control information, where the modulation coding indication field is in the
- the at least one transport block is used to indicate, in the initial transmission of the HARQ, the modulation and coding mode of the terminal device for the at least one transport block when the HARQ is initially transmitted.
- the indication information of the affected coding block is carried in the control information corresponding to the transmission block originally transmitted by the HARQ.
- the method includes:
- the radio access network device sends control information to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where each of the at least one transport block is in the transport block.
- the at least one coding block is included, the control information includes indication information of the affected coding block, and the affected coding block is at least one coding block of the at least one transmission block.
- control information the affected coding block
- indication information of the affected coding block can be referred to the related description in the foregoing embodiment.
- the terminal device determines the affected coding block according to the indication information of the affected coding block.
- the terminal device receives the control information and determines the affected coding block according to the indication information of the affected coding block.
- the radio access network device sends a transport block to the terminal device, and the terminal device receives the transport block, and does not cache the affected coding block in the transport block.
- the terminal device performs ACK/NACK feedback to the radio access network device.
- the terminal device performs ACK/NACK feedback to the radio access network device according to the reception condition of the transport block.
- the radio access network device When receiving the NACK feedback, the radio access network device sends retransmission control information to the terminal device, where the retransmission control information is used by the radio access network device to schedule at least one transport block of the terminal device, where At least one coded block is included in each of the at least one transport block.
- the terminal device receives the retransmission control information.
- the radio access network device sends the affected coding block to the terminal device, and the terminal device receives the affected coding block, and uses the affected coding block to perform data recovery.
- the terminal device directly uses the retransmitted CB without HARQ merging with the originally transmitted CB information.
- the indication information of the affected coding block may not be included in the control information, for example, the control information is carried in a downlink control channel, and the control information is used to schedule the at least one transport block.
- the indication information of the affected coding block may be carried by an independent control channel, that is, independent of the control information and therefore also independent of the downlink control channel.
- the information indicating the affected CB at the time of initial transmission may cause the terminal device to not cache the affected CB from the beginning, and may also be combined with other embodiments, such as feedback combined with CB level confirmation or non-confirmation information.
- the HARQ buffer pollution problem can be solved, and other embodiments can be combined to improve the HARQ retransmission efficiency.
- the present invention provides a terminal device, which can be applied to a scenario in which a short-term burst of interference occurs in a wireless system, and the terminal device can perform various steps in the foregoing method embodiments.
- the terminal device includes:
- the receiving unit 701 is configured to receive control information sent by the radio access network device and an indication message of the affected coding block. And the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where each of the at least one transport block includes at least one coded block, the affected code a block is at least one of the at least one transport block; and
- the processing unit 702 is configured to determine, according to the indication information of the affected coding block, the affected coding block, where
- the receiving unit 701 is further configured to receive the at least one transport block according to the control information and the determined affected coding block.
- control information the affected coding block
- indication information of the affected coding block may be referred to the related description in the foregoing embodiment.
- the control information carries indication information of the affected coding block; if the at least one transport block is a transport block of a HARQ initial transmission, The indication information of the affected coding block is not carried in the control information.
- the at least one transport block is a transport block of the HARQ retransmission
- the indication information of the affected coding block is carried in a modulation and coding indication field in the control information.
- the receiving unit is configured to receive the at least one transport block, and perform HARQ merging on data corresponding to the affected coded block.
- the terminal device further includes:
- the sending unit 703 is configured to send, to the radio access network device, first indication information, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block.
- the first indication information includes fewer bits than the second coded block.
- the specific content and transmission method of the first indication information may refer to related descriptions in the foregoing embodiments.
- the terminal device includes:
- the receiver 801 is configured to receive control information sent by the radio access network device and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where ???each of the at least one transport block includes at least one coded block, the affected coded block being at least one coded block of the at least one transport block; and
- the processor 802 is configured to determine, according to the indication information of the affected coding block, the affected coding block, where
- the receiver 801 is further configured to receive the at least one transport block according to the control information and the determined affected coding block.
- control information the affected coding block
- indication information of the affected coding block may be referred to the related description in the foregoing embodiment.
- the terminal device further includes:
- the transmitter 803 is configured to send, to the radio access network device, first indication information, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block.
- the first indication information comprising fewer bits than the second coding block.
- the specific content and transmission method of the first indication information may refer to related descriptions in the foregoing embodiments.
- the processor in this embodiment may perform the steps of the foregoing method embodiments, and specific implementation details may refer to the foregoing method embodiments.
- the present invention provides a radio access network device, which can be applied to a scenario in which a short-lived burst of interference occurs in a wireless system, and the radio access network device can perform the foregoing Each step in the method embodiment.
- the radio access network device includes:
- the sending unit 901 is configured to send, to the terminal device, control information and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transmission Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- the sending unit 901 is further configured to send, to the terminal device, at least one coding block in the at least one transport block except the affected coding block.
- control information the affected coding block
- indication information of the affected coding block may be referred to the related description in the foregoing embodiment.
- the radio access network device further includes: a processing unit 902, configured to determine transmission control information and indication information of the affected coding block.
- the control information carries indication information of the affected coding block; if the at least one transport block is a transport block of a HARQ initial transmission, The indication information of the affected coding block is not carried in the control information.
- the at least one transport block is a transport block of the HARQ retransmission, and the indication information of the affected coding block is carried in a modulation and coding indication field in the control information.
- the radio access network device further includes:
- the receiving unit 903 is configured to receive first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is a division of the at least one coding block.
- the coding block outside the affected coding block, the first indication information includes fewer bits than the second coding block.
- the specific content and transmission method of the first indication information may refer to related descriptions in the foregoing embodiments.
- the radio access network device includes:
- the transmitter 1001 is configured to send, to the terminal device, control information and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transmission Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block;
- the transmitter 1001 is further configured to send, to the terminal device, at least one coding block in the at least one transport block except the affected coding block.
- control information the affected coding block
- indication information of the affected coding block may be referred to the related description in the foregoing embodiment.
- the radio access network device further includes a processor 1002, configured to determine, to send control information and indication information of the affected coding block.
- the control information carries indication information of the affected coding block; if the at least one transport block is a transport block of a HARQ initial transmission, The indication information of the affected coding block is not carried in the control information.
- the at least one transport block is a transport block of the HARQ retransmission, and the indication information of the affected coding block is carried in a modulation and coding indication field in the control information.
- the radio access network device further includes:
- the receiver 1003 is configured to receive first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is a division of the at least one coding block.
- the coding block outside the affected coding block, the first indication information includes fewer bits than the second coding block.
- the specific content and transmission method of the first indication information may refer to related descriptions in the foregoing embodiments.
- the terminal device in order to solve the inefficiency problem that all TBs are retransmitted due to partial CB puncturing, the terminal device distinguishes the affected CB from other CBs, and performs ACK/NACK feedback respectively.
- another embodiment of the data transmission method of the present invention includes:
- the radio access network device sends control information and indication information of the affected coding block to the terminal device, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one ???each of the transport blocks includes at least one coded block, and the affected coded block is at least one coded block of the at least one transport block;
- the contents of the transmission block, the control information, the affected coding block, and the indication information of the affected coding block and the transmission manner are referred to the related description of the above embodiments.
- the terminal device receives the control information sent by the radio access network device and the indication information of the affected coding block.
- the radio access network device sends, to the terminal device, at least one coding block in the at least one transport block except the affected coding block.
- S1104 The terminal device determines the affected coding block according to the indication information of the affected coding block.
- step 1103 there is no strict time sequence between step 1103 and step 1104.
- the terminal device sends first indication information to the radio access network device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is in the at least one coding block.
- the first indication information includes fewer bits than the second coded block.
- the radio access network device receives the first indication information sent by the terminal device.
- the terminal device if the second coding block is all correctly received, the terminal device sends an N-bit acknowledgement information (ACK) to the radio access network device; if at least one second coding block is not If received correctly, the terminal device sends an N-bit non-acknowledgement message (NACK) to the radio access network device.
- ACK N-bit acknowledgement information
- NACK N-bit non-acknowledgement message
- the first indication information includes fewer bits than the second coded block.
- the second coding may be considered.
- the number of blocks corresponds to the acknowledgment or non-acknowledgment bit overhead, such as the use of partial coded block acknowledgment or unacknowledged information binding feedback. For example, there are 16 second coding blocks, which can be grouped with 8 coding blocks. In this case, only 2 acknowledgement or no acknowledgement bits need to be fed back.
- the number of bits of the first indication information is one, and the terminal device sends the first indication information to the radio access network device, including: if the second coding block is all correctly received, The terminal device sends an acknowledgement bit to the radio access network device, and if at least one second code block is not correctly received, the terminal device sends an unacknowledgment bit to the radio access network device.
- the terminal device performs feedback on whether the affected coding block and other coding blocks (ie, the second coding block) in one TB are correctly received.
- the terminal device may send the first indication information and the second indication information to the radio access network device, where the first indication information is used to indicate whether the second coding block is correctly received, and the second indication information is used. To indicate whether the affected code block was received correctly.
- a similar scheme may also be used for sending the second indication information, that is, the second indication information includes less bits than the affected coding block. Quantity.
- the terminal device may only send the first indication information to the radio access network device, and not send the indication information that the affected coding block is correctly received to the radio access network device. Since the probability that the affected coding block is not correctly received may be NACK by default without explicit feedback to save signaling.
- the terminal device if the affected coding block is all correctly received, the terminal device sends an N-bit acknowledgement information (ACK) to the radio access network device; if at least one affected coding block is not received If received correctly, the terminal device sends an N-bit non-acknowledgement message (NACK) to the radio access network device.
- ACK N-bit acknowledgement information
- NACK N-bit non-acknowledgement message
- the number of bits of the second indication information is one, and the terminal device sends the second indication information to the radio access network device, including: if the affected coding block is all correctly received, The terminal device sends an acknowledgement bit to the radio access network device, and if at least one affected coding block is not correctly received, the terminal device sends an unacknowledgment bit to the radio access network device.
- the method further includes: the radio access network device receives the first indication information, and according to the first indication information It is determined whether to retransmit the second coded block. Specifically, if the first indication information is an acknowledgement information (ACK), the second coded block does not need to be retransmitted; if the first indication information is a non-acknowledgement message (NACK), the second coded block is retransmitted.
- ACK acknowledgement information
- NACK non-acknowledgement message
- the method further includes: the radio access network device receiving the second indication information, and determining, according to the second indication information, whether to retransmit the affected coding block. Specifically, if the second indication information is an acknowledgment information (ACK), retransmission of the affected coding block is not required; if the second indication information is non-acknowledgement information (NACK), the affected coding block is retransmitted.
- ACK acknowledgment information
- NACK non-acknowledgement information
- the radio access network device receives the first indication information and the second indication information, and respectively confirms whether to retransmit the second coding block and the affected coding block according to the first indication information and the second indication information.
- the radio access network device only receives the first indication information, and determines whether to retransmit the affected coding block according to the first indication information.
- the radio access network device does not receive the second indication information, and does not confirm the information for the affected coding block by default and retransmits the affected coding block. Since the probability that the affected coding block is not correctly received may be NACK by default without explicit feedback to save signaling.
- the method further includes:
- the terminal device receives the at least one transport block according to the control information and the determined affected coding block.
- step S204 For a specific implementation of this step, reference may be made to the related description of step S204 in FIG. 2 above.
- the method further includes:
- the terminal device receives the affected coded block retransmitted by the radio access network device and the coded block that is not correctly received in the second coded block.
- the current ACK/NACK feedback is based on the TB, ie, as long as at least one CB in the TB is not correctly received, the UE feeds back a one-bit NACK for the TB.
- the base station cannot know which CB of the TB is not correctly received by the terminal device, especially considering that the CB that is not punctured may also be not received correctly due to the principle of channel fading or the like. Therefore, the base station can only choose to retransmit the entire TB.
- the punctured CB has a high probability that it cannot be correctly received, and unlike the previous one, which CB is not correctly received is the channel randomness. of. Therefore, the punched influence CB is differentiated from the unpunctured influence CB, and ACK/NACK feedback is performed separately.
- one TB has 8 CBs, assuming that 6 of the CBs are not punctured, denoted as CB1 to CB6, and the other 2 CBs are punctured, denoted as CB7 and CB8.
- the terminal device reports 2 bits for the TB, where 1 bit is for CB7 and CB8, and the bit is basically NACK because it is basically not received correctly; and if both CB1 and CB6 are received correctly, Then, 1 bit is fed back as an ACK, and if at least one CB of CB1 to CB6 is not correctly received, 1 bit of NACK is fed back.
- the terminal device may not perform ACK/NACK feedback for the affected CB, but only feeds back to other CBs, that is, does not perform ACK/NACK feedback for CB7 and CB8, because it is basically not correctly received; Only one bit of ACK/NACK feedback is required for CB1 to CB6.
- the method embodiments corresponding to the above FIGS. 2, 5, and 6 and the method embodiments corresponding to FIG. 11 may be combined with each other.
- the method embodiment corresponding to FIG. 2, FIG. 5, and FIG. 6 may further include the step S1108: the terminal device sends the first indication information to the radio access network device, where the first indication information indicates whether the second coding block is Be Correctly receiving, the second coding block is a coding block other than the affected coding block in the at least one coding block, and the first indication information includes fewer bits than the second coding block .
- step S1109 the terminal device may separately send the first indication information and the second indication information to the radio access network device, where the first indication information is used to indicate the first Whether the second coding block is correctly received, the second indication information is used to indicate whether the affected coding block is correctly received.
- step S1108 and step S1109 reference may be made to the related description of step S1105 in FIG. 11 above.
- the method embodiment corresponding to FIG. 11 may further include step S1106: the terminal device receives the at least one transport block according to the control information and the determined affected coding block.
- the present invention provides a terminal device, which can be applied to a scenario in which a short-term burst of interference occurs in a wireless system, and the terminal device can perform various steps in the foregoing method embodiments.
- the terminal device includes:
- the receiving unit 1201 is configured to receive control information sent by the radio access network device and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where ???each of the at least one transport block includes at least one coded block, the affected coded block is at least one coded block of the at least one transport block; and the at least one transport block is received according to the control information ;
- the processing unit 1202 is configured to determine, by the terminal device, the affected coding block according to the indication information of the affected coding block, and determine first indication information, where the first indication information indicates whether the second coding block is Correctly receiving, the second coding block is a coding block other than the affected coding block in the at least one coding block, and the first indication information includes fewer bits than the second coding block ;
- the sending unit 1203 is configured to send the first indication information to the radio access network device.
- control information the affected coding block
- indication information of the affected coding block may be referred to the related description in the foregoing embodiment.
- the processing unit is further configured to determine second indication information, where the second indication information is used to indicate whether the affected coding block is correctly received, and the sending unit is further configured to use the radio access network.
- the device sends the second indication information.
- the specific content and the transmission method of the first indication information and the second indication information may refer to related descriptions in the foregoing embodiments.
- the terminal device does not send, to the radio access network device, indication information that the affected coding block is correctly received.
- the indication information of the affected coding block includes: identifier information of the affected coding block or identifier information of a resource corresponding to the affected coding block.
- the terminal device includes:
- the receiver 1301 is configured to receive control information sent by the radio access network device and an indication message of the affected coding block. And the control information is used by the radio access network device to schedule at least one transport block of the terminal device, where each of the at least one transport block includes at least one coded block, the affected code The block is at least one of the at least one transport block; the at least one transport block is received according to the control information;
- the processor 1302 is configured to determine, by the terminal device, the affected coding block according to the indication information of the affected coding block, and determine first indication information, where the first indication information indicates whether the second coding block is Correctly receiving, the second coding block is a coding block other than the affected coding block in the at least one coding block, and the first indication information includes fewer bits than the second coding block ;
- the transmitter 1303 is configured to send the first indication information to the radio access network device.
- control information the affected coding block
- indication information of the affected coding block may be referred to the related description in the foregoing embodiment.
- the processor is further configured to determine second indication information, where the second indication information is used to indicate whether the affected coding block is correctly received, and the sending unit is further configured to use the radio access network.
- the device sends the second indication information.
- the specific content and the transmission method of the first indication information and the second indication information may refer to related descriptions in the foregoing embodiments.
- the terminal device does not send, to the radio access network device, indication information that the affected coding block is correctly received.
- the indication information of the affected coding block includes: identifier information of the affected coding block or identifier information of a resource corresponding to the affected coding block.
- the present invention provides a radio access network device, which can be applied to a scenario in which a short-lived burst of interference occurs in a wireless system, and the radio access network device can perform the foregoing Each step in the method embodiment.
- the radio access network device includes:
- the sending unit 1401 is configured to send, to the terminal device, control information and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transmission Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block; transmitting at least one of the at least one transport block to the terminal device in addition to the affected code At least one coded block outside the block;
- the receiving unit 1402 is configured to receive first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is a division of the at least one coding block.
- the coding block outside the affected coding block, the first indication information includes fewer bits than the second coding block.
- the radio access network device further includes: a processing unit 1403, configured to determine transmission control information and indication information of the affected coding block.
- the receiving unit is further configured to receive second indication information that is sent by the terminal device, where the second indication information indicates whether the affected coding block is correctly received, and the second indication information includes less than the number of bits. The number of affected coding blocks.
- the radio access network device does not receive the second indication information, where the second indication information is used to indicate whether the affected coding block is correctly received.
- control information the affected coding block
- indication information of the affected coding block can be referred to the related description in the foregoing embodiment.
- the specific content and transmission method of the first indication information and the second indication information may refer to related descriptions in the foregoing embodiments.
- the radio access network device includes:
- the transmitter 1501 is configured to send, to the terminal device, control information and indication information of the affected coding block, where the control information is used by the radio access network device to schedule at least one transport block of the terminal device, the at least one transmission Included in each of the transport blocks is at least one coded block, the affected coded block being at least one coded block of the at least one transport block; transmitting at least one of the at least one transport block to the terminal device in addition to the affected code At least one coded block outside the block;
- the receiver 1502 is configured to receive first indication information that is sent by the terminal device, where the first indication information indicates whether the second coding block is correctly received, and the second coding block is a division of the at least one coding block.
- the coding block outside the affected coding block, the first indication information includes fewer bits than the second coding block.
- the radio access network device further includes: a processor 1503, configured to determine, to send control information and indication information of the affected coding block.
- the receiver is further configured to receive second indication information that is sent by the terminal device, where the second indication information indicates whether the affected coding block is correctly received, and the second indication information includes less than the number of bits. The number of affected coding blocks.
- the radio access network device does not receive the second indication information, where the second indication information is used to indicate whether the affected coding block is correctly received.
- control information the affected coding block
- indication information of the affected coding block can be referred to the related description in the foregoing embodiment.
- the specific content and transmission method of the first indication information and the second indication information may refer to related descriptions in the foregoing embodiments.
- an embodiment of a data transmission method provided by the present invention may be used in a radio access network device, and the method includes:
- the radio access network device sends a transport block to the terminal device, where the transport block includes at least two coding blocks;
- the specific content of the transport block and the coding block can be referred to the related description in the foregoing embodiment.
- the radio access network device receives the unacknowledgment information sent by the terminal device for the transport block, where the unconfirmed information is used to indicate that the terminal device does not correctly receive the transport block.
- the terminal device fails to correctly receive all the coding blocks in the foregoing transport block, the terminal device feeds back one unacknowledged bit to the radio access network device for the transport block, which may be based on the existing LTE system. Feedback at the transport block level for acknowledgment or non-acknowledgment information, rather than feedback based on acknowledgment or unacknowledged information at the block level.
- the partially coded block in the transport block may be punctured by other emergency services or subjected to burst interference, which may result in the terminal device being unable to correctly receive the partially coded block.
- the partial coding block may include the affected coding block described in the foregoing embodiment, and the related content may refer to the related description in the foregoing embodiment.
- the radio access network device sends a partial coded block in the transport block to the terminal device.
- the partially coded block in the transport block sent by the radio access network device to the terminal device in step S1601 is subjected to burst interference or even punctured by the emergency service, so the part of the coded block has a great probability that cannot be used by the terminal.
- the device is receiving correctly. While other unaffected code blocks may be received incorrectly due to poor channel conditions, the probability of this event occurring is generally not very large.
- the radio access network device may send the partial coding block in the transport block to the terminal device without retransmission
- the coding block other than the partial coding block in the transport block that is, the radio access network device temporarily assumes that the other coding block has been correctly received by the terminal device.
- the radio access network device receives the acknowledgement or non-acknowledgment information sent by the terminal device for the transport block, where the acknowledgement information is used to indicate that the terminal device has correctly received all the codes in the transport block. Piece.
- the radio access network device even if the radio access network device only retransmits the partial coding block in the transport block in step S1603, the radio access network device receives and the terminal device sends the acknowledgement or non-confirmation information for all the codes in the entire transport block.
- the main reason for the block is that the radio access network device has not been able to determine whether the terminal device has correctly received the coding block other than the partial coding block in the transport block by the terminal device. Specifically, the following situations are included:
- the terminal device If the terminal device still cannot correctly receive the partially coded block retransmitted by the radio access network device, the terminal device feeds back the unacknowledged information to the radio access network device;
- the terminal device If the terminal device correctly receives the partially coded block retransmitted by the radio access network device, and if the terminal device has also correctly received the radio access network device in the transport block sent in the above step S1601, except for the partial coded block The other coding block, the terminal device will feed back the confirmation information to the radio access network device;
- the terminal device If the terminal device correctly receives the partially coded block retransmitted by the radio access network device, but if the terminal device does not correctly receive the radio access network device, the transport block sent in the above step S1601 except the part of the coded block At least one of the coding blocks, the terminal device will feed back the unacknowledged information to the radio access network device.
- the above-mentioned embodiments provided by the present invention are based on the assumption that The impact of the CB is very large, and the probability that the unaffected CB is incorrectly received is not high.
- the retransmission of the partially coded block is used to solve the retransmission efficiency and the overhead of the uplink feedback.
- the radio access network device sends the HARQ process ID used when the transport block is sent to the terminal device, and the radio access network device sends the HARQ process number to the terminal device.
- the HARQ process number used in the partial coding block in the transport block is the same.
- the HARQ process number is the same as the HARQ process number used when transmitting the entire transport block in step S1601.
- the HARQ process ID may be displayed in the control information for scheduling the foregoing transport block or the partially coded block; or may be implicitly determined by the radio access network device and the terminal device, for example, the HARQ process ID may correspond to the resource.
- the resource may include at least one of a time resource, a frequency resource, and a space resource.
- the specific method for determining the HARQ process ID is not limited, as long as the HARQ process number used in each of the above two steps is the same, that is, the radio access network device and the terminal device need to be consistent, and the two steps are considered to be the same.
- the process number so that the correspondence between the transport block and the feedback information is consistent.
- the radio access network device sends first scheduling information to the terminal device, where the first scheduling information is used to indicate, to the terminal device, the transmission of the partially coded block.
- Information, the transmission information of the partial coding block includes whether it is a partial coding block transmission and/or an index of the partial coding block.
- the radio access network device retransmits the partial coding block to the terminal device, which is different from the HARQ retransmission mechanism in the existing LTE system, and therefore needs to notify the terminal device to partially transmit the transmission information of the block. Specifically, it may include whether the current HARQ retransmission is a partial coded block transmission and/or an index of the partially coded block.
- the transmission information of the partially coded block includes whether it is a partial coded block transmission, it is required to indicate whether the current HARQ retransmission of the terminal device is a partial coded block transmission or a retransmission of the entire transmission block of the legacy LTE, and the first scheduling information may be carried in the step.
- the scheduling part in S1603 is encoded in the control information of the block.
- the terminal device is instructed to be a retransmission transmission of the partially coded block, it is also necessary to indicate to the terminal device which specific coding blocks are the above-mentioned partial coding blocks, such as the coding block index of the partial coding block or the index of the coding block group.
- the method for indicating the specific first scheduling information is not limited.
- the display bit indication in the control information may be used, for example, by using newly added bits or multiplexing existing bits (such as all or part of the MCS field), or Instructing different scrambling manners of the control information may also be implicitly indicated according to a resource location of the transmission control channel and/or the data channel, where the data channel is a channel carrying the transport block or a partially coded block, or the above display and The implicit method is combined to indicate.
- the transmission information of the partially coded block includes the coded block as the above-mentioned partial coded block, such as the coded block index of the partial coded block or the index of the coded block group, the above-mentioned whether or not the partial coded block is transmitted may or may not be included.
- the manner of indicating the specific first scheduling information is not limited, and reference may be made to the description in the foregoing embodiment.
- the radio access network device Before the radio access network device receives the unacknowledged information for the transport block sent by the terminal device, the radio access network device sends the second scheduling information to the terminal device, where the second scheduling The information is used to indicate the index of the partially coded block to the terminal device; the second scheduling information is the control information of the scheduled transport block in step S1601 mentioned above, and the specific indication method is as described above, and is not Let me repeat.
- the radio access network device after receiving, by the terminal device, the unacknowledgment information for the transport block, includes: the radio access network device sends third scheduling information to the terminal device, where The third scheduling information is used to indicate to the terminal device whether the information is transmitted by the partially encoded block.
- the third scheduling information is the control information of the scheduling part coding block in step S1603 mentioned above.
- an embodiment of a data transmission method provided by the present invention may be used for a terminal device, and the method includes:
- the terminal device receives a transport block sent by the radio access network device, where the transport block includes at least two coding blocks.
- the terminal device sends, to the radio access network device, unacknowledgment information for the transport block, where the unconfirmed information is used to indicate that the terminal device does not correctly receive the transport block.
- the terminal device receives a partial coded block in a transport block sent by the radio access network device.
- the terminal device sends acknowledgment or no acknowledgment information for the transport block to the radio access network device, where the acknowledgment information is used to indicate that the terminal device has correctly received all code blocks in the transport block. .
- the HARQ process ID used by the terminal device to receive the transport block is the same as the HARQ process ID used by the terminal device to receive a partial coded block in the transport block.
- the terminal device receives the first scheduling information, where the terminal device determines, according to the first scheduling information, transmission information of the partially coded block, and the transmission information of the partial coded block. Included whether it is a partial coded block transfer and/or an index of the partially coded block.
- the method includes: the terminal device receives second scheduling information, where the terminal device determines, according to the second scheduling information, The index of the partially encoded block;
- the method includes: the terminal device receives third scheduling information, and the terminal device determines, according to the third scheduling information, whether Partially encoded information transmitted by the block.
- the present invention provides an embodiment of a terminal device and a radio access network device, where the terminal device and the radio access network device can respectively perform the steps in the foregoing method embodiments.
- a sending module configured to send, by the radio access network device, a transport block to the terminal device, where the transport block includes at least two Code block
- a receiving module configured to receive, by the radio access network device, non-acknowledgment information sent by the terminal device for the transport block, where the unconfirmed information is used to indicate that the terminal device does not correctly receive the transport block;
- the sending module is further configured to send, by the radio access network device, a partially coded block in the transport block to the terminal device;
- the receiving module is further configured to receive, by the radio access network device, acknowledgment or non-confirmation information sent by the terminal device for the transport block, where the acknowledgment information is used to indicate that the terminal device has correctly received the All coded blocks in the transport block.
- the HARQ process number used by the radio access network device to send the transport block to the terminal device optionally, the radio access network device sends the HARQ process number to the terminal device
- the HARQ process numbers used in the partial coding blocks in the transport block are the same.
- the radio access network device sends the first scheduling information to the terminal device, where the first scheduling information is used to indicate the part of the coding block to the terminal device.
- Transmitting information, the transmission information of the partial coded block includes whether it is a partial coded block transmission and/or an index of the partial coded block.
- the radio access network device Before the radio access network device receives the unacknowledged information for the transport block sent by the terminal device, the radio access network device sends the second scheduling information to the terminal device, where the second scheduling Information for indicating to the terminal device an index of the partially coded block;
- the radio access network device After receiving the unacknowledgment information for the transport block sent by the terminal device, the radio access network device includes: the radio access network device sends third scheduling information to the terminal device, where the third scheduling The information is used to indicate to the terminal device whether information transmitted for the partially encoded block.
- a terminal device provided by the present invention includes:
- a receiving module configured to receive, by the terminal device, a transport block sent by the radio access network device, where the transport block includes at least two coding blocks;
- a sending module configured to send, by the terminal device, unacknowledgment information for the transport block to the radio access network device, where the unconfirmed information is used to indicate that the terminal device does not correctly receive the transport block;
- the receiving module is further configured to receive, by the terminal device, a partial coded block in a transport block sent by the radio access network device;
- the sending module is further configured to send, by the terminal device, acknowledgment or non-confirmation information for the transport block to the radio access network device, where the acknowledgment information is used to indicate that the terminal device has correctly received the transmission All coded blocks in the block.
- the HARQ process ID used by the terminal device to receive the transport block is the same as the HARQ process ID used by the terminal device to receive a partial coded block in the transport block.
- the terminal device is configured to receive the first scheduling information, where the terminal device determines, according to the first scheduling information, transmission information of the partially coded block, where the transmission information of the partial coding block includes The index of the partially encoded block and/or the partially encoded block.
- the method includes: the terminal device receives second scheduling information, where the terminal device determines, according to the second scheduling information, The index of the partially encoded block;
- the method includes: the terminal device receives third scheduling information, and the terminal device determines, according to the third scheduling information, whether Partially encoded information transmitted by the block.
- the receiving module and the sending module in the foregoing embodiments may be a receiver and a transmitter respectively in hardware, or both may be integrated into a transceiver.
- the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
- the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
- Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
- a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.
Abstract
Description
Claims (90)
- 一种终端设备,其特征在于,包括:接收单元,用于接收无线接入网设备发送的控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;和处理单元,用于根据所述受影响编码块的指示信息确定所述受影响编码块;其中,所述接收单元,还用于根据所述控制信息以及确定的所述受影响编码块接收所述至少一个传输块。
- 如权利要求1所述的终端设备,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 如权利要求2所述的终端设备,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的索引;或所述受影响编码块的组索引;或第一编码块的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求2所述的终端设备,其特征在于,所述受影响编码块对应的资源的标识信息包括:所述受影响编码块对应的资源的索引;或所述受影响编码块对应的资源的组索引;或第一编码块对应的资源的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块对应的资源组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求1-4所述的任一终端设备,其特征在于,如果所述至少一个传输块为HARQ重传的传输块,所述控制信息中携带所述受影响编码块的指示信息;如果所述至少一个传输块为HARQ初传的传输块,所述控制信息中不携带所述受影响编码块的指示信息。
- 如权利要求1-5所述的任一终端设备,其特征在于,所述至少一个传输块为HARQ重传的传输块,所述受影响编码块的指示信息携带在所述控制信息中的调制编码指示字段中。
- 如权利要求1-6所述的任一终端设备,其特征在于,如果所述至少一个传输块为HARQ 重传的传输块,所述接收单元用于接收所述至少一个传输块,且不对所述受影响编码块对应的数据进行HARQ合并。
- 如权利要求1-7所述的任一终端设备,其特征在于,还包括:发送单元,用于向所述无线接入网设备发送第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 一种无线接入网设备,其特征在于,包括:发送单元,用于向终端设备发送控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;其中,所述发送单元还用于,向所述终端设备发送所述至少一个传输块中除所述受影响编码块之外的至少一个编码块。
- 如权利要求9所述的无线接入网设备,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 如权利要求10所述的无线接入网设备,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的索引;或所述受影响编码块的组索引;或第一编码块的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求10所述的无线接入网设备,其特征在于,所述受影响编码块对应的资源的标识信息包括:所述受影响编码块对应的资源的索引;或所述受影响编码块对应的资源的组索引;或第一编码块对应的资源的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块对应的资源组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求9-12所述的任一无线接入网设备,其特征在于,如果所述至少一个传输块为HARQ重传的传输块,所述控制信息中携带所述受影响编码块的指示信息;如果所述至少一个传输块为HARQ初传的传输块,所述控制信息中不携带所述受影响编码块 的指示信息。
- 如权利要求9-13所述的任一无线接入网设备,其特征在于,所述至少一个传输块为HARQ重传的传输块,所述受影响编码块的指示信息携带在所述控制信息中的调制编码指示字段中。
- 如权利要求9-14所述的任一无线接入网设备,其特征在于,还包括:接收单元,用于接收所述终端设备发送的第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 一种数据传输方法,其特征在于,包括:终端设备接收无线接入网设备发送的控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;所述终端设备根据所述受影响编码块的指示信息确定所述受影响编码块;所述终端设备根据所述控制信息以及确定的所述受影响编码块接收所述至少一个传输块。
- 如权利要求16所述的方法,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 如权利要求17所述的方法,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的索引;或所述受影响编码块的组索引;或第一编码块的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求17所述的方法,其特征在于,所述受影响编码块对应的资源的标识信息包括:所述受影响编码块对应的资源的索引;或所述受影响编码块对应的资源的组索引;或第一编码块对应的资源的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块对应的资源组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求16-19所述的任一方法,其特征在于,如果所述至少一个传输块为HARQ 重传的传输块,所述控制信息中携带所述受影响编码块的指示信息;如果所述至少一个传输块为HARQ初传的传输块,所述控制信息中不携带所述受影响编码块的指示信息。
- 如权利要求16-20所述的任一方法,其特征在于,所述至少一个传输块为HARQ重传的传输块,所述受影响编码块的指示信息携带在所述控制信息中的调制编码指示字段中。
- 如权利要求16-21所述的任一方法,其特征在于,所述终端设备根据所述控制信息以及确定的所述受影响编码块接收所述至少一个传输块,包括:如果所述至少一个传输块为HARQ重传的传输块,所述终端设备不对所述受影响编码块对应的数据进行HARQ合并。
- 如权利要求16-22所述的任一方法,其特征在于,还包括:所述终端设备向所述无线接入网设备发送第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 一种数据传输方法,其特征在于,所述方法包括:无线接入网设备向终端设备发送控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;所述无线接入网设备向终端设备至少发送所述至少一个传输块中除所述受影响编码块之外的至少一个编码块。
- 如权利要求24所述的方法,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 如权利要求25所述的方法,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的索引;或所述受影响编码块的组索引;或第一编码块的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求25所述的方法,其特征在于,所述受影响编码块对应的资源的标识信息包括:所述受影响编码块对应的资源的索引;或所述受影响编码块对应的资源的组索引;或第一编码块对应的资源的索引,所述受影响编码块包括顺序上在所述第一编码块之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块以及顺序上在所述第一编码块之前或之后的编码块;或第一编码块对应的资源组的索引,所述受影响编码块包括顺序上在所述第一编码块组之前或之后的编码块,或者,所述受影响编码块包括所述第一编码块组以及顺序上在所述第一编码块组之前或之后的编码块。
- 如权利要求24-27所述的任一方法,其特征在于,如果所述至少一个传输块为HARQ重传的传输块,所述控制信息中携带所述受影响编码块的指示信息;如果所述至少一个传输块为HARQ初传的传输块,所述控制信息中不携带所述受影响编码块的指示信息。
- 如权利要求24-28所述的任一方法,其特征在于,所述至少一个传输块为HARQ重传的传输块,所述受影响编码块的指示信息携带在所述控制信息中的调制编码指示字段中。
- 如权利要求24-29所述的任一方法,其特征在于,还包括:所述无线接入网设备接收所述终端设备发送的第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 一种终端设备,其特征在于,包括:接收单元,用于接收无线接入网设备发送的控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;根据所述控制信息接收所述至少一个传输块;处理单元,用于所述终端设备根据所述受影响编码块的指示信息确定所述受影响编码块,并确定第一指示信息;其中,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量;发送单元,用于向所述无线接入网设备发送第一指示信息。
- 如权利要求31所述的终端设备,其特征在于,所述第一指示信息的比特数为一,所述处理单元用于确定所述第二编码块是否被全部正确接收,如果所述第二编码块被全部正确接收,则所述第一指示信息为一个确认比特,如果至少一个第二编码块未被正确接收,则所述第一指示信息为一个不确认比特。
- 如权利要求31或32所述的终端设备,其特征在于,所述处理单元还用于确定第二指示信息,所述第二指示信息用于指示所述受影响编码块是否被正确接收;所述发送单元还用于向所述无线接入网设备发送所述第二指示信息。
- 如权利要求33所述的终端设备,其特征在于,所述第二指示信息的比特数为一,所述处理单元用于确认所述受影响编码块是否被全部正确接收,如果所述受影响编码块被全部正确接收,则所述第二指示信息为一个确认比特,如果至少一个受影响编码块未被正确接收,则所述第二指示信息为一个不确认比特。
- 如权利要求31或32所述的终端设备,其特征在于,所述终端设备不向所述无线接入网设备发送所述受影响编码块是否被正确接收的指示信息。
- 如权利要求31-35所述的任一终端设备,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 一种无线接入网设备,其特征在于,包括:发送单元,用于向终端设备发送控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;向终端设备至少发送至少一个传输块中除所述受影响编码块之外的至少一个编码块;接收单元,用于接收所述终端设备发送的第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 如权利要求37所述的无线接入网设备,其特征在于,所述第一指示信息的比特数为一。
- 如权利要求37或38所述的无线接入网设备,其特征在于,所述接收单元还用于接收所述终端设备发送的第二指示信息,所述第二指示信息指示受影响编码块是否被正确接收,所述第二指示信息包含的比特数少于所述受影响编码块的数量。
- 如权利要求39所述的无线接入网设备,其特征在于,所述第二指示信息的比特数为一。
- 如权利要求37或38所述的无线接入网设备,其特征在于,所述无线接入网设备不接收第二指示信息,所述第二指示信息用于指示所述受影响编码块是否被正确接收。
- 如权利要求37-41所述的任一无线接入网设备,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 一种数据传输方法,其特征在于,包括:终端设备接收无线接入网设备发送的控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;所述终端设备根据所述控制信息接收所述至少一个传输块;所述终端设备根据所述受影响编码块的指示信息确定所述受影响编码块;所述终端设备向所述无线接入网设备发送第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 如权利要求43所述的方法,其特征在于,所述第一指示信息的比特数为一,所述终端设备向所述无线接入网设备发送第一指示信息,包括:如果所述第二编码块被全部正确接收,则所述终端设备向所述无线接入网设备发送一个确认比特,如果至少一个第二编码块未被正确接收,则所述终端设备向所述无线接入网设备发送一个不确认比特。
- 如权利要求43或44所述的方法,其特征在于,还包括:所述终端设备向所述无线接入网设备发送第二指示信息,所述第二指示信息用于指 示所述受影响编码块是否被正确接收。
- 如权利要求45所述的方法,其特征在于,所述第二指示信息的比特数为一,所述终端设备向所述无线接入网设备发送第二指示信息,包括:如果所述受影响编码块被全部正确接收,则所述终端设备向所述无线接入网设备发送一个确认比特,如果至少一个受影响编码块未被正确接收,则所述终端设备向所述无线接入网设备发送一个不确认比特。
- 如权利要求43或44所述的方法,其特征在于,所述终端设备不向所述无线接入网设备发送所述受影响编码块是否被正确接收的指示信息。
- 如权利要求43-47所述的任一方法,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 一种数据传输方法,其特征在于,包括:无线接入网设备向终端设备发送控制信息和受影响编码块的指示信息,所述控制信息用于所述无线接入网设备调度所述终端设备的至少一个传输块,所述至少一个传输块中的每个传输块中包括至少一个编码块,所述受影响编码块为所述至少一个传输块中的至少一个编码块;所述无线接入网设备向终端设备至少发送至少一个传输块中除所述受影响编码块之外的至少一个编码块;所述无线接入网设备接收所述终端设备发送的第一指示信息,所述第一指示信息指示第二编码块是否被正确接收,所述第二编码块为所述至少一个编码块中除所述受影响编码块之外的编码块,所述第一指示信息包含的比特数少于所述第二编码块的数量。
- 如权利要求49所述的方法,其特征在于,所述第一指示信息的比特数为一。
- 如权利要求49或50所述的方法,其特征在于,所述方法还包括:所述无线接入网设备接收所述终端设备发送的第二指示信息,所述第二指示信息指示受影响编码块是否被正确接收,所述第二指示信息包含的比特数少于所述受影响编码块的数量。
- 如权利要求51所述的方法,其特征在于,所述第二指示信息的比特数为一。
- 如权利要求49或50所述的方法,其特征在于,还包括:所述无线接入网设备不接收第二指示信息,所述第二指示信息用于指示所述受影响编码块是否被正确接收。
- 如权利要求49-53所述的任一方法,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息或所述受影响编码块对应的资源的标识信息。
- 一种数据传输方法,其特征在于,包括:无线接入网设备向终端设备发送传输块,所述传输块中包括至少两个编码块;所述无线接入网设备向所述终端设备发送所述传输块中的部分编码块;和所述无线接入网设备接收所述终端设备发送的针对所述传输块的确认或不确认信息,所述确认信息用于指示所述终端设备已经正确接收所述传输块中的所有编码块。
- 根据权利要求55所述的方法,其特征在于,还包括:所述无线接入网设备向所述终端设备发送第一调度信息,所述第一调度信息用于向 所述终端设备指示所述部分编码块的传输信息,所述部分编码块的传输信息包括是否为部分编码块传输和/或所述部分编码块的索引。
- 根据权利要求56所述的方法,其特征在于,所述第一调度信息承载在调度所述部分编码块的控制信息中。
- 根据权利要求56所述的方法,其特征在于,所述第一调度信息通过MCS字段的全部或部分状态指示。
- 根据权利要求55-58所述的任一方法,其特征在于,所述部分编码块包括受影响编码块。
- 根据权利要求56-59所述的任一方法,其特征在于,所述控制信息还包括所述受影响编码块的指示信息。
- 根据权利要求60所述的方法,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息。
- 根据权利要求61所述的方法,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的组索引。
- 根据权利要求55-62所述的任一方法,其特征在于,所述无线接入网设备向所述终端设备发送所述传输块时使用的HARQ进程号,与所述无线接入网设备向所述终端设备发送所述传输块中的部分编码块时使用的HARQ进程号相同。
- 一种数据传输方法,其特征在于,包括:终端设备接收来自无线接入网设备的传输块,所述传输块中包括至少两个编码块;所述终端设备接收来自所述无线接入网设备的所述传输块中的部分编码块;和所述终端设备向所述无线接入网设备发送针对所述传输块的确认或不确认信息,所述确认信息用于指示所述终端设备已经正确接收所述传输块中的所有编码块。
- 根据权利要求64所述的方法,其特征在于,所述终端设备接收来自所述无线接入网设备的第一调度信息,所述终端设备根据所述第一调度信息确定所述部分编码块的传输信息,所述部分编码块的传输信息包括是否为部分编码块传输和/或所述部分编码块的索引。
- 根据权利要求65所述的方法,其特征在于,所述第一调度信息承载在调度所述部分编码块的控制信息中。
- 根据权利要求65所述的方法,其特征在于,所述第一调度信息通过MCS字段的全部或部分状态指示。
- 根据权利要求64-67所述的任一方法,其特征在于,所述部分编码块包括受影响编码块。
- 根据权利要求65-68所述的任一方法,其特征在于,所述控制信息还包括所述受影响编码块的指示信息。
- 根据权利要求69所述的方法,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息。
- 根据权利要求70所述的方法,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的组索引。
- 根据权利要求64-71所述的任一方法,其特征在于,所述终端设备接收来自所述无线接入网设备的发送所述传输块时使用的HARQ进程号,与所述无线接入网设备向所述终端设备发送所述传输块中的部分编码块时使用的HARQ进程号相同。
- 一种无线接入网设备,其特征在于,包括:发送模块,用于向终端设备发送传输块,所述传输块中包括至少两个编码块;和接收模块,用于接收所述终端设备发送的针对所述传输块的不确认信息,所述不确认信息用于指示所述终端设备未正确接收所述传输块;所述发送模块,还用于向所述终端设备发送所述传输块中的部分编码块;所述接收模块,还用于接收所述终端设备发送的针对所述传输块的确认或不确认信息,所述确认信息用于指示所述终端设备已经正确接收所述传输块中的所有编码块。
- 根据权利要求73所述的无线接入网设备,其特征在于,所述发送模块,还用于向所述终端设备发送第一调度信息,所述第一调度信息用于向所述终端设备指示所述部分编码块的传输信息,所述部分编码块的传输信息包括是否为部分编码块传输和/或所述部分编码块的索引。
- 根据权利要求74所述的无线接入网设备,其特征在于,所述第一调度信息承载在调度所述部分编码块的控制信息中。
- 根据权利要求74所述的无线接入网设备,其特征在于,所述第一调度信息通过MCS字段的全部或部分状态指示。
- 根据权利要求73-76所述的任一无线接入网设备,其特征在于,所述部分编码块包括受影响编码块。
- 根据权利要求74-77所述的任一无线接入网设备,其特征在于,所述控制信息还包括所述受影响编码块的指示信息。
- 根据权利要求78所述的无线接入网设备,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息。
- 根据权利要求79所述的无线接入网设备,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的组索引。
- 根据权利要求73-80所述的任一无线接入网设备,其特征在于,所述无线接入网设备向所述终端设备发送所述传输块时使用的HARQ进程号,与所述无线接入网设备向所述终端设备发送所述传输块中的部分编码块时使用的HARQ进程号相同。
- 一种终端设备,其特征在于,包括:接收模块,用于接收无线接入网设备发送的传输块,所述传输块中包括至少两个编码块;和发送模块,用于向所述无线接入网设备发送针对所述传输块的不确认信息,所述不确认信息用于指示所述终端设备未正确接收所述传输块;所述接收模块,还用于接收所述无线接入网设备发送的传输块中的部分编码块;所述发送模块,还用于向所述无线接入网设备发送针对所述传输块的确认或不确认信息,所述确认信息用于指示所述终端设备已经正确接收所述传输块中的所有编码块。
- 根据权利要求82所述的终端设备,其特征在于,所述接收模块,还用于接收所述无线接入网设备发送的第一调度信息,所述终端设备根据所述第一调度信息确定所述部分编码块的传输信息,所述部分编码块的传输信息包括是否为部分编码块传输和/或所述部分编码块的索引。
- 根据权利要求83所述的终端设备,其特征在于,所述第一调度信息承载在调度所述部分编码块的控制信息中。
- 根据权利要求83所述的终端设备,其特征在于,所述第一调度信息通过MCS字段的全部或部分状态指示。
- 根据权利要求82-85所述的任一终端设备,其特征在于,所述部分编码块包括受影响编码块。
- 根据权利要求83-86所述的任一终端设备,其特征在于,所述控制信息还包括所述受影响编码块的指示信息。
- 根据权利要求87所述的终端设备,其特征在于,所述受影响编码块的指示信息包括:所述受影响编码块的标识信息。
- 根据权利要求88所述的终端设备,其特征在于,所述受影响编码块的标识信息包括:所述受影响编码块的组索引。
- 根据权利要求82-89所述的任一终端设备,其特征在于,所述终端设备接收来自所述无线接入网设备的发送所述传输块时使用的HARQ进程号,与所述无线接入网设备向所述终端设备发送所述传输块中的部分编码块时使用的HARQ进程号相同。
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EP3522412A4 (en) | 2019-10-09 |
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RU2019113220A3 (zh) | 2020-11-10 |
US20220286227A1 (en) | 2022-09-08 |
US11356205B2 (en) | 2022-06-07 |
CN107888330B (zh) | 2022-04-05 |
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AU2017337010A1 (en) | 2019-04-18 |
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