WO2018082551A1 - 控制信道的资源配置方法、基站和终端设备 - Google Patents

控制信道的资源配置方法、基站和终端设备 Download PDF

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Publication number
WO2018082551A1
WO2018082551A1 PCT/CN2017/108851 CN2017108851W WO2018082551A1 WO 2018082551 A1 WO2018082551 A1 WO 2018082551A1 CN 2017108851 W CN2017108851 W CN 2017108851W WO 2018082551 A1 WO2018082551 A1 WO 2018082551A1
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WIPO (PCT)
Prior art keywords
time
frequency resource
configuration
resource unit
region
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PCT/CN2017/108851
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English (en)
French (fr)
Inventor
陈铮
张旭
成艳
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 EP21199897.6A priority Critical patent/EP3996447B1/en
Priority to EP17868242.3A priority patent/EP3537804B1/en
Priority to BR112019008834A priority patent/BR112019008834A2/pt
Priority to JP2019523792A priority patent/JP6818885B2/ja
Priority to EP23207386.6A priority patent/EP4336788A3/en
Priority to RU2019116865A priority patent/RU2748942C2/ru
Publication of WO2018082551A1 publication Critical patent/WO2018082551A1/zh
Priority to US16/236,589 priority patent/US10555296B2/en
Priority to US16/749,215 priority patent/US11109371B2/en
Priority to US17/458,025 priority patent/US11722286B2/en
Priority to US18/337,556 priority patent/US20240007261A1/en

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    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • 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
    • 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
    • H04W72/20—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present application relates to the field of communications, and in particular, to a resource configuration method for a control channel, a base station, and a terminal device.
  • the basic unit in the frequency domain is one subcarrier
  • the basic unit in the time domain is an Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • a Resource Element (RE) is the smallest physical resource and contains one subcarrier within one OFDM symbol.
  • the basic scheduling unit of the time domain is a slot or a mini-slot, and the slot or mini-slot is composed of a number of OFDM symbols.
  • the slot can be divided into a control area and a data area.
  • the downlink control channel (PDCCH) carries Downlink Control Information (DCI) and is transmitted in the control area.
  • DCI Downlink Control Information
  • a Resource-Element Group (REG) is a time-frequency resource unit that controls time-frequency resources of a downlink control channel in a control region.
  • a fixed structure REG is used to transmit a downlink control channel, which cannot be flexibly configured.
  • the embodiment of the present application provides a resource configuration method for a control channel, a base station, and a terminal device, which can flexibly configure a time-frequency resource unit of a control channel in a control region.
  • the first aspect provides a resource configuration method for a control channel, including:
  • the base station determines the configuration of the time-frequency resource unit from at least two configurations of the time-frequency resource unit of the control channel,
  • the base station sends the indication information to the terminal device, where the indication information is used to indicate a configuration of the time-frequency resource unit;
  • the at least two configurations of the time-frequency resource unit include a first configuration and a second configuration.
  • the time-frequency resource unit of the first configuration occupies one orthogonal frequency division multiplexing symbol in the time domain, and the reference signal is located on the orthogonal frequency division multiplexing symbol occupied by the time-frequency resource unit of the first configuration.
  • the time-frequency resource unit of the second configuration occupies at least two orthogonal frequency division multiplexing symbols in the time domain, and the reference signal is located in the at least two orthogonal frequency divisions occupied by the time-frequency resource unit of the second configuration. At least one orthogonal frequency division multiplexing symbol in the multiplex symbol.
  • the base station can flexibly configure the time-frequency resource unit of the control channel in the control area.
  • the blocking probability of time-frequency resource units of different structures can also be reduced. Thereby, it is advantageous to reduce the complexity of detecting the control channel by the terminal device.
  • control channel is transmitted in at least one time-frequency resource region in the control region
  • the determining, by the base station, the configuration of the time-frequency resource unit from the at least two configurations of the time-frequency resource unit of the control channel including:
  • the indication information is used to indicate a configuration of a time domain resource unit in each time-frequency resource region in the at least one time-frequency resource region.
  • control region where the time-frequency resource unit of the control channel is located occupies at least three orthogonal frequency division multiplexing symbols in the time domain, and the configuration of the time-frequency resource unit includes the foregoing A configuration and/or the second configuration.
  • the second configured time-frequency resource unit is located on at least two orthogonal frequency division multiplexing symbols adjacent to the orthogonal frequency division multiplexing symbols occupied by the control region.
  • the first configured time-frequency resource unit and the second configured time-frequency resource unit are located in different orthogonal frequency divisions of the control region. Use the symbol.
  • At least two orthogonal frequency division symbols in the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are different in number of reference signals;
  • the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration each have the same number of reference signals.
  • the reference signals carried by the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration are located in the same frequency domain position.
  • the reference signals carried by the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration are located in different frequency domain locations.
  • the configuration of the time-frequency resource unit has a corresponding relationship with the format of the downlink control information, and the configuration of the time-frequency resource unit is indicated by the format of the downlink control information;
  • the sending, by the base station, the indication information to the terminal device includes:
  • the indication information is carried in an indication channel, where the indication channel is transmitted in a time-frequency resource region in the control region.
  • the indication information indicating the channel bearer transmitted in the time-frequency resource region is used to indicate the configuration of the time-frequency resource unit in the time-frequency resource region.
  • the indication information is carried in the downlink control information
  • the control area includes a basic set area and an extended set area, where a control channel where the downlink control information is located is transmitted in the basic set area, and a configuration of the time-frequency resource unit is a time of a control channel transmitted by the extended set area The configuration of the frequency resource unit.
  • control area includes a basic set area
  • the configuration of the time-frequency resource unit of the control channel transmitted in the basic set region is pre-configured, or The configuration of the time-frequency resource unit of the control channel transmitted in the basic set region is indicated by the broadcast channel.
  • the indication information is carried in high layer signaling or system information.
  • control region where the time-frequency resource unit of the control channel is located occupies at least two orthogonal frequency division multiplexing symbols in the time domain.
  • the second aspect provides a resource configuration method for a control channel, including:
  • the terminal device receives the indication information sent by the base station, where the indication information is used to indicate the configuration of the control channel time-frequency resource unit, where the configuration of the time-frequency resource unit is determined by the base station from at least two configurations of the time-frequency resource unit. ;
  • the terminal device detects the control channel according to the configuration of the time-frequency resource unit,
  • the at least two configurations of the time-frequency resource unit include a first configuration and a second configuration.
  • the time-frequency resource unit of the first configuration occupies one orthogonal frequency division multiplexing symbol in the time domain, and the reference signal is located on the orthogonal frequency division multiplexing symbol occupied by the time-frequency resource unit of the first configuration.
  • the time-frequency resource unit of the second configuration occupies at least two orthogonal frequency division multiplexing symbols in the time domain, and the reference signal is located in the at least two orthogonal frequency divisions occupied by the time-frequency resource unit of the second configuration. At least one orthogonal frequency division multiplexing symbol in the multiplex symbol.
  • the base station can flexibly configure the time-frequency resource unit of the time-frequency resource that constitutes the control channel in the control region.
  • the blocking probability of the time-frequency resource unit of different structures can also be reduced, thereby facilitating reducing the complexity of detecting the control channel by the terminal device.
  • the terminal device detects the control channel according to the configuration of the time-frequency resource unit indicated by the base station, and can reduce the complexity of detecting the control channel by the terminal device.
  • control channel is transmitted in at least one time-frequency resource region in the control region
  • the indication information is used to indicate a configuration of a time domain resource unit in each time-frequency resource region in the at least one time-frequency resource region.
  • control area occupies at least three orthogonal frequency division multiplexing symbols in a time domain
  • configuration of the time-frequency resource unit includes the first configuration and/or the second Configuration.
  • the second configured time-frequency resource unit is located on at least two orthogonal frequency division multiplexing symbols adjacent to the orthogonal frequency division multiplexing symbols occupied by the control region.
  • the first configured time-frequency resource unit and the second configured time-frequency resource unit are located in different orthogonal frequency divisions of the control region. Use the symbol.
  • At least two orthogonal frequency division symbols in the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are different in number of reference signals;
  • the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration each have the same number of reference signals.
  • the reference signals carried by the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration are located in the same frequency domain position.
  • the reference signals carried by the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration are located in different frequency domain locations.
  • the configuration of the time-frequency resource unit has a corresponding format of the downlink control information. Relationship, the configuration of the time-frequency resource unit is indicated by a format of the downlink control information;
  • the terminal device receives the indication information sent by the base station, including:
  • the terminal device receives downlink control information in a format that is sent by the base station and corresponds to a configuration of the time-frequency resource unit.
  • the indication information is carried in an indication channel, where the indication channel is transmitted in a time-frequency resource region in a control region.
  • the indication information indicating the channel bearer transmitted in the time-frequency resource region is used to indicate the configuration of the time-frequency resource unit in the time-frequency resource region.
  • the indication information is carried in the downlink control information
  • the control area includes a basic set area and an extended set area, where a control channel where the downlink control information is located is transmitted in the basic set area, and a configuration of the time-frequency resource unit is a time of a control channel transmitted by the extended set area The configuration of the frequency resource unit.
  • control area includes a basic set area
  • the configuration of the time-frequency resource unit of the control channel transmitted in the basic set region is pre-configured, or the configuration of the time-frequency resource unit of the control channel transmitted in the basic set region is indicated by a broadcast channel.
  • the indication information is carried in high layer signaling or system information.
  • control region where the time-frequency resource unit of the control channel is located occupies at least two orthogonal frequency division multiplexing symbols in the time domain.
  • a base station is provided, the base station being used to implement the method of any one of the foregoing possible implementations of the first aspect or the first aspect.
  • the base station may comprise means for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a fourth aspect provides a terminal device, which is used to implement the method according to any one of the foregoing possible implementation manners of the first aspect or the first aspect.
  • the terminal device may comprise means for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a base station including: a processor, a transmitter, a memory, and a bus system, wherein the processor, the transmitter, and the memory are connected by a bus system, the memory is configured to store instructions or code, and the processor is configured to execute the memory storage The instructions or code cause the base station to perform the method as described in the first aspect or any one of the possible implementations of the first aspect.
  • a terminal device includes: a processor, a receiver, a memory, and a bus system, wherein the processor, the receiver, and the memory are connected by a bus system, the memory is configured to store instructions or code, and the processor is configured to execute the memory.
  • the stored instructions or code cause the terminal device to perform the method as described in the second aspect or any one of the possible implementations of the second aspect.
  • a seventh aspect a computer readable storage medium storing a program for causing a base station to perform the method of any of the first aspect or the first aspect of the first aspect.
  • a computer readable storage medium storing a program, the program causing a terminal device to perform the method of any one of the second aspect or the second aspect of the second aspect .
  • an apparatus including a processor and a memory, the memory storing computer instructions, The processor executes the computer instructions stored in the memory to cause the apparatus to implement any of the first aspect or the first aspect of the first aspect, or the second aspect or any possible implementation of the second aspect The method described in the manner.
  • a computer program when executed on a computer, causing the computer to perform any of the first aspect or any of the possible implementations of the first aspect, or any of the second or second aspect A possible implementation of the method described.
  • Figure 1 is a schematic structural view of a slot
  • FIG. 2 is a schematic flowchart of a resource configuration method of a control channel according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a time-frequency resource unit in a first configuration according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a time-frequency resource unit in a second configuration according to an embodiment of the present application
  • FIG. 5 is another schematic structural diagram of a time-frequency resource unit of a second configuration according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a time-frequency resource region according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a configuration of a time-frequency resource unit according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a configuration of a time-frequency resource unit according to another embodiment of the present application.
  • Figure 9 is a schematic view of a control area
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a base station according to another embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: wireless wifi, Worldwide Interoperability for Microwave Access (WiMAX), and Global System of Communications.
  • Mobile communication GSM system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), and Third Generation Partnership Project (The 3rd)
  • GSM Global System of Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • 3rd Third Generation Partnership Project
  • a wireless access network may include different network elements in different systems.
  • the network elements of the radio access network in Long Term Evolution (LTE) and LTE-A include an evolved base station (eNodeB, eNB), and a wireless access in Wideband Code Division Multiple Access (WCDMA).
  • the network element of the network includes a radio network controller (RNC) and a NodeB.
  • RNC radio network controller
  • WiMax Worldwide Interoperability for Microwave Access
  • the terminal device may also be referred to as a user equipment (UE, User Equipment), a mobile station (MS, Mobile Station), a mobile terminal (Mobile Terminal), etc., and the terminal may be connected by wireless.
  • the RAN Radio Access Network
  • the terminal may be a mobile phone (or "cellular" phone), a computer with communication function, etc., for example, the terminal may also be portable. , pocket, handheld, computer built-in or in-vehicle mobile devices.
  • the term "and/or” is merely an association relationship describing an associated object, indicating that there may be three relationships.
  • a and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 2 is a schematic flowchart of a resource configuration method 200 of a control channel according to an embodiment of the present application. As shown in FIG. 2, method 200 includes the following.
  • the base station determines a configuration of the time-frequency resource unit from at least two configurations of time-frequency resource units of the control channel.
  • the at least two configurations of the time-frequency resource unit include a first configuration and a second configuration, where the configuration of the time-frequency resource unit is one or more configurations of at least two configurations of the time-frequency resource unit.
  • control region where the time-frequency resource unit of the control channel is located occupies at least two orthogonal frequency division multiplexing symbols in the time domain.
  • the control channel can be a downlink control channel.
  • the control channel may be a PDCCH.
  • a control channel is described by taking a PDCCH as an example in the drawing.
  • this embodiment of the present application is not limited thereto, and the control channel may also be other downlink control channels.
  • the time-frequency resource of the control channel may include a plurality of time-frequency resource units.
  • the time-frequency resource unit may include at least one RE.
  • the time-frequency resource unit can be referred to as an REG.
  • the base station sends the indication information to the terminal device, where the indication information is used to indicate the configuration of the time-frequency resource unit.
  • the terminal device After receiving the indication information sent by the base station, the terminal device detects the control channel according to the configuration of the time-frequency resource unit indicated by the indication information.
  • the configuration of the time-frequency resource unit includes a first configuration or a second configuration.
  • the base station can flexibly configure the time-frequency resource unit of the control channel in the control area.
  • the blocking probability of the time-frequency resource unit of different structures can also be reduced, thereby facilitating reducing the complexity of detecting the control channel by the terminal device.
  • the terminal device detects the control channel according to the configuration of the time-frequency resource unit indicated by the base station, and can reduce the complexity of detecting the control channel by the terminal device.
  • the time-frequency resource unit of the first configuration occupies one orthogonal frequency division multiplexing symbol in the time domain, and the reference signal (RS) is located on the orthogonal frequency division multiplexing symbol occupied by the time-frequency resource unit of the first configuration.
  • the time-frequency resource unit adopting the first configuration can reduce the delay and is suitable for services with low delay requirements.
  • the first configured time-frequency resource unit can transmit at least one reference signal, as shown in FIG.
  • the second configured time-frequency resource unit occupies at least two orthogonal frequency division multiplexing symbols in the time domain, and the reference signal is located in at least two orthogonal frequency division multiplexing symbols occupied by the second configured time-frequency resource unit. 1 orthogonal frequency division multiplexing symbol on.
  • the time-frequency resource unit of the second configuration may further include at least one of the following two implementation manners:
  • the number of reference signals carried by each of the at least two orthogonal frequency division multiplexing symbols in the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration is different.
  • the reference signal is located on one of the two orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration, as shown in FIG. 4 .
  • the time-frequency resource unit adopting the second configuration can reduce the overhead of the reference signal and is suitable for the PDCCH that needs to transmit more information bits.
  • the number of reference signals carried by each of the at least two orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration is the same.
  • the reference signals carried by the at least two orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are located in the same frequency domain position, as shown in FIG. 5 .
  • the subcarrier in which the reference signal carried on the first orthogonal frequency division multiplexing symbol in the at least two orthogonal frequency division multiplexing symbols occupied by the second frequency resource unit of the second configuration is located and the second positive
  • the subcarriers on which the reference channel carried on the frequency division multiplexing symbol is located are the same.
  • the reference signals carried by the two orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration may also be located in different frequency domain positions, which is not limited in this embodiment of the present application.
  • the time-frequency resource unit of the second configuration sends a reference signal on two adjacent orthogonal frequency division multiplexing symbols in the time domain, which can improve channel estimation performance, and is applicable to a scenario with limited coverage (such as a cell edge user). Thereby, the demodulation performance of the control channel can be improved.
  • FIG. 4 and FIG. 5 are only described by taking two orthogonal frequency division multiplexing symbols in the time domain as an example, and should not be construed as limiting the embodiments of the present application.
  • the reference signal in the embodiment of the present application can be used to demodulate a control channel.
  • the frequency domain position of the at least one reference signal transmitted by the time-frequency resource unit is not limited in the embodiment of the present application.
  • the sequence symbols of any two reference signals in the same orthogonal frequency division multiplexing symbol in the at least one reference signal may be separated by at least one subcarrier in the frequency domain.
  • the indication information may also be used to indicate a time domain location and/or a frequency domain location of the reference signal carried on the time-frequency resource unit.
  • step 210 the determining, by the base station, the configuration of the time-frequency resource unit of the control channel from the at least two configurations of the time-frequency resource unit, including:
  • the base station determines the configuration of the time-frequency resource unit from at least two configurations of the time-frequency resource unit according to at least one of the number of orthogonal frequency division multiplexing symbols occupied by the control region, the service requirement, and the network environment of the terminal device.
  • the base station may determine that the time-frequency resource unit of the first configuration is used to meet the low delay requirement of the service; and when the time-frequency resources in the control area are relatively small, The base station can determine the time-frequency resource unit of the implementation manner 1 to save the overhead of the reference signal, so as to avoid the limitation of the capacity of the control channel; when the terminal device is located at the cell edge, the base station can determine the time-frequency resource unit adopting the implementation mode 2 To improve the coverage of the reference channel, so that channel estimation performance can be improved.
  • the base station may determine that the configuration of the time-frequency resource unit is the first configuration.
  • the resource configuration method of the control channel in the embodiment of the present application can be applied to requirements of different scenarios.
  • At least one time-frequency resource region may be included in the control region.
  • the control area includes three time-frequency resource regions.
  • One time-frequency resource region can occupy one orthogonal frequency division multiplexing symbol in the time domain, and can also occupy multiple Orthogonal frequency division multiplexing symbols.
  • one time-frequency resource region is located on the orthogonal frequency division multiplexing symbol occupied by the control region in the time domain: for example, if the control region occupies two orthogonal frequency division multiplexing symbols in the time domain, 1 time-frequency resource region is located in the control region of the 2 orthogonal frequency division multiplexing symbols in the time domain; if the control region occupies 3 orthogonal frequency division multiplexing symbols in the time domain, then one time-frequency resource The area is located on the 3 orthogonal frequency division multiplexing symbols occupied by the control area in the time domain.
  • the time-frequency resource region may be referred to as a control sub-band, but the embodiment of the present application does not limit this.
  • control channel is transmitted in at least one time-frequency resource region in the control region.
  • PDCCH1 is transmitted in time-frequency resource region 1
  • PDCCH2 is transmitted in time-frequency resource region 2 and time-frequency resource region 3.
  • At least one time-frequency resource unit may be included in one time-frequency resource region. It should be understood that, in some embodiments, at least one time-frequency resource unit may be included in one time-frequency resource region, and other granular time-frequency resources may also be included.
  • the configurations of time-frequency resource units of different time-frequency resource regions in the at least one time-frequency resource region are the same.
  • configurations of time-frequency resource units of different time-frequency resource regions in the at least one time-frequency resource region are different.
  • the determining, by the base station, the configuration of the time-frequency resource unit from the at least two configurations of the time-frequency resource unit of the control channel the determining, by the base station, determining the at least one time-frequency from the at least two configurations of the time-frequency resource unit
  • the indication information sent by the base station is used to indicate the configuration of the time domain resource unit in each time-frequency resource region in the at least one time-frequency resource region.
  • the base station may respectively indicate each time-frequency resource region to the terminal device.
  • the control region occupies at least 2 orthogonal frequency division multiplexed symbols in the time domain.
  • the configuration of the time-frequency resource unit in the first time-frequency resource region includes a first configuration
  • the configuration of the time-frequency resource unit in the second time-frequency resource region includes the second configuration.
  • the control region occupies at least three orthogonal frequency division multiplexing symbols in the time domain, and the configuration of the time-frequency resource unit in the first time-frequency resource region includes the first configuration, and the second time-frequency resource region
  • the configuration of the time-frequency resource unit includes a first configuration and a second configuration
  • the configuration of the time-frequency resource unit in the third time-frequency resource region includes the second configuration.
  • the time-frequency resource unit of the control channel may include the first configured time-frequency resource unit (as shown in FIG. 7A), and may also include The time-frequency resource unit of the second configuration (as shown in B in FIG. 7 and C in FIG. 7).
  • B is a time-frequency resource unit of implementation manner 1
  • C in FIG. 7 is a time-frequency resource unit of implementation mode 2.
  • the time-frequency resource of the control channel includes at least two time-frequency resource units
  • at least one of the time-frequency resource units may be a time-frequency resource unit of implementation manner 1, at least one
  • the time-frequency resource unit may be a time-frequency resource unit implementing mode 2.
  • the plurality of first-configured time-frequency resource units may be respectively located in different orthogonal regions of the control region. On the frequency division multiplexing symbol; or the first configured time-frequency resource unit may also occupy only one of the at least 2 orthogonal frequency division multiplexing symbols of the control region.
  • the plurality of first configured time-frequency resource units are in the at least two orthogonal frequency bands.
  • the frequency domain positions on the multiplexed symbols may be the same or different, which is not limited in this embodiment of the present application.
  • control region occupies at least three orthogonal frequency division multiplexing symbols in the time domain, and the configuration packet of the time-frequency resource unit The first configuration and/or the second configuration are included.
  • the time-frequency resource unit of the second configuration is located on at least two orthogonal frequency division multiplexing symbols adjacent to each other in the orthogonal frequency division multiplexing symbol occupied by the control region.
  • control region occupies at least three orthogonal frequency division multiplexing symbols in the time domain
  • time-frequency resource unit of the control channel may include only the first configured time-frequency resource unit (as shown in FIG. 8A). ), it is also possible to include only the time-frequency resource unit of the second configuration.
  • the second configured time-frequency resource unit occupies at least 2 orthogonal frequency division symbols in the time domain.
  • the configuration of the time-frequency resource unit may include the first configuration and the second configuration, that is, the time-frequency resource unit of the control channel may include the first-frequency resource unit of the first configuration and the second configuration.
  • the time-frequency resource unit of the second configuration may be located on at least two adjacent orthogonal frequency division multiplexing symbols (as shown by B in FIG. 8 and C in FIG. 8). It should be understood that the time-frequency resource unit of the second configuration in the B of FIG. 8 and the C in FIG. 8 may include the time-frequency resource unit of the first configuration of the second configuration, and may also include the time-frequency of the second implementation manner of the second configuration.
  • the resource unit may further include the implementation manner 1 of the second configuration and the time-frequency resource unit of the second implementation manner.
  • the plurality of first-configured time-frequency resource units may be respectively located in different positive areas of the control area. And intersecting the frequency division multiplexing symbol; or the first configured time-frequency resource unit may also be located only on at least part of the orthogonal frequency division multiplexing symbols in the orthogonal frequency division multiplexing symbols of the control region.
  • the plurality of first configured time-frequency resource units are respectively located on at least part of the orthogonal frequency division multiplexing symbols of the control region, the plurality of first configured time-frequency resource units are in the orthogonal frequency division multiplexing symbols.
  • the frequency domain location may be the same or different, which is not limited in this embodiment of the present application.
  • the second configuration on the at least 2 orthogonal frequency division multiplexing symbols may be the same as the frequency domain location of the first configured time-frequency resource unit located on one orthogonal frequency division multiplexing symbol.
  • Different embodiments of the present application do not limit this.
  • C in FIG. 8, B in FIG. 8, and C in FIG. 8 are merely illustrative examples, and should not be construed as limiting the embodiments of the present application.
  • the base station may send the indication information in multiple implementation manners.
  • the following four implementations are described as an example:
  • the configuration of the time-frequency resource unit has a corresponding relationship with the format of the downlink control information, and the configuration of the time-frequency resource unit is indicated by the format of the downlink control information.
  • the format of the downlink control information may be used to indicate a configuration of a time-frequency resource unit of a control channel transmitted after a preset period of time (eg, at least one slot).
  • step 220 the sending, by the base station, the indication information to the terminal device includes:
  • the base station sends the downlink control information of the corresponding format to the terminal device.
  • the terminal device may determine the time-frequency resource unit of the control channel transmitted after the preset time period according to the corresponding relationship between the configuration of the time-frequency resource unit and the format of the downlink control information and the corresponding format. Configuration.
  • An indication channel may be pre-defined for transmitting indication information indicating a configuration of the time-frequency resource unit, that is, the indication information may be carried in the indication channel.
  • step 220 the sending, by the base station, the indication information to the terminal device includes:
  • the base station sends the indication information to the terminal device by using the indication channel.
  • the indication information may include at least one bit information, for example, the indication channel may include 1-bit, 2-bit or 3-bit information.
  • the indication channel may be transmitted in a time-frequency resource region in the control region.
  • the configuration of the time-frequency resource units of the different time-frequency resource regions in the at least one time-frequency resource region for transmitting the control channel is different.
  • the indicator channel transmitted by each time-frequency resource region is used to indicate a configuration of a time-frequency resource unit in the current time-frequency resource region.
  • the indication information is carried in the downlink control information.
  • control area may include a basic set area and an extended set area, where the control channel where the downlink control information is located is transmitted in the basic set area, and the configuration of the time-frequency resource unit indicated by the indication information is configured to form an extended set area transmission.
  • the configuration of the time-frequency resource unit of the control channel is configured to form an extended set area transmission.
  • step 220 the sending, by the base station, the indication information to the terminal device includes:
  • the base station terminal device sends downlink control information, where the downlink control information includes the indication information, and the control channel where the downlink control information is located is transmitted in the base station aggregation area.
  • the configuration of the time-frequency resource unit of the control channel transmitted in the basic set area may be preset, may be indicated by system information, or may be indicated by a broadcast channel.
  • the indication information is carried in higher layer signaling or system information.
  • step 220 the sending, by the base station, the indication information to the terminal device includes:
  • the base station sends high layer signaling or system information to the terminal device, where the high layer signaling or system information carries the indication information.
  • the high-level signaling may be Radio Resource Control (RRC) signaling, and the system information may be a Master Information Blok (MIB).
  • RRC Radio Resource Control
  • MIB Master Information Blok
  • At least one bit may be set in the higher layer signaling or system information to indicate the configuration of the time-frequency resource unit.
  • the indication information used to indicate the configuration of the time-frequency resource unit may be represented by at least one bit information bit.
  • the indication information may be represented by 2 bits of information bits, for example, 2 bits of information may be set in higher layer signaling, system information, or downlink control information.
  • Bit the meaning of the 2-bit information bit is as follows:
  • the configuration of the time-frequency resource unit includes a first configuration
  • the configuration of the time-frequency resource unit includes a second configuration
  • the indication information may be represented by 3-bit information bits, for example, 3-bit information may be set in higher layer signaling, system information, or downlink control information. Bit, the meaning of the 3-bit information bit is as follows:
  • the configuration of the time-frequency resource unit includes a first configuration
  • the configuration of the time-frequency resource unit includes a first configuration and a second configuration
  • the configuration of the time-frequency resource unit includes a second configuration.
  • the indication information may also be used to indicate an implementation employed by the second configuration.
  • the indication information may further indicate a time domain location and/or a frequency domain location of the reference signal carried on the time-frequency resource unit. This can reduce the complexity of the terminal device detecting the reference signal.
  • the indication information may also indicate a transmission scheme of the control channel.
  • the transmission scheme of the control channel can transmit a scheme such as diversity and beamforming. In this way, the transmission scheme of the transmission control channel of the terminal device can be flexibly scheduled.
  • FIG. 10 is a schematic structural diagram of a base station 1000 according to an embodiment of the present application. As shown in FIG. 10, the base station 1000 includes a processing unit 1010 and a transmitting unit 1020.
  • the processing unit 1010 is configured to determine a configuration of the time-frequency resource unit from at least two configurations of the time-frequency resource unit of the control channel.
  • the sending unit 1020 is configured to send indication information to the terminal device, where the indication information is used to indicate the configuration of the time-frequency resource unit determined by the processing unit 1010.
  • the at least two configurations of the time-frequency resource unit include a first configuration and a second configuration.
  • the first configured time-frequency resource unit occupies one orthogonal frequency division multiplexing symbol in the time domain, and the reference signal is located on the orthogonal frequency division multiplexing symbol occupied by the first configured time-frequency resource unit;
  • the second configured time-frequency resource unit occupies at least two orthogonal frequency division multiplexing symbols in the time domain, and the reference signal is located in at least two orthogonal frequency division multiplexing symbols occupied by the second configured time-frequency resource unit.
  • the base station can flexibly configure the time-frequency resource unit of the control channel in the control area.
  • the blocking probability of the time-frequency resource unit of different structures can also be reduced, thereby facilitating reducing the complexity of detecting the control channel by the terminal device.
  • control region where the time-frequency resource unit of the control channel is located occupies at least two orthogonal frequency division multiplexing symbols in the time domain.
  • control channel is transmitted in at least one time-frequency resource region in the control region.
  • processing unit 1010 is specifically configured to determine, in at least two configurations of the time-frequency resource unit, a configuration of a time-frequency resource unit in each time-frequency resource region in the at least one time-frequency resource region.
  • the indication information is used to indicate a configuration of a time domain resource unit in each time-frequency resource region in the at least one time-frequency resource region.
  • control region where the time-frequency resource unit of the control channel is located occupies at least three orthogonal frequency division multiplexing symbols in the time domain, and the configuration of the time-frequency resource unit includes the first configuration and/or the second configuration.
  • the time-frequency resource unit of the second configuration is located on at least two orthogonal frequency division multiplexing symbols adjacent to each other in the orthogonal frequency division multiplexing symbol occupied by the control region.
  • the first configured time-frequency resource unit and the second configured time-frequency resource unit are located on different orthogonal frequency division multiplexing symbols of the control region.
  • At least two orthogonal frequency division symbols in the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are different in number of reference signals;
  • the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration each have the same number of reference signals.
  • the reference signals carried by the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are located in the same frequency domain position.
  • the configuration of the time-frequency resource unit has a correspondence with the format of the downlink control information, and the configuration of the time-frequency resource unit is indicated by the format of the downlink control information.
  • the processing unit 1010 is further configured to determine a format of the downlink control information corresponding to the configuration of the time-frequency resource unit according to the configuration and the corresponding relationship of the time-frequency resource unit; the sending unit 1020 is specifically configured to send the downlink control information of the corresponding format to the terminal device. .
  • the indication information is carried in the indication channel, indicating that the channel is transmitted in a time-frequency resource region in the control region.
  • control area includes a basic collection area and an extended collection area.
  • the indication information is carried in the downlink control information, where the control channel where the downlink control information is located is transmitted in the basic set region, and the time-frequency resource unit is configured as a time-frequency resource unit that constitutes the time-frequency resource of the control channel transmitted by the extended set region. Configuration.
  • the configuration of the time-frequency resource unit of the control channel transmitted in the basic set region is pre-configured, or the configuration of the time-frequency resource unit of the control channel transmitted in the basic set region is indicated by the broadcast channel.
  • the indication information is carried in higher layer signaling or system information.
  • the base station 1000 may correspond to a base station in the configuration method 200 of the control channel according to the embodiment of the present application, and the above and other operations and/or functions of the respective units in the base station 1000 are respectively implemented in order to implement the map.
  • the corresponding flow of the base station in the method 200 shown in FIG. 2 is not repeated here for brevity.
  • FIG. 11 is a schematic structural diagram of a base station 1100 according to another embodiment of the present application. As shown in FIG. 11, base station 1100 includes a processor 1110, a transmitter 1120, a memory 1130, and a bus system 1140. The various components in base station 1100 are coupled together by bus system 1140.
  • the memory 1130 can be used to store code and the like executed by the processor 1110.
  • Transmitter 1120 is operative to transmit signals under the control of processor 1110.
  • the processor 1110 is configured to implement the function of the processing unit 1010
  • the transmitter 1120 is configured to implement the function of the sending unit 1020.
  • the base station 1100 according to the embodiment of the present application may correspond to the base station in the configuration method 200 of the control channel according to the embodiment of the present application and the base station 1000 according to the embodiment of the present application, and the foregoing and other units of the respective units in the base station 1000
  • the operations and/or functions are respectively implemented in order to implement the corresponding processes of the base station in the method 200 shown in FIG. 2, and are not described herein for brevity.
  • FIG. 12 is a schematic structural diagram of a terminal device 1200 according to an embodiment of the present application. As shown in FIG. 12, the terminal device 1200 includes a receiving unit 1210 and a detecting unit 1220.
  • the receiving unit 1210 is configured to receive indication information that is sent by the base station, where the indication information is used to indicate configuration of a time-frequency resource unit that constitutes a time-frequency resource of the control channel, where the configuration of the time-frequency resource unit is at least two configurations of the base station from the time-frequency resource unit. Determined in the middle.
  • the detecting unit 1220 is configured to detect the control channel according to the configuration of the time-frequency resource unit indicated by the indication information received by the receiving unit 1210.
  • the at least two configurations of the time-frequency resource unit include a first configuration and a second configuration.
  • the first configured time-frequency resource unit occupies one orthogonal frequency division multiplexing symbol in the time domain, and the reference signal is located on the orthogonal frequency division multiplexing symbol occupied by the first configured time-frequency resource unit;
  • the second configured time-frequency resource unit occupies at least two orthogonal frequency division multiplexing symbols in the time domain, and the reference signal is located in at least two orthogonal frequency division multiplexing symbols occupied by the second configured time-frequency resource unit.
  • the base station can flexibly configure the time-frequency resource unit of the control channel in the control area.
  • the blocking probability of the time-frequency resource unit of different structures can also be reduced, thereby facilitating reducing the complexity of detecting the control channel by the terminal device.
  • the terminal device detects the control channel according to the configuration of the time-frequency resource unit indicated by the base station, and can reduce the complexity of detecting the control channel by the terminal device.
  • control region where the time-frequency resource unit of the control channel is located occupies at least two orthogonal frequency division multiplexing symbols in the time domain.
  • control channel is transmitted in at least one time-frequency resource region in the control region, where the indication information is used to indicate a configuration of a time domain resource unit in each time-frequency resource region in the at least one time-frequency resource region.
  • control region occupies at least 3 orthogonal frequency division multiplexing symbols in the time domain, and the configuration of the time-frequency resource unit includes the first configuration and/or the second configuration.
  • the time-frequency resource unit of the second configuration is located on at least two orthogonal frequency division multiplexing symbols adjacent to each other in the orthogonal frequency division multiplexing symbol occupied by the control region.
  • the first configured time-frequency resource unit and the second configured time-frequency resource unit are located on different orthogonal frequency division multiplexing symbols of the control region.
  • At least two orthogonal frequency division symbols in the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are different in number of reference signals;
  • the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource units of the second configuration each have the same number of reference signals.
  • the reference signals carried by the orthogonal frequency division multiplexing symbols occupied by the time-frequency resource unit of the second configuration are located in the same frequency domain position.
  • the configuration of the time-frequency resource unit has a correspondence with the format of the downlink control information, and the configuration of the time-frequency resource unit is indicated by the format of the downlink control information.
  • the receiving unit 1210 is specifically configured to receive downlink control information in a format corresponding to the configuration of the time-frequency resource unit sent by the base station.
  • the indication information is carried in the indication channel, indicating that the channel is transmitted in a time-frequency resource region in the control region.
  • the indication information indicating the channel bearer transmitted in the time-frequency resource region is used to indicate the configuration of the time-frequency resource unit in the time-frequency resource region.
  • the indication information is carried in the downlink control information, where the control area includes a basic set area and an extended set area, where the control channel where the downlink control information is located is transmitted in the basic set area, and the configuration of the time-frequency resource unit is used to control the extended set area transmission.
  • the configuration of the time-frequency resource unit of the channel is carried in the downlink control information, where the control area includes a basic set area and an extended set area, where the control channel where the downlink control information is located is transmitted in the basic set area, and the configuration of the time-frequency resource unit is used to control the extended set area transmission.
  • the configuration of the time-frequency resource unit of the channel is carried in the downlink control information, where the control area includes a basic set area and an extended set area, where the control channel where the downlink control information is located is transmitted in the basic set area, and the configuration of the time-frequency resource unit is used to control the extended set area transmission.
  • the configuration of the time-frequency resource unit of the channel is carried in the downlink control information, where the control area includes
  • control area includes a basic set area, and the configuration of the time-frequency resource unit of the control channel transmitted in the basic set area is pre-configured, or the configuration of the time-frequency resource unit of the control channel transmitted in the basic set area is adopted. Indicated by the broadcast channel.
  • the indication information is carried in higher layer signaling or system information.
  • terminal device 1200 may correspond to the terminal device in the configuration method 200 of the control channel according to the embodiment of the present application, and the above and other operations and/or functions of the respective units in the terminal device 1200 are respectively In order to implement the corresponding process of the terminal device in the method 200 shown in FIG. 2, for brevity, details are not described herein again.
  • FIG. 13 is a schematic structural diagram of a terminal device 1300 according to another embodiment of the present application. As shown in FIG. 13, the terminal device 1300 includes a processor 1310, a receiver 1320, a memory 1330, and a bus system 1340. The various components in terminal device 1300 are coupled together by a bus system 1340.
  • the memory 1330 can be used to store code and the like executed by the processor 1310.
  • Receiver 1320 is operative to receive signals under the control of processor 1310.
  • the processor 1310 is configured to implement the function of the detecting unit 1220
  • the receiver 1320 is configured to implement the function of the receiving unit 1210.
  • terminal device 1300 may correspond to the terminal device in the configuration method 200 of the control channel according to the embodiment of the present application and the terminal device 1200 according to the embodiment of the present application, and each unit in the terminal device 1300
  • the foregoing and other operations and/or functions are respectively implemented to implement the corresponding processes of the terminal device in the method 200 shown in FIG. 2, and are not described herein again for brevity.
  • bus system in the above embodiments may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • bus system in the above embodiments may include a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as a bus system in the figure.
  • the memory in each of the above embodiments may include a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory, such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory may further include a combination of the above types of memories.
  • RAM random-access memory
  • non-volatile memory such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD)
  • the memory may further include a combination of the above types of memories.
  • the processor in each of the above embodiments may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present application, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请实施例提供了一种控制信道的配置方法、基站和终端设备，该方法包括：基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置；基站向终端设备发送指示信息，指示信息用于指示时频资源单元的配置；其中，时频资源单元的至少两种配置包括第一配置和第二配置。本申请实施例中，基站能够灵活配置控制信道的时频资源单元。而且，通过灵活配置时频资源单元还能够降低不同结构的时频资源单元的阻塞概率，从而有利于降低终端设备检测控制信道的复杂度。

Description

控制信道的资源配置方法、基站和终端设备
本申请要求于2016年11月03日提交中国专利局、申请号为201610974288.1、申请名称为“控制信道的资源配置方法、基站和终端设备”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，尤其涉及控制信道的资源配置方法、基站和终端设备。
背景技术
在第五代无线接入系统标准新空口(New Radio，NR)中，频域上的基本单位为一个子载波，时域上的基本单位为一个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号。资源元素(Resource Element，RE)为最小的的物理资源，包含一个OFDM符号内的一个子载波。
在NR中，时域的基本调度单位为时隙(slot)或mini-slot，slot或mini-slot由若干个OFDM符号组成。如图1所示，slot可分为控制区域和数据区域，下行控制信道(Physical Downlink Control Channel，PDCCH)携带下行控制信息(Downlink Control Information，DCI)在控制区域中传输。资源元素组(Resource-Element Group，REG)是控制区域内组成下行控制信道的时频资源的时频资源单元。
现有方案中采用固定结构的REG传输下行控制信道，无法灵活配置。
发明内容
本申请实施例提供了一种控制信道的资源配置方法、基站和终端设备，能够灵活配置控制区域内控制信道的时频资源单元。
第一方面，提供了一种控制信道的资源配置方法，包括：
基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置，
所述基站向所述终端设备发送指示信息，所述指示信息用于指示所述时频资源单元的配置；
其中，所述时频资源单元的至少两种配置包括第一配置和第二配置，
所述第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于所述第一配置的时频资源单元占用的所述正交频分复用符号上；
所述第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于所述第二配置的时频资源单元占用的所述至少2个正交频分复用符号中的至少1个正交频分复用符号上。
本申请实施例中，基站能够灵活配置控制区域内控制信道的时频资源单元。
而且，通过灵活配置时频资源单元还能够降低不同结构的时频资源单元的阻塞概率， 从而有利于降低终端设备检测控制信道的复杂度。
在一种可能的实现方式中，所述控制信道在控制区域中的至少一个时频资源区域传输，
基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置，包括：
所述基站从所述时频资源单元的至少两种配置中确定所述至少一个时频资源区域中每个时频资源区域内的时频资源单元的配置，
所述指示信息用于指示所述至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
在一种可能的实现方式中，所述控制信道的时频资源单元所在的控制区域在时域上占用至少3个正交频分复用符号，所述时频资源单元的配置包括所述第一配置和/或所述第二配置。
在一种可能的实现方式中，所述第二配置的时频资源单元位于所述控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
在一种可能的实现方式中，在同一时频资源区域中，所述第一配置的时频资源单元与所述第二配置的时频资源单元位于所述控制区域的不同正交频分复用符号上。
在一种可能的实现方式中，所述第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
在一种可能的实现方式中，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
在一种可能的实现方式中，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于不同的频域位置。
在一种可能的实现方式中，所述时频资源单元的配置与下行控制信息的格式具有对应关系，所述时频资源单元的配置是通过所述下行控制信息的格式指示的；
所述基站向所述终端设备发送指示信息包括：
所述基站根据所述时频资源单元的配置和所述对应关系确定所述时频资源单元的配置对应的下行控制信息的格式；
所述基站向所述终端设备发送所述对应格式的下行控制信息。
在一种可能的实现方式中，所述指示信息携带在指示信道中，所述指示信道在所述控制区域中的时频资源区域传输。
在一种可能的实现方式中，所述时频资源区域内传输的指示信道承载的指示信息用于指示所述时频资源区域内的时频资源单元的配置。
在一种可能的实现方式中，所述指示信息携带在下行控制信息中，
所述控制区域包括基本集合区域和扩展集合区域，所述下行控制信息所在的控制信道在所述基本集合区域传输，所述时频资源单元的配置为所述扩展集合区域传输的控制信道的时频资源单元的配置。
在一种可能的实现方式中，所述控制区域包括基本集合区域，
所述基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，所 述基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
在一种可能的实现方式中，所述指示信息携带在高层信令或系统信息中。
在一种可能的实现方式中，所述控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
第二方面，提供了一种控制信道的资源配置方法，包括：
终端设备接收基站发送的指示信息，所述指示信息用于指示控制信道时频资源单元的配置，所述时频资源单元的配置是所述基站从时频资源单元的至少两种配置中确定的；
所述终端设备根据所述时频资源单元的配置检测所述控制信道，
其中，所述时频资源单元的至少两种配置包括第一配置和第二配置，
所述第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于所述第一配置的时频资源单元占用的所述正交频分复用符号上；
所述第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于所述第二配置的时频资源单元占用的所述至少2个正交频分复用符号中的至少1个正交频分复用符号上。
本申请实施例中，基站能够灵活配置控制区域内组成控制信道的时频资源的时频资源单元。
而且，通过灵活配置时频资源单元还能够降低不同结构的时频资源单元的阻塞概率，从而有利于降低终端设备检测控制信道的复杂度。
另外，终端设备根据基站指示的时频资源单元的配置检测控制信道，能够降低终端设备检测控制信道的复杂度。
在一种可能的实现方式中，所述控制信道在控制区域中的至少一个时频资源区域传输，
所述指示信息用于指示所述至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
在一种可能的实现方式中，所述控制区域在时域上占用至少3个正交频分复用符号，所述时频资源单元的配置包括所述第一配置和/或所述第二配置。
在一种可能的实现方式中，所述第二配置的时频资源单元位于所述控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
在一种可能的实现方式中，在同一时频资源区域中，所述第一配置的时频资源单元与所述第二配置的时频资源单元位于所述控制区域的不同正交频分复用符号上。
在一种可能的实现方式中，所述第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
在一种可能的实现方式中，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
在一种可能的实现方式中，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于不同的频域位置。
在一种可能的实现方式中，所述时频资源单元的配置与下行控制信息的格式具有对应 关系，所述时频资源单元的配置是通过所述下行控制信息的格式指示的；
所述终端设备接收基站发送的指示信息，包括：
所述终端设备接收所述基站发送的与所述时频资源单元的配置对应的格式的下行控制信息。
在一种可能的实现方式中，所述指示信息携带在指示信道中，所述指示信道在控制区域中的时频资源区域传输。
在一种可能的实现方式中，所述时频资源区域内传输的指示信道承载的指示信息用于指示所述时频资源区域内的时频资源单元的配置。
在一种可能的实现方式中，所述指示信息携带在下行控制信息中，
所述控制区域包括基本集合区域和扩展集合区域，所述下行控制信息所在的控制信道在所述基本集合区域传输，所述时频资源单元的配置为所述扩展集合区域传输的控制信道的时频资源单元的配置。
在一种可能的实现方式中，所述控制区域包括基本集合区域，
所述基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，所述基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
在一种可能的实现方式中，所述指示信息携带在高层信令或系统信息中。
在一种可能的实现方式中，所述控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
第三方面，提供了一种基站，该基站用于实现第一方面或第一方面的上述任一种可能的实现方式所述的方法。
具体地，基站可以包括用于执行第一方面或第一方面的任一种可能的实现方式中所述的方法的单元。
第四方面，提供了一种终端设备，该终端设备用于实现第一方面或第一方面的上述任一种可能的实现方式所述的方法。
具体地，终端设备可以包括用于执行第一方面或第一方面的任一种可能的实现方式中所述的方法的单元。
第五方面，提供了一种基站，包括：处理器、发送器、存储器和总线系统，处理器、发送器和存储器通过总线系统相连，存储器用于存储指令或代码，处理器用于执行该存储器存储的指令或代码，使得基站执行如第一方面或第一方面的任一种可能的实现方式所述的方法。
第六方面，提供了一种终端设备，包括：处理器、接收器、存储器和总线系统，处理器、接收器和存储器通过总线系统相连，存储器用于存储指令或代码，处理器用于执行该存储器存储的指令或代码，使得终端设备执行如第二方面或第二方面的任一种可能的实现方式所述的方法。
第七方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有程序，该程序使得基站执行上述第一方面或第一方面的任一种可能的实现方式所述的方法。
第八方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有程序，该程序使得终端设备执行上述第二方面或第二方面的任一种可能的实现方式所述的方法。
第九方面，提供了一种装置，包括处理器以及存储器，所述存储器存储计算机指令， 所述处理器执行所述存储器存储的计算机指令，以使得该装置实现上述第一方面或第一方面的任一种可能的实现方式，或者第二方面或第二方面的任一种可能的实现方式所述的方法。
第十方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一种可能的实现方式，或者第二方面或第二方面的任一种可能的实现方式所述的方法。
附图说明
图1是slot的结构示意图；
图2是根据本申请实施例的控制信道的资源配置方法的示意性流程图；
图3是根据本申请实施例的第一配置的时频资源单元的结构示意图；
图4是根据本申请实施例的第二配置的时频资源单元的结构示意图；
图5是根据本申请实施例的第二配置的时频资源单元的另一结构示意图；
图6是根据本申请实施例的时频资源区域的示意图；
图7是根据本申请实施例的时频资源单元的配置的示意图；
图8是根据本申请另一实施例的时频资源单元的配置的示意图；
图9是控制区域的示意图；
图10是根据本申请实施例的基站的结构示意图；
图11是根据本申请另一实施例的基站的结构示意图；
图12是根据本申请实施例的终端设备的结构示意图；
图13是根据本申请是另一实施例的终端设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
应理解，本申请实施例的的技术方案可以应用于各种通信系统，例如：无线保真(wifi)、全球微波互联接入(Worldwide Interoperability for Microwave Access，WiMAX)、全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、以及第三代合作伙伴计划(The 3rd Generation Partnership Project，3GPP)相关的蜂窝系统等，本申请实施例并不限定，但为描述方便，本申请实施例将以LTE网络为例进行说明。
本申请实施例可以用于不同的制式的无线网络。无线接入网络在不同的系统中可包括不同的网元。例如，长期演进(Long Term Evolution，LTE)和LTE-A中无线接入网络的网元包括演进型基站(eNodeB，eNB)，宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中无线接入网络的网元包括无线网络控制器(Radio Network Controller，RNC)和NodeB，类似地，全球微波互联接入(Worldwide Interoperability for Microwave Access，WiMax)等其它无线网络也可以使用与本申请实施例类似的方案，只是基站系统中 的相关模块可能有所不同，本申请实施例并不限定，但为描述方便，下述实施例将以基站为例进行说明。
还应理解，在本申请实施例中，终端设备也可称之为用户设备(UE，User Equipment)、移动台(MS，Mobile Station)、移动终端(Mobile Terminal)等，该终端可以经无线接入网(RAN，Radio Access Network)与一个或多个核心网进行通信，例如，终端可以是移动电话(或称为“蜂窝”电话)、具有通信功能的计算机等，例如，终端还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
应理解，在本申请实施例中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系。例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请实施例中的“第一”、“第二”只是用于区分，不代表先后或大小的含义。
图2是根据本申请实施例的控制信道的资源配置方法200的示意性流程图。如图2所示，方法200包括如下内容。
210、基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置。
其中，该时频资源单元的至少两种配置包括第一配置和第二配置，该时频资源单元的配置为该时频资源单元的至少两种配置中的一种或多种配置。
可选地，控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
该控制信道可以为下行控制信道。例如，该控制信道可以为PDCCH，为描述方便，附图中以PDCCH为例描述控制信道。但本申请实施例对此并不限定，该控制信道还可以为其他下行控制信道。
控制信道的时频资源可以包括多个时频资源单元。
该时频资源单元可以包括至少一个RE。例如，该时频资源单元可以称为REG。
220、基站向终端设备发送指示信息，指示信息用于指示时频资源单元的配置。
230、终端设备接收到基站发送的该指示信息之后，根据该指示信息指示的时频资源单元的配置检测控制信道。
其中，时频资源单元的配置包括第一配置或第二配置。
本申请实施例中，基站能够灵活配置控制区域内控制信道的时频资源单元。
而且，通过灵活配置时频资源单元还能够降低不同结构的时频资源单元的阻塞概率，从而有利于降低终端设备检测控制信道的复杂度。
另外，终端设备根据基站指示的时频资源单元的配置检测控制信道，能够降低终端设备检测控制信道的复杂度。
第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号(Reference Signal，RS)位于第一配置的时频资源单元占用的正交频分复用符号上。采用该第一配置的时频资源单元能够降低时延，适用于具有低时延需求的业务。第一配置的时频资源单元可以传输至少一个参考信号，如图3所示。
第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于第二配置的时频资源单元占用的至少2个正交频分复用符号中的至少1个正交频分复用符号 上。
可选地，第二配置的时频资源单元还可以包括以下两种实现方式中的至少一种：
实现方式一
第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分复用符号各自承载的参考信号的数量不同。可选地，参考信号位于第二配置的时频资源单元占用的2个正交频分复用符号中的一个正交频分复用符号上，如图4所示。采用该第二配置的时频资源单元能够减少参考信号的开销，适用于需要传输较多信息比特的PDCCH。
实现方式二
第二配置的时频资源单元占用的至少2个正交频分复用符号各自承载的参考信号的数量相同。可选地，第二配置的时频资源单元占用的至少2个正交频分复用符号各自承载的参考信号位于相同的频域位置，如图5所示。换句话说，第二配置的时频资源单元占用的至少2个正交频分复用符号中的第一个正交频分复用符号上承载的参考信号所在的子载波与第二个正交频分复用符号上承载的参考信道所在的子载波相同。应注意，第二配置的时频资源单元占用的2个正交频分复用符号各自承载的参考信号也可以位于不同的频域位置，本申请实施例对此并不限定。该第二配置的时频资源单元在时域上相邻的两个正交频分复用符号上发送参考信号，能够提高信道估计性能，适用于覆盖受限的场景(如小区边缘用户)，从而能够提高控制信道的解调性能。
应理解，图4和图5仅以时域上的2个正交频分复用符号为例进行描述，而不应对本申请实施例构成任何限定。
本申请实施例中的参考信号可以用于解调控制信道。
应理解，本申请实施例对时频资源单元传输的至少一个参考信号的频域位置不做限定。例如，该至少一个参考信号中在同一个正交频分复用符号的任意两个参考信号的序列符号在频域上可以间隔至少一个子载波。
可选地，指示信息还可以用于指示时频资源单元上承载的参考信号的时域位置和/或频域位置。
可选地，在步骤210中，基站从时频资源单元的至少两种配置中确定控制信道的时频资源单元的配置，包括：
基站根据控制区域占用的正交频分复用符号的数量、业务需求和终端设备的网络环境中的至少一项从时频资源单元的至少两种配置中确定该时频资源单元的配置。
例如，在业务要求较低的时延的情况下，基站可以确定采用第一配置的时频资源单元，以满足业务的低时延需求；在控制区域内的时频资源比较少的情况下，基站可以确定采用实现方式一的时频资源单元，以节省参考信号的开销，从而能够避免控制信道的容量受到限制；在终端设备位于小区边缘时，基站可以确定采用实现方式二的时频资源单元，以提高参考信道的覆盖，使得能够提高信道估计性能。
需要说明的是，如果控制区域在时域上占用一个正交频分复用符号，则基站可以确定时频资源单元的配置为第一配置。
因此，本申请实施例的控制信道的资源配置方法能够适用于不同场景的需求。
控制区域内可以包括至少一个时频资源区域。如图6所示，控制区域内包括3个时频资源区域。1个时频资源区域在时域上可以占用1个正交频分复用符号，也可以占用多个 正交频分复用符号。需要说明的是，1个时频资源区在时域上位于控制区域占用的正交频分复用符号上：例如，若控制区域在时域上占用2个正交频分复用符号，则1个时频资源区域在时域上位于控制区域占用的该2个正交频分复用符号；若控制区域在时域上占用3个正交频分复用符号，则1个时频资源区域在时域上位于该控制区域占用的该3个正交频分复用符号上。时频资源区域可以称为控制子带(control subband)，但本申请实施例对此并不限定。
可选地，控制信道在控制区域中的至少一个时频资源区域传输。如图6所示，PDCCH1在时频资源区域1传输，PDCCH2在时频资源区域2和时频资源区域3传输。1个时频资源区域内可以包括至少一个时频资源单元。应理解，在一些实施例中，1个时频资源区域内不仅可以包括至少一个时频资源单元，还可以包括其他粒度的时频资源。
在一些实施例中，该至少一个时频资源区域中的不同时频资源区域的时频资源单元的配置相同。
在一些实施例中，该至少一个时频资源区域中的不同时频资源区域的时频资源单元的配置不同。相应地，步骤210中，基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置，包括：基站从该时频资源单元的至少两种配置中确定至少一个时频资源区域中每个时频资源区域内的时频资源单元的配置。基站发送的指示信息用于指示至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。也就是说，当控制区域中用于传输控制信道的至少一个时频资源区域中的不同时频资源区域的时频资源单元的配置不同时，基站可以向终端设备分别指示每个时频资源区域内的时频资源单元的配置。
在一些实施例中，控制区域在时域上占用至少2个正交频分复用符号。相应地，第一时频资源区域内的时频资源单元的配置包括第一配置，第二时频资源区域内的时频资源单元的配置包括第二配置。在一些实施例中，控制区域在时域上占用至少3个正交频分复用符号，第一时频资源区域内的时频资源单元的配置包括第一配置，第二时频资源区域内的时频资源单元的配置包括第一配置和第二配置，第三时频资源区域内的时频资源单元的配置包括第二配置。
控制区域在时域上占用至少2个正交频分复用符号时，控制信道的时频资源单元可以包括第一配置的时频资源单元(如图7中A所示)，也可以包括第二配置的时频资源单元(如图7中B和图7中C所示)。其中，图7中B中为实现方式一的时频资源单元，图7中C中为实现方式二的时频资源单元。需要说明的是，如图7中D所示，若控制信道的时频资源包括至少两个时频资源单元时，其中至少一个时频资源单元可以为实现方式一的时频资源单元，至少一个时频资源单元可以为实现方式二的时频资源单元。
需要说明的是，控制区域内只包括第一配置的时频资源单元时，可以如图7中A所示，多个第一配置的时频资源单元中可以分别位于控制区域的不同的正交频分复用符号上；或者第一配置的时频资源单元也可以仅占用控制区域的至少2个正交频分复用符号中的一个正交频分复用符号。另外，当多个第一配置的时频资源单元分别位于控制区域的至少2个正交频分复用符号上时，该多个第一配置的时频资源单元在该至少2个正交频分复用符号上的频域位置可以相同，也可以不同，本申请实施例对此不做限定。
可选地，控制区域在时域上占用至少3个正交频分复用符号，时频资源单元的配置包 括第一配置和/或第二配置。
可选地，第二配置的时频资源单元位于控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
在一些实施例中，控制区域在时域上占用至少3个正交频分复用符号，控制信道的时频资源单元可以只包括第一配置的时频资源单元(如图8中A所示)，也可以只包括第二配置的时频资源单元。
在一些实施例中，第二配置的时频资源单元在时域上占用至少2个正交频分符号上。相应地，时频资源单元的配置可以包括第一配置和第二配置，即控制信道的时频资源单元可以包括第一配置和第二配置的时频资源单元。
第二配置的时频资源单元可以位于相邻的至少2个正交频分复用符号上(如图8中B和图8中C所示)。应理解，图8中B和图8中C中的第二配置的时频资源单元可以包括第二配置的实现方式一的时频资源单元，也可以包括第二配置的实现方式二的时频资源单元，还可以包括第二配置的实现方式一和实现方式二的时频资源单元。
应注意，控制信道的时频资源单元只包括第一配置的时频资源单元时，可以如图8中A所示，多个第一配置的时频资源单元可以分别位于控制区域的不同的正交频分复用符号上；或者第一配置的时频资源单元也可以仅位于控制区域的正交频分复用符号中的至少部分正交频分复用符号上。另外，当多个第一配置的时频资源单元分别位于控制区域的至少部分正交频分复用符号上时，该多个第一配置的时频资源单元在这些正交频分复用符号上的频域位置可以相同，也可以不同，本申请实施例对此不做限定。还应注意，位于至少2个正交频分复用符号上的第二配置与位于1个正交频分复用符号上的第一配置的时频资源单元的频域位置可以相同，也可以不同，本申请实施例对此不做限定。图8中A、图8中B和图8中C仅为示意性的例子，而不应对本申请实施例构成任何限定。
可选地，步骤220中，基站可以采用多种实现方式发送指示信息。下面以四种实现方式为例描述：
第一种实现方式
时频资源单元的配置与下行控制信息的格式具有对应关系，时频资源单元的配置是通过下行控制信息的格式指示的。下行控制信息的格式可以用于指示预设时段(如至少一个时隙)之后传输的控制信道的时频资源单元的配置。
相应地，步骤220中，基站向终端设备发送指示信息包括：
基站根据时频资源单元的配置和对应关系确定时频资源单元的配置对应的下行控制信息的格式；
基站向终端设备发送该对应格式的下行控制信息。
终端设备接收到该对应格式的下行控制信息之后，根据时频资源单元的配置与下行控制信息的格式具有对应关系和该对应格式，即可确定预设时段之后传输的控制信道的时频资源单元的配置。
第二种实现方式
可以预先定义一种指示信道，该指示信道用于传输用于指示时频资源单元的配置的指示信息，即该指示信息可以携带在该指示信道中。
相应地，步骤220中，基站向终端设备发送指示信息包括：
基站通过指示信道向终端设备发送该指示信息。
该指示信息可以包括至少一个比特信息，例如该指示信道可以包括1比特、2比特或3比特信息。
可选地，该指示信道可以在控制区域中的时频资源区域传输。
在一些实施例中，用于传输控制信道的至少一个时频资源区域中的不同时频资源区域的时频资源单元的配置不同。
可选地，每个时频资源区域传输的指示信道用于指示该当前时频资源区域内的时频资源单元的配置。
第三种实现方式
指示信息携带在下行控制信息中。
如图9所示，控制区域可以包括基本集合区域和扩展集合区域，该下行控制信息所在的控制信道在基本集合区域传输，该指示信息指示的时频资源单元的配置为组成扩展集合区域传输的控制信道的时频资源单元的配置。
相应地，步骤220中，基站向终端设备发送指示信息包括：
基站终端设备发送下行控制信息，该下行控制信息包括该指示信息，该下行控制信息所在的控制信道在基板集合区域传输。
可选地，基本集合区域中传输的控制信道的时频资源单元的配置可以是预先设置的，也可以是由系统信息指示的，也可以是通过广播信道指示的。
第四种实现方式
指示信息携带在高层信令或系统信息中。
相应地，步骤220中，基站向终端设备发送指示信息包括：
基站向终端设备发送高层信令或系统信息，该高层信令或系统信息携带该指示信息。
其中，该高层信令可以为无线资源控制(Radio Resource Control，RRC)信令，系统信息可以为主信息块(Master Information Blok，MIB)。
可以在该高层信令或系统信息中设置至少一个比特，表示时频资源单元的配置。
本申请实施例中，可以用至少一个比特信息位表示用于指示时频资源单元的配置的指示信息。
例如，当控制区域在时域上占用2个正交频分复用符号时，可以用2比特信息位表示该指示信息，例如可以在高层信令、系统信息或下行控制信息中设置2比特信息位，该2比特信息位的含义如下：
00：时频资源单元的配置包括第一配置；
01：时频资源单元的配置包括第二配置；
10～11：保留。
例如，当控制区域在时域上占用3个正交频分复用符号时，可以用3比特信息位表示该指示信息，例如可以在高层信令、系统信息或下行控制信息中设置3比特信息位，该3比特信息位的含义如下：
000：时频资源单元的配置包括第一配置；
001：时频资源单元的配置包括第一配置和第二配置；
010：时频资源单元的配置包括第二配置；
011～111：保留。
应理解，以上只是以2比特和3比特为例描述，但本申请实施例对此并不限定，还可以采用其他数量的比特表示指示信息。例如，当用1个比特表示时，“0”可以表示时频资源单元的配置包括第一配置，“1”可以表示时频资源单元的配置包括第二配置。
应理解，当第二配置包括多种实现方式时，指示信息还可以用于指示第二配置采用的实现方式。
可选地，该指示信息还可以指示时频资源单元上承载的参考信号的时域位置和/或频域位置。这样能够降低终端设备检测参考信号的复杂度。
可选地，该指示信息还可以指示控制信道的传输方案。控制信道的传输方案可以发射分集、波束成形等方案。这样能够灵活调度终端设备传输控制信道的传输方案。
上文结合图2至图9描述了根据本申请实施例的控制信道的资源配置方法，下面结合图10至图13描述根据本申请实施例的基站和终端设备。
图10是根据本申请实施例的基站1000的结构示意图。如图10所示，基站1000包括处理单元1010和发送单元1020。
处理单元1010用于从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置。
发送单元1020用于向终端设备发送指示信息，指示信息用于指示处理单元1010确定的时频资源单元的配置。
其中，时频资源单元的至少两种配置包括第一配置和第二配置，
第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于第一配置的时频资源单元占用的正交频分复用符号上；
第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于第二配置的时频资源单元占用的至少2个正交频分复用符号中的至少1个正交频分复用符号上。
本申请实施例中，基站能够灵活配置控制区域内控制信道的时频资源单元。
而且，通过灵活配置时频资源单元还能够降低不同结构的时频资源单元的阻塞概率，从而有利于降低终端设备检测控制信道的复杂度。
可选地，控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
可选地，控制信道在控制区域中的至少一个时频资源区域传输。相应地，处理单元1010可以具体用于，时频资源单元的至少两种配置中确定至少一个时频资源区域中每个时频资源区域内的时频资源单元的配置。其中指示信息用于指示至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
可选地，控制信道的时频资源单元所在的控制区域在时域上占用至少3个正交频分复用符号，时频资源单元的配置包括第一配置和/或第二配置。
可选地，第二配置的时频资源单元位于控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
可选地，在同一时频资源区域中，第一配置的时频资源单元与第二配置的时频资源单元位于控制区域的不同正交频分复用符号上。
可选地，第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
可选地，第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
可选地，时频资源单元的配置与下行控制信息的格式具有对应关系，时频资源单元的配置是通过下行控制信息的格式指示的。相应地，处理单元1010还用于根据时频资源单元的配置和对应关系确定时频资源单元的配置对应的下行控制信息的格式；发送单元1020具体用于向终端设备发送对应格式的下行控制信息。
可选地，指示信息携带在指示信道中，指示信道在控制区域中的时频资源区域传输。
可选地，控制区域包括基本集合区域和扩展集合区域。
可选地，指示信息携带在下行控制信息中，下行控制信息所在的控制信道在基本集合区域传输，时频资源单元的配置为组成扩展集合区域传输的控制信道的时频资源的时频资源单元的配置。
可选地，基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
可选地，指示信息携带在高层信令或系统信息中。
应理解，根据本申请实施例的基站1000可对应于根据本申请实施例的控制信道的配置方法200中的基站，并且基站1000中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中基站的相应流程，为了简洁，在此不再赘述。
应注意，处理单元1010可以由处理器实现，发送单元1020可以由发送器实现。图11是根据本申请另一实施例的基站1100的结构示意图。如图11所示，基站1100包括处理器1110、发送器1120、存储器1130和总线系统1140。基站1100中的各个组件通过总线系统1140耦合在一起。
其中，存储器1130可以用于存储处理器1110执行的代码等。发送器1120用于在处理器1110的控制下发送信号。
具体地，处理器1110用于实现处理单元1010的功能，发送器1120用于实现发送单元1020的功能。
应理解，根据本申请实施例的基站1100可对应于根据本申请实施例的控制信道的配置方法200中的基站以及根据本申请实施例的基站1000，并且基站1000中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中基站的相应流程，为了简洁，在此不再赘述。
图12是根据本申请实施例的终端设备1200的结构示意图。如图12所示，终端设备1200包括接收单元1210和检测单元1220。
接收单元1210用于接收基站发送的指示信息，指示信息用于指示组成控制信道的时频资源的时频资源单元的配置，时频资源单元的配置是基站从时频资源单元的至少两种配置中确定的。
检测单元1220用于根据接收单元1210接收到的指示信息指示的时频资源单元的配置检测控制信道。
其中，时频资源单元的至少两种配置包括第一配置和第二配置，
第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于第一配置的时频资源单元占用的正交频分复用符号上；
第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于第二配置的时频资源单元占用的至少2个正交频分复用符号中的至少1个正交频分复用符号上。
本申请实施例中，基站能够灵活配置控制区域内控制信道的时频资源单元。
而且，通过灵活配置时频资源单元还能够降低不同结构的时频资源单元的阻塞概率，从而有利于降低终端设备检测控制信道的复杂度。
另外，终端设备根据基站指示的时频资源单元的配置检测控制信道，能够降低终端设备检测控制信道的复杂度。
可选地，控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
可选地，控制信道在控制区域中的至少一个时频资源区域传输，指示信息用于指示至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
可选地，控制区域在时域上占用至少3个正交频分复用符号，时频资源单元的配置包括第一配置和/或第二配置。
可选地，第二配置的时频资源单元位于控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
可选地，在同一时频资源区域中，第一配置的时频资源单元与第二配置的时频资源单元位于控制区域的不同正交频分复用符号上。
可选地，第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
可选地，第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
可选地，时频资源单元的配置与下行控制信息的格式具有对应关系，时频资源单元的配置是通过下行控制信息的格式指示的。相应地，接收单元1210具体用于接收基站发送的与时频资源单元的配置对应的格式的下行控制信息。
可选地，指示信息携带在指示信道中，指示信道在控制区域中的时频资源区域传输。
可选地，该时频资源区域内传输的指示信道承载的指示信息用于指示该时频资源区域内的时频资源单元的配置。
可选地，指示信息携带在下行控制信息中，控制区域包括基本集合区域和扩展集合区域，下行控制信息所在的控制信道在基本集合区域传输，时频资源单元的配置为扩展集合区域传输的控制信道的时频资源单元的配置。
可选地，控制区域包括基本集合区域，基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
可选地，指示信息携带在高层信令或系统信息中。
应理解，根据本申请实施例的终端设备1200可对应于根据本申请实施例的控制信道的配置方法200中的终端设备，并且终端设备1200中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中终端设备的相应流程，为了简洁，在此不再赘述。
应注意，接收单元1210可以由接收器实现，检测单元1220可以由处理器实现。图13是根据本申请另一实施例的终端设备1300的结构示意图。如图13所示，终端设备1300包括处理器1310、接收器1320、存储器1330和总线系统1340。终端设备1300中的各个组件通过总线系统1340耦合在一起。
其中，存储器1330可以用于存储处理器1310执行的代码等。接收器1320用于在处理器1310的控制下接收信号。
具体地，处理器1310用于实现检测单元1220的功能，接收器1320用于实现接收单元1210的功能。
应理解，根据本申请实施例的终端设备1300可对应于根据本申请实施例的控制信道的配置方法200中的终端设备以及根据本申请实施例的终端设备1200，并且终端设备1300中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中终端设备的相应流程，为了简洁，在此不再赘述。
需要说明的是，以上各实施例中的总线系统除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线。为便于表示，在图中将各种总线都标为总线系统。
以上各实施例中的存储器可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)、硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合。
以上各实施例中的处理器可以是中央处理器(central processing unit，CPU)、网络处理器(network processor，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(application-specific integrated circuit，ASIC)、可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)、现场可编程逻辑门阵列(field-programmable gate array，FPGA)、通用阵列逻辑(generic array logic，GAL)或其任意组合。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显 示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (59)

  1. 一种控制信道的资源配置方法，其特征在于，包括：
    基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置，
    所述基站向所述终端设备发送指示信息，所述指示信息用于指示所述时频资源单元的配置；
    其中，所述时频资源单元的至少两种配置包括第一配置和第二配置，
    所述第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于所述第一配置的时频资源单元占用的所述正交频分复用符号上；
    所述第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于所述第二配置的时频资源单元占用的所述至少2个正交频分复用符号中的至少1个正交频分复用符号上。
  2. 根据权利要求1所述的方法，其特征在于，所述控制信道在控制区域中的至少一个时频资源区域传输，
    基站从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置，包括：
    所述基站从所述时频资源单元的至少两种配置中确定所述至少一个时频资源区域中每个时频资源区域内的时频资源单元的配置，
    所述指示信息用于指示所述至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
  3. 根据权利要求1或2所述的方法，其特征在于，所述控制信道的时频资源单元所在的控制区域在时域上占用至少3个正交频分复用符号，所述时频资源单元的配置包括所述第一配置和/或所述第二配置。
  4. 根据权利要求3所述的方法，其特征在于，所述第二配置的时频资源单元位于所述控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
  5. 根据权利要求3或4所述的方法，其特征在于，在同一时频资源区域中，所述第一配置的时频资源单元与所述第二配置的时频资源单元位于所述控制区域的不同正交频分复用符号上。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，
    所述第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
    所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
  7. 根据权利要求6所述的方法，其特征在于，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述时频资源单元的配置与下行控制信息的格式具有对应关系，所述时频资源单元的配置是通过所述下行控制信息的格式指示的；
    所述基站向所述终端设备发送指示信息包括：
    所述基站根据所述时频资源单元的配置和所述对应关系确定所述时频资源单元的配置对应的下行控制信息的格式；
    所述基站向所述终端设备发送所述对应格式的下行控制信息。
  9. 根据权利要求1至7中任一项所述的方法，其特征在于，所述指示信息携带在指示信道中，所述指示信道在控制区域中的时频资源区域传输。
  10. 根据权利要求9所述的方法，其特征在于，所述时频资源区域内传输的指示信道承载的指示信息用于指示所述时频资源区域内的时频资源单元的配置。
  11. 根据权利要求1至7中任一项所述的方法，其特征在于，所述指示信息携带在下行控制信息中，
    所述控制区域包括基本集合区域和扩展集合区域，所述下行控制信息所在的控制信道在所述基本集合区域传输，所述时频资源单元的配置为所述扩展集合区域传输的控制信道的时频资源单元的配置。
  12. 根据权利要求1至7中任一项所述的方法，其特征在于，所述控制区域包括基本集合区域，
    所述基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，所述基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
  13. 根据权利要求1至7中任一项所述的方法，其特征在于，所述指示信息携带在高层信令或系统信息中。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
  15. 一种控制信道的资源配置方法，其特征在于，包括：
    终端设备接收基站发送的指示信息，所述指示信息用于指示控制信道时频资源单元的配置，所述时频资源单元的配置是所述基站从时频资源单元的至少两种配置中确定的；
    所述终端设备根据所述时频资源单元的配置检测所述控制信道，
    其中，所述时频资源单元的至少两种配置包括第一配置和第二配置，
    所述第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于所述第一配置的时频资源单元占用的所述正交频分复用符号上；
    所述第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于所述第二配置的时频资源单元占用的所述至少2个正交频分复用符号中的至少1个正交频分复用符号上。
  16. 根据权利要求15所述的方法，其特征在于，所述控制信道在控制区域中的至少一个时频资源区域传输，
    所述指示信息用于指示所述至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
  17. 根据权利要求15或16所述的方法，其特征在于，所述控制区域在时域上占用至少3个正交频分复用符号，所述时频资源单元的配置包括所述第一配置和/或所述第二配置。
  18. 根据权利要求17所述的方法，其特征在于，所述第二配置的时频资源单元位于所述控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
  19. 根据权利要求17或18所述的方法，其特征在于，在同一时频资源区域中，所述第一配置的时频资源单元与所述第二配置的时频资源单元位于所述控制区域的不同正交频分复用符号上。
  20. 根据权利要求15至19中任一项所述的方法，其特征在于，
    所述第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
    所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
  21. 根据权利要求20所述的方法，其特征在于，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
  22. 根据权利要求15至21中任一项所述的方法，其特征在于，所述时频资源单元的配置与下行控制信息的格式具有对应关系，所述时频资源单元的配置是通过所述下行控制信息的格式指示的；
    所述终端设备接收基站发送的指示信息，包括：
    所述终端设备接收所述基站发送的与所述时频资源单元的配置对应的格式的下行控制信息。
  23. 根据权利要求15至21中任一项所述的方法，其特征在于，所述指示信息携带在指示信道中，所述指示信道在控制区域中的时频资源区域传输。
  24. 根据权利要求23所述的方法，其特征在于，所述时频资源区域内传输的指示信道承载的指示信息用于指示所述时频资源区域内的时频资源单元的配置。
  25. 根据权利要求15至21中任一项所述的方法，其特征在于，所述指示信息携带在下行控制信息中，
    所述控制区域包括基本集合区域和扩展集合区域，所述下行控制信息所在的控制信道在所述基本集合区域传输，所述时频资源单元的配置为所述扩展集合区域传输的控制信道的时频资源单元的配置。
  26. 根据权利要求15至21中任一项所述的方法，其特征在于，所述控制区域包括基本集合区域，
    所述基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，所述基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
  27. 根据权利要求15至21中任一项所述的方法，其特征在于，所述指示信息携带在高层信令或系统信息中。
  28. 根据权利要求15至27中任一项所述的方法，其特征在于，所述控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
  29. 一种基站，其特征在于，包括：
    处理单元，用于从控制信道的时频资源单元的至少两种配置中确定时频资源单元的配置，
    发送单元，用于向所述终端设备发送指示信息，所述指示信息用于指示所述处理单元确定的所述时频资源单元的配置；
    其中，所述时频资源单元的至少两种配置包括第一配置和第二配置，
    所述第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于所述第一配置的时频资源单元占用的所述正交频分复用符号上；
    所述第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于所述第二配置的时频资源单元占用的所述至少2个正交频分复用符号中的至少1个正交频分复用符号上。
  30. 根据权利要求29所述的基站，其特征在于，所述控制信道在控制区域中的至少一个时频资源区域传输，
    所述处理单元具体用于，从所述时频资源单元的至少两种配置中确定所述至少一个时频资源区域中每个时频资源区域内的时频资源单元的配置，
    所述指示信息用于指示所述至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
  31. 根据权利要求29或30所述的基站，其特征在于，所述控制信道的时频资源单元所在的控制区域在时域上占用至少3个正交频分复用符号，所述时频资源单元的配置包括所述第一配置和/或所述第二配置。
  32. 根据权利要求31所述的基站，其特征在于，所述第二配置的时频资源单元位于所述控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
  33. 根据权利要求31或32所述的基站，其特征在于，在同一时频资源区域中，所述第一配置的时频资源单元与所述第二配置的时频资源单元位于所述控制区域的不同正交频分复用符号上。
  34. 根据权利要求29至33中任一项所述的基站，其特征在于，
    所述第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
    所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
  35. 根据权利要求34所述的基站，其特征在于，所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
  36. 根据权利要求29至35中任一项所述的基站，其特征在于，所述时频资源单元的配置与下行控制信息的格式具有对应关系，所述时频资源单元的配置是通过所述下行控制信息的格式指示的；
    所述处理单元还用于，根据所述时频资源单元的配置和所述对应关系确定所述时频资源单元的配置对应的下行控制信息的格式；
    所述发送单元具体用于，向所述终端设备发送所述对应格式的下行控制信息。
  37. 根据权利要求29至36中任一项所述的基站，其特征在于，所述指示信息携带在指示信道中，所述指示信道在控制区域中的时频资源区域传输。
  38. 根据权利要求37所述的基站，其特征在于，所述时频资源区域内传输的指示信道承载的指示信息用于指示所述时频资源区域内的时频资源单元的配置。
  39. 根据权利要求29至36中任一项所述的基站，其特征在于，所述指示信息携带在下行控制信息中，
    所述控制区域包括基本集合区域和扩展集合区域，所述下行控制信息所在的控制信道 在所述基本集合区域传输，所述时频资源单元的配置为所述扩展集合区域传输的控制信道的时频资源单元的配置。
  40. 根据权利要求29至36中任一项所述的基站，其特征在于，所述控制区域包括基本集合区域，
    所述基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，所述基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
  41. 根据权利要求29至36中任一项所述的基站，其特征在于，所述指示信息携带在高层信令或系统信息中。
  42. 根据权利要求29至41中任一项所述的基站，其特征在于，所述控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
  43. 一种终端设备，其特征在于，包括：
    接收单元，用于接收基站发送的指示信息，所述指示信息用于指示控制信道时频资源单元的配置，所述时频资源单元的配置是所述基站从时频资源单元的至少两种配置中确定的；
    检测单元，用于根据所述时频资源单元的配置检测所述控制信道，
    其中，所述时频资源单元的至少两种配置包括第一配置和第二配置，
    所述第一配置的时频资源单元在时域上占用1个正交频分复用符号，参考信号位于所述第一配置的时频资源单元占用的所述正交频分复用符号上；
    所述第二配置的时频资源单元在时域上占用至少2个正交频分复用符号，参考信号位于所述第二配置的时频资源单元占用的所述至少2个正交频分复用符号中的至少1个正交频分复用符号上。
  44. 根据权利要求43所述的终端设备，其特征在于，所述控制信道在控制区域中的至少一个时频资源区域传输，
    所述指示信息用于指示所述至少一个时频资源区域中每个时频资源区域内的时域资源单元的配置。
  45. 根据权利要求43或44所述的终端设备，其特征在于，所述控制区域在时域上占用至少3个正交频分复用符号，所述时频资源单元的配置包括所述第一配置和/或所述第二配置。
  46. 根据权利要求45所述的终端设备，其特征在于，所述第二配置的时频资源单元位于所述控制区域占用的正交频分复用符号中相邻的至少2个正交频分复用符号上。
  47. 根据权利要求45或46所述的终端设备，其特征在于，在同一时频资源区域中，所述第一配置的时频资源单元与所述第二配置的时频资源单元位于所述控制区域的不同正交频分复用符号上。
  48. 根据权利要求43至47中任一项所述的终端设备，其特征在于，
    所述第二配置的时频资源单元占用的正交频分复用符号中的至少2个正交频分符号各自承载的参考信号的数量不同；或者，
    所述第二配置的时频资源单元占用的正交频分复用符号各自承载的参考信号的数量相同。
  49. 根据权利要求48所述的终端设备，其特征在于，所述第二配置的时频资源单元 占用的正交频分复用符号各自承载的参考信号位于相同的频域位置。
  50. 根据权利要求43至49中任一项所述的终端设备，其特征在于，所述时频资源单元的配置与下行控制信息的格式具有对应关系，所述时频资源单元的配置是通过所述下行控制信息的格式指示的；
    所述终端设备接收基站发送的指示信息，包括：
    所述终端设备接收所述基站发送的与所述时频资源单元的配置对应的格式的下行控制信息。
  51. 根据权利要求43至49中任一项所述的终端设备，其特征在于，所述指示信息携带在指示信道中，所述指示信道在控制区域中的时频资源区域传输。
  52. 根据权利要求51所述的终端设备，其特征在于，所述时频资源区域内传输的指示信道承载的指示信息用于指示所述时频资源区域内的时频资源单元的配置。
  53. 根据权利要求43至49中任一项所述的终端设备，其特征在于，所述指示信息携带在下行控制信息中，
    所述控制区域包括基本集合区域和扩展集合区域，所述下行控制信息所在的控制信道在所述基本集合区域传输，所述时频资源单元的配置为所述扩展集合区域传输的控制信道的时频资源单元的配置。
  54. 根据权利要求43至49中任一项所述的终端设备，其特征在于，所述控制区域包括基本集合区域，
    所述基本集合区域内传输的控制信道的时频资源单元的配置是预先配置的，或者，所述基本集合区域内传输的控制信道的时频资源单元的配置是通过广播信道指示的。
  55. 根据权利要求43至49中任一项所述的终端设备，其特征在于，所述指示信息携带在高层信令或系统信息中。
  56. 根据权利要求43至55中任一项所述的终端设备，其特征在于，所述控制信道的时频资源单元所在的控制区域在时域上占用至少两个正交频分复用符号。
  57. 一种装置,包括处理器以及存储器，所述存储器存储计算机指令，所述处理器执行所述存储器存储的计算机指令，以使得该装置实现权利要求1-28任一项所述的方法。
  58. 一种计算机存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现权利要求1-28任一项所述的方法。
  59. 一种计算机程序，当其在计算机上运行时，使得计算机执行如权利要求1-28任一项所述的方法。
PCT/CN2017/108851 2016-11-03 2017-11-01 控制信道的资源配置方法、基站和终端设备 WO2018082551A1 (zh)

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