WO2020082313A1 - Dci的接收方法、发送方法、装置及存储介质 - Google Patents

Dci的接收方法、发送方法、装置及存储介质 Download PDF

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Publication number
WO2020082313A1
WO2020082313A1 PCT/CN2018/111980 CN2018111980W WO2020082313A1 WO 2020082313 A1 WO2020082313 A1 WO 2020082313A1 CN 2018111980 W CN2018111980 W CN 2018111980W WO 2020082313 A1 WO2020082313 A1 WO 2020082313A1
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WO
WIPO (PCT)
Prior art keywords
base station
terminal
dci
bwp
activated
Prior art date
Application number
PCT/CN2018/111980
Other languages
English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to US17/287,103 priority Critical patent/US20210377998A1/en
Priority to EP18937732.8A priority patent/EP3866533A4/en
Priority to CN201880001781.2A priority patent/CN109496457B/zh
Priority to PCT/CN2018/111980 priority patent/WO2020082313A1/zh
Publication of WO2020082313A1 publication Critical patent/WO2020082313A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a DCI (Downlink Control Information) reception method, transmission method, device, and storage medium.
  • DCI Downlink Control Information
  • BWP Bandwidth Part
  • the terminal may monitor the DCI sent by the base station on the activated BWP. Then, the terminal can receive the downlink data sent by the base station on the PDSCH (Physical Downlink Shared Channel) based on the received DCI, or through the PUSCH (Physical Uplink Shared Channel) based on the received DCI Send uplink data to the base station.
  • PDSCH Physical Downlink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • NR unlicensed technology which is used to communicate with NR technology on unlicensed spectrum.
  • the channel detection must be performed through the LBT (Listen Before Talk, listen first) mechanism. If the detection result is that the channel is idle, the unlicensed spectrum can be accessed.
  • the base station After the base station configures an activated BWP for the terminal, if the base station detects that the channel is busy on the activated BWP, the base station cannot send DCI to the terminal through the activated BWP, resulting in an inability to effectively schedule and control the terminal, such as scheduling
  • the terminal performs uplink and downlink data transmission.
  • Embodiments of the present disclosure provide a DCI receiving method, transmitting method, device, and storage medium.
  • the technical solution is as follows:
  • a DCI receiving method including:
  • the terminal monitors the DCI sent by the base station on n activated BWPs configured by the base station, where n is an integer greater than 1;
  • the terminal After the terminal monitors the first DCI sent by the base station on the first activated BWP of the n activated BWPs, the terminal determines from the n activated BWP that the second activation needs to continue to be monitored BWP;
  • the terminal continues to monitor the DCI sent by the base station on the second activated BWP, and stops monitoring the DCI sent by the base station on other activated BWP except the second activated BWP.
  • the terminal determining the second activated BWP that needs to continue to be monitored from the n activated BWPs includes:
  • the terminal determines the first activated BWP as the second activated BWP that needs to continue to be monitored.
  • the terminal determining the second activated BWP that needs to continue to be monitored from the n activated BWPs includes:
  • the terminal determines the second activated BWP that needs to continue to be monitored according to the monitoring indication information in the first DCI; wherein the monitoring indication information includes an identifier of the second activated BWP.
  • the method further includes:
  • the terminal determines the end time of the current channel occupation time obtained by the base station through channel detection, and the current channel occupation time is the channel occupation time to which the first DCI belongs;
  • the terminal When the end time of the current channel occupation time arrives, the terminal starts executing again from the step of monitoring the DCI sent by the base station on the n active BWPs configured on the base station.
  • the terminal determining the end time of the current channel occupation time obtained by the base station through channel detection includes:
  • the terminal receives the second DCI sent by the base station, and the second DCI indicates the duration of the current channel occupation time, the terminal according to the start time of the current channel occupation time and the current channel
  • the length of the occupied time determines the end time of the current channel occupied time
  • the terminal receives the second DCI sent by the base station, and the second DCI indicates the end time slot or end symbol position within the current channel occupation time, and the terminal places the end time slot or end symbol position Determined as the end time of the current channel occupation time; or,
  • the terminal receives the second DCI sent by the base station, and the second DCI indicates the uplink and downlink format information of the time slot within the current channel occupation time, and the terminal compares the last uplink and downlink format information with the time slot Or the symbol is determined as the end time of the current channel occupation time;
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the method further includes:
  • the terminal receives BWP configuration information and / or BWP activation information from the base station, and the BWP configuration information and / or BWP activation information is used to instruct the terminal to monitor the DCI sent by the base station on the n activated BWP .
  • a DCI sending method including:
  • the base station detects the activated BWP in the channel idle state among the n activated BWPs configured for the terminal, where n is an integer greater than 1;
  • the base station selects the first activated BWP from the activated BWP in the channel idle state
  • the base station sends a first DCI to the terminal through the first activated BWP.
  • the first DCI carries monitoring indication information, where the monitoring indication information includes: an identifier of a second active BWP that the terminal needs to continue monitoring after receiving the first DCI.
  • the base station before the current channel occupation time ends, the base station only sends DCI to the terminal through the second activated BWP, where the current channel occupation time is the channel occupation to which the first DCI belongs time.
  • the second DCI sent by the base station to the terminal indicates the duration of the current channel occupation time, which is used by the terminal according to the start time of the current channel occupation time and the current channel occupation The length of time, to determine the end time of the current channel occupation time; or,
  • the second DCI sent by the base station to the terminal indicates an end time slot or end symbol position within the current channel occupation time, and is used by the terminal to determine the end time slot or end symbol position as the local End time of secondary channel occupation time; or,
  • the second DCI sent by the base station to the terminal indicates the uplink and downlink format information of the time slot within the current channel occupation time, and is used by the terminal to determine the time slot or symbol corresponding to the last uplink and downlink format information as the Describe the end time of the channel occupation time;
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the method further includes:
  • the base station sends BWP configuration information and / or BWP activation information to the terminal, where the BWP configuration information and / or BWP activation information is used to instruct the terminal to monitor the DCI sent by the base station on the n activated BWPs .
  • a DCI receiving device which is applied to a terminal, and the device includes:
  • the monitoring module is configured to monitor the DCI sent by the base station on n active BWPs configured by the base station, where n is an integer greater than 1;
  • the BWP determining module is configured to determine that, from the n activated BWPs, it is necessary to continue after the monitoring module detects the first DCI sent by the base station on the first activated BWP of the n activated BWPs Monitor the second activated BWP;
  • the monitoring module is further configured to continue to monitor the DCI sent by the base station on the second activated BWP, and stop monitoring the DCI sent by the base station on other activated BWP except the second activated BWP .
  • the BWP determination module is configured to determine the first activated BWP as the second activated BWP that needs to continue to be monitored.
  • the BWP determination module is configured to determine the second activated BWP that needs to continue to be monitored according to the monitoring indication information in the first DCI; wherein the monitoring indication information includes the second activation BWP logo.
  • the device further includes:
  • the time determination module is configured to determine the end time of the current channel occupation time obtained by the base station through channel detection, and the current channel occupation time is the channel occupation time to which the first DCI belongs;
  • the monitoring module is further configured to start execution of the step of monitoring the DCI sent by the base station again from the n active BWPs configured on the base station when the end time of the current channel occupation time arrives.
  • the time determination module includes:
  • the first determining submodule is configured to receive the second DCI sent by the base station, and the second DCI indicates the duration of the current channel occupation time, according to the start time of the current channel occupation time and the The duration of the current channel occupation time, to determine the end time of the current channel occupation time; or,
  • the second determining submodule is configured to receive the second DCI sent by the base station, and the second DCI indicates an end time slot or end symbol position within the current channel occupation time, and the end time slot or The end symbol position is determined as the end time of the current channel occupation time; or,
  • the third determining submodule is configured to receive the second DCI sent by the base station, and the second DCI indicates the uplink and downlink format information of the time slot within the current channel occupation time, corresponding to the last uplink and downlink format information
  • the time slot or symbol of is determined as the end time of the current channel occupation time
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the device further includes:
  • a receiving module configured to receive BWP configuration information and / or BWP activation information from the base station, the BWP configuration information and / or BWP activation information is used to instruct the terminal to monitor the base station on the n activated BWP DCI sent.
  • a DCI transmitting apparatus which is applied to a base station, and the apparatus includes:
  • the detection module is configured to detect the activated BWP in the channel idle state among the n activated BWPs configured for the terminal, where n is an integer greater than 1;
  • a selection module configured to select the first activated BWP from the activated BWP in the channel idle state
  • the sending module is configured to send the first DCI to the terminal through the first activated BWP.
  • the first DCI carries monitoring indication information, where the monitoring indication information includes: an identifier of a second active BWP that the terminal needs to continue monitoring after receiving the first DCI.
  • the base station before the current channel occupation time ends, the base station only sends DCI to the terminal through the second activated BWP, where the current channel occupation time is the channel occupation to which the first DCI belongs time.
  • the second DCI sent by the base station to the terminal indicates the duration of the current channel occupation time, which is used by the terminal according to the start time of the current channel occupation time and the current channel occupation The length of time, to determine the end time of the current channel occupation time; or,
  • the second DCI sent by the base station to the terminal indicates an end time slot or end symbol position within the current channel occupation time, and is used by the terminal to determine the end time slot or end symbol position as the local End time of secondary channel occupation time; or,
  • the second DCI sent by the base station to the terminal indicates the uplink and downlink format information of the time slot within the current channel occupation time, and is used by the terminal to determine the time slot or symbol corresponding to the last uplink and downlink format information as the Describe the end time of the channel occupation time;
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the sending module is further configured to send BWP configuration information and / or BWP activation information to the terminal, where the BWP configuration information and / or BWP activation information is used to indicate that the terminal is in the n Activate the BWP to monitor the DCI sent by the base station.
  • a terminal includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • n is an integer greater than 1;
  • the terminal monitors the first DCI sent by the base station on the first activated BWP of the n activated BWPs, determines from the n activated BWPs that the second activated BWP needs to continue to be monitored;
  • a base station is provided, and the base station includes:
  • a memory for storing executable instructions of the processor
  • the processor is configured to:
  • n is an integer greater than 1;
  • a non-transitory computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps of the method according to the first aspect, Or implement the steps of the method according to the second aspect.
  • the base station can select the activated BWP in the channel idle state from the multiple activated BWPs to send DCI to the terminal, ensuring that the base station can effectively schedule and control the terminal.
  • the terminal first monitors the DCI on the multiple activated BWPs configured by the base station.
  • the terminal After the terminal detects the first DCI sent by the base station on the first activated BWP, the terminal determines from the multiple activated BWPs that it needs to continue to monitor The second BWP, and continue to monitor the DCI sent by the base station on the second BWP, and stop monitoring the DCI sent by the base station on other activated BWPs other than the second activated BWP, thereby avoiding the terminal from multiple activations for a long time Monitoring the DCI on the BWP results in the consumption of terminal power, which helps save terminal power.
  • Fig. 1 is a schematic diagram of a network architecture according to an exemplary embodiment
  • Fig. 2 is a flow chart showing a method for sending DCI according to an exemplary embodiment
  • Fig. 3 is a block diagram of a DCI receiving device according to an exemplary embodiment
  • Fig. 4 is a block diagram of a DCI sending device according to an exemplary embodiment
  • Fig. 5 is a schematic structural diagram of a base station according to an exemplary embodiment
  • Fig. 6 is a schematic structural diagram of a terminal according to an exemplary embodiment.
  • the network architecture and business scenarios described in the embodiments of the present disclosure are to more clearly explain the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. And the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.
  • Fig. 1 is a schematic diagram of a network architecture according to an exemplary embodiment.
  • the network architecture may include: a base station 110 and a terminal 120.
  • the base station 110 is deployed in the access network.
  • the access network in the 5G NR system can be called NG-RAN (New Generation-Radio Access Network, a new generation wireless access network).
  • the base station 110 and the terminal 120 communicate with each other through some air interface technology, for example, they can communicate with each other through cellular technology.
  • the base station 110 is a device deployed in an access network to provide a wireless communication function for the terminal 120.
  • the base station 110 may include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • gNodeB in a 5G NR system
  • gNB gNodeB
  • the name "base station” may change.
  • the above-mentioned devices that provide the terminal 120 with a wireless communication function are collectively referred to as a base station.
  • the number of terminals 120 is usually multiple, and one or more terminals 120 may be distributed in the cell managed by each base station 110.
  • the terminal 120 may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (User Equipment, UE), mobile stations ( Mobile Station (MS), terminal device (terminal) and so on.
  • UE User Equipment
  • MS Mobile Station
  • terminal device terminals.
  • the “5G NR system” in the embodiments of the present disclosure may also be referred to as a 5G system or NR system, but those skilled in the art can understand the meaning.
  • the technical solutions described in the embodiments of the present disclosure may be applicable to the 5G NR system, and may also be applicable to the subsequent evolution system of the 5G NR system.
  • Fig. 2 is a flowchart of a DCI sending method according to an exemplary embodiment, and the method may be applied in the implementation environment shown in Fig. 1.
  • the method may include the following steps:
  • step 201 the base station detects the active BWP in the channel idle state among the n active BWPs configured for the terminal, where n is an integer greater than 1.
  • the base station may configure multiple activated BWPs for the terminals in its serving cell, so as to avoid the situation that DCI cannot be sent to the terminal when the activated BWP is in a channel busy state because only one activated BWP is configured, Improve the success rate of DCI sending.
  • the base station can configure the terminal to activate the BWP by: the base station sends BWP configuration information and / or BWP activation information to the terminal, and the BWP configuration information and / or BWP activation information is used to instruct the terminal to monitor the DCI sent by the base station on n activated BWP .
  • the BWP configuration information includes the above n identifiers for activating BWP, the frequency domain resource location of the BWP, and the frequency domain location of the BWP DCI signaling.
  • the BWP logo is used to uniquely indicate the BWP, and different BWP have different logos.
  • the terminal may determine the n activated BWPs configured by the base station according to the identifier included in the BWP configuration information and / or BWP activation information.
  • the base station may perform channel detection on the n activated BWPs to determine the activated BWP in the channel idle state.
  • the channel detection method of the base station is not limited, and it may adopt the related channel detection method specified in the LBT mechanism for channel detection.
  • step 202 the base station selects the first activated BWP from the activated BWP in the channel idle state.
  • the first activated BWP is an activated BWP in the channel idle state among the n activated BWPs.
  • the base station determines this activated BWP as the first activated BWP; when the n activated BWPs are in the channel idle state
  • the base station may select one activated BWP from the multiple activated BWPs as the first activated BWP, for example, the base station may randomly select one activated BWP from the multiple activated BWPs as the first activated BWP, Or, according to the load conditions corresponding to the multiple activated BWPs, select the one with the lightest load as the first activated BWP, or for each terminal, the base station sets priority values for the multiple activated BWPs, and the base station selects the highest priority Activate the BWP as the first activated BWP.
  • step 203 the base station sends the first DCI to the terminal through the first activated BWP.
  • the base station After selecting the first activated BWP, the base station sends the first DCI to the terminal through the first activated BWP.
  • the first DCI can be used to perform resource scheduling on the PDSCH or PUSCH for the terminal.
  • the base station before the end of the current channel occupation time, the base station only sends DCI to the terminal through the second activated BWP, where the current channel occupation time is the channel occupation time to which the first DCI belongs.
  • the base station may select the first activated BWP as the second activated BWP, or may select another activated BWP other than the first activated BWP from the n activated BWPs as the second activated BWP, for example, select another one in the channel idle state Activate the BWP as the second activated BWP.
  • the manner in which the base station determines the second activated BWP may be stipulated in the protocol or determined by the base station.
  • step 204 the terminal monitors the DCI sent by the base station on the n active BWPs configured by the base station.
  • the terminal After determining the n activated BWPs configured by the base station for the terminal, the terminal monitors the DCI sent by the base station on the n activated BWPs.
  • step 205 after the terminal monitors the first DCI sent by the base station on the first activated BWP among the n activated BWPs, the terminal determines the second activated BWP that needs to continue to be monitored from the n activated BWPs.
  • the second activated BWP is one of the n activated BWPs mentioned above.
  • the second activated BWP is an activated BWP in which one of the n activated BWPs is in a channel idle state.
  • the terminal determines the first activated BWP as the second activated BWP that needs to continue to be monitored. That is, on which activated BWP the terminal first listens to its own first DCI signaling, on which activated BWP it continues to monitor the DCI signaling sent by the base station.
  • the terminal determines, according to the monitoring indication information in the first DCI, the second activated BWP that needs to continue monitoring; wherein, the monitoring indication information includes the identifier of the second activated BWP.
  • the base station may determine that the terminal needs to continue to monitor the second activated BWP after receiving the first DCI, and carry the identifier of the second activated BWP in the first DCI and send it to the terminal, so that the terminal can determine the The second activates BWP.
  • step 206 the terminal continues to monitor the DCI sent by the base station on the second activated BWP, and stops monitoring the DCI sent by the base station on other activated BWP except the second activated BWP.
  • the terminal After the terminal determines the second BWP that needs to continue to be monitored, it continues to monitor the DCI sent by the base station on the second BWP, and stops monitoring the DCI sent by the base station on other activated BWP except the second activated BWP, that is, the terminal You only need to monitor the DCI on multiple active BWPs for an initial period of time. Once you receive the DCI from one of the activated BWPs, you only need to continue to monitor the DCI on one of the activated BWPs within the channel occupation time. Until the end of the channel occupation time. In the above manner, the terminal is prevented from consuming DCI on multiple activated BWPs for a long time, which leads to terminal power consumption, which helps to save terminal power.
  • the method provided in this embodiment may further include the following steps: the terminal determines the end time of the current channel occupation time obtained by the base station through channel detection; when the end time of the current channel occupation time arrives, the terminal starts again from step 204 carried out. After the current channel occupation time ends, the terminal needs to re-monitor all activated BWPs configured for it by the base station until the next channel occupation time starts. In other words, the terminal monitors the DCI on multiple activated BWPs because the terminal does not know which activated BWP is idle. Once the terminal determines which activated BWP is idle, it can monitor only one activated BWP in the channel idle state.
  • the terminal determines the end time of the current channel occupation time in the following manner:
  • the terminal receives the second DCI sent by the base station, and the second DCI indicates the duration of the current channel occupation time, and the terminal uses the start time of the current channel occupation time and the duration of the current channel occupation time To determine the end time of the current channel occupation time.
  • the start symbol occupied by the first DCI is the start time of the current channel occupation time, or the start symbol of the other recently received signal is the start time of the current channel occupation time, for example, the above other signals may be wake-up signals ( wake signal), initial signal (initial signal, such as PSS (Primary Synchronization Signal, primary synchronization signal), SSS (Secondary Synchronization Signal, secondary synchronization signal), SSB (SS / PBCH block), etc.) or a signal similar to WiFi preamble, etc. .
  • the base station clearly indicates the duration of the current channel occupation time to the terminal through the second DCI, so that the terminal can calculate the end time of the current channel occupation time accordingly.
  • the terminal receives the second DCI sent by the base station, and the second DCI indicates the end time slot or end symbol position within the current channel occupation time, and the terminal uses the end time slot or end symbol position Determine the end time of the channel occupation time.
  • the base station clearly indicates the end time of the current channel occupation time to the terminal through the second DCI.
  • the terminal receives the second DCI sent by the base station, and the second DCI indicates the uplink and downlink format information of the time slot within the current channel occupation time, and the terminal corresponds to the time when the last uplink and downlink format information corresponds The slot or symbol is determined as the end time of the channel occupation time.
  • the base station indicates the time slot format of the current channel occupation time to the terminal through the second DCI, so that the terminal can determine the end time of the current channel occupation time based on this, so as to Make implicit instructions.
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP. That is, the base station may indicate the end time of the current channel occupation time to the terminal in the first DCI described above, or may indicate the end of the current channel occupation time to the terminal in other DCIs sent within the current channel occupation time time. It should be noted that if the second DCI is the first DCI, the step of the terminal receiving the second DCI sent by the base station is the step of the terminal listening to the first DCI sent by the base station on the first activated BWP.
  • the base station can also update the n activated BWPs configured for the terminal, for example, increase or decrease the activated BWPs configured for the terminal.
  • the base station may notify the terminal of the updated activated BWP through BWP configuration information and / or BWP activation information.
  • the terminal monitors the DCI sent by the base station on the updated activated BWP.
  • the base station configures multiple activated BWPs for the terminal, and the base station can select the activated BWP in the channel idle state from the multiple activated BWPs to send DCI to the terminal to ensure that the base station can Effective scheduling and control of the terminal.
  • the terminal first monitors the DCI on the multiple activated BWPs configured by the base station.
  • the terminal After the terminal detects the first DCI sent by the base station on the first activated BWP, the terminal determines from the multiple activated BWPs that it needs to continue to monitor The second BWP, and continue to monitor the DCI sent by the base station on the second BWP, and stop monitoring the DCI sent by the base station on other activated BWPs other than the second activated BWP, thereby avoiding the terminal from multiple activations for a long time Monitoring the DCI on the BWP results in the consumption of terminal power, which helps save terminal power.
  • the technical solutions of the present disclosure are introduced and described only from the perspective of interaction between the terminal and the base station.
  • the above-mentioned steps performed on the terminal side can be individually implemented as a DCI receiving method on the terminal side, and the above-mentioned steps performed on the base station side can be implemented separately as a DCI transmission method on the base station side.
  • Fig. 3 is a block diagram of a DCI receiving device according to an exemplary embodiment.
  • the device has the function of realizing the above-mentioned method example on the terminal side, and the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the device may be the terminal described above, or may be provided in the terminal.
  • the apparatus 300 may include: a listening module 310 and a BWP determining module 320.
  • the monitoring module 310 is configured to monitor the DCI sent by the base station on n active BWPs configured by the base station, where n is an integer greater than 1.
  • the BWP determination module 320 is configured to determine the need from the n activated BWPs after the monitoring module detects the first DCI sent by the base station on the first activated BWP of the n activated BWPs Continue to monitor the second activated BWP.
  • the monitoring module 310 is further configured to continue to monitor the DCI sent by the base station on the second activated BWP, and to stop listening to the sent by the base station on other activated BWP other than the second activated BWP DCI.
  • the base station configures multiple active BWPs for the terminal, and the base station can select the active BWPs in the channel idle state from the multiple active BWPs to send DCI to the terminal to ensure that the base station can Effective scheduling and control of the terminal.
  • the terminal first monitors the DCI on the multiple activated BWPs configured by the base station.
  • the terminal After the terminal detects the first DCI sent by the base station on the first activated BWP, the terminal determines from the multiple activated BWPs that it needs to continue to monitor The second BWP, and continue to monitor the DCI sent by the base station on the second BWP, and stop monitoring the DCI sent by the base station on other activated BWPs other than the second activated BWP, thereby avoiding the terminal from multiple activations for a long time Monitoring the DCI on the BWP results in the consumption of terminal power, which helps save terminal power.
  • the BWP determination module 320 is configured to determine the first activated BWP as the second activated BWP that needs to continue to be monitored.
  • the BWP determination module 330 is configured to determine the second activated BWP that needs to continue to be monitored according to the monitoring indication information in the first DCI; Wherein, the monitoring indication information includes the identifier of the second activated BWP.
  • the apparatus 300 further includes: a time determination module.
  • the time determination module is configured to determine the end time of the current channel occupation time obtained by the base station through channel detection, and the current channel occupation time is the channel occupation time to which the first DCI belongs.
  • the monitoring module 310 is further configured to start execution again from the step of monitoring the DCI sent by the base station on the n active BWPs configured on the base station when the end time of the current channel occupation time arrives.
  • the time determination module includes:
  • the first determining submodule is configured to receive the second DCI sent by the base station, and the second DCI indicates the duration of the current channel occupation time, according to the start time of the current channel occupation time and the The length of the current channel occupation time determines the end time of the current channel occupation time, where the start symbol occupied by the first DCI is the start time of the current channel occupation time, or other recently received
  • the start symbol of the signal is the start time of the channel occupation time.
  • the above other signals may be wakeup signals, initial signals (such as PSS, SSS, SSB, etc.) or signals similar to WiFi preamble ;or,
  • the second determining submodule is configured to receive the second DCI sent by the base station, and the second DCI indicates an end time slot or end symbol position within the current channel occupation time, and the end time slot or The end symbol position is determined as the end time of the current channel occupation time; or,
  • the third determining submodule is configured to receive the second DCI sent by the base station, and the second DCI indicates the uplink and downlink format information of the time slot within the current channel occupation time, corresponding to the last uplink and downlink format information
  • the time slot or symbol of is determined as the end time of the current channel occupation time
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the apparatus 300 further includes: a receiving module.
  • a receiving module configured to receive BWP configuration information and / or BWP activation information from the base station, the BWP configuration information and / or BWP activation information is used to instruct the terminal to monitor the base station on the n activated BWP DCI sent.
  • Fig. 4 is a block diagram of a DCI sending device according to an exemplary embodiment.
  • the device has a function to realize the above method example on the base station side, and the function may be realized by hardware, or may be realized by hardware executing corresponding software.
  • the device may be the base station described above or may be installed in the base station.
  • the device 400 may include a detection module 410, a selection module 420, and a sending module 430.
  • the detection module 410 is configured to detect the activated BWP in the channel idle state among the n activated BWPs configured for the terminal, where n is an integer greater than 1.
  • the selection module 420 is configured to select the first activated BWP from the activated BWP in the channel idle state.
  • the sending module 430 is configured to send the first DCI to the terminal through the first activated BWP.
  • the base station configures multiple activated BWPs for the terminal, and the base station can select the activated BWP in the channel idle state from the multiple activated BWPs to send DCI to the terminal to ensure that the base station can Effective scheduling and control of the terminal.
  • the terminal first monitors the DCI on the multiple activated BWPs configured by the base station.
  • the terminal After the terminal detects the first DCI sent by the base station on the first activated BWP, the terminal determines from the multiple activated BWPs that it needs to continue to monitor The second BWP, and continue to monitor the DCI sent by the base station on the second BWP, and stop monitoring the DCI sent by the base station on other activated BWPs other than the second activated BWP, thereby avoiding the terminal from multiple activations for a long time Monitoring the DCI on the BWP results in the consumption of terminal power, which helps save terminal power.
  • the first DCI carries monitoring indication information, where the monitoring indication information includes: after receiving the first DCI, the terminal needs The identifier of the second activated BWP that continues to monitor.
  • the base station before the current channel occupation time ends, the base station only sends DCI to the terminal through the second activated BWP, where the current channel occupation time is the channel occupation to which the first DCI belongs time.
  • the second DCI sent by the base station to the terminal indicates the duration of the current channel occupation time, which is used by the terminal according to the start time of the current channel occupation time and the current channel occupation
  • the length of time determines the end time of the current channel occupation time, wherein the start symbol occupied by the first DCI is the start time of the current channel occupation time, or the start of other signals received recently The symbol is the start time of the channel occupation time.
  • the above other signals may be wakeup signals, initial signals (such as PSS, SSS, SSB, etc.) or signals similar to WiFi preamble; or,
  • the second DCI sent by the base station to the terminal indicates an end time slot or end symbol position within the current channel occupation time, and is used by the terminal to determine the end time slot or end symbol position as the local End time of secondary channel occupation time; or,
  • the second DCI sent by the base station to the terminal indicates the uplink and downlink format information of the time slot within the current channel occupation time, and is used by the terminal to determine the time slot or symbol corresponding to the last uplink and downlink format information as the Describe the end time of the channel occupation time;
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the sending module 430 is further configured to send BWP configuration information and / or BWP activation information to the terminal.
  • the BWP configuration information and / or BWP activation information is used to instruct the terminal to monitor the DCI sent by the base station on the n activated BWPs.
  • the device provided in the above embodiment realizes its function, it is only exemplified by the division of the above functional modules.
  • the above functions can be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • An exemplary embodiment of the present disclosure also provides a terminal including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to:
  • n is an integer greater than 1;
  • the terminal monitors the first DCI sent by the base station on the first activated BWP of the n activated BWPs, determines from the n activated BWPs that the second activated BWP needs to continue to be monitored;
  • the processor is configured to determine the first activated BWP as the second activated BWP that needs to continue to be monitored.
  • the processor is configured to: according to the monitoring indication information in the first DCI, determine the second activated BWP that needs to continue monitoring; wherein, the monitoring indication information includes the second activated BWP Logo.
  • the processor is further configured to:
  • the step of monitoring the DCI sent by the base station on the n active BWPs configured by the base station is started again.
  • the processor is configured to:
  • the second DCI indicates the duration of the current channel occupation time, determined according to the start time of the current channel occupation time and the duration of the current channel occupation time
  • the end time of the current channel occupation time, wherein the start symbol occupied by the first DCI is the start time of the current channel occupation time, or the start symbol of other signals received recently is the current channel
  • the start time of the occupied time for example, the above other signals may be wakeup signals, initial signals (such as PSS, SSS, SSB, etc.) or signals similar to WiFi preamble; or,
  • Receive a second DCI sent by the base station and the second DCI indicates an end time slot or end symbol position within the current channel occupation time, and determine the end time slot or end symbol position as the current time End time of channel occupation time; or,
  • the second DCI indicates the uplink and downlink format information of the time slot within the current channel occupation time, and determine the time slot or symbol corresponding to the last uplink and downlink format information as the End time of the channel occupation time;
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the processor is further configured to receive BWP configuration information and / or BWP activation information from the base station, and the BWP configuration information and / or BWP activation information is used to indicate that the terminal is in the n Activate the BWP to monitor the DCI sent by the base station.
  • An exemplary embodiment of the present disclosure also provides a base station including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to:
  • n is an integer greater than 1;
  • the first DCI carries monitoring indication information, where the monitoring indication information includes: an identifier of a second active BWP that the terminal needs to continue monitoring after receiving the first DCI.
  • the base station before the current channel occupation time ends, the base station only sends DCI to the terminal through the second activated BWP, where the current channel occupation time is the channel occupation to which the first DCI belongs time.
  • the second DCI sent by the base station to the terminal indicates the duration of the current channel occupation time, which is used by the terminal according to the start time of the current channel occupation time and the current channel occupation
  • the length of time determines the end time of the current channel occupation time, wherein the start symbol occupied by the first DCI is the start time of the current channel occupation time, or the start of other signals received recently The symbol is the start time of the channel occupation time.
  • the above other signals may be wakeup signals, initial signals (such as PSS, SSS, SSB, etc.) or signals similar to WiFi preamble; or,
  • the second DCI sent by the base station to the terminal indicates an end time slot or end symbol position within the current channel occupation time, and is used by the terminal to determine the end time slot or end symbol position as the local End time of secondary channel occupation time; or,
  • the second DCI sent by the base station to the terminal indicates the uplink and downlink format information of the time slot within the current channel occupation time, and is used by the terminal to determine the time slot or symbol corresponding to the last uplink and downlink format information as the Describe the end time of the channel occupation time;
  • the second DCI includes the first DCI and / or the DCI sent by the base station on the second activated BWP.
  • the processor is further configured to send BWP configuration information and / or BWP activation information to the terminal, where the BWP configuration information and / or BWP activation information is used to indicate that the terminal is in the n Activate the BWP to monitor the DCI sent by the base station.
  • the base station and the terminal include hardware structures and / or software modules corresponding to performing each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed by hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. A person skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 5 is a schematic structural diagram of a base station according to an exemplary embodiment.
  • the base station 500 includes a transmitter / receiver 501 and a processor 502.
  • the processor 502 may also be a controller, which is represented as "controller / processor 502" in FIG.
  • the transmitter / receiver 501 is used to support sending and receiving information between the base station and the terminal in the foregoing embodiment, and to support communication between the base station and other network entities.
  • the processor 502 performs various functions for communicating with the terminal.
  • the uplink signal from the terminal is received via the antenna, demodulated by the receiver 501 (for example, demodulating a high-frequency signal into a baseband signal), and further processed by the processor 502 to recover the terminal Send to business data and signaling messages.
  • the service data and signaling messages are processed by the processor 502 and modulated by the transmitter 501 (for example, modulating the baseband signal into a high-frequency signal) to generate a downlink signal and transmitted to the terminal via the antenna .
  • the above demodulation or modulation function may also be completed by the processor 502.
  • the processor 502 is further configured to execute various steps on the base station side in the foregoing method embodiments, and / or other steps of the technical solution described in the embodiments of the present disclosure.
  • the base station 500 may further include a memory 503, and the memory 503 is used to store the program code and data of the base station 500.
  • the base station 500 may further include a communication unit 504.
  • the communication unit 504 is used to support the base station 500 to communicate with other network entities (such as network devices in the core network).
  • the communication unit 504 may be an NG-U interface for supporting communication between the base station 500 and a UPF (User Plane Function) entity; or, the communication unit 504 may also be NG-U
  • the C interface is used to support communication between the base station 500 and the AMF (Access and Mobility Management Function) access and mobility management function entity.
  • FIG. 5 only shows a simplified design of the base station 500.
  • the base station 500 may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure Inside.
  • Fig. 6 is a schematic structural diagram of a terminal according to an exemplary embodiment.
  • the terminal 600 includes a transmitter 601, a receiver 602, and a processor 603.
  • the processor 603 may also be a controller, which is represented as “controller / processor 603” in FIG. 6.
  • the terminal 600 may further include a modem processor 605, where the modem processor 605 may include an encoder 606, a modulator 607, a decoder 608, and a demodulator 609.
  • the transmitter 601 adjusts (eg, analog conversion, filtering, amplification, and up-conversion, etc.) the output samples and generates an uplink signal, which is transmitted via an antenna to the base station described in the above embodiment .
  • the antenna receives the downlink signal transmitted by the base station in the above embodiment.
  • the receiver 602 adjusts (eg, filters, amplifies, down-converts, digitizes, etc.) the signal received from the antenna and provides input samples.
  • the encoder 606 receives service data and signaling messages to be sent on the uplink, and processes the service data and signaling messages (eg, formatting, encoding, and interleaving).
  • the modulator 607 further processes (eg, symbol mapping and modulation) the encoded service data and signaling messages and provides output samples.
  • the demodulator 609 processes (eg, demodulates) the input samples and provides symbol estimates.
  • the decoder 608 processes (eg, deinterleaves and decodes) the symbol estimates and provides the decoded data and signaling messages sent to the terminal 600.
  • the encoder 606, the modulator 607, the demodulator 609, and the decoder 608 may be implemented by a synthesized modem processor 605. These units are processed according to the radio access technology adopted by the radio access network (for example, the access technology of LTE and other evolved systems). It should be noted that, when the terminal 600 does not include the modem processor 605, the above functions of the modem processor 605 may also be completed by the processor 603.
  • the processor 603 controls and manages the operation of the terminal 600, and is used to execute the processing procedure performed by the terminal 600 in the above-described embodiment of the present disclosure.
  • the processor 603 is further configured to execute various steps on the terminal side in the foregoing method embodiments, and / or other steps of the technical solution described in the embodiments of the present disclosure.
  • the terminal 600 may further include a memory 604, which is used to store program codes and data for the terminal 600.
  • FIG. 6 only shows a simplified design of the terminal 600.
  • the terminal 600 may include any number of transmitters, receivers, processors, modem processors, memories, etc., and all terminals that can implement the embodiments of the present disclosure are within the protection scope of the embodiments of the present disclosure Inside.
  • An embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor of a base station, the DCI transmission method on the base station side as described above is implemented.
  • An embodiment of the present disclosure also provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor of the terminal, the DCI receiving method on the terminal side as described above is implemented.

Abstract

本公开是关于一种DCI的接收方法、发送方法、装置及存储介质，属于通信技术领域。所述方法包括：终端在基站配置的n个激活BWP上监听基站发送的DCI，n为大于1的整数；当终端在n个激活BWP中的第一激活BWP上监听到基站发送的第一DCI之后，终端从该n个激活BWP中确定出需要继续监听的第二激活BWP；终端在第二激活BWP上继续监听基站发送的DCI，以及停止在除第二激活BWP之外的其它激活BWP上监听基站发送的DCI。本公开一方面通过基站为终端配置多个激活BWP，确保基站能够对终端进行有效调度和控制，另一方面能够避免终端长时间地在多个激活BWP上监听DCI而导致终端电量的消耗，有助于节省终端电量。

Description

DCI的接收方法、发送方法、装置及存储介质 技术领域
本公开实施例涉及通信技术领域，特别涉及一种DCI(Downlink Control Information，下行控制信息)的接收方法、发送方法、装置及存储介质。
背景技术
在5G NR(New Radio，新空口)系统中，引入了BWP(Bandwidth Part，一部分带宽)的概念，即对于一个终端而言，一个频带被划分成若干个BWP，终端在一个时段内被配置多个BWP，但同一时间只有一个激活(activate)BWP，终端仅监听该激活BWP上的DCI信令。
终端在获取到基站为其配置的激活BWP之后，可以在该激活BWP上监听基站发送的DCI。而后，终端可以根据接收到的DCI去接收基站在PDSCH(Physical Downlink Shared Channel，物理下行共享信道)上发送的下行数据，或者根据接收到的DCI通过PUSCH(Physical Uplink Shared Channel，物理上行共享信道)向基站发送上行数据。
另外，相关标准组织还提出了NR unlicensed技术，用于在免授权频谱上使用NR技术进行通信。由于在使用免授权频谱之前，要先通过LBT(Listen Before Talk，先听后说)机制进行信道检测，若检测结果为信道处于空闲状态，才能接入该免授权频谱。
基站在为终端配置一个激活BWP之后，如果基站在该激活BWP上检测到信道处于繁忙状态，则基站无法通过该激活BWP向终端发送DCI，进而导致无法对终端进行有效调度和控制，例如无法调度终端进行上下行的数据传输。
发明内容
本公开实施例提供了一种DCI的接收方法、发送方法、装置及存储介质。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种DCI的接收方法，所述方法包 括：
终端在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
当所述终端在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，所述终端从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
所述终端在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
可选地，所述终端从所述n个激活BWP中确定出需要继续监听的第二激活BWP，包括：
所述终端将所述第一激活BWP确定为需要继续监听的所述第二激活BWP。
可选地，所述终端从所述n个激活BWP中确定出需要继续监听的第二激活BWP，包括：
所述终端根据所述第一DCI中的监听指示信息，确定需要继续监听的所述第二激活BWP；其中，所述监听指示信息包括所述第二激活BWP的标识。
可选地，所述方法还包括：
所述终端确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，所述本次信道占用时间为所述第一DCI所属的信道占用时间；
当所述本次信道占用时间的结束时刻到达时，所述终端再次从所述在基站配置的n个激活BWP上监听所述基站发送的DCI的步骤开始执行。
可选地，所述终端确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，包括：
所述终端接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间的时长，所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
所述终端接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
所述终端接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，所述终端将最后一个上下行格式信息对 应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
可选地，所述方法还包括：
所述终端从所述基站接收BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
根据本公开实施例的第二方面，提供了一种DCI的发送方法，所述方法包括：
基站检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
所述基站从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
所述基站通过所述第一激活BWP向所述终端发送第一DCI。
可选地，所述第一DCI中携带监听指示信息，其中，所述监听指示信息中包括：所述终端在接收到所述第一DCI之后，需要继续监听的第二激活BWP的标识。
可选地，所述基站在本次信道占用时间结束之前，仅通过所述第二激活BWP向所述终端发送DCI，其中，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
可选地，所述基站向所述终端发送的第二DCI指示所述本次信道占用时间的时长，用于所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，用于所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，用于所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
可选地，所述方法还包括：
所述基站向所述终端发送BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
根据本公开实施例的第三方面，提供了一种DCI的接收装置，应用于终端中，所述装置包括：
监听模块，被配置为在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
BWP确定模块，被配置为当所述监听模块在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
所述监听模块，还被配置为在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
可选地，所述BWP确定模块，被配置为将所述第一激活BWP确定为需要继续监听的所述第二激活BWP。
可选地，所述BWP确定模块，被配置为根据所述第一DCI中的监听指示信息，确定需要继续监听的所述第二激活BWP；其中，所述监听指示信息包括所述第二激活BWP的标识。
可选地，所述装置还包括：
时间确定模块，被配置为确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，所述本次信道占用时间为所述第一DCI所属的信道占用时间；
所述监听模块，还被配置为当所述本次信道占用时间的结束时刻到达时，再次从所述在基站配置的n个激活BWP上监听所述基站发送的DCI的步骤开始执行。
可选地，所述时间确定模块，包括：
第一确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间的时长，根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
第二确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二 DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
第三确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
可选地，所述装置还包括：
接收模块，被配置为从所述基站接收BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
根据本公开实施例的第四方面，提供了一种DCI的发送装置，应用于基站中，所述装置包括：
检测模块，被配置为检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
选择模块，被配置为从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
发送模块，被配置为通过所述第一激活BWP向所述终端发送第一DCI。
可选地，所述第一DCI中携带监听指示信息，其中，所述监听指示信息中包括：所述终端在接收到所述第一DCI之后，需要继续监听的第二激活BWP的标识。
可选地，所述基站在本次信道占用时间结束之前，仅通过所述第二激活BWP向所述终端发送DCI，其中，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
可选地，所述基站向所述终端发送的第二DCI指示所述本次信道占用时间的时长，用于所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，用于所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内时隙 的上下行格式信息，用于所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
可选地，所述发送模块，还被配置为向所述终端发送BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
根据本公开实施例的第五方面，提供了一种终端，所述终端包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
当所述终端在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
根据本公开实施例的第六方面，提供了一种基站，所述基站包括：
处理器；
用于存储所述处理器的可执行指令的存储器；
其中，所述处理器被配置为：
检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
通过所述第一激活BWP向所述终端发送第一DCI。
根据本公开实施例的第七方面，提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如第一方面所述方法的步骤，或者实现如第二方面所述方法的步骤。
本公开实施例提供的技术方案可以包括以下有益效果：
通过基站为终端配置多个激活BWP，基站可以从该多个激活BWP中选择处于信道空闲状态的激活BWP向终端发送DCI，确保基站能够对终端进行有效调度和控制。另外，终端首先在基站为其配置的多个激活BWP上监听DCI，当终端在第一激活BWP上监听到基站发送的第一DCI之后，终端从该多个激活BWP中确定出需要继续监听的第二BWP，并在该第二BWP上继续监听基站发送的DCI，以及停止在除该第二激活BWP之外的其它激活BWP上监听基站发送的DCI，从而避免终端长时间地在多个激活BWP上监听DCI而导致终端电量的消耗，有助于节省终端电量。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种网络架构的示意图；
图2是根据一示例性实施例示出的一种DCI的发送方法的流程图；
图3是根据一示例性实施例示出的一种DCI的接收装置的框图；
图4是根据一示例性实施例示出的一种DCI的发送装置的框图；
图5是根据一示例性实施例示出的一种基站的结构示意图；
图6是根据一示例性实施例示出的一种终端的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例描述的网络架构以及业务场景是为了更加清楚地说明本公开实施例的技术方案，并不构成对本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
图1是根据一示例性实施例示出的一种网络架构的示意图。该网络架构可以包括：基站110和终端120。
基站110部署在接入网中。5G NR系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。基站110与终端120之间通过某种空口技术互相通信，例如可以通过蜂窝技术相互通信。
基站110是一种部署在接入网中用以为终端120提供无线通信功能的装置。基站110可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一名称可能会变化。为方便描述，本公开实施例中，上述为终端120提供无线通信功能的装置统称为基站。
终端120的数量通常为多个，每一个基站110所管理的小区内可以分布一个或多个终端120。终端120可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备，以及各种形式的用户设备(User Equipment，UE)，移动台(Mobile Station，MS)，终端设备(terminal device)等等。为方便描述，本公开实施例中，上面提到的设备统称为终端。
本公开实施例中的“5G NR系统”也可以称为5G系统或者NR系统，但本领域技术人员可以理解其含义。本公开实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
图2是根据一示例性实施例示出的一种DCI的发送方法的流程图，该方法可应用于图1所示的实施环境中。该方法可以包括如下几个步骤：
在步骤201中，基站检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，n为大于1的整数。
在本公开实施例中，基站可以为其服务小区内的终端配置多个激活BWP，从而避免因只配置一个激活BWP而导致在该激活BWP处于信道繁忙状态时无法向终端发送DCI的情况发生，提升DCI发送的成功率。
基站可以通过如下方式为终端配置激活BWP：基站向终端发送BWP配置信息和/或BWP激活信息，该BWP配置信息和/或BWP激活信息用于指示终端在n个激活BWP上监听基站发送的DCI。可选地，BWP配置信息中包括上 述n个激活BWP的标识，BWP的频域资源位置，BWP的DCI信令发送频域位置。BWP的标识用于唯一指示该BWP，不同的BWP具有不同的标识。终端从基站接收到BWP配置信息和/或BWP激活信息之后，可以根据该BWP配置信息和/或BWP激活信息中包括的标识，确定基站为其配置的n个激活BWP。
当基站有向终端发送DCI的需求时，基站可以在上述n个激活BWP上进行信道检测，确定出处于信道空闲状态的激活BWP。在本公开实施例中，对基站进行信道检测的方式不作限定，其可以采用LBT机制中规定的相关信道检测方式进行信道检测。
在步骤202中，基站从处于信道空闲状态的激活BWP中，选择第一激活BWP。
第一激活BWP是上述n个激活BWP中，一个处于信道空闲状态的激活BWP。可选地，当上述n个激活BWP中，处于信道空闲状态的激活BWP的数量为一个时，基站将这一个激活BWP确定为第一激活BWP；当上述n个激活BWP中，处于信道空闲状态的激活BWP的数量为多个时，基站可以从该多个激活BWP中选择一个激活BWP作为第一激活BWP，例如基站可以从该多个激活BWP中随机选择一个激活BWP作为第一激活BWP，或者根据该多个激活BWP对应的负载状况，选择负载最轻的一个激活BWP作为第一激活BWP，或者针对每个终端，基站给多个激活BWP设定优先级值，基站选择优先级最高的激活BWP作为第一激活BWP。
在步骤203中，基站通过第一激活BWP向终端发送第一DCI。
基站在选择出第一激活BWP之后，通过该第一激活BWP向终端发送第一DCI。第一DCI可用于对终端进行PDSCH或PUSCH上的资源调度。
另外，基站在本次信道占用时间结束之前，仅通过第二激活BWP向终端发送DCI，其中，本次信道占用时间为第一DCI所属的信道占用时间。基站可以选择第一激活BWP作为第二激活BWP，也可以从上述n个激活BWP中选择除第一激活BWP之外的另一个激活BWP作为第二激活BWP，如选择另一个处于信道空闲状态的激活BWP作为第二激活BWP。基站采用何种方式确定第二激活BWP，可以由协议规定，也可以由基站决定。
在步骤204中，终端在基站配置的n个激活BWP上监听基站发送的DCI。
终端在确定基站为其配置的n个激活BWP之后，在该n个激活BWP上 监听基站发送的DCI。
在步骤205中，当终端在该n个激活BWP中的第一激活BWP上监听到基站发送的第一DCI之后，终端从n个激活BWP中确定出需要继续监听的第二激活BWP。
第二激活BWP是上述n个激活BWP中的一个。可选地，第二激活BWP是上述n个激活BWP中的一个处于信道空闲状态的激活BWP。
在一种可能的实施方式中，终端将第一激活BWP确定为需要继续监听的第二激活BWP。也即，终端在哪个激活BWP上首次监听到属于自己的第一DCI信令，后续就在哪个激活BWP上继续监听基站发送的DCI信令。
在另一种可能的实施方式中，终端根据第一DCI中的监听指示信息，确定需要继续监听的第二激活BWP；其中，监听指示信息包括第二激活BWP的标识。基站可以确定终端在接收到第一DCI之后，需要继续监听的第二激活BWP，并将该第二激活BWP的标识携带在第一DCI中发送给终端，以便终端据此确定出需要继续监听的第二激活BWP。
在步骤206中，终端在第二激活BWP上继续监听基站发送的DCI，以及停止在除第二激活BWP之外的其它激活BWP上监听基站发送的DCI。
终端确定出需要继续监听的第二BWP之后，在该第二BWP上继续监听基站发送的DCI，以及停止在除该第二激活BWP之外的其它激活BWP上监听基站发送的DCI，也即终端只需要在初始一段时间监听多个激活BWP上的DCI，一旦接收到来自其中一个激活BWP上的DCI之后，在本次信道占用时间之内，就只需要继续监听其中一个激活BWP上的DCI，直到本次信道占用时间结束。通过上述方式，避免了终端长时间地在多个激活BWP上监听DCI而导致终端电量的消耗，有助于节省终端电量。
另外，本实施例提供的方法还可以包括如下步骤：终端确定基站经过信道检测获得的本次信道占用时间的结束时刻；当本次信道占用时间的结束时刻到达时，终端再次从上述步骤204开始执行。在本次信道占用时间结束之后，终端需要重新监听基站为其配置的所有激活BWP，待下一次信道占用时间开始。也就是说，终端监听多个激活BWP上的DCI是因为终端不知道哪个激活BWP空闲，一旦终端确定哪个激活BWP空闲之后，就可以只监听其中一个处于信道空闲状态的激活BWP了。
可选地，终端采用下述方式确定本次信道占用时间的结束时刻：
在一种可能的实施方式中，终端接收基站发送的第二DCI，且该第二DCI指示本次信道占用时间的时长，终端根据本次信道占用时间的开始时刻和本次信道占用时间的时长，确定本次信道占用时间的结束时刻。其中，第一DCI占用的起始符号为本次信道占用时间的开始时刻，或者最近接收到的其它信号的起始符号为本次信道占用时间的开始时刻，比如上述其它信号可以是唤醒信号(wake up signal)、初始信号(initial signal，如PSS(Primary Synchronization Signal，主同步信号)，SSS(Secondary Synchronization Signal，辅同步信号)，SSB(SS/PBCH block)等)或类似WiFi preamble的信号等。在这种方式中，基站通过第二DCI向终端明确指示本次信道占用时间的时长，以便终端据此推算出本次信道占用时间的结束时刻。
在另一种可能的实施方式中，终端接收基站发送的第二DCI，且该第二DCI指示本次信道占用时间内的结束时隙或结束符号位置，终端将该结束时隙或结束符号位置确定为本次信道占用时间的结束时刻。在这种方式中，基站通过第二DCI向终端明确指示本次信道占用时间的结束时刻。
在又一种可能的实施方式中，终端接收基站发送的第二DCI，且该第二DCI指示本次信道占用时间内时隙的上下行格式信息，终端将最后一个上下行格式信息对应的时隙或符号确定为本次信道占用时间的结束时刻。在这种方式中，基站通过第二DCI向终端指示本次信道占用时间内的时隙格式，以便终端据此确定出本次信道占用时间的结束时刻，实现对本次信道占用时间的结束时刻进行隐式指示。
在上述任意一种实施方式中，第二DCI包括第一DCI和/或基站在第二激活BWP上发送的DCI。也即，基站可以在上文介绍的第一DCI中向终端指示本次信道占用时间的结束时刻，也可以在本次信道占用时间内发送的其它DCI中向终端指示本次信道占用时间的结束时刻。需要说明的一点是，如果第二DCI是第一DCI，则终端接收基站发送的第二DCI的步骤，即为终端在第一激活BWP上监听到基站发送的第一DCI的步骤。
需要补充说明的一点是，基站还可以对其为终端配置的n个激活BWP进行更新，例如增减为终端配置的激活BWP。基站可以通过BWP配置信息和/或BWP激活信息将更新后的激活BWP告知给终端。终端在根据BWP配置信息和/或BWP激活信息确定基站为其配置的更新后的激活BWP之后，在上述更新后的激活BWP上监听基站发送的DCI。
综上所述，本公开实施例提供的技术方案中，通过基站为终端配置多个激活BWP，基站可以从该多个激活BWP中选择处于信道空闲状态的激活BWP向终端发送DCI，确保基站能够对终端进行有效调度和控制。另外，终端首先在基站为其配置的多个激活BWP上监听DCI，当终端在第一激活BWP上监听到基站发送的第一DCI之后，终端从该多个激活BWP中确定出需要继续监听的第二BWP，并在该第二BWP上继续监听基站发送的DCI，以及停止在除该第二激活BWP之外的其它激活BWP上监听基站发送的DCI，从而避免终端长时间地在多个激活BWP上监听DCI而导致终端电量的消耗，有助于节省终端电量。
在上述方法实施例中，仅从终端和基站交互的角度，对本公开技术方案进行了介绍说明。上述有关终端侧执行的步骤可以单独实现成为终端侧的DCI的接收方法，上述有关基站侧执行的步骤可以单独实现成为基站侧的DCI的发送方法。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图3是根据一示例性实施例示出的一种DCI的接收装置的框图。该装置具有实现上述终端侧的方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的终端，也可以设置在终端中。该装置300可以包括：监听模块310和BWP确定模块320。
监听模块310，被配置为在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数。
BWP确定模块320，被配置为当所述监听模块在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，从所述n个激活BWP中确定出需要继续监听的第二激活BWP。
所述监听模块310，还被配置为在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
综上所述，本公开实施例提供的技术方案中，通过基站为终端配置多个激活BWP，基站可以从该多个激活BWP中选择处于信道空闲状态的激活BWP 向终端发送DCI，确保基站能够对终端进行有效调度和控制。另外，终端首先在基站为其配置的多个激活BWP上监听DCI，当终端在第一激活BWP上监听到基站发送的第一DCI之后，终端从该多个激活BWP中确定出需要继续监听的第二BWP，并在该第二BWP上继续监听基站发送的DCI，以及停止在除该第二激活BWP之外的其它激活BWP上监听基站发送的DCI，从而避免终端长时间地在多个激活BWP上监听DCI而导致终端电量的消耗，有助于节省终端电量。
在基于图3实施例提供的一个可选实施例中，所述BWP确定模块320，被配置为将所述第一激活BWP确定为需要继续监听的所述第二激活BWP。
在基于图3实施例提供的另一个可选实施例中，所述BWP确定模块330，被配置为根据所述第一DCI中的监听指示信息，确定需要继续监听的所述第二激活BWP；其中，所述监听指示信息包括所述第二激活BWP的标识。
在基于图3实施例或者上述任一可选实施例提供的另一个可选实施例中，所述装置300还包括：时间确定模块。
时间确定模块，被配置为确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
所述监听模块310，还被配置为当所述本次信道占用时间的结束时刻到达时，再次从所述在基站配置的n个激活BWP上监听所述基站发送的DCI的步骤开始执行。
可选地，所述时间确定模块，包括：
第一确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间的时长，根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻，其中，所述第一DCI占用的起始符号为所述本次信道占用时间的开始时刻，或者最近接收到的其它信号的起始符号为本次信道占用时间的开始时刻，比如上述其它信号可以是唤醒信号(wake up signal)、初始信号(initial signal，如PSS，SSS，SSB等)或类似WiFi preamble的信号等；或者，
第二确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
第三确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
在基于图3实施例或者上述任一可选实施例提供的另一个可选实施例中，所述装置300还包括：接收模块。
接收模块，被配置为从所述基站接收BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
图4是根据一示例性实施例示出的一种DCI的发送装置的框图。该装置具有实现上述基站侧的方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的基站，也可以设置在基站中。该装置400可以包括：检测模块410、选择模块420和发送模块430。
检测模块410，被配置为检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数。
选择模块420，被配置为从所述处于信道空闲状态的激活BWP中，选择第一激活BWP。
发送模块430，被配置为通过所述第一激活BWP向所述终端发送第一DCI。
综上所述，本公开实施例提供的技术方案中，通过基站为终端配置多个激活BWP，基站可以从该多个激活BWP中选择处于信道空闲状态的激活BWP向终端发送DCI，确保基站能够对终端进行有效调度和控制。另外，终端首先在基站为其配置的多个激活BWP上监听DCI，当终端在第一激活BWP上监听到基站发送的第一DCI之后，终端从该多个激活BWP中确定出需要继续监听的第二BWP，并在该第二BWP上继续监听基站发送的DCI，以及停止在除该第二激活BWP之外的其它激活BWP上监听基站发送的DCI，从而避免终端长时间地在多个激活BWP上监听DCI而导致终端电量的消耗，有助于节省终端电量。
在基于图4实施例提供的一个可选实施例中，所述第一DCI中携带监听指 示信息，其中，所述监听指示信息中包括：所述终端在接收到所述第一DCI之后，需要继续监听的第二激活BWP的标识。
可选地，所述基站在本次信道占用时间结束之前，仅通过所述第二激活BWP向所述终端发送DCI，其中，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
可选地，所述基站向所述终端发送的第二DCI指示所述本次信道占用时间的时长，用于所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻，其中，所述第一DCI占用的起始符号为所述本次信道占用时间的开始时刻，或者最近接收到的其它信号的起始符号为本次信道占用时间的开始时刻，比如上述其它信号可以是唤醒信号(wake up signal)、初始信号(initial signal，如PSS，SSS，SSB等)或类似WiFi preamble的信号等；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，用于所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，用于所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
在基于图4实施例或者上述任一可选实施例提供的一个可选实施例中，所述发送模块430，还被配置为向所述终端发送BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
需要说明的一点是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容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。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开一示例性实施例还提供了一种终端，所述终端包括：处理器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为：
在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
当所述终端在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
可选地，所述处理器被配置为：将所述第一激活BWP确定为需要继续监听的所述第二激活BWP。
可选地，所述处理器被配置为：根据所述第一DCI中的监听指示信息，确定需要继续监听的所述第二激活BWP；其中，所述监听指示信息包括所述第二激活BWP的标识。
可选地，所述处理器还被配置为：
确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，所述本次信道占用时间为所述第一DCI所属的信道占用时间；
当所述本次信道占用时间的结束时刻到达时，再次从所述在基站配置的n个激活BWP上监听所述基站发送的DCI的步骤开始执行。
可选地，所述处理器被配置为：
接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间的时长，根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻，其中，所述第一DCI占用的起始符号为所述本次信道占用时间的开始时刻，或者最近接收到的其它信号的起始符号为本次信道占用时间的开始时刻，比如上述其它信号可以是唤醒信号(wake up signal)、初始信号(initial signal，如PSS，SSS，SSB等)或类似WiFi preamble的信号等；或者，
接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
可选地，所述处理器还被配置为：从所述基站接收BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
本公开一示例性实施例还提供了一种基站，所述基站包括：处理器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为：
检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
通过所述第一激活BWP向所述终端发送第一DCI。
可选地，所述第一DCI中携带监听指示信息，其中，所述监听指示信息中包括：所述终端在接收到所述第一DCI之后，需要继续监听的第二激活BWP的标识。
可选地，所述基站在本次信道占用时间结束之前，仅通过所述第二激活BWP向所述终端发送DCI，其中，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
可选地，所述基站向所述终端发送的第二DCI指示所述本次信道占用时间的时长，用于所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻，其中，所述第一DCI占用的起始符号为所述本次信道占用时间的开始时刻，或者最近接收到的其它信号的起始符号为本次信道占用时间的开始时刻，比如上述其它信号可以是唤醒信号(wake up signal)、初始信号(initial signal，如PSS，SSS，SSB等)或类似WiFi preamble的信号等；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，用于所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，用于所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
可选地，所述处理器还被配置为：向所述终端发送BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
上述主要从基站和终端交互的角度，对本公开实施例提供的方案进行了介绍。可以理解的是，基站、终端为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开中所公开的实施例描述的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图5是根据一示例性实施例示出的一种基站的结构示意图。
基站500包括发射器/接收器501和处理器502。其中，处理器502也可以为控制器，图5中表示为“控制器/处理器502”。所述发射器/接收器501用于支持基站与上述实施例中的所述终端之间收发信息，以及支持所述基站与其它网络实体之间进行通信。所述处理器502执行各种用于与终端通信的功能。在上行链路，来自所述终端的上行链路信号经由天线接收，由接收器501进行解调(例如将高频信号解调为基带信号)，并进一步由处理器502进行处理来恢复终端所发送到业务数据和信令消息。在下行链路上，业务数据和信令消息由处理器502进行处理，并由发射器501进行调制(例如将基带信号调制为高频信号)来产生下行链路信号，并经由天线发射给终端。需要说明的是，上述解调或调制的功能也可以由处理器502完成。例如，处理器502还用于执行上述方法实施例中基站侧的各个步骤，和/或本公开实施例所描述的技术方案的其它步骤。
进一步的，基站500还可以包括存储器503，存储器503用于存储基站500 的程序代码和数据。此外，基站500还可以包括通信单元504。通信单元504用于支持基站500与其它网络实体(例如核心网中的网络设备等)进行通信。例如，在5G NR系统中，该通信单元504可以是NG-U接口，用于支持基站500与UPF(User Plane Function，用户平面功能)实体进行通信；或者，该通信单元504也可以是NG-C接口，用于支持基站500与AMF(Access and Mobility Management Function，接入和移动性管理功能)实体进行通信。
可以理解的是，图5仅仅示出了基站500的简化设计。在实际应用中，基站500可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本公开实施例的基站都在本公开实施例的保护范围之内。
图6是根据一示例性实施例示出的一种终端的结构示意图。
所述终端600包括发射器601，接收器602和处理器603。其中，处理器603也可以为控制器，图6中表示为“控制器/处理器603”。可选的，所述终端600还可以包括调制解调处理器605，其中，调制解调处理器605可以包括编码器606、调制器607、解码器608和解调器609。
在一个示例中，发射器601调节(例如，模拟转换、滤波、放大和上变频等)该输出采样并生成上行链路信号，该上行链路信号经由天线发射给上述实施例中所述的基站。在下行链路上，天线接收上述实施例中基站发射的下行链路信号。接收器602调节(例如，滤波、放大、下变频以及数字化等)从天线接收的信号并提供输入采样。在调制解调处理器605中，编码器606接收要在上行链路上发送的业务数据和信令消息，并对业务数据和信令消息进行处理(例如，格式化、编码和交织)。调制器607进一步处理(例如，符号映射和调制)编码后的业务数据和信令消息并提供输出采样。解调器609处理(例如，解调)该输入采样并提供符号估计。解码器608处理(例如，解交织和解码)该符号估计并提供发送给终端600的已解码的数据和信令消息。编码器606、调制器607、解调器609和解码器608可以由合成的调制解调处理器605来实现。这些单元根据无线接入网采用的无线接入技术(例如，LTE及其他演进系统的接入技术)来进行处理。需要说明的是，当终端600不包括调制解调处理器605时，调制解调处理器605的上述功能也可以由处理器603完成。
处理器603对终端600的动作进行控制管理，用于执行上述本公开实施例中由终端600进行的处理过程。例如，处理器603还用于执行上述方法实施例 中的终端侧的各个步骤，和/或本公开实施例所描述的技术方案的其它步骤。
进一步的，终端600还可以包括存储器604，存储器604用于存储用于终端600的程序代码和数据。
可以理解的是，图6仅仅示出了终端600的简化设计。在实际应用中，终端600可以包含任意数量的发射器，接收器，处理器，调制解调处理器，存储器等，而所有可以实现本公开实施例的终端都在本公开实施例的保护范围之内。
本公开实施例还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，所述计算机程序被基站的处理器执行时实现如上文介绍的基站侧的DCI的发送方法。
本公开实施例还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，所述计算机程序被终端的处理器执行时实现如上文介绍的终端侧的DCI的接收方法。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (25)

  1. 一种下行控制信息DCI的接收方法，其特征在于，所述方法包括：
    终端在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
    当所述终端在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，所述终端从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
    所述终端在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
  2. 根据权利要求1所述的方法，其特征在于，所述终端从所述n个激活BWP中确定出需要继续监听的第二激活BWP，包括：
    所述终端将所述第一激活BWP确定为需要继续监听的所述第二激活BWP。
  3. 根据权利要求1所述的方法，其特征在于，所述终端从所述n个激活BWP中确定出需要继续监听的第二激活BWP，包括：
    所述终端根据所述第一DCI中的监听指示信息，确定需要继续监听的所述第二激活BWP；其中，所述监听指示信息包括所述第二激活BWP的标识。
  4. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，所述本次信道占用时间为所述第一DCI所属的信道占用时间；
    当所述本次信道占用时间的结束时刻到达时，所述终端再次从所述在基站配置的n个激活BWP上监听所述基站发送的DCI的步骤开始执行。
  5. 根据权利要求4所述的方法，其特征在于，所述终端确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，包括：
    所述终端接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间的时长，所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
    所述终端接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
    所述终端接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
    其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述方法还包括：
    所述终端从所述基站接收BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
  7. 一种下行控制信息DCI的发送方法，其特征在于，所述方法包括：
    基站检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
    所述基站从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
    所述基站通过所述第一激活BWP向所述终端发送第一DCI。
  8. 根据权利要求7所述的方法，其特征在于，所述第一DCI中携带监听指示信息，其中，所述监听指示信息中包括：所述终端在接收到所述第一DCI之后，需要继续监听的第二激活BWP的标识。
  9. 根据权利要求8所述的方法，其特征在于，所述基站在本次信道占用时间结束之前，仅通过所述第二激活BWP向所述终端发送DCI，其中，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
  10. 根据权利要求9所述的方法，其特征在于，
    所述基站向所述终端发送的第二DCI指示所述本次信道占用时间的时长，用于所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间 的时长，确定所述本次信道占用时间的结束时刻；或者，
    所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，用于所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
    所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，用于所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
    其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
  11. 根据权利要求7至10任一项所述的方法，其特征在于，所述方法还包括：
    所述基站向所述终端发送BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
  12. 一种下行控制信息DCI的接收装置，其特征在于，应用于终端中，所述装置包括：
    监听模块，被配置为在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
    BWP确定模块，被配置为当所述监听模块在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
    所述监听模块，还被配置为在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
  13. 根据权利要求12所述的装置，其特征在于，
    所述BWP确定模块，被配置为将所述第一激活BWP确定为需要继续监听的所述第二激活BWP。
  14. 根据权利要求12所述的装置，其特征在于，
    所述BWP确定模块，被配置为根据所述第一DCI中的监听指示信息，确定需要继续监听的所述第二激活BWP；其中，所述监听指示信息包括所述第二激活BWP的标识。
  15. 根据权利要求12所述的装置，其特征在于，所述装置还包括：
    时间确定模块，被配置为确定所述基站经过信道检测获得的本次信道占用时间的结束时刻，所述本次信道占用时间为所述第一DCI所属的信道占用时间；
    所述监听模块，还被配置为当所述本次信道占用时间的结束时刻到达时，再次从所述在基站配置的n个激活BWP上监听所述基站发送的DCI的步骤开始执行。
  16. 根据权利要求15所述的装置，其特征在于，所述时间确定模块，包括：
    第一确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间的时长，根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
    第二确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
    第三确定子模块，被配置为接收所述基站发送的第二DCI，且所述第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
    其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
  17. 根据权利要求12至16任一项所述的装置，其特征在于，所述装置还包括：
    接收模块，被配置为从所述基站接收BWP配置信息和/或BWP激活信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
  18. 一种下行控制信息DCI的发送装置，其特征在于，应用于基站中，所述装置包括：
    检测模块，被配置为检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
    选择模块，被配置为从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
    发送模块，被配置为通过所述第一激活BWP向所述终端发送第一DCI。
  19. 根据权利要求18所述的装置，其特征在于，所述第一DCI中携带监听指示信息，其中，所述监听指示信息中包括：所述终端在接收到所述第一DCI之后，需要继续监听的第二激活BWP的标识。
  20. 根据权利要求19所述的装置，其特征在于，所述基站在本次信道占用时间结束之前，仅通过所述第二激活BWP向所述终端发送DCI，其中，所述本次信道占用时间为所述第一DCI所属的信道占用时间。
  21. 根据权利要求20所述的装置，其特征在于，
    所述基站向所述终端发送的第二DCI指示所述本次信道占用时间的时长，用于所述终端根据所述本次信道占用时间的开始时刻和所述本次信道占用时间的时长，确定所述本次信道占用时间的结束时刻；或者，
    所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内的结束时隙或结束符号位置，用于所述终端将所述结束时隙或结束符号位置确定为所述本次信道占用时间的结束时刻；或者，
    所述基站向所述终端发送的第二DCI指示所述本次信道占用时间内时隙的上下行格式信息，用于所述终端将最后一个上下行格式信息对应的时隙或符号确定为所述本次信道占用时间的结束时刻；
    其中，所述第二DCI包括所述第一DCI和/或所述基站在所述第二激活BWP上发送的DCI。
  22. 根据权利要求18至21任一项所述的装置，其特征在于，
    所述发送模块，还被配置为向所述终端发送BWP配置信息和/或BWP激活 信息，所述BWP配置信息和/或BWP激活信息用于指示所述终端在所述n个激活BWP上监听所述基站发送的DCI。
  23. 一种终端，其特征在于，所述终端包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    在基站配置的n个激活BWP上监听所述基站发送的DCI，所述n为大于1的整数；
    当所述终端在所述n个激活BWP中的第一激活BWP上监听到所述基站发送的第一DCI之后，从所述n个激活BWP中确定出需要继续监听的第二激活BWP；
    在所述第二激活BWP上继续监听所述基站发送的DCI，以及停止在除所述第二激活BWP之外的其它激活BWP上监听所述基站发送的DCI。
  24. 一种基站，其特征在于，所述基站包括：
    处理器；
    用于存储所述处理器的可执行指令的存储器；
    其中，所述处理器被配置为：
    检测为终端配置的n个激活BWP中，处于信道空闲状态的激活BWP，所述n为大于1的整数；
    从所述处于信道空闲状态的激活BWP中，选择第一激活BWP；
    通过所述第一激活BWP向所述终端发送第一DCI。
  25. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至6任一项所述方法的步骤，或者实现如权利要求7至11任一项所述方法的步骤。
PCT/CN2018/111980 2018-10-25 2018-10-25 Dci的接收方法、发送方法、装置及存储介质 WO2020082313A1 (zh)

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