WO2018202167A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2018202167A1
WO2018202167A1 PCT/CN2018/085713 CN2018085713W WO2018202167A1 WO 2018202167 A1 WO2018202167 A1 WO 2018202167A1 CN 2018085713 W CN2018085713 W CN 2018085713W WO 2018202167 A1 WO2018202167 A1 WO 2018202167A1
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Prior art keywords
reg
interleaved
regs
time domain
control
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PCT/CN2018/085713
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English (en)
French (fr)
Inventor
王建国
张旭
薛丽霞
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112019022830-6A priority Critical patent/BR112019022830B1/pt
Priority to EP22161250.0A priority patent/EP4075708B1/en
Priority to EP23205733.1A priority patent/EP4336938A3/en
Priority to AU2018263113A priority patent/AU2018263113B2/en
Priority to EP18794307.1A priority patent/EP3611864B1/en
Publication of WO2018202167A1 publication Critical patent/WO2018202167A1/zh
Priority to US16/672,646 priority patent/US11122556B2/en
Priority to US17/473,670 priority patent/US11930505B2/en

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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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H03M13/2778—Interleaver using block-wise interleaving, e.g. the interleaving matrix is sub-divided into sub-matrices and the permutation is performed in blocks of sub-matrices
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols

Definitions

  • the present application relates to the field of communications, and in particular to a communication method and a communication device for transmitting or receiving control information in the field of wireless communication.
  • the user equipment detects the downlink control information on the time-frequency resource where the downlink control channel is located, and determines the control information corresponding to the sent/received data according to the detected downlink control information, for example, when the data is transmitted/received Frequency resource location.
  • the time-frequency resource location of the reference signal is predefined, and the user equipment receives the reference signal according to the time-frequency resource location of the reference signal, and performs channel estimation according to the received signal.
  • the physical downlink control channel (PDCCH) is demodulated based on a cell specific reference signal (CRS), wherein the CRS is distributed in 12 subcarriers and 14 symbols.
  • CRS cell specific reference signal
  • the physical resource block is internal, and the CRS does not depend on the configuration of the PDCCH.
  • the CRS corresponding to the two antennas occupies 16 resource units and is distributed over 4 symbols in one PRB.
  • the LTE system further introduces an enhanced Physical Downlink Control Channel (EPDCCH).
  • the LTE EPDCCH is demodulated based on a Demodulation Reference Signal (DMRS), and the DMRS occupies 12 resource elements and is distributed on 12 subcarriers and 4 symbols in each resource block used by the EPDCCH.
  • DMRS Demodulation Reference Signal
  • the control channel corresponds to one or more Control Channel Elements (CCEs), that is, the control channel is mapped by CCE.
  • CCE Control Channel Elements
  • a CCE may correspond to a certain number of Resource Element Groups (REGs) such as 4 or 6 REGs.
  • REG Resource Element Groups
  • One REG corresponds to one physical resource block (PRB).
  • PRB physical resource block
  • one PRB consists of 12 consecutive subcarriers in the frequency domain and 1 (instead of 14 or 12) symbols in the time domain, that is, one PRB consists of 12 resources.
  • the component (Resource Element, RE) is composed. Each RE occupies 1 subcarrier and one symbol.
  • some REs carry Demodulation Reference Signals (DMRSs) for demodulating control channels, and some REs carry downlink control information.
  • the user equipment User Equipment, UE
  • the DMRS used by the control channel in the 5G NR occupies a very limited resource overhead, for example, 2 or 4 resource units, and is only located in the PRB or REG used by it, and Other symbols or reference signals within the PRB cannot be used directly. Therefore, the reference signal that can be used by the control channel in the 5G NR is very limited, and actually limits the channel estimation performance, which actually makes it difficult to meet the coverage performance requirements of the control channel.
  • the present application provides a communication method, which can improve channel estimation accuracy of a control channel, thereby improving transmission reliability of control information.
  • the method can further improve the resource multiplexing efficiency of the control channel and the data channel.
  • a communication method for transmitting control information comprising: determining a number and a location of a control channel unit CCE used by a control channel of a user equipment, wherein each of the CCEs corresponds to multiple resources a unit group REG, the plurality of REGs constituting at least one REG set, and any one of the at least one REG set includes a plurality of resource blocks RB that are consecutive or adjacent in a time domain and/or a frequency domain; Transmitting the control channel to the user equipment.
  • the method further includes: determining, by the network device, the at least one REG set from a control resource set according to a REG binding size or a REG binding pattern, where the control resource set includes a sending a resource block RB set of control channels, the RB set including the plurality of RBs.
  • the REG binding size is information predefined based on a search space or the control resource set, and/or the REG binding pattern is predefined based on a search space or the control resource set Information
  • an index of each of the CCEs corresponds to a plurality of interleaved REG indexes, and the multiple interleaved REG indexes are obtained based on a REG binding size or a REG binding pattern or a REG set.
  • the multiple interleaved REG indexes are obtained based on the REG binding size or the REG binding pattern or the REG set, and specifically include: according to the REG binding size or the REG binding pattern or The REG set groups the REG indexes corresponding to the control resource set, and performs interleaving with a REG set as a granularity in each packet.
  • the multiple interleaved REG indexes are obtained based on the REG binding size or the REG binding pattern or the REG set, and specifically include: controlling according to the REG binding size or the REG binding pattern. All REG sets corresponding to the resource set are packet interleaved.
  • the grouping and interleaving the REG set corresponding to the control resource set includes:
  • All REGs corresponding to the control resource set are equally grouped according to the REG set, and each group is interleaved with the REG set as granularity.
  • the network device performs the interleaving by using an interleaver, and the method further includes:
  • indication information is used to indicate a number of columns of an interlace matrix used by the interleaver.
  • a communication method for receiving control information comprising: determining, by a user equipment, a number and a location of a control channel unit CCE used by a control channel of the user equipment, where each of the CCEs corresponds to multiple a resource unit group REG, the plurality of REGs constituting at least one REG set, and any one of the at least one REG set includes a plurality of resource blocks RB that are consecutive or adjacent in a time domain and/or a frequency domain;
  • the user equipment receives the control channel from a network device by using the CCE.
  • the method further includes: determining, by the user equipment, the at least one REG set from a set of control resources according to a REG binding size or a REG binding pattern, where the control resource set includes a receiving a resource block RB set of control channels, the RB set including the plurality of RBs.
  • the REG binding size is information predefined based on a search space or the control resource set, and/or the REG binding pattern is predefined based on a search space or the control resource set Information.
  • an index of each of the CCEs corresponds to a plurality of interleaved REG indexes, and the multiple interleaved REG indexes are obtained based on a REG binding size or a REG binding pattern or a REG set.
  • the multiple interleaved REG indexes are obtained based on a REG binding size or a REG binding pattern or a REG set, and specifically include:
  • the multiple interleaved REG indexes are obtained based on a REG binding size or a REG binding pattern or a REG set, and specifically include:
  • the grouping and interleaving the REG set corresponding to the control resource set includes:
  • All REGs corresponding to the control resource set are equally grouped according to the REG set, and each group is interleaved with the REG set as granularity.
  • the user equipment performs the interleaving by using an interleaver, and the method further includes:
  • indication information sent by the network device, where the indication information is used to indicate a number of columns of an interlace matrix used by the interleaver.
  • the present application provides a network device, which can implement the functions performed by the network device in the method related to the foregoing aspects, and the functions can be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more corresponding units or modules of the above functions.
  • the network device includes a processor and a transceiver configured to support the apparatus to perform the corresponding functions of the above methods.
  • the transceiver is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • the present application provides a user equipment, which can implement the functions performed by the user equipment in the method related to the foregoing aspects, and the functions can be implemented by using hardware or by executing corresponding software by hardware.
  • the hardware or software includes one or more corresponding units or modules of the above functions.
  • the user equipment includes a processor and a transceiver configured to support the apparatus to perform the corresponding functions of the above methods.
  • the transceiver is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • a communication system comprising the network device and user equipment of the various aspects described above.
  • a computer program product comprising: computer program code, causing a network device when the computer program code is run by a communication unit, a processing unit or a transceiver of a user equipment, a processor Perform the method in the above implementation.
  • a computer program product comprising: computer program code, when the computer program code is run by a communication unit, a processing unit or a transceiver of a user equipment, or a processor, causing the user equipment Perform the method in the above implementation.
  • the present application provides a computer storage medium for storing computer software instructions for use in the network device described above, including a program designed to perform the above aspects.
  • the present application provides a computer storage medium for storing computer software instructions for use in the user equipment described above, including a program designed to perform the above aspects.
  • FIG. 1 is a schematic diagram of a communication system to which the present application is applied;
  • FIG. 2 is a schematic diagram of a control resource set provided by the present application.
  • FIG. 3 is a schematic diagram of two possible DMRSs provided by the present application.
  • FIG. 4 is a schematic diagram of a centralized and frequency-prioritized CCE-REG mapping method provided by the present application.
  • FIG. 5 is a schematic diagram of another centralized and frequency-prioritized CCE-REG mapping method provided by the present application.
  • FIG. 6 is a schematic diagram of a distributed and frequency-prioritized CCE-REG mapping method provided by the present application.
  • FIG. 7 is a schematic diagram of another distributed and frequency-prioritized CCE-REG mapping method provided by the present application.
  • FIG. 8 is a schematic diagram of a centralized and time-first CCE-REG mapping method provided by the present application.
  • FIG. 9 is a schematic diagram of another centralized and time-first CCE-REG mapping method provided by the present application.
  • FIG. 10 is a schematic diagram of a distributed and time-first CCE-REG mapping method provided by the present application.
  • FIG. 11 is a schematic diagram of another distributed and time-first CCE-REG mapping method provided by the present application.
  • Figure 12 is a possible REG collection pattern provided by the present application.
  • Figure 13 is another possible REG collection pattern provided by the present application.
  • Figure 14 is a further possible REG collection pattern provided by the present application.
  • 15 is a schematic diagram of a communication method for transmitting and receiving control information provided by the present application.
  • FIG. 17 is a schematic diagram of another REG index provided by the present application.
  • 20 is a schematic diagram of an index of an interleaved REG set provided by the present application.
  • 21 is a schematic diagram of another index of an interleaved REG set provided by the present application.
  • FIG. 22 is a schematic diagram of an index of another interleaved REG set provided by the present application.
  • FIG. 23 is a schematic diagram of an index of another interleaved REG set provided by the present application.
  • Figure 24 is a schematic diagram of grouping provided by the present application.
  • Figure 25 is a schematic diagram of grouping provided by the present application.
  • Figure 26 is a schematic diagram of grouping provided by the present application.
  • Figure 27 is a schematic diagram of grouping provided by the present application.
  • 29 is a schematic diagram of grouping provided by the present application.
  • FIG. 30 is a schematic diagram of a network device provided by the present application.
  • FIG. 31 is a schematic diagram of a network device provided by the present application.
  • FIG. 32 is a schematic diagram of a network device provided by the present application.
  • 33 is a schematic diagram of a user equipment provided by the present application.
  • FIG. 34 is a schematic diagram of a user equipment provided by the present application.
  • FIG. 35 is a schematic diagram of a user equipment provided by the present application.
  • FIG. 1 illustrates a communication system 100 to which the present application is applied.
  • the communication system 100 includes a network device 110 and a terminal device 120.
  • the network device 110 and the terminal device 120 communicate through a wireless network.
  • the wireless communication module can encode the information for transmission.
  • the wireless communication module can acquire a certain number of data bits to be transmitted over the channel to the network device 110, such as data bits generated by the processing module, received from other devices, or saved in the storage module.
  • These data bits may be included in one or more transport blocks (which may also be referred to as information blocks or data blocks) that may be segmented to produce a plurality of coded blocks.
  • a terminal device may be referred to as an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal can be a cellular telephone, a handheld device with wireless communication capabilities, a computing device or other processing device connected to the wireless modem, an in-vehicle device, a wearable device, and a user device in a 5G communication system.
  • the network device may be a base transceiver station (BTS) in a code division multiple access (CDMA) system, or may be a base station in a wideband code division multiple access (WCDMA) system (
  • the node B, NB) may also be an evolved base station (eNB) in a long term evolution (LTE) system, or may be a base station (gNB) in a 5G communication system, and the foregoing base station is only an example.
  • the network device can also be a relay station, an access point, an in-vehicle device, a wearable device, and other types of devices.
  • the communication system to which the present application is applied is merely an example.
  • the communication system to which the present application is applied is not limited thereto.
  • the number of network devices and terminal devices included in the communication system may be other numbers.
  • the basic time unit of downlink resource scheduling in a 5G mobile communication system is a slot, and one slot is composed of 7 or 14 symbols in the time domain, and one slot can be divided into a control area and a data area.
  • the data area is used to send a physical downlink shared channel (PDSCH) that carries downlink data.
  • the control area is configured to send a physical downlink control channel (PDCCH), and the PDCCH is used to carry downlink control information (DCI).
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • the time-frequency resource used by the PDSCH is composed of one or more resource blocks (RBs) in the frequency domain, and each RB is composed of one symbol in the time domain of 12 consecutive subcarriers in the frequency domain, wherein one sub-frequency domain A symbol on the carrier and time domain is called a Resource Element (RE); in order to correctly receive the PDSCH, the UE needs to demodulate the PDCCH first.
  • the DCI carried by the PDCCH includes location information indicating that the RB used by the PDSCH is in the time-frequency domain, that is, downlink resource allocation information.
  • CORESET control resource sets
  • the UE can detect the PDCCH on the one or more CORESETs, as shown in FIG. 2, in the control area of the time slot.
  • the PDCCH corresponds to one or more Control Channel Elements (CCEs); for example, one PDCCH may correspond to 1, 2, 4, 8, or 16 CCEs.
  • the number of CCEs corresponding to one PDCCH is also referred to as the aggregation level of the PDCCH.
  • the base station can select different aggregation levels according to the channel conditions of the UE, and change the code rate of the channel coding corresponding to the PDCCH, so that link adaptation can be implemented.
  • Each CCE may contain one or more Control Resource Element Groups (REGs), which may be, for example, 6 or 4 REGs.
  • the REG is used to define a mapping of the PDCCH to the resource unit RE, and equivalently, or to define a mapping of the CCE to the RE corresponding to the PDCCH.
  • Each REG may correspond to one Resource Block (RB).
  • RB Resource Block
  • the set of RBs that can be used by the control channel of each UE may be predefined, for example, the bandwidth specified by the carrier center is predefined for transmitting or receiving the control channel, or may be notified by higher layer signaling, for example, by using RRC signaling to notify the UE.
  • Control resource set CORESET
  • mapping of CCE to REG is as follows: localized and distributed; time-first and frequency-first.
  • the REGs constituting the CCE are continuous in the frequency domain or the time domain.
  • the REGs constituting the CCE are discrete or partially continuous in the frequency domain or the time domain.
  • the mapping order of the CCEs mapped to the REGs is the first-time domain and the subsequent frequency domain.
  • the mapping order of the CCEs mapped to the REGs is The first time domain after the frequency domain.
  • multiple REGs in the frequency domain or the time domain may be combined into one REG set, or multiple REGs in the frequency domain or the time domain may be bundled together to form one REG bundle ( Bundle).
  • the REG set or the REG bundle may also be referred to as an REG group.
  • the specific name of the REG set is not limited in this application. Since the PDCCH is mapped to the REG through the CCE, multiple REGs corresponding to each CCE are bundled together to form one or more REG sets.
  • the UE may utilize the REG set instead of the DMRS available in a single REG for joint channel estimation to provide channel estimation accuracy.
  • Figure 3 shows two possible DMRS patterns, one of which contains 2 or 4 REs for DMRS.
  • the DMRS and DCI transmitted in the same REG will use the same precoder, so that the UE can obtain the channel estimation corresponding to the DCI directly from the DMRS.
  • Joint channel estimation using the REG set or the DMRS on the REG in the REG beam provided that each REG included therein has channel correlation in the time domain and/or frequency domain, so that the above time domain and/or frequency domain can be utilized Joint channel estimation is performed on the channel correlation, for example, using Least Squared or Minimum Mean Squared Error (MMSE) criteria.
  • MMSE Minimum Mean Squared Error
  • the REG set or the REG bundle includes channel correlations in the time domain and/or the frequency domain. Sex cannot be known by the UE. Therefore, the UE can perform joint channel estimation using the same precoding matrix based on each REG in the REG bundle, and the REGs in the REG bundle are continuous in the time domain and/or the frequency domain, so that the binding can be utilized in the REG set or Multiple DMRSs available in the REG beam are used for joint channel estimation to improve channel estimation accuracy.
  • FIG. 4 shows a centralized and frequency-prioritized CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain bundling size of the six REGs is three REGs, and the time domain bundling size is one REG.
  • FIG. 5 shows another centralized and frequency-prioritized CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is six REGs, and the time domain binding size is one REG.
  • FIG. 6 shows a distributed and frequency-prioritized CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is 2 REGs, and the time domain binding size is 1 REG.
  • FIG. 7 shows another distributed and frequency-prioritized CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is three REGs, and the time domain binding size is one REG.
  • FIG. 8 shows a centralized and time-first CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is 2 REGs, and the time domain binding size is 3 REGs.
  • FIG. 9 shows another centralized and time-first CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is three REGs, and the time domain binding size is two REGs.
  • FIG. 10 shows a distributed and time-first CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is 1 REG, and the time domain binding size is 2 REGs.
  • FIG. 11 shows another distributed and time-first CCE-REG mapping method provided by the present application.
  • the control channel is composed of two CCEs, namely CCE0 and CCE1, and each CCE is composed of 6 REGs.
  • the frequency domain binding size of the six REGs is one REG, and the time domain binding size is three REGs.
  • REG set or the REG bundles shown in FIG. 4 to FIG. 11 may be continuous or discontinuous in the frequency domain.
  • the binding size limits the resource granularity of the control channel that can be mapped in the frequency domain or the time domain.
  • the frequency domain binding size is 1 REG
  • the time domain binding size can be 2 or 3 REGs
  • the frequency domain binding size is 2 REGs
  • the time domain binding size can be 1 or 3 REGs
  • the frequency domain binding size is 3 REGs
  • the time domain binding size can be 1 or 2 REGs
  • the frequency domain binding size is 6 REGs
  • the time domain binding size can be 1 REG.
  • the REG set or the REG beam pattern in a specific embodiment may be patterned as 0 or 1 or 2 or 3 in FIG. 12; or, a specific In the embodiment, the REG set or the REG beam pattern may be patterned as 0 or 1 in FIG. 13; or, in a specific embodiment, the REG set or the REG beam pattern may be patterned as 0 or 1 in FIG. 14; wherein each REG The REGs given in the set or REG beam pattern are continuous in time or / and frequency;
  • FIG. 15 shows that the present application provides a communication method, and an execution subject thereof may be a base station.
  • the method 100 includes:
  • S110 Determine the number and location of CCEs used by the user equipment UE control channel, where each CCE corresponds to multiple resource unit groups REG, and the multiple REGs form at least one REG set, and the at least one REG set Any one of the REG sets includes a plurality of resource blocks RB that are consecutive or adjacent in the time domain or the frequency domain.
  • control channel may carry scheduling allocation or other control information.
  • control channel may be, for example, a PDCCH, or may be another control channel for transmitting control information.
  • the specific name of the control channel is not limited in this application.
  • the number of CCEs used by the user equipment UE control channel may be determined by the base station according to the channel conditions of the UE; for example, the user equipment UE control channel may use 1 or 2 or 4 or 8 or 16 CCEs.
  • the number of different CCEs corresponds to the coding rate of different control channels.
  • the base station can learn the channel condition of the UE, especially the signal to noise ratio SNR, according to a Channel Quality Indicator (CQI) fed back by the UE.
  • CQI Channel Quality Indicator
  • performance requirements such as block error rate BLER or bit error rate BER
  • the number of CCEs to be used to meet performance requirements is obtained based on the performance of the channel coding of the control channel, such as the SNR and bit error rate curves.
  • the CCE location used by the user equipment UE control channel may be multiple CCEs starting from a certain CCE index.
  • the starting location may be derived according to a predefined identity rule or function according to a UE identification ID or a slot index or a symbol index or an aggregation level.
  • the starting location may be derived from an LTE PDCCH or EPDCCH starting location index function. It will not be described in further detail here.
  • the solution for determining the number and location of CCEs in the present invention can be flexibly selected according to the actual requirements of the transmission control information, which is not limited by the present invention.
  • the number and position of the CCEs may be as shown in FIGS. 4 to 11.
  • the REG indexes or numbers shown in FIGS. 4 to 11 are numbered according to the CCE index. The invention is not limited by this number.
  • the REG index may be numbered in ascending order of the frequency domain position according to the order of the time domain in the first frequency domain; or may be numbered in the order of the frequency domain in the first time domain.
  • the CCE index is mapped to the relevant REG index.
  • the user equipment determines the number and location of the control channel unit CCEs used by the control channel of the UE, where each of the CCEs corresponds to multiple resource unit groups REG, and the multiple REGs form at least one REG set. Any one of the at least one REG set includes a plurality of resource blocks RB that are consecutive or adjacent in the time domain or the frequency domain. .
  • the user equipment determines the number and location of CCEs according to different aggregation levels and the number of candidate candidates for the control channel, where each aggregation level contains a different number of CCEs.
  • the process of determining the starting position and the number of CCEs by the user equipment in the existing LTE system may be referred to, and details are not described herein again.
  • the user equipment receives, by using the CCE, a control channel sent by the network device.
  • each of the CCEs corresponds to multiple resource element groups REG, for example, the CCEs may correspond to 6 or 4 REGs; the multiple REGs constitute at least one REG set or REG bundle, and the at least one REG Any one of the REG sets or REG beams in the set or REG bundle includes a plurality of resource blocks RB that are consecutive or adjacent in the time domain or the frequency domain; as shown in FIGS. 4, 5, 6, and 7, the CCEs respectively include 2, 1 3, 2 and 2 REG sets or REG beams, wherein each REG set or REG bundle comprises 3, 6, 3 and 2 REGs in succession or proximity in the frequency domain, respectively.
  • the CCEs respectively comprise 1, 1, 3 and 2 REG sets or REG beams, wherein each REG set or REG beam comprises time domain or time domain and frequency domain respectively Continuous, adjacent 6, 6, 3, and 2 REGs.
  • each REG set or a plurality of REGs in the time domain or frequency domain that are consecutive or adjacent in the REG bundle may constitute different patterns formed in time or frequency domain.
  • the REG set or REG beam therein includes REGs in the frequency or time domain or in the frequency domain and the time domain, consecutive or adjacent.
  • the REG set or the REG in the REG bundle may correspond to one physical resource block RB.
  • the proximity in the frequency domain refers to that a plurality of RBs configured in the control resource set may be discontinuous in the frequency domain, but the indexes may be consecutive after being arranged in ascending or descending order of the frequency domain.
  • the proximity in the time domain as used herein means that a plurality of RBs configured in the control resource set may be discontinuous in the time domain, but the indexes may be consecutive after being arranged in ascending or descending order of time domain.
  • the REG set or the REG in the REG bundle is continuous or adjacent in at least one dimension in the time domain and the frequency domain, so that multiple channel DMRSs in the bound REG can be utilized for joint channel estimation, thereby improving channel estimation accuracy.
  • the channel estimation algorithm generally obtains channel estimation based on the correlation between the location where the DMRS corresponds to the RE and the location of the DCI corresponding RE in time and/or frequency.
  • the channel estimation process generally includes two basic steps: first, based on a predefined or previously known DMRS sequence, using the least squares method to obtain an estimated value of the channel where the DMRS corresponds to the RE; and second, based on the DMRS corresponding RE Corresponding to the location and/or frequency of the location of the RE corresponding to the DCI, using the least mean square error estimation algorithm to derive the channel estimation value of the location where the DC corresponding RE is located from the estimated value of the channel where the DMRS corresponds to the RE;
  • the correlation of time and/or frequency of the wireless channel between different RE positions is usually based on channel statistics.
  • the frequency domain correlation can be obtained based on characteristics of multipath delay such as delay spread, variance, etc.; time domain correlation It can be obtained based on the direction distribution of the multipath and the Doppler shift characteristic.
  • the channel estimation algorithm based on time or frequency correlation is a prior art, and the present invention does not limit the specific implementation.
  • the channel estimation value of the location where the DCI corresponds to the RE is usually a weighted combination of the estimated values of the channels where the DMRS corresponds to the location of the RE, and the available DMRS is more More
  • the time domain or frequency domain correlation the channel estimation value of the location where the DC corresponding to the RE is located can be determined more accurately.
  • each CCE corresponds to multiple resource element groups REG, and multiple REGs constitute at least one REG set, and any one of the at least one REG set includes multiple consecutive or adjacent ones in the time domain or the frequency domain.
  • Resource block RB Resource block RB.
  • the DMRS in multiple consecutive or neighboring REGs in the REG set can be fully utilized, and the joint channel estimation is performed by using multiple resource blocks adjacent to the frequency domain and/or DMRSs on multiple symbols in the time domain, thereby effectively improving the performance of channel estimation. .
  • the channel coding may be a convolutional code, a turbo code, a Polar code, an LDPC code, etc.; wherein the channel coding may perform rate matching according to actual conditions;
  • mapping a complex symbol sequence corresponding to one or more CCEs corresponding to the physical channel to each RE in the corresponding REG; mapping the complex symbol sequence corresponding to the CCE to a specific RE transmission is a prior art, and is not detailed here. Said.
  • the user equipment receives the control channel sent by the network device by using the CCE, and specifically includes:
  • the DCI is determined based on the CRC check result.
  • control information about how the user equipment obtains the control channel bearer according to the received complex signal sequence is a prior art, and details are not described herein again.
  • the method 100 further includes:
  • Step A The network device determines the at least one REG set from a set of control resources according to a REG binding size or a REG binding pattern.
  • the control resource set includes a resource block set for transmitting a control channel.
  • Step B The user equipment determines the at least one REG set from a set of control resources according to a REG binding size or a REG binding pattern.
  • the set of control resources includes a set of resource blocks for receiving a control channel.
  • the set of control resources may be predefined, for example, specifying a plurality of consecutive or discrete RBs and a plurality of symbols in time as a set of control resources in a predefined location of the frequency band.
  • the predefined set of control resources may be band specific;
  • control resource set may be notified to the UE by signaling, for example, by using RRC signaling to notify the UE to control the number and location of the RBs included in the resource set by a length of time; the specific RB position may be a RB by a generalized combination number Index coding is obtained; the length of time can be 1, 2 or 3 OFDM symbols.
  • the set of control resources may be predefined, for example, specifying a plurality of consecutive or discrete RBs and a plurality of symbols in time as a set of control resources in a predefined location of the frequency band.
  • the predefined set of control resources may be band specific;
  • control resource set may also be obtained by combining the foregoing two: a plurality of control resource sets specific to a predefined frequency band (Band); and one or more control resource sets thereof are indicated by RRC signaling.
  • Band predefined frequency band
  • Each RB in the control resource set may correspond to one REG.
  • the REGs corresponding to the control resource set may be sorted according to the pre-frequency domain and the time domain, and are arranged in ascending order of the frequency domain; for example, for 2 symbols in the time domain and 24 RBs in the frequency domain, a total of 48 RBs, and the REG index number thereof is as follows.
  • the REGs corresponding to the control resource set may be sorted according to the first-time domain and the subsequent frequency domain, and are arranged in ascending order of the frequency domain; for example, for 2 symbols in the time domain and 24 RBs in the frequency domain, a total of 48 RBs
  • the REG index number is as shown in FIG. 17; the following may be sorted in the frequency domain ascending order according to the pre-frequency domain and the time domain sorting, but the present invention is not limited thereto.
  • the BFD size of the REG may include a REG frequency domain bundling size and/or a REG time domain bundling size.
  • the REG frequency domain bundling size may be 2 or 3 or 6, as shown in FIG. 5 is shown.
  • the REG time domain binding size can be 2 or 3, as shown in Figures 10 and 11.
  • the REG time domain and frequency domain bundling size can be 6, as shown in Figures 8 and 9.
  • the REG beam or REG binding pattern can be as shown in Figures 12, 13 and 14.
  • Figure 12 shows the pattern of 1, 2, 3, and 6 REGs bound in the frequency domain
  • Figure 13 shows the pattern of binding 2 symbols in the time domain and 1 or 3 REGs in the frequency domain
  • Figure 14 gives The time domain is bound to 3 symbols and the frequency domain is bound to 1 or 2 REG patterns;
  • the REG binding size is predefined; for example, it may be based on a predefined set of control resources, that is, a specific REG binding size of the control resource set; or may be predefined based on the search space, such as a common search space and a UE specific Search space specific REG binding size;
  • the REG binding pattern may be predefined, as shown in FIGS. 12, 13, and 14;
  • the number of consecutive or adjacent REGs in the frequency domain or the time domain can be obtained from the REG binding size or the REG binding pattern.
  • the REG binding size or REG binding pattern may be predefined based on a control resource set or a search space, and thus is well known to the base station and the user equipment;
  • the REG binding size or the REG binding pattern may also be notified to the UE by the base station, for example, by using high layer signaling, such as RRC signaling, to notify the UE. Specifically, for example, the UE may be notified based on the control resource set or the search space configuration information;
  • any one of the at least one REG set meets at least one of the following conditions,
  • m is a positive integer
  • n symbols consecutive or adjacent in the time domain
  • n is a positive integer
  • n can take values 1, 2, 3, 6, 12, etc. or 2, 4, 8, 16;
  • the proximity in the frequency domain refers to that a plurality of RBs configured in the control resource set may be discontinuous in the frequency domain, but the indexes may be consecutive after being arranged in ascending or descending order of the frequency domain.
  • the proximity in the time domain as used herein means that a plurality of RBs configured in the control resource set may be discontinuous in the time domain, but the indexes may be consecutive after being arranged in ascending or descending order of time domain.
  • the determining the at least one REG set from the control resource set according to the REG binding size or the preset REG binding pattern may include:
  • the REG index is based on the pre-frequency domain post-time domain or the pre-time domain post-frequency domain number;
  • the 24 REG sets or REGs shown in FIG. 18 can be obtained.
  • the REG set or the REG bundle 0 is composed of REG0,1;
  • the REG set or the REG bundle 1 is composed of REG2,3, and can be analogized in turn;
  • REG sets or REG bundles shown in 19 for example, REG sets or REG bundles 0 consist of REG0, 1, 2, 24, 25, 26; REG sets or REG bundles 1 by REG3, 4, 5, 27, 28 , 29 constitutes, ..., in turn, can be analogized;
  • a time-frequency location of the plurality of REGs corresponding to each of the CCEs is determined according to an index of a REG corresponding to an index of each of the CCEs.
  • the index of the CCE may correspond to multiple consecutive REG indexes in sequence.
  • the CCE index sequentially corresponds to an index of six consecutive REGs.
  • an index of each of the CCEs corresponds to at least one interleaved REG index.
  • the interleaved REG index is obtained according to the REG binding size or REG binding pattern or REG set.
  • the interleaved REG index is obtained by interleaving the REG index corresponding to the control resource set according to the REG binding size or the REG binding pattern. Equivalently, the interleaved REG index is obtained by interleaving the REG index corresponding to the control resource set according to the REG set or the REG bundle.
  • the REG set or the REG bundle formed by binding the REG binding size or the REG binding pattern may be the interleaved granularity.
  • 24 REG sets or REG beams can be formed, and each CCE corresponds to 3 REG sets or REG beams, that is, 6 REGs.
  • the REG set or the REG bundle is the interleaved granularity, that is, the index of the REG set or the REG corresponding to the REG bundle is formed into an N-tuple, where N is the number of REG sets or the number of REGs corresponding to the REG bundle, for all Ns
  • the tuples are interleaved.
  • interleaving with the REG set or the REG beam as the interleaved granularity may include
  • the interleaved REG index is determined according to the interleaved REG set or the index corresponding to the REG bundle.
  • a travel listed interleaver can be used, where inter-column rearrangement based on bit inversion can be used.
  • the interleaver principle is similar to the interleaver used by LTE convolutional codes or Turbo codes. Specifically, including
  • the number of columns may be predefined, for example 32 or 16 columns, or may be notified to the UE by the base station by signaling RRC; the number of columns may be control resource set or search space specific.
  • the number of rows N R of the interleaving matrix used by the interleaver is obtained, which is a minimum integer not less than Q, where Q is the number of REG sets or REG beams divided by the interleaving matrix columns.
  • Q is the number of REG sets or REG beams divided by the interleaving matrix columns.
  • N-tuple corresponding to the REG set or the REG bundle is sequentially written into the matrix according to the row, starting at row 0 column 0; if N R >Q, that is, not divisible, the unnecessary position in the last row is filled with NULL;
  • the columns of the above matrix are rearranged according to the specified inter-column interleave pattern.
  • the inter-column interleaving pattern may be based on bit reverse.
  • the column interleaving pattern corresponding to 32 columns is as follows, where ⁇ P(0), P(1), . . . , P(N C -1)> is The position index of the column after interleaving.
  • an index of the REG set or the REG bundle after interleaving is obtained, as shown in FIG. 20.
  • the REG set or the REG bundle index corresponding to CCE0 is 0, 16, and 8, respectively, corresponding to the REG index of 0, 1, 32, 33, 16, and 17.
  • the REG or REG set or the REG bundle corresponding to one CCE or the control channel is distributed at different times or frequencies, so that the time or frequency selectivity of the wireless channel can be fully utilized, and thus time or frequency diversity gain can be obtained.
  • the REG on each symbol in the control resource set may be interleaved.
  • the REGs on the two symbols shown in FIG. 18 are respectively interleaved to obtain an index of the REG set or the REG bundle and the corresponding REG index is as shown in FIG. 21.
  • frequency-prioritized CCE to REG mapping can be implemented;
  • the REG or REG set or the REG bundle corresponding to one CCE or control channel is distributed on the same symbol but different frequencies.
  • the frequency diversity gain can be obtained;
  • the control channel can be located on a single symbol. Therefore, fast hybrid automatic repeat (HARQ) acknowledgment (ACK/NACK) feedback can be implemented; at the same time, the URLLC service scenario is particularly applicable;
  • HARQ hybrid automatic repeat
  • time-prioritized CCE to REG mapping can be implemented according to the REG binding size or the REG binding pattern; as shown in FIG. 22, the REG binding pattern corresponds to the REG time domain binding 2 REG. All REGs in the control resource set are interleaved according to the REG binding size or the REG binding pattern.
  • time-first CCE to REG mapping can be implemented;
  • a CCE or a REG set or a REG bundle corresponding to a control channel may implement a time-prioritized CCE-to-REG mapping.
  • a frequency diversity gain may be acquired;
  • the control channel may be located on different symbols. The power headroom of each of the symbols can be utilized to perform power boosting on the control channel, especially the DMRS therein, thereby improving channel estimation performance and enhancing coverage of the control channel;
  • the REG binding size or the REG binding pattern is bound according to the time domain and the frequency domain; as shown in FIG. 23, the REG binding pattern corresponds to the REG time domain binding 2 REGs and Bind 3 REGs in the frequency domain. According to the REG binding size or the REG binding pattern, all the REGs in the control resource set are interleaved, and the CCE granularity interleaving can be actually realized.
  • the REG set or the REG bundle is used as the interleaved granularity, and the REG corresponding to the resource control set is interleaved.
  • the joint channel estimation is performed by using the REG set or the intra-beam DMRS, so that the accuracy of the channel estimation is improved, and at the same time, the different REGs in one REG set or the REG bundle can be effectively distributed to different CCEs, thereby effectively reducing the receiving complexity.
  • the granularity of the above-mentioned REG beam to be interleaved may be obtained based on a predefined or configuration, so that the resource granularity of the control channel may be matched with the resource granularity of the data channel.
  • the CCEs that actually use the control channel may occupy only part of the time-frequency resources in the control channel resource set, and may also occupy all the time-frequency resources.
  • a reference signal and a DCI for demodulating a control channel are located only in a control region in which a control resource set is located, and when no control information is transmitted, the base station does not transmit a reference in a time-frequency resource region in which the control channel is transmitted. Signal and DCI. Therefore, in the control channel resource set, if the CCE does not occupy all the control channel resource sets, the remaining control channel resources in the control channel resource set can be used to transmit the PDSCH.
  • the used CCEs that actually receive the control channel may occupy only part of the time-frequency resources in the control channel resource set, and may also occupy all the time-frequency resources.
  • the reference signal and DCI for demodulating the control channel are only located in the control region where the control resource set is located, and when the base station does not transmit the control information, the base station does not transmit in the time-frequency resource region of the transmission control channel. Reference signal and DCI. Therefore, in the control channel resource set, if the CCE does not occupy all the control channel resource sets, the remaining control channel resources in the control channel resource set can be used to receive the PDSCH.
  • the interleaved REG index is obtained according to the REG binding size or the REG binding pattern or the REG set, and may further include: according to the REG binding size or REG binding pattern or REG The set, the REG index corresponding to the control resource set is grouped, where the REG index included in each packet corresponds to multiple REG sets or REG bundles;
  • the set of REGs in one of the packets may overlap with the set of REGs in other packets, or may not overlap each other.
  • the REG index within each packet is interleaved according to the REG bundling size or REG binding pattern or REG set.
  • the REGs within one packet are interleaved according to the granularity of the REG set or the REG beam.
  • the interleaved REG index is obtained from the interleaved REG set or the REG bundle index.
  • the method 100 includes
  • Step C Perform packet interleaving on the REG set or the REG bundle corresponding to the control resource set according to the REG binding size or the REG binding pattern, to obtain an interleaved REG set or a REG bundle index.
  • Step D Determine the interleaved REG index according to the interleaved REG set or the index of the REG bundle.
  • the REGs in each of the packets may be interleaved according to the REG set or the REG bundle.
  • the foregoing robin listed interleaver may be used, wherein the columns may be rearranged. In addition, it will not be further detailed.
  • the REGs corresponding to the resource control set are grouped according to the REG binding size or the REG binding pattern, and the REG set or the REG bundle is interleaved in each packet.
  • the joint channel estimation can be performed by using the REG set or the REG intra-band DMRS, thereby improving the channel estimation accuracy, and at the same time, effectively reducing resource conflicts between CCEs corresponding to different packets, thereby effectively avoiding resources between different control channels. collision.
  • the above-mentioned REG beam is interleaved granularity can be obtained based on a predefined or configuration, so that the resource granularity of the control channel can be matched with the resource granularity of the data channel.
  • the control channel and the data channel can be separately multiplexed with different control resource regions, thereby effectively improving resource utilization efficiency.
  • the REG set or the REG bundle corresponding to the control resource set is packet-interleaved according to the REG binding size or the REG binding pattern, including but not limited to the following two modes:
  • the REGs in the respective symbols of the control resource set are respectively interleaved.
  • the REG on each symbol in the control resource set constitutes one packet.
  • the REG set or the REG bundle is used as the interleaved granularity.
  • the REGs on the two symbols shown in FIG. 18 are respectively interleaved to obtain an index of the REG set or the REG bundle and the corresponding REG index is as shown in FIG. 21.
  • frequency-prioritized CCE to REG mapping can be implemented;
  • the REG or REG set or the REG bundle corresponding to one CCE or control channel is distributed on the same symbol but different frequencies.
  • the frequency diversity gain can be obtained; on the other hand, the control channel can be located on a single symbol. Therefore, fast hybrid automatic repeat (HARQ) acknowledgement (ACK/NACK) feedback can be implemented; at the same time, the URLLC service scenario is particularly applicable; in addition, resource collision between different control channels can be effectively reduced.
  • HARQ hybrid automatic repeat
  • all REGs corresponding to the control resource set are grouped at equal intervals according to the REG set, and each group is interleaved with the REG set as granularity.
  • the REG frequency domain binding size is 3 or the REG binding pattern has a frequency domain binding size of 3, as shown in Figure 24.
  • the REG frequency domain binding size is 2 or the REG binding pattern has a frequency domain binding size of 2, as shown in FIG. 25.
  • the REG time domain binding size is 2 or 3 or the time domain binding size in the REG binding pattern is 2 or 3, as shown in FIG.
  • the REG frequency domain binding size is 4 or the REG binding pattern has a frequency domain binding size of 4, as shown in FIG.
  • the REG frequency domain binding size is 2 or the REG binding pattern has a frequency domain binding size of 2, as shown in FIG.
  • the REG time domain binding size is 2 or 3 or the time domain binding size is 2 or 3 in the REG binding pattern, as shown in FIG.
  • each packet can be independently interleaved.
  • only one of the packets may be interleaved, the other packets are cyclically shifted by an index obtained by completing the interleaved packet and an offset equal to the packet length is introduced.
  • the REG index after packet 1 interleaving is 0, 8, 4, 2, 10, 6, 1, 9, 5, 3, 11, 7;
  • the index of packet 2 can be 3+12, 11+12, 7+ 12,0+12,8+12,4+12,2+12,10+12,6+12,1+12,9+12,5+12.
  • the 5G NR allows the traffic channel to multiplex the resources of the control channel.
  • the base station configures a Control Resource Set (CORESET) that can be used by the user equipment (User Equipment, UE) through high-level signaling, such as Radio Resource Control (RRC) signaling.
  • CORESET Control Resource Set
  • RRC Radio Resource Control
  • the timing of each control channel transmission depends on the channel conditions and the control channel format or payload.
  • the physical resources actually used by the control channel will be part of the configured control resource set CORESET.
  • other resources in the control resource set CORESET can be used for a traffic channel such as a Physical Downlink Shared Channel (PDSCH).
  • PDSCH Physical Downlink Shared Channel
  • the REGs corresponding to the resource control set are grouped according to the REG binding size or the REG binding pattern, and the REG set or the REG bundle is interleaved in each packet.
  • the joint channel estimation can be performed by using the REG set or the REG intra-band DMRS, thereby improving the channel estimation accuracy, and at the same time, effectively reducing resource conflicts between CCEs corresponding to different packets, thereby effectively avoiding resources between different control channels. collision.
  • the above-mentioned REG beam is interleaved granularity can be obtained based on a predefined or configuration, so that the resource granularity of the control channel can be matched with the resource granularity of the data channel.
  • the control channel and the data channel can be separately multiplexed with different control resource regions, thereby effectively improving resource utilization efficiency.
  • the REG index after the interleaving is obtained by performing packet interleaving on the REG corresponding to the control resource set according to the configuration information of the control resource set.
  • the configuration information of the control resource set may be a REG binding size or a REG binding pattern or a number of resource blocks or a number of symbols in a control resource set.
  • the base station performs the packet interleaving by using an interleaver, and the method 100 further includes:
  • Step E The network device determines, according to the resource size of the control resource set, the number of columns of the interlace matrix used by the interleaver.
  • Step F The user equipment determines, according to the resource size of the control resource set, the number of columns of the interlace matrix used by the interleaver.
  • Step F The network device notifies the UE of the number of columns of the interlace matrix used by the interleaver by using the indication information.
  • the indication information may be high layer signaling, such as RRC signaling or MAC cells.
  • Step G The user equipment receives the indication information sent by the network device, where the indication information is used to notify the UE of the number of columns of the interlace matrix used by the interleaver.
  • the indication information may be high layer signaling, such as RRC signaling or MAC cells.
  • the network device determines the number of columns of the interlace matrix used by the interleaver according to the current resource usage situation and the channel condition of the UE.
  • the channel condition of the UE is poor, for example, when the cell is located at the edge of the cell, the control channel uses more physical resources, and the number of corresponding CCEs is larger.
  • the number of columns of the interleaver is appropriately increased.
  • the network device After determining the number of columns of the interlace matrix, the network device notifies the UE of the number of columns of the interlace matrix used by the interleaver by the indication information.
  • the REGs corresponding to the resource control set are grouped according to the REG binding size or the REG binding pattern, and the REG set or the REG bundle is interleaved in each packet.
  • the joint channel estimation can be performed by using the REG set or the REG intra-band DMRS, thereby improving the channel estimation accuracy, and at the same time, effectively reducing resource conflicts between CCEs corresponding to different packets, thereby effectively avoiding resources between different control channels. collision.
  • the above-mentioned REG beam is interleaved granularity can be obtained based on a predefined or configuration, so that the resource granularity of the control channel can be matched with the resource granularity of the data channel.
  • the control channel and the data channel can be separately multiplexed with different control resource regions, thereby effectively improving resource utilization efficiency. It should be noted that the steps C and D described in the foregoing may be performed by the network device or by the user equipment.
  • FIG. 30 is a schematic diagram of a network device 400 according to an embodiment of the present disclosure.
  • the network device 400 can be applied to the scenario shown in FIG. 1 for performing the method 100 corresponding to FIG.
  • the network device 400 includes a processing unit 401 and a transceiver unit 402.
  • the transceiver unit 402 is specifically configured to perform various types of information transmission and reception performed by the network device in the foregoing method 100.
  • the processing unit 401 is specifically configured to perform other processing in addition to information transmission and reception of the network device in the foregoing method 100.
  • the processing unit 401 is configured to determine the number and location of control channel units CCEs used by the control channel of the user equipment, where each of the CCEs corresponds to multiple resource unit groups REG, and the multiple REGs form at least one REG set. And any one of the at least one REG set includes a plurality of physical resource blocks PRBs in at least one dimension in the time domain and the frequency domain, wherein the REGs in the any one of the REG sets are in one-to-one correspondence with the PRBs, Multiple PRBs belong to a set of control channel resources.
  • the transceiver unit 402 is configured to send control information to the user equipment by using the CCE determined by the processor.
  • the transceiver unit 402 can be implemented by a transceiver
  • the processing unit 401 can be implemented by a processor.
  • network device 500 can include a processor 501, a transceiver 502, and a memory 503.
  • the memory 503 can be used to store a program/code pre-installed when the network device 500 is shipped from the factory, and can also store code and the like for execution of the processor 501.
  • the network device 500 may correspond to the network device in the method 100 according to the embodiment of the present application, where the transceiver 502 is configured to perform various information transmission and reception performed by the network device in the method 100, and process The device 501 is configured to perform other processing than the information transmission and reception of the network device in the method 100. I will not repeat them here.
  • FIG. 32 shows a schematic structural diagram of a network device 20, which may be, for example, a base station.
  • the network device 20 is applicable to the system as shown in FIG. 1 for performing the method corresponding to FIG.
  • the network device 20 includes one or more remote radio units (RRUs) 201 and one or more baseband units (BBUs) 202.
  • RRU 201 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 2011 and a radio frequency unit 2012. .
  • the RRU 201 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for performing various information transceiving performed by the network device in the above method 200 or 300.
  • the BBU 202 part is mainly used for performing baseband processing, controlling network devices, and the like.
  • the RRU 201 and the BBU 202 may be physically disposed together or physically separated, such as a distributed base station.
  • the BBU 202 is a control center of a network device, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU processing unit
  • the BBU can be used to control other processing than the processing of information transmission and reception in the network device performing method 100.
  • the BBU 202 may be composed of one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access modes of wireless. Access Network.
  • the BBU 202 also includes a memory 2021 and a processor 2022.
  • the memory 2021 is used to store necessary instructions and data.
  • the memory 2021 stores the codebook C1, C2, and/or the codebook C in the above embodiment.
  • the processor 2022 is configured to control the network device to perform necessary actions, such as for controlling the network device to perform other processing than the processing of the information in the method 200 or the method 300.
  • the memory 2021 and the processor 2022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor.
  • the necessary circuits are also provided on each board.
  • FIG. 33 is a schematic diagram of a terminal device 600 according to an embodiment of the present application.
  • the terminal device 600 can be applied to the scenario shown in FIG. 1 for performing the method shown in FIG.
  • the terminal device 600 includes a processing unit 601 and a transceiver unit 602.
  • the transceiver unit 602 is specifically configured to perform various types of information transmission and reception performed by the terminal device in the foregoing method 100.
  • the processing unit 601 is specifically configured to perform other processing in addition to information transmission and reception of the terminal device in the foregoing method 100.
  • the processing unit 601 is configured to determine the number and location of control channel units CCEs used by the control channel of the communication device, where each CCE corresponds to multiple resource unit groups REG, and the multiple REGs are composed. At least one REG set, any one of the at least one REG set includes a plurality of physical resource blocks PRB in at least one dimension in the time domain and the frequency domain, wherein the REG and the PRB are one by one in the any one of the REG sets Correspondingly, the plurality of PRBs belong to a control channel resource set.
  • the transceiver unit 602 is configured to receive control information from the network device by using the CCE determined by the processor.
  • the transceiver unit 602 can be implemented by a transceiver
  • the processing unit 601 can be implemented by a processor.
  • the terminal device 700 may include a processor 701, a transceiver 702, and a memory 703.
  • the memory 703 may be used to store a program/code pre-installed by the terminal device 700 at the time of shipment, or may store a code or the like for execution of the processor 701.
  • the terminal device 700 may correspond to the terminal device in the method 100 according to the embodiment of the present application, where the transceiver 702 is configured to perform various information transmission and reception performed by the terminal device in the method 100, and process The device 701 is configured to perform other processing in addition to information transceiving of the terminal device in the method 100. I will not repeat them here.
  • FIG. 35 provides a schematic structural diagram of a terminal device.
  • the terminal device can be used in the scenario shown in FIG. 1, and the method corresponding to FIG. 15 is performed.
  • FIG. 35 shows only the main components of the terminal device.
  • the terminal device 10 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit and the antenna together may also be called a transceiver, and are mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves, and receiving signaling indications and/or reference signals sent by the base station, for performing various information executed by the terminal device in the above method 100.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal device, executing the software program, and processing the data of the software program, for example, for supporting the terminal device to perform actions other than information transmission and reception in the method 100.
  • Memory is primarily used to store software programs and data.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 35 shows only one memory and processor for ease of illustration. In an actual user device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used for the entire terminal device. Control, execute software programs, and process data from software programs.
  • the processor in FIG. 9 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal device may include a plurality of baseband processors to accommodate different network standards, and the terminal device may include a plurality of central processors to enhance its processing capabilities, and various components of the terminal devices may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit having the transceiving function can be regarded as the transceiving unit 101 of the terminal device 10, and the processor having the processing function is regarded as the processing unit 102 of the UE 10.
  • the terminal device 10 includes a transceiver unit 101 and a processing unit 102.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 101 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 101 is regarded as a sending unit, that is, the transceiver unit 101 includes a receiving unit.
  • the transmitting unit exemplarily, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • the transceiver may be a wired transceiver, a wireless transceiver, or a combination thereof.
  • the wired transceiver can be, for example, an Ethernet interface.
  • the Ethernet interface can be an optical interface, an electrical interface, or a combination thereof.
  • the wireless transceiver can be, for example, a wireless local area network transceiver, a cellular network transceiver, or a combination thereof.
  • the processor may be a central processing unit (English: central processing unit, abbreviated: CPU), a network processor (English: network processor, abbreviated: NP) or a combination of CPU and NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (abbreviated as PLD), or a combination thereof.
  • the above PLD can be a complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD), field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA), general array logic (English: generic array Logic, abbreviation: GAL) or any combination thereof.
  • the memory may include a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); the memory may also include non-volatile memory (English: non-volatile memory).
  • read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, Abbreviation: SSD); the memory may also include a combination of the above types of memory.
  • bus interface which may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus interface can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver provides means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • a general purpose processor may be a microprocessor.
  • the general purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present application may be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art.
  • the storage medium can be coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium.
  • the storage medium can also be integrated into the processor.
  • the processor and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in the UE.
  • the processor and the storage medium may also be disposed in different components in the UE.
  • the size of the sequence number of each process does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be taken by the embodiment of the present application.
  • the implementation process constitutes any qualification.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

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Abstract

本申请提供了一种通信方法和通信装置，该方法包括：确定用户设备的控制信道所使用的控制信道单元CCE的个数和位置，其中，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；所述网络设备通过所述CCE向所述用户设备发送所述控制信道。根据本申请提供的通信方法和通信装置，可以提高信道估计的精度。

Description

通信方法和通信装置
本申请要求于2017年05月04日提交中国专利局、申请号为201710309835.9、申请名称为“通信方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及无线通信领域中的发送或接收控制信息的通信方法和通信装置。
背景技术
移动通信系统中，用户设备在下行控制信道所在的时频资源上检测下行控制信息，并根据检测到的下行控制信息确定发送/接收数据所对应的控制信息，例如，发送/接收数据所在的时频资源位置。现有技术中，参考信号的时频资源位置预先定义，用户设备根据参考信号的时频资源位置，接收参考信号，并根据接收到的信号进行信道估计。在现有LTE系统中，物理下行控制信道(Physical Downlink Control Channel,PDCCH)基于小区特定的参考信号(Cell specific Reference Signal,CRS)进行解调,其中，CRS分布于12个子载波和14个符号构成的资源块(Physical Resource Block,PRB)对内，并且CRS并不依赖于PDCCH的配置而不同，例如两天线对应的CRS占用16个资源单元，分布于一个PRB内的4个符号上；此外，LTE系统进一步引入了增强的物理下行控制信道(Enhanced PDCCH,EPDCCH)。LTE EPDCCH基于解调参考信号(Demodulation Reference Signal，DMRS)进行解调,其DMRS占用12个资源单元，分布于EPDCCH所使用的每个资源块中的12个子载波和4个符号上。
在目前正在标准化的第五代新空口(5th-generation New Radio，5G NR)移动通信系统中，控制信道对应一个或多个控制信道单元(Control Channel Element，CCE)，即，控制信道通过CCE映射到它所使用的物理时频资源上。一个CCE可以对应一定数量的资源单元组(Resource Element Group，REG)例如4个或者6个REG。一个REG对应一个物理资源块(Physical Resource Block，PRB)。与现有LTE系统不同的是，在5G NR中，一个PRB由频域上连续的12个子载波和时域上1个(而不是14或者12个)符号组成，即，一个PRB由12个资源单元(Resource Element，RE)组成。其中，每个RE占用1个子载波和一个符号。在一个REG所包括的12个RE中，有些RE承载用于解调控制信道的解调参考信号(Demodulation Reference Signal，DMRS)，有些RE承载下行控制信息。用户设备(User Equipment，UE)可以利用DMRS得到信道估计值，从而对下行控制信息进行解调和译码。与现有LTE PDCCH/EPDCCH不同的是，5G NR中的控制信道所使用的DMRS占用的资源开销非常有限，例如2个或者4个资源单元，并且仅位于它所使用的PRB或者REG内，并不能直接使用其它符号或者PRB内的参考信号。因此，5G NR 中的控制信道可使用的参考信号非常有限，实际上限制信道估计性能，从实际上导致难以满足控制信道的覆盖性能需求。
发明内容
有鉴于此，本申请提供了一种通信方法，可以提高控制信道的信道估计精度，从而提高了控制信息的传输可靠性。此外，该方法可以进一步提高控制信道和数据信道的资源复用效率。
一方面，提供了一种发送控制信息的通信方法，该方法包括：确定用户设备的控制信道所使用的控制信道单元CCE的个数和位置，其中，其中，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；通过所述CCE向所述用户设备发送所述控制信道。
一种可选的设计中，还包括：所述网络设备根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合，其中，所述控制资源集合包括用于发送所述控制信道的资源块RB集合，所述RB集合包括所述多个RB。
一种可选的设计中，所述REG绑定大小为基于搜索空间或者所述控制资源集合预定义的信息，和/或所述REG绑定图案为基于搜索空间或者所述控制资源集合预定义的信息
一种可选的设计中，每个所述CCE的索引对应多个交织后的REG索引,所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到。
一种可选的设计中，所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到，具体包括：根据所述REG绑定大小或所述REG绑定图案或者所述REG集合,对所述控制资源集合对应的REG索引进行分组,在每个分组内以REG集合为粒度进行交织。
一种可选的设计中，所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到，具体包括：根据所述REG绑定大小或REG绑定图案,对控制资源集合对应的所有REG集合进行分组交织。
一种可选的设计中，所述对控制资源集合对应的REG集合进行分组交织，具体包括：
对所述控制资源集合各个符号内的REG分别交织；或者
对所述控制资源集合对应的所有REG，按照所述REG集合进行等间隔分组，对每个分组以所述REG集合为颗粒度进行交织。
一种可选的设计中，所述网络设备使用交织器进行所述交织，所述方法还包括：
根据所述控制资源集合的资源大小确定所述交织器使用的交织矩阵的列数；和/或
向所述用户设备发送指示信息，所述指示信息用于指示所述交织器使用的交织矩阵的列数。
另一方面，提供了一种接收控制信息的通信方法，该方法包括：用户设备确定所述用户设备的控制信道所使用的控制信道单元CCE的个数和位置，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；
所述用户设备通过所述CCE从网络设备接收所述控制信道。
一种可选的设计中，还包括：所述用户设备根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合，其中，所述控制资源集合包括用于接收所述控制信道的资源块RB集合，所述RB集合包括所述多个RB。
一种可选的设计中，所述REG绑定大小为基于搜索空间或者所述控制资源集合预定义的信息，和/或所述REG绑定图案为基于搜索空间或者所述控制资源集合预定义的信息。
一种可选的设计中，每个所述CCE的索引对应多个交织后的REG索引,所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到。
一种可选的设计中，所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到，具体包括：
根据所述REG绑定大小或所述REG绑定图案或者所述REG集合,对所述控制资源集合对应的REG索引进行分组,在每个分组内以REG集合为粒度进行交织。
一种可选的设计中，所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到，具体包括：
根据所述REG绑定大小或所述REG绑定图案,对所述控制资源集合对应的REG集合进行分组交织。
一种可选的设计中，所述对控制资源集合对应的REG集合进行分组交织，具体包括：
对所述控制资源集合各个符号内的REG分别交织；或者
对所述控制资源集合对应的所有REG，按照所述REG集合进行等间隔分组，对每个分组以所述REG集合为颗粒度进行交织。
一种可选的设计中，所述用户设备使用交织器进行所述交织，所述方法还包括：
根据所述控制资源集合的资源大小确定所述交织器使用的交织矩阵的列数；和/或
接收所述网络设备发送的指示信息，所述指示信息用于指示所述交织器使用的交织矩阵的列数。
再一方面，本申请提供了一种网络设备，该网络设备可以实现上述方面所涉及方法中网络设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的单元或模块。
在一种可能的设计中，该网络设备的结构中包括处理器和收发器，该处理器被配置为支持该装置执行上述方法中相应的功能。该收发器用于支持该装置与其它网元之间的通信。该装置还可以包括存储器，该存储器用于与处理器耦合，其保存该装置必要的程序指令和数据。
再一方面，本申请提供了一种用户设备，该用户设备可以实现上述方面所涉及方法中用户设备所执行的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的单元或模块。
在一种可能的设计中，该用户设备的结构中包括处理器和收发器，该处理器被配置为支持该装置执行上述方法中相应的功能。该收发器用于支持该装置与其它网元之间的通信。该装置还可以包括存储器，该存储器用于与处理器耦合，其保存该装置必要的程序指令和数据。
再一方面，提供了一种通信系统，所述通信系统包括上述各个方面所述的网络设备和用户设备。
再一方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被用户设备的通信单元、处理单元或收发器、处理器运行时，使得网络设备执行上述实现方式中的方法。
再一方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被用户设备的通信单元、处理单元或收发器、处理器运行时，使得用户设备执行上述实现方式中的方法。
再一方面，本申请提供了一种计算机存储介质，用于储存为上述网络设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
再一方面，本申请提供了一种计算机存储介质，用于储存为上述用户设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
附图说明
图1是适用本申请的通信系统的示意图；
图2是本申请提供的一种控制资源集合的示意图；
图3是本申请提供的两种可能的DMRS的示意图；
图4是本申请提供的一种集中式和频率优先的CCE-REG映射方法的示意图；
图5是本申请提供的另一种集中式和频率优先的CCE-REG映射方法的示意图；
图6是本申请提供的一种分布式和频率优先的CCE-REG映射方法的示意图；
图7是本申请提供的另一种分布式和频率优先的CCE-REG映射方法的示意图；
图8是本申请提供的一种集中式和时间优先的CCE-REG映射方法的示意图；
图9是本申请提供的另一种集中式和时间优先的CCE-REG映射方法的示意图；
图10是本申请提供的一种分布式和时间优先的CCE-REG映射方法的示意图；
图11是本申请提供的另一种分布式和时间优先的CCE-REG映射方法的示意图；
图12是本申请提供的一种可能的REG集合图案；
图13是本申请提供的另一种可能的REG集合图案；
图14是本申请提供的再一种可能的REG集合图案；
图15是本申请提供的一种发送和接收控制信息的通信方法的示意图；
图16是本申请提供的一种REG索引的示意图；
图17是本申请提供的另一种REG索引的示意图；
图18是本申请提供的一种REG绑定大小的示意图；
图19是本申请提供的另一种REG绑定大小的示意图；
图20是本申请提供的一种交织后的REG集合的索引的示意图；
图21是本申请提供的另一种交织后的REG集合的索引的示意图；
图22是本申请提供的再一种交织后的REG集合的索引的示意图；
图23是本申请提供的再一种交织后的REG集合的索引的示意图；
图24是本申请提供的一种分组示意图；
图25是本申请提供的一种分组示意图；
图26是本申请提供的一种分组示意图；
图27是本申请提供的一种分组示意图；
图28是本申请提供的一种分组示意图；
图29是本申请提供的一种分组示意图；
图30是本申请提供的一种网络设备的示意图；
图31是本申请提供的一种网络设备的示意图；
图32是本申请提供的一种网络设备的示意图；
图33是本申请提供的一种用户设备的示意图；
图34是本申请提供的一种用户设备的示意图；
图35是本申请提供的一种用户设备的示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1示出了一种适用本申请的通信系统100。该通信系统100包括网络设备110和终端设备120，网络设备110与终端设备120通过无线网络进行通信，当终端设备120发送数据时，无线通信模块可对信息进行编码以用于传输，具体地，无线通信模块可获取要通过信道发送至网络设备110的一定数目的数据比特，这些数据比特例如是处理模块生成的、从其它设备接收的或者在存储模块中保存的数据比特。这些数据比特可包含在一个或多个传输块(也可称为信息块或数据块)中，传输块可被分段以产生多个编码块。
在本申请中，终端设备可称为接入终端、用户设备(user equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及5G通信系统中的用户设备。
网络设备可以是码分多址(code division multiple access，CDMA)系统中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站(node B，NB)，还可以是长期演进(long term evolution，LTE)系统中的演进型基站(evolutional node B，eNB)，还可以是5G通信系统中的基站(gNB)，上述基站仅是举例说明，网络设备还可以为中继站、接入点、车载设备、可穿戴设备以及其它类型的设备。
上述适用本申请的通信系统仅是举例说明，适用本申请的通信系统不限于此，例如，通信系统中包括的网络设备和终端设备的数量还可以是其它的数量。
为了便于理解本申请，在介绍本申请提供的发送控制信息的方法前，首先对本申请涉及的概念做简要介绍。
5G移动通信系统中下行资源调度的基本时间单元是一个时隙(slot)，一个时隙由时域上的7个或14个符号组成，一个时隙可划分为控制区和数据区。其中，数据区用于发送承载下行数据的物理下行共享信道(physical downlink shared channel，PDSCH)。控制区用于发送物理下行控制信道(physical downlink control channel，PDCCH)，PDCCH用于承载下行控制信息(downlink control information，DCI)。PDSCH所用时频资源在频域上由1个或者多个资源块(Resource Block，RB)组成，每个RB由频域上连续的12个子载波时域上一个符号组成，其中频域上一个子载波和时域上一个符号称之为一个资源单元 (Resource Element，RE)；为了正确接收PDSCH，UE需要先解调PDCCH。PDCCH携带的DCI中包含指示PDSCH所使用的RB在时频域上的位置信息，即下行资源分配信息。在一个时隙的控制区中，存在一个或者多个控制资源集(control resource set，CORESET)，UE可在这一个或者多个CORESET上去检测PDCCH，如图2所示，在时隙的控制区域中存在两CORESET，这两个CORESET在时域和频域上占用的资源大小可以不一样。
PDCCH对应于一个或者多个控制信道单元(Control Channel Element,CCE)；例如一个PDCCH可以对应1,2,4,8或者16个CCE。一个PDCCH对应的CCE的个数又称为PDCCH的聚合级别。基站可以根据UE的信道条件，选择不同的聚合级别，改变PDCCH对应的信道编码的码率，从而可以实现链路自适应。
每个CCE可以包含一个或者多个资源单元组(Control Resource Element Group,REG)，例如可以是6或者4个REG。REG用于定义PDCCH到资源单元RE的映射，等价地，或者说，定义PDCCH对应的CCE到RE的映射。每个REG可以对应于一个资源块(Resource Block，RB)。每个UE的控制信道可以使用的RB集合，可以是预先定义的，例如预先定义载波中心指定的带宽用于发送或者接收控制信道；也可以通过高层信令通知，如通过RRC信令通知UE的控制资源集合(control resource set，CORESET)。
CCE到REG的映射有如下几种方式：集中式(localized)和分布式(distributed)；时间优先(time-first)和频率优先(frequency-first)。
对于集中式的映射方式，组成CCE的REG在频域或者时域上是连续的，对于分布式的映射方式，组成CCE的REG在频域或者时域上是离散的或者部分连续的。
当PDCCH可以映射到多个符号上时，对于时间优先的映射方式，CCE映射到REG上的映射顺序是先时域后频域；对于频率优先的映射方式，CCE映射到REG上的映射顺序是先频域后时域。
为了提供信道估计的精度，可以将频域或者时域连续的多个REG组成一个REG集合，或者说，将频域或者时域连续的多个REG绑定(bundling)在一起组成一个REG束(bundle)。所述REG集合或者REG束(bundle)也可以称为REG组(group)，本申请对REG集合的具体名称不作限定。由于PDCCH通过CCE映射到REG，每个CCE对应的多个REG绑定(bundling)在一起组成一个或者多个REG集合。对于每个REG集合，UE可以利用所述REG集合而不是单个REG中可供使用的DMRS，进行联合信道估计，从而提供信道估计的精度。图3给出两种可能的DMRS图案，其中一个REG中含有2个或者4个RE用于DMRS。
需要指出的是，基于DMRS的控制信道，同一个REG中发送的DMRS和DCI将使用相同的预编码(precoder)，从而UE可以直接从DMRS得到DCI对应的信道估计。使用REG集合或者REG束中REG上的DMRS进行联合信道估计，前提是其中包含的各个REG之间具有时域和/或频域上的信道相关性，从而可以利用上述时域和/或频域上的信道相关性进行联合信道估计，例如利用最小二乘(Least Squared)或者最小均方误差(Minimum Mean Squared Error,MMSE)准则得到。如果REG集合或者REG束中各个REG上使用不同的预编码，而该预编码无法由UE事先得知，则REG集合或者REG束包含的各个REG之间时域和/或频域上的信道相关性无法由UE获知。因此，UE可以基于REG束中的各个REG使用相同的预编码矩阵(precoder)进行联合信道估计，REG束中的REG在时域和/ 或频域上连续，从而可以利用绑定在REG集合或者REG束中可供使用的多个DMRS做联合信道估计，从而提高信道估计精度。
图4示出了本申请提供的一种集中式和频率优先的CCE-REG映射方法，图4中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小(bundling size)为3个REG，时域绑定大小为1个REG。
图5示出了本申请提供的另一种集中式和频率优先的CCE-REG映射方法，图5中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为6个REG，时域绑定大小为1个REG。
图6示出了本申请提供的一种分布式和频率优先的CCE-REG映射方法，图6中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为2个REG，时域绑定大小为1个REG。
图7示出了本申请提供的另一种分布式和频率优先的CCE-REG映射方法，图7中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为3个REG，时域绑定大小为1个REG。
图8示出了本申请提供的一种集中式和时间优先的CCE-REG映射方法，图8中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为2个REG，时域绑定大小为3个REG。
图9示出了本申请提供的另一种集中式和时间优先的CCE-REG映射方法，图9中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为3个REG，时域绑定大小为2个REG。
图10示出了本申请提供的一种分布式和时间优先的CCE-REG映射方法，图10中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为1个REG，时域绑定大小为2个REG。
图11示出了本申请提供的另一种分布式和时间优先的CCE-REG映射方法，图11中，控制信道由2个CCE组成，分别为CCE0和CCE1，每个CCE由6个REG组成，该6个REG的频域绑定大小为1个REG，时域绑定大小为3个REG。
需要说明的是，图4至图11所示的REG集合或者REG束之间在频域上可以是连续的也可以是不连续的。
由图4至图11可以看出，绑定大小限制了控制信道在频域或时域上能够映射的资源颗粒度，当频域绑定大小为1个REG时，时域绑定大小可以为2或3个REG；当频域绑定大小为2个REG时，时域绑定大小可以为1或3个REG；当频域绑定大小为3个REG时，时域绑定大小可以为1或2个REG；当频域绑定大小为6个REG时，时域绑定大小可以为1个REG。
由图4至图11可知，当CCE对应6个REG时，一种具体的实施方式中REG集合或者REG束图案可以如图12中的图案0或者1或者2或者3；或者，一种具体的实施方式中REG集合或者REG束图案可以如图13中的图案0或者1；或者，一种具体的实施方式中REG集合或者REG束图案可以如图14中的图案0或者1；其中每个REG集合或者REG束图案中给出的REG在时间或/和频率上连续；
下面将结合附图详细介绍本申请提供的发送和接收控制信息的方法。
图15示出了本申请提供一种通信方法，其执行主体可以是基站。该方法100包括：
S110，确定用户设备UE控制信道所使用的CCE的个数和位置，其中，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域或者频域上连续或者邻近的多个资源块RB。
具体地，所述控制信道可以承载调度分配或者其它控制信息。
在本申请中，控制信道例如可以是PDCCH，也可以是用于传输控制信息的其它控制信道，本申请对控制信道的具体名称不作限定。
用户设备UE控制信道所使用的CCE的个数，可以由基站根据UE的信道条件确定；例如，用户设备UE控制信道可以使用1或者2或者4或者8或者16个CCE。不同的CCE个数对应于不同的控制信道的编码码率。基站可以根据UE反馈的信道质量指示(Channel Quality Indicator,CQI)获知UE的信道条件特别是信噪比SNR。基于SNR、性能需求，例如误块率BLER或者误码率BER，根据控制信道的信道编码的性能，例如SNR与误码率的曲线，得到满足性能需求所要使用的CCE个数。
用户设备UE控制信道所使用的CCE位置可以是以某一个CCE索引为起始位置的多个CCE。例如，该起始位置可以根据UE标识ID或者时隙索引或者符号索引或者聚合等级，根据预定义的规则或者函数导出。例如，该起始位置可以是LTE PDCCH或者EPDCCH起始位置索引函数导出。此处不进一步详述。
需要指出的是，用于本发明确定CCE个数和位置的方案，可以根据传输控制信息的实际需求灵活选择，本发明不作限定。此外，具体地，CCE的个数和位置可以如图4至图11所示。需要进一步指出的是，图4至图11所示的REG索引或者编号根据CCE索引进行编号。本发明并不受此编号的限制。例如REG索引可以按照先频域后时域的顺序，按照频域位置升序编号；也可以按照先时域后频域的顺序编号。具体地CCE索引映射到相关的REG索引即可。
S120，通过所述CCE向所述用户设备UE发送控制信道。
S130、用户设备确定UE的控制信道所使用的控制信道单元CCE的个数和位置，其中，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域或者频域上连续或者邻近的多个资源块RB。。
用户设备根据不同的聚合级别以及控制信道的候选candidate的个数确定CCE的个数和位置，其中每个聚合级别中含有不同的CCE个数。可以参考现有LTE系统中用户设备确定CCE的起始位置和个数的过程，此处不再赘述。
S140、用户设备通过所述CCE接收所述网络设备发送的控制信道。
在本申请中，每个所述CCE对应多个资源单元组REG，例如，所述CCE可以对应6或者4个REG；所述多个REG组成至少一个REG集合或者REG束，所述至少一个REG集合或者REG束中任意一个REG集合或者REG束包括在时域或者频域上连续或者邻近的多个资源块RB；如图4、5、6和7所示，所述CCE分别包含2、1、3和2个REG集 合或者REG束，其中每个REG集合或者REG束分别包含频域上连续或者邻近的3、6、3和2个REG。
如图8、9、10和11所示，所述CCE分别包含1、1、3和2个REG集合或者REG束，其中每个REG集合或者REG束分别包含时域或者时域和频域上连续或者邻近的6、6、3和2个REG。
此外，需要指出的是，每个REG集合或者REG束内包含的时域或者频域上连续或者邻近的多个REG，会组成时间或者频域上组成的不同的图案。例如图12、13和14所示，其中的REG集合或者REG束分别包含频域或者时域或者频域和时域上连续或者邻近的REG。
具体地，所述任一个REG集合或者REG束中REG可以对应于一个物理资源块RB。
需要指出的是，此处所述频域上邻近是指在控制资源集合配置的多个RB可能在频域上不连续，但是按照频域升序或者降序排列后，其索引可以连续。此处所述时域上邻近是指在控制资源集合配置的多个RB可能在时域上不连续，但是按照时域升序或者降序排列后，其索引可以连续。
所述REG集合或者REG束中的REG在时域和频域中至少一个维度上连续或者邻近，从而可以利用绑定REG中的多个DMRS做联合信道估计，从而提高信道估计精度。
具体地，由于无线信道在时间或者频率上具有相关性，信道估计算法通常基于DMRS对应RE所在的位置与DCI对应RE所在位置在时间和/或频率上的相关性得到信道估计。例如，在实际中信道估计过程通常包括两个基本步骤：首先，基于预定义或者事先可知的DMRS序列，利用最小二乘法，得到DMRS对应RE所在位置的信道的估计值；其次，基于DMRS对应RE所在的位置与DCI对应RE所在位置在时间和/或频率上的相关性，利用最小均方误差估计算法，从DMRS对应RE所在位置的信道的估计值导出DCI对应RE所在位置的信道估计值；无线信道在不同RE位置之间的时间和/或频率上的相关性通常基于信道统计得到，例如频域相关性可以基于多径时延的特性如时延扩展、方差等得到；时域相关性可以基于多径的方向分布以及多普勒频移特性得到。需要指出的是，基于时间或者频率相关性的信道估计算法是现有技术，本发明对具体实现不作限定。但是，需要说明的是，在此类基于相关性的信道估计算法中，DCI对应RE所在位置的信道估计值通常是DMRS对应RE所在位置的信道的估计值的加权组合，可供使用的DMRS越多，利用时域或者频域相关性，可以更为精确地确定DCI对应RE所在位置的信道估计值。
因此，本发明中每个CCE对应多个资源单元组REG，多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域或者频域上连续或者邻近的多个资源块RB。可以充分利用REG集合中多个连续或邻近的REG中DMRS，利用频域相邻的多个资源块和/或时域上多个符号上的DMRS进行联合信道估计，从而有力提高信道估计的性能。
通过所述CCE向所述用户设备UE发送控制信道，具体可以包括
对控制信息如调度分配、数据传输格式等进行信道编码；例如所述信道编码可以是卷积码、Turbo码、Polar码、LDPC码等；其中所述信道编码可以根据实际情况进行速率匹配；
对信道编码后的比特序列进行调制例如QPSK调制，得到复符号序列；
将所述复符号序列映射到控制信道对应的一个或者多个CCE；
将物理信道对应的一个或者多个CCE对应的复符号序列映射到对应REG中各个RE上发送；将CCE对应的复符号序列映射到具体的RE发送，是现有技术，此处不进一详述。
相应的，所述用户设备通过所述CCE接收所述网络设备发送的控制信道，具体包括：
在CCE对应的REG中各个RE上接收复信号序列；
基于DMRS得到信道估计；
利用信道估计对复信号序列进行解调；
对解调之后的软比特进行信道译码并进行CRC校验；
基于CRC校验结果确定DCI。
关于用户设备如何根据接收到的所述复信号序列得到控制信道承载的控制信息是现有技术，此处不再赘述。
下面具体说明如何确定CCE对应的REG的位置。一种具体的实施方式中，方法100还包括：
步骤A，所述网络设备根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合。
其中，所述控制资源集合包含用于发送控制信道的资源块集合。
步骤B：所述用户设备根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合。
所述控制资源集合包含用于接收控制信道的资源块集合。
具体地，所述控制资源集合可以是预定义的，例如，在频段的预定义位置指定连续或者离散的多个RB以及时间上多个符号作为控制资源集合。所述预定义的控制资源集合可以是频段(Band)特定的；
具体地，所述控制资源集合可以通过信令通知给UE，例如通过RRC信令通知UE控制资源集合中包含的RB的个数、位置以时间长度；具体的RB位置可以通过广义组合数对RB索引编码得到；时间长度可以是1、2或者3个OFDM符号。
具体地，所述控制资源集合可以是预定义的，例如，在频段的预定义位置指定连续或者离散的多个RB以及时间上多个符号作为控制资源集合。所述预定义的控制资源集合可以是频段(Band)特定的；
具体地，所述控制资源集合也可以通过上述二者的组合方式得到：预定义频段(Band)特定的多个控制资源集合；通过RRC信令指示其中的一个或者多个控制资源集合。
所述控制资源集合中每个RB可以对应一个REG。所述控制资源集合对应的REG可以按照先频域后时域排序，按照频域升序排列；例如，对于时域上2个符号、频域上24个RB总共48个RB，其REG索引编号如图16所示；所述控制资源集合对应的REG可以按照先时域后频域排序，按照频域升序排列；例如，对于时域上2个符号、频域上24个RB总共48个RB，其REG索引编号如图17所示；以下可以按照先频域后时域排序，按照频域升序排列为例，但是本发明并不限定于此。
所述REG绑定大小(Bundling size)可以包括REG频域绑定大小和/或者REG时域绑定大小，例如REG频域绑定大小可以为2或者3或者6，分别如图6、4和5所示。REG时域绑定大小可以为2或者3，如图10和11所示。REG时域和频域绑定大小可以为6， 如图8和9所示。
所述REG束或者REG绑定图案可以如图12、13和14所示。图12给出了频域绑定1、2、3、6个REG的图案；图13给出了时域绑定2个符号以及频域绑定1个或者3个REG的图案；图14给出了时域绑定3个符号以及频域绑定1个或者2个REG的图案；
所述REG绑定大小是预定义的；例如可以是基于控制资源集合预定义，也就是控制资源集合特定的REG绑定大小；也可以是基于搜索空间预定义的，例如公共搜索空间和UE特定的搜索空间特定的REG绑定大小；
所述REG绑定图案可以是预定义的，如图12、13、14所示图案；
从所述REG绑定大小或者REG绑定图案可以得到频域或者时域上连续或者邻近的REG的个数。
所述REG绑定大小或者REG绑定图案可以基于控制资源集合或者搜索空间预定义，因此为基站和用户设备所共知；
所述REG绑定大小或者REG绑定图案也可以由基站通过信令通知给UE，例如通过高层信令如RRC信令通知给UE。具体地，例如可以基于控制资源集合或者搜索空间配置信息通知UE；
一种具体的实施方式中，所述至少一个REG集合中任意一个REG集合满足下列条件中的至少一个，
频域上连续或者邻近的m个PRB，m为正整数，或者时域上连续或者邻近的n个符号，n为正整数。
例如，m可以取值为1、2、3、6、12等或者2、4、8、16；n可以取值为1、2、3等；
需要指出的是，此处所述频域上邻近是指在控制资源集合配置的多个RB可能在频域上不连续，但是按照频域升序或者降序排列后，其索引可以连续。此处所述时域上邻近是指在控制资源集合配置的多个RB可能在时域上不连续，但是按照时域升序或者降序排列后，其索引可以连续。
所述，根据REG绑定大小或预设的REG绑定图案从控制资源集合中确定所述至少一个REG集合，具体可以包括：
根据REG绑定大小或预设的REG绑定图案，确定频域或者/和时域上连续或者邻近的REG个数；
根据控制资源集合得到所有REG索引，如前所述REG索引根据先频域后时域或者先时域后频域编号；
根据频域或者/和时域上连续或者邻近的REG个数，得到每个REG集合索引对应的REG索引的集合；
例如，对图16速所示的控制资源集合中的REG，根据频域绑定大小为2或者图18中所示的REG绑定图案1，可以得到图18中所示24个REG集合或者REG束；例如，REG集合或者REG束0由REG0,1构成；REG集合或者REG束1由REG2,3构成…,依次可以类推；
再如，对图16速所示的控制资源集合中的REG，根据频域绑定大小为3并且时域绑定大小为2，或者图19中所示的REG绑定图案1，可以得到图19中所示8个REG集合或者REG束；例如，REG集合或者REG束0由REG0,1，2，24,25，26构成；REG集合 或者REG束1由REG3,4，5，27，28，29构成，…,依次可以类推；
一种具体的实施方式中，根据与每个所述CCE的索引对应的REG的索引确定与每个所述CCE对应的所述多个REG的时频位置。
一种具体的实施方式中，CCE的索引可以按序(in sequence)对应多个连续的REG索引。例如CCE索引依次对应连续的6个REG的索引。例如，以图18中的REG集合为例，CCE索引x对应的REG索引可以是6x，6x+1，6x+2，…6x+5.x＝0,…7.
一种具体的实施方式中，每个所述CCE的索引对应至少一个交织后的REG索引。所述交织后的REG索引根据所述REG绑定大小或REG绑定图案或者REG集合得到。
具体地，所述交织后的REG索引，根据REG绑定大小或REG绑定图案，对控制资源集合对应的REG索引进行交织得到。等价地，所述交织后的REG索引，根据REG集合或者REG束，对控制资源集合对应的REG索引进行交织得到。
例如，以图18中的控制资源集合以及REG绑定大小或REG绑定图案为例，可以根据将REG绑定大小或REG绑定图案绑定形成的REG集合或者REG束为交织的颗粒度,从而可以形成24个REG集合或者REG束，每个CCE对应3个REG集合或者REG束，即6个REG。
以REG集合或者REG束为交织的颗粒度，也就是将REG集合或者REG束对应的REG的索引组成一个N元组，其中N为REG集合或者REG束对应的REG的个数，对所有的N元组进行交织。
等价地，以REG集合或者REG束为交织的颗粒度进行交织，可以包括，
对控制资源集合对应的REG集合或者REG束进行交织，得到交织后的REG集合或者REG束索引；
根据所述交织后的REG集合或者REG束的索引对应确定交织后的REG索引。
一种具体的实施方式中，可以使用行进列出交织器，其中可以使用基于比特反转的列间重排。该交织器原理类似LTE卷积码或者Turbo码使用的交织器。具体地，包括
得到行进列出交织器使用的交织矩阵列数N C；
该列数可以是预定义的，例如为32或者16列，或者，由基站通过信令RRC通知给UE；该列数可以是控制资源集合或者搜索空间特定的。
根据REG集合或者REG束的个数，得到交织器使用的交织矩阵的行数N R，它是一个不小于Q的最小整数，此处Q是REG集合或者REG束的个数除以交织矩阵列数的得到的商；上述矩阵行号按照从高到低依次编号；
将上述REG集合或者REG束对应的N元组按照行依次写入矩阵，开始于行0列0；如果N R>Q,也就是不能整除的情况下，在最后一行多余的位置填充NULL；
按照指定的列间交织图案对上述矩阵的列进行重排。
从上述矩阵中按按列依次读出，得到交织之后的N元组，其中包含REG的索引。
其中列间交织图案可以基于比特反转(bit reverse)，例如32列对应的列交织图案如下，其中<P(0),P(1),...,P(N C-1)>为交织之后列的位置索引。
Figure PCTCN2018085713-appb-000001
或者
Figure PCTCN2018085713-appb-000002
例如，以图18中的控制资源集合以及REG绑定大小或REG绑定图案为例，得到交织之后的REG集合或REG束的索引，如图20所示。如CCE0对应的REG集合或者REG束索引依次为0，16，8，分别对应REG索引为0,1,32,33,16,17.
上述实施例中，一个CCE或者控制信道对应的REG或者REG集合或者REG束分布于不同的时间或者频率上，从而可以充分利用无线信道的时间或者频率选择性，因此，可以获得时间或者频率分集增益；
一种具体的实施方式中，根据REG绑定大小或REG绑定图案，可以使用对控制资源集合里面每个符号上的REG进行交织。例如，按照上述交织器，对图18所示两个符号上的REG分别交织得到REG集合或REG束的索引以及对应的REG索引如图21所示。所述实施例，可以实现频率优先的CCE到REG映射；
上述实施例中，一个CCE或者控制信道对应的REG或者REG集合或者REG束分布于相同的符号但是不同的频率上，一方面，可以获取频率分集增益；另一方面，控制信道可以位于单个符号上，从而可以实现快速混合自动重传(HARQ)确认(ACK/NACK)反馈；同时，特别适用URLLC业务场景；
一种具体的实施方式中，根据REG绑定大小或REG绑定图案，可以实现时间优先的CCE到REG映射；如图22所示，其中的REG绑定图案，对应于REG时域绑定2个REG。根据REG绑定大小或REG绑定图案，对控制资源集合里面的所有REG进行交织。所述实施例，可以实现时间优先的CCE到REG映射；
上述实施例中，一个CCE或者控制信道对应的REG或者REG集合或者REG束可以实现时间优先的CCE到REG映射，一方面，可以获取频率分集增益；另一方面，控制信道可以位于不同符号上，可以利用各个符号上功率余量，对控制信道特别是其中的DMRS进行功率提升(power boosting)，从而提升信道估计性能以及增强控制信道的覆盖；
一种具体的实施方式中，根据时域和频域绑定REG绑定大小或REG绑定图案；如图23所示，其中的REG绑定图案，对应于REG时域绑定2个REG和频域绑定3个REG。 根据REG绑定大小或REG绑定图案，对控制资源集合里面的所有REG进行交织，实际上可以实现CCE颗粒度的交织。
上述图20到图23所示的各个实施例，根据REG绑定大小或REG绑定图案,以REG集合或者REG束为交织的颗粒度，对资源控制集合对应的REG进行交织，一方面，可以利用REG集合或者REG束内DMRS进行联合信道估计,从而提高信道估计的精度，同时，可以有效避免一个REG集合或者REG束内的不同的REG分布于不同的CCE，从而有效降低接收复杂度。此外，上述REG束为交织的颗粒度可以基于预定义或者配置得到，从而，可以使得控制信道的资源颗粒度与数据信道的资源颗粒度相匹配。
在每个发送控制信道的时机，实际发送控制信道的所使用的CCE多数情况下可能只占用控制信道资源集合中的部分时频资源，也可能占用全部时频资源。在5G移动通信系统中，用于解调控制信道的参考信号和DCI仅位于控制资源集合所在的控制区，而且当不发送控制信息时，基站不会在发送控制信道的时频资源区域发送参考信号和DCI。因此，在控制信道资源集合中，若CCE未占用全部控制信道资源集合，则控制信道资源集合中剩余控制信道资源可用于发送PDSCH。
在每个接收控制信道的时机，实际接收控制信道的所使用的CCE多数情况下可能只占用控制信道资源集合中的部分时频资源，也可能占用全部时频资源。在5G移动通信系统中，用于解调控制信道的参考信号和DCI仅位于控制资源集合所在的控制区，而且当基站不发送控制信息时，基站不会在发送控制信道的时频资源区域发送参考信号和DCI。因此，在控制信道资源集合中，若CCE未占用全部控制信道资源集合，则控制信道资源集合中剩余控制信道资源可用于接收PDSCH。
一种具体的实施方式中，所述交织后的REG索引根据所述REG绑定大小或REG绑定图案或者REG集合得到，还可以包括：根据所述REG绑定大小或REG绑定图案或者REG集合,对控制资源集合对应的REG索引进行分组,其中每个分组内包含的REG索引对应多个REG集合或者REG束；
一种具体的实施方式中，一个所述分组内的REG的集合与其它分组内的REG的集合可以相互重叠，也可以互不重叠。
根据所述REG绑定大小或REG绑定图案或者REG集合,对每个分组内的REG索引进行交织。
具体地，可以是对一个分组内的REG按照REG集合或者REG束的颗粒度进行交织。从交织的REG集合或者REG束索引得到交织的REG索引。
一种具体的实施方式中，所述方法100包括
步骤C，根据所述REG绑定大小或REG绑定图案,对控制资源集合对应的REG集合或者REG束进行分组交织，得到交织后的REG集合或者REG束索引。
步骤D，根据所述交织后的REG集合或者REG束的索引确定交织后的REG索引。
一种具体的实施方式中，对所述每个分组内的REG按照REG集合或者REG束为颗粒度交织可以采用前述行进列出交织器，其中可以对列进行重排列。此外不进一步详述。
上述实施例所述方法，根据REG绑定大小或REG绑定图案,对资源控制集合对应的REG进行分组，在每个分组内以REG集合或者REG束为颗粒度进行交织。一方面，可 以利用REG集合或者REG束内DMRS进行联合信道估计,从而提高信道估计的精度，同时，可以有效减少不同分组对应的CCE之间的资源冲突，从而有效避免不同控制信道之间的资源碰撞。另一方面，上述REG束为交织的颗粒度可以基于预定义或者配置得到，从而，可以使得控制信道的资源颗粒度与数据信道的资源颗粒度相匹配。此外，通过分组，可以协调控制信道与数据信道分别复用不同的控制资源区，从而有效提高资源利用效率。
一种具体的实施方式中，根据所述REG绑定大小或REG绑定图案,对控制资源集合对应的REG集合或者REG束进行分组交织，包括但不限于以下两种方式：
方式一，对控制资源集合各个符号内的REG分别交织。
上述实施例中，控制资源集合中每个符号上的REG构成一个分组。对每个符号上的REG，按照REG绑定大小或REG绑定图案,以REG集合或者REG束为交织的颗粒度。
例如，按照上述交织器，对图18所示两个符号上的REG分别交织得到REG集合或REG束的索引以及对应的REG索引如图21所示。所述实施例，可以实现频率优先的CCE到REG映射；
上述实施例中，一个CCE或者控制信道对应的REG或者REG集合或者REG束分布于相同的符号但是不同的频率上，一方面，可以获取频率分集增益；另一方面，控制信道可以位于单个符号上，从而可以实现快速混合自动重传(HARQ)确认(ACK/NACK)反馈；同时，特别适用URLLC业务场景；此外，可以有效减少不同控制信道之间的资源碰撞。
方式二对控制资源集合对应的所有REG，按照REG集合进行等间隔分组，对每个分组以REG集合为颗粒度进行交织。
以REG频域绑定大小为3或REG绑定图案中频域绑定大小为3时为例，如图24所示。按照REG集合或者REG束索引mod 2＝0形成分组0；按照REG集合或者REG束索引mod 2＝1形成分组1；其中mod表示取模。
以REG频域绑定大小为2或REG绑定图案中频域绑定大小为2时为例，如图25所示。按照REG集合或者REG束索引mod 3＝0形成分组0；按照REG集合或者REG束索引mod 3＝1形成分组1；按照REG集合或者REG束索引mod 3＝2形成分组2；其中mod表示取模。
以REG时域绑定大小为2或者3或REG绑定图案中时域绑定大小为2或者3时为例，如图26所示。按照REG集合或者REG束索引mod 3＝0形成分组0；按照REG集合或者REG束索引mod 3＝1形成分组1；按照REG集合或者REG束索引mod 3＝2形成分组2；其中mod表示取模。
以REG频域绑定大小为4或REG绑定图案中频域绑定大小为4时为例，如图27所示。按照REG集合或者REG束索引mod 2＝0形成分组0；按照REG集合或者REG束索引mod 2＝1形成分组1；其中mod表示取模。
以REG频域绑定大小为2或REG绑定图案中频域绑定大小为2时为例，如图28所示。按照REG集合或者REG束索引mod 4＝i形成分组i，i＝0，1，2，3；其中mod表示取模。
以REG时域绑定大小为2或者3或REG绑定图案中时域绑定大小为2或者3时为例，如图29所示。按照REG集合或者REG束索引mod 4＝i形成分组i，i＝0，1，2，3；其中mod表示取模。
一个具体的实现中，每个分组可以独立交织。
另一个具体的实现中，可以仅对其中一个分组进行交织，其它分组按照完成交织的分组得到的索引进行循环移位并引入一个等于分组长度的偏移量。例如，分组1交织后的REG索引为0,8,4,2,10,6,1,9,5,3,11,7；分组2的索引可以是3+12,11+12,7+12，0+12,8+12,4+12,2+12,10+12,6+12,1+12,9+12,5+12。
为了提高频谱资源利用率，5G NR中允许业务信道复用控制信道的资源。基站通过高层信令如无线资源控制(Radio Resource Control，RRC)信令配置用户设备(User Equipment，UE)可以使用的控制资源集合(Control Resource Set，CORESET)。每个控制信道发送的时机，依赖于信道条件和控制信道格式或者有效负载(payload),控制信道实际使用的物理资源将是所配置的控制资源集合CORESET中的一部分。此时，控制资源集合CORESET中的其它资源可用于业务信道例如下行共享信道(Physical Downlink Shared Channel，PDSCH)。此时，需要解决控制信道和数据信道在控制资源区域的资源复用问题。
上述实施例所述方法，根据REG绑定大小或REG绑定图案,对资源控制集合对应的REG进行分组，在每个分组内以REG集合或者REG束为颗粒度进行交织。一方面，可以利用REG集合或者REG束内DMRS进行联合信道估计,从而提高信道估计的精度，同时，可以有效减少不同分组对应的CCE之间的资源冲突，从而有效避免不同控制信道之间的资源碰撞。另一方面，上述REG束为交织的颗粒度可以基于预定义或者配置得到，从而，可以使得控制信道的资源颗粒度与数据信道的资源颗粒度相匹配。此外，通过分组，可以协调控制信道与数据信道分别复用不同的控制资源区，从而有效提高资源利用效率。
一个具体的实施方式中还可以根据所述控制资源集合的配置信息，对所述控制资源集合对应的REG进行分组交织得到交织之后的REG索引。
其中，所述控制资源集合的配置信息可以是REG绑定大小或REG绑定图案或者控制资源集合中资源块的个数或者符号数。
一种具体的实施方式中，所述基站使用交织器进行所述分组交织，方法100还包括：
步骤E，网络设备根据所述控制资源集合的资源大小确定所述交织器使用的交织矩阵的列数。
步骤F，用户设备根据所述控制资源集合的资源大小确定所述交织器使用的交织矩阵的列数。
或者，
步骤F，网络设备通过指示信息通知UE所述交织器使用的交织矩阵的列数。所述指示信息可以是高层信令，例如RRC信令或者MAC信元。
步骤G，用户设备接收网络设备发送的指示信息，所述指示信息用于通知UE所述交织器使用的交织矩阵的列数。所述指示信息可以是高层信令，例如RRC信令或者MAC信元。
具体地，在步骤F和步骤G中，网络设备根据当前资源使用情况以及UE的信道条件，确定所述交织器使用的交织矩阵的列数。当UE的信道条件较差，例如位于小区边缘时，控制信道使用的物理资源较多，对应的CCE个数较多，此时，交织器的列数适当增加。网络设备确定交织矩阵的列数后，通过指示信息通知UE所述交织器使用的交织矩阵的列数。
上述实施例所述方法，根据REG绑定大小或REG绑定图案,对资源控制集合对应的REG进行分组，在每个分组内以REG集合或者REG束为颗粒度进行交织。一方面，可以利用REG集合或者REG束内DMRS进行联合信道估计,从而提高信道估计的精度，同时，可以有效减少不同分组对应的CCE之间的资源冲突，从而有效避免不同控制信道之间的资源碰撞。另一方面，上述REG束为交织的颗粒度可以基于预定义或者配置得到，从而，可以使得控制信道的资源颗粒度与数据信道的资源颗粒度相匹配。此外，通过分组，可以协调控制信道与数据信道分别复用不同的控制资源区，从而有效提高资源利用效率。需要说明的是，上文中所述的步骤C和步骤D即可以由网络设备执行也可以由用户设备执行。
下面结合附图对与上述方法实施例对应的装置进行描述。
图30是本申请实施例提供的一种网络设备400的示意图，该网络设备400可以应用于图1所示的场景中，用于执行图15所对应的方法100。如图30所示，该网络设备400包括处理单元401和收发单元402。该收发单元402具体可以用于执行上述方法100中所述网络设备执行的各种信息收发；该处理单元401具体用于执行上述方法100中所述网络设备除了信息收发之外的其它处理。
例如，该处理单元401用于确定用户设备的控制信道所使用的控制信道单元CCE的个数和位置，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和频域中至少一个维度上连续多个物理资源块PRB，其中，所述任一个REG集合中REG与PRB一一对应，所述多个PRB属于控制信道资源集合。该收发单元402用于通过所述处理器确定的所述CCE向所述用户设备发送控制信息。
具体内容参考方法100中相关部分的描述，此处不再赘述。
应理解，以上各个单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。本申请实施例中，收发单元402可以由收发机实现，处理单元401可以由处理器实现。如图31所示，网络设备500可以包括处理器501、收发机502和存储器503。其中，存储器503可以用于存储网络设备500出厂时预装的程序/代码，也可以存储用于处理器501执行时的代码等。
应理解，根据本申请实施例的网络设备500可对应于根据本申请实施例的方法100中的网络设备,其中收发机502用于执行方法100中所述网络设备执行的各种信息收发，处理器501用于执行方法100中所述网络设备除了信息收发以外的其它处理。在此不再赘述。
图32示出了一种网络设备20的结构示意图，该网络设备20例如可以是基站。该网络设备20可应用于如图1所示的系统，用于执行图15所对应的方法。网络设备20包括一个或多个远端射频单元(英文：remote radio unit,简称：RRU)201和一个或多个基带单元(英文：baseband unit，简称：BBU)202。所述RRU201可以称为收发单元、收发机、收发电路、或者收发器等等，其可以包括至少一个天线2011和射频单元2012。。所述RRU201分主要用于射频信号的收发以及射频信号与基带信号的转换，例如用于执行上述方法200或300中所述网络设备执行的各种信息收发。所述BBU202部分主要用于进行基带处理，对网络设备进行控制等。所述RRU201与BBU202可以是物理上设置在一起，也 可以物理上分离设置的，例如分布式基站。
所述BBU202为网络设备的控制中心，也可以称为处理单元，主要用于完成基带处理功能，如信道编码，复用，调制，扩频等等。例如所述BBU(处理单元)可以用于控制网络设备执行方法100中处理信息收发以外的其它处理。
在一个示例中，所述BBU202可以由一个或多个单板构成，多个单板可以共同支持单一接入制式的无线接入网(如LTE网)，也可以分别支持不同接入制式的无线接入网。所述BBU202还包括存储器2021和处理器2022。所述存储器2021用以存储必要的指令和数据。例如存储器2021存储上述实施例中的所述码本C1，C2，和/或码本C。所述处理器2022用于控制网络设备进行必要的动作，例如用于控制网络设备执行方法200或方法300中处理信息收发以外的其它处理。所述存储器2021和处理器2022可以服务于一个或多个单板。也就是说，可以每个单板上单独设置存储器和处理器。也可以是多个单板公用相同的存储器和处理器。此外每个单板上还设置有必要的电路。
图33是本申请实施例提供的一种终端设备600的示意图。该终端设备600可以应用于图1所示的场景中，用于执行图15所示的方法。如图33所示，该终端设备600包括处理单元601和收发单元602。该收发单元602具体可以用于执行上述方法100中所述终端设备执行的各种信息收发；该处理单元601具体用于执行上述方法100中所述终端设备除了信息收发之外的其它处理。
例如，所述处理单元601，用于确定所述通信装置的控制信道所使用的控制信道单元CCE的个数和位置，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和频域中至少一个维度上连续多个物理资源块PRB，其中，所述任一个REG集合中REG与PRB一一对应，所述多个PRB属于控制信道资源集合。所述收发单元602用于通过所述处理器确定的所述CCE从所述网络设备接收控制信息。
具体内容参见上述方法100中的具体说明，此处不再赘述。
应理解，以上各个单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。本申请实施例中，收发单元602可以由收发机实现，处理单元601可以由处理器实现。如图34所示，终端设备700可以包括处理器701、收发机702和存储器703。其中，存储器703可以用于存储终端设备700出厂时预装的程序/代码，也可以存储用于处理器701执行时的代码等。
应理解，根据本申请实施例的终端设备700可对应于根据本申请实施例的方法100中的终端设备,其中收发机702用于执行方法100中所述终端设备执行的各种信息收发，处理器701用于执行方法100中所述终端设备除了信息收发以外的其它处理。在此不再赘述。
图35提供了一种终端设备的结构示意图。该终端设备可以用于图1所示场景中，执行图15所对应的方法。为了便于说明，图35仅示出了终端设备的主要部件。如图35所示，终端设备10包括处理器、存储器、控制电路、天线以及输入输出装置。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号，接收基站发送的信令指示和/或参考信号，用于执行上述方法100中所述终端设备执行的各种信息收发，具体可参照上面相关部分的描述。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行 控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备执行方法100中除了信息收发以外的动作。存储器主要用于存储软件程序和数据。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图35仅示出了一个存储器和处理器。在实际的用户设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。
作为一种一种具体的实施方式中实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图9中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
示例性的，在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备10的收发单元101，将具有处理功能的处理器视为UE10的处理单元102。如图35所示，终端设备10包括收发单元101和处理单元102。收发单元也可以称为收发器、收发机、收发装置等。一种具体的实施方式中，可以将收发单元101中用于实现接收功能的器件视为接收单元，将收发单元101中用于实现发送功能的器件视为发送单元，即收发单元101包括接收单元和发送单元示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
本申请实施例中，收发机可以是有线收发机，无线收发机或其组合。有线收发机例如可以为以太网接口。以太网接口可以是光接口，电接口或其组合。无线收发机例如可以为无线局域网收发机，蜂窝网络收发机或其组合。处理器可以是中央处理器(英文：central processing unit，缩写：CPU)，网络处理器(英文：network processor，缩写：NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(英文：application-specific integrated circuit，缩写：ASIC)，可编程逻辑器件(英文：programmable logic device，缩写：PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(英文：complex programmable logic device，缩写：CPLD)，现场可编程逻辑门阵列(英文：field-programmable gate array，缩写：FPGA)，通用阵列逻辑(英文：generic array logic,缩写：GAL)或其任意组合。存储器可以包括易失性存储器(英文：volatile memory)， 例如随机存取存储器(英文：random-access memory，缩写：RAM)；存储器也可以包括非易失性存储器(英文：non-volatile memory)，例如只读存储器(英文：read-only memory，缩写：ROM)，快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文：solid-state drive，缩写：SSD)；存储器还可以包括上述种类的存储器的组合。
图31以及图34中还可以包括总线接口，总线接口可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线接口还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机提供用于在传输介质上与各种其他设备通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
本领域技术任何还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器，数字信号处理器，专用集成电路(ASIC)，现场可编程门阵列(FPGA)或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器，一种具体的实施方式中，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地，存储媒介可以与处理器连接，以使得处理器可以从存储媒介中读取信息，并可以向存储媒介存写信息。一种具体的实施方式中，存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中，ASIC可以设置于UE中。一种具体的实施方式中，处理器和存储媒介也可以设置于UE中的不同的部件中。
应理解，在本申请的各种实施例中，各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算 机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
本说明书的各个部分均采用递进的方式进行描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点介绍的都是与其他实施例不同之处。尤其，对于装置和系统实施例而言，由于其基本相似于方法实施例，所以描述的比较简单，相关之处参见方法实施例部分的说明即可。
本申请说明书的上述描述可以使得本领域技术任何可以利用或实现本申请的内容，任何基于所公开内容的修改都应该被认为是本领域显而易见的，本申请所描述的基本原则可以应用到其它变形中而不偏离本申请的发明本质和范围。因此，本申请所公开的内容不仅仅局限于所描述的实施例和设计，还可以扩展到与本申请原则和所公开的新特征一致的最大范围。

Claims (35)

  1. 一种通信方法，其特征在于，包括：
    确定用户设备的控制信道所使用的控制信道单元CCE的个数和位置，其中，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；
    通过所述CCE向所述用户设备发送所述控制信道。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合，其中，所述控制资源集合包括用于发送所述控制信道的资源块RB集合，所述RB集合包括所述多个RB，每个RB对应一个REG，所述控制资源集合对应的REG按照先时域后频域排序，并且按照频域升序排列。
  3. 根据权利要求2所述的方法，其特征在于，
    当所述控制资源集合时域为1个符号时，所述REG绑定大小为时域1个符号以及频域绑定2或者6个REG；
    当所述控制资源集合时域为2个符号时，所述REG绑定图案的时域绑定2个符号以及所述REG绑定图案的频域绑定1个或者3个REG；
    当所述控制资源集合时域为3个符号时，所述REG绑定图案的时域绑定3个符号以及所述REG绑定图案的频域绑定1个或者2个REG。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，
    所述REG绑定大小或者REG绑定图案是基于控制资源集合预定义或者由基站通过高层信令通知。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，
    所述CCE中，CCE索引x对应的REG索引是6x，6x+1，6x+2，6x+3，6x+4和6x+5。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，每个所述CCE的索引对应多个交织后的REG索引,所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到。
  7. 根据权利要求6中所述的方法，其特征在于，所述多个交织后的REG索引是根据所述REG绑定大小或所述REG绑定图案或者所述REG集合,对所述控制资源集合对应的REG索引进行交织得到的，其中根据所述REG绑定大小或所述REG绑定图案形成的REG集合为交织的颗粒度。
  8. 根据权利要求7所述的方法，其特征在于，
    以REG集合为交织的颗粒度进行交织，具体包括：
    对控制资源集合对应的REG集合进行交织，得到交织后的REG集合索引；
    根据所述交织后的REG集合索引确定交织后的REG索引。
  9. 一种通信方法，其特征在于，包括：
    确定所述用户设备的控制信道所使用的控制信道单元CCE的个数和位置，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个 REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；
    通过所述CCE从网络设备接收所述控制信道。
  10. 根据权利要求9所述的方法，其特征在于，还包括：
    根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合，其中，所述控制资源集合包括用于接收所述控制信道的资源块RB集合，所述RB集合包括所述多个RB，每个RB对应一个REG，所述控制资源集合对应的REG按照先时域后频域排序，并且按照频域升序排列。
  11. 根据权利要求10所述的方法，其特征在于，
    当所述控制资源集合时域为1个符号时，所述REG绑定大小为时域1个符号以及频域绑定2或者6个REG；
    当所述控制资源集合时域为2个符号时，所述REG绑定图案的时域绑定2个符号以及所述REG绑定图案的频域绑定1个或者3个REG；
    当所述控制资源集合时域为3个符号时，所述REG绑定图案的时域绑定3个符号以及所述REG绑定图案的频域绑定1个或者2个REG。
  12. 根据权利要求9-11任一项所述的方法，其特征在于，
    所述REG绑定大小或者REG绑定图案是基于控制资源集合预定义或者由基站通过高层信令通知。
  13. 根据权利要求9-12中任一项所述的方法，其特征在于，
    所述CCE中，CCE索引x对应的REG索引是6x，6x+1，6x+2，6x+3，6x+4和6x+5。
  14. 根据权利要求9-13中任一项所述的方法，其特征在于，
    每个所述CCE的索引对应多个交织后的REG索引,所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到。
  15. 根据权利要求14所述的方法，其特征在于，所述多个交织后的REG索引是根据所述REG绑定大小或所述REG绑定图案或者所述REG集合,对所述控制资源集合对应的REG索引进行交织得到的，其中根据所述REG绑定大小或所述REG绑定图案形成的REG集合为交织的颗粒度。
  16. 根据权利要求15所述的方法，其特征在于，
    以REG集合为交织的颗粒度进行交织，具体包括：
    对控制资源集合对应的REG集合进行交织，得到交织后的REG集合索引；
    根据所述交织后的REG集合索引确定交织后的REG索引。
  17. 一种网络设备，其特征在于，包括处理器和收发器，
    所述处理器用于确定用户设备的控制信道所使用的控制信道单元CCE的个数和位置，其中，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；
    所述收发器用于通过所述CCE向所述用户设备发送所述控制信道。
  18. 根据权利要求17所述的网络设备，其特征在于，所述处理器还用于：
    根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合，其中，所述控制资源集合包括用于发送所述控制信道的资源块RB集合，所述RB集合包 括所述多个RB，每个RB对应一个REG，所述控制资源集合对应的REG按照先时域后频域排序，并且按照频域升序排列。
  19. 根据权利要求18所述的网络设备，其特征在于，
    当所述控制资源集合时域为1个符号时，所述REG绑定大小为时域1个符号以及频域绑定2或者6个REG；
    当所述控制资源集合时域为2个符号时，所述REG绑定图案的时域绑定2个符号以及所述REG绑定图案的频域绑定1个或者3个REG；
    当所述控制资源集合时域为3个符号时，所述REG绑定图案的时域绑定3个符号以及所述REG绑定图案的频域绑定1个或者2个REG。
  20. 根据权利要求17-19中任一项所述的网络设备，其特征在于，
    所述REG绑定大小或者REG绑定图案是基于控制资源集合预定义或者由基站通过高层信令通知。
  21. 根据权利要求17-20中任一项所述的网络设备，其特征在于，
    所述CCE中，CCE索引x对应的REG索引是6x，6x+1，6x+2，6x+3，6x+4和6x+5。
  22. 根据权利要求17-21中任一项所述的网络设备，其特征在于，每个所述CCE的索引对应多个交织后的REG索引,所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到。
  23. 根据权利要求22所述的网络设备，其特征在于，
    所述多个交织后的REG索引是根据所述REG绑定大小或所述REG绑定图案或者所述REG集合,对所述控制资源集合对应的REG索引进行交织得到的，其中根据所述REG绑定大小或所述REG绑定图案形成的REG集合为交织的颗粒度。
  24. 根据权利要求23所述的网络设备，其特征在于，所述处理器具体用于：
    对控制资源集合对应的REG集合进行交织，得到交织后的REG集合索引；
    根据所述交织后的REG集合索引确定交织后的REG索引。
  25. 一种用户设备，其特征在于，包括处理器和收发器，
    所述处理器用于确定所述用户设备的控制信道所使用的控制信道单元CCE的个数和位置，每个所述CCE对应多个资源单元组REG，所述多个REG组成至少一个REG集合，所述至少一个REG集合中任意一个REG集合包括在时域和/或频域上连续或者邻近的多个资源块RB；
    所述收发器用于通过所述CCE从网络设备接收所述控制信道。
  26. 根据权利要求25所述的用户设备，其特征在于，所述处理器还用于：
    根据REG绑定大小或REG绑定图案从控制资源集合中确定所述至少一个REG集合，其中，所述控制资源集合包括用于接收所述控制信道的资源块RB集合，所述RB集合包括所述多个RB，每个RB对应一个REG，所述控制资源集合对应的REG按照先时域后频域排序，并且按照频域升序排列。
  27. 根据权利要求26所述的用户设备，其特征在于，
    当所述控制资源集合时域为1个符号时，所述REG绑定大小为时域1个符号以及频域绑定2或者6个REG；
    当所述控制资源集合时域为2个符号时，所述REG绑定图案的时域绑定2个符号以 及所述REG绑定图案的频域绑定1个或者3个REG；
    当所述控制资源集合时域为3个符号时，所述REG绑定图案的时域绑定3个符号以及所述REG绑定图案的频域绑定1个或者2个REG。
  28. 根据权利要求25-27中任一项所述的用户设备，其特征在于，
    所述REG绑定大小或者REG绑定图案是基于控制资源集合预定义或者由基站通过高层信令通知。
  29. 根据权利要求25-28中任一项所述的用户设备，其特征在于，
    所述CCE中，CCE索引x对应的REG索引是6x，6x+1，6x+2，6x+3，6x+4和6x+5。
  30. 根据权利要求25-29中任一项所述的用户设备，其特征在于，
    每个所述CCE的索引对应多个交织后的REG索引,所述多个交织后的REG索引基于REG绑定大小或REG绑定图案或者REG集合得到。
  31. 根据权利要求30所述的用户设备，其特征在于，所述多个交织后的REG索引是根据所述REG绑定大小或所述REG绑定图案或者所述REG集合,对所述控制资源集合对应的REG索引进行交织得到的，其中根据所述REG绑定大小或所述REG绑定图案形成的REG集合为交织的颗粒度。
  32. 根据权利要求31所述的用户设备，其特征在于，所述处理器还用于：
    对控制资源集合对应的REG集合进行交织，得到交织后的REG集合索引；
    根据所述交织后的REG集合索引确定交织后的REG索引。
  33. 一种通信装置，其特征在于，包括用于执行所述权利要求1-16中任一项所述方法的各个步骤的单元。
  34. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有指令，当所述计算机可读存储介质在计算机上运行时，使得计算机执行所述权利要求1-16中任一项所述的方法的步骤。
  35. 一种包含指令的计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时，使得计算机执行所述权利要求1-16中任一项所述的方法的步骤。
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