CN110463094A - A kind of method and apparatus in the user equipment for supporting hybrid automatic repeat-request, base station - Google Patents

A kind of method and apparatus in the user equipment for supporting hybrid automatic repeat-request, base station Download PDF

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CN110463094A
CN110463094A CN201780088317.7A CN201780088317A CN110463094A CN 110463094 A CN110463094 A CN 110463094A CN 201780088317 A CN201780088317 A CN 201780088317A CN 110463094 A CN110463094 A CN 110463094A
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bits
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wireless signal
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CN110463094B (en
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张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Nantong Langheng Communication Technology Co ltd
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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
    • 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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • 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
    • 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]
    • 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
    • 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
    • H04L1/1874—Buffer management

Abstract

This application discloses the method and apparatus in a kind of user equipment for supporting hybrid automatic repeat-request, base station.User equipment receives the first wireless signal first；Then the first signaling is received；Then second wireless singal is received.Wherein, X1 bit block be used to generate first wireless signal, and the X1 is greater than 1 positive integer, and each of described X1 bit block bit block includes positive integer bit, and the X1 bit block belongs to the same transmission block；Only have X2 bit block in the X1 bit block and be used to generate the second wireless singal, the X2 is less than the positive integer of the X1；At least one of { X2, described first signaling } is used for determining that X2 buffer size, the X2 buffer size and the X2 bit block correspond.The quantity of incremental redundancy bits, improves the coding gain of re-transmission when the application increase retransmits.

Description

Method and device in user equipment and base station supporting hybrid automatic repeat request Technical Field
The present application relates to transmission schemes in wireless communication systems, and more particularly, to a method and apparatus for data transmission in support of hybrid automatic repeat request.
Background
In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on a New air interface technology (NR, New Radio) is decided on 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 global meetings. The standardization of the 5G new air interface technology was started by establishing work items (WI, work Item) of the 5G new air interface technology (NR) at 3GPP RAN #75 congress.
In order to be capable of flexibly adapting to various application scenarios, a future wireless communication system, particularly a 5G NR, may support a more flexible Hybrid Automatic Repeat request (HARQ) and a corresponding data retransmission design, such as supporting HARQ retransmission based on CB (Code Block) or CBG (Code Block Group). However, in the existing LTE system, HARQ retransmission based on a TB (Transport Block) is only supported, and allocation of a corresponding buffer resource (Soft buffer bits) in a Rate Matching (Rate Matching) process is also allocated according to CBs included in the entire TB Block.
Disclosure of Invention
Without conflict, the features in embodiments and embodiments of the User Equipment (UE) of the present application may be applied to a base station and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.
The application discloses a method in user equipment for wireless communication, which is characterized by comprising the following steps:
-receiving a first wireless signal;
-receiving a first signaling;
-receiving a second wireless signal;
wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
As an embodiment, the method has the advantages that buffer resources in HARQ retransmission based on Coding Block (CB) or Coding Block Group (CBG) level are redistributed among the coding blocks for initial transmission and retransmission according to the number of coding blocks or coding block groups for retransmission, the number of incremental redundancy bits in retransmission rate matching (rate matching) is increased, and coding gain of retransmission is improved.
As an embodiment, the method has the advantages that the first signaling is used for network configuration of the buffer resources of the coding blocks or the coding block groups retransmitted by the HARQ, so that the effect of dynamically and flexibly allocating the buffer resources to each coding block can be achieved, the utilization rate of the buffer resources is increased, and the transmission performance is improved.
As an embodiment, the X2 buffers with corresponding buffer sizes are reserved for the X2 bit blocks respectively.
As one embodiment, the X2 buffer sizes are for the second wireless signal only.
As one embodiment, the X2 buffer sizes are for all wireless signals transmitting the X2 bit block.
As an embodiment, each of the X1 bit blocks is a Code Block (CB).
As an embodiment, each of the X1 bit blocks is a Code Block Group (CBG).
As an embodiment, one bit block of the X1 bit blocks includes no more than K bits, where K is a predefined positive integer; or the K is related to the number of bits included in the transmission block to which the bit block belongs.
As an embodiment, the X1 bit blocks are obtained by dividing (Segmentation) a Transport Block (TB).
As an embodiment, any two bit blocks of the X1 bit blocks include equal number of bits.
As an embodiment, there are two bit blocks in the X1 bit blocks, which comprise different numbers of bits.
As an embodiment, the X1 bit blocks are sequentially subjected to CRC (Cyclic Redundancy Check) addition, Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (configuration) to obtain a first output bit block, and the first output bit block is sequentially subjected to Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) to obtain the first radio signal.
As an embodiment, any two bit blocks of the X2 bit blocks include equal number of bits.
As an embodiment, there are two bit blocks in the X2 bit blocks, which comprise different numbers of bits.
As an embodiment, the X2 bit blocks are sequentially subjected to CRC (Cyclic Redundancy Check) addition, Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (configuration) to obtain a second output bit block, and the second output bit block is sequentially subjected to Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) to obtain the second wireless signal.
As an embodiment, the first radio signal is transmitted through a DL-SCH (Downlink Shared Channel).
As an embodiment, the first wireless signal is transmitted through a PDSCH (Physical Downlink Shared Channel).
As an embodiment, the first Radio signal is transmitted through a NR-PDSCH (New Radio Physical Downlink Shared Channel).
As an embodiment, the second wireless signal is transmitted through a PDSCH (Physical Downlink Shared Channel).
As an embodiment, the second Radio signal is transmitted through a NR-PDSCH (New Radio Physical Downlink Shared Channel).
As an embodiment, the first wireless signal and the second wireless signal belong to the same HARQ (Hybrid Automatic Repeat request) process.
As an embodiment, the first wireless signal is an initial transmission of an HARQ process.
As an embodiment, the second wireless signal is a retransmission of one HARQ process.
As an embodiment, the first wireless signal is a retransmission of one HARQ process.
As an embodiment, the method further comprises:
-receiving third signalling;
wherein the third signaling is used to determine scheduling information of the first wireless signal, and the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, belonging HARQ process number, MCS, RV }.
As an embodiment, any two of the X2 cache sizes are the same.
As one embodiment, there are two cache sizes of the X2 cache sizes that are different.
As an example, the buffer size refers to the number of bits in Soft buffer bits (Soft buffer bits).
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is DCI (Downlink Control Information).
As an embodiment, the first signaling is transmitted through a PDCCH (Physical Downlink Control Channel).
As an embodiment, the first signaling is transmitted through a NR-PDCCH (New Radio Physical Downlink Control Channel).
As an embodiment, at least one of { the X2, the first signaling } is used by the user equipment to determine the X2 buffer sizes.
According to an aspect of the application, the above method is characterized in that the first bit block is one of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine a number of bits in a target bit block, the target bit block comprises incremental redundancy bits compared to output bits of the first bit block subjected to channel coding in the second wireless signal and output bits of the first bit block subjected to channel coding in the first wireless signal, and the target bit block comprises a non-negative integer number of bits.
As an embodiment, the channel coding is LDPC (Low Density Parity Check Code) coding.
In one embodiment, the channel coding is Turbo coding.
As an embodiment, the channel coding is Convolutional coding (Convolutional code).
As an embodiment, the channel coding is a Polar code.
For one embodiment, the Incremental Redundancy (Incremental Redundancy) Bits include Parity Bits.
As one embodiment, the Incremental Redundancy (Incremental Redundancy) Bits include check Bits (Parity Bits) and information Bits.
As one embodiment, the incremental redundancy bits are an incremental output based on an existing output of the channel coding.
As an embodiment, a buffer size corresponding to the first bit block of the X2 buffer sizes is used by the user equipment to determine the number of bits in the target bit block.
As an embodiment, a buffer size corresponding to the first bit block of the X2 buffer sizes is used by a sender of the second wireless signal to determine a number of bits in the target bit block.
According to one aspect of the present application, the above method is characterized by further comprising:
-transmitting second signaling;
wherein the second signaling is used to determine the X2 bit block.
As one embodiment, the second signaling is used to determine the X2 of the bit blocks in the X1 bit blocks.
As an embodiment, the second signaling indicates that the X2 bit block was error decoded.
As an embodiment, the second signaling indicates that an X3 bit block of the X1 bit blocks was error coded, the X3 bit block is used to determine the X2 bit block, the X3 is a positive integer no greater than the X1.
As an embodiment, the second signaling indicates that an X3 bit block of the X1 bit blocks is error coded, the X2 bit block is included in the X3 bit blocks, and the X3 is a positive integer no greater than the X1.
As an embodiment, the second signaling is used by a recipient of the second signaling to determine the X2 bit block.
As an embodiment, the second signaling includes ACK/NACK information for each of the X1 bit blocks.
As an embodiment, the second signaling is physical layer signaling.
As an embodiment, the second signaling is UCI (Uplink Control Information).
As an embodiment, the second signaling is transmitted through a Physical Uplink Control Channel (PUCCH).
As an embodiment, the second signaling is carried through a PUSCH (Physical Uplink Shared Channel).
According to an aspect of the application, the above method is characterized in that the first signaling is used for determining the X2 bit blocks.
As an embodiment, the second signaling indicates that an X3 bit block of the X1 bit blocks is error coded, and the first signaling indicates the X2 bit block from the X3 bit block.
As an embodiment, the first signaling indicates the X2 bit block from the X1 bit block.
As an embodiment, the first signaling is used by the user equipment to determine the X2 bit block.
As an embodiment, the first signaling indicates an index of the X2 bit block.
According to an aspect of the present application, the method is characterized in that the first signaling is used to determine scheduling information of the second wireless signal, the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in an output bit of the first bit block subjected to channel coding.
As an embodiment, the Hybrid Automatic Repeat request (HARQ) process number is an integer.
As an embodiment, the Redundancy Version (RV) indicates a position of a start bit of the target bit block in channel-coded output bits of the first bit block.
As an embodiment, the redundancy version indicates a position of a start bit of the target block of bits in a Circular Buffer, which is used to determine a position of the first block of bits in channel coded output bits.
As an embodiment, the target bit block is composed of bits sequentially read from a start bit in a circular buffer indicated by the redundancy version according to rate matching.
As an embodiment, the Modulation Coding Scheme (MCS) includes one of { QPSK, 16QAM, 64QAM, 256QAM, 1024QAM }.
As an embodiment, the redundancy version is used by the user equipment to determine the position of the target bit block in the channel coded output bits of the first bit block.
According to one aspect of the present application, the above method is characterized by further comprising:
-receiving first information;
wherein the first information is used to determine configuration information of a receiver of the first information, the configuration information including at least one of { the transmission mode, the maximum number of mimo layers supported, the maximum number of dl harq processes supported, and the modulation and coding scheme set supported }, { the buffer capacity of the receiver of the first information, the configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
As an embodiment, the method further comprises:
-transmitting the second information;
wherein the second information indicates the caching capacity of the recipient of the first information.
As an embodiment, one of { the X1, the number of bits included in the X1 bit block } is also used to determine the sum of the X2 buffer sizes.
As an embodiment, the Transmission Mode (TM) includes a diversity-based Transmission Mode and a Beamforming-based Transmission Mode.
As an embodiment, the Transmission Mode (TM) includes a single antenna Transmission Mode.
As an embodiment, the maximum number of MIMO layers supported includes at least one of {1,2,4,8,16 }.
As one embodiment, the maximum number of MIMO layers supported includes layers of analog beams and layers of digital beams.
As an embodiment, the buffer capacity of the receiver of the first information is a number of Bits in Soft Channel Bits (Soft Channel Bits) of the receiver of the first information.
As an embodiment, the receiver capability information of the first information includes the cache capacity information of the receiver of the first information.
As an embodiment, the buffering capacity of the receiver of the first information, the configuration information of the receiver of the first information is used by the user equipment to determine the sum of the X2 buffering sizes.
As one embodiment, the X2 buffer sizes are for only the second wireless signal, the sum N of the X2 buffer sizesIRObtained by the following formula:
Figure PCTCN2017084137-APPB-000001
wherein N issoftIs the buffer capacity, K, of the recipient of said first informationCIs and NsoftA related value, or KCIs the number of carriers (carriers) configured, KMIMOIs the maximum number of MIMO layers, M, supported by the receiver of the first informationDL_HARQIs the maximum number of downlink HARQ processes supported by the receiver of the first information, MlimitIs a predefined value (e.g. 8) or is configurable, NinitialIs that the X1 bit blocks are for the wireless signal preceding the second wireless signalThe total number of bits of the channel coded output.
As one embodiment, the sum N of the X2 buffer sizesIRObtained by the following formula:
Figure PCTCN2017084137-APPB-000002
wherein N issoftIs the buffer capacity, K, of the recipient of said first informationCIs and NsoftA related value, or KCIs the number of carriers (carriers) configured, KMIMOIs the maximum number of MIMO layers, M, supported by the receiver of the first informationDL_HARQIs the maximum number of downlink HARQ processes supported by the receiver of the first information, MlimitIs a predefined value (e.g. 8) or is configurable, Ninitial_remainIs the total number of bits of the output of the X1 bit blocks other than the X2 bit blocks after being channel-coded for the wireless signal preceding the second wireless signal.
As one embodiment, the X2 cache sizes are all equal, and any cache size N in the X2 cache sizescbIs obtained by the following formula:
Figure PCTCN2017084137-APPB-000003
wherein N isIRIs the sum of the X2 buffer sizes, KwIs the length of the circular buffer.
According to an aspect of the application, the above method is characterized in that said first signaling indicates at least the latter of { said X2, said X2 buffer sizes }.
As one embodiment, the first signaling explicitly indicates at least the latter of { the X2, the X2 buffer sizes }.
As one embodiment, the first signaling implicitly indicates at least the latter of { the X2, the X2 buffer sizes }.
The application discloses a method in a base station device for wireless communication, which is characterized by comprising the following steps:
-transmitting a first wireless signal;
-transmitting first signalling;
-transmitting a second wireless signal;
wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
According to an aspect of the application, the above method is characterized in that the first bit block is one of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine a number of bits in a target bit block, the target bit block comprises incremental redundancy bits compared to output bits of the first bit block subjected to channel coding in the second wireless signal and output bits of the first bit block subjected to channel coding in the first wireless signal, and the target bit block comprises a non-negative integer number of bits.
According to one aspect of the present application, the above method is characterized by further comprising:
-receiving second signaling;
wherein the second signaling is used to determine the X2 bit block.
According to an aspect of the application, the above method is characterized in that the first signaling is used for determining the X2 bit blocks.
According to an aspect of the present application, the method is characterized in that the first signaling is used to determine scheduling information of the second wireless signal, the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in an output bit of the first bit block subjected to channel coding.
According to one aspect of the present application, the above method is characterized by further comprising:
-transmitting the first information;
wherein the first information is used to determine configuration information of a receiver of the first information, the configuration information including at least one of { the transmission mode, the maximum number of mimo layers supported, the maximum number of dl harq processes supported, and the modulation and coding scheme set supported }, { the buffer capacity of the receiver of the first information, the configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
According to an aspect of the application, the above method is characterized in that said first signaling indicates at least the latter of { said X2, said X2 buffer sizes }.
The application discloses user equipment for wireless communication, characterized by, includes:
-a first processing module receiving a first wireless signal;
-a first receiving module receiving a first signaling;
-a second receiving module receiving a second wireless signal;
wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
According to an aspect of the application, the above user equipment is characterized in that the first bit block is one of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine a number of bits in a target bit block, the target bit block comprises incremental redundancy bits compared to output bits of the first bit block subjected to channel coding in the second radio signal and output bits of the first bit block subjected to channel coding in the first radio signal, and the target bit block comprises a non-negative integer number of bits.
According to an aspect of the application, the above user equipment is characterized in that the first processing module further sends a second signaling, and the second signaling is used for determining the X2 bit block.
According to an aspect of the application, the above user equipment is characterized in that the first signaling is used for determining the X2 bit blocks.
According to an aspect of the present application, the above user equipment is characterized in that the first signaling is used to determine scheduling information of the second wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in an output bit of the first bit block that is channel-coded.
According to an aspect of the present application, the user equipment as described above is characterized in that the first processing module further receives first information, where the first information is used to determine configuration information of a receiver of the first information, and the configuration information includes at least one of { transmission mode in which, maximum number of mimo output layers supported, maximum number of dl harq processes supported, modulation and coding scheme set supported }, and { buffer capacity of the receiver of the first information, configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
According to an aspect of the application, the above user equipment is characterized in that the first signaling indicates at least the latter of { the X2, the X2 buffer sizes }.
The application discloses a base station equipment for wireless communication, characterized by, includes:
-a second processing module to transmit a first wireless signal;
-a first sending module to send a first signaling;
-a second transmitting module for transmitting a second wireless signal;
wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
According to an aspect of the application, the base station apparatus is characterized in that the first bit block is one bit block of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine the number of bits in a target bit block, the target bit block includes incremental redundancy bits comparing output bits of the first bit block subjected to channel coding in the second wireless signal with output bits of the first bit block subjected to channel coding in the first wireless signal, and the target bit block includes a non-negative integer number of bits.
According to an aspect of the application, the base station device as described above is characterized in that the second processing module further receives second signaling, and the second signaling is used for determining the X2 bit block.
According to an aspect of the application, the above base station apparatus is characterized in that the first signaling is used to determine the X2 bit block.
According to an aspect of the present application, the base station device is characterized in that the first signaling is used to determine scheduling information of the second wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in an output bit of the first bit block that is channel-coded.
According to an aspect of the present application, the base station device as described above is further configured to send first information, where the first information is used to determine configuration information of a receiver of the first information, and the configuration information includes at least one of { the transmission mode in which the first information is located, the maximum number of mimo output layers supported, the maximum number of dl harq processes supported, and the modulation and coding scheme set supported }, { the buffer capacity of the receiver of the first information, and the configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
According to an aspect of the present application, the above base station apparatus is characterized in that the first signaling indicates at least the latter of { the X2, the X2 buffer sizes }.
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Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 shows a wireless signal transmission flow diagram according to an embodiment of the application;
FIG. 2 shows a wireless signal transmission flow diagram according to another embodiment of the present application;
FIG. 3 shows a first wireless signal and a second wireless signal relationship diagram according to an embodiment of the present application;
FIG. 4 shows a schematic diagram of X2 cache sizes, according to one embodiment of the present application;
FIG. 5 shows a schematic diagram of a target block of bits according to an embodiment of the present application;
FIG. 6 illustrates a schematic diagram of configuration information for a recipient of first information, according to an embodiment of the present application;
FIG. 7 shows a block diagram of a processing device in a User Equipment (UE) according to an embodiment of the present application;
fig. 8 shows a block diagram of a processing means in a base station according to an embodiment of the present application;
fig. 9 shows a schematic diagram of an example of a base station and user equipment according to an embodiment of the application.
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a wireless signal transmission flow diagram according to an embodiment of the present application, as shown in fig. 1. In fig. 1, base station N1 is a serving cell maintaining base station for UE U2.
For theBase station N1The first information is transmitted in step S11, the first wireless signal is transmitted in step S12, the second signaling is received in step S13, the first signaling is transmitted in step S14, and the second wireless signal is transmitted in step S15.
For theUE U2The first information is received in step S21, the first wireless signal is received in step S22, the second signaling is transmitted in step S23, the first signaling is received in step S24, and the second wireless signal is received in step S25.
In embodiment 1, X1 bit blocks are used for generating the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks. The second signaling is used to determine the X2 bit blocks, the first information is used to determine configuration information of a receiver of the first information, and the configuration information includes at least one of { transmission mode in, maximum number of mimo output layers supported, maximum number of dl harq processes supported, modulation and coding scheme set supported }, and { buffer capacity of the receiver of the first information, configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
As an embodiment, a first bit block is one bit block of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine a number of bits in a target bit block, the target bit block includes incremental redundancy bits compared to output bits of the first bit block that were channel coded in the second wireless signal and output bits of the first bit block that were channel coded in the first wireless signal, and the target bit block includes a non-negative integer number of bits.
As an embodiment, the first signaling is used to determine the X2 blocks of bits.
As an embodiment, the first signaling is used to determine scheduling information of the second wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in output bits of the first bit block that have undergone channel coding.
As an embodiment, the first signaling indicates at least the latter of the X2, the X2 buffer sizes.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is DCI (Downlink Control Information).
As an embodiment, the first signaling is transmitted through a PDCCH (Physical Downlink Control Channel).
As an embodiment, the first signaling is transmitted through a NR-PDCCH (New Radio Physical Downlink Control Channel).
As one embodiment, the second signaling is used to determine the X2 of the bit blocks in the X1 bit blocks.
As an embodiment, the second signaling indicates that the X2 bit block was error decoded.
As an embodiment, the second signaling indicates that an X3 bit block of the X1 bit blocks was error coded, the X3 bit block is used to determine the X2 bit block, the X3 is a positive integer no greater than the X1.
As an embodiment, the second signaling indicates that an X3 bit block of the X1 bit blocks is error coded, the X2 bit block is included in the X3 bit blocks, and the X3 is a positive integer no greater than the X1.
As an embodiment, the second signaling includes ACK/NACK information for each of the X1 bit blocks.
As an embodiment, the second signaling is physical layer signaling.
As an embodiment, the second signaling is UCI (Uplink Control Information).
As an embodiment, the second signaling is transmitted through a Physical Uplink Control Channel (PUCCH).
As an embodiment, the second signaling is carried through a PUSCH (Physical Uplink Shared Channel).
As an embodiment, the second signaling indicates that an X3 bit block of the X1 bit blocks is error coded, and the first signaling indicates the X2 bit block from the X3 bit block.
As an embodiment, the first signaling indicates the X2 bit block from the X1 bit block.
As an embodiment, the first signaling is used by the user equipment to determine the X2 bit block.
As an embodiment, the first signaling indicates an index of the X2 bit block.
As one embodiment, the first signaling explicitly indicates at least the latter of { the X2, the X2 buffer sizes }.
As one embodiment, the first signaling implicitly indicates at least the latter of { the X2, the X2 buffer sizes }.
Example 2
Embodiment 2 illustrates a wireless signal transmission flow chart according to another embodiment of the present application, as shown in fig. 2. In fig. 2, base station N3 is the maintaining base station of the serving cell for UE U4.
For theBase station N3The second information is received in step S31, the first information is transmitted in step S32, the third signaling is transmitted in step S33, the first wireless signal is transmitted in step S34, the second signaling is received in step S35, the first signaling is transmitted in step S36, and the second wireless signal is transmitted in step S37.
For theUE U4The second information is transmitted in step S41, the first information is received in step S42, the third signaling is received in step S43, the first wireless signal is received in step S44, the second signaling is transmitted in step S45, the first signaling is received in step S46, and the second wireless signal is received in step S47.
In embodiment 2, X1 bit blocks are used for generating the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks. The second signaling is used to determine the X2 bit blocks, the first information is used to determine configuration information of a receiver of the first information, and the configuration information includes at least one of { transmission mode in, maximum number of mimo output layers supported, maximum number of dl harq processes supported, modulation and coding scheme set supported }, and { buffer capacity of the receiver of the first information, configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
As one embodiment, the second information indicates the cache capacity of the recipient of the first information.
As an embodiment, the third signaling is used to determine scheduling information of the first wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, belonging HARQ process number, MCS, RV }.
As an embodiment, the third signaling is DCI.
As an embodiment, the third signaling is physical layer signaling.
As an embodiment, the second information is transmitted through RRC (Radio Resource Control) signaling.
Example 3
Embodiment 3 illustrates a schematic diagram of a relationship between a first wireless signal and a second wireless signal according to an embodiment of the present application, as shown in fig. 3. In fig. 3, the rectangles filled with oblique lines represent bits occupied by the first mark, the rectangles filled with oblique lines represent bit blocks other than the second radio signal in one first radio signal, the rectangles filled with cross lines represent bit blocks in one second radio signal, and each rectangle without filling represents a baseband processing function that one bit block undergoes when generating the first radio signal or generating the second radio signal.
In embodiment 3, X1 bit blocks are used for generating the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 bit blocks of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1.
As an embodiment, each of the X1 bit blocks is a Code Block (CB).
As an embodiment, each of the X1 bit blocks is a Code Block Group (CBG).
As an embodiment, one bit block of the X1 bit blocks includes no more than K bits, where K is a predefined positive integer; or the K is related to the number of bits included in the transmission block to which the bit block belongs.
As an embodiment, the X1 bit blocks are obtained by dividing (Segmentation) a Transport Block (TB).
As an embodiment, any two bit blocks of the X1 bit blocks include equal number of bits.
As an embodiment, there are two bit blocks in the X1 bit blocks, which comprise different numbers of bits.
As an embodiment, the X1 bit blocks are sequentially subjected to CRC (Cyclic Redundancy Check) addition, Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (configuration) to obtain a first output bit block, and the first output bit block is sequentially subjected to Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) to obtain the first radio signal.
As an embodiment, any two bit blocks of the X2 bit blocks include equal number of bits.
As an embodiment, there are two bit blocks in the X2 bit blocks, which comprise different numbers of bits.
As an embodiment, the X2 bit blocks are sequentially subjected to CRC (Cyclic Redundancy Check) addition, Channel Coding (Channel Coding), Rate Matching (Rate Matching), and Concatenation (configuration) to obtain a second output bit block, and the second output bit block is sequentially subjected to Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation) to obtain the second wireless signal.
As an embodiment, the first radio signal is transmitted through a DL-SCH (Downlink Shared Channel).
As an embodiment, the first wireless signal is transmitted through a PDSCH (Physical Downlink Shared Channel).
As an embodiment, the first Radio signal is transmitted through a NR-PDSCH (New Radio Physical Downlink Shared Channel).
As an embodiment, the second wireless signal is transmitted through a PDSCH (Physical Downlink Shared Channel).
As an embodiment, the second Radio signal is transmitted through a NR-PDSCH (New Radio Physical Downlink Shared Channel).
As an embodiment, the first wireless signal and the second wireless signal belong to the same HARQ (Hybrid Automatic Repeat request) process.
As an embodiment, the first wireless signal is an initial transmission of an HARQ process.
As an embodiment, the second wireless signal is a retransmission of one HARQ process.
As an embodiment, the first wireless signal is a retransmission of one HARQ process.
Example 4
Embodiment 4 illustrates a schematic diagram of X2 buffer sizes according to an embodiment of the present application, as shown in fig. 4. In fig. 4, the horizontal axis represents time, the bold-lined boxes with no padding represent the total buffer for one bit block, the slashed-padded rectangles represent the buffer occupied for one bit block when receiving the first radio signal, and the cross-lined padded rectangles represent the buffer occupied for one bit block when receiving the second radio signal.
In embodiment 4, X1 bit blocks are used for generating the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; the X2 is used to determine the X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
As an embodiment, the X2 buffers with corresponding buffer sizes are reserved for the X2 bit blocks respectively.
As one embodiment, the X2 buffer sizes are for the second wireless signal only.
As one embodiment, the X2 buffer sizes are for all wireless signals transmitting the X2 bit block.
As an embodiment, any two of the X2 cache sizes are the same.
As one embodiment, there are two cache sizes of the X2 cache sizes that are different.
As an example, the buffer size refers to the number of bits in Soft buffer bits (Soft buffer bits).
For one embodiment, the X2 is used by the user equipment to determine the X2 buffer sizes.
Example 5
Embodiment 5 illustrates a schematic diagram of a target bit block according to an embodiment of the present application, as shown in fig. 5. In fig. 5, a Circular Buffer (Circular Buffer) is represented by a Circular filled with diagonal lines, each of the truncated straight lines in the Circular Buffer represents a starting point indicated by a Redundancy Version (RV), a bit in the Circular Buffer represented by a solid arrow curve is an output of a bit block in the first radio signal after channel coding, and a bit in the Circular Buffer represented by a dashed arrow curve is an output of a bit block in the second radio signal after channel coding.
In embodiment 5, the buffer size corresponding to a first block of bits is used to determine the number of bits in a target block of bits, the target block of bits comprising incremental redundancy bits compared to the channel coded output bits of the first block of bits in a second wireless signal, the target block of bits comprising a non-negative integer number of bits, a redundancy version being used to determine the position of the target block of bits in the channel coded output bits of the first block of bits.
As an embodiment, the channel coding is LDPC (Low Density Parity Check Code) coding.
In one embodiment, the channel coding is Turbo coding.
As an embodiment, the channel coding is Convolutional coding (Convolutional code).
As an embodiment, the channel coding is a Polar code.
For one embodiment, the Incremental Redundancy (Incremental Redundancy) Bits include Parity Bits.
As one embodiment, the Incremental Redundancy (Incremental Redundancy) Bits include check Bits (Parity Bits) and information Bits.
As one embodiment, the incremental redundancy bits are an incremental output based on an existing output of the channel coding.
As an embodiment, the Redundancy Version (RV) indicates a position of a start bit of the target bit block in channel-coded output bits of the first bit block.
As an embodiment, the redundancy version indicates a position of a start bit of the target block of bits in a Circular Buffer, which is used to determine a position of the first block of bits in channel coded output bits.
As an embodiment, the target bit block is composed of bits sequentially read from a start bit in a circular buffer indicated by the redundancy version according to rate matching.
Example 6
Embodiment 6 illustrates a schematic diagram of configuration information of a recipient of first information of an embodiment of the present application, as shown in fig. 6. In FIG. 6, N issoftIs the buffer capacity, K, of the recipient of the first informationCIs and NsoftA related value, or KCIs the number of carriers (carriers) configured, KMIMOIs the maximum number of MIMO layers, M, supported by the receiver of the first informationDL_HARQIs the maximum number of downlink HARQ processes supported by the receiver of the first information.
In embodiment 6, X1 bit blocks are used for generating the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks. { buffer capacity of a receiver of the first information, configuration information of the receiver of the first information } used to determine the sum of the X2 buffer sizes, the configuration information including at least one of { transmission mode in, maximum number of mimo layers supported, maximum number of dl harq processes supported, modulation and coding scheme set supported }.
As an embodiment, the Transmission Mode (TM) includes a diversity-based Transmission Mode and a Beamforming-based Transmission Mode.
As an embodiment, the Transmission Mode (TM) includes a single antenna Transmission Mode.
As an embodiment, the number of maximum Multiple Input Multiple Output (MIMO) layers includes at least one of {1,2,4,8,16 }.
For one embodiment, the maximum number of mimo layers includes a layer of analog beams and a layer of digital beams.
As an embodiment, the buffer capacity of the receiver of the first information is a number of Bits in Soft Channel Bits (Soft Channel Bits) of the receiver of the first information.
As an embodiment, the capability information of the receiver of the first information includes the cache capacity information of the receiver of the first information.
As one embodiment, the X2 buffer sizes are for only the second wireless signal, the sum N of the X2 buffer sizesIRObtained by the following formula:
Figure PCTCN2017084137-APPB-000004
wherein N issoftIs the buffer capacity, K, of the recipient of said first informationCIs and NsoftA related value, or KCIs the number of carriers (carriers) configured, KMIMOIs the maximum number of MIMO layers, M, supported by the receiver of the first informationDL_HARQIs the maximum number of downlink HARQ processes supported by the receiver of the first information, MlimitIs a predefined value (e.g. 8) or is configurable, NinitialIs the total number of bits of the output of the X1 bit block after being channel coded for the wireless signal preceding the second wireless signal.
As an example, the X2Sum of buffer sizes NIRObtained by the following formula:
Figure PCTCN2017084137-APPB-000005
wherein N issoftIs the buffer capacity, K, of the recipient of said first informationCIs and NsoftA related value, or KCIs the number of carriers (carriers) configured, KMIMOIs the maximum number of MIMO layers, M, supported by the receiver of the first informationDL_HARQIs the maximum number of downlink HARQ processes supported by the receiver of the first information, MlimitIs a predefined value (e.g. 8) or is configurable, Ninitial_remainIs the total number of bits of the output of the X1 bit blocks other than the X2 bit blocks after being channel-coded for the wireless signal preceding the second wireless signal.
As one embodiment, the X2 cache sizes are all equal, and any cache size N in the X2 cache sizescbIs obtained by the following formula:
wherein N isIRIs the sum of the X2 buffer sizes, KwIs the length of the circular buffer.
Example 7
Embodiment 7 illustrates a block diagram of a processing device in a user equipment according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the ue processing apparatus 100 mainly comprises a first processing module 101, a first receiving module 102 and a second receiving module 103.
In embodiment 7, the first processing module 101 receives a first wireless signal; the first receiving module 102 receives a first signaling; the second receiving module 103 receives a second wireless signal; wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
As an embodiment, a first bit block is one bit block of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine a number of bits in a target bit block, the target bit block includes incremental redundancy bits compared to output bits of the first bit block that were channel coded in the second wireless signal and output bits of the first bit block that were channel coded in the first wireless signal, and the target bit block includes a non-negative integer number of bits.
As an embodiment, the first processing module 101 further sends a second signaling, and the second signaling is used for determining the X2 bit block.
As an embodiment, the first signaling is used to determine the X2 bit block.
As an embodiment, the first signaling is used to determine scheduling information of the second wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in output bits of the first bit block that have undergone channel coding.
As an embodiment, the first processing module 101 further receives first information, where the first information is used to determine configuration information of a receiver of the first information, and the configuration information includes at least one of { the transmission mode, the maximum number of supported mimo layers, the maximum number of supported dl harq processes, the supported mcs set }, and { the buffer capacity of the receiver of the first information, the configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
As an embodiment, the first signaling indicates at least the latter of the X2, the X2 buffer sizes.
Example 8
Embodiment 8 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 8. In fig. 8, the base station processing apparatus 200 is mainly composed of a second processing module 201, a first transmitting module 202 and a second transmitting module 203.
In embodiment 8, the second processing module 201 transmits a first wireless signal; the first sending module 202 sends a first signaling; the second sending module 203 sends a second wireless signal; wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
As an embodiment, a first bit block is one bit block of the X2 bit blocks, a buffer size corresponding to the first bit block of the X2 buffer sizes is used to determine a number of bits in a target bit block, the target bit block includes incremental redundancy bits compared to output bits of the first bit block that were channel coded in the second wireless signal and output bits of the first bit block that were channel coded in the first wireless signal, and the target bit block includes a non-negative integer number of bits.
As an embodiment, the second processing module further receives second signaling, the second signaling being used to determine the X2 bit block.
As an embodiment, the first signaling is used to determine the X2 bit block.
As an embodiment, the first signaling is used to determine scheduling information of the second wireless signal, where the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, and redundancy version }, and the redundancy version is used to determine a position of the target bit block in output bits of the first bit block that have undergone channel coding.
As an embodiment, the second processing module further sends first information, where the first information is used to determine configuration information of a receiver of the first information, and the configuration information includes at least one of { transmission mode in which the first information is located, maximum number of mimo output layers supported, maximum number of dl harq processes supported, modulation and coding scheme set supported }, and { buffer capacity of the receiver of the first information, configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
As an embodiment, the first signaling indicates at least the latter of the X2, the X2 buffer sizes.
Example 9
Embodiment 9 illustrates a schematic diagram of an example of a base station and user equipment according to an embodiment of the present application, as shown in fig. 9. In fig. 9, a block diagram of a base station 910 and a user equipment 950 in communication is illustrated. Upper layer packets from the core network are provided to a controller/processor 940, and the controller/processor 940 performs the functions of layer two, including header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, etc., as well as radio resource allocation and scheduling for the user equipment 950 based on various priority metrics, while also being responsible for HARQ operations of layer two, retransmission of lost packets, and signaling to the user equipment 950, while also being responsible for HARQ configuration of the physical layer, Soft Buffer (Soft Buffer) management in buffers 930. Transmit processor 915 performs various signal processing functions for the physical layer including coding, interleaving, scrambling, CRC addition, modulation, rate matching, resource mapping, baseband signal generation, and so on. Each spatial stream is transmitted to a different antenna 920 via a separate transmitter 916. At user equipment 950, each receiver 956 receives a signal through its respective antenna 960. Each receiver 956 recovers information modulated onto a radio frequency carrier and provides the information to a receive processor 952. The receive processor 952 performs various signal processing functions of the physical layer, including decoding, deinterleaving, descrambling, CRC removal, demodulation, resource demapping, baseband signal generation, and the like. The data and control signals are then provided to a controller/processor 990, and the controller/processor 990 performs layer two functions including header decompression, decryption, packet concatenation and reordering, demultiplexing between logical and transport channels, etc., while also being responsible for layer two HARQ operations, re-reception of lost packets, and signaling to the base station apparatus 910, while also being responsible for HARQ configuration of the physical layer, Soft Buffer (Soft Buffer) management in the Buffer 980. According to the signaling indication of the base station apparatus 910, or according to the number of the coding blocks scheduled by the base station apparatus 910 during HARQ retransmission, the controller/processor 990 allocates a soft buffer in the buffer 980 for each coding block, and then the receiving processor 952 performs channel decoding and rate matching for each coding block according to the soft buffer allocated by the controller/processor 990, thereby completing incremental redundancy decoding or combined decoding of retransmission and initial transmission.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the application comprises but is not limited to a mobile phone, a tablet computer, a notebook, a network card, a low-power consumption device, an eMTC device, an NB-IoT device, an unmanned aerial vehicle, a remote control plane, a vehicle-mounted communication device and other wireless communication devices. The base station or the network side device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (16)

  1. A method in a user equipment for wireless communication, comprising:
    -receiving a first wireless signal;
    -receiving a first signaling;
    -receiving a second wireless signal;
    wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
  2. The method of claim 1, wherein a first block of bits is one block of bits of the X2 blocks of bits, wherein a buffer size corresponding to the first block of bits of the X2 buffer sizes is used to determine a number of bits in a target block of bits, wherein the target block of bits comprises incremental redundancy bits compared to output bits of the first block of bits channel coded in the second wireless signal and output bits of the first block of bits channel coded in the first wireless signal, and wherein the target block of bits comprises a non-negative integer number of bits.
  3. The method of any one of claims 1 or 2, further comprising:
    -transmitting second signaling;
    wherein the second signaling is used to determine the X2 blocks of bits.
  4. The method according to any of claims 1 or 2, wherein said first signaling is used for determining said X2 said bit blocks.
  5. The method according to any of claims 2, 3 or 4, wherein the first signaling is used to determine scheduling information of the second wireless signal, the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated HARQ process number, modulation coding scheme, redundancy version }, and the redundancy version is used to determine the position of the target bit block in the output bits of the first bit block that have undergone channel coding.
  6. The method of any of claims 1 to 5, further comprising:
    -receiving first information;
    wherein the first information is used to determine configuration information of a receiver of the first information, the configuration information including at least one of { the transmission mode, the maximum number of mimo layers supported, the maximum number of dl harq processes supported, and the modulation and coding scheme set supported }, { the buffer capacity of the receiver of the first information, the configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
  7. The method according to any of claims 1 to 6, wherein said first signaling indicates at least the latter of { said X2, said X2 buffer sizes }.
  8. A method in a base station device for wireless communication, comprising:
    -transmitting a first wireless signal;
    -transmitting first signalling;
    -transmitting a second wireless signal;
    wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
  9. The method of claim 8, wherein a first block of bits is one block of bits of the X2 blocks of bits, wherein a buffer size corresponding to the first block of bits of the X2 buffer sizes is used to determine a number of bits in a target block of bits, wherein the target block of bits comprises incremental redundancy bits compared to output bits of the first block of bits channel coded in the second wireless signal and output bits of the first block of bits channel coded in the first wireless signal, and wherein the target block of bits comprises a non-negative integer number of bits.
  10. The method of any one of claims 8 or 9, further comprising:
    -receiving second signaling;
    wherein the second signaling is used to determine the X2 blocks of bits.
  11. The method according to any of claims 8 or 9, wherein said first signaling is used for determining said X2 said bit blocks.
  12. The method according to any of claims 9, 10 or 11, wherein the first signaling is used to determine scheduling information of the second wireless signal, the scheduling information includes at least one of { occupied time domain resource, occupied frequency domain resource, affiliated harq process number, modulation coding scheme, redundancy version }, and the redundancy version is used to determine a position of the target bit block in the output bits of the first bit block that have undergone channel coding.
  13. The method of any of claims 8 to 12, further comprising:
    -transmitting the first information;
    wherein the first information is used to determine configuration information of a receiver of the first information, the configuration information including at least one of { the transmission mode, the maximum number of mimo layers supported, the maximum number of dl harq processes supported, and the modulation and coding scheme set supported }, { the buffer capacity of the receiver of the first information, the configuration information of the receiver of the first information } is used to determine a sum of the X2 buffer sizes.
  14. The method according to any of the claims 8 to 13, wherein said first signaling indicates at least the latter of { said X2, said X2 buffer sizes }.
  15. A user device for wireless communication, comprising:
    -a first processing module receiving a first wireless signal;
    -a first receiving module receiving a first signaling;
    -a second receiving module receiving a second wireless signal;
    wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
  16. A base station apparatus for wireless communication, comprising:
    -a second processing module to transmit a first wireless signal;
    -a first sending module to send a first signaling;
    -a second transmitting module for transmitting a second wireless signal;
    wherein X1 bit blocks are used to generate the first radio signal, the X1 is a positive integer greater than 1, each of the X1 bit blocks comprises a positive integer number of bits, the X1 bit blocks belong to the same transport block; only X2 of the X1 bit blocks are used to generate the second wireless signal, the X2 being a positive integer less than the X1; { the X2, the first signaling } is used to determine X2 buffer sizes, the X2 buffer sizes corresponding one-to-one to the X2 bit blocks.
CN201780088317.7A 2017-05-12 2017-05-12 Method and device in user equipment and base station supporting hybrid automatic repeat request Active CN110463094B (en)

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