WO2018202194A1 - 信息传输方法及装置 - Google Patents

信息传输方法及装置 Download PDF

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Publication number
WO2018202194A1
WO2018202194A1 PCT/CN2018/085795 CN2018085795W WO2018202194A1 WO 2018202194 A1 WO2018202194 A1 WO 2018202194A1 CN 2018085795 W CN2018085795 W CN 2018085795W WO 2018202194 A1 WO2018202194 A1 WO 2018202194A1
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WO
WIPO (PCT)
Prior art keywords
traffic channel
control information
symbol
information
downlink
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Application number
PCT/CN2018/085795
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English (en)
French (fr)
Inventor
石靖
夏树强
左志松
陈冬雷
Original Assignee
中兴通讯股份有限公司
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Publication of WO2018202194A1 publication Critical patent/WO2018202194A1/zh

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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
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present disclosure relates to information transmission technologies, for example, to an information transmission method and apparatus.
  • the next-generation mobile communication technology the 5th Generation mobile communication technology (5G) has higher and higher technical specifications.
  • next-generation mobile communication systems should have features such as ultra-high speed, ultra-high capacity, ultra-high reliability, and ultra-low-latency transmission characteristics.
  • DCI downlink control information
  • feedback information of an uplink traffic channel is a problem to be solved.
  • an embodiment of the present application provides an information transmission method and apparatus.
  • control information by using a downlink traffic channel, where the control information includes at least one of the following:
  • Downlink control information and feedback information of the uplink traffic channel are Downlink control information and feedback information of the uplink traffic channel.
  • a transmission unit configured to transmit control information by using a downlink traffic channel, where the control information includes at least one of the following:
  • Downlink control information and feedback information of the uplink traffic channel are Downlink control information and feedback information of the uplink traffic channel.
  • the embodiment of the present application provides a storage medium, where the storage medium includes a stored program, where the device where the storage medium is located is controlled to execute the information transmission method described above when the program is running.
  • the information transmission method and device of the embodiment of the present invention transmits control information through a downlink traffic channel, where the control information includes at least one of the following information: downlink control information, and feedback information of an uplink traffic channel.
  • the information transmission method and device of the embodiment of the present invention can implement downlink control information and feedback information of an uplink traffic channel through a downlink traffic channel, and carry downlink control information and feedback information of an uplink traffic channel by selecting different resource locations in the downlink traffic channel. Therefore, the control information can be quickly demodulated, and the performance requirement of the downlink control information is ensured, and the introduction of an additional downlink channel is avoided, the control overhead is saved, and the spectrum efficiency of the system is improved.
  • FIG. 1 is a schematic flowchart of an information transmission method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of different control information in the same symbol according to another embodiment of the present application.
  • FIG. 5 is a schematic diagram of different control information in different symbols according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of different control information in different symbols according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of different control information in different symbols according to still another embodiment of the present application.
  • FIG. 8 is a schematic diagram of control information located on a PDSCH according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of control information located on a PDSCH according to another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application.
  • one candidate scheme uses two levels of downlink control information.
  • the content of the first-level DCI includes information directly related to the demodulation traffic channel, such as resource allocation, modulation and coding, and the like; and the content of the second-level DCI includes information that is not directly related to the demodulation traffic channel.
  • ACK feedback Acknowledgement
  • NACK Non Acknowledgement
  • FIG. 1 is a schematic flowchart of an information transmission method according to an embodiment of the present application. As shown in FIG. 1, the information transmission method includes the following steps:
  • Step 101 Transmit control information by using a downlink traffic channel, where the control information includes at least one of: downlink control information and feedback information of an uplink traffic channel.
  • the resource occupation manner of the control information in the downlink traffic channel is mode one and mode two.
  • Manner 1 The different types of information in the control information are located in the same symbol in the downlink traffic channel, where the control information is located in a first symbol of the downlink traffic channel or from a first symbol of the downlink traffic channel Start to occupy.
  • the downlink traffic channel carries a Demodulation Reference Signal (DMRS).
  • DMRS Demodulation Reference Signal
  • the control information is located in the first symbol of the downlink traffic channel or is occupied by the first symbol of the downlink traffic channel, and includes:
  • the feedback information of the uplink traffic channel is located at least on both sides of the DMRS in the first symbol of the downlink traffic channel, and the downlink control information is located on both sides of the feedback information of the uplink traffic channel, where the DMRS is located at the The first symbol of the downlink traffic channel, or the first symbol of the downlink traffic channel and the symbol after the first symbol; or
  • the feedback information of the uplink traffic channel is located at the same location as the frequency domain of the DMRS, the downlink control information is located on both sides of the feedback information of the uplink traffic channel, and the DMRS is located on the downlink traffic channel.
  • the first symbol or,
  • the feedback information of the uplink traffic channel is located in the first symbol of the downlink traffic channel and is sequentially occupied from a resource element (Resource Element, RE) having the lowest or highest frequency domain, and the downlink control information is from the uplink traffic channel.
  • the feedback information is then sequentially occupied, wherein the resource in which the demodulation reference signal is located is not occupied if the demodulation reference signal is encountered.
  • control information includes the downlink control information
  • the control information is located at the first symbol of the downlink traffic channel or is occupied by the first symbol of the downlink traffic channel, and includes:
  • the downlink control information is located at least on the two sides of the DMRS in the first symbol of the downlink traffic channel, where the DMRS is located in the first symbol of the downlink traffic channel, or the DMRS is located at the beginning of the downlink traffic channel. Symbols and symbols after the first symbol; or,
  • the downlink control information is located in the first symbol of the downlink traffic channel and is sequentially occupied from the lowest or highest frequency domain of the frequency domain, wherein the resource in which the demodulation reference signal is located is not occupied if the demodulation reference signal is encountered.
  • the downlink traffic channel carries the DMRS; the different types of information in the control information are located in different symbols in the downlink traffic channel, including:
  • the downlink control information is located in the first symbol of the downlink traffic channel or is occupied by the first symbol of the downlink traffic channel, and the feedback information of the uplink traffic channel is located after the first symbol of the downlink traffic channel. And located at the same location as the frequency domain of the DMRS; or,
  • the downlink control information is located in the first symbol of the downlink traffic channel, or is occupied from the first symbol of the downlink traffic channel, and the feedback information of the uplink traffic channel is located at least in the DMRS of the symbol that first includes the DMRS. On both sides, the DMRS is located after the first symbol of the downlink traffic channel; or
  • the downlink control information and the feedback information of the uplink traffic channel are sequentially occupied from the lowest or highest RE of the frequency domain of the respective symbol, wherein the demodulation reference signal is not occupied if the demodulation reference signal is encountered. Resources.
  • the transmission manner of the control information includes at least one of the following: the control information is transmitted by using a single layer, where the control information is used.
  • the port used is one of the ports used by the downlink traffic channel; or,
  • the control information is transmitted by using a single codeword, and the codeword used by the information is determined to be a codeword having a highest modulation and coding scheme (MCS) among the plurality of codewords, and the control information is used.
  • MCS modulation and coding scheme
  • the control information is transmitted by using multiple layers or multiple codewords, where the control information includes the downlink control information and does not include feedback information of the uplink traffic channel, and is transmitted through each layer or each codeword. Part of the downlink control information; or
  • control information is transmitted using multiple layers or multiple codewords, wherein the control information transmits the same information on all layers or all codewords;
  • the control information is transmitted using multiple layers or multiple codewords, wherein the control information and the downlink data are transmitted using different layers or different codewords, respectively.
  • the port used by the control information is one of the ports used by the downlink traffic channel, and the port used by the control information is the smallest one of the plurality of ports used by the downlink traffic channel. port.
  • the transmitting, by using each layer, the information about the downlink control information includes: carrying different subtype information in the downlink control information in different layers for transmission.
  • the subtype information includes at least one of the following: Hybird Automatic Repeat Reques (HARQ) information, timing information, power control information, and resource indication information of an uplink control channel.
  • HARQ Hybird Automatic Repeat Reques
  • the HARQ information includes: a New Data Indicator (NDI), an MCS, a Redundancy Version (RV), and a process number.
  • the timing information includes: symbol level timing information, and sub-frame/slot/mini-slot level timing slots.
  • the feedback information of the uplink service channel further includes: a HARQ process ID.
  • the downlink traffic channel carries the HARQ; where, if the control information includes the feedback information of the uplink traffic channel, the control information is located at the resource location of the downlink traffic channel, including:
  • the feedback information of the uplink traffic channel is located at least on both sides of the DMRS in the first symbol, where the DMRS is located on the first symbol of the downlink traffic channel region or the first symbol of the DMRS is located in the downlink traffic channel And the symbol after the first symbol; or,
  • the feedback information of the uplink traffic channel is located in the first symbol of the downlink traffic channel and is sequentially occupied from the lowest or highest frequency domain of the frequency domain, where the demodulation reference signal is not occupied if the demodulation reference signal is encountered. Resources; or,
  • the feedback information of the uplink traffic channel is located at the same location as the frequency domain in which the DMRS is located.
  • the HARQ-ACK information and the HARQ process ID are transmitted as the same type of control information.
  • the HARQ-ACK information carries the process number information that is smaller than the maximum number of processes of the eMBB.
  • the resource occupation manners of different sub-type information include:
  • Different subtype information occupies different locations in the same symbol; or, different subtype information occupies different symbols.
  • the downlink control information is the second-level downlink control information
  • the feedback information of the uplink traffic channel is the HARQ feedback information of the uplink traffic channel (for example, HARQ-ACK information).
  • control information the second level of DCI and HARQ-ACK information may be referred to as control information.
  • the control information is transmitted through the downlink traffic channel, where the downlink traffic channel refers to a Physical Downlink Shared Channel (PDSCH).
  • the control information includes at least one of: downlink control information and feedback information of an uplink traffic channel.
  • the downlink control information refers to the second-level DCI
  • the uplink traffic channel refers to a physical uplink shared channel (PUSCH)
  • the feedback information of the uplink traffic channel refers to ACK/NACK information fed back to the PUSCH.
  • the base station scheduling terminal (User Equipment, UE) transmits downlink data, and adopts two levels of DCI, wherein the second level DCI is located in the PDSCH.
  • the PUSCH feedback ACK/NACK information ie, HARQ-ACK information
  • the two kinds of information occupy resources in the PDSCH as shown in FIG. 2.
  • the control information (including the second level DCI and HARQ-ACK information) is located at the first symbol of the PDSCH or is occupied from the first symbol of the PDSCH.
  • the DMRS is located at the first symbol of the PDSCH.
  • the HARQ-ACK is located on both sides of the DMRS, and the second-level DCI (ie, Stage-2 DCI) is located on both sides of the HARQ-ACK. Occupied from the lowest frequency domain of the first symbol of the PDSCH.
  • the number of occupied HARQ-ACKs is X, and the value of X may be fixed, or determined according to the MCS of the PDSCH and the resource usage offset parameter of the upper layer configuration.
  • BPSK Binary Phase Shift Keying
  • the number of REs occupied by the second-level DCI is Y, and the value of Y may be fixed, or the second-level DCI may occupy different numbers of Y according to different number of bits (eg, B1, B2, B3, and B4 represent 4 different bit numbers).
  • RE eg, Y1, Y2, Y3, and Y4 represent 4 different values
  • the number of bits of the second level DCI may be fixed or indicated by the first level or blindly checked.
  • the second-level DCI is independently coded, and a Physical Downlink Control Channel (PDCCH) coding mode is used.
  • a Physical Downlink Control Channel (PDCCH) coding mode is used.
  • the CRC length is the same as the CRC length used by the PDCCH, or different CRC lengths are selected according to the number of bits of the second-level DCI (hereinafter referred to as DCI size).
  • DCI size the number of bits of the second-level DCI
  • the CRC is not used when the small DCI size is used.
  • non-independent encoding is employed for the second level of DCI, encoded with the PDSCH. For example, when the URL is LCLC, the target block error rate (BLER) of the PDSCH and the PDCCH are both 99.9%.
  • the PDSCH matches the second level DCI rate.
  • independent encoding is employed for HARQ-ACK, or sequence transmission is employed.
  • the HARQ-ACK punctured the corresponding RE of the PDSCH at a fixed location.
  • the position of the Y RE resources occupied by the second-level DCI is unchanged, that is, the Y RE resources are occupied by the two sides of the X RE resources on both sides of the DMRS, that is, when there is no HARQ-ACK information,
  • the PDSCH resource occupies X REs on both sides of the DMRS and is not punctured.
  • the terminal When receiving the PDSCH channel, the terminal simultaneously receives the second-level DCI and the previously transmitted PUSCH feedback information at the determined resource location.
  • different types of information in the control information are located in the same symbol in the downlink traffic channel or in different symbols in the downlink traffic channel.
  • Other ways of occupying resources in this embodiment are shown in FIGS. 3 to 7.
  • 2 to 4 show that different types of control information are located in the same Orthogonal Frequency Division Multiplexing (OFDM) symbol
  • FIG. 5 to FIG. 7 are different types of control information located in different OFDM symbols.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG. 3 is a schematic diagram of two different control information provided by an embodiment in the same symbol.
  • the HARQ-ACK is located in the frequency domain of the DMRS, and the second-level DCI is located on both sides of the HARQ-ACK.
  • the DMRS is not on the first symbol of the PDSCH (that is, on the non-first symbol of the PDSCH).
  • the control information is occupied from the lowest frequency domain of the first symbol of the PDSCH, the number of REs occupied by the HARQ-ACK is X, and the number of REs occupied by the second-level DCI is Y.
  • X and Y have the same values as above.
  • FIG. 4 is a three schematic diagram of different control information provided by another embodiment in the same symbol.
  • the HARQ-ACK is located in front of the first symbol X REs (if there is a DMRS, X is the number after the pilot RE is deducted, that is, the symbol of the DMRS may be the first symbol in the PDSCH or the first one. Symbol), the second-level DCI is occupied from the X+1th symbol, occupying Y REs.
  • X and Y have the same values as above.
  • the distinguishing symbols are placed with different types of control information as shown in Figures 5-7.
  • different delay requirements can be differentiated for different types of control information. Ensure different performance requirements for different control information.
  • the following figure 5 to FIG. 7 treats the second-level DCI with a preferred delay, and the sub-optimal delay processes the HARQ-ACK as an example, that is, the symbol position of the HARQ-ACK is located after the symbol position of the second-level DCI.
  • the HARQ-ACK may be processed by a delay
  • the second-level DCI is processed by the sub-optimal delay, that is, the symbol position of the second-level DCI is located after the symbol position where the HARQ-ACK is located.
  • FIG. 5 is a schematic diagram of three different control information provided by different embodiments in different symbols.
  • the HARQ-ACK is located in the same frequency domain position of the DMRS.
  • the second-level DCI is occupied from the lowest frequency domain of the PDSCH
  • the number of HARs occupied by the HARQ-ACK is X
  • the number of REs occupied by the second-level DCI is Y.
  • X and Y have the same values as above. That is, the symbol of the DMRS at this time may be the first symbol or the first symbol in the PDSCH.
  • FIG. 6 is two schematic diagrams of different control information provided by another embodiment in different symbols. As shown in FIG. 6, it is preferable to process the second level DCI and suboptimally process the HARQ-ACK.
  • the HARQ-ACK is located on both sides of the DMRS. At this time, the second-level DCI is occupied from the lowest frequency domain of the PDSCH, the number of REs occupied by the HARQ-ACK is X, and the number of REs occupied by the second-level DCI is Y. X and Y have the same values as above. At this time, the DMRS is not on the first symbol of the PDSCH.
  • FIG. 7 is a schematic diagram showing four different schematic information of different control information provided by another embodiment.
  • the second-level DCI it is preferable to process the second-level DCI and suboptimally process the HARQ-ACK. Occupied from the lowest RE of the respective symbol frequency domain.
  • the HARQ-ACK is located in front of the X REs of the symbol (if there is DMRS, X is the number after the pilot RE is deducted), and the second-level DCI is located in front of the symbol Y (if there is DMRS, Y is deducted from the pilot RE) After the number).
  • the number of REs occupied by the HARQ-ACK is X
  • the number of REs occupied by the second-level DCI is Y.
  • X and Y have the same values as above. That is, the symbol of the DMRS at this time may be the first symbol or the first symbol in the PDSCH.
  • the information transmission method of the present embodiment can implement downlink control information by using a downlink traffic channel, and different types of downlink control information are carried by different resource locations in the downlink traffic channel, so that the control information can be quickly demodulated or Different types of control information distinguish different delay requirements, and ensure the performance requirements of different types of downlink control information, avoid introducing additional downlink channels, save control overhead, and improve system spectrum efficiency.
  • control information is transmitted through the downlink traffic channel, where the control information includes at least one of the following: the downlink control information and the feedback information of the uplink traffic channel.
  • the downlink control information refers to the second-level DCI
  • the feedback information of the uplink traffic channel refers to the ACK/NACK information fed back to the PUSCH.
  • the base station schedules the UE to transmit downlink data, and adopts two levels of DCI, wherein the second level DCI is located in the downlink traffic channel PDSCH.
  • FIG. 8 is a schematic diagram of three types of control information provided by an embodiment on a PDSCH.
  • the second-level DCI occupies resources in the PDSCH as shown in FIG. 8, where the second-level DCI is located in the first symbol of the PDSCH or is occupied from the first symbol of the PDSCH. At this time, the second-level DCI is sequentially occupied or located on both sides of the DMRS from the lowest of the first symbol frequency domain of the PDSCH. at this time.
  • the number of REs occupied by the second-level DCI is Y, and the value of Y may be fixed, or the second-level DCI may occupy different numbers of Y according to different number of bits (eg, B1, B2, B3, and B4 represent 4 different bit numbers).
  • RE eg, Y1, Y2, Y3, and Y4 represent 4 different values
  • the number of bits of the second level DCI may be fixed or indicated by the first level or blindly checked.
  • the second-level DCI uses a single layer transmission, and the port used to determine the information is one of the ports used by the PDSCH. For example, a port with the smallest index in multiple ports of the PDSCH can be used.
  • the second level DCI uses multiple layers of transmission, and each layer transmits partial information of the second level DCI. For example, different subtype information can be transmitted at different layers.
  • the second-level DCI occupancy RE is still an independent RE, and the occupied RE number is reduced.
  • the subtype information includes at least one of the following: HARQ information (NDI+MCS+RV+process number), timing information (symbol level timing and subframe/slot/mini-slot level timing), power control information, and PUCCH resource indication information. Wait.
  • the second level DCI uses multiple layers of transmission and uses separate layers for transmission with downstream data. At this time, the second-level DCI occupies the RE and the downlink data sharing, and the occupied RE number does not change.
  • the resource occupation scheme is similar to the two information occupation resources in the foregoing embodiment.
  • the resource occupation scheme is similar to the two information occupation resources in the foregoing embodiment.
  • the resource occupation scheme is similar to the two information occupation resources in the foregoing embodiment.
  • there are more than two kinds of subtype information distinguish more different positions in the same symbol, or more different positions in the symbol.
  • independent coding is employed for the second level DCI, using a PDCCH coding scheme.
  • a separate CRC can be used, the CRC length is the same as the CRC length used by the PDCCH, or different CRC lengths are selected according to the DCI size, and the CRC is not used when considering a smaller DCI size; or the non-independent coding is used for the second-level DCI, and the PDSCH Coding together.
  • the PDSCH and the PDCCH target BLER are the same at the URLLC, they are both 99.9%.
  • the PDSCH matches the second level DCI rate.
  • the terminal when the terminal receives the PDSCH channel, it simultaneously receives the second level DCI at the determined resource location.
  • the information transmission method of the present embodiment can implement downlink control information by using a downlink traffic channel, and carry downlink control information by selecting different resource locations in the downlink traffic channel, so that the control information can be quickly demodulated, and the downlink control is ensured.
  • the performance requirements of the information avoid introducing additional downlink channels, saving control overhead and improving system spectrum efficiency.
  • the control information is transmitted through the downlink traffic channel, where the control information includes at least one of the following: the downlink control information and the feedback information of the uplink traffic channel.
  • the downlink control information refers to the second-level DCI
  • the uplink traffic channel refers to the PUSCH
  • the feedback information of the uplink traffic channel refers to the ACK/NACK information that is fed back to the PUSCH.
  • FIG. 9 is a schematic diagram of four types of control information provided by the PDSCH in another embodiment.
  • the HARQ-ACK occupies resources in the PDSCH as shown in FIG. 9, where the HARQ-ACK is located in the first symbol or the non-first symbol of the PDSCH. At this time, the HARQ-ACK occupies resources from the first symbol or the non-first symbol of the PDSCH or is located on both sides of the DMRS or in the frequency domain where the DMRS is located.
  • the number of occupied HARQ-ACKs is X, and the value of X may be fixed, or determined according to the MCS of the PDSCH and the resource usage offset parameter of the upper layer configuration.
  • HARQ-ACK information for example, it may be a fixed physical resource block (PRB) position in the PDSCH.
  • PRB physical resource block
  • M is a positive integer greater than one.
  • the HARQ-ACK for PUSCH includes process number information in addition to ACK/NACK information to support uplink asynchronous HARQ.
  • the HARQ-ACK and the HARQ process ID are transmitted as the same type of control information at this time, or may be used as two types of control information transmission similar to the two types of information in the embodiment of FIG. 1-7. Resources.
  • the difference is that the process number information that is less than the maximum number of processes of the eMBB is carried to support the uplink asynchronous HARQ; or for the URLLC, the fast transmission is performed, and the HARQ-ACK is still not carried with the process number information. , transmitted in a synchronous manner.
  • independent encoding is employed for HARQ-ACK, or sequence transmission is employed.
  • the HARQ-ACK punctured the corresponding RE of the PDSCH at a fixed location.
  • FIG. 10 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present application. As shown in FIG. 10, the information transmission apparatus includes:
  • the transmission unit 1001 is configured to transmit control information by using a downlink traffic channel, where the control information includes at least one of the following:
  • Downlink control information and feedback information of the uplink traffic channel are Downlink control information and feedback information of the uplink traffic channel.
  • the device further includes: an encapsulating unit 1002, configured to carry the control information in a downlink traffic channel, where a resource occupation manner of the control information in the downlink traffic channel is:
  • control information located in the same symbol in the downlink traffic channel, where the control information is located in the first symbol of the downlink traffic channel or starts from the first symbol of the downlink traffic channel; or,
  • Different types of information in the control information are located in different symbols in the downlink traffic channel.
  • the downlink traffic channel carries a demodulation reference signal; wherein, if the control information includes downlink control information and feedback information of an uplink traffic channel, the control information is located in the downlink traffic channel.
  • the first symbol or the first symbol from the downlink traffic channel begins to occupy, including:
  • the feedback information of the uplink traffic channel is located at least on both sides of the demodulation reference signal in the first symbol of the downlink traffic channel, and the downlink control information is located on both sides of the feedback information of the uplink traffic channel, where the Demodulating a reference signal located at a first symbol of the downlink traffic channel, or the demodulation reference signal is located at a first symbol of the downlink traffic channel and a symbol following the first symbol; or
  • the feedback information of the uplink traffic channel is located at the same location as the frequency domain in which the demodulation reference signal is located, the downlink control information is located on both sides of the feedback information of the uplink traffic channel, and the demodulation reference signal is located at the location Said that the downlink traffic channel is not the first symbol; or,
  • the feedback information of the uplink traffic channel is located in the first symbol of the downlink traffic channel and is sequentially occupied from the lowest or highest resource unit in the frequency domain, and the downlink control information is sequentially occupied from the feedback information of the uplink traffic channel. Wherein, if the demodulation reference signal is encountered, the resource in which the demodulation reference signal is located is not occupied.
  • the downlink traffic channel carries a demodulation reference signal; wherein, if the control information includes downlink control information, the control information is located in the first symbol of the downlink traffic channel or from the The first symbol of the downlink traffic channel begins to occupy, including:
  • the downlink control information is located at least on both sides of the demodulation reference signal in the first symbol of the downlink traffic channel, where the demodulation reference signal is located in a first symbol of the downlink traffic channel, or the demodulation reference The signal is located at a first symbol of the downlink traffic channel and a symbol following the first symbol; or
  • the downlink control information is located in the first symbol of the downlink traffic channel and is sequentially occupied from the lowest or highest frequency domain of the frequency domain, wherein the resource in which the demodulation reference signal is located is not occupied if the demodulation reference signal is encountered.
  • the downlink traffic channel carries a demodulation reference signal; the different types of information in the control information are located in different symbols in the downlink traffic channel, including:
  • the downlink control information is located in the first symbol of the downlink traffic channel or is occupied by the first symbol of the downlink traffic channel, and the feedback information of the uplink traffic channel is located after the first symbol of the downlink traffic channel. And located at the same position as the frequency domain of the demodulation reference signal; or
  • the downlink control information is located in the first symbol of the downlink traffic channel or is occupied by the first symbol of the downlink traffic channel, and the feedback information of the uplink traffic channel is located at least in a symbol that first includes a demodulation reference signal. Demodulating two sides of the reference signal, the demodulation reference signal being located after the first symbol of the downlink traffic channel; or
  • the downlink control information and the feedback information of the uplink traffic channel are sequentially occupied from resource elements with the lowest or highest frequency domain of the respective symbols, wherein the demodulation reference is not occupied if the demodulation reference signal is encountered.
  • the transmission manner of the control information includes at least one of the following:
  • the control information uses a single layer transmission, where the port used by the control information is one of ports used by the downlink traffic channel; or
  • the control information is transmitted by using a single codeword, and the codeword used by the information is determined to be a codeword having a highest modulation coding mode among the plurality of codewords, and the control information uses a fixed modulation mode; or
  • the control information is transmitted by using multiple layers or multiple codewords, where the control information includes the downlink control information and does not include feedback information of the uplink traffic channel, and is transmitted through each layer or each codeword. Part of the downlink control information; or
  • control information is transmitted using multiple layers or multiple codewords, wherein the control information transmits the same information on all layers or all codewords;
  • the control information is transmitted using multiple layers or multiple codewords, wherein the control information and the downlink data are transmitted using different layers or different codewords, respectively.
  • the port used by the control information is one of the ports used by the downlink service channel, and includes:
  • the port used by the control information is a port with the smallest index value among the plurality of ports used by the downlink traffic channel.
  • the part of the downlink control information is transmitted by using each layer, including:
  • the subtype information includes at least one of the following: hybrid automatic repeat request information, timing information, power control information, and resource indication information of an uplink control channel.
  • the feedback information of the uplink service channel further includes: a hybrid automatic repeat request process number.
  • the downlink traffic channel carries a demodulation reference signal; wherein, if the control information includes feedback information of an uplink traffic channel, the control information is located at a resource location of the downlink traffic channel, including:
  • the feedback information of the uplink traffic channel is located at least on both sides of the demodulation reference signal in the first symbol of the downlink traffic channel, where the demodulation reference signal is located in the first symbol of the downlink traffic channel region, or Demodulating a reference signal located at a first symbol of the downlink traffic channel and a symbol following the first symbol; or
  • the feedback information of the uplink traffic channel is located in the first symbol of the downlink traffic channel and is sequentially occupied from the lowest or highest frequency domain of the frequency domain, where the demodulation reference signal is not occupied if the demodulation reference signal is encountered. Resources; or,
  • the feedback information of the uplink traffic channel is located at the same location as the frequency domain in which the demodulation reference signal is located.
  • the resource usage manners of the different sub-type information include:
  • Different subtype information occupies different locations in the same symbol; or, different subtype information occupies different symbols.
  • the downlink control information is the second-level downlink control information
  • the feedback information of the uplink traffic channel is the hybrid automatic retransmission request feedback information of the uplink traffic channel.
  • each unit in the information transmission device may be a Central Processing Unit (CPU) or a Micro Processor Unit (MPU) located in the neighboring area optimization device. Or a digital signal processor (DSP), or a Field Programmable Gate Array (FPGA).
  • CPU Central Processing Unit
  • MPU Micro Processor Unit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • the above information transmission apparatus of the present application may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a separate product. Based on such understanding, the information transmission method and apparatus of the embodiments of the present application may be embodied in the form of a software product in essence or in a contribution to the related art, and the computer software product is stored in a storage medium, including a plurality of instructions.
  • a computer device which may be a personal computer, server, or network device, etc.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a removable hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a removable hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present application further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute the information transmission method of the embodiment of the present application.
  • the information transmission method and device provided by the present disclosure can quickly demodulate control information, ensure the performance requirement of downlink control information, avoid introducing additional downlink channels, save control overhead, and improve system spectrum efficiency.

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Abstract

公开了一种信息传输方法及装置，所述方法包括：通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：下行控制信息和上行业务信道的反馈信息。

Description

信息传输方法及装置 技术领域
本公开涉及信息传输技术，例如涉及一种信息传输方法及装置。
背景技术
随着***移动通信技术(the 4th Generation mobile communication technology，4G)长期演进(Long-Term Evolution，LTE)/高级长期演进(Long-Term Evolution Advance，LTE-A)***商用的日益完善，对下一代移动通信技术即第五代移动通信技术(the 5th Generation mobile communication technology，5G)的技术指标要求也越来越高。
业内普遍认为，下一代移动通信***应具有超高速率、超高容量、超高可靠性、以及超低延时传输特性等特征。但是，如何对下行控制信息(Downlink Control Information，DCI)和上行业务信道的反馈信息进行有效传输是有待解决的问题。
发明内容
为解决上述技术问题，本申请实施例提供了一种信息传输方法及装置。
本申请实施例提供的信息传输方法，包括：
通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：
下行控制信息和上行业务信道的反馈信息。
本申请实施例提供的信息传输装置，包括：
传输单元，设置为通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：
下行控制信息和上行业务信道的反馈信息。
本申请实施例提供了一种存储介质，所述存储介质包括存储的程序，其中，在所述程序运行时控制所述存储介质所在设备执行上述所述的信息传输方法。
本申请实施例的信息传输方法及装置，通过下行业务信道传输控制信息，其中，所述控制信息包括如下信息的至少之一：下行控制信息、上行业务信道的反馈信息。采用本申请实施例的信息传输方法及装置，可以实现通过下行业务信道承载下行控制信息和上行业务信道的反馈信息，通过选择下行业务信道 中不同资源位置承载下行控制信息和上行业务信道的反馈信息，使得可以快速解调控制信息，同时保证下行控制信息的性能需求，避免了引入额外的下行信道，节省了控制开销，提升了***频谱效率。
附图概述
图1为本申请实施例的信息传输方法的流程示意图；
图2为本申请一实施例的不同控制信息位于相同符号的示意图；
图3为本申请另一实施例的不同控制信息位于相同符号的示意图；
图4为本申请又一实施例的不同控制信息位于相同符号的示意图；
图5为本申请一实施例的不同控制信息位于不同符号的示意图；
图6为本申请另一实施例的不同控制信息位于不同符号的示意图；
图7为本申请又一实施例的不同控制信息位于不同符号的示意图；
图8为本申请一实施例的控制信息位于PDSCH的示意图；
图9为本申请另一实施例的控制信息位于PDSCH的示意图；
图10为本申请一实施例的信息传输装置的结构组成示意图。
具体实施方式
目前对于5G***的调度方案，一种候选方案是采用两级下行控制信息。在两级DCI中，第一级DCI的内容包括与解调业务信道直接相关的信息，如资源分配、调制编码方式等；第二级DCI的内容包括与解调业务信道不直接相关的信息，如反馈肯定应答(Acknowledgement，ACK)/否定应答(Non Acknowledgement，NACK)资源指示、功率控制等。此外，对于5G***，还有需求在特定信道中传输上行业务信道的反馈ACK/NACK信息。
图1为本申请实施例的信息传输方法的流程示意图，如图1所示，所述信息传输方法包括以下步骤：
步骤101：通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：下行控制信息和上行业务信道的反馈信息。
本申请实施例中，所述控制信息在所述下行业务信道中的资源占用方式为方式一和方式二。
方式一：所述控制信息中不同类型的信息位于所述下行业务信道中相同的 符号，其中，所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用。
方式二：所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号。
下面对上述方式一和方式二分别进行描述。
对于方式一而言：所述下行业务信道中承载有解调参考信号(Demodulation Reference Signal，DMRS)。其中，如果所述控制信息包括下行控制信息和上行业务信道的反馈信息，则所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，包括：
所述上行业务信道的反馈信息至少位于所述下行业务信道的首个符号中DMRS的两侧，所述下行控制信息位于所述上行业务信道的反馈信息的两侧，其中，所述DMRS位于所述下行业务信道的首个符号，或所述DMRS位于所述下行业务信道的首个符号以及所述首个符号之后的符号；或者，
所述上行业务信道的反馈信息位于与所述DMRS所在的频域相同的位置，所述下行控制信息位于所述上行业务信道的反馈信息的两侧，所述DMRS位于所述下行业务信道的非首个符号上；或者，
所述上行业务信道的反馈信息位于所述下行业务信道的首个符号且从频域最低或最高的资源单元(Resource Element，RE)开始顺序占用，所述下行控制信息从所述上行业务信道的反馈信息之后开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
如果所述控制信息包括下行控制信息，则所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，包括：
所述下行控制信息至少位于所述下行业务信道的首个符号中DMRS的两侧，其中，所述DMRS位于所述下行业务信道的首个符号，或所述DMRS位于所述下行业务信道的首个符号以及所述首个符号之后的符号；或者，
所述下行控制信息位于所述下行业务信道的首个符号且从频域最低或最高位置开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
对于方式二而言：所述下行业务信道中承载有DMRS；所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号，包括：
所述下行控制信息位于所述下行业务信道的首个符号或从所述下行业务信 道的首个符号开始占用，所述上行业务信道的反馈信息位于所述下行业务信道的首个符号之后的符号且位于与所述DMRS频域相同的位置；或者，
所述下行控制信息位于所述下行业务信道的首个符号，或从所述下行业务信道的首个符号开始占用，所述上行业务信道的反馈信息至少位于最先包含DMRS的符号中的DMRS的两侧，所述DMRS位于所述下行业务信道的首个符号之后的符号；或者，
所述下行控制信息和所述上行业务信道的反馈信息，分别从各自所在符号的频域最低或最高的RE开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
本申请实施例中，所述下行业务信道使用多层或多个码字传输时，所述控制信息的传输方式包括以下至少之一：所述控制信息使用单层传输，其中，所述控制信息使用的端口为所述下行业务信道使用的端口之一；或者，
所述控制信息使用单码字传输，确定所述信息使用的码字为业务信道使用多个码字中具有最高调制编码方式(Modulation and Coding Scheme，MCS)的码字，且所述控制信息使用固定的调制方式；或者，
所述控制信息使用多层或多个码字传输，其中，当所述控制信息包括所述下行控制信息且不包括所述上行业务信道的反馈信息时，通过每一层或每个码字传输所述下行控制信息的部分信息；或者，
所述控制信息使用多层或多个码字传输，其中，所述控制信息在所有层或所***字上传输相同信息；或者，
所述控制信息使用多层或多个码字传输，其中，所述控制信息与下行数据分别使用不同的层或不同的码字传输。
在一实施方式中，所述控制信息使用的端口为所述下行业务信道使用的端口之一，包括：所述控制信息使用的端口为所述下行业务信道使用的多个端口中索引值最小的端口。
在一实施方式中，所述通过每一层传输所述下行控制信息的部分信息，包括：将所述下行控制信息中的不同子类型信息承载在不同的层进行传输。
其中，所述子类型信息包括以下至少之一：混合自动重传请求(Hybird Automatic Repeat reQues，HARQ)信息、定时信息、功率控制信息、以及上行控制信道的资源指示信息。
在一实施方式中，HARQ信息包括：新数据指示(New Date Indicator，NDI)、 MCS、冗余版本(Redundancy Version，RV)、以及进程号。定时信息包括：符号级定时信息、以及子帧/时隙(slot)/微时隙(mini-slot)级定时时隙。
本申请实施例中，所述上行业务信道的反馈信息还包括：HARQ进程号。
本申请实施例中，所述下行业务信道中承载有HARQ；其中，如果所述控制信息包括上行业务信道的反馈信息，则控制信息位于所述下行业务信道的资源位置，包括：
所述上行业务信道的反馈信息至少位于首个符号中DMRS的两侧，其中，所述DMRS位于所述下行业务信道区域的首个符号上或所述DMRS位于所述下行业务信道的首个符号以及所述首个符号之后的符号上；或者，
所述上行业务信道的反馈信息位于所述下行业务信道的首个符号且从频域最低或最高位置开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源；或者，
所述上行业务信道的反馈信息位于与所述DMRS所在的频域相同的位置。
这里，对于增强移动宽带(Enhance Mobile Broadband，eMBB)业务而言，HARQ-ACK信息和HARQ进程号作为同一种控制信息类型进行传输。对于低时延高可靠连接(Ultra-Reliable and Low Latency Communications，URLLC)业务而言，在HARQ-ACK信息中携带小于eMBB最大进程数量的进程号信息。
本申请实施例中，所述第二级下行控制信息具有不同的子类型信息时，不同的子类型信息的资源占用方式包括：
不同的子类型信息占用同一符号中不同的位置；或者，不同的子类型信息占用不同的符号。
本申请的上述方案中，所述下行控制信息为第二级下行控制信息，所述上行业务信道的反馈信息为上行业务信道的HARQ反馈信息(例如为HARQ-ACK信息)。
下面结合应用示例对本申请实施例的信息传输方法进行详细描述。在一实施例中，第二级DCI和HARQ-ACK信息都可以称为控制信息。
本实施例中，通过下行业务信道传输控制信息，其中，下行业务信道是指物理下行共享信道(Physical Downlink Shared Channel，PDSCH)。控制信息包括如下至少之一：下行控制信息和上行业务信道的反馈信息。其中，下行控制信息是指第二级DCI，上行业务信道是指物理上行共享信道(Physical Uplink Shared Channel，PUSCH)，上行业务信道的反馈信息是指对PUSCH反馈的 ACK/NACK信息。
基站调度终端(User Equipment，UE)传输下行数据，同时采用了两级DCI，其中第二级DCI位于PDSCH中。同时在该slot #n中，承载对slot #n-k中该UE A的PUSCH反馈ACK/NACK信息(即HARQ-ACK信息)。此时，这两种信息在PDSCH中占用资源如图2所示。控制信息(包括第二级DCI和HARQ-ACK信息)位于PDSCH的首个符号或从所述PDSCH的首个符号开始占用。此时DMRS位于PDSCH的首个符号。此时HARQ-ACK位于DMRS两侧，第二级DCI(即Stage-2DCI)位于HARQ-ACK两侧。从PDSCH首个符号频域最低开始占用。此时HARQ-ACK占用RE数量为X，X取值可以固定，或根据PDSCH的MCS和高层配置的资源使用偏移参数确定。例如HARQ-ACK信息为1个比特，采用1/12码率的信道编码和二进制相移键控(Binary Phase Shift Keying，BPSK)调制占用X＝12个RE。第二级DCI占用RE数量为Y，Y取值可以固定，或者第二级DCI可以根据不同比特数量(如：B1、B2、B3、以及B4表示4种不同的比特数量)占用不同数量Y个RE(如：Y1、Y2、Y3、以及Y4表示4种不同的取值)，或根据PDSCH的MCS和高层配置的资源使用偏移参数确定。例如B3＝60个比特，采用1/3码率信道编码和正交相移键控(Quadrature Phase Shift Keying，QPSK)调制占用Y3＝90个RE。第二级DCI的比特数量可以固定或由第一级指示或盲检。
在一实施例中，对于第二级DCI采用独立编码，使用物理下行控制信道(Physical Downlink Control Channel，PDCCH)编码方式。例如使用独立的循环冗余校验(Cyclic Redundancy Check，CRC)，CRC长度与PDCCH使用的CRC长度相同或者根据第二级DCI的比特数量(以下简称DCI size)选择不同CRC长度，还可以考虑较小DCI size时不使用CRC。在另一实施例中，对于第二级DCI采用非独立编码，与PDSCH一起编码。例如适用于在URLLC时，PDSCH和PDCCH的目标误块率(block error rate，BLER)相同时，都是99.9％。PDSCH对第二级DCI速率匹配。
在一实施例中，对于HARQ-ACK采用独立编码，或采用序列传输。HARQ-ACK在固定位置打孔PDSCH相应的RE。其中，无论是否有HARQ-ACK信息，第二级DCI占用的Y个RE资源位置不变，即从DMRS两侧X个RE资源的两侧占用Y个RE资源，即没有HARQ-ACK信息时，PDSCH资源占用DMRS两侧X个RE且不被打孔。
终端接收该PDSCH信道时，同时在确定的资源位置上接收第二级DCI和对之前发送的PUSCH反馈信息。
在一实施例中，控制信息中不同类型的信息位于所述下行业务信道中相同的符号，或者位于所述下行业务信道中不同的符号。本实施例中其他方式占用资源如图3至图7所示。其中图2至图4为不同类型的控制信息位于相同正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号，图5至图7为不同类型的控制信息位于不同OFDM符号。
图3为一实施例提供的不同控制信息位于相同符号的两种示意图。如图3所示，HARQ-ACK位于DMRS所在频域位置，第二级DCI位于HARQ-ACK两侧。此时DMRS不在PDSCH的首个符号上(也即在PDSCH的非首个符号上)。此时控制信息从PDSCH首个符号频域最低开始占用，HARQ-ACK占用RE数量为X，第二级DCI占用RE数量为Y。X、Y取值同上。
图4为又一实施例提供的不同控制信息位于相同符号的三种示意图。如图4所示，HARQ-ACK位于首个符号前X个RE(如果有DMRS则X为扣除掉导频RE之后的数量，即此时DMRS所在符号可以为PDSCH中首个符号或非首个符号)，第二级DCI从第X+1个符号开始占用，占用Y个RE。X、Y取值同上。
在一实施例中，区分符号放置不同类型的控制信息如图5至图7所示。除了快速解调控制信息以外，还可以对于不同类型的控制信息区分不同时延需求。保证不同控制信息的不同性能需求。下面图5至图7以优选时延处理第二级DCI，次优时延处理HARQ-ACK为例，即HARQ-ACK所在符号位置位于第二级DCI所在符号位置之后。在另一实施例中，也可以优选时延处理HARQ-ACK，次优时延处理第二级DCI为例，即第二级DCI所在符号位置位于HARQ-ACK所在符号位置之后。
图5为一实施例提供的不同控制信息位于不同符号的三种示意图。如图5所示，优选时延处理第二级DCI，次优时延处理HARQ-ACK。HARQ-ACK位于DMRS相同频域位置。此时第二级DCI从PDSCH频域最低开始占用，HARQ-ACK占用RE数量为X，第二级DCI占用RE数量为Y。X、Y取值同上。即此时DMRS所在符号可以为PDSCH中首个符号或非首个符号。
图6为另一实施例提供的不同控制信息位于不同符号的两种示意图。如图6所示，优选处理第二级DCI，次优处理HARQ-ACK。HARQ-ACK位于DMRS两侧。此时第二级DCI从PDSCH频域最低开始占用，HARQ-ACK占用RE数 量为X，第二级DCI占用RE数量为Y。X、Y取值同上。此时DMRS不在PDSCH的首个符号上。
图7为又一实施例提供的不同控制信息位于不同符号的四种示意图。如图7所示，优选处理第二级DCI，次优处理HARQ-ACK。从各自符号频域最低RE开始占用。HARQ-ACK位于所在符号前X个RE(如果有DMRS则X为扣除掉导频RE之后的数量)，第二级DCI位于所在符号前Y个RE(如果有DMRS则Y为扣除掉导频RE之后的数量)。HARQ-ACK占用RE数量为X，第二级DCI占用RE数量为Y。X、Y取值同上。即此时DMRS所在符号可以为PDSCH中首个符号或非首个符号。
通过本实施例所述的一种信息传输方法，可以实现通过下行业务信道承载下行控制信息，通过选择下行业务信道中不同资源位置承载不同类型的下行控制信息，使得可以快速解调控制信息或者对于不同类型的控制信息区分不同时延需求，同时保证不同类型的下行控制信息的性能需求，避免引入额外的下行信道，节省控制开销，提升***频谱效率。
本实施例中，通过下行业务信道传输控制信息，其中，控制信息包括如下至少之一：下行控制信息和上行业务信道的反馈信息。其中，下行控制信息是指第二级DCI，上行业务信道的反馈信息是指对PUSCH反馈的ACK/NACK信息。
基站调度UE传输下行数据，同时采用了两级DCI，其中第二级DCI位于下行业务信道PDSCH中。图8为一实施例提供的控制信息位于PDSCH的三种示意图。第二级DCI在PDSCH中占用资源如图8所示，其中第二级DCI位于PDSCH首个符号或从所述PDSCH的首个符号开始占用。此时第二级DCI从PDSCH首个符号频域最低开始顺序占用或位于DMRS两侧。此时。第二级DCI占用RE数量为Y，Y取值可以固定，或者第二级DCI可以根据不同比特数量(如：B1、B2、B3、以及B4表示4种不同的比特数量)占用不同数量Y个RE(如：Y1、Y2、Y3、以及Y4表示4种不同的取值)，或根据PDSCH的MCS和高层配置的资源使用偏移参数确定。第二级DCI的比特数量可以固定或由第一级指示或盲检。
在一实施例中，当PDSCH使用多层传输时，第二级DCI使用单层传输，确定所述信息使用的端口为PDSCH使用的端口之一。例如可以使用PDSCH多个端口(port)中索引(index)最小的端口。或者，第二级DCI使用多层传输， 每一层传输第二级DCI的部分信息。例如可以将不同的子类型信息放在不同的层传输。此时第二级DCI占用RE仍为独立RE，占用RE数量减少。其中，子类型信息包括以下至少之一：HARQ信息(NDI+MCS+RV+进程号)、定时信息(符号级定时和子帧/slot/mini-slot级定时)、功率控制信息、以及PUCCH资源指示信息等。或者，第二级DCI使用多层传输，且与下行数据分别使用不同的层传输。此时第二级DCI占用RE与下行数据共享，占用RE数量不变。
在一实施例中，对于不同子类型信息为两种时，其资源占用方案类似上述实施例中的两种信息占用资源。当子类型信息超过两种时，区分同一符号中更多的不同位置，或更多不同符号中位置。
在一实施例中，对于第二级DCI采用独立编码，使用PDCCH编码方式。例如可以使用独立的CRC，CRC长度与PDCCH使用的CRC长度相同或者根据DCI size选择不同CRC长度，还可以考虑较小DCI size时不使用CRC；或者对于第二级DCI采用非独立编码，与PDSCH一起编码。例如，适用于在URLLC时PDSCH和PDCCH目标BLER相同时，都是99.9％。PDSCH对第二级DCI速率匹配。
在一实施例中，终端接收该PDSCH信道时，同时在确定的资源位置上接收第二级DCI。
通过本实施例所述的一种信息传输方法，可以实现通过下行业务信道承载下行控制信息，通过选择下行业务信道中不同资源位置承载下行控制信息，使得可以快速解调控制信息，同时保证下行控制信息的性能需求，避免引入额外的下行信道，节省控制开销，提升***频谱效率。本实施例中，通过下行业务信道传输控制信息，其中，控制信息包括如下至少之一：下行控制信息和上行业务信道的反馈信息。其中，下行控制信息是指第二级DCI，上行业务信道是指PUSCH，上行业务信道的反馈信息是指对PUSCH反馈的ACK/NACK信息。
基站调度UE A传输下行数据，同时在该slot #n中，承载对slot #n-k中该UE A对PUSCH反馈的ACK/NACK信息。图9为一另实施例提供的控制信息位于PDSCH的四种示意图。HARQ-ACK在PDSCH中占用资源如图9所示，其中HARQ-ACK位于PDSCH首个符号或非首个符号。此时HARQ-ACK从PDSCH首个符号或非首个符号占用资源或位于DMRS两侧或位于DMRS所在频域位置。此时HARQ-ACK占用RE数量为X，X取值可以固定，或根据PDSCH的MCS和高层配置的资源使用偏移参数确定。对于小比特(例如1-2个比特) HARQ-ACK信息，例如可以是PDSCH中固定的物理资源块(Physical Resource Block，PRB)位置。在一实施例中，与DMRS在{单一符号，M个PRB}中占用RE数相同，其中M为1或大于1的正整数。例如，当M＝1时占用4RE或6RE，此时固定的PRB位置，例如起始PRB，或终止PRB，或中心PRB。此时占用RE数较少。例如当M＝3时占用12RE或18RE，此时固定的PRB位置，例如起始PRB+终止PRB+等分位置的部分PRB。此时占用RE数较少。对于大比特(如CA时反馈多个PUSCH的ACK/ANCK)HARQ-ACK信息，M为大于1的正整数。
在一实施例中，所述HARQ-ACK for PUSCH除了ACK/NACK信息以外还包括进程号信息，以支持上行异步HARQ。在一实施例中，对于eMBB，此时HARQ-ACK和HARQ进程号作为同一种控制信息类型传输，或者可以作为两种类型的控制信息传输类似上述图1-7的实施例中两种信息占用资源。在另一实施例中，对于URLLC，不同之处在于，携带小于eMBB最大进程数量的进程号信息以支持上行异步HARQ；或者对于URLLC，考虑到快速传输，仍传输HARQ-ACK不携带进程号信息，以同步方式传输。
在一实施例中，对于HARQ-ACK采用独立编码，或采用序列传输。HARQ-ACK在固定位置打孔PDSCH相应的RE。
终端接收该PDSCH信道时，同时在确定的资源位置上接收之前发送的PUSCH反馈信息。图10为本申请实施例的信息传输装置的结构组成示意图，如图10所示，所述信息传输装置包括：
传输单元1001，设置为通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：
下行控制信息和上行业务信道的反馈信息。
本申请实施例中，所述装置还包括：封装单元1002，设置为在下行业务信道中承载所述控制信息，所述控制信息在所述下行业务信道中的资源占用方式为：
所述控制信息中不同类型的信息位于所述下行业务信道中相同的符号，其中，所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用；或者，
所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号。
本申请实施例中，所述下行业务信道中承载有解调参考信号；其中，如果 所述控制信息包括下行控制信息和上行业务信道的反馈信息，则所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，包括：
所述上行业务信道的反馈信息至少位于所述下行业务信道的首个符号中解调参考信号的两侧，所述下行控制信息位于所述上行业务信道的反馈信息的两侧，其中，所述解调参考信号位于所述下行业务信道的首个符号，或所述解调参考信号位于所述下行业务信道的首个符号以及所述首个符号之后的符号上；或者，
所述上行业务信道的反馈信息位于与所述解调参考信号所在的频域相同的位置，所述下行控制信息位于所述上行业务信道的反馈信息的两侧，所述解调参考信号位于所述下行业务信道的非首个符号上；或者，
所述上行业务信道的反馈信息位于所述下行业务信道的首个符号且从频域最低或最高的资源单元开始顺序占用，所述下行控制信息从所述上行业务信道的反馈信息之后开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
本申请实施例中，所述下行业务信道中承载有解调参考信号；其中，如果所述控制信息包括下行控制信息，则所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，包括：
所述下行控制信息至少位于所述下行业务信道的首个符号中解调参考信号的两侧，其中，所述解调参考信号位于所述下行业务信道的首个符号，或所述解调参考信号位于所述下行业务信道的首个符号以及所述首个符号之后的符号；或者，
所述下行控制信息位于所述下行业务信道的首个符号且从频域最低或最高位置开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
本申请实施例中，所述下行业务信道中承载有解调参考信号；所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号，包括：
所述下行控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，所述上行业务信道的反馈信息位于所述下行业务信道的首个符号之后的符号且位于与所述解调参考信号频域相同的位置；或者，
所述下行控制信息位于所述下行业务信道的首个符号或从所述下行业务信 道的首个符号开始占用，所述上行业务信道的反馈信息至少位于最先包含解调参考信号的符号中的解调参考信号的两侧，所述解调参考信号位于所述下行业务信道的首个符号之后的符号；或者，
所述下行控制信息和所述上行业务信道的反馈信息，分别从各自所在符号的频域最低或最高的资源单元开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
本申请实施例中，所述下行业务信道使用多层或多个码字传输时，所述控制信息的传输方式包括以下至少之一：
所述控制信息使用单层传输，其中，所述控制信息使用的端口为所述下行业务信道使用的端口之一；或者，
所述控制信息使用单码字传输，确定所述信息使用的码字为业务信道使用多个码字中具有最高调制编码方式的码字，且所述控制信息使用固定的调制方式；或者，
所述控制信息使用多层或多个码字传输，其中，当所述控制信息包括所述下行控制信息且不包括所述上行业务信道的反馈信息时，通过每一层或每个码字传输所述下行控制信息的部分信息；或者，
所述控制信息使用多层或多个码字传输，其中，所述控制信息在所有层或所***字上传输相同信息；或者，
所述控制信息使用多层或多个码字传输，其中，所述控制信息与下行数据分别使用不同的层或不同的码字传输。
本申请实施例中，所述控制信息使用的端口为所述下行业务信道使用的端口之一，包括：
所述控制信息使用的端口为所述下行业务信道使用的多个端口中索引值最小的端口。
本申请实施例中，所述通过每一层传输所述下行控制信息的部分信息，包括：
将所述下行控制信息中的不同子类型信息承载在不同的层进行传输；
其中，所述子类型信息包括以下至少之一：混合自动重传请求信息、定时信息、功率控制信息、以及上行控制信道的资源指示信息。
本申请实施例中，所述上行业务信道的反馈信息还包括：混合自动重传请求进程号。
本申请实施例中，所述下行业务信道中承载有解调参考信号；其中，如果所述控制信息包括上行业务信道的反馈信息，则控制信息位于所述下行业务信道的资源位置，包括：
所述上行业务信道的反馈信息至少位于所述下行业务信道的首个符号中解调参考信号的两侧，其中，所述解调参考信号位于所述下行业务信道区域的首个符号，或所述解调参考信号位于所述下行业务信道的首个符号以及所述首个符号之后的符号；或者，
所述上行业务信道的反馈信息位于所述下行业务信道的首个符号且从频域最低或最高位置开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源；或者，
所述上行业务信道的反馈信息位于与所述解调参考信号所在的频域相同的位置。
本申请实施例中，所述下行控制信息为第二级下行控制信息，所述第二级下行控制信息具有不同的子类型信息时，不同的子类型信息的资源占用方式包括：
不同的子类型信息占用同一符号中不同的位置；或者，不同的子类型信息占用不同的符号。
本申请实施例中，所述下行控制信息为第二级下行控制信息，所述上行业务信道的反馈信息为上行业务信道的混合自动重传请求反馈信息。
本领域技术人员应当理解，图10所示的信息传输装置中的各单元的实现功能可参照前述信息传输方法的相关描述而理解。
在实际应用中，所述信息传输装置中的各个单元所实现的功能，均可由位于邻区优化装置中的中央处理器(Central Processing Unit，CPU)、或微处理器(Micro Processor Unit，MPU)、或数字信号处理器(，Digital Signal Processor，DSP)、或现场可编程门阵列(Field Programmable Gate Array，FPGA)等实现。
本申请实施例上述信息传输装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的信息传输方法及装置本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本申请各个实施例所述方法的全部或部分。而前述 的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本申请实施例不限制于任何特定的硬件和软件结合。
相应地，本申请实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序配置为执行本申请实施例的信息传输方法。
工业实用性
本公开提供的一种信息传输方法及装置，能够快速解调控制信息，同时保证下行控制信息的性能需求，避免了引入额外的下行信道，节省了控制开销，提升了***频谱效率。

Claims (15)

  1. 一种信息传输方法，包括：
    通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：
    下行控制信息和上行业务信道的反馈信息。
  2. 根据权利要求1所述的方法，其中，所述控制信息在所述下行业务信道中的资源占用方式为：
    所述控制信息中不同类型的信息位于所述下行业务信道中相同的符号，其中，所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用；或者，
    所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号。
  3. 根据权利要求2所述的方法，其中，所述下行业务信道中承载有解调参考信号；其中，如果所述控制信息包括下行控制信息和上行业务信道的反馈信息，则所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，包括：
    所述上行业务信道的反馈信息至少位于所述下行业务信道的首个符号中解调参考信号的两侧，所述下行控制信息位于所述上行业务信道的反馈信息的两侧，其中，所述解调参考信号位于所述下行业务信道的首个符号，或所述解调参考信号位于所述下行业务信道的首个符号以及所述首个符号之后的符号；或者，
    所述上行业务信道的反馈信息位于与所述解调参考信号所在的频域相同的位置，所述下行控制信息位于所述上行业务信道的反馈信息的两侧，所述解调参考信号位于所述下行业务信道的非首个符号上；或者，
    所述上行业务信道的反馈信息位于所述下行业务信道的首个符号且从频域最低或最高的资源单元开始顺序占用，所述下行控制信息从所述上行业务信道的反馈信息之后开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
  4. 根据权利要求2所述的方法，其中，所述下行业务信道中承载有解调参考信号；其中，如果所述控制信息包括下行控制信息，则所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，包括：
    所述下行控制信息至少位于所述下行业务信道的首个符号中解调参考信号的两侧，其中，所述解调参考信号位于所述下行业务信道的首个符号，或所述解调参考信号位于所述下行业务信道的首个符号以及所述首个符号之后的符号； 或者，
    所述下行控制信息位于所述下行业务信道的首个符号且从频域最低或最高位置开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
  5. 根据权利要求2所述的方法，其中，所述下行业务信道中承载有解调参考信号；所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号，包括：
    所述下行控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，所述上行业务信道的反馈信息位于所述下行业务信道的首个符号之后的符号且位于与所述解调参考信号频域相同的位置；或者，
    所述下行控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用，所述上行业务信道的反馈信息至少位于最先包含解调参考信号的符号中的解调参考信号的两侧，所述解调参考信号位于所述下行业务信道的首个符号之后的符号；或者，
    所述下行控制信息和所述上行业务信道的反馈信息，分别从各自所在符号的频域最低或最高的资源单元开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源。
  6. 根据权利要求1-5任一项所述的方法，其中，所述下行业务信道使用多层或多个码字传输时，所述控制信息的传输方式包括以下至少之一：
    所述控制信息使用单层传输，其中，所述控制信息使用的端口为所述下行业务信道使用的端口之一；或者，
    所述控制信息使用单码字传输，确定所述信息使用的码字为业务信道使用多个码字中具有最高调制编码方式的码字，且所述控制信息使用固定的调制方式；或者，
    所述控制信息使用多层或多个码字传输，其中，当所述控制信息包括所述下行控制信息时，通过每一层或每个码字传输所述下行控制信息的部分信息；或者，
    所述控制信息使用多层或多个码字传输，其中，所述控制信息在所有层或所***字上传输相同信息；或者，
    所述控制信息使用多层或多个码字传输，其中，所述控制信息与下行数据分别使用不同的层或不同的码字传输。
  7. 根据权利要求6所述的方法，其中，所述控制信息使用的端口为所述下行业务信道使用的端口之一，包括：
    所述控制信息使用的端口为所述下行业务信道使用的多个端口中索引值最小的端口。
  8. 根据权利要求6所述的方法，其中，所述通过每一层传输所述下行控制信息的部分信息，包括：
    将所述下行控制信息中的不同子类型信息承载在不同的层进行传输；
    其中，所述子类型信息包括以下至少之一：混合自动重传请求信息、定时信息、功率控制信息、以及上行控制信道的资源指示信息。
  9. 根据权利要求1所述的方法，其中，所述上行业务信道的反馈信息还包括：混合自动重传请求进程号。
  10. 根据权利要求1所述的方法，其中，所述下行业务信道中承载有解调参考信号；其中，如果所述控制信息包括上行业务信道的反馈信息，则控制信息位于所述下行业务信道的资源位置，包括：
    所述上行业务信道的反馈信息至少位于首个符号中解调参考信号的两侧，其中，所述解调参考信号位于所述下行业务信道区域的首个符号，或所述解调参考信号位于所述下行业务信道的首个符号以及所述首个符号之后的符号；或者，
    所述上行业务信道的反馈信息位于所述下行业务信道的首个符号且从频域最低或最高位置开始顺序占用，其中，如果遇到解调参考信号则不占用所述解调参考信号所在的资源；或者，
    所述上行业务信道的反馈信息位于与所述解调参考信号所在的频域相同的位置。
  11. 根据权利要求1-10中任一项所述的方法，其中，所述下行控制信息为第二级下行控制信息，所述第二级下行控制信息具有不同的子类型信息时，不同的子类型信息的资源占用方式包括：
    不同的子类型信息占用同一符号中不同的位置；或者，不同的子类型信息占用不同的符号。
  12. 根据权利要求1至11任一项所述的方法，其中，所述下行控制信息为第二级下行控制信息，所述上行业务信道的反馈信息为上行业务信道的混合自动重传请求反馈信息。
  13. 一种信息传输装置，所述装置包括：
    传输单元，设置为通过下行业务信道传输控制信息，其中，所述控制信息包括如下至少之一：
    下行控制信息和上行业务信道的反馈信息。
  14. 根据权利要求13所述的装置，其中，所述装置还包括：封装单元，设置为在下行业务信道中承载所述控制信息，所述控制信息在所述下行业务信道中的资源占用方式为：
    所述控制信息中不同类型的信息位于所述下行业务信道中相同的符号，其中，所述控制信息位于所述下行业务信道的首个符号或从所述下行业务信道的首个符号开始占用；或者，
    所述控制信息中不同类型的信息位于所述下行业务信道中不同的符号。
  15. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行权利要求1-12中任一项所述的方法。
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