WO2018132983A1 - 传输下行控制信息的方法、终端设备和网络设备 - Google Patents

传输下行控制信息的方法、终端设备和网络设备 Download PDF

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Publication number
WO2018132983A1
WO2018132983A1 PCT/CN2017/071592 CN2017071592W WO2018132983A1 WO 2018132983 A1 WO2018132983 A1 WO 2018132983A1 CN 2017071592 W CN2017071592 W CN 2017071592W WO 2018132983 A1 WO2018132983 A1 WO 2018132983A1
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Prior art keywords
control information
terminal device
resource set
resource
target
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Application number
PCT/CN2017/071592
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English (en)
French (fr)
Inventor
唐海
许华
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201780083726.8A priority Critical patent/CN110178429B/zh
Priority to RU2019125689A priority patent/RU2721359C1/ru
Priority to PCT/CN2017/071592 priority patent/WO2018132983A1/zh
Priority to AU2017394800A priority patent/AU2017394800A1/en
Priority to EP17892894.1A priority patent/EP3565342B1/en
Priority to BR112019014747-0A priority patent/BR112019014747A2/pt
Priority to CA3050339A priority patent/CA3050339C/en
Priority to US16/477,137 priority patent/US11044714B2/en
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to MX2019008490A priority patent/MX2019008490A/es
Priority to SG11201906615SA priority patent/SG11201906615SA/en
Priority to TW107101442A priority patent/TWI759406B/zh
Publication of WO2018132983A1 publication Critical patent/WO2018132983A1/zh
Priority to ZA2019/05412A priority patent/ZA201905412B/en
Priority to US17/322,640 priority patent/US11665697B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0083—Multi-mode cell search, i.e. where several modes or systems can be used, e.g. backwards compatible, dual mode or flexible systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0086—Search parameters, e.g. search strategy, accumulation length, range of search, thresholds
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Definitions

  • the embodiments of the present application relate to the field of wireless communications, and more specifically, to a method, a terminal device, and a network device for transmitting downlink control information.
  • a terminal In a Long Term Evolution (LTE) system, a terminal needs to detect a Physical Control Format Indicator Channel (“PCIFCH”) in a control channel resource, and determine a transmission according to the information therein.
  • PCIFCH Physical Control Format Indicator Channel
  • OFDM Orthogonal Frequency Division Multiplexing
  • PDCCH Physical Downlink Control Channel
  • the search space of the PDCCH is divided into a common search space and a terminal-specific search space. The former is used to transmit some common downlink control information (Downlink Control Information (DCI), and the latter is used to transmit the terminal-specific DCI.
  • DCI Downlink Control Information
  • the public DCI is a DCI that broadcasts to all the terminals in the cell, and carries some common information of the cell, such as paging, random access response, Broadcast Control Channel (BCCH), etc.
  • the Radio Network Tempory Identity (“RNTI") performs DCI's Cyclic Redundancy Check (CRC) check code scrambling, and generally carries little information.
  • the terminal-specific DCI is a DCI that is sent to a certain terminal, and is used for scheduling data transmission of the terminal or reporting of channel state information (CSI), and can adopt a larger DCI. Since the CRC of the DCI is scrambled by the terminal-specific RNTI, one terminal cannot detect the exclusive DCI of the other terminal.
  • information in the control channel can be improved by beamforming transmission.
  • the network side device can send the control channel through multiple beams, and the different beams are aligned in different directions, so that the terminals at different positions can detect the control channel from the beam with the strongest received power (ie, the beam that is aligned with itself).
  • Information such as PCIFCH, public DCI, and terminal-specific DCI can be transmitted through multiple beams, and control information transmitted by different beams is generally transmitted on different control channel resources, and the terminal needs to detect on multiple control channel resources.
  • PCIFCH and public DCI carry little information and require less control channel resources.
  • Terminal blind detection is less complex.
  • the dedicated DCI carries a lot of information and requires more control channel resources. The blind detection complexity is high. If the terminal performs blind detection in multiple control channel resources, the detection complexity of the terminal is obviously increased.
  • the embodiment of the present application provides a method for transmitting downlink control information, a terminal device, and a network device, which can reduce the blind detection complexity of the control information by the terminal device.
  • the first aspect provides a method for transmitting downlink control information, where the method includes: determining, by the terminal device, a plurality of candidate resource sets for transmitting the first control information; and the terminal device in the multiple candidate resource sets And detecting, by the network device, the first control information, where the terminal device determines, according to the detection result of the first control information, a target resource set in the multiple candidate resource sets; the terminal device according to the target resource Determining, by the first mapping relationship, a target control channel resource corresponding to the target resource set, where the first mapping relationship is used to indicate a correspondence between the multiple candidate resource sets and multiple control channel resources; The terminal device detects, in the target control channel resource, second control information sent by the network device.
  • the terminal device when receiving the two control information that the network device sends through the same beam, the terminal device receives the second control information on the control channel resource corresponding to the resource set for receiving the first control information, so that the terminal device is receiving
  • the second control information does not need to perform a large number of blind detections on multiple control channel resources, thereby reducing the blind detection complexity of the second control information by the terminal device.
  • the corresponding relationship between the multiple candidate resource sets and the multiple control channel resources in the first mapping relationship may be determined by the network device and sent to the terminal device, or may be agreed in advance between the terminal device and the network device. For example, as specified in the agreement.
  • the corresponding relationship between the multiple candidate resource sets and the multiple control channel resources may be presented by, for example, a table, a formula, an image, or the like, and in the corresponding relationship, multiple candidate resource sets and multiple control channel resources are used.
  • the interval may be a one-to-one correspondence; one candidate resource set may also correspond to multiple control channel resources; or one control channel resource may also correspond to multiple candidate resource sets.
  • the terminal device may determine a control channel resource corresponding to the target resource set by searching a preset table including a correspondence between multiple candidate resource sets and multiple control channel resources, where the table includes multiple The information of the candidate resource set and the information of the control channel resource; or the terminal device may calculate the location of the control channel resource corresponding to the target resource set by using a preset formula for representing the location relationship and related parameter information of the target resource set. And size and other information. This application does not limit this set.
  • a beam for transmitting the second control information on the target control channel resource, and the target resource set is used to send the first control information
  • the beams are the same.
  • the network device may send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource sets, and different beams are aligned in different directions, thereby making different positions.
  • the terminal devices can receive the first control information with a strong received power on the aligned beam, that is, in a plurality of candidate resource sets, different candidate resource sets are used to transmit the different shaped beams.
  • a control message The terminal device needs to detect the first control information on each candidate resource in the multiple candidate resource sets.
  • the format and content of the first control information for example, the DCI format used by the first control information is known by the terminal device, and the terminal device needs to separately perform blind detection in the multiple candidate resource sets.
  • the terminal device may separately detect the first control information transmitted in each candidate resource set in each candidate resource set, or jointly detect the first control information in multiple candidate resource sets.
  • the terminal device determines, according to the detection result of the first control information, a target resource set in the multiple candidate resource sets, where: the terminal device is Determining the target resource set by determining at least one resource set of the first control information in the plurality of candidate resource sets.
  • the terminal device determines the target resource set in the at least one resource set of the plurality of candidate resource sets that can detect the first control information
  • the method includes: the terminal device determining the at least one resource set as the target resource set.
  • the terminal device determines the target resource set in the at least one resource set of the plurality of candidate resource sets that can detect the first control information
  • the method includes: the terminal device determining the target resource set in the at least one resource set according to a signal receiving quality of the first control information.
  • the terminal device determines the target resource set in the at least one resource set according to a signal receiving quality of the first control information, including: the terminal The device determines, in the at least one resource set, a resource set corresponding to the first control information with the highest signal receiving quality, which is the target resource set; or the terminal device is in the And at least one resource set, the resource set corresponding to the first control information that determines that the signal receiving quality is greater than or equal to the preset threshold is the target resource set.
  • the terminal device if the signal receiving quality of the first control information transmitted on the target resource set in the plurality of candidate resource sets is superior, the first transmission channel resource corresponding to the target resource set is transmitted.
  • the second control information is also transmitted by using the beam, and the second control information received by the terminal device on the target control channel resource may also have superior signal reception quality.
  • the terminal device only needs to detect the second control information on the target control channel resource, thereby reducing system overhead.
  • the first control information is control information that is transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • the first control information indicates a time domain resource size used to transmit control information in a current time domain resource unit, or the first control information indicates a current time domain.
  • the second control information is control information that is transmitted through a DCI in a common search space or a DCI in a dedicated search space of the terminal device.
  • the DCI in the common search space may be a public DCI, or may be a group DCI sent to a group of terminal devices, or may be a dedicated DCI carrying some terminal devices with less information.
  • the first control information is control information transmitted through the PCIFCH
  • the second control information may be control information transmitted through DCI in a common search space or DCI in a dedicated search space of the terminal device. If the first control information may be control information transmitted through DCI in the common search space, the second control information may be control information transmitted through DCI in a dedicated search space of the terminal device.
  • the first control information may be scrambled by the RNTI of a plurality of terminal devices during transmission. If the first control information is carried in the DCI that is specific to the terminal device, the first control information may be scrambled by the CRC of the DCI of the terminal device, and the other terminal device cannot detect the terminal.
  • the exclusive DCI of the device may be carried in the public DCI.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • a physical resource set can be multiple physical resource blocks (Physical Resource Block, Jane A set of frequency domain resources composed of "PRB”, and different resource sets occupy different frequency domain resources.
  • the first control information or the demodulation reference signal (Demodulation Reference Sgnal, hereinafter referred to as “DMRS”) of the first control information may be transmitted through a sequence set, and the different sequence resource sets include different sequences.
  • the control channel resource set may be a Control Channel Element (CCE) set, and different control channel resource sets include different CCEs.
  • CCE Control Channel Element
  • the different candidate resource sets in the multiple candidate resource sets occupy different frequency domain resources and/or different orthogonal frequency division multiplexing OFDM symbols.
  • a second aspect provides a method for transmitting an SRS, where the network device includes: determining, by the network device, a plurality of candidate resource sets for transmitting the first control information; The device sends the first control information, where a beam for sending the first control information on each candidate resource set is used for sending the first control with other candidate resource sets in the multiple candidate resource sets.
  • the beams of the information are different; the network device determines a plurality of control channel resources corresponding to the plurality of candidate resource sets; and the network device sends the first to the terminal devices on the plurality of control channel resources And second control information, wherein a beam for transmitting the second control information on each control channel resource is the same as a beam for transmitting the first control information on a candidate resource set corresponding to each control channel .
  • the network device sends the first control information and the second control information to the terminal device by using the same beam on the corresponding candidate resource set and the control channel resource, so that the terminal device sends the two network devices through the same beam.
  • the second control information can be received on the control channel resource corresponding to the resource set for receiving the first control information, so that the terminal device does not need to perform a large amount on the multiple control channel resources when receiving the second control information.
  • Blind detection reduces the complexity of blind detection of the second control information.
  • the network device may send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource sets, and different beams are aligned in different directions, thereby
  • the terminal devices in different locations can receive the first control information with a strong received power on the aligned beam, that is, in a plurality of candidate resource sets, different candidate resource sets are used for transmission and different beams are used for shaping.
  • the first control information may be used to send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource sets, and different beams are aligned in different directions, thereby
  • the terminal devices in different locations can receive the first control information with a strong received power on the aligned beam, that is, in a plurality of candidate resource sets, different candidate resource sets are used for transmission and different beams are used for shaping.
  • the first control information may be used to send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource
  • the first control information is control information that is transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • the first control information indicates a time domain resource size used for transmitting control information in a current time domain resource unit, or the first control information indicates a current time domain.
  • the second control information is control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the DCI in the common search space may be a public DCI, or may be a group DCI sent to a group of terminal devices, or may be a dedicated DCI carrying some terminal devices with less information.
  • the first control information is control information transmitted through the PCIFCH
  • the second control information may be control information transmitted through DCI in a common search space or DCI in a dedicated search space of the terminal device. If the first control information may be control information transmitted through DCI in the common search space, the second control information may be control information transmitted through DCI in a dedicated search space of the terminal device.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • the different candidate resource sets in the multiple candidate resource sets occupy different frequency domain resources and/or different orthogonal frequency division multiplexing OFDM symbols.
  • the second control information is passed The exclusive control information of the terminal device carried in the dedicated DCI transmitted by the exclusive search space of the terminal device.
  • the terminal device detects the first control information in the plurality of candidate resource sets for transmitting the first control information, if the target device set that is determined by the terminal device according to the detection result of the first control information is fed back to the network device, Then, according to the feedback of the terminal device, the network device can know the target resource set used when transmitting the first control signal with better received signal quality to the terminal device, so that the same is used only on the control channel resource corresponding to the target resource set.
  • the beam transmits second control information to the terminal device, which reduces system overhead.
  • a terminal device which can perform the operations of the terminal device in the above first aspect or any optional implementation manner of the first aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.
  • a network device which can perform the second aspect or The operation of the network device in any optional implementation of the second aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal provided by the third aspect device.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the network device to implement the network provided by the fourth aspect device.
  • a computer readable storage medium storing a program causing a network device to perform the first aspect described above, and any one of the various implementations of the transmission downlink The method of controlling information.
  • a computer readable storage medium storing a program causing a network device to perform the second aspect described above, and any one of the various implementations of the transmission downlink The method of controlling information.
  • a system chip includes an input interface, an output interface, a processor, and a memory, where the weapon is used to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement Any of the foregoing first aspects and various implementations thereof.
  • a system chip includes an input interface, an output interface, a processor, and a memory, where the edge device is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement Any of the foregoing second aspects and various implementations thereof.
  • the network device sends the first control information and the second control information to the terminal device by using the same beam on the corresponding candidate resource set and the control channel resource, so that the terminal device passes the receiving network device.
  • Receiving the second control on the control channel resource corresponding to the resource set for receiving the first control information when the two pieces of control information are sent by the same beam The information is such that the terminal device does not need to perform a large number of blind detections on the plurality of control channel resources when receiving the second control information, thereby reducing the blind detection complexity of the second control information by the terminal device.
  • FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for transmitting downlink control information according to an embodiment of the present application.
  • FIG. 3(a) is a schematic diagram of a first mapping relationship in the embodiment of the present application.
  • FIG. 3(b) is a schematic diagram of a first mapping relationship in the embodiment of the present application.
  • FIG. 3(c) is a schematic diagram of a first mapping relationship in the embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for transmitting downlink control information according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • a terminal device may also be referred to as a User Equipment ("UE"), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device.
  • UE User Equipment
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SIP”) phone, or a wireless local loop (Wireless Local) Loop, referred to as "WLL” station, Personal Digital Assistant (“PDA”), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, Terminal devices in future 5G networks or terminal devices in future evolved PLMN networks.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the present application describes various embodiments in connection with a network device.
  • the network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, abbreviated as "BTS") in the GSM system or CDMA, or may be a base station (NodeB, referred to as "NB” in the WCDMA system. ”), may also be an evolved base station (Evolutional Node B, “eNB” or “eNodeB”) in the LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future 5G network.
  • a network side device in a network side device or a network side device in a future evolved PLMN network.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a network device 10 and a terminal device 20.
  • the network device 10 is configured to provide communication services for the terminal device 20 and access the core network.
  • the terminal device 20 can access the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 10, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 20 and the network device 10.
  • the network in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or a Machine to Machine (Machine to Machine). /Man, referred to as "M2M” network or other network
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • M2M Machine to Machine
  • FIG. 1 is only a simplified schematic diagram of the example, and the network may also include other terminal devices, which are not shown in FIG.
  • FIG. 2 is a schematic flowchart of a method 200 for transmitting downlink control information according to an embodiment of the present application.
  • the method 200 can be performed by a terminal device.
  • the specific process of transmitting data includes:
  • the terminal device determines a plurality of candidate resource sets for transmitting the first control information.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • the terminal device may determine a plurality of candidate physical resource sets for transmitting the first control information, or a plurality of candidate sequence resource sets for transmitting the first control information, or for transmitting the first control information. Multiple candidate control channel resource sets.
  • a physical resource set can be multiple physical resource blocks (Physical Resource Block, Jane A set of frequency domain resources composed of "PRB”, and different resource sets occupy different frequency domain resources.
  • the first control information or the demodulation reference signal (Demodulation Reference Sgnal, hereinafter referred to as “DMRS”) of the first control information may be transmitted through a sequence set, and the different sequence resource sets include different sequences.
  • the control channel resource set may be a Control Channel Element (CCE) set, and different control channel resource sets include different CCEs.
  • CCE Control Channel Element
  • the plurality of candidate resource sets may occupy multiple frequency domain resources and/or multiple orthogonal frequency division multiplexing OFDM symbols.
  • the plurality of candidate resource sets may be a plurality of resource sets located on the same symbol and occupying different frequency bands, or the multiple candidate resource sets may be multiple resource sets occupying different frequency bands and located on the same symbol, or The time-frequency resources occupied by the multiple candidate resource sets are different.
  • the first control information may be control information transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • PCIFCH physical control information format indication channel
  • DCI downlink control information
  • the second control information may be control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the DCI in the common search space may be a public DCI, or may be a group DCI sent to a group of terminal devices, or may be a dedicated DCI carrying some terminal devices with less information.
  • the first control information is control information transmitted through the PCIFCH
  • the second control information may be control information transmitted through DCI in a common search space or DCI in a dedicated search space of the terminal device. If the first control information is control information transmitted through the DCI in the common search space, the second control information may be control information transmitted through the DCI in the exclusive search space of the terminal device.
  • the first control information may be scrambled by the RNTI of a plurality of terminal devices during transmission. If the first control information is carried in the DCI that is specific to the terminal device, the first control information may be scrambled by the CRC of the DCI of the terminal device, and the other terminal device cannot detect the terminal.
  • the exclusive DCI of the device may be carried in the public DCI.
  • the first control information indicates a time domain resource size used for transmitting control information in the current time domain resource unit, or the first control information indicates a time in the current time domain resource unit for transmitting the second control information.
  • the size of the domain resource is not limited to a time domain resource size used for transmitting control information in the current time domain resource unit, or the first control information indicates a time in the current time domain resource unit for transmitting the second control information.
  • the first control information may be used to indicate a current time domain resource unit such as a subframe or a time slot.
  • the time domain resource size used for transmitting control information such as the number of OFDM symbols N. Since the transmission of the control information is usually before the data is transmitted, the terminal device can determine, according to the number N of the OFDM symbols indicated by the first control information, that the control information is detected on the target N channel symbols, for example, the first N symbols of a time slot.
  • the control information may include the first control information, the second control information, and other control information.
  • the first control information may be used to indicate a time domain resource size in the current time domain resource unit, such as a subframe or a time slot, for transmitting the second control information.
  • the terminal device detects the first control information sent by the network device in a plurality of candidate resource sets.
  • the network device may send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource sets, and different beams are aligned in different directions, thereby making different positions.
  • the terminal devices can receive the first control information with a strong received power on the aligned beam, that is, in a plurality of candidate resource sets, different candidate resource sets are used to transmit the different shaped beams.
  • a control message The terminal device needs to detect the first control information on each candidate resource in the multiple candidate resource sets.
  • the format and content of the first control information for example, the DCI format used by the first control information is known by the terminal device, and the terminal device needs to separately perform blind detection in the multiple candidate resource sets.
  • the terminal device may separately detect the first control information transmitted in each candidate resource set in each candidate resource set, or jointly detect the first control information in multiple candidate resource sets.
  • the terminal device determines the target resource set in the plurality of candidate resource sets according to the detection result of the first control information.
  • the terminal device may determine the target resource set in the plurality of candidate resource sets according to the detection result of the first control in the plurality of candidate resource sets.
  • the terminal device determines the target resource set in the at least one resource set of the plurality of candidate resource sets that can detect the first control information.
  • the terminal device may randomly select one or several resource sets as the target resource set in at least one resource set capable of detecting the first control information.
  • the terminal device can determine the target resource set in the following two ways.
  • the terminal device determines the target resource set in the at least one resource set of the plurality of candidate resource sets that can detect the first control information, where the terminal device includes the at least one resource
  • the source set is determined to be the target resource set. That is to say, the terminal device can use all the resource sets in the at least one resource set as the target resource set.
  • the terminal device may determine the target resource set, that is, mode 2, according to the signal reception quality of the first control information, from at least one candidate resource set in which the first control information is detected.
  • the terminal device determines the target resource set in the at least one resource set of the plurality of candidate resource sets that can detect the first control information, and includes: receiving, by the terminal device, a signal receiving quality according to the first control information, The at least one resource set determines the target resource set.
  • the terminal device may determine, in the at least one resource set, a resource set corresponding to the first control information with the highest signal receiving quality as the target resource set; or the terminal device may determine the signal receiving quality in the at least one resource set.
  • the resource set corresponding to the first control information that is greater than or equal to the preset threshold is the target resource set.
  • the second control information transmitted on the target control channel resource corresponding to the target resource set is The beam is also used for transmission, and the second control information received by the terminal device on the target control channel resource may also have superior signal reception quality.
  • the terminal device only needs to detect the second control information on the target control channel resource, which reduces the blind detection complexity of the terminal device.
  • the terminal device determines, according to the target resource set and the first mapping relationship, a target control channel resource corresponding to the target resource set.
  • the first mapping relationship is used to indicate a correspondence between the multiple candidate resource sets and multiple control channel resources.
  • the correspondence between the multiple candidate resource sets and the multiple control channel resources may be determined by the network device and sent to the terminal device, or may be a prior agreement between the terminal device and the network device. Prescribed in the.
  • the corresponding relationship between the multiple candidate resource sets and the multiple control channel resources may be presented by, for example, a table, a formula, an image, or the like, and in the corresponding relationship, multiple candidate resource sets and multiple control channel resources are used.
  • the interval may be a one-to-one correspondence; one candidate resource set may also correspond to multiple control channel resources; or one control channel resource may also correspond to multiple candidate resource sets. That is, The terminal device may determine a control channel resource corresponding to the target resource set by searching a preset table including a correspondence between a plurality of candidate resource sets and a plurality of control channel resources, where the table includes multiple candidate resource sets. Information about the information and the control channel resource; or the terminal device may calculate the location and size of the control channel resource corresponding to the target resource set by using a preset formula representing the location relationship and related parameter information of the target resource set. . This application does not limit this.
  • FIG. 3(a) shows four candidate resource sets, which are in one-to-one correspondence with four different control channel resources, and corresponding to each candidate resource set and control information transmitted on the control channel resource.
  • the beams are the same.
  • the plurality of candidate resource sets occupy the same frequency domain resource and are located on different symbols in the current time domain resource unit, such as a subframe or a time slot.
  • Each candidate resource set corresponds to one control channel resource, and different control channel resources occupy the same frequency. Domain resources are located on different symbols.
  • FIG. 3(b) shows four candidate resource sets, one for which four candidate resource sets correspond to four different control channel resources, and the corresponding candidate resource set and the control information transmitted on the control channel resource are used.
  • the beams are the same.
  • FIG. 3(c) shows four candidate resource sets, one for which four candidate resource sets correspond to four different control channel resources, and the corresponding candidate resource set and the control information transmitted on the control channel resource.
  • the beams are the same.
  • the beam used for the first control information for transmission on the candidate resource set 1 and the second control information for transmission on the control channel resource 1 are The same beam such as beam 1; the beam used by the first control information for transmission on the candidate resource set 2, and the beam used for the second control information used for transmission on the control channel resource are the same beam such as beam 2;
  • the beams used for the second control information for transmission on the channel resources are the same beam, such as beam 3; the beam used for the first control information for transmission on the candidate resource set 4, and the control channel resources are used for 4
  • the beams used for transmitting the second control information are the same beam, such as beam 4, and beam 1, beam 2, beam 3, and beam 4 are different four beams used by the network device to transmit control information.
  • the terminal device detects, in the target control channel resource, second control information sent by the network device.
  • the terminal device detects, in the target control channel resource corresponding to the target resource set, second control information that is sent by the network device, where the target control channel resource is used.
  • the beam for transmitting the second control information is the same as the beam for transmitting the first control information on the target resource set.
  • the second control information may be public control information carried in a public DCI transmitted through a common search space, or exclusive transmission through a dedicated search space of the terminal device.
  • the network device may use the same beam pair first control information and the second Control information is shaped.
  • the first control information transmitted in the target resource is transmitted using the same beam as the second control information transmitted in the corresponding target control channel resource.
  • the terminal device if the signal receiving quality of the first control information transmitted on the target resource set of the plurality of candidate resource sets is optimal, the second control information transmitted on the target control channel resource corresponding to the target resource set is The beam is also used for transmission, and the second control information received by the terminal device on the target control channel resource also has superior signal reception quality. The terminal device only needs to detect the second control information on the target control channel resource.
  • the terminal device when receiving the two control information that the network device sends through the same beam, the terminal device receives the second control information by using the control channel resource corresponding to the resource set for receiving the first control information.
  • the terminal device does not need to perform a large number of blind detections on multiple control channel resources when receiving the second control information, thereby reducing the blind detection complexity of the second control information by the terminal device.
  • FIG. 4 is a schematic flowchart of a method 400 for transmitting downlink control information according to an embodiment of the present application.
  • the method 400 can be performed by a network device.
  • the specific process for transmitting downlink control information includes:
  • the network device determines a plurality of candidate resource sets for transmitting the first control information.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • the terminal device may determine a plurality of candidate physical resource sets for transmitting the first control information, or a plurality of candidate sequence resource sets for transmitting the first control information, or for transmitting the first control information. Multiple candidate control channel resource sets.
  • the physical resource set may be a set of frequency domain resources composed of multiple physical resource blocks ("PRBs"), and different resource sets occupy different frequency domain resources.
  • the first control information or the demodulation reference signal (Demodulation Reference Sgnal, hereinafter referred to as “DMRS”) of the first control information may be transmitted through a sequence set, and the different sequence resource sets include different sequences.
  • the control channel resource set may be a Control Channel Element (CCE) set, and different control channel resource sets include different CCEs.
  • CCE Control Channel Element
  • the plurality of candidate resource sets may occupy multiple frequency domain resources and/or multiple orthogonal frequency division multiplexing OFDM symbols.
  • the plurality of candidate resource sets may be a plurality of resource sets located on the same symbol and occupying different frequency bands, or the multiple candidate resource sets may be multiple resource sets occupying different frequency bands and located on the same symbol, or The time-frequency resources occupied by the multiple candidate resource sets are different.
  • the first control information may be control information transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • PCIFCH physical control information format indication channel
  • DCI downlink control information
  • the second control information may be control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the DCI in the common search space may be a public DCI, or may be a group DCI sent to a group of terminal devices, or may be a dedicated DCI carrying some terminal devices with less information.
  • the first control information is control information transmitted by the network device through the PCIFCH
  • the second control information may be control information transmitted by the network device through the DCI in the common search space or the DCI in the dedicated search space of the terminal device.
  • the first control information may be control information transmitted by the network device through the DCI in the common search space
  • the second control information may be a network device through the terminal Control information for DCI transmission in the device's proprietary search space.
  • the first control information may be scrambled by the RNTI of a plurality of terminal devices during transmission. If the first control information is carried in the DCI that is specific to the terminal device, the first control information may be scrambled by the CRC of the DCI of the terminal device, and the other terminal device cannot detect the terminal.
  • the exclusive DCI of the device may be carried in the public DCI.
  • the first control information indicates a time domain resource size used for transmitting control information in the current time domain resource unit, or the first control information indicates a time in the current time domain resource unit for transmitting the second control information.
  • the size of the domain resource is not limited to a time domain resource size used for transmitting control information in the current time domain resource unit, or the first control information indicates a time in the current time domain resource unit for transmitting the second control information.
  • the first control information may be used to indicate a time domain resource size, such as an OFDM symbol number N, for transmitting control information in a current time domain resource unit, such as a subframe or a time slot. Since the transmission of the control information is usually before the data is transmitted, the terminal device can determine, according to the number N of the OFDM symbols indicated by the first control information, that the control information is detected on the target N channel symbols, for example, the first N symbols of a time slot.
  • the control information may include the first control information, the second control information, and other control information.
  • the first control information may be used to indicate a time domain resource size in the current time domain resource unit, such as a subframe or a time slot, for transmitting the second control information.
  • the network device sends the first control information to the terminal device in the multiple candidate resource sets.
  • the beam for transmitting the first control information on each candidate resource set is different from the beam used for sending the first control information on the other candidate resource sets in the multiple candidate resource sets.
  • the network device may send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource sets, and different beams are aligned in different directions, thereby
  • the terminal devices in different locations can receive the first control information with a strong received power on the aligned beam, that is, in a plurality of candidate resource sets, different candidate resource sets are used for transmission and different beams are used for shaping.
  • the first control information may be used to send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource sets, and different beams are aligned in different directions, thereby
  • the terminal devices in different locations can receive the first control information with a strong received power on the aligned beam, that is, in a plurality of candidate resource sets, different candidate resource sets are used for transmission and different beams are used for shaping.
  • the first control information may be used to send the first control information by using multiple beams, and the first control information sent by using different beams is transmitted on different candidate resource
  • the network device determines a plurality of control channel resources corresponding to the plurality of candidate resource sets.
  • the first mapping relationship is satisfied between the plurality of candidate resource sets and the plurality of control channel resources.
  • the correspondence between the multiple candidate resource sets and the multiple control channel resources may be determined by the network device and sent to the terminal device, or may be a prior agreement between the terminal device and the network device. Prescribed in the.
  • the first mapping relationship may be, for example, as shown in FIG. 3(a), FIG. 3(b), and FIG. 3(c).
  • the body can refer to the description in the foregoing 240, and for brevity, it will not be described again here.
  • the network device sends second control information to the terminal device on the plurality of control channel resources.
  • the beam for transmitting the second control information on each control channel resource is the same as the beam used for transmitting the first control information on the candidate resource set corresponding to each control channel.
  • the network device sends the second control information to the terminal device on the multiple control channel resources
  • the beams used for the first control information transmitted on the set are the same beam. Therefore, for the terminal device, if the signal reception quality of the first control information transmitted on the target resource set is optimal in the plurality of candidate resource sets, the second transmission is performed on the target control channel resource corresponding to the target resource set.
  • the control information is also transmitted by using the beam, and the second control information received by the terminal device on the target control channel resource also has a superior signal receiving quality, and the terminal device only needs to detect the second on the target control channel resource. Control information is sufficient, avoiding a large number of blind checks on multiple control channel resources.
  • the second control information may be public control information carried in a public DCI transmitted through a common search space, or in a dedicated DCI transmitted through a dedicated search space of the terminal device.
  • the exclusive control information of the carried terminal device, and the first control information may carry information about a time domain resource size for transmitting the second control information. If the first control information passes the common control information carried in the public DCI transmitted by the common search space, the second control information may be the exclusive control information of the terminal device carried in the dedicated DCI transmitted through the dedicated search space of the terminal device.
  • the first control information is control information transmitted through the PCIFCH, or control information transmitted through the downlink control information DCI in the common search space, such as a public DCI
  • the second control information is passed.
  • the exclusive control information of the terminal device carried in the dedicated DCI transmitted by the exclusive search space of the terminal device.
  • the network device can learn, according to the feedback of the terminal device, the target resource set for transmitting the first control signal that is superior to the receiving device, so that the same control channel resource is used only on the control channel resource corresponding to the target resource set.
  • the beam sends the second control information to the terminal device, which reduces system overhead.
  • the network device uses the same beam in the corresponding candidate resource set and control. Transmitting the first control information and the second control information to the terminal device, respectively, so that the terminal device can receive the resource set for receiving the first control information when receiving the two control information sent by the network device by using the same beam
  • the second control information is received on the corresponding control channel resource, so that the terminal device does not need to perform a large number of blind detections on the multiple control channel resources when receiving the second control information, thereby reducing the blind detection complexity of the second control information.
  • FIG. 5 is a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 500 includes a determining unit 510 and a detecting unit 520. among them,
  • the determining unit 510 is configured to: determine a plurality of candidate resource sets for transmitting the first control information
  • the detecting unit 520 is configured to: detect, in the multiple candidate resource sets, the first control information that is sent by the network device;
  • the determining unit 510 is further configured to: determine, according to the detection result of the first control information, a target resource set in the plurality of candidate resource sets;
  • the determining unit 510 is further configured to: determine, according to the target resource set and the first mapping relationship, target control channel resources corresponding to the target resource set, where the first mapping relationship is used to represent the multiple candidate resource sets Correspondence relationship with multiple control channel resources;
  • the detecting unit 520 is further configured to: in the target control channel resource, detect second control information sent by the network device.
  • the terminal device when receiving the two control information that the network device sends through the same beam, the terminal device receives the second control information on the control channel resource corresponding to the resource set for receiving the first control information, so that the terminal device is receiving
  • the second control information does not need to perform a large number of blind detections on multiple control channel resources, thereby reducing the blind detection complexity of the second control information by the terminal device.
  • the beam used to transmit the second control information on the target control channel resource is the same as the beam used to send the first control information on the target resource set.
  • the determining unit 510 is specifically configured to determine, as the target resource set, a resource set that is capable of detecting the first control information in the multiple candidate resource sets.
  • the determining unit 510 is specifically configured to: determine, in the multiple candidate resource sets, at least one resource set capable of detecting the first control information; according to the first part of the at least one resource set Controlling signal reception quality of the information, determining the target resource set in the at least one resource set.
  • the determining unit 510 is specifically configured to: determine, in the at least one resource set, a resource set corresponding to the first control information with the highest signal receiving quality, where the target resource is Or a set of resources corresponding to the first control information that determines that the signal receiving quality is greater than a preset threshold, in the at least one resource set, is the target resource set.
  • the first control information is control information transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • PCIFCH physical control information format indication channel
  • DCI downlink control information
  • the first control information indicates a time domain resource size used to transmit control information in the current time domain resource unit, or the first control information indicates that the second time control is used in the current time domain resource unit The time domain resource size of the information.
  • the second control information is control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • different candidate resource sets in the multiple candidate resource sets occupy different frequency domain resources and/or different orthogonal frequency division multiplexing OFDM symbols.
  • terminal device 500 may correspond to the terminal device in the method embodiment, and the corresponding functions of the terminal device may be implemented. For brevity, details are not described herein again.
  • FIG. 6 is a schematic block diagram of a network device 600 in accordance with an embodiment of the present application. As shown in FIG. 6, the network device 600 includes a determining unit 610 and a transmitting unit 620. among them,
  • the determining unit 610 is configured to: determine a plurality of candidate resource sets for transmitting the first control information
  • the sending unit 620 is configured to: send the first control information to the terminal device in the multiple candidate resource sets, where the beam for transmitting the first control information on each candidate resource set, and the multiple The beams used to transmit the first control information on the other candidate resource sets in the candidate resource set are different;
  • the determining unit 610 is further configured to: determine a plurality of control channel resources corresponding to the multiple candidate resource sets;
  • the sending unit 620 is further configured to: send, on the multiple control channel resources, second control information to the terminal device, where a beam for sending the second control information is used on each control channel resource, and The beams for transmitting the first control information are the same on the candidate resource set corresponding to each control channel.
  • the network device sends the first control information and the second control information to the terminal device by using the same beam on the corresponding candidate resource set and the control channel resource, so that the terminal device sends the two network devices through the same beam.
  • it can be used to receive the first control
  • the second control information is received on the control channel resource corresponding to the resource set of the information, so that the terminal device does not need to perform a large number of blind detection on the multiple control channel resources when receiving the second control information, and reduces the second control information.
  • Blind check complexity is a large number of blind detection on the multiple control channel resources when receiving the second control information, and reduces the second control information.
  • the first control information is control information transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • PCIFCH physical control information format indication channel
  • DCI downlink control information
  • the first control information indicates a time domain resource size used to transmit control information in the current time domain resource unit, or the first control information indicates that the second time control is used in the current time domain resource unit The time domain resource size of the information.
  • the second control information is control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • different candidate resource sets in the multiple candidate resource sets occupy different frequency domain resources and/or different orthogonal frequency division multiplexing OFDM symbols.
  • FIG. 7 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application.
  • the terminal device includes a processor 710, a transceiver 720, and a memory 730, wherein the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path.
  • the memory 730 is configured to store instructions for executing the instructions stored by the memory 730 to control the transceiver 720 to receive signals or transmit signals.
  • the processor 710 is configured to: determine a plurality of candidate resource sets for transmitting the first control information
  • the transceiver 720 is configured to: detect, in the multiple candidate resource sets, the first control information sent by the network device;
  • the processor 710 is further configured to: determine, according to the detection result of the first control information, a target resource set in the plurality of candidate resource sets;
  • the processor 710 is further configured to: determine, according to the target resource set and the first mapping relationship, target control channel resources corresponding to the target resource set, where the first mapping relationship is used to represent the multiple candidate resource sets Correspondence relationship with multiple control channel resources;
  • the transceiver 720 is further configured to: detect, in the target control channel resource, second control information that is sent by the network device.
  • the network device sends the first control information and the second control information to the terminal device by using the same beam on the corresponding candidate resource set and the control channel resource, so that the terminal device is connected.
  • the beam used to transmit the second control information on the target control channel resource is the same as the beam used to send the first control information on the target resource set.
  • the processor 710 is specifically configured to: determine, in the multiple candidate resource sets, at least one resource set of the first control information, and determine the target resource set.
  • the processor 710 is specifically configured to: determine the at least one resource set as the target resource set
  • the processor 710 is specifically configured to determine the target resource set in the at least one resource set according to a signal receiving quality of the first control information.
  • the processor 710 is specifically configured to: determine, in the at least one resource set, a resource set corresponding to the first control information with the highest signal receiving quality, which is the target resource set; or And at least one resource set, the resource set corresponding to the first control information that determines that the signal receiving quality is greater than or equal to the preset threshold is the target resource set.
  • the first control information is control information transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • PCIFCH physical control information format indication channel
  • DCI downlink control information
  • the first control information indicates a time domain resource size used to transmit control information in the current time domain resource unit, or the first control information indicates that the second time control is used in the current time domain resource unit The time domain resource size of the information.
  • the second control information is control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • different candidate resource sets in the multiple candidate resource sets occupy different frequency domain resources and/or different orthogonal frequency division multiplexing OFDM symbols.
  • the processor 710 may be a central processing unit (“CPU"), and the processor 710 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 730 can include read only memory and random access memory and provides instructions and data to the processor 710. A portion of the memory 730 may also include a non-volatile random access memory. For example, the memory 730 can also store information of the device type.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 710.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in memory 730, and processor 710 reads the information in memory 730 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the terminal device 700 according to the embodiment of the present application may correspond to the terminal device for performing the method 200 in the foregoing method 200, and the terminal device 500 according to the embodiment of the present application, and each unit or module in the terminal device 700 is used for The operations or processes performed by the terminal device in the above method 200 are performed.
  • each unit or module in the terminal device 700 is used for The operations or processes performed by the terminal device in the above method 200 are performed.
  • detailed description thereof will be omitted.
  • FIG. 8 is a schematic structural diagram of a network device 800 according to an embodiment of the present application.
  • the network device includes a processor 810, a transceiver 820, and a memory 830, wherein the processor 810, the transceiver 820, and the memory 830 communicate with each other through an internal connection path.
  • the memory 830 is for storing instructions
  • the processor 810 is configured to execute instructions stored by the memory 830 to control the transceiver 820 to receive signals or send signals.
  • the processor 810 is configured to: determine a plurality of candidate resource sets for transmitting the first control information
  • the transceiver 820 is configured to: send the first control information to the terminal device in the multiple candidate resource sets, where the beam for transmitting the first control information on each candidate resource set, and the multiple The beams used to transmit the first control information on the other candidate resource sets in the candidate resource set are different;
  • the processor 810 is further configured to: determine a plurality of control channel resources corresponding to the multiple candidate resource sets;
  • the transceiver 820 is further configured to send second control information to the terminal device on the multiple control channel resources, where a beam for transmitting the second control information is used on each control channel resource, and The beams for transmitting the first control information are the same on the candidate resource set corresponding to each control channel.
  • the network device sends the first control information and the second control information to the terminal device by using the same beam on the corresponding candidate resource set and the control channel resource, so that the terminal device sends the two network devices through the same beam.
  • the second control information can be received on the control channel resource corresponding to the resource set for receiving the first control information, so that the terminal device does not need to perform a large amount on the multiple control channel resources when receiving the second control information.
  • Blind detection reduces the complexity of blind detection of the second control information. .
  • the first control information is control information transmitted by using a physical control information format indication channel PCIFCH or downlink control information DCI in a common search space.
  • PCIFCH physical control information format indication channel
  • DCI downlink control information
  • the first control information indicates a time domain resource size used to transmit control information in the current time domain resource unit, or the first control information indicates that the second time control is used in the current time domain resource unit The time domain resource size of the information.
  • the second control information is control information transmitted by DCI in a common search space or DCI in a dedicated search space of the terminal device.
  • the multiple candidate resource sets include at least one of the following: a physical resource set, a sequence resource set, and a control channel resource set.
  • different candidate resource sets in the multiple candidate resource sets occupy different frequency domain resources and/or different orthogonal frequency division multiplexing OFDM symbols.
  • the processor 810 may be a central processing unit (“CPU"), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs), Application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 830 can include read only memory and random access memory and provides instructions and data to the processor 810. A portion of the memory 830 may also include a non-volatile random access memory. For example, the memory 830 can also store information of the device type.
  • each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiments of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 810.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 830, and the processor 810 reads the information in the memory 830.
  • the steps of the above method are completed in combination with the hardware. To avoid repetition, it will not be described in detail here.
  • the network device 800 may correspond to the network device for performing the method 400 in the foregoing method 400, and the network device 600 according to the embodiment of the present application, and each unit or module in the network device 800 is used for The operations or processes performed by the network device in the above method 400 are performed.
  • each unit or module in the network device 800 is used for The operations or processes performed by the network device in the above method 400 are performed.
  • detailed description thereof will be omitted.
  • FIG. 9 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 900 of FIG. 9 includes an input interface 901, an output interface 902, at least one processor 903, and a memory 904.
  • the input interface 901, the output interface 902, the processor 903, and the memory 904 are interconnected by an internal connection path.
  • the processor 903 is configured to execute code in the memory 904.
  • the processor 903 can implement a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 903 can implement a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • 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 may be Integrate 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 indirect coupling through some interfaces, devices or units or Communication connections can be in electrical, mechanical or other form.
  • 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.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used 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 method of 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 disk, or an optical disk.

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Abstract

本申请公开了一种传输下行控制信息的方法、终端设备和网络设备，该方法包括：终端设备确定用于传输第一控制信息的多个候选资源集；终端设备在多个候选资源集中，检测网络设备发送的第一控制信息；终端设备根据第一控制信息的检测结果，在多个候选资源集中确定目标资源集；终端设备根据目标资源集和第一映射关系，确定与该目标资源集对应的目标控制信道资源，该第一映射关系用于表示多个候选资源集与多个控制信道资源之间的对应关系；终端设备在该目标控制信道资源中，检测网络设备发送的第二控制信息。这样，能够降低终端设备对控制信息的盲检复杂度。

Description

传输下行控制信息的方法、终端设备和网络设备 技术领域
本申请实施例涉及无线通信领域，并且更具体地，涉及一种传输下行控制信息的方法、终端设备和网络设备。
背景技术
在长期演进(Long Term Evolution，简称“LTE”)***中，终端需要先在控制信道资源中检测物理控制信息格式指示信道(Physical Control Format Indicator Channel，简称“PCIFCH”)，根据其中的信息确定传输物理下行控制信道(Physical Downlink Control Channel，简称“PDCCH”)的正交频分复用(Orthogonal Frequency Division Multiplexing，简称“OFDM”)符号数，并在相应的OFDM符号中的控制信道资源上检测PDCCH。PDCCH的搜索空间分为公共搜索空间和终端专属搜索空间，前者用于传输一些公共下行控制信息(Downlink Control Information，简称“DCI”)，后者用于传输终端专属DCI。公共DCI是广播发送给小区里所有终端的DCI，携带一些小区公共信息例如寻呼(paging)、随机接入响应、广播控制信道(Broadcast Control Channel，简称“BCCH”)等，采用终端公知的无线网络临时标识(Radio Network Tempory Identity，简称“RNTI”)进行DCI的循环冗余校验(Cyclic Redundancy Check，简称“CRC”)校验码加扰，一般携带的信息很少。终端专属DCI是发送给某一个终端的DCI，用于调度终端的数据传输或者信道状态信息(Channel State Information，简称“CSI”)的上报，可以采用较大的DCI。由于采用终端专属的RNTI进行DCI的CRC校验码加扰，因此一个终端无法检测到另一个终端的专属DCI。
在5G***中，控制信道中的信息可以通过波束赋形传输来提高检测性能。网络侧设备可以通过多个波束来发送控制信道，不同波束对准不同的方向，从而不同位置的终端都可以从接收功率最强的波束(即对准自己的波束)上检测到控制信道。对于PCIFCH、公共DCI和终端专属DCI等信息，都可以通过多个波束进行传输，且采用不同波束传输的控制信息一般在不同的控制信道资源上传输，终端需要在多个控制信道资源上进行检测以获得控制信息。PCIFCH和公共DCI中携带的信息很少，只需要较少的控制信道资源， 终端盲检的复杂度较低。而专属DCI中携带的信息很多，需要较多的控制信道资源，盲检复杂度较高，如果终端在多个控制信道资源中都进行盲检，会明显增加终端的检测复杂度。
发明内容
本申请实施例提供了一种传输下行控制信息的方法、终端设备和网络设备，能够降低终端设备对控制信息的盲检复杂度。
第一方面，提供了一种传输下行控制信息的方法，其特征在于，包括：终端设备确定用于传输第一控制信息的多个候选资源集；所述终端设备在所述多个候选资源集中，检测网络设备发送的所述第一控制信息；所述终端设备根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集；所述终端设备根据所述目标资源集和第一映射关系，确定与所述目标资源集对应的目标控制信道资源，所述第一映射关系用于表示所述多个候选资源集与多个控制信道资源之间的对应关系；所述终端设备在所述目标控制信道资源中，检测网络设备发送的第二控制信息。
因此，终端设备在接收网络设备通过相同波束发送的两个控制信息时，通过在与用于接收第一控制信息的资源集对应的控制信道资源上，接收第二控制信息，使得终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，从而降低了终端设备对第二控制信息的盲检复杂度。
其中，在第一映射关系中，多个候选资源集与多个控制信道资源之间的对应关系，可以是网络设备确定并发送给终端设备的，也可以是终端设备与网络设备之间事先约定例如协议中规定的。
另外，多个候选资源集与多个控制信道资源之间的该对应关系例如可以通过表格、公式、图像等方式来呈现，且该对应关系中，多个候选资源集与多个控制信道资源之间可以是一一对应；一个候选资源集也可以对应多个控制信道资源；或者一个控制信道资源也可以对应多个候选资源集。也就是说，终端设备可以通过查找预设的包括多个候选资源集与多个控制信道资源之间对应关系的表格，来确定与该目标资源集对应的控制信道资源，该表格中包括多个候选资源集的信息和控制信道资源的信息；或者终端设备也可以通过预设的表示位置关系的公式和该目标资源集的相关参数信息，来计算与该目标资源集对应的控制信道资源的位置和大小等信息。本申请对此不做限 定。
可选地，在第一方面的一种实现方式中，所述目标控制信道资源上用于传输所述第二控制信息的波束，与所述目标资源集上用于发送所述第一控制信息的波束相同。
具体地说，网络设备可以通过多个波束来发送第一控制信息，采用不同波束发送的第一控制信息在不同的候选资源集上进行传输，不同的波束对准不同的方向，从而使不同位置的终端设备都可以在对准自己的波束上以较强的接收功率接收到第一控制信息，即，在多个候选资源集中，不同的候选资源集用于传输采用不同波束进行赋形的第一控制信息。终端设备需要在该多个候选资源集中的每个候选资源上检测该第一控制信息。其中，该第一控制信息的格式和内容例如第一控制信息所使用的DCI格式(DCI format)是终端设备已知的，终端设备需要在该多个候选资源集中分别进行盲检。
应理解，终端设备可以在每个候选资源集中分别检测每个候选资源集中传输的第一控制信息，也可以在多个候选资源集中联合检测该第一控制信息。
可选地，在第一方面的一种实现方式中，所述终端设备根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集，包括：所述终端设备在所述多个候选资源集中的能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集。
可选地，在第一方面的一种实现方式中，所述终端设备在所述多个候选资源集中的能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集，包括：所述终端设备将所述至少一个资源集，确定为所述目标资源集。
可选地，在第一方面的一种实现方式中，所述终端设备在所述多个候选资源集中的能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集，包括：所述终端设备根据所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源集。
可选地，在第一方面的一种实现方式中，所述终端设备根据所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源集，包括：所述终端设备在所述至少一个资源集中，确定信号接收质量最高的所述第一控制信息所对应的资源集，为所述目标资源集；或者所述终端设备在所 述至少一个资源集中，确定信号接收质量大于或等于预设阈值的所述第一控制信息所对应的资源集，为所述目标资源集。
应理解，对于终端设备来说，若多个候选资源集中的目标资源集上传输的第一控制信息的信号接收质量较优，由于与该目标资源集对应的该目标控制信道资源上传输的第二控制信息也使用该波束进行传输，那么终端设备在该目标控制信道资源上接收的第二控制信息，也可以具有较优的信号接收质量。终端设备只需要在该目标控制信道资源上检测该第二控制信息就可以了，减少了***开销。
可选地，在第一方面的一种实现方式中，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，在第一方面的一种实现方式中，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
可选地，在第一方面的一种实现方式中，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
例如，该公共搜索空间中的DCI可以是公共DCI，也可以是发给一组终端设备的组DCI，也可以是一些携带信息较少的终端设备的专属DCI。如果第一控制信息是通过PCIFCH传输的控制信息，那么第二控制信息可以是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。如果第一控制信息可以是通过公共搜索空间中的DCI传输的控制信息，那么第二控制信息可以是通过终端设备的专属搜索空间中的DCI传输的控制信息。
如果是公共DCI中携带该第一控制信息，那么该第一控制信息在传输时可以采用多个终端设备公知的RNTI进行CRC校验码的加扰。如果是终端设备专属的DCI中携带该第一控制信息，那么该第一控制信息在传输时可以采用该终端设备专属的RNTI进行DCI的CRC校验码加扰，其他终端设备无法检测到该终端设备的专属DCI。
可选地，在第一方面的一种实现方式中，所述多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
例如，物理资源集可以是多个物理资源块(Physical Resource Block，简 称“PRB”)组成的频域资源集合，不同的资源集合占用不同的频域资源。又例如，可以通过一个序列集合来传输该第一控制信息或该第一控制信息的解调参考信号(Demodulation Reference Sgnal，简称“DMRS”)，不同的序列资源集中包括不同的序列。又例如控制信道资源集可以是控制信道单元(Control Channel Element，简称“CCE”)集合，不同的控制信道资源集中包括不同的CCE。
可选地，在第一方面的一种实现方式中，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
第二方面，提供了一种传输SRS的方法，其特征在于，包括：网络设备确定用于传输第一控制信息的多个候选资源集；所述网络设备在所述多个候选资源集中向终端设备发送所述第一控制信息，其中，每个候选资源集上用于发送所述第一控制信息的波束，与所述多个候选资源集中其他候选资源集上用于发送所述第一控制信息的波束是不相同的；所述网络设备确定与所述多个候选资源集对应的多个控制信道资源；所述网络设备在所述多个控制信道资源上，向所述终端设备发送第二控制信息，其中，每个控制信道资源上用于发送所述第二控制信息的波束，与在所述每个控制信道对应的候选资源集上用于传输所述第一控制信息的波束相同。
因此，网络设备使用相同的波束在对应的候选资源集和控制信道资源上，分别向终端设备发送第一控制信息和第二控制信息，使得终端设备在接收网络设备通过相同波束发送的这两个控制信息时，能够在用于接收第一控制信息的资源集所对应的控制信道资源上，接收第二控制信息，从而终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，降低了对第二控制信息的盲检复杂度。
具体地说，网络设备可以通过多个波束来发送第一控制信息，采用不同波束发送的第一控制信息是在不同的候选资源集上进行传输的，不同的波束对准不同的方向，从而使不同位置的终端设备都可以在对准自己的波束上以较强的接收功率接收到第一控制信息，即，在多个候选资源集中，不同的候选资源集用于传输采用不同波束进行赋形的第一控制信息。
可选地，在第二方面的一种实现方式中，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，在第二方面的一种实现方式中，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
可选地，在第二方面的一种实现方式中，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
例如，该公共搜索空间中的DCI可以是公共DCI，也可以是发给一组终端设备的组DCI，也可以是一些携带信息较少的终端设备的专属DCI。如果第一控制信息是通过PCIFCH传输的控制信息，那么第二控制信息可以是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。如果第一控制信息可以是通过公共搜索空间中的DCI传输的控制信息，那么第二控制信息可以是通过终端设备的专属搜索空间中的DCI传输的控制信息。
可选地，在第二方面的一种实现方式中，所述多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
可选地，在第二方面的一种实现方式中，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
应理解，在某些情况下，例如，如果第一控制信息是通过PCIFCH传输的控制信息，或者是通过公共搜索空间中的下行控制信息DCI传输的控制信息比如公共DCI，第二控制信息时通过终端设备的专属搜索空间传输的专属DCI中携带的终端设备的专属控制信息。那么该方法中，终端设备在用于传输第一控制信息的多个候选资源集中检测第一控制信息后，如果向网络设备反馈了终端设备根据第一控制信息的检测结果确定的目标资源集，那么网络设备根据终端设备的反馈，可以获知对终端设备来说接收信号质量较优的第一控制信号传输时所使用的目标资源集，从而只在该目标资源集对应的控制信道资源上使用相同的波束向该终端设备发送第二控制信息，减少了***开销。
第三方面，提供了一种终端设备，该终端设备可以执行上述第一方面或第一方面的任意可选的实现方式中的终端设备的操作。具体地，该终端设备可以包括用于执行上述第一方面或第一方面的任意可能的实现方式中的终端设备的操作的模块单元。
第四方面，提供了一种网络设备，该网络设备可以执行上述第二方面或 第二方面的任意可选的实现方式中的网络设备的操作。具体地，该网络设备可以包括用于执行上述第二方面或第二方面的任意可能的实现方式中的网络设备的操作的模块单元。
第五方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该终端设备执行第一方面或第一方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第三方面提供的终端设备。
第六方面，提供了一种网络设备，该网络设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。该存储器用于存储指令，该处理器用于执行该存储器存储的指令。当该处理器执行该存储器存储的指令时，该执行使得该网络设备执行第二方面或第二方面的任意可能的实现方式中的方法，或者该执行使得该网络设备实现第四方面提供的网络设备。
第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第一方面，及其各种实现方式中的任一种传输下行控制信息的方法。
第八方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第二方面，及其各种实现方式中的任一种传输下行控制信息的方法。
第九方面，提供了一种***芯片，该***芯片包括输入接口、输出接口、处理器和存储器，该持利器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第一方面及其各种实现方式中的任一种方法。
第十方面，提供了一种***芯片，该***芯片包括输入接口、输出接口、处理器和存储器，该持利器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第二方面及其各种实现方式中的任一种方法。
基于本申请实施例的技术方案，网络设备使用相同的波束在对应的候选资源集和控制信道资源上，分别向终端设备发送第一控制信息和第二控制信息，使得终端设备在接收网络设备通过相同波束发送的两个控制信息时，通过在与用于接收第一控制信息的资源集对应的控制信道资源上，接收第二控 制信息，使得终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，从而降低了终端设备对第二控制信息的盲检复杂度。
附图说明
图1是本申请实施例的一种应用场景的示意性架构图。
图2是本申请实施例的传输下行控制信息的方法的示意性流程图。
图3(a)是本申请实施例的第一映射关系的示意图。
图3(b)是本申请实施例的第一映射关系的示意图。
图3(c)是本申请实施例的第一映射关系的示意图。
图4是本申请实施例的传输下行控制信息的方法的示意性流程图。
图5是本申请实施例的终端设备的示意性框图。
图6是本申请实施例的网络设备的示意性框图。
图7是本申请实施例的终端设备的示意性结构图。
图8是本申请实施例的网络设备的示意性结构图。
图9是本申请实施例的***芯片的示意性结构图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
应理解，本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(Global System of Mobile Communication，简称“GSM”)***、码分多址(Code Division Multiple Access，简称“CDMA”)***、宽带码分多址(Wideband Code Division Multiple Access，简称“WCDMA”)***、长期演进(Long Term Evolution，简称“LTE”)***、LTE频分双工(Frequency Division Duplex，简称“FDD”)***、LTE时分双工(Time Division Duplex，简称“TDD”)、通用移动通信***(Universal Mobile Telecommunication System，简称“UMTS”)、以及未来的5G通信***等。
本申请结合终端设备描述了各个实施例。终端设备也可以指用户设备(User Equipment，简称“UE”)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称“SIP”)电话、无线本地环路(Wireless Local  Loop，简称“WLL”)站、个人数字处理(Personal Digital Assistant，简称“PDA”)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的PLMN网络中的终端设备等。
本申请结合网络设备描述了各个实施例。网络设备可以是用于与终端设备进行通信的设备，例如，可以是GSM***或CDMA中的基站(Base Transceiver Station，简称“BTS”)，也可以是WCDMA***中的基站(NodeB，简称“NB”)，还可以是LTE***中的演进型基站(Evolutional Node B，简称“eNB”或“eNodeB”)，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络侧设备或未来演进的PLMN网络中的网络侧设备等。
图1是本申请实施例的一个应用场景的示意图。图1中的通信***可以包括网络设备10和终端设备20。网络设备10用于为终端设备20提供通信服务并接入核心网，终端设备20可以通过搜索网络设备10发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备20与网络设备10之间的蜂窝链路进行的上/下行传输。
本申请实施例中的网络可以是指公共陆地移动网络(Public Land Mobile Network，简称“PLMN”)或者设备对设备(Device to Device，简称“D2D”)网络或者机器对机器/人(Machine to Machine/Man，简称“M2M”)网络或者其他网络，图1只是举例的简化示意图，网络中还可以包括其他终端设备，图1中未予以画出。
图2是根据本申请实施例的传输下行控制信息的方法200的示意性流程图。该方法200可以由终端设备来执行。如图2所示，该传输数据的具体流程包括：
在210中，终端设备确定用于传输第一控制信息的多个候选资源集。
其中，可选地，该多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
也就是说，终端设备可以确定用于传输第一控制信息的多个候选的物理资源集，或者用于传输第一控制信息的多个候选的序列资源集、或者用于传输第一控制信息的多个候选的控制信道资源集。
例如，物理资源集可以是多个物理资源块(Physical Resource Block，简 称“PRB”)组成的频域资源集合，不同的资源集合占用不同的频域资源。又例如，可以通过一个序列集合来传输该第一控制信息或该第一控制信息的解调参考信号(Demodulation Reference Sgnal，简称“DMRS”)，不同的序列资源集中包括不同的序列。又例如控制信道资源集可以是控制信道单元(Control Channel Element，简称“CCE”)集合，不同的控制信道资源集中包括不同的CCE。
可选地，该多个候选资源集可以占用多个频域资源和/或多个正交频分复用OFDM符号。
例如，该多个候选资源集可以是位于相同符号上的且占用不同的频带的多个资源集合，或者该多个候选资源集可以是占用不同频带且位于相同符号上的多个资源集合，或者该多个候选资源集占用的时频资源各不相同。
可选地，该第一控制信息可以是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，该第二控制信息可以是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
例如，该公共搜索空间中的DCI可以是公共DCI，也可以是发给一组终端设备的组DCI，也可以是一些携带信息较少的终端设备的专属DCI。如果第一控制信息是通过PCIFCH传输的控制信息，那么第二控制信息可以是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。如果第一控制信息是通过公共搜索空间中的DCI传输的控制信息，那么第二控制信息可以是通过终端设备的专属搜索空间中的DCI传输的控制信息。
如果是公共DCI中携带该第一控制信息，那么该第一控制信息在传输时可以采用多个终端设备公知的RNTI进行CRC校验码的加扰。如果是终端设备专属的DCI中携带该第一控制信息，那么该第一控制信息在传输时可以采用该终端设备专属的RNTI进行DCI的CRC校验码加扰，其他终端设备无法检测到该终端设备的专属DCI。
可选地，该第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者该第一控制信息指示当前时域资源单元中用于传输该第二控制信息的时域资源大小。
例如，该第一控制信息可以用来指示当前时域资源单元例如子帧或时隙 中用于传输控制信息的时域资源大小例如OFDM符号数N。由于控制信息的发送通常在发送数据之前，因而终端设备根据第一控制信息指示的该OFDM符号数N，就可以确定在目标控制信道资源例如一个时隙的前N个符号上检测控制信息，该控制信息可以包括该第一控制信息、该第二控制信息和其他控制信息。或者该第一控制信息可以用来指示当前时域资源单元例如子帧或时隙中用于传输该第二控制信息的时域资源大小。
在220中，终端设备在多个候选资源集中，检测网络设备发送的该第一控制信息。
具体地说，网络设备可以通过多个波束来发送第一控制信息，采用不同波束发送的第一控制信息在不同的候选资源集上进行传输，不同的波束对准不同的方向，从而使不同位置的终端设备都可以在对准自己的波束上以较强的接收功率接收到第一控制信息，即，在多个候选资源集中，不同的候选资源集用于传输采用不同波束进行赋形的第一控制信息。终端设备需要在该多个候选资源集中的每个候选资源上检测该第一控制信息。其中，该第一控制信息的格式和内容例如第一控制信息所使用的DCI格式(DCI format)是终端设备已知的，终端设备需要在该多个候选资源集中分别进行盲检。
应理解，终端设备可以在每个候选资源集中分别检测每个候选资源集中传输的第一控制信息，也可以在多个候选资源集中联合检测该第一控制信息。
在230中，终端设备根据该第一控制信息的检测结果，在多个候选资源集中确定目标资源集。
终端设备分别对多个候选资源中的第一控制信息检测之后，可以根据多个候选资源集中的该第一控制的检测结果，在多个候选资源集中确定目标资源集。可选地，终端设备在该多个候选资源集中的能够检测到该第一控制信息的至少一个资源集中，确定该目标资源集。
例如，终端设备可以在能够检测到该第一控制信息的至少一个资源集中，随机选择一个或几个资源集作为目标资源集。或者，终端设备可以通过以下两种方式来确定目标资源集。
方式1
可选地，终端设备在该多个候选资源集中的能够检测到该第一控制信息的至少一个资源集中，确定该目标资源集，包括：终端设备将该至少一个资 源集，确定为该目标资源集。也就是说，终端设备可以将该至少一个资源集中的全部资源集，都作为该目标资源集。
另外，如果终端设备从多个候选资源集合中都检测到了该第一控制信息，那么可以将检测到该第一控制信息的该多个候选资源集都作为目标资源集。或者，终端设备也可以从检测到该第一控制信息的至少一个候选资源集中，根据第一控制信息的信号接收质量来确定目标资源集，即方式2。
方式2
可选地，终端设备在该多个候选资源集中的能够检测到该第一控制信息的至少一个资源集中，确定该目标资源集，包括：终端设备根据该第一控制信息的信号接收质量，在该至少一个资源集中确定该目标资源集。
例如，终端设备可以在该至少一个资源集中，确定信号接收质量最高的该第一控制信息所对应的资源集，为该目标资源集；或者终端设备可以在该至少一个资源集中，确定信号接收质量大于或等于预设阈值的该第一控制信息所对应的资源集，为该目标资源集。
该实施例中，在多个候选资源集中，若目标资源集上传输的第一控制信息的信号接收质量较优，由于与该目标资源集对应的该目标控制信道资源上传输的第二控制信息也使用该波束进行传输，那么终端设备在该目标控制信道资源上接收的第二控制信息，也可以具有较优的信号接收质量。终端设备只需要在该目标控制信道资源上检测该第二控制信息就可以了，降低了终端设备的盲检复杂度。
在240中，终端设备根据该目标资源集和第一映射关系，确定与该目标资源集对应的目标控制信道资源。
其中，该第一映射关系用于表示该多个候选资源集与多个控制信道资源之间的对应关系。
该第一映射关系中，多个候选资源集与多个控制信道资源之间的对应关系，可以是网络设备确定并发送给终端设备的，也可以是终端设备与网络设备之间事先约定例如协议中规定的。
另外，多个候选资源集与多个控制信道资源之间的该对应关系例如可以通过表格、公式、图像等方式来呈现，且该对应关系中，多个候选资源集与多个控制信道资源之间可以是一一对应；一个候选资源集也可以对应多个控制信道资源；或者一个控制信道资源也可以对应多个候选资源集。也就是说， 终端设备可以通过查找预设的包括多个候选资源集与多个控制信道资源之间对应关系的表格，来确定与该目标资源集对应的控制信道资源，该表格中包括多个候选资源集的信息和控制信道资源的信息；或者终端设备也可以通过预设的表示位置关系的公式和该目标资源集的相关参数信息，来计算与该目标资源集对应的控制信道资源的位置和大小等信息。本申请对此不做限定。
例如图3(a)所示的多个候选资源集与多个控制信道资源之间的对应关系。多个候选资源集位于当前时域资源单元例如子帧或时隙中的相同符号上且占用不同的频域资源，每个候选资源集对应一个控制信道资源，不同的控制信道资源位于相同符号上且占用不同的频域资源。图3(a)中示出了四个候选资源集，这四个候选资源集与四个不同的控制信道资源一一对应，相互对应的候选资源集和控制信道资源上传输的控制信息所使用的波束是相同的。
又例如图3(b)所示的多个候选资源集与多个控制信道资源之间的对应关系。多个候选资源集占用相同的频域资源且位于当前时域资源单元例如子帧或时隙中的不同符号上，每个候选资源集对应一个控制信道资源，不同的控制信道资源占用相同的频域资源且位于不同符号上。图3(b)中示出了四个候选资源集，四个候选资源集与四个不同的控制信道资源一一对应，相互对应的候选资源集和控制信道资源上传输的控制信息所使用的波束是相同的。
又例如图3(c)所示的多个候选资源集与多个控制信道资源之间的对应关系。多个候选资源集位于相同符号上且占用不同的频域资源，每个候选资源集对应一个控制信道资源，不同的控制信道资源位于不同符号上且占用相同的频域资源。图3(c)中示出了四个候选资源集，四个候选资源集与四个不同的控制信道资源一一对应，相互对应的候选资源集和控制信道资源上传输的控制信息所使用的波束是相同的。
在图3(a)至图3(b)中，候选资源集1上用于传输的第一控制信息所使用波束，和控制信道资源1上用于传输的第二控制信息所使用的波束为相同的波束比如波束1；候选资源集2上用于传输的第一控制信息所使用波束，和控制信道资源上2用于传输的第二控制信息所使用的波束为相同的波束比如波束2；候选资源集3上用于传输的第一控制信息所使用波束，和控 制信道资源上3用于传输的第二控制信息所使用的波束为相同的波束比如波束3；候选资源集4上用于传输的第一控制信息所使用波束，和控制信道资源上4用于传输的第二控制信息所使用的波束为相同的波束比如波束4，波束1、波束2、波束3和波束4为网络设备用于传输控制信息的不同的四个波束。
在250中，终端设备在该目标控制信道资源中，检测网络设备发送的第二控制信息。
具体地说，终端设备从目标资源集中获取第一控制信息后，终端设备在与目标资源集对应的目标控制信道资源中，检测网络设备发送的第二控制信息，该目标控制信道资源上用于传输该第二控制信息的波束，与该目标资源集上用于发送该第一控制信息的波束相同。
举例来说，如果第一控制信息是通过PCIFCH传输的控制信息，第二控制信息可以是通过公共搜索空间传输的公共DCI中携带的公共控制信息，或者是通过终端设备的专属搜索空间传输的专属DCI中携带的终端设备的专属控制信息。如果第一控制信息通过公共搜索空间传输的公共DCI中携带的公共控制信息，那么第二控制信息可以是通过终端设备的专属搜索空间传输的专属DCI中携带的终端设备的专属控制信息。
在具体实现时，在目标资源集中传输的第一控制信息，与在目标资源集对应的目标控制信道资源中传输的第二控制信息，网络设备可以采用相同的波束对第一控制信息和第二控制信息进行赋形。目标资源集中传输的第一控制信息与对应的该目标控制信道资源中传输的第二控制信息使用相同的波束进行传输。对于终端设备来说，多个候选资源集中目标资源集上传输的第一控制信息的信号接收质量若为最优，由于与该目标资源集对应的该目标控制信道资源上传输的第二控制信息也使用该波束进行传输，那么终端设备在该目标控制信道资源上接收的第二控制信息，也具有较优的信号接收质量。终端设备只需要在该目标控制信道资源上检测该第二控制信息就可以了。
本申请实施例中，终端设备在接收网络设备通过相同波束发送的两个控制信息时，通过在与用于接收第一控制信息的资源集对应的控制信道资源上，接收第二控制信息，使得终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，从而降低了终端设备对第二控制信息的盲检复杂度。
图4是根据本申请实施例的传输下行控制信息的方法400的示意性流程图。该方法400可以由网络设备来执行。如图4所示，该传输下行控制信息的具体流程包括：
在410中，网络设备确定用于传输第一控制信息的多个候选资源集。
其中，可选地，该多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
也就是说，终端设备可以确定用于传输第一控制信息的多个候选的物理资源集，或者用于传输第一控制信息的多个候选的序列资源集、或者用于传输第一控制信息的多个候选的控制信道资源集。
例如，物理资源集可以是多个物理资源块(Physical Resource Block，简称“PRB”)组成的频域资源集合，不同的资源集合占用不同的频域资源。又例如，可以通过一个序列集合来传输该第一控制信息或该第一控制信息的解调参考信号(Demodulation Reference Sgnal，简称“DMRS”)，不同的序列资源集中包括不同的序列。又例如控制信道资源集可以是控制信道单元(Control Channel Element，简称“CCE”)集合，不同的控制信道资源集中包括不同的CCE。
可选地，该多个候选资源集可以占用多个频域资源和/或多个正交频分复用OFDM符号。
例如，该多个候选资源集可以是位于相同符号上的且占用不同的频带的多个资源集合，或者该多个候选资源集可以是占用不同频带且位于相同符号上的多个资源集合，或者该多个候选资源集占用的时频资源各不相同。
可选地，该第一控制信息可以是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，该第二控制信息可以是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
例如，该公共搜索空间中的DCI可以是公共DCI，也可以是发给一组终端设备的组DCI，也可以是一些携带信息较少的终端设备的专属DCI。如果第一控制信息是网络设备通过PCIFCH传输的控制信息，那么第二控制信息可以是网络设备通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。如果第一控制信息可以是网络设备通过公共搜索空间中的DCI传输的控制信息，那么第二控制信息可以是网络设备通过终端 设备的专属搜索空间中的DCI传输的控制信息。
如果是公共DCI中携带该第一控制信息，那么该第一控制信息在传输时可以采用多个终端设备公知的RNTI进行CRC校验码的加扰。如果是终端设备专属的DCI中携带该第一控制信息，那么该第一控制信息在传输时可以采用该终端设备专属的RNTI进行DCI的CRC校验码加扰，其他终端设备无法检测到该终端设备的专属DCI。
可选地，该第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者该第一控制信息指示当前时域资源单元中用于传输该第二控制信息的时域资源大小。
例如，该第一控制信息可以用来指示当前时域资源单元例如子帧或时隙中用于传输控制信息的时域资源大小例如OFDM符号数N。由于控制信息的发送通常在发送数据之前，因而终端设备根据第一控制信息指示的该OFDM符号数N，就可以确定在目标控制信道资源例如一个时隙的前N个符号上检测控制信息，该控制信息可以包括该第一控制信息、该第二控制信息和其他控制信息。或者该第一控制信息可以用来指示当前时域资源单元例如子帧或时隙中用于传输该第二控制信息的时域资源大小。
在420中，网络设备在该多个候选资源集中向终端设备发送该第一控制信息。
其中，每个候选资源集上用于发送该第一控制信息的波束，与该多个候选资源集中其他候选资源集上用于发送该第一控制信息的波束是不相同的。
具体地说，网络设备可以通过多个波束来发送第一控制信息，采用不同波束发送的第一控制信息是在不同的候选资源集上进行传输的，不同的波束对准不同的方向，从而使不同位置的终端设备都可以在对准自己的波束上以较强的接收功率接收到第一控制信息，即，在多个候选资源集中，不同的候选资源集用于传输采用不同波束进行赋形的第一控制信息。
在430中，网络设备确定与该多个候选资源集对应的多个控制信道资源。
具体地说，多个候选资源集与多个控制信道资源之间满足第一映射关系。该第一映射关系中，多个候选资源集与多个控制信道资源之间的对应关系，可以是网络设备确定并发送给终端设备的，也可以是终端设备与网络设备之间事先约定例如协议中规定的。
该第一映射关系例如可以为图3(a)、图3(b)和图3(c)中所示，具 体可以参考前述240中的描述，为了简洁，这里不再赘述。
在440中，网络设备在该多个控制信道资源上，向终端设备发送第二控制信息。
其中，每个控制信道资源上用于发送该第二控制信息的波束，与在每个控制信道对应的候选资源集上用于传输该第一控制信息的波束相同。
具体地说，网络设备在多个控制信道资源上向终端设备发送第二控制信息时，在每个控制信道资源上发送的第二控制信息所使用的波束，与该控制信道资源对应的候选资源集上传输的第一控制信息所使用的波束是相同的波束。从而对于终端设备来说，在多个候选资源集中，若目标资源集上传输的第一控制信息的信号接收质量为最优，由于与该目标资源集对应的目标控制信道资源上传输的第二控制信息也使用该波束进行传输，那么终端设备在该目标控制信道资源上接收的第二控制信息，也具有较优的信号接收质量，终端设备只需要在该目标控制信道资源上检测该第二控制信息就可以了，避免了在多个控制信道资源上的大量盲检。
例如，如果第一控制信息是通过PCIFCH传输的控制信息，第二控制信息可以是通过公共搜索空间传输的公共DCI中携带的公共控制信息，或者是通过终端设备的专属搜索空间传输的专属DCI中携带的终端设备的专属控制信息，并且该第一控制信息中可以携带用于传输第二控制信息的时域资源大小的信息。如果第一控制信息通过公共搜索空间传输的公共DCI中携带的公共控制信息，那么第二控制信息可以是通过终端设备的专属搜索空间传输的专属DCI中携带的终端设备的专属控制信息。
应理解，在某些情况下，例如，如果第一控制信息是通过PCIFCH传输的控制信息，或者是通过公共搜索空间中的下行控制信息DCI传输的控制信息比如公共DCI，第二控制信息是通过终端设备的专属搜索空间传输的专属DCI中携带的终端设备的专属控制信息。那么该方法中，终端设备在用于传输第一控制信息的多个候选资源集中检测第一控制信息后，如果向网络设备反馈了终端设备根据第一控制信息的检测结果确定的目标资源集，那么网络设备可以根据终端设备的反馈，获知对终端设备来说接收信号质量较优的用于传输第一控制信号的目标资源集，从而只在该目标资源集对应的控制信道资源上使用相同的波束向该终端设备发送第二控制信息，减少了***开销。
本申请实施例中，网络设备使用相同的波束在对应的候选资源集和控制 信道资源上，分别向终端设备发送第一控制信息和第二控制信息，使得终端设备在接收网络设备通过相同波束发送的这两个控制信息时，能够在用于接收第一控制信息的资源集所对应的控制信道资源上，接收第二控制信息，从而终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，降低了对第二控制信息的盲检复杂度。
图5是根据本申请实施例的终端设备500的示意性框图。如图5所示，该终端设备500包括确定单元510和检测单元520。其中，
该确定单元510用于：确定用于传输第一控制信息的多个候选资源集；
该检测单元520用于：在所述多个候选资源集中，检测网络设备发送的所述第一控制信息；
该确定单元510还用于，根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集；
该确定单元510还用于，根据所述目标资源集和第一映射关系，确定与所述目标资源集对应的目标控制信道资源，所述第一映射关系用于表示所述多个候选资源集与多个控制信道资源之间的对应关系；
该检测单元520还用于，在所述目标控制信道资源中，检测网络设备发送的第二控制信息。
因此，终端设备在接收网络设备通过相同波束发送的两个控制信息时，通过在与用于接收第一控制信息的资源集对应的控制信道资源上，接收第二控制信息，使得终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，从而降低了终端设备对第二控制信息的盲检复杂度。
可选地，所述目标控制信道资源上用于传输所述第二控制信息的波束，与所述目标资源集上用于发送所述第一控制信息的波束相同。
可选地，所述确定单元510具体用于：将所述多个候选资源集中的能够检测到所述第一控制信息的资源集，确定为所述目标资源集。
可选地，所述确定单元510具体用于：在所述多个候选资源集中，确定能够检测到所述第一控制信息的至少一个资源集；根据所述至少一个资源集中的所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源集。
可选地，所述确定单元510具体用于：在所述至少一个资源集中，确定信号接收质量最高的所述第一控制信息所对应的资源集，为所述目标资源 集；或者在所述至少一个资源集中，确定信号接收质量大于预设阈值的所述第一控制信息所对应的资源集，为所述目标资源集。
可选地，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
可选地，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
可选地，所述多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
可选地，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
应理解，该终端设备500可以对应于方法实施例中的终端设备，可以实现该终端设备的相应功能，为了简洁，在此不再赘述。
图6是根据本申请实施例的网络设备600的示意性框图。如图6所示，该网络设备600包括确定单元610和发送单元620。其中，
该确定单元610用于：确定用于传输第一控制信息的多个候选资源集；
该发送单元620用于：在所述多个候选资源集中向终端设备发送所述第一控制信息，其中，每个候选资源集上用于发送所述第一控制信息的波束，与所述多个候选资源集中其他候选资源集上用于发送所述第一控制信息的波束是不相同的；
该确定单元610还用于：确定与所述多个候选资源集对应的多个控制信道资源；
该发送单元620还用于：在所述多个控制信道资源上，向所述终端设备发送第二控制信息，其中，每个控制信道资源上用于发送所述第二控制信息的波束，与在所述每个控制信道对应的候选资源集上用于传输所述第一控制信息的波束相同。
因此，网络设备使用相同的波束在对应的候选资源集和控制信道资源上，分别向终端设备发送第一控制信息和第二控制信息，使得终端设备在接收网络设备通过相同波束发送的这两个控制信息时，能够在用于接收第一控 制信息的资源集所对应的控制信道资源上，接收第二控制信息，从而终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，降低了对第二控制信息的盲检复杂度。
可选地，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
可选地，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
可选地，所述多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
可选地，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
图7是根据本申请实施例的终端设备700的示意性结构图。如图7所示，该终端设备包括处理器710、收发器720和存储器730，其中，该处理器710、收发器720和存储器730之间通过内部连接通路互相通信。该存储器730用于存储指令，该处理器710用于执行该存储器730存储的指令，以控制该收发器720接收信号或发送信号。
该处理器710用于：确定用于传输第一控制信息的多个候选资源集；
该收发器720用于：在所述多个候选资源集中，检测网络设备发送的所述第一控制信息；
该处理器710还用于：根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集；
该处理器710还用于：根据所述目标资源集和第一映射关系，确定与所述目标资源集对应的目标控制信道资源，所述第一映射关系用于表示所述多个候选资源集与多个控制信道资源之间的对应关系；
该收发器720还用于：在所述目标控制信道资源中，检测网络设备发送的第二控制信息。
因此，网络设备使用相同的波束在对应的候选资源集和控制信道资源上，分别向终端设备发送第一控制信息和第二控制信息，使得终端设备在接 收网络设备通过相同波束发送的这两个控制信息时，能够在用于接收第一控制信息的资源集所对应的控制信道资源上，接收第二控制信息，从而终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，降低了对第二控制信息的盲检复杂度。
可选地，所述目标控制信道资源上用于传输所述第二控制信息的波束，与所述目标资源集上用于发送所述第一控制信息的波束相同。
可选地，所述处理器710具体用于：在所述多个候选资源集中能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集。
可选地，所述处理器710具体用于：将所述至少一个资源集，确定为所述目标资源集
可选地，所述处理器710具体用于：根据所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源集。
可选地，所述处理器710具体用于：在所述至少一个资源集中，确定信号接收质量最高的所述第一控制信息所对应的资源集，为所述目标资源集；或者在所述至少一个资源集中，确定信号接收质量大于或等于预设阈值的所述第一控制信息所对应的资源集，为所述目标资源集。
可选地，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
可选地，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
可选地，所述多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
可选地，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
应理解，在本申请实施例中，该处理器710可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器710还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。 通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器730可以包括只读存储器和随机存取存储器，并向处理器710提供指令和数据。存储器730的一部分还可以包括非易失性随机存取存储器。例如，存储器730还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器710中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器710中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器730，处理器710读取存储器730中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的终端设备700可以对应于上述方法200中用于执行方法200的终端设备，以及根据本申请实施例的终端设备500，且该终端设备700中的各单元或模块分别用于执行上述方法200中终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图8是根据本申请实施例的网络设备800的示意性结构图。如图8所示，该网络设备包括处理器810、收发器820和存储器830，其中，该处理器810、收发器820和存储器830之间通过内部连接通路互相通信。该存储器830用于存储指令，该处理器810用于执行该存储器830存储的指令，以控制该收发器820接收信号或发送信号。
该处理器810用于：确定用于传输第一控制信息的多个候选资源集；
该收发器820用于：在所述多个候选资源集中向终端设备发送所述第一控制信息，其中，每个候选资源集上用于发送所述第一控制信息的波束，与所述多个候选资源集中其他候选资源集上用于发送所述第一控制信息的波束是不相同的；
该处理器810还用于：确定与所述多个候选资源集对应的多个控制信道资源；
该收发器820还用于：在所述多个控制信道资源上，向所述终端设备发送第二控制信息，其中，每个控制信道资源上用于发送所述第二控制信息的波束，与在所述每个控制信道对应的候选资源集上用于传输所述第一控制信息的波束相同。
因此，网络设备使用相同的波束在对应的候选资源集和控制信道资源上，分别向终端设备发送第一控制信息和第二控制信息，使得终端设备在接收网络设备通过相同波束发送的这两个控制信息时，能够在用于接收第一控制信息的资源集所对应的控制信道资源上，接收第二控制信息，从而终端设备在接收第二控制信息时无需在多个控制信道资源上进行大量盲检，降低了对第二控制信息的盲检复杂度。。
可选地，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
可选地，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
可选地，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
可选地，所述多个候选资源集包括以下中的至少一种：物理资源集、序列资源集、控制信道资源集。
可选地，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
应理解，在本申请实施例中，该处理器810可以是中央处理单元(Central Processing Unit，简称“CPU”)，该处理器810还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器830可以包括只读存储器和随机存取存储器，并向处理器810提供指令和数据。存储器830的一部分还可以包括非易失性随机存取存储器。例如，存储器830还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器810中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器810中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器830，处理器810读取存储器830中的信息， 结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的网络设备800可以对应于上述方法400中用于执行方法400的网络设备，以及根据本申请实施例的网络设备600，且该网络设备800中的各单元或模块分别用于执行上述方法400中网络设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图9是本申请实施例的***芯片的一个示意性结构图。图9的***芯片900包括输入接口901、输出接口902、至少一个处理器903、存储器904，所述输入接口901、输出接口902、所述处理器903以及存储器904之间通过内部连接通路互相连接。所述处理器903用于执行所述存储器904中的代码。
可选地，当所述代码被执行时，所述处理器903可以实现方法实施例中由终端设备执行的方法。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器903可以实现方法实施例中由网络设备执行的方法。为了简洁，这里不再赘述。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
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***、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***、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，该单元的划分，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***，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。
该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。
该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该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，简称“ROM”)、随机存取存储器(Random Access Memory，简称“RAM”)、磁碟或者光盘等各种可以存储程序代码的介质。
以上，仅为本申请的具体实施方式，但本申请实施例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实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请适合私利的保护范围之内。因此，本申请实施例的保护范围应该以权利要求的保护范围为准。

Claims (34)

  1. 一种传输下行控制信息的方法，其特征在于，所述方法包括：
    终端设备确定用于传输第一控制信息的多个候选资源集；
    所述终端设备在所述多个候选资源集中，检测网络设备发送的所述第一控制信息；
    所述终端设备根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集；
    所述终端设备根据所述目标资源集和第一映射关系，确定与所述目标资源集对应的目标控制信道资源，所述第一映射关系用于表示所述多个候选资源集与多个控制信道资源之间的对应关系；
    所述终端设备在所述目标控制信道资源中，检测网络设备发送的第二控制信息。
  2. 根据权利要求1所述的方法，其特征在于，所述目标控制信道资源上用于传输所述第二控制信息的波束，与所述目标资源集上用于发送所述第一控制信息的波束相同。
  3. 根据权利要求1或2所述的方法，其特征在于，所述终端设备根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集，包括：
    所述终端设备在所述多个候选资源集中的能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集。
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备在所述多个候选资源集中的能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集，包括：
    所述终端设备将所述至少一个资源集，确定为所述目标资源集。
  5. 根据权利要求3所述的方法，其特征在于，所述终端设备在所述多个候选资源集中的能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集，包括：
    所述终端设备根据所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源集。
  6. 根据权利要求5所述的方法，其特征在于，所述终端设备根据所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源 集，包括：
    所述终端设备在所述至少一个资源集中，确定信号接收质量最高的所述第一控制信息所对应的资源集，为所述目标资源集；或者
    所述终端设备在所述至少一个资源集中，确定信号接收质量大于或等于预设阈值的所述第一控制信息所对应的资源集，为所述目标资源集。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述多个候选资源集包括以下中的至少一种：
    物理资源集、序列资源集、控制信道资源集。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
  12. 一种传输下行控制信息的方法，其特征在于，所述方法包括：
    网络设备确定用于传输第一控制信息的多个候选资源集；
    所述网络设备在所述多个候选资源集中向终端设备发送所述第一控制信息，其中，每个候选资源集上用于发送所述第一控制信息的波束，与所述多个候选资源集中其他候选资源集上用于发送所述第一控制信息的波束是不相同的；
    所述网络设备确定与所述多个候选资源集对应的多个控制信道资源；
    所述网络设备在所述多个控制信道资源上，向所述终端设备发送第二控制信息，其中，每个控制信道资源上用于发送所述第二控制信息的波束，与在所述每个控制信道对应的候选资源集上用于传输所述第一控制信息的波 束相同。
  13. 根据权利要求12所述的方法，其特征在于，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
  14. 根据权利要求12或13所述的方法，其特征在于，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
  15. 根据权利要求12至14中任一项所述的方法，其特征在于，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
  16. 根据权利要求12至15中任一项所述的方法，其特征在于，所述多个候选资源集包括以下中的至少一种：
    物理资源集、序列资源集、控制信道资源集。
  17. 根据权利要求12至16中任一项所述的方法，其特征在于，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
  18. 一种终端设备，其特征在于，所述终端设备包括：
    确定单元，用于确定用于传输第一控制信息的多个候选资源集；
    检测单元，用于在所述多个候选资源集中，检测网络设备发送的所述第一控制信息；
    所述确定单元还用于，根据所述第一控制信息的检测结果，在所述多个候选资源集中确定目标资源集；
    所述确定单元还用于，根据所述目标资源集和第一映射关系，确定与所述目标资源集对应的目标控制信道资源，所述第一映射关系用于表示所述多个候选资源集与多个控制信道资源之间的对应关系；
    所述检测单元还用于，在所述目标控制信道资源中，检测网络设备发送的第二控制信息。
  19. 根据权利要求18所述的终端设备，其特征在于，所述目标控制信道资源上用于传输所述第二控制信息的波束，与所述目标资源集上用于发送所述第一控制信息的波束相同。
  20. 根据权利要求18或19所述的终端设备，其特征在于，所述确定单元具体用于：
    在所述多个候选资源集中能够检测到所述第一控制信息的至少一个资源集中，确定所述目标资源集。
  21. 根据权利要求20所述的终端设备，其特征在于，所述确定单元具体用于：
    将所述至少一个资源集，确定为所述目标资源集。
  22. 根据权利要求20所述的终端设备，其特征在于，所述确定单元具体用于：
    根据所述第一控制信息的信号接收质量，在所述至少一个资源集中确定所述目标资源集。
  23. 根据权利要求21所述的终端设备，其特征在于，所述确定单元具体用于：
    在所述至少一个资源集中，确定信号接收质量最高的所述第一控制信息所对应的资源集，为所述目标资源集；或者
    在所述至少一个资源集中，确定信号接收质量大于或等于预设阈值的所述第一控制信息所对应的资源集，为所述目标资源集。
  24. 根据权利要求18至23中任一项所述的终端设备，其特征在于，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
  25. 根据权利要求18至24中任一项所述的终端设备，其特征在于，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
  26. 根据权利要求18至25中任一项所述的终端设备，其特征在于，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
  27. 根据权利要求18至26中任一项所述的终端设备，其特征在于，所述多个候选资源集包括以下中的至少一种：
    物理资源集、序列资源集、控制信道资源集。
  28. 根据权利要求18至27中任一项所述的终端设备，其特征在于，所 述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
  29. 一种网络设备，其特征在于，所述网络设备包括：
    确定单元，用于确定用于传输第一控制信息的多个候选资源集；
    发送单元，用于在所述多个候选资源集中向终端设备发送所述第一控制信息，其中，每个候选资源集上用于发送所述第一控制信息的波束，与所述多个候选资源集中其他候选资源集上用于发送所述第一控制信息的波束是不相同的；
    所述确定单元还用于，确定与所述多个候选资源集对应的多个控制信道资源；
    所述发送单元还用于，在所述多个控制信道资源上，向所述终端设备发送第二控制信息，其中，每个控制信道资源上用于发送所述第二控制信息的波束，与在所述每个控制信道对应的候选资源集上用于传输所述第一控制信息的波束相同。
  30. 根据权利要求29所述的网络设备，其特征在于，所述第一控制信息是通过物理控制信息格式指示信道PCIFCH或者公共搜索空间中的下行控制信息DCI传输的控制信息。
  31. 根据权利要求29或30所述的网络设备，其特征在于，所述第一控制信息指示当前时域资源单元中用于传输控制信息的时域资源大小，或者所述第一控制信息指示当前时域资源单元中用于传输所述第二控制信息的时域资源大小。
  32. 根据权利要求39至31中任一项所述的网络设备，其特征在于，所述第二控制信息是通过公共搜索空间中的DCI或者终端设备的专属搜索空间中的DCI传输的控制信息。
  33. 根据权利要求29至32中任一项所述的网络设备，其特征在于，所述多个候选资源集包括以下中的至少一种：
    物理资源集、序列资源集、控制信道资源集。
  34. 根据权利要求29至33中任一项所述的网络设备，其特征在于，所述多个候选资源集中的不同候选资源集占用不同的频域资源和/或不同的正交频分复用OFDM符号。
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