WO2018171729A1 - 一种控制信息发送、接收方法及相关设备 - Google Patents

一种控制信息发送、接收方法及相关设备 Download PDF

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Publication number
WO2018171729A1
WO2018171729A1 PCT/CN2018/080251 CN2018080251W WO2018171729A1 WO 2018171729 A1 WO2018171729 A1 WO 2018171729A1 CN 2018080251 W CN2018080251 W CN 2018080251W WO 2018171729 A1 WO2018171729 A1 WO 2018171729A1
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Prior art keywords
control information
terminal device
physical layer
layer control
index
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PCT/CN2018/080251
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English (en)
French (fr)
Inventor
吕永霞
马蕊香
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112019019717A priority Critical patent/BR112019019717A2/pt
Priority to EP18772112.1A priority patent/EP3592030B1/en
Publication of WO2018171729A1 publication Critical patent/WO2018171729A1/zh
Priority to US16/577,941 priority patent/US11197283B2/en

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    • 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
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • 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

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and a device for controlling information transmission and reception.
  • the fifth-generation mobile communication technology (English: 5th-Generation, abbreviated as 5G) is an extension of the fourth-generation mobile communication technology (English: 4th-Generation, 4G for short) that is currently being advanced, and is under research.
  • 5G needs to support various services in the future, for example, Enhanced Mobile Broadband (eMBB) services, ultra-reliable and low-latency communication (Ultra-reliable) /low latency communication, URLLC) services, Massive machine-type communication (Massive MTC) services, etc., in which eMBB services have higher requirements on transmission rate, signal coverage, transmission delay, mobility, etc., such as High-traffic mobile broadband services such as 3D/Ultra HD video; URLLC services require high reliability, mobility and transmission delay, such as driverless, industrial automation, etc., which require low latency and high reliability connection services; Massive MTC service to the unit The number of regional connections (connection density) and signal coverage are high, such as
  • the technical problem to be solved in the embodiments of the present application is to provide a method for transmitting and receiving control information and related devices, which solves the technical problem that the service scheduling is inflexible in the prior art and in the 5G scenario.
  • the embodiment of the present application provides a method for sending control information, which may include:
  • the network device sends the first physical layer control information to the first terminal device, where the first physical layer control information is used to indicate the first index to the first terminal device, and is used to indicate that the first terminal device is in the first Monitoring, by the first terminal device, the control information field corresponding to the first terminal device in the second physical layer control information;
  • the network device sends the second physical layer control information to the at least one terminal device in the first time period, the at least one terminal device includes the first terminal device, and the second physical layer control information includes at least a control information field, the at least one control information field including a first control information field, the first control information field instructing the first terminal device to receive or transmit data, or the first control information field indicating the first
  • the at least one control information field including a first control information field, the first control information field instructing the first terminal device to receive or transmit data, or the first control information field indicating the first
  • a terminal device receives or transmits data or does not perform data transmission and reception.
  • the control information can be divided into two levels: dedicated first physical layer control information and common second physical layer control information to perform control scheduling, and a two-level control channel in which a dedicated channel and a common channel coexist is formed.
  • the first physical layer control information and the second physical layer control information are separately transmitted, the timing of the transmission of the two-level control information, the transmitted resources, the content of the included control information, and the range of the indicated terminal device are determined.
  • Different possibilities can be arranged, and even multiple combinations are possible, so that the possibility of multiple scheduling modes can be generated under the service scheduling framework, and the flexibility of scheduling is increased, thereby meeting different requirements of different services.
  • the sending, by the network device, the second physical layer control information to the at least one terminal device in the first time period that: the network device sends the information in a common search space in the first time period
  • the second physical layer controls information, the common search space being common to the at least one terminal device or a search space common to the serving cell.
  • the common second physical layer control information can be sent to multiple terminal devices by using a common search space, which is convenient for saving resource overhead.
  • the at least one terminal device belongs to the first terminal device group; the first physical layer control information is further used to indicate a first group index, and the first group index is used to identify the first terminal device group .
  • multiple terminal devices that need to receive the second physical layer control information may be identified by using the first group of indexes.
  • the second physical layer control information is scrambled by the first scrambling code sequence, and the first scrambling code sequence is calculated by at least the first group index or the cell ID.
  • the terminal device can monitor and receive the corresponding second physical layer control information according to the obtained first group index or cell ID.
  • the first physical layer control information includes resource indication information, where the first control information field indicates that the first terminal device receives or sends data by using the resource indicated by the resource indication information, where the resource includes Frequency domain resources, or time domain resources or time-frequency resources.
  • the resource indication information for performing data transmission is included in the first physical layer control information, thereby avoiding the overhead that the resource indication information may need to be sent multiple times in the second physical layer control information.
  • the first physical layer control information includes a first field, where the first field includes a coded modulation scheme indication field, a new data indication field, a redundancy version indication field, a transmission power control TPC indication field, and a hybrid automatic weight. Transmitting at least one of the requesting HARQ process number indication fields; the first physical layer control information is used to indicate the first index to the first terminal device, including: the first physical layer control information is used by using The first field indicates the first index.
  • the method further includes: configuring, by the network device, a maximum value of the first index by using high layer signaling; or
  • the network device is configured to indicate, by using the high layer signaling, a number of bits or a valid number of bits included in a field corresponding to the first index.
  • the method further includes: the network device pre-defining the first time period; or the network device configuring the first time period by using high layer signaling; or the network device adopting the first time
  • the physical layer control information indicates the first time period.
  • the at least one terminal device includes X terminal devices, and the at least one control information field includes Y control information fields, where X and Y are positive integers; if Y is equal to X, the Y controls The information field is in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the first control information field indicates that the first terminal device receives or Sending data or not transmitting and receiving data; if Y is less than X, the first control information field indicates that the first terminal device receives or transmits data; if Y is greater than X, the first control information field indicates the first The terminal device receives or transmits data or does not perform data transmission and reception.
  • the X terminal devices further include a second terminal device; the method further includes: the network device sending third physical layer control information to the second terminal device, where the third physical layer controls The information is used to indicate the second index to the second terminal device, and is used to indicate that the second terminal device monitors fourth physical layer control information in a second time period, where the second index is used by the second terminal
  • the device determines a control information field corresponding to the second terminal device in the fourth physical layer control information, where the fourth physical layer control information is coincident with the first time period and the second time period
  • the second time period is the second physical layer control information; in the third time period, if the Y is smaller than the X, and the Y control information field does not include the second terminal device
  • Corresponding control information field the second physical layer control information indicates that the second terminal device does not perform data transmission and reception.
  • the method further includes: the network device pre-defining a value of the Y, where the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception; or The network device sends high layer signaling to the first terminal device, where the high layer signaling is used to indicate the value of the Y.
  • the first physical layer control information further includes a first parameter set, where the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and a redundancy. a version RV index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, the first index, and the first time period; the first control information field indicating the first A terminal device receives or transmits data according to the first transmission related information.
  • MCS index modulation and coding scheme
  • a hybrid automatic repeat request process a HARQ process index
  • a new data indication NDI new data indication
  • redundancy a version RV index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, the first index, and the first time period
  • the first control information field indicating the first
  • a terminal device receives or transmits data according to
  • the first physical layer control information further includes second transmission related information, where the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index DAI.
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index DAI.
  • the second physical layer control information further includes a third parameter set; the third parameter set includes a HARQ confirmation index, a HARQ process index, and new data At least one of an NDI, a redundancy version RV index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, and a downlink assignment index DAI; the first control information field indicating that the first terminal device is according to the second The set of parameters and the third set of parameters receive or transmit data.
  • the embodiment of the present application provides a method for receiving control information, which may include:
  • the first terminal device receives the first physical layer control information sent by the network device, where the first physical layer control information indicates the first index, and the first terminal device is instructed to monitor the second physical layer control information in the first time period,
  • the first index corresponds to the first terminal device in the first time period
  • the second physical layer control information includes at least one control information field, and the at least one control information field And including a first control information field, where the first control information field indicates that the first terminal device receives or sends data, or the first control information field indicates that the first terminal device receives or sends data or does not perform data.
  • the receiving, by the first terminal device, the second physical layer control information that is sent by the network device in the first time period that: the first terminal device receives the location in the first time period
  • the first physical layer control information includes resource indication information
  • the method further includes: the first terminal device receiving or sending, according to the first control information field, the resource indicated by the resource indication information.
  • the resource includes a frequency domain resource, or a time domain resource or a time-frequency resource.
  • the first physical layer control information further indicates a first group of indexes; the method further includes: determining, by the first terminal device, the first terminal device group that is located by the first terminal device according to the first group of indexes.
  • the second physical layer control information is scrambled by the first scrambling code sequence, and the first scrambling code sequence is calculated by at least the first group index or the cell ID.
  • the first terminal device group includes X terminal devices, and the at least one control information field includes Y control information fields, where X and Y are positive integers; if Y is equal to X, the Y terminal devices The control information field is in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the first control information field indicates that the first terminal device receives Or sending or not transmitting data; if Y is less than X, the first control information field indicates that the first terminal device receives or transmits data; if Y is greater than X, the first control information field indicates the first A terminal device receives or transmits data or does not perform data transmission and reception.
  • the first physical layer control information further includes a first parameter set;
  • the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and a redundancy.
  • the first physical layer control information further includes a second parameter set;
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, At least one of the first index and the first time period;
  • the second physical layer control information further includes a third parameter set;
  • the third parameter set includes a HARQ acknowledgement index, a new data indication At least one of an NDI, a redundancy version RV index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index DAI;
  • the method further includes: the first terminal device according to the first control information field And receiving, or transmitting, the second parameter set and the third parameter set.
  • the method further includes: the first terminal device monitoring the first physical layer control information by using M time domain units as a period, and monitoring the second physical layer by using N time domain units as a period Control information, where M and N are positive integers greater than or equal to 1, and M is greater than N.
  • the present application provides a network device, which has the function of implementing the method in the foregoing method for transmitting control information.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the present application provides a terminal device, which has a function of implementing the method in the foregoing method for receiving control information.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the application provides a network device, where the network device includes a processor, and the processor is configured to support the network device to perform a corresponding function in a method for transmitting control information provided by the first aspect.
  • the network device can also include a memory for coupling with the processor that retains the program instructions and data necessary for the network device.
  • the network device can also include a communication interface for the network device to communicate with other devices or communication networks.
  • the application provides a terminal device, where the terminal device includes a processor, and the processor is configured to support the terminal device to perform a corresponding function in a control information receiving method provided by the second aspect.
  • the terminal device can also include a memory for coupling with the processor that holds the necessary program instructions and data for the terminal device.
  • the terminal device may also include a communication interface for the terminal device to communicate with other devices or communication networks.
  • the present application provides a computer storage medium for storing computer software instructions for use in the network device provided by the fifth aspect, comprising a program designed to perform the above aspects.
  • the present application provides a computer storage medium for storing computer software instructions for a terminal device provided by the sixth aspect, which includes a program designed to perform the above aspects.
  • the embodiment of the present application provides a computer program, where the computer program includes instructions, when the computer program is executed by a computer, to enable a computer to execute the flow in the control information sending method of any one of the foregoing first aspects. .
  • the embodiment of the present application provides a computer program, where the computer program includes instructions, when the computer program is executed by a computer, to enable a computer to execute the flow in the control information receiving method of any one of the foregoing second aspects. .
  • the first physical layer control information includes a second field, where the first physical layer control information is further used to indicate the first group of indexes, where the network device is in the first physical layer control information.
  • the first set of indices is indicated by reusing the second preset field.
  • the network device indicates the first index by using a time-frequency resource location used by the first physical layer control information to send the first physical layer control information.
  • the network device indicates the first index by sending a control resource set in which the first CCE or the REG is located in the specified control resource set in the first physical layer control information, or by using the first physical
  • the control resource set in which the first CCE or REG is sent in the specified control resource set in the layer control information indicates the first group index.
  • the network device configures a maximum value of the first group of indexes by using the high layer signaling, or the network device is configured by the high layer signaling to indicate the number of bits or the number of valid bits included in the field corresponding to the first group of indexes.
  • the first physical layer control information is sent to the first terminal device by using the network device
  • the second physical layer control information is sent to the at least one terminal device including the first terminal device in the first time period, thereby And at least one control information field (including the first control information field) included in the second physical layer control information, instructing the first terminal device to perform data transmission and reception, or instructing the first terminal device to perform data transmission or reception or not performing data Send and receive.
  • the first physical layer control information indicates the first index to the first terminal device, and indicates that the first terminal device monitors the second physical layer control information in the first time period and determines the second physical layer control information by using the first index.
  • the control information field corresponding to itself, and finally decide whether to schedule.
  • the network device sends the dedicated first physical layer control information to the first terminal device, and the first terminal device is notified in advance to monitor the first terminal device in the first time period. Corresponding second physical layer control information. Then, in the first time period of the notification, the public second physical layer control information is sent to the at least one terminal device including the first terminal device, and the first terminal device is specifically informed whether the final service scheduling is to be performed. That is to say, the present application provides an overall service scheduling framework, which divides control information into dedicated first physical layer control information and common second physical layer control information for control scheduling, forming a proprietary channel and a common channel coexisting. Two-stage control channel.
  • the timing of the transmission of the two-level control information, the transmitted resources, the content of the included control information, and the range of the indicated terminal device are determined. Different possibilities can be arranged, and even multiple combinations are possible, so that the possibility of multiple scheduling modes can be generated under the service scheduling framework, and the flexibility of scheduling is increased, thereby meeting different requirements of different services.
  • FIG. 1 is a schematic diagram of a specific application scenario of transmitting eMBB and URLLC in the same time domain unit according to an embodiment of the present application;
  • FIG. 2 is a structural diagram of a communication network provided by an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for sending and receiving control information according to an embodiment of the present application
  • FIG. 4 is a monitoring sequence diagram of first physical layer control information and second physical layer control information provided by an embodiment of the present application
  • FIG. 5 is a monitoring sequence diagram of another first physical layer control information and second physical layer control information provided by an embodiment of the present application;
  • FIG. 6 is a monitoring timing diagram of still another first physical layer control information and second physical layer control information provided by an embodiment of the present application;
  • FIG. 7 is a monitoring timing diagram of still another first physical layer control information and second physical layer control information according to an embodiment of the present application.
  • FIG. 8 is a monitoring timing diagram of still another first physical layer control information and second physical layer control information according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a specific application scenario of a method for sending and receiving control information according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another specific application scenario of a method for sending and receiving control information according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of still another specific application scenario of a method for transmitting and receiving control information according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunication System
  • next-generation communication system such as 5G communication system.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • Embodiments of the present invention describe various embodiments in conjunction with a transmitting device and a receiving device, wherein:
  • 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.
  • the terminal device may be a site (STAION, referred to as "ST") in a Wireless Local Area Networks (“WLAN”), and may be a cellular phone, a cordless phone, or a Session Initiation Protocol ("SIP").
  • STAION Wireless Local Area Networks
  • SIP Session Initiation Protocol
  • PDA Personal Digital Assistant
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • handheld device with wireless communication function computing device or other connected to wireless modem Processing devices, in-vehicle devices, wearable devices, and next-generation communication systems, for example, terminal devices in a fifth-generation (5G) network or a public land mobile network (Public Land Mobile Network) Referred to as "PLMN" for short, etc. in the network.
  • 5G fifth-generation
  • PLMN Public Land Mobile Network
  • the terminal device may also be a wearable device.
  • a wearable device which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.
  • the network device may be a device for communicating with the mobile device, such as a network device, and the network device may be an access point (APCESS POINT, AP) in the WLAN, or a base station (Base Transceiver Station, "BTS”) in GSM or CDMA. It may also be a base station (NodeB, referred to as "NB") in WCDMA, or an evolved base station (Evolutional Node B, "eNB” or “eNodeB”) in LTE, or a relay station or an access point, or an in-vehicle device. , wearable devices, and network devices in the future 5G network (g Node B, referred to as “gNB” or “gNodeB”) or network devices in the future evolved PLMN network.
  • the network device provides a service for the cell
  • the terminal device communicates with the network device by using a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell
  • a transmission resource for example, a frequency domain resource, or a spectrum resource
  • the cell may be a network device.
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell, where the small cell may include: a metro cell, a micro cell, and a pico cell. (Pico cell), femto cell, etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • multiple carriers can work at the same frequency on the carrier in the LTE system or the 5G system.
  • the concept of the carrier and the cell can be considered to be equivalent.
  • CA carrier aggregation
  • the carrier index of the secondary carrier and the cell identifier (Cell ID) of the secondary cell working in the secondary carrier are simultaneously carried.
  • the carrier can be considered to be equivalent to the concept of the cell, for example, the terminal device accessing one carrier and accessing one cell are equivalent.
  • the method and related device provided by the embodiments of the present invention may be applied to a terminal device or a network device, where the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (“CPU"), a memory management unit (MMU), and a memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, contacts, word processing software, and instant messaging software.
  • the specific structure of the execution subject of the method of transmitting control information is not particularly limited as long as the program capable of running the code of the method of transmitting the control information of the embodiment of the present invention can be executed.
  • the method for transmitting the control information according to the embodiment of the present invention may be a terminal device or a network device, or may be a terminal device or a network device. Call the program and execute the function module of the program.
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media.
  • the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disk (eg, a compact disc (“CD”), a digital versatile disc (Digital Versatile Disc) , referred to as "DVD”), etc., smart cards and flash memory devices (for example, Erasable Programmable Read-Only Memory (“EPROM”), cards, sticks or key drivers, etc.).
  • EPROM Erasable Programmable Read-Only Memory
  • various storage media described herein can represent one or more devices and/or other machine readable media for storing information.
  • machine-readable medium may include, without limitation, a wireless channel and various other mediums capable of storing, containing, and/or carrying instructions and/or data.
  • a data frame is a protocol data unit of the data link layer, which includes three parts: a frame header, a data portion, and a frame tail.
  • the frame header and the end of the frame contain some necessary control information, such as synchronization information, address information, error control information, etc., and the data part includes data transmitted from the network layer, such as an IP data packet.
  • PDCCHs Physical Downlink Control Channels
  • One PDCCH consists of n consecutive CCEs.
  • the aggregation level indicates the continuity of one PDCCH.
  • the number of CCEs is n.
  • Multiple means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or" relationship.
  • a 5G application scenario in which the technical problem can be solved in the present application is proposed.
  • different types of services need to be supported at the same time, for example, the URLLC service and the eMBB service are supported at the same time, but the URLLC service has a significantly higher delay requirement than the eMBB service, so the single transmission time required by the URLLC service is required. (ie the transmission time of a transport block) should be significantly less than the single transmission time required by the eMBB service.
  • the URLLC service may need to wait for the eMBB data to be transmitted before being scheduled, which may cause the URLLC service to be sent or has just been scheduled to exceed the delay requirement (timeout is the transmission failure).
  • timeout is the transmission failure.
  • the extremely high reliability requirements of URLLC cannot be met at this time.
  • the method of reserving the frequency domain that is, only the reserved frequency domain resource is used for the URLLC service, and the eMBB service is not scheduled by the frequency domain resource, in order to meet the transmission reliability requirement of the partially randomized service in the URLLC service, It is necessary to reserve a sufficiently wide frequency domain resource (a time-frequency resource capable of guaranteeing the transmission reliability of all packets arriving at the peak), which causes significant waste of resources.
  • the technical problem to be solved by the present application is how to efficiently coexist the URLLC service and the eMBB service through an effective scheduling method, and the present application mainly discusses a method for scheduling eMBB and URLLC services by using the same or similar time domain units as scheduling units.
  • the present application mainly discusses a method for scheduling eMBB and URLLC services by using the same or similar time domain units as scheduling units.
  • the single-transmission time required by the URLLC service is significantly smaller than that of the eMBB service, if the eMBB service and the URLLC service are the same or similar, and the time-domain unit that satisfies the transmission delay and reliability requirements of the URLLC service is scheduled, it must also be It can meet the requirements of eMBB service for transmission delay and reliability. Moreover, the waiting time of the URLLC service data packet can be reduced at the same time, thereby reducing the transmission delay of the URLLC data packet. That is, the transmission delay and reliability requirements of eMBB and URLLC coexistence are finally satisfied at the same time. For details, refer to FIG. 1. FIG.
  • FIG. 1 is a schematic diagram of a specific application scenario of transmitting eMBB and URLLC in the same time domain unit according to an embodiment of the present disclosure.
  • FIG. 1 shows five identical time domain units (such as a time domain symbol).
  • the eMBB service and the URLLC service are respectively scheduled in the same time domain unit, and can satisfy the transmission delay when the URLLC arrives randomly, that is, meet the requirements of the transmission delay and reliability of the eMBB and the URLLC service.
  • the problem with the above scheduling method is that the time domain scheduling unit capable of satisfying the URLLC data transmission delay requirement is inevitably significantly smaller than the time domain scheduling unit normally used for scheduling eMBB data, and the eMBB data transmission is scheduled using an excessively small time domain unit.
  • the overhead of the control information for scheduling transmission may be increased, thereby reducing the efficiency of using the time-frequency resources of the eMBB service. For example, if the eMBB data transmission is scheduled in 1 ms time domain units, the time-frequency resource ratio for carrying the scheduling-related control information is usually 20%, and when the scheduled time domain unit is reduced, for example, from 1 ms to 0.125 ms.
  • the proportion of time-frequency resources used to carry scheduling-related control information will increase to 50%.
  • the eMBB terminal device may need to monitor relevant scheduling control information in time-domain units, thereby increasing the number of times the eMBB terminal device monitors control information. , in turn, increase the power consumption of the eMBB terminal device.
  • how to minimize the overhead for carrying control information and reduce the power consumption of the eMBB terminal device is mainly solved by the present application.
  • the present application solves the problem that the scheduling control information generated when the URLLC service and the eMBB service coexist efficiently coexist, the time-frequency resource overhead is excessive, but the present application can also be applied to other scenarios.
  • the implementation method of the present application can effectively reduce the proportion of time-frequency resources used for carrying control information to total time-frequency resources (relative to time-domain scheduling units). Control information for scheduling). In this case, the usage scenario of the present application is not limited to a small time domain scheduling unit.
  • the time-frequency resources that can be used in an LTE authorized-assisted access (LAA) application scenario are uncertain.
  • the implementation method of the present application can provide more flexible scheduling for the LAA application scenario, and reduce the proportion of time-frequency resources used for carrying control information to the total time-frequency resources.
  • the antenna adopts a narrow beam service terminal device. In order to increase the coverage (service) range, the antenna changes the direction of the transmitting beam with time, and each beam continues. Shorter time (such as one or several time domain symbols). The shorter duration of each beam is similar to the foregoing smaller time domain scheduling unit.
  • the implementation method of the present application can effectively reduce the proportion of time-frequency resources used for carrying control information to the total time-frequency resources.
  • the dedicated first physical layer control information may be used to provide a dedicated channel for the terminal device to notify the terminal device of the control information content that is private or has security requirements, and provides a common channel when the public control information is needed.
  • the terminal device with similar scheduling and timing sends common control information, which can reduce the verification or transmission resources, which not only ensures the security of the scheduling but also saves related resources.
  • the application scenario in which the URLLC service coexists with the eMBB service is only an example, and the implementation method of the present application is not limited thereto.
  • time domain unit in the present application may be a time domain symbol, a minislot, a time slot or a subframe, etc., which is not specifically limited in this application. It should be specially noted that the time length of the mini-slot (ie, the number of time-domain symbols) may be fixed or flexible.
  • FIG. 2 is a structural diagram of a communication system according to an embodiment of the present application.
  • the communication system architecture includes a network device and a terminal device, where the network device performs resource scheduling for the accessed terminal device by way of example and not limitation.
  • the terminal device uses the network device to perform data transmission for its scheduled resources, wherein
  • the terminal device may be a user-side device in the communication system, may support an eMBB service, or support a URLLC service, or simultaneously support an eMBB service and a URLLC service. And the resources used by the terminal device in communication are scheduled by the network device.
  • the network device may be a network element on the network side of the 5G communication system, for example, may be a gNB in a 5G communication system.
  • the network device may send the first physical layer control information to all the terminal devices in the terminal device group to allocate a temporary identification identifier.
  • the network device may also send second physical layer control information to some or all of the terminal device groups.
  • the first physical layer control information may carry the fixed transmission scheduling control information of the terminal device within the valid time range, and the second physical layer control information carries the flexible change and finally determines whether the terminal device actually performs. Transmission scheduling control information.
  • the first physical layer control information is used to inform the terminal device which time-frequency location to use during the valid time, and what modulation and coding strategy is used for data transmission.
  • the timing of the random arrival of the URLLC service in the present application is uncertain, the resources that are pre-assigned to the terminal device in the first physical layer control information need to have the "let a pass" priority for the URLLC service to be transmitted. To ensure the transmission delay requirements of the service. Therefore, it is required to notify the terminal device in real time through the second physical layer control information whether the terminal device can actually perform scheduling at the resource location indicated in the first physical layer control information, or perform some adjustment according to actual conditions and then perform scheduling.
  • the second physics is utilized.
  • the layer control information is flexibly scheduled in real time, which not only saves the overhead of sending control information on each domain unit, but also satisfies the delay requirement of random service interspersed.
  • the communication system involved in the present application may include an LTE system and a future evolution system of the LTE system, or may be a 5G wireless access (New Radio Access Technology in 3GPP, NR) system, referred to as a 5GNR system.
  • NR New Radio Access Technology in 3GPP, NR
  • the communication system architecture in FIG. 2 is only an exemplary implementation manner in the embodiment of the present application.
  • the communication system architecture in the embodiment of the present application includes, but is not limited to, the above communication system architecture.
  • the terminal device is shipped with at least one globally unique identifier, such as an IMSI (International Mobile Subscriber Identity) identifier or an IMEI (International Mobile Equipment Identity) identifier, which is represented by a binary number of 48 bits or more.
  • IMSI International Mobile Subscriber Identity
  • IMEI International Mobile Equipment Identity
  • the network device specifies a unique terminal device identifier for the terminal device, and the terminal device identifier is at least in the current network.
  • the device service is valid within the cell. That is to say, in the cell served by the current network device, the terminal device identifier is in one-to-one correspondence with the terminal device.
  • the terminal device identifier may be a Radio Network Tempory Identity (RNTI), or may be another identifier that can uniquely identify the terminal device in the cell.
  • the terminal device identification is represented by 16 bits or more of binary bits.
  • the terminal device #1 has a unique identifier that is valid at least in the current cell (for simplicity of description, referred to as identification #1), and a globally unique identifier (referred to as identification #2).
  • the terminal device #1 can determine whether the received control information is its own control information according to its own identification #1 or identification #2. For example, the network device scrambles the Cyclic Redundancy Check (CRC) bit of the control information sent to the terminal device #1 using the identifier #1, and the terminal device descrambles the CRC using the identifier #1, and descrambles After the CRC bit is used to determine that the received information bits in the control information are received correctly, the terminal device determines that the control information is sent by the network device to itself.
  • CRC Cyclic Redundancy Check
  • the principle and process of determining the control information of the terminal device #1 by using the identifier #1 are similar to the method for the terminal device in the existing LTE system to determine the PDCCH for sending to itself. And how to determine the principle and process of the control information by using the identifier #2 is in a non-connected state (such as the IDLE state) in the existing LTE system, and determine whether the paging message (PAGING) sent by the network device is sent to itself.
  • the method is similar and will not be described here. It can be understood that regardless of whether the terminal device #1 identifies its own control information by using the above identifier #1 or the identifier #2, a large overhead is generated because the identifier #1 and the identifier #2 are at least 16 bits or more.
  • the number of bits is relatively large, so the overhead generated by the identity itself is very obvious. Because of the foregoing analysis, in order to achieve efficient coexistence of the eMBB service and the URLLC service, a smaller time domain scheduling unit (such as a time domain symbol, a minislot, a time slot, or a subframe) needs to be used, and the control information is It is distributed in each time domain scheduling unit, so if the number of bits of the identifier #1 and the identifier #2 is large, the resource overhead is seriously wasted.
  • the embodiment of the present application will indicate a temporary index #1 for the terminal device #1 in the control information #1, where "temporary" means starting to receive the control information #1 from the terminal device (or, control information #1)
  • temporary means starting to receive the control information #1 from the terminal device (or, control information #1)
  • index #1 is valid for a period of time, that is, the control information indicated by index #1 during the duration is control information transmitted to terminal device #1, and/or indicated by index #1
  • the transmission data is data transmitted to the terminal device #1 or data transmitted by the terminal device #1.
  • the control information transmitted to the terminal device #1 is related to the index #1, and/or the control information and index for indicating that the terminal device #1 receives the data or instructs the terminal device #1 to transmit the data. 1 related.
  • the embodiment of the present application reduces the number of bits of the identification identifier of the terminal device that must be used when transmitting the relevant control information (for example, temporarily replacing the identifier #1 or the identifier #2 with the index #1), thereby reducing the overhead for carrying the control information. And reducing the power consumption of the eMBB terminal device, and finally achieving efficient coexistence of the eMBB service and the URLLC service.
  • the present invention also includes other embodiments for reducing the control information overhead.
  • a resource that is fixed in a certain period of time such as a time-frequency resource, is transmitted once in the first physical layer control information, and the flexible and actual scheduling is performed.
  • the information is included in the shared second physical layer control information, and the overhead caused by multiple transmissions of the repeated resources is avoided.
  • FIG. 3 is a schematic flowchart of a control information processing method according to an embodiment of the present application, which can be applied to the communication system described in FIG. 2, and the interaction side between the network device and the terminal device will be described below with reference to FIG.
  • the method may include the following steps S301 to S303, and optionally may further include step S304.
  • Step S301 The network device sends the first physical layer control information to the first terminal device, where the first terminal device receives the first physical layer control information sent by the network device.
  • the first physical layer control information is used to indicate the first index to the first terminal device, and is used to instruct the first terminal device to monitor the second physical layer control information in the first time period, where the first index is in the first time period.
  • the first terminal device Corresponding to the first terminal device, and configured to determine, by the first terminal device, a control information field corresponding to the first terminal device in the second physical layer control information.
  • the first terminal device (abbreviated as terminal device #1) is a terminal device that has accessed a serving cell served by the network device.
  • the first terminal device has obtained the user ID in the serving cell.
  • the user ID may be the identifier 1 above, and more specifically, may be an RNTI.
  • the network device indicates the first index (abbreviated as index #1) to the terminal device #1 through the first physical layer control information (abbreviated as control information #1), wherein the indication manner may be display or implicit, The application does not specifically limit this.
  • This control information #1 is user-specific (UE-specific) control information. That is, the control information #1 is control information uniquely transmitted by the network device to the terminal device #1.
  • Control information #1 is associated with the user ID of the terminal device #1.
  • the terminal device #1 determines that the control information #1 is transmitted by the network device to the terminal device #1 based on the user ID.
  • the display indication manner and the implicit indication manner may be included.
  • a field for indicating index #1 is included in the control information #1.
  • a dedicated field indication index #1 is included, the number of bits contained in the dedicated field being related to the number of maximum terminal devices that the network device can simultaneously support.
  • the "supporting the maximum number of terminal devices at the same time" may also refer to the peak value of the number of data packets that the network device can support.
  • the communication standard specifies that the maximum simultaneous support number is 32, and the dedicated field is 5 bits.
  • the maximum number of terminal devices that the network device can support at the same time can be configured by using Radio Resource Control (RRC) signaling, for example, configured as 16 or 8 terminal devices.
  • RRC Radio Resource Control
  • the other control information field indication index #1 in the control information #1 may be reused.
  • the first physical layer control information includes a first field, and the first physical layer control information indicates the first index to the first terminal device by reusing the first field.
  • the first field includes at least one of a coded modulation scheme indication field, a new data indication field, a redundancy version indication field, a transmission power control TPC indication field, and a HARQ process number indication field. Since the information field that can be reused is related to the other control information content of the control device #1 indicating the terminal device #1 other than the index #1, the specific embodiment of the reuse control information indicating the index #1 is described in detail later in the control information #1. Further explanation when the content.
  • the network device indicates that index #1 in an explicit manner facilitates terminal device #1 to accurately understand index #1.
  • the network device implicitly indicates through the control information #1 that the terminal device can indicate the index #1 through the used time-frequency resource location for transmitting the control information #1.
  • a network device can specify S control resource sets.
  • the maximum number of terminal devices that the network device can support is consistent, and the terminal device #1 is based on the first control information #1 received by the terminal device #1.
  • the control channel element (CCE) or the control resource set index in which the first Resource Element Group (REG) is located determines the index #1.
  • the terminal device #1 may determine that the network device indicates to the terminal device through the control information #1.
  • #1's index #1 is 2.
  • the terminal device #1 may determine that the network device indicates to the terminal device through the control information #1.
  • the index #1 of #1 is 4, that is, the control resource set index is in one-to-one correspondence with the index #1, but the one-to-one correspondence may be specified by the communication standard, or may be configured by the network device through the high layer signaling. Terminal device #1.
  • the terminal device #1 is located according to the first CCE or the first REG of the control information #1 it receives.
  • the control resource set index and the first CCE of the L starting points or the starting point corresponding to the first REG determine index #1. For example, if the first CCE or the first REG of the control information #1 received by the terminal device #1 is at the third CCE or REG starting point of the second control resource set, the terminal device #1 can determine that the network device passes the control.
  • the index #1 indicated by the information #1 to the terminal device #1 is (2-1)*L+(3-1).
  • the terminal device #1 can determine that the network device passes the control.
  • the information #1 indicates that the index #1 to the terminal device #1 is (2-1)*L+3.
  • the network device may further calculate the scrambling code by using the index #1 as the scrambling code calculation variable, and scramble the signal sent to the control information #1 of the terminal device #1 by using the calculated scrambling code to index the signal.
  • the network device calculates the scrambling code sequence by at least the above-described terminal device identification #1 or identification #2, and index #1; or calculates the scrambling code sequence at least by index #1.
  • the network device scrambles the CRC bit sequence of the control information #1 transmitted to the terminal device #1 using the calculated scrambling code, or scrambles the information bit sequence of the control information #1, or the control The information bits and CRC bits of message #1 are scrambled.
  • the method in which the network device indicates the index #1 in an implicit manner is advantageous for saving the time-frequency resources occupied by the control information #1.
  • the network device configures the maximum value of the first index by using the high layer signaling, or the network device is configured by the high layer signaling to indicate the number of bits or the number of valid bits included in the field corresponding to the first index.
  • the number of binary bits used to represent index #1 may be 2 bits, 3 bits, 4 bits, etc., which are configured by the network device through higher layer signaling, or may be predefined.
  • the network device configures the terminal device to indicate the binary bit of the index #1 through RRC signaling; the predefined may be pre-agreed by the communication standard, or the terminal device/network device is pre-defined at the factory.
  • the number of binary bits used to indicate index #1 can also be expressed as the maximum number of terminal devices that the network device simultaneously schedules/supports/serves during the validity period of the index #1 (ie, the first time period).
  • the maximum number of terminal devices is 8, which is equivalent to indicating (representing) the index #1 by three binary bits. Therefore, the above-mentioned high-level signaling configuration or the predefined index #1 may also be configured through high-level signaling or The maximum number of predefined terminal devices.
  • the maximum number of terminal devices that the network device simultaneously schedules/supports/serves may be the number of terminal devices that are scheduled/supported/served by one cell at the same time, or may be a group of terminal devices served by the network device. The maximum number of terminal devices in the group.
  • the first index is used to distinguish the indication in the preset time period.
  • the control information of different terminal devices can reduce the related time-frequency resource overhead (reducing the overhead of indicating the control information itself), and meet the requirements of eMBB and URLLC services for transmission delay and reliability, and realize efficient eMBB service and URLLC service. coexist.
  • the first terminal device belongs to the first terminal device group; the first physical layer control information is further used to indicate a first group index, and the first group index is used to identify the The first terminal device group.
  • the first terminal device determines, according to the first group index, the first terminal device group that is located by itself. That is, the network device may further indicate the first group index to the terminal device by using the first physical layer control information, so that the terminal device determines the terminal device group in which the terminal device is located according to the first group index.
  • the network device can indicate the group index #1 to the terminal device #1 in an explicit or implicit manner.
  • the network device may indicate the group index #1 by using a dedicated field or by reusing other fields.
  • the network device may indicate the group index #1 by using a dedicated field or by reusing other fields.
  • the network device may indicate the group index #1 and the index #1 to the terminal device #1 by scrambling or transmitting the control information #1 at a specific time-frequency position.
  • the scrambling code sequence is calculated at least by index #1 and group index #1; for example, by transmitting control information #1 in a certain control resource set to indicate group index #1, the first CCE is transmitted at a certain position of the set or REG indicates index #1; or conversely, the control resource set in which the first CCE or REG is located indicates group index #1, and index #1 is indicated by the first CCE or REG in the starting position in the control resource set.
  • the specific implementation details are similar to the above method of explicitly or implicitly indicating index #1, and the description is concise and will not be described herein.
  • the network device configures a maximum value of the first group of indexes by using the high layer signaling, or the network device is configured by the high layer signaling to indicate the number of bits or valid bits included in the field corresponding to the first group of indexes. number.
  • the network device uses the control information #1 to indicate only the index #1 to the terminal device #1, it corresponds to a different index in a certain period of time (for example, within one or several transmission time domain units).
  • the terminal device of #1 can be regarded as a group of terminal devices. That is, within a certain period of time, within the serving cell of the network device, there is only one set of terminal devices to which index #1 is assigned.
  • first index and the first group index are only illustrative examples, and may also be a first identifier and a second identifier, or a first device ID, a second device ID, and the like.
  • the index (or identifier, or device ID, etc.) is only used to identify the terminal device to which the index is assigned within the index effective time range (within the first time period).
  • the network device may be considered to be sent one-to-one to the first terminal device, and the terminal device group includes multiple
  • the network device can be considered to be simultaneously transmitted to multiple terminal devices in the terminal device group.
  • the following describes in detail how the network device uses the first physical layer control information to indicate the grouping of the terminal device to the terminal device, and how to determine which terminal devices are specifically included in the terminal device group, that is, how to group the terminal devices.
  • the network device sends the control channel to the terminal device, different aggregation levels are selected for different terminals according to the channel conditions of the different terminal devices to ensure the transmission reliability of the control channel.
  • the network device may select an aggregation level according to the terminal device with the worst transmission channel quality, so that the network device may send the same second physical layer control information to the terminal device of different transmission quality.
  • grouping the terminal devices of aggregation level 1 and aggregation level 2 into a group may send the second physical layer control information using aggregation level 2.
  • the terminal devices of the aggregation level 1 and the aggregation level 8 are grouped into a group, and the second physical layer control information can be transmitted using the aggregation level 8.
  • the network device transmitting the second physical layer control information to the terminal device of the aggregation level 1 by using the aggregation level 8 reduces the use efficiency of the time-frequency resource for transmitting the second physical layer control information. Therefore, the network device can allocate the terminal devices with the corresponding aggregation levels in a terminal device group, thereby increasing the use efficiency of the time-frequency resources for transmitting the second physical layer control information, so as to avoid sending the second physical layer. Control information is not wasted.
  • the network device may also group the terminal devices with similar service types into a group, and serve a terminal device with a similar service transmission requirement with a similar transmission scheduling frequency and transmission delay and transmission reliability.
  • the network device may further group the terminal devices that are close to the identifier #1 or the identifier #2, and facilitate the group index #1 to be indicated to the terminal device.
  • group index #1 is indicated only by a number of lower bits of the identifier #1 or the identifier #2.
  • the network device defines a first time period in advance; or the network device configures the first time period by using high layer signaling, such as RRC signaling; Or the network device explicitly indicates the first time period by using a control field in the first physical layer control information.
  • the communication standard may define in advance that the corresponding first time period of the control information #1 is 1 ms or 1 subframe or 1 time slot or the like.
  • the first time period may be a first time period in which the network device separately indicates to the first index (index #1) of the first terminal device (such as the terminal device #1); or the network device may simultaneously indicate the first index (index#) 1) and a first time period of the first group index (group index #1); or a first time period indicating that the first terminal device monitors the second physical layer control information. That is, the terminal device can monitor the control information #2 using the index #1 and the group index #1 within the indicated first time period.
  • the first time period in the application has multiple functions, one of which may be used to indicate the effective time range of the first index; and the second may be used to indicate the first index and the effective time range of the first group index;
  • the time range that can be used to indicate that the network device may send the second physical layer control information related to the first index and/or the first group index to the first terminal device, and the first terminal device monitors the second physical layer control information The time range.
  • the network device can indicate to the terminal device the number of time domain units (eg, F time domain units).
  • the F time domain units indicate that the time period from the time domain unit in which the control information #1 is located (that is, the time domain unit is the first time domain unit) to the Fth time domain unit is the first time period.
  • the F time domain units can indicate that the time domain unit in which the control information #1 is located (that is, the time domain unit is the first time domain unit) to the first time period.
  • the time period of the F downlink time domain unit positions is the first time period, and the specific meaning of the time domain unit has been described in the present application, and details are not described herein again.
  • the start of the F time domain units may be the first time domain unit after the time domain unit of the control information #1, or may be other calculated by the communication standard with the control information #1 as a reference point. Time domain unit.
  • the first time period in which the terminal device monitors the second physical layer control information and the fourth time period in which the first index takes effect may be different.
  • the first physical layer control information and the second physical layer control information are used to indicate that the terminal device sends data to the network device, that is, the first physical layer control information and the second physical layer control information are used to schedule uplink transmission.
  • the terminal device monitors the second physical layer control information according to the first index in the first time period, and transmits the data indicated by the first index according to the indication of the second physical layer control information in the fourth time period.
  • the starting position of the first time period is before the start position of the fourth time period in the time domain.
  • the second physical layer control information is sent earlier than the terminal device actually needs to use the first index for uplink data transmission. That is to say, the network device sends the second physical layer control information to the terminal device in advance, so that it performs uplink data transmission in the next or nearby time domain unit, so that it has a short period of "full preparation".
  • the first physical layer control information may be in the same control information format as the control information that is generally used for directly scheduling the terminal device to receive downlink data or send uplink data.
  • the control information generally used for directly scheduling the terminal device is similar to the physical downlink control channel used in the LTE system for scheduling the terminal device to receive downlink data or send uplink data, that is, the prior art that can be understood by those skilled in the art. This is not repeated here, and is hereinafter referred to as general scheduling control information.
  • the general scheduling control information indicates to the terminal device whether to transmit or receive the specific time-frequency resource location of the data when the scheduling terminal device transmits or receives data.
  • the first physical layer control information indicates the time-frequency resource to the terminal device by using the same method as the general scheduling control information.
  • the time domain range corresponding to the time-frequency resource that is, the effective time range (first time period) of the first index (or the first index and the first group index).
  • the frequency domain range corresponding to the time-frequency resource that is, the time domain unit corresponding to the second physical layer control information after the terminal device confirms that the second physical layer control information includes the indication information indicating that the downlink data is received or the uplink data is sent. Downlink data reception or uplink data transmission is performed in the corresponding frequency domain range.
  • the first physical layer control information may indicate the first index or the first index and the first to the terminal device by adopting the foregoing method for reusing the general scheduling control information field (such as an MCS field, an NDI field, a HARQ process field, or an RV field, etc.) Group index.
  • the general scheduling control information field such as an MCS field, an NDI field, a HARQ process field, or an RV field, etc.
  • Step S302 The network device sends the second physical layer control information to the at least one terminal device in the first time period; the first terminal device receives the information sent by the network device in the first time period.
  • the second physical layer controls the information.
  • the at least one terminal device includes the first terminal device, the second physical layer control information includes at least one control information field, and the at least one control information field includes a first control information field, where the first The control information field indicates that the first terminal device receives or transmits data, or the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the network device sends at least one control information field to at least one terminal device. Therefore, the number between the terminal device and the control field may not be equal. Assuming that at least one terminal device includes X terminal devices, at least one control information field includes Y control information fields, wherein X and Y are both positive integers, and then can be divided into the following three cases for discussion.
  • Case 1 If Y is equal to X, the Y control information fields are in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the A control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • Case 1 X terminal devices all need service scheduling, that is, data needs to be received or sent. At this time, the role of the control information field is used to indicate receipt or transmission.
  • Case 2 if not all of the X terminal devices need to perform data transmission and reception, each of the X terminal devices has a corresponding control information field, which indicates that the control information field is also used to indicate The terminal device does not perform data transmission and reception, that is to say, in this case, each terminal device has a corresponding control information field, and whether or not to perform service scheduling, it is necessary to read and judge the corresponding control information field, and according to The result of the judgment is performed for business scheduling.
  • Case 2 if Y is less than X, the first control information field indicates that the first terminal device receives or sends data;
  • the terminal device that has received the second physical layer control information does not have its corresponding control information field in the second physical layer control information, and the first control is performed at this time.
  • the role of the information field merely indicates that the first terminal device receives or transmits data, and the indication that the terminal device does not perform data reception and transmission needs to be indicated by other means or other information.
  • the terminal device may be instructed not to receive or transmit data by not including the control information field of the terminal device in the second physical layer control information.
  • the X terminal devices further include a second terminal device, where the network device sends third physical layer control information to the second terminal device, where the third physical layer control information is used to indicate the second index to the second terminal device, and The second terminal device is configured to monitor the fourth physical layer control information in the second time period, where the second index is used by the second terminal device to determine a control information field corresponding to the second terminal device in the fourth physical layer control information, and The fourth physical layer control information is the second physical layer control information in the third time period in which the first time period and the second time period coincide; in the third time period, if Y is less than X, and the Y control information fields are not The control information field corresponding to the second terminal device is included, and the second physical layer control information indicates that the second terminal device does not perform data transmission and reception.
  • the second physical layer control information has a control information field of the first terminal device, and no control information field of the second terminal device, and for the first terminal device, the corresponding information included in the second physical layer control information Control information field to indicate that it is receiving or transmitting data.
  • the second physical layer control information does not include its corresponding control information field to indicate that it does not need to perform data transmission and reception. It should be noted that, since the second terminal device also receives the second physical layer control information, it is explained that the fourth physical layer is in the third time period in which the second time period overlaps with the first time period. The control information is actually the second physical layer control information.
  • Case 3 If Y is greater than X, the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • Y is greater than X, it indicates that the number of control information fields is greater than the number of terminal devices.
  • the control information field is preset at the beginning, that is, the number is fixed. That is, each terminal device has a corresponding control information field, and the remaining control information field may be empty or may be a preset bit. Therefore, in a case where each terminal device has a corresponding control information field, it can be considered that the first control information field can completely indicate that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the network device pre-defines the value of the Y, where the first control information field indicates that the first terminal device receives or transmits data or does not perform
  • the reason for the transmission and reception of data is as described in the above scenarios 1, 2 and 3, and is not described here again; or the network device sends high layer signaling to the first terminal device, wherein the high layer signaling is used to indicate the value of the Y.
  • the value of Y can be flexibly changed.
  • the second physical layer control information is A scrambling code sequence is scrambled, the first scrambling code sequence being calculated by at least the first set of indices or cell IDs. That is, the network device can use the dedicated identifier of the control information #2 (an example of the second physical layer control information) or the dedicated scrambling code to indicate that the control information is the control information #2 to distinguish the control information #1 from other control information.
  • the dedicated identifier may be a control information format index/indication/flag, etc.
  • the dedicated scrambling code may be a scrambling code sequence calculated according to the cell ID or the carrier ID, and the specific scrambling method.
  • the CRC bit sequence of the control information #2 may be scrambled, or the information bit sequence of the control information #2 may be scrambled, or the information bits and CRC bits of the control information #2 may be scrambled.
  • the network device may also calculate according to the cell ID (or carrier ID) and the time domain unit index in which the control information #2 is located (for example, one or more of a mini slot index, a slot index, a subframe index, and a frame index). Scrambling code sequence.
  • the terminal device may use the first group index (for example, group index #1) obtained from the first physical layer control information to descramble the second physical layer control information, and identify whether the second physical layer control information is sent to The second physical layer control information of the terminal device group where the terminal device is located.
  • group index #1 for example, group index #1
  • the network device sends the second physical layer control information to the at least one terminal device in the first time period, where the network device sends the second physical layer control information in the common search space in the first time period.
  • the public search space is common to at least one terminal device or is a search space common to the serving cell.
  • the first terminal device receives, in the first time period, the second physical layer control information that is sent by the network device in the common search space, where the common search space is common to the terminal device group where the first terminal device is located or is common to the serving cell.
  • the search space, the terminal device group includes at least the first terminal device.
  • the first terminal device determines the first index (index #1) according to the first physical layer control information (control information #1)
  • the first terminal device uses the index #1 at The second physical layer control information (control information #2) is monitored during the first time period. Since the control information #2 is transmitted to at least the terminal device #1, that is, the control information #2 can also be transmitted to other terminal devices such as the terminal device #2 and the terminal device #3. That is to say, the control information #2 can be simultaneously transmitted to a plurality of terminal devices.
  • each control information needs to add a CRC check bit, such as a 16-bit CRC check bit or a 24-bit CRC check bit or other number of CRC check bits. Bit.
  • a CRC check bit such as a 16-bit CRC check bit or a 24-bit CRC check bit or other number of CRC check bits.
  • Bit For example, if the control information #2 is transmitted only to one terminal device, referring to the existing LTE system, the control information 2 needs to add at least 16-bit CRC check bits, so that the terminal device receiving the control information #2 can utilize the CRC.
  • the check bit determines if the received control information is correct.
  • the control information #2 can be simultaneously sent to multiple terminal devices, and one control information #2 only needs to add one CRC check bit, and all terminal devices that receive the control information #2 can utilize This CRC check bit determines whether the received control information is correct, so that the time-frequency resources used for transmitting the control information #2 can be effectively reduced.
  • the terminal device #1 may determine whether the control information #2 is sent to itself or the terminal device group in which it is located by using a dedicated identifier or a dedicated scrambling code, that is, the terminal device #1 may determine whether it is the control information #2. Potential receiving terminal equipment.
  • the terminal device monitors the first physical layer control information and the second physical layer control information. It is assumed that the first terminal device monitors the first physical layer control information by using M time domain units as a period, and monitors the second physical layer control information by using N time domain units as a period, where M and N are both greater than Or a positive integer equal to 1.
  • M and N may be configured by the network device through high layer signaling (such as RRC signaling), or may be pre-defined, for example, predefined by the communication standard or pre-set by the network device and/or the terminal device.
  • the total duration of M time domain units is 1 ms or 0.5 ms, and N is equal to 1.
  • the total time length of the M time domain units is 1 ms, and the 15 kHz subcarrier spacing is used.
  • One time domain unit is a mini time slot containing two time domain symbols, and M is equal to 7.
  • the total time length of the M time domain units is 0.5 ms, using a 15 kHz subcarrier spacing, one time domain unit is a mini time slot, M is equal to 3, and each of the three mini time slots included in each 0.5 ms includes two. 2 and 3 time domain symbols, or 3, 2, and 2 time domain symbols respectively.
  • the total time length of M time domain units is 1 ms, using 30 kHz subcarrier spacing, one time domain unit is one time slot, M is equal to 4, each time slot contains 7 time domain symbols, and the duration of one time slot is 0.25. Ms.
  • the total time length of M time domain units is 1 ms, 60 kHz subcarrier spacing is used, one time domain unit is one time slot, M is equal to 8, each time slot contains 7 time domain symbols, and the duration of one time slot is 0.125. Ms.
  • M and N are only for the convenience of understanding the application content of the present application, and the present application does not specifically limit this.
  • the terminal device can understand that the expiration time of the effective time range of the index #1 (or the index #1 and the group index #1) is the next possible to receive the first physical layer control.
  • the start time may be the time domain unit where the first physical layer control information is located or when the first physical layer control information is located The next time domain unit of the domain unit or the time domain unit specified by the first physical layer control information.
  • the terminal device can understand that the expiration time of the effective time range of the index #1 (or the index #1 and the group index #1) is the next time domain unit that receives the first physical layer control information.
  • the start time may be the time domain unit where the first physical layer control information is located or where the first physical layer control information is located.
  • the value M is greater than the value N.
  • the network device prepares to schedule the terminal device to receive the downlink data or send the uplink data, and configure a part of the scheduling-related information for the terminal device by using the first physical layer control information. After receiving the first physical layer control information, the terminal device monitors the second physical layer control information at a frequency more dense than monitoring the first physical layer control information. That is to say, the period in which the terminal device monitors the second physical layer control information is smaller than the period in which the first physical layer control information is monitored. The network device uses the second physical layer control information to actually schedule the first terminal device to receive downlink data or send uplink data.
  • the scheduling unit is a relatively small time domain unit, the time-frequency resources for transmitting the control information are not significantly increased.
  • the first terminal device monitors the first physical layer control information in a large cycle, and the network device prepares (plans) scheduling data transmission corresponding to the terminal device (sending uplink data or receiving downlink data).
  • the terminal device monitors the second physical layer control information with a small monitoring period, the scheduling information is obtained in time. In this way, the energy of the terminal device for monitoring the control information is effectively saved under the condition that the scheduling efficiency is the same.
  • the scheduling unit is a relatively small time domain unit, the use of such a scheduling method does not significantly increase the energy consumed by the terminal device when monitoring control information.
  • the M smaller time scheduling units are equivalent to one larger time scheduling unit, and the time-frequency resources used by the first physical layer control information are equivalent to the time-frequency resources used by the control information when the larger time scheduling unit is used.
  • the foregoing second physical layer control information adopts a method of common control information, and scheduling a plurality of terminal devices only takes one CRC check bit overhead and does not need to indicate a long identifier of the terminal device (consuming more bit information), thereby effectively saving
  • the second physical layer controls the time-frequency resources used by the information.
  • the implementation method of the present application can achieve that the time-frequency resources for transmitting control information are not significantly increased even if a small time scheduling unit is used, and the terminal device is used for monitoring control information and can adopt a larger time scheduling unit. Quite, and can provide better scheduling opportunities.
  • the information related to the information bearer scheduling may be controlled by the first physical layer as much as possible.
  • the specific timing positions for monitoring the first physical layer control information and the second physical layer control information are specifically described below with reference to FIG. 4 to FIG. 8. It should be noted that the upper and lower two graphs of FIG. 4-8 correspond to the same time domain. For the convenience of description, the description is made at the perspective of the first physical layer control information and the second physical layer control information, respectively. among them,
  • the first time domain unit in the timing diagram of FIG. 4 is that the terminal device monitors the first physical layer. Controlling the location of the information, after monitoring the first physical layer control information, monitoring the second physical layer control information in the first time period (the second time domain unit - the eighth time domain unit), and then The first physical layer control information is further monitored at the period of monitoring the first physical layer control information (the ninth time domain unit).
  • FIG. 5 is a monitoring sequence diagram of another first physical layer control information and second physical layer control information provided by an embodiment of the present application; FIG. 5 is different from FIG. 4 in that the first time domain unit monitors the first After the physical layer control information, the second physical layer control information corresponding to the search may be immediately monitored from other frequency domains in the time domain unit, that is, the first physical layer control information and the second physical layer control information may be in the same A time domain unit is sent in different frequency domains.
  • FIG. 6 is a monitoring timing diagram of still another first physical layer control information and second physical layer control information according to an embodiment of the present application; FIG. 6 is different from FIG. 4 and FIG. 5 in time for receiving first physical layer control information. There may be multiple time domain units separated from the start time of the first time period.
  • FIG. 7 is a monitoring timing diagram of still another first physical layer control information and second physical layer control information according to an embodiment of the present disclosure
  • FIG. 7 and FIG. 6 are different in time and first of receiving the first physical layer control information.
  • the start time of the time period can be separated by more time domain units, and even several cycles of monitoring the first physical layer control information can be spanned.
  • FIG. 8 is a monitoring timing diagram of still another first physical layer control information and second physical layer control information according to an embodiment of the present disclosure; FIG. 8 is different from FIG. 4 in that a time point of monitoring the first physical layer control information may be Is all time zone units except the first time period. That is, as long as the first physical layer control information is monitored, the first physical layer control information does not need to be monitored in the corresponding first time period; and if the second physical layer control information is not monitored, the time domain unit may be The first physical layer control information is monitored, and the first physical layer control information may be monitored by a certain time domain unit. This application does not specifically limit this.
  • the purpose of the network device transmitting the first physical layer control information to the first terminal device is to allocate the temporary identification identifier (index #1) to the terminal device, and send the second physical layer control information to the terminal device.
  • the purpose is to instruct the terminal device to receive downlink data or send uplink data, or not to transmit any data.
  • the downlink data or the uplink data is proprietary data of the terminal device. In other words, the downlink data or the uplink data is not broadcast information or system information.
  • Step S303 The first terminal device determines, according to the first index, the first control information field corresponding to the first terminal device in the second physical layer control information.
  • the first terminal device determines whether the control information field transmitted to itself is included in the control information #2.
  • the following describes in detail how the terminal device #1 determines, based on the index #1, whether the control information #2 contains the control information field transmitted to itself, and further determines the content of the control information transmitted to itself.
  • the second physical layer control information (control information #2) includes a control information field of each terminal device in the first terminal device group, the number Y of the control information field and the current requirement indication
  • the number of terminal devices X is the same.
  • the network device determines that two terminal devices need to be indicated this time, and the control information #2 includes two control information fields, each control information field corresponding to one indicated terminal device, or, if the terminal device needs to be instructed, There are 4 control information fields, and each control information field corresponds to an indicated terminal device.
  • the beneficial effect of adopting mode 1 is that when the number of indicated (scheduled) terminal devices is small, time-frequency resources occupied by control information #2, that is, time-frequency resources used for transmitting control information #2, can be effectively saved.
  • FIG. 9 is a schematic diagram of a specific application scenario of the method for transmitting and receiving control information provided by the current embodiment of the present application.
  • the maximum number of terminal devices that the current network device can support at the same time is 8 (or It is said that the number of bits used to indicate index #1 in control information #1 is 3, or the value of index #1 is an integer from 0 to 7.)
  • This scheduling control information #2 is used to indicate with index 0, index 1 , index 5, index 7 corresponding four terminal devices.
  • Control information #2 contains four control information fields, each of which contains an index #1 field of the terminal device, that is, each control information field is indicated by a corresponding index #1 field.
  • FIG. 10 Another specific application scenario corresponding to the mode 1 is shown in FIG. 10 .
  • FIG. 10 Another specific application scenario corresponding to the mode 1 is shown in FIG. 10 .
  • each control information field may be scrambled by a scrambling code sequence calculated at least according to its index #1.
  • the scrambling code sequence may be used as the calculation parameter in addition to the index #1 or the identifier #2 of the indicated terminal device.
  • the scrambling code sequence is based at least on the index #1 and the indicated time zone unit index of the identifier #1 or the identifier #2 of the terminal device and the control information #2 (eg, mini-slot index, slot index, subframe) The index and one or more of the frame indexes are calculated.
  • the network device may send the fifth control information, indicating that the second physical layer control information is included.
  • the number of fields Y may detect the second physical layer control information according to the number Y of the fields indicated by the fifth control information. This implementation method helps to reduce the computational complexity of the terminal device when detecting the second physical layer control information.
  • the second physical layer control information includes a control information field of each terminal device in the first terminal device group, and the number Y of the control information field is the maximum terminal device that can be simultaneously supported by the current network device.
  • the number is the same, or the number of the maximum supported terminal devices configured by the network device through RRC signaling. That is, no matter the number of terminal devices indicated by the network device in this scheduling, the number of control information fields Y included in the control information #2 is fixed.
  • the maximum number of terminal devices that the current network device can support at the same time is 8, and the control information #2 is fixedly included with eight control information fields regardless of the current terminal indicating several terminal devices.
  • FIG. 11 is a schematic diagram of another specific application scenario of the method for sending and receiving control information provided by the embodiment of the present application; each control information field is arranged in order, and the current network device can simultaneously
  • the maximum number of supported terminal devices is 8, and the current scheduling control information #2 is used to indicate four terminal devices corresponding to index 0, index 1, index 5, and index 7.
  • the set 0, the set 1, the set 5, and the set 7 contain content (i.e., indication information or indication information set sent to the corresponding terminal device), and other sets do not contain content (all control information bits are set to zero or set to default values).
  • the collection containing no content is marked in gray.
  • the beneficial effect of adopting mode 2 is that the number of overall information bits of the control information #2 is consistent, which is advantageous for reducing the number of blind detections of the terminal device, thereby saving power of the terminal device.
  • the field index may be explicitly or implicitly indicated by the method described in the method 1. .
  • the sizes of the different control information fields may be the same or different. If the size of the control information field is different, it may be clearly identified at the beginning of each control information field or the termination location is clearly identified, so that the terminal device can correctly distinguish the respective control information fields after receiving the control information #2.
  • the terminal device #1 can determine whether the control information #2 includes the control information indicated to itself based on the index #1, or the index #1 and the group index #1. For example, the network device adopts mode 1 to transmit control information #2, and the terminal device #1 can indicate whether index #1 (or index #1 and group index #1) according to explicit or implicit indication is associated with its own index #1 (or index).
  • the network device adopts mode 2 to transmit control information #2, and terminal device #1 can locate index #1 with its own index #1 (or index #1 and group index #1) according to explicit or implicit indication (or index #1) 1 and the group index #1) are consistent control information fields, and determine whether the control information #2 contains a control information field transmitted to itself according to whether the field contains content (the specific method is as described above).
  • the network device indicates that the terminal device does not send and does not receive data.
  • the embodiment of the present application may further include the following step S304.
  • Step S304 The first terminal device receives or sends data according to the resource indicated by the resource indication information according to the first control information field.
  • the first physical layer control information includes resource indication information
  • the first control information field indicates that the first terminal device receives or sends data by using the resource indicated by the resource indication information, where the resource includes a frequency.
  • Domain resource or time domain resource or time-frequency resource. That is, the time domain resource and/or the frequency domain resource are placed in the first physical layer control information that is dedicated and only sent once in the first time period, and is avoided in the second physical layer control information that may be sent multiple times later. Sending the resource indication information saves the overhead of control information.
  • the first physical layer control information further includes a first parameter set;
  • the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and redundancy.
  • the first control information field indicating that the first terminal device is according to the first transmission Related information receives or sends data.
  • the first terminal device receives or transmits data according to the first control information field and the first parameter set.
  • the first physical layer control information further includes second transmission related information, where the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index.
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index.
  • the second physical layer control information further includes a third parameter set;
  • the third parameter set includes a HARQ acknowledgement index, a new data indicating NDI, and a redundancy version RV
  • the index, the HARQ acknowledgment feedback at least one of a HARQ-ACK feedback time-frequency resource indication and a downlink allocation index DAI;
  • the first control information field instructing the first terminal device to receive or transmit data according to the second parameter set and the third parameter set.
  • the first terminal device receives or transmits data according to the first control information field and the second parameter set and the third parameter set.
  • the first physical layer control information carries at least one of the following information:
  • an index assigned to the terminal device (including a first index, or a first index and a first group index)
  • the time-frequency resource indication information may be a certain frequency domain resource in the first time period. That is, after the terminal device receives the second physical layer control information, the corresponding frequency domain resource in the time domain unit where the second physical layer control information is located transmits or receives a signal.
  • the time-frequency resource indication information may also be a time-frequency resource in a time domain unit in which the second physical layer control information is located in the first time period. For example, the second physical layer controls a range of frequency domain resources within a minislot within the time domain unit of the information. That is, after receiving the second physical layer control information, the terminal device transmits or receives a signal according to a corresponding time-frequency resource in a time domain unit where the second physical layer control information is located.
  • the first physical layer control information is further used to indicate whether the scheduling is used to schedule the terminal device to receive downlink data or send uplink data. It should be noted that when the first physical layer control information indicates the time domain resource, the second physical layer control information may be monitored only in the corresponding time domain unit or in the adjacent time domain unit, without first Monitor during the time period.
  • the second physical layer control information may send the first index of the scheduled (instructed) terminal device, or arrange the bits according to the first index, optionally, the bit is 0 means no scheduling at this time, and a bit of 1 indicates that the scheduling is performed this time.
  • the current network device simultaneously schedules the number of terminal devices to be 8, and the second physical layer control information includes 8 bits (excluding CRC check bits), and each bit corresponding to one terminal device from left to right (or from right to left), corresponding bits When it is 0, it means that this time is not scheduled. When the corresponding bit is 1, it means that it is scheduled this time.
  • the “this time” may indicate the time domain unit in which the control information #2 is located, or the time domain unit or the time domain unit set in effect indicated by the control information #2 specified by the communication standard.
  • Such an implementation method is an example of the above mode 2, that is, index #1 is indicated by bit order, and each control information field contains only 1-bit indication information.
  • the second physical layer control information may further indicate a Downlink Assignment Index (DAI) bit for each scheduling, for example, for the first terminal device (or a terminal device scheduled by the second physical layer control information)
  • DAI Downlink Assignment Index
  • Each of the second physical layer control information scheduling data independently feeds HARQ acknowledgement (HARQ-ACK) (HARQ-ACK) bits (refeeding at least one bit of HARQ-ACK bits each time) or data of each of the second physical layer control information scheduling
  • the HARQ-ACK bit is fed back (at least one bit of HARQ-ACK bits is fed back each time).
  • the transmission of each second physical layer control information schedule may belong to the same HARQ process.
  • Each second physical layer control information scheduling transmission may be a transport block, or a coding block, or a coding block group.
  • the first physical layer control information carries at least one of the following information:
  • an index assigned to the terminal device (including a first index, or a first index and a first group index)
  • the second physical layer control information carries at least one of the following information:
  • the transmission of each second physical layer control information schedule may belong to different hybrid automatic repeat req (HARQ). process.
  • the first physical layer control information may include the HARQ-ACK feedback time-frequency resource indication and the DAI information, or the first physical layer control information may include the HARQ-ACK feedback time-frequency resource indication and the second physical layer control information includes the DAI information.
  • all the data received by the first physical layer control information in the first time period or the transmitted data is fed back in a HARQ-ACK ACKnowledge message.
  • the second physical layer control information may include the HARQ-ACK feedback time-frequency resource indication and the DAI information, and the received data or the transmission data of each second physical layer control information scheduling respectively correspond to different HARQ-ACK bits. (It can be included in one HARQ-ACK message, and can also be included in different HARQ-ACK messages, depending on the configuration and indication of the network device). If the network device schedules the terminal device to transmit data, the terminal device feeds back the HARQ-ACK bit corresponding to the data to the network device. If the network device schedules the terminal device to receive data, the network device feeds back the HARQ-ACK bit corresponding to the data to the terminal device.
  • the network device may reuse a Modulation and Coding Scheme (MCS) index field, a New Data Indicator (NDI) field, a HARQ process field, and redundancy in the first physical layer control information.
  • MCS Modulation and Coding Scheme
  • NDI New Data Indicator
  • RV Redundancy Version
  • the network device may reuse one of the MCS index field, the NDI field, the HARQ process field, and the RV field or one or more fields in the first physical layer control information to indicate the first index and the first group index that are allocated to the terminal device.
  • the network device may reuse one of the MCS index field, the NDI field, the HARQ process field, and the RV field or the one or more fields in the first physical layer control information to indicate the first time when the first physical layer control information takes effect.
  • the segment range or the first time period in which the first index takes effect, or the first time period in which the terminal device monitors the second physical layer control information.
  • the main function of the first physical layer control information is to inform the first terminal device of the next segment.
  • Time-frequency resources and transmission strategies to be used for service transmission in time That is, when the network device learns that the first terminal device needs to perform resource transmission, the first physical layer control information is sent to the first terminal device, and the terminal device is notified of the specific resources and the specific resources in the next time range. The way to data transmission.
  • the URLLC service considering the randomness of the URLLC service, it is not sure whether it can be transmitted according to the "original plan" in the next time range. Therefore, it is necessary to further notify the confirmation at the location of the corresponding time domain resource.
  • a terminal device knows whether or not to perform data transmission in accordance with the "original plan" to meet the random transmission requirements of the URLLC service.
  • the terminal device may need to monitor whether it has its own control information in n time domain units. However, in the solution of the present application, only The monitoring is performed in the first time period corresponding to the first physical layer control information, which saves the overhead of the terminal device.
  • FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the network device may include a first sending unit 101 and a second sending unit 102, where detailed descriptions of the respective units are as follows.
  • the first sending unit 101 is configured to send first physical layer control information to the first terminal device, where the first physical layer control information is used to indicate the first index to the first terminal device, and is used to indicate the first
  • the first device monitors the second physical layer control information in the first time period, where the first index is used by the first terminal device to determine control information corresponding to the first terminal device in the second physical layer control information.
  • the second sending unit 102 is configured to send the second physical layer control information to the at least one terminal device in the first time period, where the at least one terminal device includes the first terminal device, and the second physical layer
  • the control information includes at least one control information field, the at least one control information field including a first control information field, the first control information field indicating that the first terminal device receives or transmits data, or the first control information field Instructing the first terminal device to receive or transmit data or not to perform data transmission and reception.
  • the second sending unit 102 is specifically configured to:
  • the second physical layer control information in a common search space, where the common search space is common to the at least one terminal device or is a search space common to the serving cell.
  • the at least one terminal device belongs to the first terminal device group; the first physical layer control information is further used to indicate a first group index, and the first group index is used to identify the first terminal device group .
  • the second physical layer control information is scrambled by the first scrambling code sequence, and the first scrambling code sequence is calculated by at least the first group index or the cell ID.
  • the first physical layer control information includes resource indication information, where the first control information field indicates that the first terminal device receives or sends data by using the resource indicated by the resource indication information, where the resource includes Frequency domain resources, or time domain resources or time-frequency resources.
  • the first physical layer control information includes a first field, where the first field includes a coded modulation scheme indication field, a new data indication field, a redundancy version indication field, a transmission power control TPC indication field, and a HARQ process number. At least one of the indication fields; the first physical layer control information is used to indicate the first index to the first terminal device, including:
  • the first physical layer control information is used to indicate the first index by reusing the first field.
  • the network device 10 further includes:
  • a first configuration unit configured to configure, by using high layer signaling, a maximum value of the first index
  • a second configuration unit configured to indicate, by using the high layer signaling, a number of bits or a valid number of bits included in the field corresponding to the first index.
  • the network device 10 further includes:
  • a third configuration unit configured to configure the first time period by using high layer signaling
  • an indicating unit configured to indicate the first time period by using the first physical layer control information.
  • the at least one terminal device includes X terminal devices, and the at least one control information field includes Y control information fields, where X and Y are positive integers;
  • the Y control information fields are in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the first control information The field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception;
  • the first control information field indicates that the first terminal device receives or sends data
  • the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the X terminal devices further include a second terminal device; the network device 10 further includes:
  • a third sending unit configured to send third physical layer control information to the second terminal device, where the third physical layer control information is used to indicate a second index to the second terminal device, and to indicate the
  • the second terminal device monitors fourth physical layer control information in a second time period, where the second index is used by the second terminal device to determine, in the fourth physical layer control information, a control corresponding to the second terminal device An information field, wherein the fourth physical layer control information is the second physical layer control information in a third time period in which the first time period and the second time period coincide; in the third time In the segment, if the Y is smaller than the X, and the control information field corresponding to the second terminal device is not included in the Y control information field, the second physical layer control information indicates the second terminal device No data is sent or received.
  • the network device 10 further includes:
  • a predefined unit configured to pre-define a value of the Y, where the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception;
  • a fourth sending unit configured to send high layer signaling to the first terminal device, where the high layer signaling is used to indicate a value of the Y.
  • the first physical layer control information further includes a first parameter set;
  • the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and a redundancy.
  • the first control information field instructs the first terminal device to receive or transmit data according to the first transmission related information.
  • the first physical layer control information further includes second transmission related information;
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index DAI At least one of the first index and the first time period;
  • the second physical layer control information further includes a third parameter set; the third parameter set includes a HARQ acknowledgment index HARQ process index, a new data indication NDI, a redundancy version RV index, and a HARQ acknowledgment feedback HARQ-ACKfeedback time-frequency resource indication And at least one of the downlink allocation index DAI;
  • the first control information field instructs the first terminal device to receive or transmit data according to the second parameter set and the third parameter set.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • the terminal device is a first terminal device, and the first terminal device may include a first receiving unit 201 and a second receiving unit 202.
  • And determination unit 203 wherein the detailed description of each unit is as follows.
  • the first receiving unit 201 is configured to receive first physical layer control information that is sent by the network device, where the first physical layer control information indicates the first index, and the first terminal device is instructed to monitor the second physical entity in the first time period. Layer control information, the first index corresponding to the first terminal device in the first time period;
  • the second receiving unit 202 is configured to receive, in the first time period, second physical layer control information that is sent by the network device, where the second physical layer control information includes at least one control information field, where the at least one control The information field includes a first control information field, the first control information field indicating that the first terminal device receives or transmits data, or the first control information field indicates that the first terminal device receives or transmits data or does not perform Data transmission and reception;
  • the determining unit 203 is configured to determine, according to the first index, the first control information field corresponding to the first terminal device in the second physical layer control information.
  • the second receiving unit 202 is specifically configured to:
  • the second physical layer control information that is sent by the network device in a common search space, where the common search space is common to or is a service of the terminal device group where the first terminal device is located. a search space common to the cell, the terminal device group including at least the first terminal device.
  • the first physical layer control information includes resource indication information
  • the terminal device 20 further includes:
  • the first transmission unit is configured to receive or send data according to the resource indicated by the resource indication information according to the first control information field, where the resource includes a frequency domain resource, or a time domain resource or a time-frequency resource.
  • the first physical layer control information further indicates a first group index
  • the terminal device 20 further includes:
  • a second determining unit configured to determine, according to the first group index, a first terminal device group that is located by itself.
  • the second physical layer control information is scrambled by the first scrambling code sequence, and the first scrambling code sequence is calculated by at least the first group index or the cell ID.
  • the first terminal device group includes X terminal devices, and the at least one control information field includes Y control information fields, where X and Y are positive integers;
  • the Y control information fields are in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the first control information The field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception;
  • the first control information field indicates that the first terminal device receives or sends data
  • the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the first physical layer control information further includes a first parameter set;
  • the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and a redundancy.
  • a second transmission unit configured to receive or send data according to the first control information field and the first parameter set.
  • the first physical layer control information further includes a second parameter set;
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, At least one of the first index and the first time period;
  • the second physical layer control information further includes a third parameter set; the third parameter set includes a HARQ acknowledgment index HARQ process index, a new data indication NDI, a redundancy version RV index, and a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource At least one of an indication and a downlink allocation index DAI;
  • the terminal device 20 further includes:
  • a third transmitting unit configured to receive or send data according to the first control information field and the second parameter set and the third parameter set.
  • the terminal device 20 further includes:
  • a monitoring unit configured to monitor the first physical layer control information by using M time domain units as a period, and monitoring the second physical layer control information by using N time domain units as a period, where M and N are both greater than Or a positive integer equal to 1, and M is greater than N.
  • FIG. 14 is a schematic structural diagram of another network device according to an embodiment of the present application.
  • network device 30 includes a processor 301, a memory 302, and a transceiver 303.
  • the processor 301, the memory 302 and the transceiver 303 can be connected by a bus or other means.
  • the network device 30 may further include a network interface 304 and a power module 305.
  • the processor 301 can be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, and a transistor logic. Device, hardware component or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the memory 302 is used to store instructions.
  • the memory 302 can be a read-only memory (English: Read-Only Memory, ROM) or a random access memory (English: Random Access Memory, RAM).
  • the memory 302 is configured to store a session connection establishment program code.
  • the transceiver 303 is used to transmit and receive signals. Used to communicate with other network devices, such as receiving or transmitting data with other base stations or terminal devices.
  • Network interface 304 is used by network device 30 for data communication with other devices.
  • the network interface 304 can be a wired interface or a wireless interface, and the network device is communicably connected to other network devices, such as terminal devices, base stations, servers, security gateways, etc., through a wired or wireless network.
  • the power module 305 is used to power various modules of the network device 30.
  • the processor 301 is configured to call an instruction stored in the memory 302 to perform the following operations:
  • the processor 301 is configured to send first physical layer control information to the first terminal device by using the transceiver 303, where the first physical layer control information is used to indicate the first index to the first terminal device, and is used to indicate the location
  • the first terminal device monitors the second physical layer control information in the first time period, where the first index is used by the first terminal device to determine that the second physical layer control information corresponds to the first terminal device Control information field;
  • the processor 301 is configured to send, by using the transceiver 303, the second physical layer control information to the at least one terminal device in the first time period, where the at least one terminal device includes the first terminal device, and the second
  • the physical layer control information includes at least one control information field, the at least one control information field including a first control information field, the first control information field indicating that the first terminal device receives or transmits data, or the first control The information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the processor 301 is configured to send, by using the transceiver 303, the second physical layer control information to the at least one terminal device in the first time period, specifically:
  • the second physical layer control information is transmitted by the transceiver 303 in a common search space in the first time period, and the common search space is a search space common to the at least one terminal device or common to the serving cell.
  • the at least one terminal device belongs to the first terminal device group; the first physical layer control information is further used to indicate a first group index, and the first group index is used to identify the first terminal device group .
  • the second physical layer control information is scrambled by the first scrambling code sequence, and the first scrambling code sequence is calculated by at least the first group index or the cell ID.
  • the first physical layer control information includes resource indication information, where the first control information field indicates that the first terminal device receives or sends data by using the resource indicated by the resource indication information, where the resource includes Frequency domain resources, or time domain resources or time-frequency resources.
  • the first physical layer control information includes a first field, where the first field includes a coded modulation scheme indication field, a new data indication field, a redundancy version indication field, a transmission power control TPC indication field, and a HARQ process number. At least one of the indication fields; the first physical layer control information is used to indicate the first index to the first terminal device, including:
  • the first physical layer control information is used to indicate the first index by reusing the first field.
  • the processor 301 is further configured to:
  • the high-level signaling is configured to indicate the number of bits or the number of valid bits included in the field corresponding to the first index.
  • the processor 301 is further configured to:
  • the first time period is indicated by the first physical layer control information.
  • the at least one terminal device includes X terminal devices, and the at least one control information field includes Y control information fields, where X and Y are positive integers;
  • the Y control information fields are in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the first control information The field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception;
  • the first control information field indicates that the first terminal device receives or sends data
  • the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the X terminal devices further include a second terminal device; the processor 301 is further configured to:
  • the transceiver 303 Transmitting, by the transceiver 303, the third physical layer control information to the second terminal device, where the third physical layer control information is used to indicate the second index to the second terminal device, and is used to indicate the second terminal
  • the device monitors the fourth physical layer control information in the second time period, where the second index is used by the second terminal device to determine a control information field corresponding to the second terminal device in the fourth physical layer control information,
  • the fourth physical layer control information is the second physical layer control information in a third time period in which the first time period and the second time period coincide; in the third time period, If the Y is smaller than the X, and the control information field corresponding to the second terminal device is not included in the Y control information field, the second physical layer control information indicates that the second terminal device does not perform data.
  • the processor 301 is further configured to:
  • the first control information field indicating that the first terminal device receives or transmits data or does not perform data transmission and reception
  • the high layer signaling is sent to the first terminal device by the transceiver 303, wherein the high layer signaling is used to indicate the value of the Y.
  • the first physical layer control information further includes a first parameter set; the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and a redundancy. a version RV index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, the first index, and the first time period; the first control information field indicating the first A terminal device receives or transmits data according to the first transmission related information.
  • MCS index modulation and coding scheme
  • a hybrid automatic repeat request process a HARQ process index
  • a new data indication NDI new data indication
  • redundancy a version RV index, a HARQ acknowledgment feedback, a HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, the first index, and the first time period
  • the first control information field indicating the first A terminal device receives or transmits data according to the first transmission
  • the first physical layer control information further includes second transmission related information;
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, and a downlink allocation index DAI At least one of the first index and the first time period;
  • the second physical layer control information further includes a third parameter set;
  • the third parameter set includes a HARQ confirmation index, a HARQ process index, and new data At least one of an NDI, a redundancy version RV index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, and a downlink assignment index DAI;
  • the first control information field indicating that the first terminal device is according to the second The set of parameters and the third set of parameters receive or transmit data.
  • FIG. 15 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure, where the terminal device may be a first terminal device.
  • the terminal device includes a processor 401, a memory 402, and a transceiver 403.
  • the processor 401, the memory 402, and the transceiver 403 may be connected by a bus or other means.
  • the terminal device may further include a network interface 404 and a power module 405.
  • the processor 401 can be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, and a transistor logic. Device, hardware component or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the memory 402 is used to store instructions.
  • the memory 402 can be a read-only memory (English: Read-Only Memory, ROM) or a random access memory (English: Random Access Memory, RAM).
  • the memory 402 is configured to store a session connection establishment program code.
  • the transceiver 403 is for transmitting and receiving signals. Used to communicate with other network devices, such as receiving or transmitting data with other base stations or security gateways.
  • the network interface 404 is used for data communication between the terminal device and other devices.
  • the network interface 404 can be a wired interface or a wireless interface, and the network device is communicably connected to other network devices, such as terminal devices, base stations, servers, security gateways, etc., through a wired or wireless network.
  • the power module 405 is used to supply power to various modules of the terminal device.
  • the processor 401 is configured to call an instruction stored in the memory 402 to perform the following operations:
  • the processor 401 is configured to receive, by using the transceiver 403, first physical layer control information that is sent by the network device, where the first physical layer control information indicates the first index, and the first terminal device is instructed to monitor the first time period. Two physical layer control information, where the first index corresponds to the first terminal device in the first time period;
  • the processor 401 is further configured to receive, by using the transceiver 403, second physical layer control information that is sent by the network device in the first time period, where the second physical layer control information includes at least one control information field, where The at least one control information field includes a first control information field, the first control information field instructing the first terminal device to receive or transmit data, or the first control information field instructing the first terminal device to receive or send data Or not sending or receiving data;
  • the processor 401 is further configured to determine, according to the first index, the first control information field corresponding to the first terminal device in the second physical layer control information.
  • the processor 401 is further configured to receive, by using the transceiver 403, the second physical layer control information that is sent by the network device in the first time period, specifically:
  • the transceiver 403 Receiving, by the transceiver 403, the second physical layer control information that is sent by the network device in a common search space in the first time period, where the common search space is common to the terminal device group where the first terminal device is located. Or a search space common to the serving cell, the terminal device group including at least the first terminal device.
  • the first physical layer control information includes resource indication information
  • the processor 401 is further configured to:
  • the transceiver 403 And receiving, by the transceiver 403, the data by using the resource indicated by the resource indication information according to the first control information field, where the resource includes a frequency domain resource, or a time domain resource or a time-frequency resource.
  • the first physical layer control information further indicates a first set of indexes; the processor 401 is further configured to:
  • the second physical layer control information is scrambled by the first scrambling code sequence, and the first scrambling code sequence is calculated by at least the first group index or the cell ID.
  • the first terminal device group includes X terminal devices, and the at least one control information field includes Y control information fields, where X and Y are positive integers;
  • the Y control information fields are in one-to-one correspondence with the X terminal devices, and the first control information field indicates that the first terminal device receives or sends data, or the first control information The field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception;
  • the first control information field indicates that the first terminal device receives or sends data
  • the first control information field indicates that the first terminal device receives or transmits data or does not perform data transmission and reception.
  • the first physical layer control information further includes a first parameter set;
  • the first parameter set includes a modulation and coding scheme MCS index, a hybrid automatic repeat request process, a HARQ process index, a new data indication NDI, and a redundancy.
  • the version RV index, the HARQ acknowledgment feedback, the at least one of the HARQ-ACK feedback time-frequency resource indication, the downlink allocation index DAI, the first index, and the first time period; the processor 401 is further configured to:
  • Data is received or transmitted by the transceiver 403 according to the first control information field and the first parameter set.
  • the first physical layer control information further includes a second parameter set;
  • the second parameter set includes a modulation and coding scheme MCS index, a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource indication, a downlink allocation index DAI, At least one of the first index and the first time period;
  • the second physical layer control information further includes a third parameter set; the third parameter set includes a HARQ acknowledgment index HARQ process index, a new data indication NDI, a redundancy version RV index, and a HARQ acknowledgment feedback HARQ-ACK feedback time-frequency resource At least one of an indication and a downlink allocation index DAI;
  • the processor 401 is further configured to:
  • Data is received or transmitted by the transceiver 403 according to the first control information field and the second parameter set and the third parameter set.
  • the processor 401 is further configured to:
  • M time domain units Monitoring, by the M time domain units, the first physical layer control information, and monitoring the second physical layer control information by using N time domain units as a period, where both M and N are greater than or equal to 1 An integer, and M is greater than N.
  • the embodiment of the present application further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of any one of the control information sending and receiving methods described in the foregoing method embodiments.
  • the embodiment of the present application further provides a computer program including instructions, when the computer program is executed by a computer, to enable the computer to execute some or all of the steps of any one of the control information transmitting and receiving methods.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described above as separate components may or may not be physically separated.
  • the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the above-described integrated unit if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, server or network device, etc., and in particular a processor in a computer device) to perform all or part of the steps of the above-described methods of various embodiments of the present application.
  • the foregoing storage medium may include: a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

本申请实施例公开了一种控制信息发送、接收方法及相关设备，其中的方法可包括：网络设备向第一终端设备发送第一物理层控制信息，所述第一物理层控制信息用于向第一终端设备指示第一索引，以及用于指示第一终端设备在第一时间段监测第二物理层控制信息；以及所述网络设备在第一时间段内向至少一个终端设备发送第二物理层控制信息，第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示第一终端设备接收或发送数据，或者所述第一控制信息字段指示第一终端设备接收或发送数据或不进行数据的收发。采用本申请实施例可以解决现有技术中业务调度不够灵活的问题。

Description

一种控制信息发送、接收方法及相关设备 技术领域
本申请涉及通信技术领域，尤其涉及一种控制信息发送、接收方法及相关设备。
背景技术
第五代移动通信技术(英文：5th-Generation，简称：5G)是目前正在推进的第四代移动通信技术(英文：4th-Generation，简称：4G)之后的延伸，正处于研究中。根据国际电信联盟(International Telecommunication Union，ITU)对5G的需求，5G未来需要支持各种业务，例如，增强移动宽带(Enhanced Mobile Broadband，eMBB)业务、极高可靠性低时延通信(Ultra-reliable/low latency communication，URLLC)业务、海量机器类型通信(Massive machine-type communication，Massive MTC)业务等，其中，eMBB业务对传输速率、信号覆盖范围、传输时延、移动性等要求较高，如3D/超高清视频等大流量移动宽带业务；URLLC业务对可靠性、移动性和传输时延要求极高，如无人驾驶、工业自动化等需要低时延高可靠连接业务；Massive MTC业务对单位区域连接数目(连接密度)以及信号覆盖范围要求较高，如大规模物联网业务。
在某些5G的场景中，需要同时支持不同类型业务，但通常不同类型的业务对系统的要求不同，因此，常常不能同时满足不同业务的不同需求。又由于目前5G系统的架构和各种设计细节仍在讨论中，因此还未提供如何解决5G不同业务的兼容和灵活调度的问题。
发明内容
本申请实施例所要解决的技术问题在于，提供一种控制信息发送、接收方法及相关设备，解决了现有技术中以及5G的场景中业务调度不灵活的技术问题。
第一方面，本申请实施例提供了一种控制信息发送方法，可包括：
网络设备向第一终端设备发送第一物理层控制信息，所述第一物理层控制信息用于向所述第一终端设备指示第一索引，以及用于指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引用于所述第一终端设备确定所述第二物理层控制信息中与所述第一终端设备对应的控制信息字段；以及
所述网络设备在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，所述至少一个终端设备包括所述第一终端设备，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
通过实施本申请实施例，可以将控制信息分成专用的第一物理层控制信息和公用的第二物理层控制信息两级来进行控制调度，形成专有通道和公用通道并存的两级控制通道。且由于第一物理层控制信息和第二物理层控制信息是分开传输的，因此该两级控制信息的传输的时机、所传输的资源、所包含的控制信息内容以及所指示的终端设备范围必定可以不同，甚至是排列组合出多种可能性，也因此可以在该业务调度框架下产生多种调度方式 的可能性，增加了调度的灵活性，从而满足不同业务的不同需求。
可选的，所述网络设备在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，包括：所述网络设备在所述第一时间段内在公共搜索空间发送所述第二物理层控制信息，所述公共搜索空间为所述至少一个终端设备公用的或者是服务小区公用的搜索空间。
通过实施本申请实施例，可以利用公共搜索空间向多个终端设备发送公用的第二物理层控制信息，便于节省资源开销。
可选的，所述至少一个终端设备属于第一终端设备组；所述第一物理层控制信息还用于指示第一组索引，所述第一组索引用于标识所述第一终端设备组。
通过实施本申请实施例，可以通过第一组索引标识均需要接收第二物理层控制信息的多个终端设备。
可选的，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
通过实施本申请实施例，可以让终端设备根据获得的第一组索引或者小区ID监测并接收到对应的第二物理层控制信息。
可选的，所述第一物理层控制信息包括资源指示信息，所述第一控制信息字段指示所述第一终端设备使用所述资源指示信息所指示的资源接收或者发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
通过实施本申请实施例，通过在第一物理层控制信息中包含指示用于进行数据传输的资源指示信息，从而避免可能需要在第二物理层控制信息中多次发送资源指示信息的开销。
可选的，所述第一物理层控制信息包括第一字段，所述第一字段包括编码调制方案指示字段、新数据指示字段、冗余版本指示字段、传输功率控制TPC指示字段和混合自动重传请求HARQ进程号指示字段中的至少一种；所述第一物理层控制信息用于向所述第一终端设备指示第一索引，包括：所述第一物理层控制信息用于通过重用所述第一字段指示所述第一索引。
可选的，所述方法还包括：所述网络设备通过高层信令配置所述第一索引的最大取值；或者
所述网络设备通过高层信令配置用于指示所述第一索引对应的字段包含的比特数或者有效比特数。
可选的，所述方法还包括：所述网络设备预先定义所述第一时间段；或者所述网络设备通过高层信令配置所述第一时间段；或者所述网络设备通过所述第一物理层控制信息指示所述第一时间段。
可选的，所述至少一个终端设备包括X个终端设备，所述至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数；若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，所述X个终端设备中还包括第二终端设备；所述方法还包括：所述网络设备向所述第二终端设备发送第三物理层控制信息，所述第三物理层控制信息用于向所述第二终端设备指示第二索引，以及用于指示所述第二终端设备在第二时间段监测第四物理层控制信息，所述第二索引用于所述第二终端设备确定所述第四物理层控制信息中与所述第二终端设备对应的控制信息字段，其中，所述第四物理层控制信息在所述第一时间段和所述第二时间段重合的第三时间段内为所述第二物理层控制信息；在所述第三时间段内，若所述Y小于所述X，且所述Y个控制信息字段中不包括所述第二终端设备对应的控制信息字段，所述第二物理层控制信息指示所述第二终端设备不进行数据的收发。
可选的，所述方法还包括：所述网络设备预先定义所述Y的值，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；或者所述网络设备向所述第一终端设备发送高层信令，其中，所述高层信令用于指示所述Y的值。
可选的，所述第一物理层控制信息还包括第一参数集合，所述第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；所述第一控制信息字段指示所述第一终端设备根据所述第一传输相关信息接收或发送数据。
可选的，所述第一物理层控制信息还包括第二传输相关信息，所述第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；所述第二物理层控制信息还包括第三参数集合；所述第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示和下行分配索引DAI中的至少一种；所述第一控制信息字段指示所述第一终端设备根据所述第二参数集合和所述第三参数集合接收或发送数据。
第二方面，本申请实施例提供了一种控制信息接收方法，可包括：
第一终端设备接收网络设备发送的第一物理层控制信息，所述第一物理层控制信息指示第一索引，以及指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引在所述第一时间段内与所述第一终端设备对应；
所述第一终端设备在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
所述第一终端设备根据所述第一索引确定所述第二物理层控制信息中所述第一终端设备对应的所述第一控制信息字段。
可选的，所述第一终端设备在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，包括：所述第一终端设备在所述第一时间段内接收所述网络设备在公共搜索空间发送的所述第二物理层控制信息，所述公共搜索空间为所述第一终端设备所在终端设备组所公用的或者是服务小区公用的搜索空间，所述终端设备组至少包括所述第一终端设备。
可选的，所述第一物理层控制信息包括资源指示信息；所述方法还包括：所述第一终 端设备根据所述第一控制信息字段使用所述资源指示信息所指示的资源接收或发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
可选的，所述第一物理层控制信息还指示第一组索引；所述方法还包括：所述第一终端设备根据所述第一组索引确定自身所在第一终端设备组。
可选的，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
可选的，所述第一终端设备组包括X个终端设备，所述至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数；若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，所述第一物理层控制信息还包括第一参数集合；所述第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；所述方法还包括：所述第一终端设备根据所述第一控制信息字段以及所述第一参数集合接收或发送数据。
可选的，所述第一物理层控制信息还包括第二参数集合；所述第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；所述第二物理层控制信息还包括第三参数集合；所述第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示和下行分配索引DAI中的至少一种；所述方法还包括：所述第一终端设备根据所述第一控制信息字段以及所述第二参数集合和所述第三参数集合接收或发送数据。
可选的，所述方法还包括：所述第一终端设备以M个时域单位为周期监测所述第一物理层控制信息，且以N个时域单位为周期监测所述第二物理层控制信息，其中，M和N均为大于或者等于1的正整数，且M大于N。
第三方面，本申请提供一种网络设备，该网络设备具有实现上述控制信息发送方法实施例中方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面，本申请提供一种终端设备，该终端设备具有实现上述控制信息接收方法实施例中方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第五方面，本申请提供一种网络设备，该网络设备中包括处理器，处理器被配置为支持该网络设备执行第一方面提供的一种控制信息发送方法中相应的功能。该网络设备还可以包括存储器，存储器用于与处理器耦合，其保存该网络设备必要的程序指令和数据。该网络设备还可以包括通信接口，用于该网络设备与其他设备或通信网络通信。
第六方面，本申请提供一种终端设备，该终端设备中包括处理器，处理器被配置为支 持该终端设备执行第二方面提供的一种控制信息接收方法中相应的功能。该终端设备还可以包括存储器，存储器用于与处理器耦合，其保存该终端设备必要的程序指令和数据。该终端设备还可以包括通信接口，用于该终端设备与其他设备或通信网络通信。
第七方面，本申请提供一种计算机存储介质，用于储存为上述第五方面提供的网络设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第八方面，本申请提供一种计算机存储介质，用于储存为上述第六方面提供的终端设备所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第九方面，本申请实施例提供了一种计算机程序，该计算机程序包括指令，当该计算机程序被计算机执行时，使得计算机可以执行上述第一方面中任意一项的控制信息发送方法中的流程。
第十方面，本申请实施例提供了一种计算机程序，该计算机程序包括指令，当该计算机程序被计算机执行时，使得计算机可以执行上述第二方面中任意一项的控制信息接收方法中的流程。
可选的，所述第一物理层控制信息包括第二字段；所述第一物理层控制信息还用于指示第一组索引，包括：所述网络设备在所述第一物理层控制信息中通过重用所述第二预设字段指示所述第一组索引。
可选的，所述网络设备通过第一物理层控制信息所使用的用于发送所述第一物理层控制信息的时频资源位置指示所述第一索引。
可选的，所述网络设备通过所述第一物理层控制信息中的指定控制资源集合中发送第一个CCE或者REG所在的控制资源集合指示所述第一索引；或者通过所述第一物理层控制信息中的指定控制资源集合中发送第一个CCE或者REG所在的控制资源集合指示所述第一组索引。
可选的，网络设备通过高层信令配置第一组索引的最大取值；或者网络设备通过高层信令配置用于指示第一组索引对应的字段包含的比特数或者有效比特数。
本申请实施例，通过网络设备向第一终端设备发送第一物理层控制信息，以及在第一时间段内向包括该第一终端设备在内的至少一个终端设备发送第二物理层控制信息，从而通过第二物理层控制信息中包括的至少一个控制信息字段(包含第一控制信息字段)，指示该第一终端设备进行数据的收发，或者指示该第一终端设备进行数据的收发或不进行数据的收发。其中，第一物理层控制信息向第一终端设备指示第一索引，以及指示第一终端设备在第一时间段监测第二物理层控制信息并利用第一索引确定第二物理层控制信息中与其自身对应的控制信息字段，从而最终决定是否进行调度。即本申请中，网络设备在确定第一终端设备需要进行调度的情况下向该第一终端设备发送专用的第一物理层控制信息，预先通知该第一终端设备在第一时间段内监听其对应的第二物理层控制信息。而后便在该通知的第一时间段内如约向包括该第一终端设备在内的至少一个终端设备发送公用的第二物理层控制信息，具体告知第一终端设备是否要进行最终的业务调度。也即是说本申请提供一个整体的业务调度框架，将控制信息分成专用的第一物理层控制信息和公用的第二物理层控制信息两级来进行控制调度，形成专有通道和公用通道并存的两级控制通道。且由于第一物理层控制信息和第二物理层控制信息是分开传输的，因此该两级控制信息的传输的 时机、所传输的资源、所包含的控制信息内容以及所指示的终端设备范围必定可以不同，甚至是排列组合出多种可能性，也因此可以在该业务调度框架下产生多种调度方式的可能性，增加了调度的灵活性，从而满足不同业务的不同需求。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的采用相同时域单位传输eMBB和URLLC的一个具体应用场景示意图；
图2是本申请实施例提供的通信网络架构图；
图3是本申请实施例提供的一种控制信息发送、接收方法的流程示意图；
图4是本申请实施例提供的一种第一物理层控制信息和第二物理层控制信息的监测时序图；
图5是本申请实施例提供的另一种第一物理层控制信息和第二物理层控制信息的监测时序图；
图6是本申请实施例提供的又一种第一物理层控制信息和第二物理层控制信息的监测时序图；
图7是本申请实施例提供的又一种第一物理层控制信息和第二物理层控制信息的监测时序图；
图8是本申请实施例提供的又一种第一物理层控制信息和第二物理层控制信息的监测时序图；
图9是本申请实施例提供的控制信息发送、接收方法的具体应用场景示意图；
图10是本申请实施例提供的控制信息发送、接收方法的另一个具体应用场景示意图；
图11是本申请实施例提供的控制信息发送、接收方法的又一个具体应用场景示意图；
图12是本申请实施例提供的一种网络设备的结构示意图；
图13是本申请实施例提供的一种终端设备的结构示意图；
图14是本申请实施例提供的另一种网络设备的结构示意图；
图15是本申请实施例提供的一种终端设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例进行描述。
本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实 施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
应理解，本发明实施例可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，简称“GSM”)系统、码分多址(Code Division Multiple Access，简称“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称“WCDMA”)系统、通用分组无线业务(General Packet Radio Service，简称“GPRS”)、长期演进(Long Term Evolution，简称“LTE”)系统、先进的长期演进(Advanced long term evolution，简称“LTE-A”)系统、通用移动通信系统(Universal Mobile Telecommunication System，简称“UMTS”)或下一代通信系统如5G通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，简称“D2D”)通信，机器到机器(Machine to Machine，简称“M2M”)通信，机器类型通信(Machine Type Communication，简称“MTC”)，以及车辆间(Vehicle to Vehicle，简称“V2V”)通信。
本发明实施例结合发送设备和接收设备描述了各个实施例，其中：
终端设备也可以称为用户设备(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。终端设备可以是无线局域网(Wireless Local Area Networks，简称“WLAN”)中的站点(STAION，简称“ST”)，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”)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信系统，例如，第五代通信(fifth-generation，简称“5G”)网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，简称“PLMN”)网络中的终端设备等。
作为示例而非限定，在本发明实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功 能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，本发明实施例结合网络设备描述了各个实施例。网络设备可以是网络设备等用于与移动设备通信的设备，网络设备可以是WLAN中的接入点(ACCESS POINT，AP)，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”)，或者中继站或接入点，或者车载设备、可穿戴设备以及未来5G网络中的网络设备(g Node B，简称“gNB”或“gNodeB”)或者未来演进的PLMN网络中的网络设备等。
另外，在本发明实施例中，网络设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
此外，LTE系统或5G系统中的载波上可以同时有多个小区同频工作，在某些特殊场景下，也可以认为上述载波与小区的概念等同。例如在载波聚合(CA，Carrier Aggregation)场景下，当为终端设备配置辅载波时，会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(Cell Indentify，Cell ID)，在这种情况下，可以认为载波与小区的概念等同，比如终端设备接入一个载波和接入一个小区是等同的。
本发明实施例提供的方法和相关设备，可以应用于终端设备或网络设备，该终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(Central Processing Unit，简称“CPU”)、内存管理单元(Memory Management Unit，简称“MMU”)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(Process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，在本发明实施例中，传输控制信息的方法的执行主体的具体结构，本发明实施例并未特别限定，只要能够通过运行记录有本发明实施例的传输控制信息的方法的代码的程序，以根据本发明实施例的传输控制信息的方法进行通信即可，例如，本发明实施例的无线通信的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
此外，本发明实施例的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(Compact Disc，简称“CD”)、数字通用盘(Digital Versatile Disc，简称“DVD”)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(Erasable Programmable Read-Only Memory，简称“EPROM”)、卡、棒或钥匙驱动器等)。另外，本文 描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1、数据帧，就是数据链路层的协议数据单元，它包括三部分：帧头，数据部分，帧尾。其中，帧头和帧尾包含一些必要的控制信息，比如同步信息、地址信息、差错控制信息等；数据部分则包含网络层传下来的数据，比如IP数据包。
2)、聚合水平(Aggregation Level)，一个子帧中可以同时传输多个物理下行控制信道(Physical Downlink Control Channel，PDCCH)，一个PDCCH由n个连续的CCE组成，聚合水平表示一个PDCCH占用的连续的CCE个数n，。
3)、“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
首先，提出本申请中在其中一种可以解决技术问题的5G应用场景。在本申请提出的5G的场景中，需要同时支持不同类型业务，如同时支持URLLC业务和eMBB业务，但URLLC业务对时延的要求明显高于eMBB业务，因此URLLC业务所要求的单次传输时间(即一个传输块的传输时间)应明显小于eMBB业务所要求的单次传输时间。如果采用传统调度方法指示eMBB和URLLC业务，则URLLC业务可能需要等待eMBB数据传输完毕之后才能被调度，可能导致URLLC业务尚未被发送或者刚刚被调度就超过了时延要求(超时即传输失败)，此时无法满足URLLC的极高可靠性要求。若采用预留频域的方法，即仅使用预留的频域资源为URLLC业务服务，而eMBB业务不在此频域资源进行调度，则为了满足URLLC业务中部分随机到达业务的传输可靠性要求，需要预留足够宽的频域资源(能够保证峰值到达的所有数据包的传输可靠性的时频资源)，如此会造成明显的资源浪费。
因此，本申请所要解决的技术问题在于如何通过有效的调度方法使得URLLC业务和eMBB业务高效共存，并且，本申请中主要讨论利用相同或者相近的时域单位作为调度单位调度eMBB和URLLC业务的方法来解决eMBB和URLLC如何高效共存的问题。以下将首先具体分析利用相同或者相近的时域单位作为调度单位的解决方式面临的主要技术问题和难点：
由于URLLC业务所要求的单次传输时间明显小于eMBB业务，因此若eMBB业务和URLLC业务采用相同或者相近，且能够满足URLLC业务对传输时延和可靠性要求的时域单位进行调度，则必定也能满足eMBB业务对传输时延和可靠性的要求。并且可以同时减少URLLC业务数据包的等待时间，进而减小URLLC数据包的传输时延。即最终同时满足eMBB和URLLC共存的传输时延和可靠性要求。具体地请参见图1，图1为本申请实施例提供的采用相同时域单位传输eMBB和URLLC的一个具体应用场景示意图，图1中示出了5个相同的时域单位(如时域符号)，eMBB业务和URLLC业务分别采用相同的时域单位进行调度，可以满足URLLC随机到达时的传输时延，即同时满足eMBB和URLLC业 务对传输时延和可靠性的要求。
然而，采用上述调度方法的问题在于，能够满足URLLC数据传输时延要求的时域调度单位必然明显小于通常用于调度eMBB数据的时域调度单位，而采用过小的时域单位调度eMBB数据传输可能造成调度传输的控制信息的开销增加，进而降低了eMBB业务时频资源的使用效率。例如，如果采用1ms时域单位调度eMBB数据传输，而用于承载调度相关控制信息的时频资源占比通常达到20％，当减小调度的时域单位时，例如从1ms减小至0.125ms的，即使采用优化的调度算法(比如尽可能减小一个时域单位内调度的eMBB终端设备数)，用于承载调度相关控制信息的时频资源占比也会增长至50％。此外，由于每个时域单位都可能用于调度eMBB数据传输，因此，eMBB终端设备可能需要在逐个时域单位内监测相关调度控制信息，如此一来便会增加eMBB终端设备监测控制信息的次数，进而增加eMBB终端设备的功耗。综上分析，通过减小时域调度单位实现URLLC业务和eMBB业务的高效共存的过程中，如何尽可能减小用于承载控制信息的开销以及减小eMBB终端设备的功耗是本申请主要解决的技术问题和难点。
需要强调说明的是，尽管本申请所解决的是基于实现URLLC业务与eMBB业务高效共存时产生的调度控制信息所占时频资源开销过大的问题，但本申请也可以应用于其它场景中用于减小承载控制信息的时频资源或者为网络设备提供更灵活的调度。例如，在没有URLLC业务时，仅用于调度eMBB业务，采用本申请的实施方法可以有效减小用于承载控制信息的时频资源占总时频资源的比例(相对于逐个时域调度单位发送用于调度的控制信息)。并且，在这种情况下，本申请使用场景不限于较小的时域调度单位，例如，在LTE授权辅助接入(License-assisted Access，LAA)应用场景中可使用的时频资源具有不确定性，采用本申请的实施方法可以为LAA应用场景提供更灵活的调度，同时减小用于承载控制信息的时频资源占总时频资源的比例。又例如，在未来5G部署的高频场景中，天线采用较窄的波瓣(beam)服务终端设备，为了增加覆盖(服务)范围，天线随着时间改变发送beam的方向，每个beam的持续时间较短(如一个或者若干个时域符号)。每个beam的较短的持续时间类似于前述较小的时域调度单位，采用本申请的实施方法可以有效减小用于承载控制信息的时频资源占总时频资源的比例。又例如，还可以利用专用的第一物理层控制信息为终端设备提供一个专用通道，通知终端设备私有的或有安全性要求的控制信息内容，而在公用控制信息时提供一个公用通道，为需求或者调度情形、时机类似的终端设备发送公用的控制信息，则可以减少校验或者传输资源，不仅保证了调度的安全性也节省了相关资源。综上所述，URLLC业务与eMBB业务共存的应用场景仅为示例，本申请的实施方法不以此为限制。
此外，需要理解的是，本申请中的时域单位可以是时域符号、迷你时隙、时隙或者子帧等，本申请对此不作具体限制。需要特别说明的是，迷你时隙的时间长度(即包含时域符号的个数)可以是固定的也可以是灵活变化的。
为了便于理解本申请实施例，基于上述，下面先对本申请实施例所基于的通信系统架构进行描述。请参见图2，图2为本申请实施例提供的通信系统架构图，该通信系统架构中包含了网络设备和终端设备，其中作为示例而非限定，网络设备为接入的终端设备进行 资源调度，终端设备则利用网络设备为其调度的资源进行数据传输，其中
终端设备，可以为该通信系统中用户侧的设备，可以支持eMBB业务，或者支持URLLC业务，或者同时支持eMBB业务和URLLC业务。且该终端设备在通信时使用的资源受网络设备的调度。
网络设备，可以为5G通信系统中网络侧的网元，例如，可以为5G通信系统中gNB。具体地，网络设备可以向终端设备组中的所有终端设备发送第一物理层控制信息为其分配临时识别标识。进一步地，网络设备还可以向终端设备组中的部分或者所有终端设备发送第二物理层控制信息。其中的第一物理层控制信息中可以携带终端设备在有效时间范围内的固定不变的传输调度控制信息，而第二物理层控制信息中则携带可以灵活变化并最终能确定终端设备是否真正进行传输调度的控制信息。例如，在一段有效时间内，通过第一物理层控制信息告知终端设备在该有效时间内使用哪个时频位置、以及使用何种调制与编码策略进行数据传输。但是，由于本申请中URLLC业务的随机到来的时机是不确定的，因此，可能在第一物理层控制信息中预先分配给终端设备的资源需要“让一让位”优先让URLLC业务进行传输，以保证该业务的传输时延要求。因此需要通过第二物理层控制信息实时的告知终端设备是否可以真正在第一物理层控制信息中指示的资源位置处进行调度，亦或者是要根据实际情况进行一些调整再进行调度。并且，由于有效时间范围划分的时域单位的粒度是满足URLLC业务的传输时延的，因此，在第一物理层控制信息将主要的传输调度控制信息发送给终端设备之后，再利用第二物理层控制信息进行实时灵活的调度，最终不仅可以节省需要在每个是域单位上发送控制信息的开销，还可以满足随机业务穿插进来的时延要求，一举两得。更具体的描述参照后述实施例部分的描述。
需要说明的是，本申请涉及的通信系统可以包括LTE系统以及LTE系统的未来演进系统，也可以是5G无线接入(New Radio Access Technology in 3GPP，NR)系统，简称5GNR系统，本申请对此不作具体限定。可以理解的是，图2中的通信系统架构只是本申请实施例中的一种示例性的实施方式，本申请实施例中的通信系统架构包括但不仅限于以上通信系统架构。
结合上述通信系统架构，以下将对本申请中具体如何尽可能减小用于承载控制信息的开销以及减小eMBB终端设备的功耗的总体思路进行分析和阐述：
在现有技术中，终端设备出厂后会有至少一个全球唯一标识，例如IMSI(International mobile subscriber identity)标识或者IMEI(International mobile equipment identity)标识，该全球标识由48位以上二进制数表示。终端设备因为需要被服务而成功接入网络后，或，终端设备被网络设备寻呼成功接入网络后，网络设备会为终端设备指定一个唯一的终端设备标识，该终端设备标识至少在当前网络设备服务的小区内有效。也即是说，在当前网络设备服务的小区内，终端设备标识与终端设备一一对应。作为示例而非限定，该终端设备标识可以为无线网络临时标识(Radio Network Tempory Identity，RNTI)，也可以为其它可以在小区内唯一标识该终端设备的标识。一般而言，终端设备标识由16位或者16位以上二进制比特表示。
假设终端设备#1有一个至少在当前小区生效的唯一标识(叙述简单起见，简称为标识#1)，和一个全球唯一标识(简称为标识#2)。终端设备#1接收到控制信息之后，可以通过 根据自己的标识#1或者标识#2确定该接收到的控制信息是否为自己的控制信息。例如，网络设备使用标识#1对发送给终端设备#1的控制信息的循环冗余校验(Cyclic Redundancy Check，CRC)比特进行加扰，终端设备使用标识#1对CRC进行解扰，解扰后利用该CRC比特确定接收到的该控制信息中的信息比特接收正确，则终端设备确定该控制信息是网络设备发送给自己的。其中，终端设备#1具体如何通过标识#1来确定自己的控制信息的原理与过程，与现有LTE系统中终端设备确定用于发给自己的PDCCH的方法类似。而如何通过标识#2来确定自己的控制信息的原理与过程与现有LTE系统中终端设备处于非连接态(如IDLE态)时，确定网络设备发送寻呼消息(PAGING)是否发给自己的方法类似，这里不再赘述。可以理解的是，无论终端设备#1是通过上述标识#1还是标识#2识别自身的控制信息，都会产生较大的开销，因为标识#1和标识#2至少都是16位以上的二进制比特，比特数比较大，因此，由标识本身产生的开销就非常明显。又由于前述所分析的，想要实现eMBB业务和URLLC业务的高效共存，需要采用较小的时域调度单位(如时域符号、迷你时隙、时隙或子帧等)，而控制信息又是分布在每一个时域调度单位里，因此若标识#1和标识#2的比特数较大，则会严重浪费资源开销。
因此，本申请实施例将通过在控制信息#1中为终端设备#1指示一个临时索引#1，其中，“临时”是指从终端设备接收到控制信息#1开始(或者，控制信息#1指示的起始位置开始)，索引#1在一段时间内有效，即在该持续时间内采用索引#1指示的控制信息为发送给终端设备#1的控制信息，和/或采用索引#1指示的传输数据为发送给终端设备#1的数据或者由终端设备#1发送的数据。或者说，在该持续时间内，发送给终端设备#1的控制信息与索引#1相关，和/或用于指示终端设备#1接收数据或者指示终端设备#1发送数据的控制信息与索引#1相关。本申请实施例减小发送相关控制信息时必须使用的终端设备的识别标识的比特数(例如，用索引#1临时代替标识#1或者标识#2)，从而减小用于承载控制信息的开销以及减小eMBB终端设备的功耗，最终实现eMBB业务和URLLC业务的高效共存。
可以理解的是，以上只是从减少第一索引的比特数的角度来分析如何减少由于采用过小的时域单位调度eMBB数据传输可能造成调度传输的控制信息的开销增加。本申请中还包括其它实施方式减少控制信息开销的方案，例如将时频资源等在一定时间内固定不变的资源通过在第一物理层控制信息中一次发送，而将灵活可变的实际调度信息包含在共用的第二物理层控制信息中多次发送的方式，避免将重复资源多次传输造成的开销增加等。具体见后续方法实施例的描述，在此不再赘述。
下面结合本申请中提供的控制信息接收和发送方法的实施例，对本申请中提出的技术问题和难点进行具体分析和解决。
请参见图3，是本申请实施例提供的一种控制信息处理方法的流程示意图，可应用于上述图2中所述的通信系统，下面将结合附图3从网络设备和终端设备的交互侧进行描述，该方法可以包括以下步骤S301-步骤S303，可选地还可以包括步骤S304。
步骤S301：网络设备向第一终端设备发送第一物理层控制信息；第一终端设备接收网络设备发送的第一物理层控制信息。
具体地，第一物理层控制信息用于向第一终端设备指示第一索引，以及用于指示第一 终端设备在第一时间段监测第二物理层控制信息，第一索引在第一时间段内与第一终端设备对应，且用于第一终端设备确定第二物理层控制信息中与第一终端设备对应的控制信息字段。
在本申请中，第一终端设备(简述为终端设备#1)为已经接入由网络设备提供服务的服务小区的终端设备。或者说，第一终端设备已经获得了该服务小区内的用户ID，例如，该用户ID可以是上述标识1，更具体地，可以是RNTI。网络设备通过第一物理层控制信息(简述为控制信息#1)为终端设备#1指示第一索引(简述为索引#1)，其中的指示方式可以是显示也可以是隐式，本申请对此不作具体限定。该控制信息#1为用户专用(UE-specific)控制信息。即，控制信息#1为网络设备专属发送给终端设备#1的控制信息。控制信息#1与终端设备#1的用户ID相关。终端设备#1根据该用户ID确定该控制信息#1是网络设备发送给该终端设备#1的。
关于第一物理层控制信息具体如何向第一终端设备指示第一索引，可以包括显示指示方式和隐式指示方式。
首先，具体说明显式的指示方式。在控制信息#1中包括用于指示索引#1的字段。例如，包括专用字段指示索引#1,该专用字段包含的比特数与网络设备可以同时支持最大终端设备数相关。所述“同时支持最大终端设备数”也可以是指网络设备可以支持传输数据包个数的峰值。例如，通信标准规定，最大同时支持数为32，则该专用字段则为5比特。进一步地，在实际网络运营中，网络设备能够同时支持的最大终端设备数可以通过无线资源控制(Radio Resource Control，RRC)信令进行配置，例如，配置为16或者8个终端设备。或者，也可以重用控制信息#1中其它控制信息字段指示索引#1。在一种可能的实现方式中，第一物理层控制信息包括第一字段，第一物理层控制信息通过重用第一字段向第一终端设备指示第一索引。其中，第一字段包括编码调制方案指示字段、新数据指示字段、冗余版本指示字段、传输功率控制TPC指示字段和HARQ进程号指示字段中的至少一种。由于可以重用的信息字段与控制信息#1除索引#1以外指示给终端设备#1的其它控制信息内容有关，因此重用控制信息指示索引#1的具体实施方式在后续详述控制信息#1的内容的时候进一步说明。网络设备采用显式方式指示索引#1有利于终端设备#1准确理解索引#1。
其次，具体说明隐式的指示方式。网络设备通过控制信息#1隐式指示终端设备可以通过所使用的用于发送控制信息#1的时频资源位置指示索引#1。例如，网络设备可以指定S个控制资源集合(Control resource set)。在一种可能的实现方式中，S与终端设备#1接收控制信息#1的时候网络设备能够支持的最大终端设备数量一致，终端设备#1根据其收到的控制信息#1的第一个控制信道单元(Control Channel Element，CCE)或者第一个资源粒子组(Resource Element Group，REG)所在的控制资源集合索引确定索引#1。例如，终端设备#1接收到的控制信息#1的第一个CCE或者第一个REG在第二个控制资源集合，那么终端设备#1可以确定网络设备通过控制信息#1指示给该终端设备#1的索引#1为2。或者，终端设备#1接收到的控制信息#1的第一个CCE或者第一个REG在第二个控制资源集合，那么终端设备#1可以确定网络设备通过控制信息#1指示给该终端设备#1的索引#1为4，即控制资源集合索引与索引#1一一对应但是不相同，其中，一一对应关系可以由通信标准规定，也可以通过高层信令由网络设备配置给所述终端设备#1。在另一种可能的实现方式中， 每个控制资源集合内可以有L个CCE或者REG起始点，终端设备#1根据其收到的控制信息#1的第一个CCE或者第一个REG所在的控制资源集合索引以及L个起始点中第一个CCE或者第一个REG对应的起始点确定索引#1。例如，终端设备#1接收到的控制信息#1的第一个CCE或者第一个REG在第二个控制资源集合的第三个CCE或者REG起点，那么终端设备#1可以确定网络设备通过控制信息#1指示给该终端设备#1的索引#1为(2-1)*L+(3-1)。或者，终端设备#1接收到的控制信息#1的第一个CCE或者第一个REG在第二个控制资源集合的第三个CCE或者REG起点，那么终端设备#1可以确定网络设备通过控制信息#1指示给该终端设备#1的索引#1为(2-1)*L+3。
可选地，网络设备还可以将索引#1作为扰码计算变量计算生成扰码，并利用该计算得到的扰码对发送给终端设备#1的控制信息#1的信号进行加扰从而将索引#1隐式指示给终端设备#1。例如，网络设备至少通过上述终端设备标识#1或者标识#2，以及索引#1计算扰码序列；或者至少通过索引#1计算扰码序列。然后，网络设备使用该计算得到的扰码对发送给终端设备#1的控制信息#1的CRC比特序列进行加扰，或者对该控制信息#1的信息比特序列进行加扰，或者对该控制信息#1的信息比特和CRC比特进行加扰。网络设备采用隐式方式指示索引#1的方法有利于节省控制信息#1所占用的时频资源。
在一种可能的实现方式中，网络设备通过高层信令配置第一索引的最大取值；或者网络设备通过高层信令配置用于指示第一索引对应的字段包含的比特数或者有效比特数。例如，作为示例而非限制，用于表示索引#1的二进制比特数可以由网络设备通过高层信令配置的2比特、3比特、4比特等，也可以是预定义的。例如，网络设备通过RRC信令向终端设备配置用于指示索引#1的二进制比特；预定义则可以由通信标准预先约定，或者，终端设备/网络设备出厂前预定义的。可以理解的是，用于指示索引#1的二进制比特数也可以表述为在该索引#1的有效期(即第一时间段)内，网络设备同时调度/支持/服务的最大终端设备数。例如，该最大终端设备数为8，等效为采用三个二进制比特指示(表示)索引#1，因此，上述通过高层信令配置或者预定义的索引#1也可以是通过高层信令配置或者预定义的最大终端设备数。需要说明的是，上述网络设备同时调度/支持/服务的最大终端设备数可以是一个小区同时调度/支持/服务的终端设备数，也可以是由网络设备分配的一组由其服务的终端设备组中的最大终端设备数。
在本申请实施方式中，由于用于指示第一索引(索引#1)的二进制比特数可以明显小于上述标识#1或者标识#2，因此在预设时间段内利用所述第一索引区分指示不同终端设备的控制信息可以减小相关的时频资源开销(减小指示控制信息本身的开销)，同时满足eMBB和URLLC业务对传输时延和可靠性的要求，实现eMBB业务和URLLC业务的高效共存。
在一种可能的实现方式中，所述第一终端设备属于第一终端设备组；所述第一物理层控制信息还用于指示第一组索引，所述第一组索引用于标识所述第一终端设备组。所述第一终端设备根据所述第一组索引确定自身所在第一终端设备组。即网络设备还可以利用第一物理层控制信息向终端设备指示第一组索引，以使得终端设备根据第一组索引确定自身所在的终端设备组。为了方便叙述，在网络设备为终端设备分组的时候，以网络设备、终端设备#1、控制信息#1和组索引#1(第一组索引的一例)进行说明。同样地，网络设备可 以通过显式或者隐式的方式向终端设备#1指示组索引#1。
在显式指示方法中，网络设备可以通过专用字段或者重用其它字段指示组索引#1，具体可以参照网络设备显式指示索引#1的方式，在此不再赘述。
在隐式指示方法中，网络设备可以通过加扰或者在特定的时频位置发送控制信息#1向终端设备#1指示组索引#1和索引#1。例如至少通过索引#1和组索引#1计算扰码序列；又例如，通过在某个控制资源集合发送控制信息#1指示组索引#1，在该集合的某个位置发送第一个CCE或者REG指示索引#1；或者反之用第一个CCE或者REG所在的控制资源集合指示组索引#1，用第一个CCE或者REG在控制资源集合中的起始位置指示索引#1。具体实施细节与上述显式或者隐式指示索引#1的方法类似，叙述简洁考虑，此处不再赘述。在一种可能的实现方式中，网络设备通过高层信令配置第一组索引的最大取值；或者网络设备通过高层信令配置用于指示第一组索引对应的字段包含的比特数或者有效比特数。
需要说明地是，在网络设备利用控制信息#1向终端设备#1仅指示索引#1的情况下，在某个时间段(例如，某一个或者某几个传输时域单位内)对应不同索引#1的终端设备可以看作是一组终端设备。即，在某个时间段内，该网络设备的该服务小区内，仅有一组被分配了索引#1的终端设备。
此外，第一索引和第一组索引仅为说明示例，还可以为第一标识和第二标识，或者第一设备ID和第二设备ID等。该索引(或者标识，或者设备ID等)仅用于在该索引生效时间范围内(第一时间段内)标识其分配给的终端设备。
需要说明的是当所述至少一个终端设备(即终端设备组)中只包括第一终端设备时，可以认为网络设备是一对一的向第一终端设备发送的，当终端设备组中包括多个终端设备(包含第一终端设备)时，则可以认为是网络设备向终端设备组中的多个终端设备同时发送的。下面具体说明网络设备利用第一物理层控制信息向终端设备指示该终端设备的分组的时候是如何确定终端设备组中具体包括哪些终端设备的，即是如何对终端设备进行分组的。网络设备向终端设备发送控制信道的时候，根据不同终端设备的信道条件为不同终端选择不同聚合水平(Aggregation level)以保证控制信道的传输可靠性。可选地，在本申请实施方法中，网络设备可以根据传输信道质量最差的终端设备选择聚合水平，如此，网络设备可以通过向不同传输质量的终端设备发送同一个第二物理层控制信息，保证组内所有的终端设备对该第二物理层控制信息的正确接收概率超过目标正确接收概率。例如，将聚合等级1和聚合等级2的终端设备编为一组可以采用聚合等级2发送第二物理层控制信息。将聚合等级1和聚合等级8的终端设备编为一组可以采用聚合等级8发送第二物理层控制信息。后一种方法，采用聚合等级8向聚合等级1的终端设备发送第二物理层控制信息会降低用于发送第二物理层控制信息的时频资源的使用效率。因此，进一步地，网络设备可以将对应聚合水平相近的终端设备分配在一个终端设备组中，由此增加用于发送第二物理层控制信息时频资源的使用效率，以避免发送第二物理层控制信息不必要的浪费。可选地，网络设备也可以将业务类型相似的终端设备分为一组，以相似的传输调度频率以及传输时延和传输可靠性服务一组业务传输需求近似的终端设备。网络设备还可以将标识#1或者标识#2接近的终端设备分为一组，便于向终端设备指示组索引#1。例如，仅通过标识#1或者标识#2的若干低位比特指示组索引#1。
下面，具体说明第一时间段是如何定义的，在一种可能的实现方式中，网络设备预先定义第一时间段；或者网络设备通过高层信令(如RRC信令)配置第一时间段；或者网络设备通过第一物理层控制信息中的控制字段明确指示第一时间段。例如由通信标准预定义或者网络设备和/或终端设备#1出厂前预设定，本申请对此不具体限定。例如，通信标准可以预先定义控制信息#1的对应的第一时间段为1ms或者1个子帧或者1个时隙等。
接下来，对其中的网络设备如何通过第一物理层控制信息指示第一时间段进行说明。第一时间段可以是网络设备单独指示给第一终端设备(如终端设备#1)的第一索引(索引#1)的第一时间段；也可以是网络设备同时指示第一索引(索引#1)以及第一组索引(组索引#1)的第一时间段；还可以是指示第一终端设备监测第二物理层控制信息的第一时间段。即终端设备可以在指示的第一时间段内利用索引#1以及组索引#1监测控制信息#2。即本申请中的第一时间段有多种作用，其一，可用于指示第一索引的生效时间范围；其二，可用于指示第一索引以及第一组索引的生效时间范围；其三，可用于指示网络设备可能向第一终端设备发送与第一索引和/或第一组索引相关的第二物理层控制信息的时间范围以及所述第一终端设备监测所述第二物理层控制信息的时间范围。
例如，网络设备可以向终端设备指示时域单位的数量(例如，F个时域单位)。F个时域单位表示从控制信息#1所在的时域单位开始(即该时域单位为第1个时域单位)至第F个时域单位为止的时间段为第一时间段。如果系统采用了时分双工(Time Division Duplexing，TDD)方式，F个时域单位可以表示从控制信息#1所在的时域单位开始(即该时域单位为第1个时域单位)至第F个下行时域单位位置的时间段为第一时间段，关于时域单位的具体含义本申请已有说明，这里不再赘述。又例如，F个时域单位的起始可以是控制信息#1所在时域单位之后的第一个时域单位，还可以是通信标准规定的以控制信息#1为参照点的计算得到的其它时域单位。
需要说明的是，终端设备监测第二物理层控制信息的第一时间段和该第一索引生效的第四时间段可以不一样。例如，当第一物理层控制信息和第二物理层控制信息用于指示终端设备向网络设备发送数据的时候，即第一物理层控制信息和第二物理层控制信息用于调度上行传输的时候，终端设备在第一时间段根据第一索引监测第二物理层控制信息，而在第四时间段根据第二物理层控制信息的指示发送由第一索引指示的数据。此时第一时间段的起始位置在时域上位于第四时间段的起始位置之前。即第二物理层控制信息的发送时间早于终端设备真正需要利用第一索引进行上行数据发送的时间。也就是说，网络设备提前向终端设备发送第二物理层控制信息，让其在接下来的或者是附近的时域单位进行上行数据发送，让其有一小段“充分准备”的时间。
在一种可能的实现方式中，第一物理层控制信息可以与一般用于直接调度终端设备接收下行数据或者发送上行数据的控制信息采用相同的控制信息格式。所述“一般用于直接调度终端设备的控制信息”与LTE系统中用于调度终端设备接收下行数据或者发送上行数据的物理下行控制信道类似，即为本领域技术人员可以理解的现有技术，此处不再赘述，以下简称为一般调度控制信息。一般调度控制信息在调度终端设备发送或者接收数据的时候向终端设备指示发送或者接收数据具体的时频资源位置。本发明实施方法的一个例子中，第一物理层控制信息采用与一般调度控制信息相同的方法向终端设备指示时频资源。该时 频资源对应的时域范围，即上述第一索引(或者第一索引和第一组索引)的生效时间范围(第一时间段)。该时频资源对应的频域范围，即终端设备确认第二物理层控制信息包括指示其进行下行数据接收或者上行数据发送的指示信息后，在该第二物理层控制信息对应的时域单位的相应频域范围实施下行数据接收或者上行数据发送。此外，第一物理层控制信息可以通过采用上述重用一般调度控制信息字段的方法(如MCS字段，NDI字段、HARQ进程字段或者RV字段等)向终端设备指示第一索引或者第一索引和第一组索引。
步骤S302：所述网络设备在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息；所述第一终端设备在所述第一时间段内接收所述网络设备发送的第二物理层控制信息。
具体地，所述至少一个终端设备包括所述第一终端设备，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
由于本申请中，网络设备是向至少一个终端设备发送至少一个控制信息字段。因此，终端设备和控制字段之间的数量可能不对等。假设至少一个终端设备包括X个终端设备，至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数，那么可以分为以下三种情形进行讨论。
情形1：若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
具体地，在情形1下终端设备个数等于控制信息字段个数的情况下，又分为两种情况。情况1，X个终端设备均需要业务调度，即都需要进行数据的收或发，此时，控制信息字段的作用就是用于指示收或发。情况2，但是若X个终端设备中不是每一个都需要进行数据收发，但是,X个终端设备中的每一个终端设备又都有对应的控制信息字段，这说明该控制信息字段还用于指示终端设备不进行数据的收发，即说明，在该情况下，每一个终端设备都有对应的控制信息字段，不论是否进行业务调度，都需要针对自身对应的控制信息字段进行读取判断，并根据判断的结果进行业务调度。
情形2：若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；
具体地，当Y小于X，则表明接收到第二物理层控制信息的X个终端设备中有终端设备在该第二物理层控制信息中没有其对应的控制信息字段，则此时第一控制信息字段的作用仅仅是指示所述第一终端设备接收或发送数据，而关于指示终端设备不进行数据接收和发送则需要通过其他方式或者其它信息来指示。
在一种可能的实现方式中，可以通过在第二物理层控制信息中不包含终端设备的控制信息字段来指示该终端设备不进行数据的接收或发送。例如，X个终端设备中还包括第二终端设备，网络设备向第二终端设备发送第三物理层控制信息，其中，第三物理层控制信息用于向第二终端设备指示第二索引，以及用于指示第二终端设备在第二时间段监测第四物理层控制信息，第二索引用于第二终端设备确定第四物理层控制信息中与第二终端设备对应的控制信息字段，而第四物理层控制信息在第一时间段和第二时间段重合的第三时间 段内为第二物理层控制信息；在第三时间段内，若Y小于X，且Y个控制信息字段中不包括第二终端设备对应的控制信息字段，则第二物理层控制信息指示第二终端设备不进行数据的收发。即该第二物理层控制信息中有第一终端设备的控制信息字段，没有第二终端设备的控制信息字段，对于第一终端设备来说，则是通过第二物理层控制信息中包含的对应的控制信息字段来指示其进行数据的接收或发送。而对于第二终端设备来说，则是通过在第二物理层控制信息中不包含其对应的控制信息字段来指示其不需要进行数据的收发。需要说明的是，由于本情形是基于第二终端设备也接收到第二物理层控制信息，因此说明，在第二时间段和第一时间段交叠的第三时间段内，第四物理层控制信息实际上就是第二物理层控制信息。
情形3：若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
具体地，Y大于X则表明，控制信息字段个数大于终端设备个数，此时只能说明，控制信息字段是一开始就预设好的，即数目是固定的。即每个终端设备均有一个对应的控制信息字段，而剩下多余的控制信息字段则可能为空也可能是预置比特位。因此在每个终端设备都有对应的控制信息字段的情况下，则可以认为第一控制信息字段可以完整的指示第一终端设备接收或发送数据或不进行数据的收发。
基于上述情形1、2和3中，在一种可能的实现方式中，网络设备预先定义所述Y的值，此时第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发，原因见上述情形1、2和3的描述，此处不再赘述；或者网络设备向第一终端设备发送高层信令，其中，所述高层信令用于指示所述Y的值，此时Y的值可以是灵活变化的。
在第一终端设备属于第一终端设备组，且第一物理层控制信息还用于指示第一组索引的情况下，在一种可能的实现方式中，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。即网络设备可以使用控制信息#2(第二物理层控制信息的一例)的专用标识或者专用扰码指示该控制信息为控制信息#2，以区分控制信息#1或者其它的控制信息。其中，专用标识可以是控制信息格式/索引/指示/标识(control information format index/indication/flag)等；专用扰码则可以为根据小区ID或者载波ID计算出的扰码序列，具体加扰方式可以是对控制信息#2的CRC比特序列进行加扰，或者对该控制信息#2的信息比特序列进行加扰，或者对该控制信息#2的信息比特和CRC比特进行加扰。网络设备也可以根据小区ID(或者载波ID)以及控制信息#2所在的时域单位索引(例如，迷你时隙索引、时隙索引、子帧索引以及帧索引中的一种或者多种)计算扰码序列。终端设备则可以利用从第一物理层控制信息中获得的第一组索引(例如，组索引#1)对第二物理层控制信息进行解扰，识别该第二物理层控制信息是否为发送给该终端设备所在的终端设备组的第二物理层控制信息。
在一种可能的实现方式中，网络设备在第一时间段内向至少一个终端设备发送第二物理层控制信息，具体为：网络设备在第一时间段内在公共搜索空间发送第二物理层控制信息，该公共搜索空间为至少一个终端设备公用的或者是服务小区公用的搜索空间。对应地，第一终端设备在第一时间段内接收网络设备在公共搜索空间发送的第二物理层控制信息，公共搜索空间为第一终端设备所在终端设备组所公用的或者是服务小区公用的搜索空间， 终端设备组至少包括第一终端设备。
从终端设备侧来讲，第一终端设备(终端设备#1)根据第一物理层控制信息(控制信息#1)确定第一索引(索引#1)之后，第一终端设备利用索引#1在第一时间段内监测第二物理层控制信息(控制信息#2)。由于控制信息#2至少发给终端设备#1，即控制信息#2也可以发给其它终端设备，如终端设备#2和终端设备#3。也即是说，控制信息#2可以同时发送给多个终端设备。为了接收控制信息的终端设备能判断其接收到的控制信息是否正确，每个控制信息需要添加CRC校验比特，例如16比特CRC校验比特或者24比特CRC校验比特或者其它数量的CRC校验比特。例如，如果控制信息#2仅发送给一个终端设备，参照现有LTE系统，该控制信息2需要添加至少16比特CRC校验比特，以使得接收该控制信息#2的终端设备能够利用该CRC校验比特确定接收到的控制信息是否正确。而采用本申请的实施方式后，控制信息#2可以同时发送给多个终端设备，一个控制信息#2仅需要添加一份CRC校验比特，所有接收该控制信息#2的终端设备都能够利用这一份CRC校验比特确定接收到的控制信息是否正确，如此一来便可以有效地减小发送控制信息#2所使用的时频资源。进一步地，终端设备#1可以通过专用标识或者专用扰码确定控制信息#2是否是发送给自己的或者自己所在的终端设备组的，即终端设备#1可以确定自己是否是控制信息#2的潜在接收终端设备。
进一步地，具体说明终端设备如何监测第一物理层控制信息和第二物理层控制信息。假设第一终端设备以M个时域单位为周期监测所述第一物理层控制信息，且以N个时域单位为周期监测所述第二物理层控制信息，其中，M和N均为大于或者等于1的正整数。M和N的取值可以由网络设备通过高层信令(如RRC信令)进行配置，也可以预先预定，例如由通信标准预定义或者网络设备和/或终端设备出厂前预设定。
在一个具体的应用场景中，例如M个时域单位的总时长为1ms或者0.5ms，N等于1。如M个时域单位总时长为1ms，采用15kHz子载波间隔，一个时域单位为一个包含两个时域符号的迷你时隙，M等于7。又例如，M个时域单位总时长为0.5ms，采用15kHz子载波间隔，一个时域单位为一个迷你时隙，M等于3，每0.5ms里包含的3个迷你时隙分别包含2个、2个和3个时域符号，或者分别包含3个、2个、2个时域符号。又例如M个时域单位总时长为1ms，采用30kHz子载波间隔，一个时域单位为一个时隙，M等于4，每个时隙包含7个时域符号，一个时隙的持续时间为0.25ms。再例如M个时域单位总时长为1ms，采用60kHz子载波间隔，一个时域单位为一个时隙，M等于8，每个时隙包含7个时域符号，一个时隙的持续时间为0.125ms。上述关于M和N的举例仅为了方便理解本申请的申请内容，本申请对此不作具体限制。在又一个例子中，根据通信标准协议规定，终端设备可以理解所述索引#1(或者索引#1和组索引#1)的生效时间范围的截止时间为下一个可能收到第一物理层控制信息时域单位之前(即下一个终端设备监测第一控制信道的时域单位之前)，而起始时间可以是第一物理层控制信息所在的时域单位或者第一物理层控制信息所在的时域单位的下一个时域单位或者第一物理层控制信息指定的时域单位。又或者，根据通信标准协议规定，终端设备可以理解所述索引#1(或者索引#1和组索引#1)的生效时间范围的截止时间为下一个收到第一物理层控制信息时域单位之前(即下一个终端设备监测到的第一物理层控制信息所在的时域单位之前)，而起始时间可以是第一物理层控制信 息所在的时域单位或者第一物理层控制信息所在的时域单位的下一个时域单位或者第一物理层控制信息指定的时域单位。
可选地，数值M大于数值N。网络设备准备调度终端设备接收下行数据或者发送上行数据，并通过第一物理层控制信息为终端设备配置一部分与调度相关的信息。终端设备接收到第一物理层控制信息后，以比监测第一物理层控制信息更密集的频率监测第二物理层控制信息。也即是说，终端设备监测第二物理层控制信息的周期小于监测第一物理层控制信息的周期。网络设备利用第二物理层控制信息实际调度第一终端设备接收下行数据或者发送上行数据。这样做，即使调度单位为比较小的时域单位，也不会明显增加用于发送控制信息的时频资源。例如，在没有数据传输的时候，第一终端设备以较大的周期监测第一物理层控制信息，在网络设备准备(计划)调度与该终端设备相应的数据传输(发送上行数据或者接收下行数据)的时候，终端设备以较小的监测周期监测第二物理层控制信息及时获得调度信息。如此一来，在保证调度效率相同的情况下，有效节省终端设备用于监测控制信息的能量。或者说，即使调度单位为比较小的时域单位，采用此种调度方法也不会明显提升终端设备监测控制信息时所消耗的能量。更进一步地，M个较小时间调度单位与一个较大时间调度单位相当，上述第一物理层控制信息所使用的时频资源与采用较大时间调度单位时控制信息使用的时频资源相当。上述第二物理层控制信息采用公共控制信息的方法，调度多个终端设备仅花费一份CRC校验比特开销又无需指示终端设备的较长标识(耗费较多的比特信息)，有效地节省了第二物理层控制信息使用的时频资源。综上，使用本申请的实施方法可以达到即使采用较小的时间调度单位，用于传输控制信息的时频资源也不会明显上升，终端设备用于监测控制信息能够与采用较大时间调度单位相当，且能提供更好的调度机会。为了更好地减小第二物理层控制信息所占用的时频资源，可以尽可能多地由第一物理层控制信息承载调度相关的指示信息。
以下结合图4-图8，具体说明监测第一物理层控制信息和第二物理层控制信息的具体时序位置，需要说明的是，图4-图8的上下两个图对应同一个时域，只是为了方便说明，分别站在第一物理层控制信息和第二物理层控制信息的角度进行的描述。其中，
图4是本申请实施例提供的一种第一物理层控制信息和第二物理层控制信息的监测时序图；图4中时序图中的第1个时域单位为终端设备监测第一物理层控制信息的位置，在监测到第一物理层控制信息之后，紧接着就在第一时间段内(第2个时域单位-第8个时域单位)监测第二物理层控制信息，之后，又在监测第一物理层控制信息的周期处(第9个时域单位)继续监测第一物理层控制信息。
图5是本申请实施例提供的另一种第一物理层控制信息和第二物理层控制信息的监测时序图；图5与图4的区别在于，在第1个时域单位监测到第一物理层控制信息之后，就可以立即在从该时域单位内的其它频域处开始监测查找对应的第二物理层控制信息，即第一物理层控制信息和第二物理层控制信息可以在同一个时域单位的不同频域上进行发送。
图6是本申请实施例提供的又一种第一物理层控制信息和第二物理层控制信息的监测时序图；图6与图4和图5的区别在于接收第一物理层控制信息的时间和第一时间段的起始时间上可以相隔多个时域单位。
图7是本申请实施例提供的又一种第一物理层控制信息和第二物理层控制信息的监测 时序图；图7和图6的区别在于接收第一物理层控制信息的时间和第一时间段的起始时间上可以相隔更多的时域单位，甚至可以跨度几个监测第一物理层控制信息的周期。
图8是本申请实施例提供的又一种第一物理层控制信息和第二物理层控制信息的监测时序图；图8与图4的区别在于，监测第一物理层控制信息的时间点可以是除了第一时间段以外的其它所有时域单位。即只要监测到第一物理层控制信息，则在对应的第一时间段内无需再监测第一物理层控制信息；而如果没有监测到第二物理层控制信息，则可以在每个时域单位上监测第一物理层控制信息，当然也可以间隔一定的时域单位来监测第一物理层控制信息，本申请对此不作具体限定。
以上为结合附图4-附图8对监测第一物理层控制信息和第二物理层控制信息的具体时序位置的几种可实施的方式进行的说明，可以理解的是，本申请还包含其它可能的实施方式，在此不再一一列举，
综上，可以理解的是，网络设备向第一终端设备发送第一物理层控制信息的目的在于为终端设备分配临时识别标识(索引#1)，而向终端设备发送第二物理层控制信息的目的在于指示终端设备接收下行数据或者发送上行数据，或者不进行任何数据的传输。进一步地，该下行数据或者上行数据为该终端设备的专有数据。或者说，该下行数据或者上行数据不是广播信息或者系统信息。
步骤S303：所述第一终端设备根据所述第一索引确定所述第二物理层控制信息中所述第一终端设备对应的所述第一控制信息字段。
具体地，关于第一终端设备如何确定控制信息#2中是否包含发送给自己的控制信息字段需要进行确认。下面结合示例性实现方式具体说明终端设备#1如何根据索引#1确定控制信息#2中是否包含了发送给自己的控制信息字段，以及进一步确定发送给自己的控制信息内容的。
方式1：
在方式1中，所述第二物理层控制信息(控制信息#2)包括所述第一终端设备组中的各个终端设备的控制信息字段，所述控制信息字段个数Y与本次需要指示的终端设备的个数X一致。例如，网络设备确定本次需要指示2个终端设备，控制信息#2包含2个控制信息字段，每个控制信息字段对应一个被指示的终端设备，或者，本次需要指示4个终端设备，则包含4个控制信息字段，每个控制信息字段对应一个被指示的终端设备。采用方式1的有益效果是，当所指示的(所调度的)终端设备数量较少的时候，可以有效节省控制信息#2所占的时频资源，即发送控制信息#2使用的时频资源。方式1对应的一个具体应用场景如图9所示，图9是本申请实施例提供的控制信息发送、接收方法的具体应用场景示意图，当前网络设备能够同时支持的最大终端设备数量为8(或者说控制信息#1中用于指示索引#1的比特数为3，或者索引#1的取值为从0到7的整数)，本次调度控制信息#2用于指示与索引0、索引1、索引5、索引7相应的四个终端设备。控制信息#2包含4个控制信息字段，每个集合前面包含终端设备的索引#1字段，即每个控制信息字段由相应的索引#1字段指示。方式1对应的另一个具体应用场景如图10所示，图10是本申请实施例提供的控制信息发送、接收方法的另一个具体应用场景示意图，每个控制信息字段对应的索引#1也可以显式地包含在该控制信息字段里面。或者，每个控制信息字段可以由至少根据其 索引#1进行计算的扰码序列进行加扰。所述扰码序列除根据索引#1进行计算以外，还可以将所指示的终端设备的标识#1或者标识#2作为计算参数。或者，该扰码序列至少根据索引#1以及所指示的终端设备的标识#1或者标识#2以及控制信息#2所在的时域单位索引(例如，迷你时隙索引、时隙索引、子帧索引以及帧索引中的一种或者多种)进行计算。
可选地，在所述控制信息字段个数Y随着本次需要指示的终端设备的个数X改变的情况下，网络设备可以发送第五控制信息，指示第二物理层控制信息所包含的字段数目Y。终端设备可以根据第五控制信息指示的字段数目Y对第二物理层控制信息进行检测。这种实施方法有助于减小终端设备检测第二物理层控制信息时的计算复杂度。
方式2：
在方式2中，所述第二物理层控制信息包括所述第一终端设备组中的各个终端设备的控制信息字段，所述控制信息字段个数Y与当前网络设备能够同时支持的最大终端设备数量一致，或者与网络设备通过RRC信令配置的最大支持终端设备数量一致。即无论网络设备本次调度指示几个终端设备，控制信息#2包含的控制信息字段个数Y的数目是固定不变的。例如，当前网络设备能够同时支持的最大终端设备数量为8，无论本次调度指示几个终端设备，控制信息#2都固定包含8个控制信息字段。方式2对应的一个具体应用场景如图11所示，图11是本申请实施例提供的控制信息发送、接收方法的又一个具体应用场景示意图；各个控制信息字段按顺序排列，当前网络设备能够同时支持的最大终端设备数量为8，本次调度控制信息#2用于指示与索引0、索引1、索引5、索引7相应的四个终端设备。集合0、集合1、集合5和集合7中包含有内容(即发送给相应终端设备的指示信息或指示信息集合)，其它集合不包含内容(所有控制信息比特置零或者置为默认值)。图11中，不包含内容的集合由灰色标注。采用方式2的有益效果是，保持控制信息#2的整体信息比特数目一致，有利于减少终端设备盲目检测的次数，进而节省终端设备的电量。
可以理解的是，即使如上述方式2中所述，控制信息字段个数Y与网络设备当前支持的最大终端数目一致，也可以采用方式1中所述的方法显式或者隐式指示该字段索引。
在上述方式1或者方式2中，不同控制信息字段的大小可以相同也可以不同。如果控制信息字段的大小不同，可以在每一个控制信息字段的起始位置有明确标识或者终止位置有明确标识，以便于终端设备接收到控制信息#2之后能够正确的区分各个控制信息字段。无论采用上述方式1或者方式2，终端设备#1均可以根据索引#1，或者索引#1和组索引#1确定上述控制信息#2中是否包含指示给自己的控制信息。例如，网络设备采用方式1发送控制信息#2，终端设备#1可以根据显式或者隐式指示的索引#1(或者索引#1和组索引#1)是否与自己的索引#1(或者索引#1和组索引#1)一致判断该控制信息#2是否包含有发送给自己的控制信息字段。网络设备采用方式2发送控制信息#2，终端设备#1可以根据显式或者隐式指示的索引#1(或者索引#1和组索引#1)定位到与自己的索引#1(或者索引#1和组索引#1)一致的控制信息字段，并根据该字段是否包含内容(具体方法如上所述)判断该控制信息#2是否包含有发送给自己的控制信息字段。
可以理解的是，若终端设备在整个第一时间段内没有接收到或监测到第二物理层控制信息，那么则可以理解为网络设备指示该终端设备不发送且不接收数据。
可选地，本申请实施例还可以包括以下步骤S304。
步骤S304：所述第一终端设备根据所述第一控制信息字段使用所述资源指示信息所指示的资源接收或发送数据。
具体地，所述第一物理层控制信息包括资源指示信息；所述第一控制信息字段指示所述第一终端设备使用所述资源指示信息所指示的资源接收或者发送数据，所述资源包括频域资源，或者时域资源或者时频资源。即，将时域资源和/或频域资源放在专用且在第一时间段内只发送一次的第一物理层控制信息中，避免在后续可能多次发送的第二物理层控制信息中重复发送该资源指示信息，节省控制信息的开销。
在一种可能的实现方式中，第一物理层控制信息还包括第一参数集合；第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、第一索引和第一时间段中的至少一种；第一控制信息字段指示第一终端设备根据第一传输相关信息接收或发送数据。第一终端设备根据第一控制信息字段以及第一参数集合接收或发送数据。
在一种可能的实现方式中，第一物理层控制信息还包括第二传输相关信息；第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、第一索引和第一时间段中的至少一种；第二物理层控制信息还包括第三参数集合；第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示和下行分配索引DAI中的至少一种；第一控制信息字段指示第一终端设备根据第二参数集合和第三参数集合接收或发送数据。第一终端设备根据第一控制信息字段以及第二参数集合和第三参数集合接收或发送数据。
接下来，通过举例来展开说明第一物理层控制信息以及第二物理层控制信息具体承载的内容：
示例1:
第一物理层控制信息承载下述信息中的至少一种：
①时频资源指示信息
②MCS(索引)
③HARQ process(索引)
④NDI
⑤RV(索引)
⑥HARQ-ACK feedback时频资源指示
⑦DAI
⑧分配给所述终端设备的索引(包含第一索引，或者第一索引和第一组索引)
⑨时间范围
其中，所述时频资源指示信息可以是第一时间段内的某一段频域资源。即终端设备接收到第二物理层控制信息之后，即在第二物理层控制信息所在的时域单位内的相应频域资源进行发送或者接收信号。所述时频资源指示信息也可以是第一时间段内的第二物理层控制信息所在时域单位内的一块时频资源。例如，第二物理层控制信息所在时域单位内的一 个迷你时隙内的一段频域资源。即终端设备接收到第二物理层控制信息之后，即在第二物理层控制信息所在的时域单位内的相应的时频资源进行发送或者接收信号。第一物理层控制信息还用于指示此次调度是用于调度终端设备接收下行数据还是发送上行数据。需要说明的是，当第一物理层控制信息中有指示时域资源的话，便可以只在对应的时域单位或者在临近的时域单位监听第二物理层控制信息，而无需在整个第一时间段内进行监听。
若第二物理层控制信息仅仅指示是否调度的时候，第二物理层控制信息可以发送所调度(所指示)的终端设备的第一索引，或者根据第一索引排列比特，可选地，比特为0表示此次没有调度，比特为1表示此次实施调度。例如当前网络设备同时调度终端设备数目为8，第二物理层控制信息包含8比特(不含CRC校验位)，从左至右(或者从右至左)每比特对应一个终端设备，对应比特为0时表示此次没有被调度，对应比特为1时表示此次被调度了。其中的“此次”可以表示控制信息#2所在的时域单位，或者由通信标准规定的控制信息#2指示生效的时域单位或者时域单位集合。此种实施方法为上述方式2的一个例子，即索引#1由比特顺序指示，每个控制信息字段仅包含1比特指示信息。
此外，第二物理层控制信息还可以为每次调度指示下行分配索引(Downlink Assignment Index，DAI)比特，例如对于第一终端设备(或者某一个由第二物理层控制信息调度的终端设备)的每个第二物理层控制信息调度的数据独立反馈HARQ确认信息(HARQACKnowledge，HARQ-ACK)比特(每次反馈至少一比特HARQ-ACK比特)或者每几个第二物理层控制信息调度的数据一起反馈HARQ-ACK比特(每次反馈至少一比特HARQ-ACK比特)。这种情况下，在一个第一物理层控制信息调度的第一时间段的范围内(或者说，由第一物理层控制信息指示的索引#1或者索引#1和组索引#1的生效的第一时间段范围内)，每个第二物理层控制信息调度的传输可以属于相同HARQ进程。每个第二物理层控制信息调度传输的可以是一个传输块(transport block)，或者一个编码块，或者一个编码块组。
示例2:
第一物理层控制信息承载以下信息中的至少一种：
①时频资源指示信息
②MCS索引
③HARQ-ACK feedback时频资源指示
④DAI
⑤分配给所述终端设备的索引(包含第一索引，或者第一索引和第一组索引)
⑥时间范围
第二物理层控制信息承载以下信息中的至少一种：
①HARQ process index
②NDI
③RV索引
④HARQ-ACK feedback时频资源指示
⑤DAI
在示例2的情况下，在一个第一物理层控制信息调度的第一时间段内，每个第二物理 层控制信息调度的传输可以属于不同混合自动重传请求(Hybrid Automatic Repeat Req，HARQ)进程。可以仅由第一物理层控制信息包含HARQ-ACK feedback时频资源指示和DAI信息，也可以是第一物理层控制信息包含HARQ-ACK feedback时频资源指示而第二物理层控制信息包含DAI信息。这种情况下，所有第一物理层控制信息在第一时间段内接收到的数据或者发送的数据在一个HARQ-ACK ACKnowledge消息中反馈。还可以仅由第二物理层控制信息包含HARQ-ACK feedback时频资源指示和DAI信息，如此一来，每个第二物理层控制信息调度的接收数据或者发送数据分别对应不同的HARQ-ACK比特(可以包含在一个HARQ-ACK消息中，也可以包含在不同的HARQ-ACK消息中，取决于网络设备的配置和指示)。如果网络设备调度终端设备发送数据，由终端设备向网络设备反馈与该数据相应的HARQ-ACK比特。如果网络设备调度终端设备接收数据，由网络设备向终端设备反馈与该数据相应的HARQ-ACK比特。
此外，在示例2中，网络设备可以在第一物理层控制信息中重用调制编码方案(Modulation and Coding Scheme，MCS)索引字段、新数据指示(New data indicator，NDI)字段、HARQ进程字段以及冗余版本(Redundancy Version，RV)字段中的一个字段或者一个以上字段指示分配给所述终端设备的第一索引。或者网络设备可以在第一物理层控制信息中重用MCS索引字段、NDI字段、HARQ进程字段以及RV字段中的一个字段或者一个以上字段指示分配给所述终端设备的第一索引和第一组索引。又或者，网络设备可以在第一物理层控制信息中重用MCS索引字段、NDI字段、HARQ进程字段以及RV字段中的一个字段或者一个以上字段指示所述第一物理层控制信息生效的第一时间段范围内(或者第一索引生效的第一时间段，或者该终端设备监测第二物理层控制信息的第一时间段)。
综上描述，并结合本申请中提到的其中一种应用场景(eMBB业务和URLLC业务高效共存)，可以理解的是，第一物理层控制信息的主要作用是告知第一终端设备接下来一段时间内若要进行业务传输的话，所需要使用的时频资源以及传输策略等。即网络设备在获知第一终端设备需要进行资源传输的情况下，向第一终端设备发送第一物理层控制信息，告诉终端设备在接下来的时间范围内，在具体哪些资源上以及以何种方式进行数据传输。但是因为考虑到URLLC业务的随机性，因此不确定在接下来的时间范围内，是否一定可以按照“原计划”进行传输，所以还需要在后续更临近对应时域资源的位置处进一步通知确认第一终端设备知否最终按照“原计划”执行数据传输，以满足URLLC业务的随机传输要求。
当然，若没有URLLC业务的随机到来，即只以较小时域单位传输eMBB业务的话，也可以避免由于原有时域单位被划分成n分，而需要将控制信息中的所有控制信息内容重复发送n次，所浪费的控制信息所占用的资源。并且在终端的角度来说，若只是按照现有的技术思路，可能会导致终端设备在n个时域单位上都需要监测是否有自己的控制信息，但是采用本申请中的方案，只需要在接收到第一物理层控制信息后对应的第一时间段内进行监测，节省了终端设备的开销。
上述详细阐述了本申请实施例的方法，下面提供了本申请实施例的装置。
请参见图12，图12是本申请实施例提供的一种网络设备的结构示意图，该网络设备 可以包括第一发送单元101和第二发送单元102，其中，各个单元的详细描述如下。
第一发送单元101，用于向第一终端设备发送第一物理层控制信息，所述第一物理层控制信息用于向所述第一终端设备指示第一索引，以及用于指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引用于所述第一终端设备确定所述第二物理层控制信息中与所述第一终端设备对应的控制信息字段；以及
第二发送单元102，用于在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，所述至少一个终端设备包括所述第一终端设备，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，第二发送单元102，具体用于：
在所述第一时间段内在公共搜索空间发送所述第二物理层控制信息，所述公共搜索空间为所述至少一个终端设备公用的或者是服务小区公用的搜索空间。
可选的，所述至少一个终端设备属于第一终端设备组；所述第一物理层控制信息还用于指示第一组索引，所述第一组索引用于标识所述第一终端设备组。
可选的，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
可选的，所述第一物理层控制信息包括资源指示信息；所述第一控制信息字段指示所述第一终端设备使用所述资源指示信息所指示的资源接收或者发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
可选的，所述第一物理层控制信息包括第一字段，所述第一字段包括编码调制方案指示字段、新数据指示字段、冗余版本指示字段、传输功率控制TPC指示字段和HARQ进程号指示字段中的至少一种；所述第一物理层控制信息用于向所述第一终端设备指示第一索引，包括：
所述第一物理层控制信息用于通过重用所述第一字段指示所述第一索引。
可选的，网络设备10还包括：
第一配置单元，用于通过高层信令配置所述第一索引的最大取值；或者
第二配置单元，用于通过高层信令配置用于指示所述第一索引对应的字段包含的比特数或者有效比特数。
可选的，网络设备10还包括：
定义单元，用于预先定义所述第一时间段；或者
第三配置单元，用于通过高层信令配置所述第一时间段；或者
指示单元，用于通过所述第一物理层控制信息指示所述第一时间段。
可选的，所述至少一个终端设备包括X个终端设备，所述至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数；
若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；
若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，所述X个终端设备中还包括第二终端设备；网络设备10还包括：
第三发送单元，用于向所述第二终端设备发送第三物理层控制信息，所述第三物理层控制信息用于向所述第二终端设备指示第二索引，以及用于指示所述第二终端设备在第二时间段监测第四物理层控制信息，所述第二索引用于所述第二终端设备确定所述第四物理层控制信息中与所述第二终端设备对应的控制信息字段，其中，所述第四物理层控制信息在所述第一时间段和所述第二时间段重合的第三时间段内为所述第二物理层控制信息；在所述第三时间段内，若所述Y小于所述X，且所述Y个控制信息字段中不包括所述第二终端设备对应的控制信息字段，所述第二物理层控制信息指示所述第二终端设备不进行数据的收发。
可选的，网络设备10还包括：
预定义单元，用于预先定义所述Y的值，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；或者
第四发送单元，用于向所述第一终端设备发送高层信令，其中，所述高层信令用于指示所述Y的值。
可选的，所述第一物理层控制信息还包括第一参数集合；所述第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；
所述第一控制信息字段指示所述第一终端设备根据所述第一传输相关信息接收或发送数据。
可选的，所述第一物理层控制信息还包括第二传输相关信息；所述第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；
所述第二物理层控制信息还包括第三参数集合；所述第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACKfeedback时频资源指示和下行分配索引DAI中的至少一种；
所述第一控制信息字段指示所述第一终端设备根据所述第二参数集合和所述第三参数集合接收或发送数据。
需要说明的是，本申请实施例中所描述的网络设备10中各功能单元的功能可参见上述图2-图11所述的方法实施例的相关描述，此处不再赘述。
请参见图13，图13是本申请实施例提供的一种终端设备的结构示意图，所述终端设备为第一终端设备，该第一终端设备可以包括第一接收单元201、第二接收单元202和确定单元203，其中，各个单元的详细描述如下。
第一接收单元201，用于接收网络设备发送的第一物理层控制信息，所述第一物理层 控制信息指示第一索引，以及指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引在所述第一时间段内与所述第一终端设备对应；
第二接收单元202，用于在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
确定单元203，用于根据所述第一索引确定所述第二物理层控制信息中所述第一终端设备对应的所述第一控制信息字段。
可选的，第二接收单元202，具体用于：
在所述第一时间段内接收所述网络设备在公共搜索空间发送的所述第二物理层控制信息，所述公共搜索空间为所述第一终端设备所在终端设备组所公用的或者是服务小区公用的搜索空间，所述终端设备组至少包括所述第一终端设备。
可选的，所述第一物理层控制信息包括资源指示信息；终端设备20还包括：
第一传输单元，用于根据所述第一控制信息字段使用所述资源指示信息所指示的资源接收或发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
可选的，所述第一物理层控制信息还指示第一组索引；终端设备20还包括：
第二确定单元，用于根据所述第一组索引确定自身所在第一终端设备组。
可选的，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
可选的，所述第一终端设备组包括X个终端设备，所述至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数；
若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；
若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，所述第一物理层控制信息还包括第一参数集合；所述第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；终端设备20还包括：
第二传输单元，用于根据所述第一控制信息字段以及所述第一参数集合接收或发送数据。
可选的，所述第一物理层控制信息还包括第二参数集合；所述第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；
所述第二物理层控制信息还包括第三参数集合；所述第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK  feedback时频资源指示和下行分配索引DAI中的至少一种；
终端设备20还包括：
第三传输单元，用于根据所述第一控制信息字段以及所述第二参数集合和所述第三参数集合接收或发送数据。
可选的，终端设备20还包括：
监测单元，用于以M个时域单位为周期监测所述第一物理层控制信息，且以N个时域单位为周期监测所述第二物理层控制信息，其中，M和N均为大于或者等于1的正整数，且M大于N。
需要说明的是，本申请实施例中所描述的终端设备20中各功能单元的功能可参见上述图2-图11所述的方法实施例的相关描述，此处不再赘述。
参见图14，图14是本申请实施例提供的另一种网络设备的结构示意图。如图14所示，网络设备30包括处理器301、存储器302和收发器303。其中处理器301、存储器302和收发器303可以通过总线或其他方式连接。
可选的，网络设备30还可以包括网络接口304和电源模块305。
其中，处理器301可以是中央处理器(CPU)，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)，现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多于一个微处理器组合，DSP和微处理器的组合等。
存储器302用于存储指令，具体实现中，存储器302可以采用只读存储器(英文：Read-Only Memory，简称：ROM)或随机存取存贮器(英文：Random Access Memory，简称：RAM)，在本申请实施例中，存储器302用于存储会话连接建立程序代码。
收发器303用于收发信号。用于和其它网络设备通信，例如和其它基站或者终端设备等进行数据的接收或发送。
网络接口304用于网络设备30与其他设备进行数据通信。该网络接口304可以为有线接口或无线接口，通过有线或无线网络将本网络设备与其它网络设备例如终端设备、基站、服务器、安全网关等进行通信连接。
电源模块305用于为网络设备30的各个模块供电。
处理器301用于调用存储器302中存储的指令来执行如下操作：
处理器301，用于通过收发器303向第一终端设备发送第一物理层控制信息，所述第一物理层控制信息用于向所述第一终端设备指示第一索引，以及用于指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引用于所述第一终端设备确定所述第二物理层控制信息中与所述第一终端设备对应的控制信息字段；以及
处理器301，用于通过收发器303在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，所述至少一个终端设备包括所述第一终端设备，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字 段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，处理器301用于通过收发器303在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，具体为：
通过收发器303在所述第一时间段内在公共搜索空间发送所述第二物理层控制信息，所述公共搜索空间为所述至少一个终端设备公用的或者是服务小区公用的搜索空间。
可选的，所述至少一个终端设备属于第一终端设备组；所述第一物理层控制信息还用于指示第一组索引，所述第一组索引用于标识所述第一终端设备组。
可选的，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
可选的，所述第一物理层控制信息包括资源指示信息；所述第一控制信息字段指示所述第一终端设备使用所述资源指示信息所指示的资源接收或者发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
可选的，所述第一物理层控制信息包括第一字段，所述第一字段包括编码调制方案指示字段、新数据指示字段、冗余版本指示字段、传输功率控制TPC指示字段和HARQ进程号指示字段中的至少一种；所述第一物理层控制信息用于向所述第一终端设备指示第一索引，包括：
所述第一物理层控制信息用于通过重用所述第一字段指示所述第一索引。
可选的，处理器301还用于：
通过高层信令配置所述第一索引的最大取值；或者
通过高层信令配置用于指示所述第一索引对应的字段包含的比特数或者有效比特数。
可选的，处理器301还用于：
预先定义所述第一时间段；或者
通过高层信令配置所述第一时间段；或者
通过所述第一物理层控制信息指示所述第一时间段。
可选的，所述至少一个终端设备包括X个终端设备，所述至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数；
若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；
若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，所述X个终端设备中还包括第二终端设备；处理器301还用于：
通过收发器303向所述第二终端设备发送第三物理层控制信息，所述第三物理层控制信息用于向所述第二终端设备指示第二索引，以及用于指示所述第二终端设备在第二时间段监测第四物理层控制信息，所述第二索引用于所述第二终端设备确定所述第四物理层控制信息中与所述第二终端设备对应的控制信息字段，其中，所述第四物理层控制信息在所述第一时间段和所述第二时间段重合的第三时间段内为所述第二物理层控制信息；在所述 第三时间段内，若所述Y小于所述X，且所述Y个控制信息字段中不包括所述第二终端设备对应的控制信息字段，所述第二物理层控制信息指示所述第二终端设备不进行数据的收发。
可选的，处理器301还用于：
预先定义所述Y的值，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；或者
通过收发器303向所述第一终端设备发送高层信令，其中，所述高层信令用于指示所述Y的值。
可选的，所述第一物理层控制信息还包括第一参数集合；所述第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；所述第一控制信息字段指示所述第一终端设备根据所述第一传输相关信息接收或发送数据。
可选的，所述第一物理层控制信息还包括第二传输相关信息；所述第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；所述第二物理层控制信息还包括第三参数集合；所述第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示和下行分配索引DAI中的至少一种；所述第一控制信息字段指示所述第一终端设备根据所述第二参数集合和所述第三参数集合接收或发送数据。
需要说明的是，本申请实施例中所描述的网络设备30中各功能单元的功能可参见上述图2-图11所述的方法实施例的相关描述，此处不再赘述。
参见图15，图15是本申请实施例提供的另一种终端设备的结构示意图，该终端设备可为第一终端设备。如图15所示，终端设备包括处理器401、存储器402和收发器403。其中处理器401、存储器402和收发器403可以通过总线或其他方式连接。
可选的，终端设备还可以包括网络接口404和电源模块405。
其中，处理器401可以是中央处理器(CPU)，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)，现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多于一个微处理器组合，DSP和微处理器的组合等。
存储器402用于存储指令，具体实现中，存储器402可以采用只读存储器(英文：Read-Only Memory，简称：ROM)或随机存取存贮器(英文：Random Access Memory，简称：RAM)，在本申请实施例中，存储器402用于存储会话连接建立程序代码。
收发器403用于收发信号。用于和其它网络设备通信，例如和其它基站或者安全网关等进行数据的接收或发送。
网络接口404用于终端设备与其他设备进行数据通信。该网络接口404可以为有线接 口或无线接口，通过有线或无线网络将本网络设备与其它网络设备例如终端设备、基站、服务器、安全网关等进行通信连接。
电源模块405用于为终端设备的各个模块供电。
处理器401用于调用存储器402中存储的指令来执行如下操作：
处理器401，用于通过收发器403接收网络设备发送的第一物理层控制信息，所述第一物理层控制信息指示第一索引，以及指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引在所述第一时间段内与所述第一终端设备对应；
处理器401，还用于通过收发器403在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
处理器401，还用于根据所述第一索引确定所述第二物理层控制信息中所述第一终端设备对应的所述第一控制信息字段。
可选的，处理器401还用于通过收发器403在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，具体为：
通过收发器403在所述第一时间段内接收所述网络设备在公共搜索空间发送的所述第二物理层控制信息，所述公共搜索空间为所述第一终端设备所在终端设备组所公用的或者是服务小区公用的搜索空间，所述终端设备组至少包括所述第一终端设备。
可选的，所述第一物理层控制信息包括资源指示信息；处理器401还用于：
根据所述第一控制信息字段使用所述资源指示信息所指示的资源通过收发器403接收或发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
可选的，所述第一物理层控制信息还指示第一组索引；处理器401还用于：
根据所述第一组索引确定自身所在第一终端设备组。
可选的，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
可选的，所述第一终端设备组包括X个终端设备，所述至少一个控制信息字段包括Y个控制信息字段，其中，X和Y均为正整数；
若Y等于X，所述Y个控制信息字段与所述X个终端设备一一对应，且所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
若Y小于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据；
若Y大于X，所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
可选的，所述第一物理层控制信息还包括第一参数集合；所述第一参数集合包括调制与编码方案MCS索引、混合自动重传请求进程HARQ process索引、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；处理器401还用于：
根据所述第一控制信息字段以及所述第一参数集合通过收发器403接收或发送数据。
可选的，所述第一物理层控制信息还包括第二参数集合；所述第二参数集合包括调制与编码方案MCS索引、HARQ确认反馈HARQ-ACK feedback时频资源指示、下行分配索引DAI、所述第一索引和所述第一时间段中的至少一种；
所述第二物理层控制信息还包括第三参数集合；所述第三参数集合包括HARQ确认索引HARQ process index、新数据指示NDI、冗余版本RV索引、HARQ确认反馈HARQ-ACK feedback时频资源指示和下行分配索引DAI中的至少一种；
处理器401还用于：
根据所述第一控制信息字段以及所述第二参数集合和所述第三参数集合通过收发器403接收或发送数据。
可选的，处理器401还用于：
以M个时域单位为周期监测所述第一物理层控制信息，且以N个时域单位为周期监测所述第二物理层控制信息，其中，M和N均为大于或者等于1的正整数，且M大于N。
需要说明的是，本申请实施例中所描述的终端设备40中各功能单元的功能可参见上述图2-图11所述的方法实施例的相关描述，此处不再赘述。
本申请实施例还提供一种计算机存储介质，其中，该计算机存储介质可存储有程序，该程序执行时包括上述方法实施例中记载的任意一种控制信息发送、接收方法的部分或全部步骤。
本申请实施例还提供一种计算机程序，该计算机程序包括指令，当该计算机程序被计算机执行时，使得计算机可以执行任意一种控制信息发送、接收方法的部分或全部步骤。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些步骤可能可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本申请所必须的。
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，可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，例如上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各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。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
上述集成的单元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全部或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(可以为个人计算机、服务器或者网络设备等，具体可以是计算机设备中的处理器)执行本申请各个实施例上述方法的全部或部分步骤。其中，而前述的存储介质可包括：U盘、移动硬盘、磁碟、光盘、只读存储器(Read-Only Memory，缩写：ROM)或者随机存取存储器(Random Access Memory，缩写：RAM)等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (31)

  1. 一种控制信息发送方法，其特征在于，包括：
    向第一终端设备发送第一物理层控制信息，所述第一物理层控制信息用于向所述第一终端设备指示第一索引，以及用于指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引用于所述第一终端设备确定所述第二物理层控制信息中与所述第一终端设备对应的控制信息字段；以及
    在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，所述至少一个终端设备包括所述第一终端设备，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
  2. 如权利要求1所述的方法，其特征在于，所述在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，包括：
    在所述第一时间段内在公共搜索空间发送所述第二物理层控制信息，所述公共搜索空间为所述至少一个终端设备公用的或者是服务小区公用的搜索空间。
  3. 如权利要求1或2所述的方法，其特征在于，所述至少一个终端设备属于第一终端设备组；
    所述第一物理层控制信息还用于指示第一组索引，所述第一组索引用于标识所述第一终端设备组。
  4. 如权利要求3所述的方法，其特征在于，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区标识计算得到。
  5. 如权利要求1-4任意一项所述的方法，其特征在于，所述第一物理层控制信息包括资源指示信息；所述第一控制信息字段指示所述第一终端设备使用所述资源指示信息所指示的资源接收或者发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
  6. 如权利要求1-5任意一项所述的方法，其特征在于，所述第一物理层控制信息包括第一字段，所述第一字段包括编码调制方案指示字段、新数据指示字段、冗余版本指示字段、传输功率控制TPC指示字段和混合自动重传请求HARQ进程号指示字段中的至少一种；所述第一物理层控制信息用于向所述第一终端设备指示第一索引，包括：
    所述第一物理层控制信息用于通过重用所述第一字段指示所述第一索引。
  7. 如权利要求1-6任意一项所述的方法，其特征在于，所述方法还包括：
    通过高层信令配置所述第一索引的最大取值；或者
    通过高层信令配置用于指示所述第一索引对应的字段包含的比特数或者有效比特数。
  8. 如权利要求1-7任意一项所述的方法，其特征在于，所述方法还包括：
    预先定义所述第一时间段；或者
    通过高层信令配置所述第一时间段；或者
    通过所述第一物理层控制信息指示所述第一时间段。
  9. 一种控制信息接收方法，其特征在于，包括：
    接收网络设备发送的第一物理层控制信息，所述第一物理层控制信息指示第一索引，以及指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引在所述第一时间段内与所述第一终端设备对应；
    在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
    根据所述第一索引确定所述第二物理层控制信息中所述第一终端设备对应的所述第一控制信息字段。
  10. 如权利要求9所述的方法，其特征在于，所述在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，包括：
    在所述第一时间段内接收所述网络设备在公共搜索空间发送的所述第二物理层控制信息，所述公共搜索空间为所述第一终端设备所在终端设备组所公用的或者是服务小区公用的搜索空间，所述终端设备组至少包括所述第一终端设备。
  11. 如权利要求9或10所述的方法，其特征在于，所述第一物理层控制信息包括资源指示信息；所述方法还包括：
    根据所述第一控制信息字段使用所述资源指示信息所指示的资源接收或发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
  12. 如权利要求9-11任意一项所述的方法，其特征在于，所述第一物理层控制信息还指示第一组索引；所述方法还包括：
    根据所述第一组索引确定自身所在第一终端设备组。
  13. 如权利要求12所述的方法，其特征在于，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
  14. 如权利要求9-13任意一项所述的方法，其特征在于，所述方法还包括：
    以M个时域单位为周期监测所述第一物理层控制信息，且以N个时域单位为周期监测所述第二物理层控制信息，其中，M和N均为大于或者等于1的正整数，且M大于N。
  15. 一种网络设备，其特征在于，包括处理器和收发器，其中，
    处理器，用于通过收发器向第一终端设备发送第一物理层控制信息，所述第一物理层控制信息用于向所述第一终端设备指示第一索引，以及用于指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引用于所述第一终端设备确定所述第二物理层控制信息中与所述第一终端设备对应的控制信息字段；以及
    所述处理器，还用于通过收发器在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，所述至少一个终端设备包括所述第一终端设备，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发。
  16. 如权利要求15所述的网络设备，其特征在于，所述处理器用于通过收发器在所述第一时间段内向至少一个终端设备发送所述第二物理层控制信息，具体为：
    通过收发器在所述第一时间段内在公共搜索空间发送所述第二物理层控制信息，所述公共搜索空间为所述至少一个终端设备公用的或者是服务小区公用的搜索空间。
  17. 如权利要求15或16所述的网络设备，其特征在于，所述至少一个终端设备属于第一终端设备组；所述第一物理层控制信息还用于指示第一组索引，所述第一组索引用于标识所述第一终端设备组。
  18. 如权利要求17所述的网络设备，其特征在于，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
  19. 如权利要求15-18任意一项所述的网络设备，其特征在于，所述第一物理层控制信息包括资源指示信息；所述第一控制信息字段指示所述第一终端设备使用所述资源指示信息所指示的资源接收或者发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
  20. 如权利要求15-19任意一项所述的网络设备，其特征在于，所述第一物理层控制信息包括第一字段，所述第一字段包括编码调制方案指示字段、新数据指示字段、冗余版本指示字段、传输功率控制TPC指示字段和混合自动重传请求HARQ进程号指示字段中的至少一种；所述第一物理层控制信息用于向所述第一终端设备指示第一索引，包括：
    所述第一物理层控制信息用于通过重用所述第一字段指示所述第一索引。
  21. 如权利要求15-20任意一项所述的网络设备，其特征在于，所述处理器还用于：
    通过高层信令配置所述第一索引的最大取值；或者
    通过高层信令配置用于指示所述第一索引对应的字段包含的比特数或者有效比特数。
  22. 如权利要求15-21任意一项所述的网络设备，其特征在于，所述处理器还用于：
    预先定义所述第一时间段；或者
    通过高层信令配置所述第一时间段；或者
    通过所述第一物理层控制信息指示所述第一时间段。
  23. 一种终端设备，其特征在于，所述终端设备为第一终端设备，包括处理器和收发器，其中，
    处理器，用于通过收发器接收网络设备发送的第一物理层控制信息，所述第一物理层控制信息指示第一索引，以及指示所述第一终端设备在第一时间段监测第二物理层控制信息，所述第一索引在所述第一时间段内与所述第一终端设备对应；
    所述处理器，还用于通过收发器在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，所述第二物理层控制信息包括至少一个控制信息字段，所述至少一个控制信息字段包括第一控制信息字段，所述第一控制信息字段指示所述第一终端设备接收或发送数据，或者所述第一控制信息字段指示所述第一终端设备接收或发送数据或不进行数据的收发；
    所述处理器，还用于根据所述第一索引确定所述第二物理层控制信息中所述第一终端设备对应的所述第一控制信息字段。
  24. 如权利要求23所述的终端设备，其特征在于，所述处理器还用于通过收发器在所述第一时间段内接收所述网络设备发送的第二物理层控制信息，具体为：
    通过收发器在所述第一时间段内接收所述网络设备在公共搜索空间发送的所述第二物 理层控制信息，所述公共搜索空间为所述第一终端设备所在终端设备组所公用的或者是服务小区公用的搜索空间，所述终端设备组至少包括所述第一终端设备。
  25. 如权利要求23或24所述的终端设备，其特征在于，所述第一物理层控制信息包括资源指示信息；所述处理器还用于：
    根据所述第一控制信息字段使用所述资源指示信息所指示的资源通过所述收发器接收或发送数据，所述资源包括频域资源，或者时域资源或者时频资源。
  26. 如权利要求23-25任意一项所述的终端设备，其特征在于，所述第一物理层控制信息还指示第一组索引；所述处理器还用于：
    根据所述第一组索引确定自身所在第一终端设备组。
  27. 如权利要求26所述的终端设备，其特征在于，所述第二物理层控制信息由第一扰码序列加扰，所述第一扰码序列至少由所述第一组索引或小区ID计算得到。
  28. 如权利要求23-27任意一项所述的终端设备，其特征在于，所述处理器还用于：
    以M个时域单位为周期监测所述第一物理层控制信息，且以N个时域单位为周期监测所述第二物理层控制信息，其中，M和N均为大于或者等于1的正整数，且M大于N。
  29. 一种控制信道发送装置，其特征在于，包括：
    执行程序指令相关的硬件，以及
    计算机可读取存储介质，用于存储所述程序，其中，所述程序在执行时，如权利要求1至8中任一项所述的方法被实现。
  30. 一种控制信道接收装置，其特征在于，包括：
    执行程序指令相关的硬件，以及
    计算机可读取存储介质，用于存储所述程序，其中，所述程序在执行时，如权利要求9至14中任一项所述的方法被实现。
  31. 一种计算机可读取存储介质，用于存储程序，所述程序在执行时，如权利要求1至14中任一项所述的方法被实现。
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