WO2018171461A1 - 信息传输方法、装置及系统 - Google Patents

信息传输方法、装置及系统 Download PDF

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Publication number
WO2018171461A1
WO2018171461A1 PCT/CN2018/078753 CN2018078753W WO2018171461A1 WO 2018171461 A1 WO2018171461 A1 WO 2018171461A1 CN 2018078753 W CN2018078753 W CN 2018078753W WO 2018171461 A1 WO2018171461 A1 WO 2018171461A1
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WIPO (PCT)
Prior art keywords
downlink control
user equipment
control information
information
quantity indication
Prior art date
Application number
PCT/CN2018/078753
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English (en)
French (fr)
Inventor
杭海存
吴晔
张茜
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18772407.5A priority Critical patent/EP3579482B1/en
Publication of WO2018171461A1 publication Critical patent/WO2018171461A1/zh
Priority to US16/579,240 priority patent/US11172499B2/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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the present application relates to the field of communications technologies, and in particular, to an information transmission method, apparatus, and system.
  • a Long Term Evolution (LTE) or Long Term Evolution-advanced (LTE-A) communication system usually includes a User Equipment (UE) and a base station capable of scheduling a UE, and the base station may
  • the scheduling information is encapsulated in Downlink Control Information (DCI), and the DCI is sent to the UE through a Physical Downlink Control Channel (PDCCH).
  • DCI Downlink Control Information
  • a base station that schedules the same UE may be multiple in one scheduling period, and each of the multiple base stations may separately schedule its own to the UE.
  • CCE Control The Channel Element
  • the UE since the UE is required to perform blind detection on all CCEs in the common search space and the UE-specific search space, the complexity of UE blind detection is high.
  • an embodiment of the present invention provides an information transmission method, apparatus, and system.
  • the technical solution is as follows:
  • an information transmission method comprising:
  • the quantity indication information is sent to the user equipment.
  • the base station sends the quantity indication information to the user equipment, so that the user equipment receives the downlink control information according to the quantity indication information, which can solve the problem of high complexity of blind detection of the user equipment, and reduce the blindness of the user equipment.
  • the complexity of the detection is the reason for the detection.
  • sending the quantity indication information to the user equipment including: sending the quantity indication information to the user equipment by using link layer signaling.
  • an information transmission method comprising:
  • the user equipment receives the quantity indication information and receives the downlink control information according to the quantity indication information, which can solve the problem of high complexity of blind detection of the user equipment, and reduce the complexity of blind detection of the user equipment. .
  • receiving the quantity indication information including: receiving the quantity indication information sent by the link layer signaling.
  • the downlink control information is from at least one base station.
  • the downlink control information includes at least one of public downlink control information and user equipment dedicated downlink control information.
  • the downlink control information includes public downlink control information and user equipment dedicated downlink control information, where
  • the quantity indication information is used to indicate the maximum number of public downlink control information and the maximum number of downlink control information of the user equipment;
  • the quantity indication information is used to indicate the sum of the maximum number of common downlink control information and the maximum number of user equipment dedicated downlink control information.
  • the link layer signaling includes: data link layer signaling or radio link layer signaling.
  • an information transmission apparatus comprising at least one module, the at least one module being used to implement the information transmission method provided by the above first aspect or any of the optional aspects of the first aspect.
  • a fourth aspect provides an information transmission apparatus, the information transmission apparatus comprising at least one module, wherein the at least one module is configured to implement the information transmission method provided by the second aspect or the optional aspect of the second aspect.
  • a base station in a fifth aspect, includes: a processor, a transmitter, a receiver, and a network interface, and the processor, the transmitter, the receiver, and the network interface are connected by using a bus;
  • the processor includes one or more processing cores, and the processor executes various functional applications and data processing by running software programs and units;
  • the base station may communicate with other storage devices or network devices;
  • the processor and the transmitter are configured to cooperate to perform the information transmission method provided by any of the above first aspect or the optional aspect of the first aspect.
  • a user equipment in a sixth aspect, includes: a receiver, a processor, a transmitter, and a network interface, and the receiver, the processor, the transmitter, and the network interface are connected by using a bus;
  • the processor includes one or more processing cores, and the processor executes various functional applications and data processing by running software programs and units;
  • the receiver and the processor are configured to cooperate to perform the information transmission method provided by any of the above second aspect or the second aspect.
  • a computer readable storage medium in a seventh aspect, storing instructions for causing a computer to perform the first aspect or the first aspect when the computer readable storage medium is run on a computer
  • the information transmission method provided by any of the alternative methods.
  • a computer readable storage medium storing instructions for causing a computer to perform the second aspect or the second aspect described above when the computer readable storage medium is run on a computer
  • the information transmission method provided by any of the alternative methods.
  • a computer program product comprising instructions for causing a computer to perform the information transmission method provided by any of the above first aspect or the first aspect, when the computer program product is run on a computer.
  • a computer program product comprising instructions for causing a computer to perform the information transmission method provided by any of the above second aspect or the second aspect, when the computer program product is run on a computer.
  • an information transmission system comprising: a base station and a user equipment,
  • the base station includes the information transmission apparatus provided in any one of the foregoing third aspect or the third aspect, where the user equipment includes any one of the foregoing fourth aspect or the fourth aspect.
  • Information transmission device provided;
  • the base station is the base station provided in the foregoing fifth aspect
  • the user equipment is the user equipment provided in the foregoing sixth aspect.
  • the base station sends the quantity indication information to the user equipment, so that the user equipment receives the downlink control information according to the quantity indication information, which can solve the problem that the complexity of the blind detection of the user equipment is high. Reduce the complexity of blind detection of user equipment.
  • FIG. 1 is a schematic diagram of a CoMP/FeCoMP communication system provided by the related art
  • FIG. 2 is a schematic structural diagram of an implementation environment according to various embodiments of the present invention.
  • FIG. 3 is a flowchart of a method for transmitting an information according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of distribution of downlink control information according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another downlink control information according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of switching of a transmission scheme according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of switching of another transmission scheme according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of switching between scenes with different numbers of base stations in the same transmission scheme according to an embodiment of the present disclosure
  • FIG. 9 is a block diagram of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 10 is a block diagram of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an information transmission system according to an embodiment of the present invention.
  • the LTE/LTE-A communication system generally includes a base station and a UE, and information transmission between the base station and the UE is performed, and communication between the base station and the UE is divided into uplink communication and downlink communication, and in downlink communication, transmission between the base station and the UE is performed.
  • the information may include downlink data information and downlink control information.
  • the base station may encapsulate the data information in the Radio Resource Control (RRC) signaling, and send the RRC signaling to the UE through the Physical Downlink Share Channel (PDSCH), and the base station may Control information (eg, scheduling information) is encapsulated in the DCI, then the DCI is carried on the PDCCH, and the DCI is transmitted to the UE through the PDCCH.
  • the control information is used to indicate the time-frequency resource occupied by the data information.
  • the UE receives the DCI through the blind detection PDCCH, and then demodulates and decodes the DCI to obtain the control information in the DCI, and determines the data information occupied by the control information.
  • the time-frequency resource further realizes the reception of the data information on the time-frequency resource occupied by the data information. It can be seen that DCI has a very high reliability requirement. Only when the DCI is correctly decoded, can the UE accurately obtain the time-frequency resources occupied by the data information.
  • a PDCCH usually occupies multiple Control Channel Elements (CCEs).
  • the PDCCH usually includes a common search space and a UE-specific search space.
  • the DCI carried in the common search space is a public DCI.
  • the information in the DCI is usually mainly system information, system information update information, paging information, etc.
  • the DCI carried in the user equipment-specific search space is the UE specific DCI, and the information in the UE specific DCI is mainly the UE-specific related scheduling information. .
  • the base station may determine the number of CCEs occupied by a certain PDCCH according to factors such as the channel quality, and the number of CCEs occupied by the common search space of the PDCCH and the dedicated search space of the user equipment.
  • the UE When the UE detects the PDCCH blindly, it may be in the public search space. Blind detection is performed on all possible CCEs in the user equipment-specific search space, and the content of the DCI is further solved after the UE blindly detects its own DCI.
  • each UE has only one UE-specific DCI in one scheduling period, and the UE blindly detects its own UE-specific DCI in the process of blind detection. Blind detection will be terminated.
  • the multiple base stations may perform scheduling in a cooperative scheduling manner, and the corresponding LTE/LTE-A communication system is multi-point cooperation. (Coordinate Multi-point, CoMP) or further enhance the multi-point cooperation (Futher enhancement CoMP, FeCoMP) communication system.
  • CoMP/FeCoMP communication system can improve the performance of the communication system, especially in uplink communication or downlink communication. Spectrum efficiency at the edge of the cell.
  • one of the plurality of base stations scheduling the same UE is the serving base station, and the remaining base stations are all cooperative base stations, and the cooperative base station can send the scheduling information of the UE to the serving base station through the backhaul link.
  • the serving base station encapsulates the received scheduling information and the scheduling information of the UE to the UE in the DCI, and maps the DCI to the PDCCH according to a certain rule, and sends the DCI to the UE through the PDCCH, and the UE can select the DCI format.
  • a blind detection is performed on the possible CCEs in the PDCCH.
  • the UE After the UE blindly detects the DCI, the UE terminates the blind detection, and obtains scheduling information according to the blindly detected DCI. Then, the UE may receive the data information according to the scheduling information.
  • FIG. 1 a schematic diagram of a CoMP/FeCoMP communication system is shown.
  • base station 001 and base station 002 are two base stations scheduling UE-003 in the same scheduling period, and base station 001 is serving.
  • the base station, the base station 002 is a cooperative base station, and the base station 002 sends the scheduling information of the UE-003 to the base station 001 through the backhaul link.
  • the base station 001 After receiving the scheduling information, the base station 001 sends the scheduling information and its own scheduling information to the UE-003.
  • the information is integrated and encapsulated in the DCI and sent to the UE-003 through the PDCCH.
  • the UE-003 receives the DCI through the blind detection PDCCH, and then determines scheduling information according to the DCI.
  • the scheduling information may include scheduling information of the base station 001 and the base station 002.
  • the UE-003 may determine the scheduling resource according to the scheduling information, and receive data (DATA) information sent by the base station 001 and the base station 002 according to the scheduling resource.
  • DATA data
  • the transmission delay of the backhaul link is usually greater than one scheduling period, in the CoMP/FeCoMP communication system, the information exchanged between the serving base station and the UE may be outdated (invalid) information.
  • multiple base stations can schedule the same UE.
  • 5G communication scheduling the same UE in the same scheduling period
  • Multiple base stations can independently send downlink control information (for example, DCI in LTE) to the UE.
  • downlink control information for example, DCI in LTE
  • the UE blindly detects one of its own If a downlink control information is terminated and the blind detection is terminated, there may be a case where the downlink control information is missed. If the UE blindly detects one downlink control information of its own and continues blind detection, the UE does not know the possible downlink control information. The number, the UE needs to blindly detect all possible CCEs, and the complexity of blind detection is high.
  • FIG. 2 it is a schematic structural diagram of an implementation environment involved in various embodiments of the present invention, where the implementation environment includes: a network side device, multiple Transmitting and Receiving Point (TRP) devices, and multiple The user equipment, the network side device establishes a communication connection with each of the plurality of TRP devices, and the plurality of TRP devices can establish a communication connection with the plurality of user devices, and each TRP device can be associated with the plurality of user devices. At least one user equipment is connected, and each user equipment can be connected to at least one TRP device of the plurality of TRP devices, and the network side device can control and manage the plurality of TRP devices and the plurality of user devices.
  • TRP Transmitting and Receiving Point
  • the network side device may be a network controller, a network manager, or the like.
  • the TRP device is, for example but not limited to, a Base Transceiver Station (BTS) in a Global System for Mobile Communication (GSM) system, and a NB (NodeB in a Wideband Code Division Multiple Access (WCDMA) system. ), an evolved Node B (eNB) in LTE, a relay station, an in-vehicle device, a wearable device, and an access network device in a future 5G communication system or a public land mobile network (PLMN) in the future. ) Access network equipment in the network.
  • BTS Base Transceiver Station
  • GSM Global System for Mobile Communication
  • WCDMA Wideband Code Division Multiple Access
  • eNB evolved Node B
  • LTE Long Term Evolution
  • relay station an in-vehicle device
  • PLMN public land mobile network
  • PLMN public land mobile network
  • the user equipment may be a UE in a general sense.
  • the user equipment may also be a mobile station, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication device. , user agent or user device, etc.
  • the user equipment can be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) telephone, a Wireless Local Loop (WLL) station, a handheld device with wireless communication capabilities, a computing device, or a connection to a wireless modem.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • the user equipment may also include other devices capable of communicating with the access network device, such as a relay.
  • the implementation environment of the present application uses a network side device as the network controller 01, a TRP device as the base station, and multiple base stations including the base station 021, the base station 022, and the base station 023, with the user equipment as the UE and multiple UEs including the UE.
  • -031, UE-032 and UE-033 are described as an example.
  • multiple base stations may schedule multiple UEs, and within one scheduling period, one base station may schedule at least one UE (eg, two UEs), and at least one base station (eg, three base stations) may When the UE is scheduled by the same UE, the base station may send the scheduling information to the UE when the UE is scheduled.
  • the base station may encapsulate the scheduling information in the downlink control information, and send the downlink control information to the UE through the PDCCH.
  • the PDCCH is detected to receive downlink control information, thereby implementing reception of scheduling information.
  • This application mainly introduces the case where at least one base station schedules the same UE in one scheduling period.
  • the implementation environment of the present application is described by taking the scheduling of the UE-031 by the base station 021, the base station 022, and the base station 023 as an example, specifically:
  • the network controller 01 can predict the maximum number of base stations scheduling the UE-031 in the preset time period, and then send the maximum number to any base station that schedules the UE-031 within the preset time period (for example, sends to the base station 021).
  • the base station 021 may generate the quantity indication information according to the maximum quantity, and then send the quantity indication information to the UE-031, where the quantity indication information is used to indicate downlink control for the same UE (for example, UE-031) within a preset time period.
  • the UE-031 may receive downlink control information according to the quantity indication information, where the downlink control information received by the UE-031 according to the quantity indication information may be from at least one base station. Downstream control information.
  • the maximum number predicted by the network controller 01 is 3, and the quantity indication information generated by the base station 021 indicates the UE-031.
  • the maximum number of downlink control information is 3, and the UE-031 can perform blind detection on the PDCCH when the downlink control information is received according to the quantity indication information, and the number of downlink control information that is blindly detected is equal to the quantity indicated by the quantity indication information ( For example, in the case of 3), the UE-031 terminates the blind detection.
  • the downlink control information blindly detected by the UE-031 is downlink control information from at least one of the base station 021, the base station 022, and the base station 023.
  • FIG. 3 is a flowchart of a method for transmitting information according to an embodiment of the present invention.
  • the information transmission method may be used in the implementation environment shown in FIG. 2.
  • the information transmission method may include:
  • Step 301 The base station generates quantity indication information, where the quantity indication information is used to indicate the maximum number of downlink control information.
  • the base station may obtain the maximum number of base stations that schedule the same user equipment in the preset time period, and then generate quantity indication information according to the maximum quantity, where the quantity indication information is used to indicate the maximum number of downlink control information. Specifically, it refers to the maximum number of downlink control information for the same user equipment in a preset time period.
  • the downlink control information such as the DCI in the LTE, may be any base station in the implementation environment shown in FIG. 2, and the user equipment may be any UE in the implementation environment shown in FIG.
  • the base station 021 in the implementation environment shown in FIG. 2 the user equipment is the UE-031 in the implementation environment shown in FIG.
  • the base station 021 can obtain the maximum number of base stations scheduling the UE-031 in the preset time period, and then The maximum number generates quantity indication information, which is used to indicate the maximum number of downlink control information for the UE-031 in the preset time period.
  • the base station 021 may be a base station that schedules the UE-031 in the preset time period, or may not be a base station that schedules the UE-031 in the preset time period, which is not limited in this embodiment of the present invention.
  • the base station 021 is a base station that schedules the UE-031 within the preset time period.
  • the preset time period is a time period between a time when the user equipment currently receives the quantity indication information and a time when the quantity indication information is received next time, and thus, the preset time period is generally changed, and the present invention The embodiment does not limit this.
  • the downlink control information may be downlink control information from at least one base station, where the quantity indication information is used to indicate from the at least two base stations when the downlink control information comes from at least two base stations. The sum of the maximum number of downlink control information.
  • the downlink control information includes at least one of common downlink control information and user equipment-specific downlink control information, where the common downlink control information is usually carried in a common search space of the PDCCH, which may be a system.
  • the user equipment-specific downlink control information is usually carried in the user equipment-specific search space of the PDCCH, which is usually related scheduling information specific to the user equipment.
  • the quantity indication information is used to indicate the maximum number of any one of the downlink control information. And specifically for indicating the maximum number of the any one of the downlink control information for the same user equipment in the preset time period.
  • the quantity indication information indicates the number of 3
  • the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the quantity indication information is used to indicate the preset time period.
  • the maximum number of public downlink control information for the UE-031 is 3; for example, when the downlink control information includes user equipment-specific downlink control information, the quantity indication information indicates the number of 3, and the user equipment is implemented as shown in FIG. When the UE-031 is in the environment, the quantity indication information is used to indicate that the maximum number of user equipment-specific downlink control information for the UE-031 in the preset time period is 3.
  • the quantity indication information in the embodiment of the present invention may include the following two possible implementation solutions:
  • the quantity indication information is used to indicate the maximum number of public downlink control information and the maximum number of downlink control information of the user equipment. Specifically, the quantity indication information is used to indicate the maximum number of common downlink control information for the same user equipment and the maximum number of user equipment-specific downlink control information in the preset time period. For example, when the quantity indication information indicates the number of 3 and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the quantity indication information is used to indicate the public downlink control information for the UE-031 in the preset time period.
  • the maximum number of users and the maximum number of downlink control information for user equipment are both 3.
  • the quantity indication information is used to indicate the sum of the maximum number of common downlink control information and the maximum number of downlink control information of the user equipment. Specifically, the quantity indication information is used to indicate the sum of the maximum number of common downlink control information for the same user equipment and the maximum number of user equipment dedicated downlink control information in the preset time period. For example, when the quantity indication information indicates the number of 3 and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the quantity indication information is used to indicate the public downlink control information for the UE-031 in the preset time period. The sum of the maximum number and the maximum number of user equipment-specific downlink control information is 3.
  • the quantity indication information may include public indication information and maximum indication information
  • the common indication information is used for the maximum number of common downlink control information
  • the dedicated indication information is used to indicate the maximum number of user equipment-specific downlink control information.
  • the quantity indication information and the maximum number of indications thereof can be as shown in Table 1 below:
  • Quantity indication greatest amount Public quantity indication 1 Dedicated quantity indication 2
  • the quantity indication information includes public quantity indication information and dedicated quantity indication information, and the maximum quantity indicated by the public quantity indication information is 1, indicating common downlink control information for the same user equipment (for example, UE-031) in the preset time period.
  • the maximum number of dedicated device indication information is 2, indicating that the maximum number of user equipment-specific downlink control information for the same user equipment (for example, UE-031) in the preset time period is 1.
  • the network controller may manage the base station and interact with each base station managed by the network to determine the user equipment scheduled by each base station, thereby counting and predicting the preset time.
  • the maximum number of base stations of each user equipment is scheduled in the segment, and the maximum number is sent to any base station, so that any one of the base stations can generate the quantity indication information according to the received maximum quantity, and send the corresponding quantity indication information to the user equipment.
  • the implementation environment shown in FIG. 1 is taken as an example.
  • the network controller 01 can interact with each of the base stations 021, the base station 022, and the base station 023 to determine the UE scheduled by each base station, and then statistically predict the preset time.
  • the maximum number of base stations per UE is scheduled in the segment, and the maximum number is sent to any base station.
  • the network controller 01 periodically predicts the maximum number of base stations scheduling UE-032 in the preset time period, and the maximum number is The number is transmitted to the base station 021, so that the base station 021 generates the quantity indication information according to the maximum number.
  • the network controller sends the maximum number to the base station, the related information of the user equipment may also be sent to the base station, so that the base station can send the quantity indication information to the corresponding user equipment.
  • the related information of the UE-032 may also be sent to the base station 021, so that the base station 021 can send the corresponding quantity indication information to the UE-032 according to the related information of the UE-032. .
  • the network controller may send the maximum number of common downlink control information and the dedicated downlink control of the user equipment to the base station when transmitting the maximum number to the base station.
  • the maximum number of information is such that the base station can generate the quantity indication information shown in Table 1. This embodiment of the present invention does not limit this.
  • Step 302 The base station sends the quantity indication information to the user equipment.
  • the base station may send the quantity indication information to the user equipment.
  • the base station may send the quantity indication information to the user equipment by using link layer signaling, where the link layer signaling may include data link layer signaling or radio link layer signaling.
  • the data link layer signaling may be L2 signaling, which is also called Media Access Control (MAC) layer signaling
  • the radio link layer signaling may be L3 signaling, which is also called RRC signaling.
  • the base station carries the quantity indication information in the link layer signaling, and sends link layer signaling to the user equipment to implement the sending of the quantity indication information.
  • the step 302 continues with the base station as the base station 021 in the implementation environment shown in FIG. 2, and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, and the base station 021 can pass the link layer signaling.
  • the number indication information is sent to the UE-031.
  • the duration of a scheduling period is usually a Transmission Time Interval (TTI), and the duration is short, which may cause the information of the interaction between the base station and the user equipment to be invalid.
  • TTI Transmission Time Interval
  • the base station passes the data link.
  • the layer signaling or the radio link layer signaling sends the quantity indication information to the user equipment, and the update period of the data link layer signaling and the radio link layer signaling is longer, and is usually greater than one scheduling period. Therefore, the base station passes the data.
  • the link layer signaling or the radio link layer signaling sends the quantity indication information to the user equipment to prevent the information of the interaction between the base station and the user equipment from being invalid, and the validity of the interaction information is ensured.
  • Step 303 The user equipment receives the quantity indication information sent by the base station.
  • the user equipment may receive the quantity indication information sent by the base station, where the quantity indication information is used to indicate the maximum number of downlink control information, and may specifically indicate the user equipment in the preset time period.
  • the user equipment may receive the quantity indication information sent by the base station by using the link layer signaling, where the link layer signaling may include data link layer signaling or radio link layer signaling.
  • the data link layer signaling may be L2 signaling, which is also called MAC layer signaling
  • the radio link layer signaling may be L3 signaling, which is also called RRC signaling.
  • the user equipment receives the link layer signaling sent by the base station, and parses the link layer signaling to obtain quantity indication information.
  • the UE-031 receiving base station 021 can send the quantity indication information by using link layer signaling.
  • Step 304 The user equipment receives downlink control information according to the quantity indication information.
  • the user equipment may receive downlink control information according to the quantity indication information.
  • the downlink control information is generally carried on the PDCCH. Therefore, the user equipment receiving the downlink control information according to the quantity indication information may include: the user equipment performs blind detection on the PDCCH according to the quantity indication information.
  • the downlink control information in the step 304 may include, but is not limited to, downlink control information sent by the base station in the foregoing step 302, and the downlink control information may be from at least one base station, for example, the downlink control in the step 304.
  • the information may include downlink control information sent by the base station 021, the base station 022, and the base station 023 in the implementation environment shown in FIG. 2. This step 304 is described by taking the user equipment as the UE-031 in the implementation environment shown in FIG. 2 as an example.
  • the downlink control information includes at least one of common downlink control information and user equipment-specific downlink control information, where the common downlink control information is usually carried in a common search space of the PDCCH, which may be a system.
  • the user equipment-specific downlink control information is usually carried in the user equipment-specific search space of the PDCCH, which is usually related scheduling information specific to the user equipment.
  • the quantity indication information is used to indicate the maximum number of any one of the downlink control information.
  • the user equipment may indicate the maximum number of the downlink control information for the user equipment (the execution body of the step 304) in the preset time period, and the user equipment may perform the downlink to the PDCCH according to the quantity indication information.
  • the search space where the control information is located is blindly detected to receive the corresponding downlink control information.
  • the quantity indication information indicates the number of 3
  • the user equipment is the UE-031 in the implementation environment shown in FIG.
  • the quantity indication information is used to indicate the preset time.
  • the maximum number of common downlink control information for the UE-031 in the segment is 3, and the UE-031 can blindly detect the common search space of the PDCCH according to the quantity indication information until the three common downlink control information are blindly detected, and the UE-031 terminates.
  • Blind detection, or the number of public downlink control information blindly detected by UE-031 in the process of blind detection is always less than 3. After UE-031 blindly detects all CCEs in the common search space of PDCCH, UE-031 terminates blindness.
  • the quantity indication information indicates the number of 3, and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the quantity indication information is used.
  • the maximum number of user equipment-specific downlink control information for the UE-031 is 3, and the UE-031 can specify the user equipment of the PDCCH according to the quantity indication information.
  • the search space is blindly detected until the downlink control information of three user equipments is blindly detected, and the UE-031 terminates the blind detection, or the number of downlink control information of the user equipment that is blindly detected by the UE-031 during the blind detection process.
  • UE-031 terminates blind detection after UE-031 blindly detects all CCEs of the user equipment-specific search space of the PDCCH.
  • the two possible implementations of the quantity indication information in the embodiment of the present invention may be as described in step 301.
  • the two possible implementation manners, the user equipment receiving the downlink control information according to the quantity indication information may include the following two possible implementation solutions:
  • the quantity indication information is used to indicate the maximum number of public downlink control information and the maximum number of downlink control information of the user equipment. Specifically, the quantity indication information is used to indicate the maximum number of common downlink control information and the maximum number of user equipment-specific downlink control information for the same user equipment in the preset time period, and the user equipment may first indicate the information to the PDCCH according to the quantity indication information.
  • the public search space is blindly detected to receive the common downlink control information, and then the user equipment-specific search space of the PDCCH is blindly detected according to the quantity indication information, so that the user equipment dedicated downlink control information is received.
  • the following four cases may be included:
  • the user equipment when the user equipment blindly detects the common search space of the PDCCH, when the user equipment blindly detects the quantity of the common downlink control information indicated by the quantity indication information, the user equipment terminates the blind detection of the common search space of the PDCCH.
  • the user equipment-specific search space of the PDCCH is blindly detected.
  • the user equipment When the user equipment blindly detects the number of user equipment-specific downlink control information indicated by the quantity indication information, the user equipment terminates the blind detection of the user equipment-specific search space of the PDCCH. For example, when the number indicated by the quantity indication information is 3, and the user equipment is the UE-031 in the implementation environment shown in FIG.
  • the UE-031 may first perform blind detection on the common search space of the PDCCH, and when the UE-031 is blindly detected.
  • UE-031 terminates the blind detection of the common search space of the PDCCH, and performs blind detection on the user equipment-specific search space of the PDCCH.
  • UE-031 blindly detects three user equipment dedicated downlink control
  • the UE-031 terminates the blind detection of the user equipment dedicated search space of the PDCCH.
  • the user equipment in the process of blindly detecting the common search space of the PDCCH by the user equipment, if the number of public downlink control information blindly detected by the user equipment is always smaller than the quantity indicated by the quantity indication information, the user equipment blindly detects the public search of the PDCCH. After all the CCEs in the space, the user equipment terminates the blind detection of the common search space of the PDCCH, and performs blind detection on the user equipment-specific search space of the PDCCH. If the number of downlink control information of the user equipment that is blindly detected by the user equipment is always less than the quantity.
  • the user equipment After indicating the number of indications, after the user equipment blindly detects all CCEs of the user equipment-specific search space of the PDCCH, the user equipment terminates blind detection of the user equipment-specific search space of the PDCCH. For example, when the number indicated by the quantity indication information is 3, and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the UE-031 may first perform blind detection on the common search space of the PDCCH, if the UE-031 is blindly detected. The number of the common downlink control information is always less than 3.
  • the UE-031 After the UE-031 blindly detects all CCEs in the common search space of the PDCCH, the UE-031 terminates the blind detection of the common search space of the PDCCH, and is dedicated to the user equipment of the PDCCH.
  • the search space performs blind detection. If the number of user equipment-specific downlink control information blindly detected by the UE-031 is always less than 3, the UE-031 terminates the UE-031 after all the CCEs of the user equipment-specific search space of the PDCCH are blindly detected. The user equipment-specific search space of the PDCCH is blindly detected.
  • the user equipment when the user equipment blindly detects the common search space of the PDCCH, when the user equipment blindly detects the quantity of the common downlink control information indicated by the quantity indication information, the user equipment terminates the blind detection of the common search space of the PDCCH.
  • the user equipment-specific search space of the PDCCH is blindly detected. If the number of user equipment-specific downlink control information that is detected by the user equipment is always smaller than the quantity indicated by the quantity indication information, the user equipment blindly detects the user equipment-specific search space of the PDCCH. After all CCEs, the user equipment terminates blind detection of the user equipment-specific search space of the PDCCH.
  • the UE-031 may first perform blind detection on the common search space of the PDCCH, and when the UE-031 is blindly detected.
  • the UE-031 terminates the blind detection of the common search space of the PDCCH, and performs blind detection on the user equipment-specific search space of the PDCCH.
  • the UE-031 terminates the blind detection of the user equipment-specific search space of the PDCCH.
  • the user equipment in the process of blindly detecting the common search space of the PDCCH by the user equipment, if the number of public downlink control information blindly detected by the user equipment is always smaller than the quantity indicated by the quantity indication information, the user equipment blindly detects the public search of the PDCCH. After all the CCEs in the space, the user equipment terminates the blind search of the common search space of the PDCCH, and performs blind detection on the user equipment-specific search space of the PDCCH. When the user equipment blindly detects the number of user equipment dedicated downlink control indicated by the quantity indication information When the information is received, the user equipment terminates the blind detection of the user equipment-specific search space of the PDCCH.
  • the UE-031 may first perform blind detection on the common search space of the PDCCH, if the UE-031 is blindly detected.
  • the number of the common downlink control information is always less than 3.
  • the UE-031 After the UE-031 blindly detects all CCEs in the common search space of the PDCCH, the UE-031 terminates the blind detection of the common search space of the PDCCH, and is dedicated to the user equipment of the PDCCH.
  • the search space performs blind detection.
  • UE-031 blindly detects three user equipment-specific downlink control information
  • UE-031 terminates blind detection of the user equipment-specific search space of the PDCCH.
  • the quantity indication information is used to indicate the sum of the maximum number of common downlink control information and the maximum number of downlink control information of the user equipment. Specifically, the quantity indication information is used to indicate the sum of the maximum number of common downlink control information for the same user equipment and the maximum number of user equipment dedicated downlink control information in the preset time period.
  • the user equipment may perform blind detection on the common search space of the PDCCH according to the quantity indication information, and receive the common downlink control information, and then perform blind detection on the user equipment-specific search space of the PDCCH according to the quantity indication information, so as to perform dedicated downlink for the user equipment. Control information is received.
  • the following three cases may be included:
  • the user equipment in the process of blind detection of the PDCCH common search space by the user equipment, if the number of public downlink control information blindly detected by the user equipment is always smaller than the quantity indicated by the quantity indication information, the user equipment blindly detects the public search of the PDCCH. After all the CCEs in the space, the user equipment terminates the blind detection of the common search space of the PDCCH, and performs blind detection on the user equipment-specific search space of the PDCCH. When the user equipment blindly detects the number of downlink control information of the user equipment and the public downlink When the sum of the number of control information is equal to the number indicated by the quantity indication information, the user equipment terminates the blind detection of the user equipment-specific search space of the PDCCH.
  • the UE-031 may first perform blind detection on the common search space of the PDCCH, if the UE-031 is blindly detected.
  • the number of common downlink control information is always less than 3 (for example, 0, 1 or 2 common downlink control information is blindly detected), after the UE-031 blindly detects all CCEs in the common search space of the PDCCH, the UE-031 terminates the pair.
  • the common search space of the PDCCH is blindly detected, and the user equipment-specific search space of the PDCCH is blindly detected.
  • the UE-031 When the UE-031 blindly detects the number of downlink control information of the user equipment (for example, blind detection of 3, 2, or 1) When the sum of the number of the user equipment-specific downlink control information and the number of the common downlink control information is equal to the number indicated by the quantity indication information, the UE-031 terminates the blind detection of the user equipment-specific search space of the PDCCH.
  • the number of downlink control information of the user equipment for example, blind detection of 3, 2, or 1
  • the UE-031 terminates the blind detection of the user equipment-specific search space of the PDCCH.
  • the user equipment in the process of blind detection of the common search space of the PDCCH by the user equipment, if the number of public downlink control information blindly detected by the user equipment is always smaller than the quantity indicated by the quantity indication information, the user equipment blindly detects the public search of the PDCCH. After all the CCEs in the space, the user equipment terminates the blind detection of the common search space of the PDCCH, and performs blind detection on the user equipment-specific search space of the PDCCH. If the user equipment-specific search space of the PDCCH is blindly detected, the user The sum of the number of user equipment-specific downlink control information and the number of common downlink control information that are detected by the device is always smaller than the number indicated by the quantity indication information.
  • the user equipment-specific search space of the PDCCH is blindly detected. For example, when the number indicated by the quantity indication information is 3, and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the UE-031 may first perform blind detection on the common search space of the PDCCH, if the UE-031 is blindly detected.
  • the number of common downlink control information is always less than 3 (for example, 0, 1 or 2 common downlink control information is blindly detected), after UE-031 blindly detects all CCEs in the common search space of the PDCCH, UE-031 terminates.
  • the public search space of the PDCCH is blindly detected, and the user equipment-specific search space of the PDCCH is blindly detected. If the user equipment-specific search space of the PDCCH is blindly detected, the UE-031 is blindly detected by the user equipment. The sum of the number of the downlink control information and the number of the common downlink control information is always less than 3. After the UE-031 blindly detects all the CCEs of the user equipment-specific search space of the PDCCH, the UE detects the user equipment-specific search space of the PDCCH and performs blind detection.
  • the user equipment when the user equipment blindly detects the common search space of the PDCCH, when the user equipment blindly detects the quantity of the common downlink control information indicated by the quantity indication information, the user equipment terminates the blind detection of the common search space of the PDCCH.
  • the user equipment-specific search space of the PDCCH is no longer blindly detected. For example, when the number indicated by the quantity indication information is 3, and the user equipment is the UE-031 in the implementation environment shown in FIG. 2, the UE-031 may first perform blind detection on the common search space of the PDCCH, and when the UE-031 is blindly detected. When the three common downlink control information is received, the UE-031 terminates the blind detection of the common search space of the PDCCH, and does not perform blind detection on the user equipment-specific search space of the PDCCH.
  • the PDCCH may include multiple control channel areas, where the multiple control channels may be located on different sub-bands, and the user equipment may simultaneously monitor the multiple control channel areas, and the user equipment
  • the multiple control channel regions may be blindly detected by means of serial blind detection or parallel blind detection.
  • the user equipment may first determine its own computing capability. When its computing power is strong, the user equipment may perform blind detection on the multiple control channel regions by using parallel blind detection, when the computing power of the user is weak. The user equipment can perform blind detection on the multiple control channel regions by means of serial blind detection.
  • each control channel region may include multiple CCEs. When multiple control channel regions are blindly detected by parallel blind detection, the user equipment adopts serial blind detection in each control channel region.
  • the method for blind detection of the CCE in each control channel region is not limited in this embodiment of the present invention.
  • the PDCCH includes multiple control channel regions, and the control channel region may be generally divided according to frequency, so that the multiple control channels may be located on different sub-bands, and multiple for the same user equipment.
  • the downlink control information may be located on the same control channel area or on different control channel areas, that is, multiple downlink control information for the same user equipment may be located on the same sub-band or may be located in different sub-bands. Bring it.
  • FIG. 4 shows a schematic diagram of distribution of downlink control information according to an embodiment of the present invention.
  • a PDCCH (not shown in FIG. 4) includes a control channel region 041, and the control channel region.
  • a PDCCH (not shown in FIG. 5) includes a control channel region 042 and a control channel region.
  • control channel area 044 and control channel area 045 are located on different sub-bands for the same user equipment (eg UE-031)
  • the two downlink control information are respectively located on the control channel region 042 and the control channel region 043.
  • the UE-031 simultaneously monitors the control channel region 042, the control channel region 043, the control channel region 044, and the control channel region 045, the UE- 031:
  • the control channel region 042, the control channel region 043, the control channel region 044, and the control channel region 045 may be blindly detected in a serial blind detection manner, or may be parallel blind detection.
  • the UE-031 performs blind detection on the control channel region 042, the control channel region 043, the control channel region 044, and the control channel region 045 in a serial blind detection manner, when the UE-031 blindly detects two downlink control information.
  • UE-031 terminates blind detection and does not perform blind detection on other control channel areas.
  • FIG. 5 when UE-031 blindly detects downlink control information in control channel area 043, UE-031 terminates blind detection, The control channel area 044 and the control channel area 045 are blindly detected.
  • the UE-031 performs parallel blind detection on the control channel area 042, the control channel area 043, the control channel area 044, and the control channel area 045. It is detected that when UE-031 blindly detects two downlink control information, UE-031 terminates blind detection and does not perform blind detection on all control channel regions.
  • FIG. 4 and FIG. 5 are examples in which the downlink control information is DCI in LTE, and those skilled in the art should understand that in the 5G communication system, the downlink control information may also be other downlink control.
  • the information, the FIG. 4 and FIG. 5, are not to be construed as limiting the embodiments of the present invention.
  • the quantity indication information may have a default value.
  • the user equipment receives the maximum number of downlink control information indicated by the received quantity indication information. Downlink control information; when the user equipment does not receive the quantity indication information, the user equipment may receive the downlink control information according to the default value of the quantity indication information.
  • the default value of the quantity indication information may be 1, that is, when the user equipment does not receive the quantity indication information, the maximum number of default downlink control information of the user equipment is 1, and the user When the device blindly detects one downlink control information, the blind detection is terminated.
  • the user equipment first performs blind detection on the common search space of the PDCCH, and then performs blind detection on the PDCCH dedicated device search space for blind detection as an example.
  • the user equipment may also perform blind detection on the common search space of the PDCCH and the user equipment-specific search space according to other sequences or blind detection methods.
  • the detection method and the detection sequence of the blind detection of the user equipment are not limited in the embodiment of the present invention.
  • the user equipment can perform blind detection on the PDCCH according to the quantity indication information sent by the base station to receive the downlink control information, and the user equipment blindly detects the quantity of downlink control information indicated by the quantity indication information. At the time, the user equipment terminates blind detection.
  • the embodiment of the present invention can avoid the situation that the downlink control information is missed.
  • the problem that the blind detection complexity caused by the blind detection of all CCEs of the PDCCH by the user equipment can be avoided.
  • the coordinated base station does not need to send the scheduling information to the serving base station, and the information that the base station interacts with the user equipment is outdated due to the long transmission delay of the backhaul link can be avoided.
  • the base station generates the quantity indication information, and sends the quantity indication information to the user equipment, where the quantity indication information is used to indicate the maximum number of downlink control information, and the user equipment receives the quantity indication information according to the quantity indication information.
  • the downlink control information can solve the problem of high complexity of blind detection of user equipment and reduce the complexity of blind detection of user equipment.
  • the base station sends the quantity indication information to the user equipment, so that the user equipment optimizes the blind detection process according to the quantity indication information, reduces the number of blind detections, and reduces the complexity of the user equipment.
  • the information transmission method provided by the embodiment of the present invention can support the switching between different transmission schemes, and can also support the switching between scenarios with different numbers of base stations in the same transmission scheme. For details, refer to the following embodiments shown in FIG. 6 to FIG. .
  • FIG. 6 is a schematic diagram of switching of a transmission scheme according to an embodiment of the present invention.
  • the base station 021 performs scheduling on the UE-031, and the base station 022 does not perform scheduling on the UE-031.
  • the number of downlink control information for the UE-031 is 1, and the transmission scheme corresponding to the T1 moment may be a single base station (or single TRP) transmission scheme; at the time T2, the base station 021 and the base station 022 simultaneously schedule the UE-031.
  • the number of downlink control information for the UE-031 is 2, and the transmission scheme corresponding to the T2 moment may be a multi-base station (or multi-TRP) transmission scheme, and the number of base stations of the UE-031 is scheduled to be changed according to the T1 time, and the downlink control information is used. The number has also changed.
  • the network controller may interact with the base station 021 and the base station 022 to count and predict the scheduled UE in the preset time period (the preset time period includes the T1 time and the T2 time).
  • the maximum number of base stations of 031 is then sent to the base station 021 (or base station 022).
  • the base station 021 After receiving the maximum number, the base station 021 generates the quantity indication information according to the maximum quantity and passes the link layer signaling (for example, L2 signaling).
  • the quantity indication information is sent to the UE-031, and the UE-031 performs the blind detection on the PDCCH according to the quantity indication information, where the quantity indication information is used to indicate the downlink for the UE-031 in the preset time period.
  • the maximum number of control information, the downlink control information may be at least one of the public downlink control information and the user equipment dedicated downlink control information. In this embodiment, the downlink control information is used as the downlink control information of the user equipment as an example for description.
  • the maximum number of downlink control information may be represented by MAX_DCI_NUM. In the embodiment shown in FIG.
  • the transmission scheme corresponding to the T1 time is a single base station transmission scheme
  • the transmission scheme corresponding to the T2 time is a multi-base station transmission scheme. Since the transmission scheme changes, the embodiment of the present invention provides The information transmission method supports switching between a single base station transmission scheme and a multi-base transmission scheme.
  • FIG. 7 is a schematic diagram of switching of another transmission scheme according to an embodiment of the present invention.
  • base station 021, base station 022, and base station 023 adopt non-coherent joint transmission (Non-coherent Joint).
  • the transmission, NC-JT scheme schedules the UE-031, and the number of downlink control information for the UE-031 may be 3; at the time T2, only the base station 022 adopts Coordinated Scheduling/Coordinated Beamforming (CS).
  • CS Coordinated Scheduling/Coordinated Beamforming
  • the UE/031 is scheduled by the scheme or the dynamic point selection (DPS) scheme, the base station 021 does not schedule the UE-031, and the number of downlink control information for the UE-031 may be 1. From this, it can be seen that the number of downlink control information for the UE-031 also changes from the time T1 to the time T2, and the number of downlink control information changes from 3 at time T1 to 1 at time T2.
  • DPS dynamic
  • the network controller may interact with the base station 021, the base station 022, and the base station 023, and count and predict a preset time period (the preset time period includes the T1 time and the T2 time). Scheduling the maximum number of base stations of the UE-031, and then transmitting the maximum number to the base station 022 (or the base station 021, the base station 023). After receiving the maximum number, the base station 022 generates the quantity indication information according to the maximum quantity and passes the link layer layer.
  • the quantity indication information is sent to the UE-031, such as the L2 signaling or the L3 signaling, so that the UE-031 performs blind detection on the PDCCH according to the quantity indication information, where the quantity indication information is used to indicate the preset time period.
  • the downlink control information may be at least one of the public downlink control information and the user equipment-specific downlink control information.
  • the downlink control information is the user equipment dedicated downlink control information.
  • the maximum number of downlink control information can be represented by MAX_DCI_NUM. In the embodiment shown in FIG.
  • the transmission scheme corresponding to the T1 time is the NC-JT scheme
  • the transmission scheme corresponding to the T2 moment is the CS/CB scheme or the DPS scheme
  • the NC-JT scheme, the CS/CB scheme, and The DPS schemes are all cooperative transmission schemes. Therefore, the information transmission method provided by the embodiments of the present invention supports handover between different coordinated transmission schemes.
  • FIG. 8 is a schematic diagram of switching between scenarios in which the number of base stations is different in the same transmission scheme provided by the embodiment of the present invention.
  • the base station 021 and the base station 022 adopt the NC-JT scheme to the UE.
  • -031 performs scheduling, and the number of downlink control information for UE-031 may be 2; at time T2, base station 021, base station 022, and base station 023 schedule UE-031 by using NC-JT scheme, and downlink control for UE-031
  • the amount of information can be 3. From this, it can be seen that the number of downlink control information for UE-031 also changes from time T1 to time T2, and the number of downlink control information changes from 2 at time T1 to 3 at time T2.
  • the network controller may interact with the base station 021, the base station 022, and the base station 023, and count and predict a preset time period (the preset time period includes the T1 time and the T2 time). Scheduling the maximum number of base stations of the UE-031, and then transmitting the maximum number to the base station 021 (or the base station 022, the base station 023). After receiving the maximum number, the base station 021 generates the quantity indication information according to the maximum quantity and passes the link layer layer.
  • the quantity indication information is sent to the UE-031, such as the L2 signaling or the L3 signaling, so that the UE-031 performs blind detection on the PDCCH according to the quantity indication information, where the quantity indication information is used to indicate the preset time period.
  • the downlink control information may be at least one of the public downlink control information and the user equipment-specific downlink control information.
  • the downlink control information is the user equipment dedicated downlink control information.
  • the maximum number of downlink control information can be represented by MAX_DCI_NUM. In the embodiment shown in FIG.
  • the transmission scheme corresponding to the T1 time and the transmission scheme corresponding to the T2 time are both the NC-JT scheme
  • the scenario at the T1 time is a scenario in which the two base stations simultaneously schedule the UE-031.
  • the scenario at time T2 is a scenario in which three base stations simultaneously schedule UE-031. Therefore, the information transmission method provided by the embodiment of the present invention can support switching between scenes with different numbers of base stations in the same coordinated transmission scheme.
  • the UE-031 needs to blindly detect all possible PDCCHs in the PDCCH at time T1 and time T2.
  • the complexity of the blind detection is high.
  • the complexity of the blind detection can be reduced.
  • FIG. 9 is a block diagram of an information transmission apparatus 900 according to an embodiment of the present invention.
  • the information transmission device 900 can be implemented as part or all of the base station by software, hardware or a combination of the two, and the base station can be any base station in the implementation environment shown in FIG. 2.
  • the information transmission device 900 may include, but is not limited to:
  • the generating module 910 is configured to generate quantity indication information, where the quantity indication information is used to indicate a maximum quantity of downlink control information;
  • the sending module 920 is configured to send the quantity indication information to the user equipment.
  • the sending module 920 is configured to send the quantity indication information to the user equipment by using link layer signaling.
  • the base station generates the quantity indication information and sends the quantity indication information to the user equipment, where the quantity indication information is used to indicate the maximum number of downlink control information, so that the user equipment indicates according to the quantity.
  • Receiving downlink control information can solve the problem of high complexity of blind detection of user equipment and reduce the complexity of blind detection of user equipment.
  • FIG. 10 is a block diagram of an information transmission apparatus 1000 according to an embodiment of the present invention.
  • the information transmission device 1000 can be implemented as part or all of the user equipment by software, hardware or a combination of the two, and the user equipment can be any user equipment (for example, the user equipment 031) in the implementation environment shown in FIG.
  • the information transmission apparatus 1000 may include:
  • the first receiving module 1010 is configured to receive quantity indication information, where the quantity indication information is used to indicate a maximum quantity of downlink control information;
  • the second receiving module 1020 is configured to receive downlink control information according to the quantity indication information.
  • the first receiving module 1010 is configured to receive the quantity indication information sent by the link layer signaling.
  • the user equipment receives the quantity indication information and receives the downlink control information according to the quantity indication information, where the quantity indication information is used to indicate the maximum number of downlink control information, and the user equipment can be resolved.
  • the problem of high complexity of blind detection reduces the complexity of blind detection of user equipment.
  • the information transmission apparatus provided by the foregoing embodiment only exemplifies the division of the foregoing functional modules when transmitting information.
  • the foregoing function allocation may be completed by different functional modules as needed.
  • the internal structure of the device is divided into different functional modules to perform all or part of the functions described above.
  • the information transmission device and the information transmission method embodiment provided by the foregoing embodiments are in the same concept, and the specific implementation process is described in detail in the method embodiment, and details are not described herein again.
  • the base station 1100 can be any base station in the implementation environment shown in FIG. 2, and is used to perform part of the method in the embodiment shown in FIG. 3.
  • the base station 1100 includes: a processor 1110 and a transmitter 1120, and the processor 1110. And the transmitter 1120 is connected through the bus 1130,
  • Processor 1110 includes one or more processing cores.
  • the processor 1110 executes various functional applications and data processing by running software programs and units.
  • the base station 1100 further includes: a memory 1140, a network interface 1150, and a receiver 1160.
  • the memory 1140, the network interface 1150, and the receiver 1160 are respectively connected to the processor 1110 and the transmitter 1120 through the bus 1130. .
  • the network interface 1150 can be used by the network interface 1150 for the base station 1100 to communicate with other storage devices or network devices.
  • the network interface 1150 is optional.
  • the base station 1100 can communicate with other storage devices or network devices through the transmitter 1120 and the receiver 1160. Therefore, the network interface may be absent in the base station 1100. This is not limited.
  • the processor 1110 is configured to generate quantity indication information, where the quantity indication information is used to indicate a maximum quantity of downlink control information;
  • the transmitter 1120 is configured to send quantity indication information to the user equipment.
  • the transmitter 1120 is configured to send the quantity indication information to the user equipment by using link layer signaling.
  • the base station provided by the embodiment of the present invention generates the quantity indication information and sends the quantity indication information to the user equipment, where the quantity indication information is used to indicate the maximum number of downlink control information, so that the user equipment receives the downlink according to the quantity indication information.
  • the control information can solve the problem of high complexity of blind detection of user equipment and reduce the complexity of blind detection of user equipment.
  • FIG. 12 is a schematic structural diagram of a user equipment 1200 according to an embodiment of the present invention.
  • the user equipment 1200 can be any user equipment (for example, user equipment 031) in the implementation environment shown in FIG. 2, and is used to perform part of the method in the embodiment shown in FIG. 3.
  • the user equipment 1200 includes: a receiver. 1210 and processor 1220, receiver 1210 and processor 1220 are connected by bus 1230.
  • Processor 1220 includes one or more processing cores.
  • the processor 1220 executes various functional applications and data processing by running software programs and units.
  • the user equipment 1200 further includes: a memory 1240, a network interface 1250, and a transmitter 1260.
  • the memory 1240, the network interface 1250, and the transmitter 1260 pass through the bus 1230 and the receiver 1210 and the processor 1220, respectively. connection.
  • the network interface 1250 may be multiple network interfaces 1250 for the user equipment 1200 to communicate with other storage devices or network devices.
  • the network interface 1250 is optional.
  • the user equipment 1200 can communicate with other storage devices or network devices through the receiver 1210 and the transmitter 1260. Therefore, the user equipment 1200 can have no network interface. This example does not limit this.
  • the receiver 1210 is configured to receive quantity indication information, where the quantity indication information is used to indicate a maximum quantity of downlink control information;
  • the processor 1220 is configured to receive downlink control information according to the quantity indication information.
  • the receiver 1210 is configured to receive the quantity indication information sent by the link layer signaling.
  • the user equipment provided by the embodiment of the present invention receives the quantity indication information and receives the downlink control information according to the quantity indication information, where the quantity indication information is used to indicate the maximum number of downlink control information, and the blind detection of the user equipment can be solved.
  • the problem of high complexity reduces the complexity of blind detection of user equipment.
  • the downlink control information is from at least one base station.
  • the downlink control information includes at least one of public downlink control information and user equipment dedicated downlink control information.
  • the downlink control information includes public downlink control information and user equipment dedicated downlink control information.
  • the quantity indication information is used to indicate the maximum number of the public downlink control information and the maximum number of the user equipment dedicated downlink control information; or the quantity indication information is used to indicate the maximum number of the public downlink control information and the maximum number of the user equipment dedicated downlink control information. with.
  • the link layer signaling includes: data link layer signaling or radio link layer signaling.
  • FIG. 13 is a schematic structural diagram of an information transmission system 1300 according to an embodiment of the present invention.
  • the information transmission system 1300 includes a base station 1310 and a user equipment 1320 .
  • the base station 1310 includes the information transmission device 900 shown in FIG. 9; the user equipment 1320 includes the information transmission device 1000 shown in FIG. 10; in another possible implementation manner, the base station 1310 is a diagram.
  • the base station 1100 shown in FIG. 11 and the user equipment 1320 are the user equipment 1200 shown in FIG.
  • the base station in the information transmission system provided by the embodiment of the present invention, the base station generates the quantity indication information and sends the quantity indication information to the user equipment, where the quantity indication information is used to indicate the maximum number of downlink control information, and the user equipment receives the quantity indication information according to the quantity indication information.
  • the downlink control information can solve the problem of high complexity of blind detection of user equipment and reduce the complexity of blind detection of user equipment.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product comprising one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions of the embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be passed from a website site, computer, server or data center Wired (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium, or a semiconductor medium (such as a solid state hard disk) or the like.
  • LTE/LTE-A means LTE or LTE-A
  • CoMP/FeCoMP means CoMP or FeCoMP
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

Abstract

本申请公开了一种信息传输方法、装置及系统，属于通信技术领域。该方法包括：基站生成数量指示信息，数量指示信息用于指示下行控制信息的最大数量，基站向用户设备发送数量指示信息，用户设备接收数量指示信息，用户设备根据数量指示信息接收下行控制信息。本申请通过向用户设备发送数量指示信息，使用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。

Description

信息传输方法、装置及系统
本申请要求于2017年03月23日提交中国国家知识产权局、申请号为201710178989.9、申请名称为“信息传输方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，特别涉及一种信息传输方法、装置及系统。
背景技术
长期演进(Long Term Evolution，LTE)或增强型长期演进(Long term evolution-advanced，LTE-A)通信系统通常包括用户设备(User Equipment，UE)和能够调度UE的基站，基站可以将对UE的调度信息封装在下行控制信息(Downlink Control Information，DCI)中，并通过物理下行控制信道(Physical Downlink Control Channel，PDCCH)向UE发送DCI。
目前，在第五代(Fifth Generation，5G)通信系统中，在一个调度周期内，调度同一个UE的基站可以为多个，多个基站中的每个基站可以分别将自身对UE的调度信息封装在下行控制信息中，并通过PDCCH独立向UE发送下行控制信息，其中，PDCCH包括公共搜索空间和UE专用搜索空间，UE可以对公共搜索空间和UE专用搜索空间中的所有控制信道元素(Control Channel Element，CCE)进行盲检测，以实现对该多个基站发送的下行控制信息的接收。
但是，由于需要UE对公共搜索空间和UE专用搜索空间中的所有CCE进行盲检测，因此UE盲检测的复杂度较高。
发明内容
为了解决UE盲检测的复杂度较高的问题，本发明实施例提供了一种信息传输方法、装置及系统。所述技术方案如下：
第一方面，提供了一种信息传输方法，该方法包括：
生成数量指示信息，数量指示信息用于指示下行控制信息的最大数量；
向用户设备发送数量指示信息。
本发明实施例提供的信息传输方法，基站通过向用户设备发送数量指示信息，使用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
可选地，向用户设备发送数量指示信息，包括：通过链路层信令向用户设备发送数量指示信息。
第二方面，提供了一种信息传输方法，该方法包括：
接收数量指示信息，数量指示信息用于指示下行控制信息的最大数量；
根据数量指示信息接收下行控制信息。
本发明实施例提供的信息传输方法，用户设备通过接收数量指示信息，并根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备 盲检测的复杂度。
可选地，接收数量指示信息，包括：接收通过链路层信令发送的数量指示信息。
可选地，在上述第一方面和第二方面中，下行控制信息来自至少一个基站。
可选地，在上述第一方面和第二方面中，下行控制信息包括：公共下行控制信息和用户设备专用下行控制信息中的至少一种。
可选地，在上述第一方面和第二方面中，下行控制信息包括公共下行控制信息和用户设备专用下行控制信息，
数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量；或者，
数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。
可选地，在上述第一方面和第二方面中，链路层信令包括：数据链路层信令或无线链路层信令。
第三方面，提供了一种信息传输装置，该信息传输装置包括至少一个模块，该至少一个模块用于实现上述第一方面或第一方面的任一可选方式所提供的信息传输方法。
第四方面，提供了一种信息传输装置，该信息传输装置包括至少一个模块，该至少一个模块用于实现上述第二方面或第二方面的任一可选方式所提供的信息传输方法。
第五方面，提供了一种基站，该基站包括：处理器、发射机、接收机和网络接口，处理器、发射机、接收机和网络接口之间通过总线连接；
处理器包括一个或者一个以上处理核心，处理器通过运行软件程序以及单元，从而执行各种功能应用以及数据处理；
网络接口可以为多个，该网络接口用于该基站与其它存储设备或者网络设备进行通信；
处理器和发射机被配置为协作完成上述第一方面或第一方面的任一可选方式所提供的信息传输方法。
第六方面，提供了一种用户设备，该用户设备包括：接收机、处理器、发射机和网络接口，接收机、处理器、发射机和网络接口之间通过总线连接；
处理器包括一个或者一个以上处理核心，处理器通过运行软件程序以及单元，从而执行各种功能应用以及数据处理；
网络接口可以为多个，该网络接口用于该用户设备与其它存储设备或者网络设备进行通信；
接收机和处理器被配置为协作完成上述第二方面或第二方面的任一可选方式所提供的信息传输方法。
第七方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该计算机可读存储介质在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选方式所提供的信息传输方法。
第八方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该计算机可读存储介质在计算机上运行时，使得计算机执行上述第二方面或第二方面的任一可选方式所提供的信息传输方法。
第九方面，提供了一种包含指令的计算机程序产品，当该计算机程序产品在计算机上 运行时，使得计算机执行上述第一方面或第一方面的任一可选方式所提供的信息传输方法。
第十方面，提供了一种包含指令的计算机程序产品，当该计算机程序产品在计算机上运行时，使得计算机执行上述第二方面或第二方面的任一可选方式所提供的信息传输方法。
第十一方面，提供一种信息传输系统，该信息传输系统包括：基站和用户设备，
在一种可能的实现方式中，基站包括上述第三方面或第三方面的任一可选方式所提供的信息传输装置，用户设备包括上述第四方面或第四方面的任一可选方式所提供的信息传输装置；
在另一种可能的实现方式中，基站为上述第五方面所提供的基站，用户设备为上述第六方面所提供的用户设备。
本发明实施例提供的技术方案带来的有益效果是：
本发明实施例提供的信息传输方法、装置及系统，基站通过向用户设备发送数量指示信息，使用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
附图说明
图1是相关技术提供的一种CoMP/FeCoMP通信系统的示意图；
图2是本发明各个实施例所涉及的一种实施环境的结构示意图；
图3是本发明实施例提供的一种信息传输方法的方法流程图；
图4是本发明实施例提供的一种下行控制信息的分布示意图；
图5是本发明实施例提供的另一种下行控制信息的分布示意图；
图6是本发明实施例提供的一种传输方案的切换示意图；
图7是本发明实施例提供的另一种传输方案的切换示意图；
图8是本发明实施例提供的同一传输方案中基站数量不同的场景之间的切换示意图；
图9是本发明实施例提供的一种信息传输装置的框图；
图10是本发明实施例提供的一种信息传输装置的框图；
图11是本发明实施例提供的一种基站的结构示意图；
图12是本发明实施例提供的一种用户设备的结构示意图；
图13是本发明实施例提供的一种信息传输系统的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
LTE/LTE-A通信系统通常包括基站和UE，基站与UE之间可以进行信息传输，且基站与UE之间的通信分为上行通信和下行通信，在下行通信中，基站与UE之间传输的信息可以包括下行数据信息和下行控制信息。
在下行通信中，基站可以将数据信息封装在无线资源控制(Radio Resource Control，RRC)信令中，并通过物理下行共享信道(Physical Downlink Share Channel，PDSCH)向UE发送RRC信令，基站可以将控制信息(例如调度信息)封装在DCI中，然后将DCI承载在PDCCH上，并通过PDCCH向UE发送DCI。其中，控制信息用于指示数据信息所占 用的时频资源，UE通过盲检测PDCCH接收DCI，进而对DCI进行解调、译码得到DCI中的控制信息，并根据控制信息确定数据信息所占用的时频资源，进而在数据信息所占用的时频资源上实现数据信息的接收。由此可知，DCI对可靠性的要求非常高，只有在DCI正确译码的前提下，UE才能够准确获得数据信息所占用的时频资源。
一个PDCCH通常占用多个控制信道元素(Control Channel Element，CCE)，PDCCH通常包括公共(Common)搜索空间和用户设备专用(UE specific)搜索空间，公共搜索空间中承载的DCI为公共DCI，该公共DCI中的信息通常主要是系统信息、系统信息的更新信息、寻呼信息等等，用户设备专用搜索空间中承载的DCI为UE specific DCI，UE specific DCI中的信息主要为UE特定的相关调度信息。基站可以根据信道质量等因素决定某个PDCCH所占用的CCE的数量，以及该PDCCH的公共搜索空间和用户设备专用搜索空间所占用的CCE的数量，UE在盲检测PDCCH时，可以在公共搜索空间和用户设备专用搜索空间中的所有可能的CCE上进行盲检测，当UE盲检测到自己的DCI后进一步解出该DCI的内容。
需要说明的是，LTE/LTE-A通信系统中，在一个调度周期内，每个UE仅有一个UE-specific DCI，UE在盲检测的过程中，一旦盲检测到自己的UE-specific DCI就会终止盲检测。若在一个调度周期内，存在多个基站同时对一个UE进行调度，则该多个基站可以采用协作调度的方式对该UE进行调度，相应的LTE/LTE-A通信系统也即是多点协作(Coordinate Multi-point，CoMP)或进一步增强多点协作(Futher enhancement CoMP，FeCoMP)通信系统，CoMP/FeCoMP通信系统无论是在上行通信还是下行通信中，都能够提高通信系统的性能，尤其能够改善小区边缘的频谱效率。
在CoMP/FeCoM通信系统中，调度同一个UE的多个基站中的一个基站为服务基站，其余基站都为协作基站，协作基站可以通过回程链路将自身对UE的调度信息发送给服务基站，然后由服务基站将接收到的调度信息和自身对UE的调度信息都封装在DCI中，并按照一定的规则将DCI映射到PDCCH上，通过PDCCH向UE发送DCI，UE可以选择DCI格式(format)对PDCCH中可能的CCE进行盲检测，当UE盲检测到自身的DCI后，UE终止盲检测，并根据盲检测到的DCI得到调度信息，之后UE可以根据调度信息接收数据信息。示例地，如图1所示，其示出了一种CoMP/FeCoMP通信系统的示意图，参见图1，基站001和基站002为同一调度周期内调度UE-003的两个基站，基站001为服务基站，基站002为协作基站，基站002通过回程链路将自身对UE-003的调度信息发送给基站001，基站001接收到该调度信息后，将该调度信息和自身对UE-003的调度信息整合在一起并封装在DCI中，并通过PDCCH发送给UE-003，UE-003通过盲检测PDCCH接收该DCI，进而根据该DCI确定调度信息，该调度信息可以包括基站001的调度信息和基站002的调度信息，确定调度信息后，UE-003可以根据该调度信息确定调度资源，并根据该调度资源接收基站001和基站002发送的数据(DATA)信息。但是，由于回程链路的传输时延通常大于一个调度周期，因此在CoMP/FeCoMP通信系统中，服务基站与UE之间交互的信息可能为过时(无效)的信息。
为了克服CoMP/FeCoMP通信系统中存在的问题，且实现在同一个调度周期内，多个基站可以对同一个UE进行调度，在5G通信的讨论中：在同一个调度周期内调度同一个UE的多个基站可以独立地向该UE发送下行控制信息(例如LTE中的DCI)，此时，会存 在多个针对该UE的下行控制信息，在这种情况下，如果UE盲检测到一个属于自己的一个下行控制信息后终止盲检测，则可能会存在下行控制信息漏检的情况；如果UE盲检测到属于自己的一个下行控制信息后继续盲检测，则由于UE不知道可能的下行控制信息的数量，UE需要盲检测所有可能的CCE，此时盲检测的复杂度很高。
请参考图2，其示出了本发明各个实施例所涉及的一种实施环境的结构示意图，该实施环境包括：网络侧设备、多个传输接收点(Transmitting and Receiving Point，TRP)设备和多个用户设备，网络侧设备与多个TRP设备中的每个TRP设备建立有通信连接，多个TRP设备可以与多个用户设备建立有通信连接，且每个TRP设备可以与多个用户设备中的至少一个用户设备连接，每个用户设备可以与多个TRP设备中的至少一个TRP设备连接，网络侧设备能够对多个TRP设备以及多个用户设备进行控制、管理。在本申请实施环境中：
网络侧设备可以为网络控制器、网络管理器等。
TRP设备例如但不限于全球移动通信(Global System for Mobile Communication，GSM)系统中的基站(Base Transceiver Station，BTS)，宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统中的NB(NodeB)，LTE中的演进型基站(evolved Node B，eNB)、中继站、车载设备、可穿戴设备以及未来5G通信系统中的接入网设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的接入网设备。
用户设备可以为一般意义上的UE，此外，用户设备也可以为移动台、接入终端、用户单元、用户站、移动站、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等。用户设备可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、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、可穿戴设备以及未来5G网络中的移动台或者未来演进的PLMN网络中的终端设备等。此外，用户设备还可以包括中继(Relay)等其他能够和接入网设备通信的设备。
如图2所示，本申请实施环境以网络侧设备为网络控制器01，以TRP设备为基站且多个基站包括基站021、基站022和基站023，以用户设备为UE且多个UE包括UE-031、UE-032和UE-033为例进行说明。在本申请中，多个基站可以对多个UE进行调度，且在一个调度周期内，一个基站可以对至少一个UE(例如两个UE)进行调度，至少一个基站(例如三个基站)可以对同一个UE进行调度，基站在对UE进行调度时，可以向UE发送调度信息，具体实施时，基站可以将调度信息封装在下行控制信息中，并通过PDCCH向UE发送下行控制信息，UE通过盲检测PDCCH来对下行控制信息进行接收，进而实现对调度信息的接收。
本申请主要介绍在一个调度周期内，至少一个基站对同一个UE进行调度的情况。本申请实施环境以基站021、基站022和基站023对UE-031进行调度为例进行说明，具体地：
网络控制器01可以预测预设时间段内调度UE-031的基站的最大数量，然后将该最大数量发送给在该预设时间段内调度UE-031的任一基站(例如发送给基站021)，基站021可以根据该最大数量生成数量指示信息，然后向UE-031发送该数量指示信息，该数量指示信息用于指示在预设时间段内针对同一个UE(例如UE-031)的下行控制信息的最大数量，UE-031在接收到该数量指示信息后，可以根据该数量指示信息接收下行控制信息，其中， UE-031根据该数量指示信息接收的下行控制信息可以是来自至少一个基站的下行控制信息。在本申请实施环境中，由于基站021、基站022和基站023对UE-031进行调度，因此，网络控制器01预测的最大数量为3，基站021生成的数量指示信息指示的针对UE-031的下行控制信息的最大数量为3，UE-031在根据该数量指示信息接收下行控制信息时，可以对PDCCH进行盲检测，当盲检测到的下行控制信息的数量等于该数量指示信息指示的数量(例如3)时，UE-031终止盲检测，此时，UE-031盲检测到的下行控制信息是来自基站021、基站022和基站023中的至少一个基站的下行控制信息。
请参考图3，其示出了本发明实施例提供的一种信息传输方法的方法流程图，该信息传输方法可以用于图2所示实施环境，参见图3，该信息传输方法可以包括：
步骤301、基站生成数量指示信息，数量指示信息用于指示下行控制信息的最大数量。
在本发明实施例中，基站可以获取预设时间段内调度同一个用户设备的基站的最大数量，然后根据该最大数量生成数量指示信息，该数量指示信息用于指示下行控制信息的最大数量，且其具体指的是预设时间段内针对同一个用户设备的下行控制信息的最大数量。其中，下行控制信息例如LTE中的DCI，基站可以为图2所示实施环境中的任一基站，用户设备可以为图2所示实施环境中的任一UE，本发明实施例以基站为图2所示实施环境中的基站021，用户设备为图2所示实施环境中的UE-031为例进行说明，则基站021可以获取预设时间段调度UE-031的基站的最大数量，然后根据该最大数量生成数量指示信息，该数量指示信息用于指示该预设时间段内针对UE-031的下行控制信息的最大数量。需要说明的是，基站021可以是在该预设时间段内调度UE-031的基站，也可以不是在该预设时间段内调度UE-031的基站，本发明实施例对此不作限定。可选地，基站021是在该预设时间段内调度UE-031的基站。其中，该预设时间段为用户设备当前接收到数量指示信息的时刻与下一次接收到数量指示信息的时刻之间的时间段，由此可知，该预设时间段通常是变化的，本发明实施例对此不作限定。
可选地，在本发明实施例中，下行控制信息可以是来自至少一个基站的下行控制信息，当下行控制信息来至少两个基站时，该数量指示信息用于指示来自该至少两个基站的下行控制信息的最大数量之和。
可选地，在本发明实施例中，下行控制信息包括公共下行控制信息和用户设备专用下行控制信息中的至少一种，公共下行控制信息通常承载在PDCCH的公共搜索空间中，其可以为系统信息、系统信息的更新信息、寻呼信息等等，用户设备专用下行控制信息通常承载在PDCCH的用户设备专用搜索空间中，其通常为用户设备特定的相关调度信息。
在本发明实施例中，当下行控制信息包括公共下行控制信息和用户设备专用下行控制信息中的任意一种下行控制信息时，该数量指示信息用于指示该任意一种下行控制信息的最大数量，且具体用于指示预设时间段内针对同一个用户设备的该任意一种下行控制信息的最大数量。例如，当下行控制信息包括公共下行控制信息，该数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，该数量指示信息用于指示预设时间段内针对UE-031的公共下行控制信息的最大数量为3；再例如，当下行控制信息包括用户设备专用下行控制信息，该数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，该数量指示信息用于指示预设时间段内针对UE-031的用户设备专用下行 控制信息的最大数量为3。
在本发明实施例中，当下行控制信息包括公共下行控制信息和用户设备专用下行控制信息时，本发明实施例中的数量指示信息可以包括下述两种可能的实现方案：
(1)、数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量。具体地：该数量指示信息用于指示预设时间段内针对同一个用户设备的公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，该数量指示信息用于指示预设时间段内针对UE-031的公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量都为3。
(2)、数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。具体地：该数量指示信息用于指示预设时间段内针对同一个用户设备的公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，该数量指示信息用于指示预设时间段内针对UE-031的公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和为3。
需要说明的是，当下行控制信息包括公共下行控制信息和用户设备专用下行控制信息时，数量指示信息指示的上述两种方案仅仅是示例性的，实际应用中，还可以根据需要设置其他的方案，例如，数量指示信息中可以包括公共指示信息和专用指示信息，公共指示信息用于公共下行控制信息的最大数量，专用指示信息用于指示用户设备专用下行控制信息的最大数量。示例地，数量指示信息以及其指示的最大数量可以如下表1所示：
表1
数量指示信息 最大数量
公共数量指示信息 1
专用数量指示信息 2
参见表1，数量指示信息包括公共数量指示信息和专用数量指示信息，公共数量指示信息指示的最大数量为1，表示预设时间段内针对同一用户设备(例如UE-031)的公共下行控制信息的最大数量为1；专用数量指示信息指示的最大数量为2，表示预设时间段内针对同一用户设备(例如UE-031)的用户设备专用下行控制信息的最大数量为1。
还需要说明的是，在本发明实施例中，网络控制器可以对基站进行管理，并与自身所管理的各个基站进行交互，以确定各个基站所调度的用户设备，进而统计并预测预设时间段内调度每个用户设备的基站的最大数量，并向任一基站发送该最大数量，使得该任一基站能够根据接收到的最大数量生成数量指示信息，并向用户设备发送相应的数量指示信息。以图1所示实施环境为例进行说明，网络控制器01可以与基站021、基站022和基站023中的每个基站进行交互，确定该每个基站所调度的UE，进而统计预测预设时间段内调度每个UE的基站的最大数量，并将该最大数量发给任一基站，例如，网络控制器01统计预测预设时间段内调度UE-032的基站的最大数量，并将该最大数量发送给基站021，使得基站021根据该最大数量生成数量指示信息。其中，网络控制器向基站发送最大数量时，还可以向基站发送相应的用户设备的相关信息，以便于基站能够向相应的用户设备发送数量指示 信息。例如，网络控制器01向基站021发送最大数量时，可以将UE-032的相关信息也发送给基站021，以使得基站021能够根据UE-032的相关信息向UE-032发送相应的数量指示信息。
还需要说明的是，当数量指示信息为如表1所示的数量指示信息时，网络控制器在向基站发送最大数量时，可以向基站发送公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量，以使得基站能够生成表1所示的数量指示信息，本发明实施例对此不作限定。
步骤302、基站向用户设备发送数量指示信息。
基站生成数量指示信息后，可以向用户设备发送数量指示信息。可选地，基站可以通过链路层信令向用户设备发送数量指示信息，该链路层信令可以包括数据链路层信令或无线链路层信令。其中，数据链路层信令可以为L2信令，又称为介质访问控制(Media Access Control，MAC)层信令，无线链路层信令可以为L3信令，又称为RRC信令。可选地，基站将数量指示信息承载在链路层信令中，并向用户设备发送链路层信令，以实现对数量指示信息的发送。
示例地，该步骤302继续以基站为图2所示实施环境中的基站021，用户设备为图2所示实施环境中的UE-031为例进行说明，则基站021可以通过链路层信令向UE-031发送数量指示信息。
需要说明的是，一个调度周期的时长通常为传输时间间隔(Transmission Time Interval，TTI)，其时长较短，容易导致基站与用户设备交互的信息失效，本发明实施例中，基站通过数据链路层信令或无线链路层信令向用户设备发送数量指示信息，数据链路层信令和无线链路层信令的更新周期都较长，且通常大于一个调度周期，因此，基站通过数据链路层信令或无线链路层信令向用户设备发送数量指示信息可以避免基站与用户设备交互的信息失效，保证交互信息的有效性。
步骤303、用户设备接收基站发送的数量指示信息。
基站向用户设备发送数量指示信息时，用户设备可以接收基站发送的数量指示信息，该数量指示信息用于指示下行控制信息的最大数量，且具体可以指示预设时间段内针对该用户设备(该步骤303的执行主体)的下行控制信息的最大数量。其中，关于数量指示信息的详细描述可以参考步骤301，本发明实施例在此不再赘述。
可选地，与步骤302对应，用户设备可以接收基站通过链路层信令发送的数量指示信息，该链路层信令可以包括数据链路层信令或无线链路层信令。其中，数据链路层信令可以为L2信令，又称为MAC层信令，无线链路层信令可以为L3信令，又称为RRC信令。可选地，用户设备接收基站发送的链路层信令，对该链路层信令进行解析得到数量指示信息。示例地，与步骤302对应，UE-031接收基站021可以通过链路层信令发送数量指示信息。
步骤304、用户设备根据数量指示信息接收下行控制信息。
用户设备接收到数量指示信息后，可以根据数量指示信息接收下行控制信息。可选地，下行控制信息通常承载在PDCCH上，因此，用户设备根据数量指示信息接收下行控制信息可以包括：用户设备根据数量指示信息对PDCCH进行盲检测。需要说明的是，该步骤304中的下行控制信息可以包括但不限于上述步骤302中的基站发送的下行控制信息，且该下 行控制信息可以来自至少一个基站，例如，该步骤304中的下行控制信息可以包括图2所示实施环境中的基站021、基站022和基站023发送的下行控制信息。该步骤304以用户设备为图2所示实施环境中的UE-031为例进行说明。
可选地，在本发明实施例中，下行控制信息包括公共下行控制信息和用户设备专用下行控制信息中的至少一种，公共下行控制信息通常承载在PDCCH的公共搜索空间中，其可以为系统信息、系统信息的更新信息、寻呼信息等等，用户设备专用下行控制信息通常承载在PDCCH的用户设备专用搜索空间中，其通常为用户设备特定的相关调度信息。
在本发明实施例中，当下行控制信息包括公共下行控制信息和用户设备专用下行控制信息中的任意一种下行控制信息时，该数量指示信息用于指示该任意一种下行控制信息的最大数量，且具体用于指示预设时间段内针对该用户设备(该步骤304的执行主体)的该任意一种下行控制信息的最大数量，用户设备可以根据数量指示信息对PDCCH中该任意一种下行控制信息所在的搜索空间进行盲检测，以对相应的下行控制信息进行接收。例如，当下行控制信息包括公共下行控制信息，该数量指示信息指示的数量为3，且该用户设备为图2所示实施环境中的UE-031时，该数量指示信息用于指示预设时间段内针对UE-031的公共下行控制信息的最大数量为3，UE-031可以根据数量指示信息对PDCCH的公共搜索空间进行盲检测，直至盲检测到3个公共下行控制信息，UE-031终止盲检测，或者，UE-031在盲检测的过程中盲检测到的公共下行控制信息的数量始终小于3，则UE-031盲检测完PDCCH的公共搜索空间的所有CCE之后，UE-031终止盲检测；再例如，当下行控制信息包括用户设备专用下行控制信息，该数量指示信息指示的数量为3，且该用户设备为图2所示实施环境中的UE-031时，该数量指示信息用于指示预设时间段内针对UE-031的用户设备专用下行控制信息的最大数量为3，UE-031可以根据数量指示信息对PDCCH的用户设备专用搜索空间进行盲检测，直至盲检测到3个用户设备专用下行控制信息，UE-031终止盲检测，或者，如果在盲检测的过程中UE-031盲检测到的用户设备专用下行控制信息的数量始终小于3，则UE-031盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，UE-031终止盲检测。
在本发明实施例中，当下行控制信息包括公共下行控制信息和用户设备专用下行控制信息时，本发明实施例中的数量指示信息包括的两种可能的实现方案可以如步骤301所述，针对该两种可能的实现方案，用户设备根据数量指示信息接收下行控制信息可以包括下述两种可能的实现方案：
(1)、数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量。具体地：该数量指示信息用于指示预设时间段内针对同一个用户设备的公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量，用户设备可以先根据数量指示信息对PDCCH的公共搜索空间进行盲检测，以对公共下行控制信息进行接收，然后根据数量指示信息对PDCCH的用户设备专用搜索空间进行盲检测，以对用户设备专用下行控制信息进行接收。在该第(1)种可能的实现方案中，可以包括下述四种情况：
1A)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，当用户设备盲检测到数量指示信息指示的数量个公共下行控制信息时，用户设备终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，当用户设备盲检测到数量指示信息指示的数量个用户设备专用下行控制信息时，用户设备终止对PDCCH的用户设 备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，当UE-031盲检测到3个公共下行控制信息时，UE-031终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，当UE-031盲检测到3个用户设备专用下行控制信息时，UE-031终止对PDCCH的用户设备专用搜索空间进行盲检测。
1B)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，如果用户设备盲检测到的公共下行控制信息的数量始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的公共搜索空间的所有CCE之后，用户设备终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，如果用户设备盲检测到的用户设备专用下行控制信息的数量始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，用户设备终止对PDCCH的用户设备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，如果UE-031盲检测到的公共下行控制信息的数量始终小于3，则UE-031盲检测完PDCCH的公共搜索空间的所有CCE之后，UE-031终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，如果UE-031盲检测到的用户设备专用下行控制信息的数量始终小于3，则UE-031盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，UE-031终止对PDCCH的用户设备专用搜索空间进行盲检测。
1C)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，当用户设备盲检测到数量指示信息指示的数量个公共下行控制信息时，用户设备终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，如果用户设备盲检测到的用户设备专用下行控制信息的数量始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，用户设备终止对PDCCH的用户设备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，当UE-031盲检测到3个公共下行控制信息时，UE-031终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，如果UE-031盲检测到的用户设备专用下行控制信息的数量始终小于3，则UE-031盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，UE-031终止对PDCCH的用户设备专用搜索空间进行盲检测。
1D)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，如果用户设备盲检测到的公共下行控制信息的数量始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的公共搜索空间的所有CCE之后，用户设备终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，当用户设备盲检测到数量指示信息指示的数量个用户设备专用下行控制信息时，用户设备终止对PDCCH的用户设备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，如果UE-031盲检测到的公共下行控制信息的数量始终小于3，则UE-031盲检测完PDCCH的公共搜索空间的所有CCE之后，UE-031终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，当UE-031盲检测到3个用户设备专用下行控制信息时， UE-031终止对PDCCH的用户设备专用搜索空间进行盲检测。
(2)、数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。具体地：该数量指示信息用于指示预设时间段内针对同一个用户设备的公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。用户设备可以先根据数量指示信息对PDCCH的公共搜索空间进行盲检测，以对公共下行控制信息进行接收，然后根据数量指示信息对PDCCH的用户设备专用搜索空间进行盲检测，以对用户设备专用下行控制信息进行接收。在该第(2)种可能的实现方案中，可以包括下述三种情况：
2A)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，如果用户设备盲检测到的公共下行控制信息的数量始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的公共搜索空间的所有CCE之后，用户设备终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，当用户设备盲检测到的用户设备专用下行控制信息的数量与公共下行控制信息的数量之和等于数量指示信息指示的数量时，用户设备终止对PDCCH的用户设备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，如果UE-031盲检测到的公共下行控制信息的数量始终小于3(例如盲检测到0、1或2个公共下行控制信息)，则UE-031盲检测完PDCCH的公共搜索空间的所有CCE之后，UE-031终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，当UE-031盲检测到的用户设备专用下行控制信息的数量(例如，盲检测到3、2或1个用户设备专用下行控制信息)与公共下行控制信息的数量之和等于数量指示信息指示的数量时，UE-031终止对PDCCH的用户设备专用搜索空间进行盲检测。
2B)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，如果用户设备盲检测到的公共下行控制信息的数量始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的公共搜索空间的所有CCE之后，用户设备终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，如果在对PDCCH的用户设备专用搜索空间进行盲检测的过程中，用户设备盲检测到的用户设备专用下行控制信息的数量与公共下行控制信息的数量之和始终小于数量指示信息指示的数量，则用户设备盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，终止对PDCCH的用户设备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，如果UE-031盲检测到的公共下行控制信息的数量始终小于3(例如，盲检测到0、1或2个公共下行控制信息)，则UE-031盲检测完PDCCH的公共搜索空间的所有CCE之后，UE-031终止对PDCCH的公共搜索空间进行盲检测，并对PDCCH的用户设备专用搜索空间进行盲检测，如果在对PDCCH的用户设备专用搜索空间进行盲检测的过程中，UE-031盲检测到的用户设备专用下行控制信息的数量与公共下行控制信息的数量之和始终小于3，则UE-031盲检测完PDCCH的用户设备专用搜索空间的所有CCE之后，终止对PDCCH的用户设备专用搜索空间进行盲检测。
2C)、用户设备对PDCCH的公共搜索空间进行盲检测的过程中，当用户设备盲检测到 数量指示信息指示的数量个公共下行控制信息时，用户设备终止对PDCCH的公共搜索空间进行盲检测，且不再对PDCCH的用户设备专用搜索空间进行盲检测。例如，当数量指示信息指示的数量为3，且用户设备为图2所示实施环境中的UE-031时，UE-031可以先对PDCCH的公共搜索空间进行盲检测，当UE-031盲检测到3个公共下行控制信息时，UE-031终止对PDCCH的公共搜索空间进行盲检测，且不再对PDCCH的用户设备专用搜索空间进行盲检测。
可选地，在本发明实施例中，PDCCH可以包括多个控制信道区域，该多个控制信道可以位于不同的子带上，用户设备可以同时对该多个控制信道区域进行监听，则用户设备在对PDCCH进行盲检测时，可以采用串行盲检测的方式或并行盲检测的方式对该多个控制信道区域进行盲检测。可选地，用户设备可以先确定自身的计算能力，当自身的计算能力较强时，用户设备可以采用并行盲检测的方式对该多个控制信道区域进行盲检测，当自身的计算能力较弱时，用户设备可以采用串行盲检测的方式对该多个控制信道区域进行盲检测。需要说明的是，每个控制信道区域中可以包括多个CCE，在采用并行盲检测的方式对多个控制信道区域进行盲检测时，在每个控制信道区域内，用户设备采用串行盲检测的方式对该每个控制信道区域中的CCE进行盲检测，本发明实施例对此不作限定。
可选地，在本发明实施例中，PDCCH包括多个控制信道区域，控制信道区域通常可以按照频率划分，从而该多个控制信道可以位于不同的子带上，针对同一个用户设备的多个下行控制信息可以位于同一个控制信道区域上，也可以位于不同的控制信道区域上，也即是，针对同一个用户设备的多个下行控制信息可以位于同一子带上，也可以位于不同的子带上。示例地，请参考图4，其示出了本发明实施例提供的一种下行控制信息的分布示意图，参见图4，PDCCH(图4中未示出)包括控制信道区域041，该控制信道区域041可以位于一个子带上，针对同一用户设备(例如UE-031)的两个下行控制信息位于该控制信道区域041上，UE-031可以根据数量指示信息指示的下行控制信息的数量对图4中的控制信道区域041进行盲检测，以对该两个下行控制信息进行接收，当UE-031盲检测到2个下行控制信息时，UE-031终止盲检测。示例地，请参考图5，其示出了本发明实施例提供的另一种下行控制信息的分布示意图，参见图5，PDCCH(图5中未示出)包括控制信道区域042、控制信道区域043、控制信道区域044和控制信道区域045，该控制信道区域042、控制信道区域043、控制信道区域044和控制信道区域045位于不同的子带上，针对同一用户设备(例如UE-031)的两个下行控制信息分别位于控制信道区域042和控制信道区域043上，假设UE-031同时对该控制信道区域042、控制信道区域043、控制信道区域044和控制信道区域045进行监听，则UE-031在对PDCCH进行盲检测时，可以采用串行盲检测的方式对控制信道区域042、控制信道区域043、控制信道区域044和控制信道区域045依次进行盲检测，也可以采用并行盲检测的方式对控制信道区域042、控制信道区域043、控制信道区域044和控制信道区域045同时进行盲检测，本发明实施例对此不作限定。例如，UE-031采用串行盲检测的方式对控制信道区域042、控制信道区域043、控制信道区域044和控制信道区域045依次进行盲检测，当UE-031盲检测到2个下行控制信息时，UE-031终止盲检测且不再对其他控制信道区域进行盲检测，如图5所示，UE-031在控制信道区域043中盲检测到下行控制信息时，UE-031终止盲检测，不再对控制信道区域044和控制信道区域045进行盲检测；再例如，UE-031采用并行盲检测的方式对控制信道区域042、控制信道区 域043、控制信道区域044和控制信道区域045同时进行盲检测，当UE-031盲检测到2个下行控制信息时，UE-031终止盲检测而不再对所有控制信道区域进行盲检测。需要说明的是，该图4和图5是以下行控制信息为LTE中的DCI为例进行说明的，本领域技术人员应当明白，在5G通信系统中，下行控制信息还可以为其他的下行控制信息，该图4和图5不能理解为对本发明实施例方案的限制。
需要说明的是，在本发明实施例中，数量指示信息可以具有一个缺省值，当用户设备接收到数量指示信息时，用户设备根据接收到的数量指示信息指示的下行控制信息的最大数量接收下行控制信息；当用户设备未接收到数量指示信息时，用户设备可以根据数量指示信息的缺省值接收下行控制信息。可选地，在本发明实施例中，数量指示信息的缺省值可以为1，也即是，当用户设备未接收到数量指示信息时，用户设备默认下行控制信息的最大数量为1，用户设备盲检测到1个下行控制信息时，终止盲检测。
还需要说明的是，本发明实施例是以用户设备先对PDCCH的公共搜索空间进行盲检测，再对PDCCH的用户设备专用搜索空间进行盲检测进行盲检测为例进行说明的，实际应用中，用户设备还可以按照其他顺序或盲检测方法对PDCCH的公共搜索空间和用户设备专用搜索空间进行盲检测，本发明实施例不对用户设备盲检测的检测方法和检测顺序作限定。
本发明实施例提供的信息传输方法，用户设备能够根据基站发送的数量指示信息进行对PDCCH进行盲检测以对下行控制信息进行接收，当用户设备盲检测到数量指示信息指示的数量个下行控制信息时，用户设备终止盲检测。通过该方案，本发明实施例一方面可以避免下行控制信息漏检的情况，另一方面可以避免由于用户设备需要对PDCCH的所有CCE进行盲检测所导致的盲检测复杂度较高的问题。且本发明实施例无需协作基站向服务基站发送调度信息，可以避免回程链路的传输时延较长导致的基站与用户设备交互的信息过时的情况。
综上所述，本发明实施例提供的信息传输方法，基站生成数量指示信息并向用户设备发送数量指示信息，该数量指示信息用于指示下行控制信息的最大数量，用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
本发明实施例提供的信息传输方法，基站通过向用户设备发送数量指示信息，使用户设备根据该数量指示信息优化盲检测过程，减少盲检测的次数，降低用户设备的复杂度。
本发明实施例提供的信息传输方法可以支持不同传输方案之间的切换，还可以支持同一传输方案中基站数量不同的场景之间的切换，具体请参考下述图6至图8所示实施例。
请参考图6，其示出了本发明实施例提供的一种传输方案的切换示意图，参见图6，在T1时刻，仅基站021对UE-031进行调度，基站022不对UE-031进行调度，针对UE-031的下行控制信息的数量为1，该T1时刻对应的传输方案可以为单基站(或者说单TRP)传输方案；在T2时刻，基站021和基站022同时对UE-031进行调度，针对UE-031的下行控制信息的数量为2，该T2时刻对应的传输方案可以为多基站(或者说多TRP)传输方案，根据T1时刻调度UE-031的基站的数量的变化，下行控制信息的数量也发生了变化。
本发明实施例中，网络控制器(图6中未示出)可以与基站021和基站022交互，统计并预计预设时间段(该预设时间段包括T1时刻和T2时刻)内调度UE-031的基站的最大 数量，然后向基站021(或基站022)发送该最大数量，基站021接收到该最大数量后，根据该最大数量生成数量指示信息并通过链路层信令(例如L2信令或L3信令)向UE-031发送该数量指示信息，使UE-031根据该数量指示信息对PDCCH进行盲检测，其中，该数量指示信息用于指示预设时间段内针对UE-031的下行控制信息的最大数量，该下行控制信息可以为公共下行控制信息和用户设备专用下行控制信息中的至少一种，本实施例以该下行控制信息为用户设备专用下行控制信息为例进行说明，当下行控制信息为LTE中的DCI时，下行控制信息的最大数量可以采用MAX_DCI_NUM来表示，在该图6所示实施例中，MAX_DCI_NUM＝2，表示用户设备专用下行控制信息的数量为2，由于MAX_DCI_NUM＝2，因此在T1时刻，UE-031盲检测到1个用户设备专用下行控制信息后继续盲检测，直到盲检测完PDCCH中所有可能的CCE，而在T2时刻，UE-031在盲检测到2个用户设备专用下行控制信息时即终止盲检测。
此外，在该图6所示实施例中，T1时刻对应的传输方案为单基站传输方案，T2时刻对应的传输方案为多基站传输方案，由于传输方案发生了变化，因此，本发明实施例提供的信息传输方法支持单基站传输方案与多基站传输方案之间的切换。
请参考图7，其示出了本发明实施例提供的另一种传输方案的切换示意图，参见图7，在T1时刻，基站021、基站022和基站023采用非相干联合传输(Non-coherent Joint Transmission，NC-JT)方案对UE-031进行调度，针对UE-031的下行控制信息的数量可以为3；在T2时刻，仅由基站022采用调度协作/波束协作(Coordinated Scheduling/Coordinated Beamforming，CS/CB)方案或动态协作点选择(Dynamic Point Selection，DPS)方案对UE-031进行调度，基站021不对UE-031进行调度，针对UE-031的下行控制信息的数量可以为1。由此可知，从T1时刻到T2时刻，针对UE-031的下行控制信息的数量也发生了变化，且下行控制信息的数量由T1时刻的3变化为T2时刻的1。
本发明实施例中，网络控制器(图7中未示出)可以与基站021、基站022和基站023交互，统计并预计预设时间段(该预设时间段包括T1时刻和T2时刻)内调度UE-031的基站的最大数量，然后向基站022(或基站021、基站023)发送该最大数量，基站022接收到该最大数量后，根据该最大数量生成数量指示信息并通过链路层信令(例如L2信令或L3信令)向UE-031发送该数量指示信息，使UE-031根据该数量指示信息对PDCCH进行盲检测，其中，该数量指示信息用于指示预设时间段内针对UE-031的下行控制信息的最大数量，该下行控制信息可以为公共下行控制信息和用户设备专用下行控制信息中的至少一种，本实施例以该下行控制信息为用户设备专用下行控制信息为例进行说明，当下行控制信息为LTE中的DCI时，下行控制信息的最大数量可以采用MAX_DCI_NUM来表示，在该图7所示实施例中，MAX_DCI_NUM＝3，表示用户设备专用下行控制信息的数量为3，由于MAX_DCI_NUM＝3，因此在T1时刻，UE-031盲检测到3个用户设备专用下行控制信息时终止盲检测，而在T2时刻，UE-031对PDCCH进行盲检测直至盲检测完PDCCH中所有可能的CCE。
此外，在该图7所示实施例中，T1时刻对应的传输方案为NC-JT方案，T2时刻对应的传输方案为CS/CB方案或DPS方案，该NC-JT方案、CS/CB方案和DPS方案都为协作传输方案，因此，本发明实施例提供的信息传输方法支持不同协作传输方案之间的切换。
请参考图8，其示出了本发明实施例提供的同一传输方案中基站数量不同的场景之间的 切换示意图，参见图8，在T1时刻，基站021和基站022采用NC-JT方案对UE-031进行调度，针对UE-031的下行控制信息的数量可以为2；在T2时刻，基站021、基站022和基站023采用NC-JT方案对UE-031进行调度，针对UE-031的下行控制信息的数量可以为3。由此可知，从T1时刻到T2时刻，针对UE-031的下行控制信息的数量也发生了变化，且下行控制信息的数量由T1时刻的2变化为T2时刻的3。
本发明实施例中，网络控制器(图8中未示出)可以与基站021、基站022和基站023交互，统计并预计预设时间段(该预设时间段包括T1时刻和T2时刻)内调度UE-031的基站的最大数量，然后向基站021(或基站022、基站023)发送该最大数量，基站021接收到该最大数量后，根据该最大数量生成数量指示信息并通过链路层信令(例如L2信令或L3信令)向UE-031发送该数量指示信息，使UE-031根据该数量指示信息对PDCCH进行盲检测，其中，该数量指示信息用于指示预设时间段内针对UE-031的下行控制信息的最大数量，该下行控制信息可以为公共下行控制信息和用户设备专用下行控制信息中的至少一种，本实施例以该下行控制信息为用户设备专用下行控制信息为例进行说明，当下行控制信息为LTE中的DCI时，下行控制信息的最大数量可以采用MAX_DCI_NUM来表示，在该图8所示实施例中，MAX_DCI_NUM＝3，表示用户设备专用下行控制信息的数量为3，由于MAX_DCI_NUM＝3，因此在T1时刻，UE-031对PDCCH进行盲检测直至盲检测完PDCCH中所有可能的CCE，而在T2时刻，UE-031盲检测到3个用户设备专用下行控制信息时终止盲检测。
此外，在该图8所示实施例中，T1时刻对应的传输方案和T2时刻对应的传输方案都为NC-JT方案，而T1时刻的场景为2个基站同时对UE-031进行调度的场景，T2时刻的场景为3个基站同时对UE-031进行调度的场景，因此，本发明实施例提供的信息传输方法可以支持同一协作传输方案中基站数量不同的场景之间的切换。
需要说明的是，在图6至图8所示实施例中，如果基站没有向UE-031发送数量指示信息，则在T1时刻和T2时刻，UE-031都需要盲检测完PDCCH中所有可能的CCE，盲检测的复杂度较高，本发明实施例通过向UE-031发送数量指示信息，可以降低盲检测的复杂度。
在未来的5G通信系统中，随着移动通信的快速发展，在系统容量，瞬时峰值速率，频谱效率，小区边缘用户吞吐量以及时延等诸多方面有了更高的要求，目前CoMP/FeCoMP技术无论是在上行通信还是下行通信，都能够提高系统性能，尤其是改善小区边缘的频谱效率，本发明实施例提供的信息传输方法能够很好的适用于CoMP/FeCoMP，从而能够提高系统性能，改善小区边缘的频谱效率。
下述为本申请的装置实施例，可以用于执行本申请的方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
请参考图9，其示出了本发明实施例提供的一种信息传输装置900的框图。该信息传输装置900可以通过软件、硬件或者两者的结合实现成为基站的部分或全部，该基站可以为图2所示实施环境中的任一基站。参见图9，该信息传输装置900可以包括但不限于：
生成模块910，用于生成数量指示信息，数量指示信息用于指示下行控制信息的最大数量；
发送模块920，用于向用户设备发送数量指示信息。
可选地，发送模块920，用于通过链路层信令向用户设备发送数量指示信息。
综上所述，本发明实施例提供的信息传输装置，基站通过生成数量指示信息并向用户设备发送数量指示信息，该数量指示信息用于指示下行控制信息的最大数量，使用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
请参考图10，其示出了本发明实施例提供的一种信息传输装置1000的框图。该信息传输装置1000可以通过软件、硬件或者两者的结合实现成为用户设备的部分或全部，该用户设备可以为图2所示实施环境中的任一用户设备(例如用户设备031)。参见图10，该信息传输装置1000可以包括：
第一接收模块1010，用于接收数量指示信息，数量指示信息用于指示下行控制信息的最大数量；
第二接收模块1020，用于根据数量指示信息接收下行控制信息。
可选地，第一接收模块1010，用于接收通过链路层信令发送的数量指示信息。
综上所述，本发明实施例提供的信息传输装置，用户设备通过接收数量指示信息并根据数量指示信息接收下行控制信息，该数量指示信息用于指示下行控制信息的最大数量，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
需要说明的是：上述实施例提供的信息传输装置在传输信息时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的信息传输装置与信息传输方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
请参考图11，其示出了本发明实施例提供的一种基站1100的结构示意图。该基站1100可以为图2所示实施环境中的任一基站，用于执行图3所示实施例的部分方法，参见图11，该基站1100包括：处理器1110和发射机1120，处理器1110和发射机1120通过总线1130连接，
处理器1110包括一个或者一个以上处理核心。处理器1110通过运行软件程序以及单元，从而执行各种功能应用以及数据处理。
可选地，如图11所示，该基站1100还包括：存储器1140、网络接口1150和接收机1160，存储器1140、网络接口1150、接收机1160分别通过总线1130与处理器1110和发射机1120连接。
其中，网络接口1150可以为多个，该网络接口1150用于该基站1100与其它存储设备或者网络设备进行通信。其中，网络接口1150是可选地，实际应用中，基站1100可以通过发射机1120和接收机1160与其它存储设备或者网络设备进行通信，所以，基站1100中可以没有网络接口，本发明实施例对此不作限定。
处理器1110，用于生成数量指示信息，数量指示信息用于指示下行控制信息的最大数量；
发射机1120，用于向用户设备发送数量指示信息。
可选地，发射机1120，用于通过链路层信令向用户设备发送数量指示信息。
综上所述，本发明实施例提供的基站，通过生成数量指示信息并向用户设备发送数量 指示信息，该数量指示信息用于指示下行控制信息的最大数量，使用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
请参考图12，其示出了本发明实施例提供的一种用户设备1200的结构示意图。该用户设备1200可以为图2所示实施环境中的任一用户设备(例如用户设备031)，用于执行图3所示实施例的部分方法，参见图12，该用户设备1200包括：接收机1210和处理器1220，接收机1210和处理器1220通过总线1230连接，
处理器1220包括一个或者一个以上处理核心。处理器1220通过运行软件程序以及单元，从而执行各种功能应用以及数据处理。
可选地，如图12所示，该用户设备1200还包括：存储器1240、网络接口1250和发射机1260，存储器1240、网络接口1250、发射机1260分别通过总线1230与接收机1210和处理器1220连接。
其中，网络接口1250可以为多个，该网络接口1250用于该用户设备1200与其它存储设备或者网络设备进行通信。其中，网络接口1250是可选地，实际应用中，用户设备1200可以通过接收机1210和发射机1260与其它存储设备或者网络设备进行通信，所以，用户设备1200中可以没有网络接口，本发明实施例对此不作限定。
接收机1210，用于接收数量指示信息，数量指示信息用于指示下行控制信息的最大数量；
处理器1220，用于根据数量指示信息接收下行控制信息。
可选地，接收机1210，用于接收通过链路层信令发送的数量指示信息。
综上所述，本发明实施例提供的用户设备，通过接收数量指示信息并根据数量指示信息接收下行控制信息，该数量指示信息用于指示下行控制信息的最大数量，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
可选地，在上述图9至图12所示实施例中，下行控制信息来自至少一个基站。
可选地，在上述图9至图12所示实施例中，下行控制信息包括：公共下行控制信息和用户设备专用下行控制信息中的至少一种。
可选地，在上述图9至图12所示实施例中，下行控制信息包括公共下行控制信息和用户设备专用下行控制信息，
数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量；或者，数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。
可选地，在上述图9至图12所示实施例中，链路层信令包括：数据链路层信令或无线链路层信令。
请参考图13，其示出了本发明实施例提供的一种信息传输系统1300的结构示意图，参见图13，该信息传输系统1300包括基站1310和用户设备1320。
在一种可能的实现方式中，基站1310包括图9所示的信息传输装置900；用户设备1320包括图10所示的信息传输装置1000；在另一种可能的实现方式中，基站1310为图11所示的基站1100，用户设备1320为图12所示的用户设备1200。
综上所述，本发明实施例提供的信息传输系统，基站生成数量指示信息并向用户设备 发送数量指示信息，该数量指示信息用于指示下行控制信息的最大数量，用户设备根据数量指示信息接收下行控制信息，可以解决用户设备盲检测的复杂度较高的问题，降低用户设备盲检测的复杂度。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现，该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生本发明实施例的流程或功能。该计算机可以是通用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机的可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质，或者半导体介质(例如固态硬盘)等。
本申请中字符“/”，仅仅是一种描述关联对象的关联关系，一般表示前后关联对象是一种“或”的关系。例如，LTE/LTE-A表示LTE或LTE-A，CoMP/FeCoMP表示CoMP或FeCoMP。
上述本发明实施例序号仅仅为了描述，不代表实施例的优劣。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (25)

  1. 一种信息传输方法，其特征在于，所述方法包括：
    生成数量指示信息，所述数量指示信息用于指示下行控制信息的最大数量；
    向用户设备发送所述数量指示信息。
  2. 根据权利要求1所述的方法，其特征在于，所述下行控制信息来自至少一个基站。
  3. 根据权利要求1所述的方法，其特征在于，所述下行控制信息包括：公共下行控制信息和用户设备专用下行控制信息中的至少一种。
  4. 根据权利要求3所述的方法，其特征在于，所述下行控制信息包括公共下行控制信息和用户设备专用下行控制信息，
    所述数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量；或者，
    所述数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述向用户设备发送所述数量指示信息，包括：通过链路层信令向所述用户设备发送所述数量指示信息。
  6. 根据权利要求5所述的方法，其特征在于，所述链路层信令包括：数据链路层信令或无线链路层信令。
  7. 一种信息传输方法，其特征在于，所述方法包括：
    接收数量指示信息，所述数量指示信息用于指示下行控制信息的最大数量；
    根据所述数量指示信息接收下行控制信息。
  8. 根据权利要求7所述的方法，其特征在于，所述下行控制信息来自至少一个基站。
  9. 根据权利要求7所述的方法，其特征在于，所述下行控制信息包括：公共下行控制信息和用户设备专用下行控制信息中的至少一种。
  10. 根据权利要求9所述的方法，其特征在于，所述下行控制信息包括公共下行控制信息和用户设备专用下行控制信息，
    所述数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量；或者，
    所述数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。
  11. 根据权利要求7至10任一所述的方法，其特征在于，所述接收数量指示信息，包括：接收通过链路层信令发送的数量指示信息。
  12. 根据权利要求11所述的方法，其特征在于，所述链路层信令包括：数据链路层信令或无线链路层信令。
  13. 一种信息传输装置，其特征在于，所述装置包括：
    生成模块，用于生成数量指示信息，所述数量指示信息用于指示下行控制信息的最大数量；
    发送模块，用于向用户设备发送所述数量指示信息。
  14. 根据权利要求13所述的装置，其特征在于，所述下行控制信息来自至少一个基站。
  15. 根据权利要求13所述的装置，其特征在于，所述下行控制信息包括：公共下行控制信息和用户设备专用下行控制信息中的至少一种。
  16. 根据权利要求15所述的装置，其特征在于，所述下行控制信息包括公共下行控制信息和用户设备专用下行控制信息，
    所述数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量；或者，
    所述数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。
  17. 根据权利要求13至16任一所述的装置，其特征在于，所述发送模块，用于通过链路层信令向所述用户设备发送所述数量指示信息。
  18. 根据权利要求17所述的装置，其特征在于，所述链路层信令包括：数据链路层信令或无线链路层信令。
  19. 一种信息传输装置，其特征在于，所述装置包括：
    第一接收模块，用于接收数量指示信息，所述数量指示信息用于指示下行控制信息的最大数量；
    第二接收模块，用于根据所述数量指示信息接收下行控制信息。
  20. 根据权利要求19所述的装置，其特征在于，所述下行控制信息来自至少一个基站。
  21. 根据权利要求19所述的装置，其特征在于，所述下行控制信息包括：公共下行控制信息和用户设备专用下行控制信息中的至少一种。
  22. 根据权利要求21所述的装置，其特征在于，所述下行控制信息包括公共下行控制信息和用户设备专用下行控制信息，
    所述数量指示信息用于指示公共下行控制信息的最大数量和用户设备专用下行控制信息的最大数量；或者，
    所述数量指示信息用于指示公共下行控制信息的最大数量与用户设备专用下行控制信息的最大数量之和。
  23. 根据权利要求19至22任一所述的装置，其特征在于，所述第一接收模块，用于接收通过链路层信令发送的数量指示信息。
  24. 根据权利要求23所述的装置，其特征在于，所述链路层信令包括：数据链路层信令或无线链路层信令。
  25. 一种信息传输系统，其特征在于，所述系统包括：基站和用户设备，所述基站包括权利要求13至18任一所述的信息传输装置，所述用户设备包括权利要求19至24任一所述的信息传输装置。
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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3445116B1 (en) * 2016-06-29 2022-05-11 Huawei Technologies Co., Ltd. Communication method, apparatus and system
CN110169181B (zh) 2017-01-06 2021-01-15 华为技术有限公司 通信方法、装置和系统
WO2020220330A1 (zh) * 2019-04-30 2020-11-05 Oppo广东移动通信有限公司 无线通信的方法、终端设备和网络设备
WO2022077164A1 (zh) * 2020-10-12 2022-04-21 北京小米移动软件有限公司 信息的接收、发送方法、装置、设备及可读存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102347919A (zh) * 2010-08-05 2012-02-08 普天信息技术研究院有限公司 一种盲检测方法
WO2013042991A1 (en) * 2011-09-23 2013-03-28 Pantech Co., Ltd. Method and apparatus for dynamically transmitting control information in wireless communication system
CN103227694A (zh) * 2013-02-21 2013-07-31 北京创毅讯联科技股份有限公司 下行控制信息通知、解码方法与装置
CN106301671A (zh) * 2015-05-15 2017-01-04 中兴通讯股份有限公司 下行控制信道的传输方法、配置方法及终端、基站

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103139819B (zh) * 2009-08-28 2016-03-30 华为技术有限公司 确定搜索空间、候选控制信道资源的方法及装置
JP2013509832A (ja) * 2009-10-30 2013-03-14 リサーチ イン モーション リミテッド キャリアアグリゲーションを用いた通信のためのブラインド復号化の数の減少
CN101714892B (zh) * 2009-11-02 2014-12-31 中兴通讯股份有限公司 一种下行控制信息的传输方法及系统
CN101702828B (zh) * 2009-11-03 2013-01-02 中兴通讯股份有限公司 资源分配方法及系统、盲检测方法、基站、用户设备
KR101777416B1 (ko) * 2009-11-26 2017-09-27 엘지전자 주식회사 반송파 집성 시스템에서 단말의 통신 방법 및 단말
KR20110065329A (ko) * 2009-12-09 2011-06-15 엘지전자 주식회사 반송파 집성 시스템에서 제어정보 전송 방법, 수신 방법 및 단말
CA2784271C (en) * 2009-12-17 2014-07-08 Lg Electronics Inc. Apparatus and method of avoiding control channel blocking
KR101828621B1 (ko) * 2010-04-02 2018-03-22 인터디지탈 패튼 홀딩스, 인크 업링크 사운딩 기준 신호 구성 및 전송 방법
WO2011162522A2 (ko) 2010-06-21 2011-12-29 엘지전자 주식회사 채널 상태 정보 전송 방법 및 장치
US9642125B2 (en) * 2011-06-17 2017-05-02 Lg Electronics Inc. Method for transceiving data in wireless access system and terminal therefor
WO2013015627A2 (en) * 2011-07-28 2013-01-31 Lg Electronics Inc. Method of transmitting/receiving downlink control information and user equipment therefor in wireless access system
ES2719076T3 (es) * 2012-01-20 2019-07-08 Lg Electronics Inc Método de recepción de información de control y dispositivo para lo mismo
US9432986B2 (en) * 2012-05-08 2016-08-30 Lg Electronics Inc. Control signal transceiving method and apparatus for same
KR101718672B1 (ko) * 2012-06-14 2017-03-21 후지쯔 가부시끼가이샤 업링크 제어 채널 자원들을 결정하기 위한 방법 및 장치
CN104349460B (zh) * 2013-07-25 2019-09-24 中兴通讯股份有限公司 上下行配置信息通知、获取方法以及基站和用户设备
EP3232595B1 (en) * 2014-12-08 2021-05-19 LG Electronics Inc. Method for transmitting uplink control information and device therefor
US10588039B2 (en) * 2015-01-02 2020-03-10 Lg Electronics Inc. Method for reporting channel state in wireless communication system, and apparatus therefor
EP3641193A4 (en) * 2017-06-15 2021-03-24 LG Electronics Inc. PROCESS FOR CARRYING OUT COORDINATED TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFORE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102347919A (zh) * 2010-08-05 2012-02-08 普天信息技术研究院有限公司 一种盲检测方法
WO2013042991A1 (en) * 2011-09-23 2013-03-28 Pantech Co., Ltd. Method and apparatus for dynamically transmitting control information in wireless communication system
CN103227694A (zh) * 2013-02-21 2013-07-31 北京创毅讯联科技股份有限公司 下行控制信息通知、解码方法与装置
CN106301671A (zh) * 2015-05-15 2017-01-04 中兴通讯股份有限公司 下行控制信道的传输方法、配置方法及终端、基站

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3579482A4

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