CN116438851A

CN116438851A - Control channel detection method, electronic equipment and storage medium

Info

Publication number: CN116438851A
Application number: CN202080106964.8A
Authority: CN
Inventors: 左志松; 徐伟杰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2023-07-14
Also published as: WO2022126482A1

Abstract

The application discloses a control channel detection method, comprising the following steps: the method comprises the steps that a terminal device receives first Downlink Control Information (DCI) used for determining a monitoring occasion for skipping control channel detection; the terminal device detects a control channel at part of the monitoring occasions of the skipped control channel detection. The application also discloses another control channel detection method, electronic equipment and a storage medium.

Description

Control channel detection method, electronic equipment and storage medium

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a control channel detection method, an electronic device, and a storage medium.

Background

In the related art, how to perform effective channel monitoring while saving power consumption of a terminal device when the terminal device performs channel monitoring is a constantly pursued goal.

Disclosure of Invention

The embodiment of the application provides a control channel detection method, electronic equipment and a storage medium, which can determine the time when paging messages are received by terminal equipment.

In a first aspect, an embodiment of the present application provides a control channel detection method, including: the terminal device receives first downlink control information (Downlink Control Information, DCI) for determining a listening occasion to skip control channel detection; the terminal device detects a control channel at part of the monitoring occasions of the skipped control channel detection.

In a second aspect, an embodiment of the present application provides a control channel detection method, including: the network equipment sends first DCI to the terminal equipment; the first DCI is used for the terminal device to determine a listening occasion of skip control channel detection, and a part of the listening occasions of the skip control channel detection are used for the terminal device to detect a control channel.

In a third aspect, an embodiment of the present application provides a terminal device, including: a receiving unit configured to receive a first DCI for determining a listening occasion to skip control channel detection; and a processing unit configured to detect a control channel at part of the listening occasions of the skip control channel detection.

In a fourth aspect, embodiments of the present application provide a network device, including: a transmitting unit configured to transmit first DCI to a terminal device; the first DCI is used for the terminal device to determine a listening occasion of skip control channel detection, and a part of the listening occasions of the skip control channel detection are used for the terminal device to detect a control channel.

In a fifth aspect, an embodiment of the present application provides a terminal device, including a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute steps of a control channel detection method executed by the terminal device when the computer program is run.

In a sixth aspect, an embodiment of the present application provides a network device, including a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute steps of a control channel detection method executed by the network device when running the computer program.

In a seventh aspect, embodiments of the present application provide a chip, including: and a processor for calling and running the computer program from the memory, so that the device installed with the chip executes the control channel detection method executed by the terminal device.

In an eighth aspect, embodiments of the present application provide a chip, including: and the processor is used for calling and running the computer program from the memory, so that the device provided with the chip executes the control channel detection method executed by the network device.

In a ninth aspect, an embodiment of the present application provides a storage medium storing an executable program, where the executable program when executed by a processor implements the control channel detection method executed by the terminal device.

In a tenth aspect, embodiments of the present application provide a storage medium storing an executable program, where the executable program when executed by a processor implements the control channel detection method executed by the network device.

In an eleventh aspect, embodiments of the present application provide a computer program product including computer program instructions for causing a computer to execute the control channel detection method performed by the terminal device.

In a twelfth aspect, embodiments of the present application provide a computer program product including computer program instructions for causing a computer to perform the control channel detection method performed by the network device.

In a thirteenth aspect, embodiments of the present application provide a computer program that causes a computer to execute the control channel detection method executed by the terminal device described above.

In a fourteenth aspect, embodiments of the present application provide a computer program that causes a computer to execute the control channel detection method executed by the network device described above.

The control channel detection method, the electronic device and the storage medium provided by the embodiment of the application comprise the following steps: the method comprises the steps that terminal equipment receives first Downlink Control Information (DCI) which is used for determining monitoring time for skipping control channel detection; the terminal device detects a control channel at part of the monitoring occasions of the skipped control channel detection. In this way, by taking part of the monitoring occasions of the physical downlink control channel (Physical downlink control channel, PDCCH) triggering as a window for retransmitting the data packet, PDCCH detection of the retransmitted data packet by the terminal device can be reduced; under the condition that the terminal equipment does not successfully receive the data packet scheduled when the network equipment sends the PDCCH skip indication, retransmission of the data packet which is not successfully received can be completed relatively quickly, and effective channel monitoring is carried out while energy conservation is realized.

Drawings

Fig. 1 is a schematic diagram of a discontinuous reception cycle according to an embodiment of the present application;

fig. 2 is a schematic diagram of a terminal device in the present application skipping PDCCH detection;

fig. 3 is a schematic diagram of a composition structure of a communication system according to an embodiment of the present application;

fig. 4 is a schematic diagram of an alternative processing flow of the control channel detection method provided in the embodiment of the present application;

FIG. 5 is a diagram illustrating a first time domain offset according to an embodiment of the present application;

FIG. 6 is a diagram illustrating a second time domain offset according to an embodiment of the present application;

FIG. 7 is a diagram illustrating a third time domain offset according to an embodiment of the present application;

fig. 8 is a schematic diagram of a channel detection method according to an embodiment of the present application;

fig. 9 is a schematic diagram of an alternative processing flow of a control channel detection method according to an embodiment of the present application;

fig. 10 is a schematic diagram of an alternative composition structure of a terminal device according to an embodiment of the present application;

fig. 11 is a schematic diagram of an alternative composition structure of a network device according to an embodiment of the present application;

fig. 12 is a schematic diagram of a hardware composition structure of an electronic device according to an embodiment of the present application.

Detailed Description

For a more complete understanding of the nature and the technical content of the embodiments of the present application, reference should be made to the following detailed description of embodiments of the present application in connection with the accompanying drawings, which are provided for purposes of illustration only and are not intended to limit the embodiments of the present application.

Before explaining the embodiments of the present application, the related contents will be briefly explained.

In a New Radio (NR) system, a network device may configure a discontinuous reception (Discontinuous Reception, DRX) function for a terminal device, so that the terminal device discontinuously detects (or listens to) a PDCCH in a time domain, thereby achieving the purpose of saving power of the terminal device. When no data is transmitted, the terminal equipment can stop receiving the PDCCH, namely, the terminal equipment can reduce power consumption by stopping PDCCH blind detection, so that the battery service time of the terminal equipment is prolonged.

In the existing long term evolution (Long Term Evolution, LTE) system, a DRX cycle (cycle) may be configured for a terminal device in a radio resource control CONNECTED state (rrc_connected). The DRX cycle is schematically shown in FIG. 1, and the DRX cycle comprises a DRX Active Time (Active Time) and a DRX Inactive Time (Inactive Time), wherein in the DRX Active Time, the terminal equipment monitors and receives the PDCCH, and in DRX Inactive Time (which can also be called as a dormant period), the terminal equipment does not receive the PDCCH to reduce power consumption.

For the DRX mechanism, the time is divided into successive DRX cycles, the starting time of each DRX cycle is the DRX ON state, during which the terminal device detects the PDCCH according to configured listening (Monitoring Occasion, MO). When the terminal device detects the PDCCH, a corresponding deactivation Timer (Inactivity Timer) is also started and refreshed. If the DRX ON is not ended or the Inactivity Timer is not ended, the terminal equipment is in DRX Active Time. Terminal devices in DRX Active Time need to detect PDCCH.

The NR system inherits the configuration mode aiming at the DRX in the LTE system, the terminal equipment monitors all the configured PDCCH search spaces during the DRX active time, and stops monitoring all the configured PDCCH search spaces during the DRX off period. During DRX active time, the network device may instruct the terminal device to skip or ignore PDCCH detection (PDCCH skip) for a period of time; the PDCCH skip indication may be carried in DCI, for example, the number of listening occasions of PDCCH skip is indicated by using 2-bit information in DCI. The terminal device skips the schematic diagram of PDCCH detection, as shown in fig. 2, after receiving the PDCCH skip indication, the terminal device stops PDCCH monitoring (i.e. PDCCH skip) in the indicated monitoring opportunity, and resumes PDCCH monitoring outside the indicated monitoring opportunity.

The applicant found that the terminal device may have a problem of PDCCH loss during the process of skipping PDCCH detection, as shown in fig. 2, if the network device sends data in a slot, but the terminal device may not correctly receive the data in the slot. For incorrectly accepted data, the network device needs to perform data retransmission; the data retransmission in the PDCCH skip process inevitably consumes network resources, which contradicts with the PDCCH skip implemented for energy saving. The control channel detection method provided by the embodiment of the invention can optimize the PDCCH skip process, and can enable the terminal equipment to execute effective channel monitoring while saving the power consumption of the terminal equipment.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), LTE system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, long term evolution advanced (advanced long term evolution, LTE-a) system, NR system, evolution system of NR system, LTE-based access to unlicensed spectrum on unlicensed band, NR-based access to unlicensed spectrum on unlicensed band, NR-U system, universal mobile communication system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, wireless local area network (wireless local area networks, WLAN), wireless fidelity (wireless fidelity, wiFi), next generation communication system or other communication system, etc.

The system architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

The network device involved in the embodiments of the present application may be a common base station (such as a NodeB or eNB or gNB), a new radio controller (new radio controller, NR controller), a centralized network element (centralized unit), a new radio base station, a remote radio module, a micro base station, a relay, a distributed network element (distributed unit), a receiving point (transmission reception point, TRP), a transmission point (transmission point, TP), or any other device. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device. For convenience of description, in all embodiments of the present application, the above-mentioned apparatus for providing a wireless communication function for a terminal device is collectively referred to as a network device.

In the embodiment of the present application, the terminal device may be any terminal, for example, the terminal device may be a user device for machine type communication. That is, the terminal device may also be referred to as a user equipment UE, a Mobile Station (MS), a mobile terminal (mobile terminal), a terminal (terminal), etc., which may communicate with one or more core networks via a radio access network (radio access network, RAN), e.g., the terminal device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., e.g., the terminal device may also be a portable, pocket, hand-held, computer-built-in or car-mounted mobile device, which exchanges voice and/or data with the radio access network. The embodiments of the present application are not specifically limited.

Alternatively, the network devices and terminal devices may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted; the device can be deployed on the water surface; but also on aerial planes, balloons and satellites. The embodiment of the application does not limit the application scene of the network equipment and the terminal equipment.

Optionally, communication between the network device and the terminal device and between the terminal device and the terminal device may be performed through a licensed spectrum (licensed spectrum), communication may be performed through an unlicensed spectrum (unlicensed spectrum), or communication may be performed through both the licensed spectrum and the unlicensed spectrum. Communication between the network device and the terminal device and between the terminal device and the terminal device may be performed through a frequency spectrum of 7 gigahertz (GHz) or less, may be performed through a frequency spectrum of 7GHz or more, and may be performed using a frequency spectrum of 7GHz or less and a frequency spectrum of 7GHz or more simultaneously. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, as the communication technology advances, the mobile communication system will support not only conventional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (machine to machine, M2M) communication, machine type communication (machine type communication, MTC), inter-vehicle (vehicle to vehicle, V2V) communication, and the like, to which the embodiments of the present application can also be applied.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 3. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. "terminal device" as used herein includes, but is not limited to, a connection via a wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), a digital subscriber line (Digital Subscriber Line, DSL), a digital cable, a direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, direct terminal (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or 5G network may also be referred to as an NR system or NR network.

Fig. 3 illustrates one network device and two terminal devices, alternatively, the communication system 100 may include a plurality of network devices and each network device may include other numbers of terminal devices within a coverage area, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 3 as an example, the communication device may include the network device 110 and the terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be the specific devices described above, which are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

An optional process flow of the control channel detection method provided in the embodiment of the present application, as shown in fig. 4, includes the following steps:

in step S201, the terminal device receives a first DCI, where the first DCI is used to determine a listening occasion for skipping control channel detection.

In some embodiments, the control channel may be a PDCCH, and the control channel may also be a scheduling-free PDSCH.

In some embodiments, the first DCI may be transmitted by the network device to the terminal device. Taking the example that the control channel is PDCCH, the X bits in the first DCI are used to directly indicate the monitoring opportunity of the PDCCH skip, i.e. the terminal device does not detect PDCCH in the monitoring opportunity indicated by the first DCI. The first DCI can also be used for indicating the detection parameter of a control channel, and the terminal equipment can determine the monitoring time of the PDCCH skip according to the detection parameter of the control channel; wherein the detection parameters of the control channel may include at least one of: the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel. Here, the detection period of the control channel may be a time interval between two adjacent control channel detections; the format of the DCI carried by the control channel can be format-1 or format-0; the type of the control channel may be a control channel specific to the terminal device or a control channel common to a plurality of terminal devices. The detection parameters of the control channel indicated by the first DCI may be different from the detection parameters received by the terminal device last time, that is, the detection parameters of the control channel are adjusted; in the case of adjustment of the detection parameters of the control channel, if the detection period of the control channel or the search space set of the control channel changes, the terminal device will inevitably skip PDCCH detection at some listening occasions when performing PDCCH detection.

In step S202, the terminal device detects the control channel at part of the listening occasions of the skipped control channel detection.

In some embodiments, the terminal device determines a part of the monitoring occasions detected by the skip control channel according to the time domain parameter carried by the first DCI, and detects the control channel at the part of the monitoring occasions.

In some embodiments, the first DCI may be carried in a PDCCH, which may be used to schedule at least one of a physical downlink shared channel (Physical downlink shared channel, PDSCH), PDCCH, and physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). Scheduling different channels for a first DCI, where the time domain parameter carried by the first DCI may be at least one of:

a first time domain offset between the first DCI and a PDSCH scheduled by the first DCI, a second time domain offset between the PDSCH scheduled by the first DCI and a hybrid automatic repeat request feedback (Hybrid Automatic Repeat reQuest ACK, HARQ-ACK) corresponding to the PDSCH, and a third time domain offset between the first DCI and a PUSCH scheduled by the first DCI. Wherein the first time domain offset may be denoted by k0, the second time domain offset may be denoted by k1, and the third time domain offset may be denoted by k 2. As shown in fig. 5, a first DCI is transmitted in Slot1, PDSCH scheduled by the first DCI is transmitted in Slot3, and the first time domain offset k0 is 2. As shown in fig. 6, a second time domain offset is schematically shown, a first DCI is transmitted at Slot1, where the first DCI is used to schedule PDSCH transmission at Slot3, HARQ-ACK feedback corresponding to the PDSCH is performed by a terminal device Slot8, and the second time domain offset k1 is 5. As shown in fig. 7, a first DCI is transmitted at Slot4, where the first DCI is used to schedule PUSCH transmission at Slot8, and the third time-domain offset k2 is 4. Wherein the first time domain offset, the second time domain offset, and the third time domain offset may be time units of time slots, or time units of frames, subframes, symbols, or the like; the first time domain offset, the second time domain offset, and the third time domain offset may be indicated by the first DCI.

In some embodiments, the partial listening occasion may be: and taking the first offset of the time domain position of the first DCI as N monitoring opportunities of the initial time domain position, wherein N is a positive integer.

In some alternative embodiments, the first offset includes: the sum of the first time domain offset, the second time domain offset and the adjustment offset. The first time domain offset is denoted by k0, the second time domain offset is denoted by k1, the adjustment offset is denoted by m, and m is a preset integer value, the first offset is equal to k0+k1+m. If the terminal device receives the first DCI at slot (N), the terminal device detects a control channel with N listening occasions with slot (n+k0+k1+m) as a starting time domain position.

In other alternative embodiments, the first offset includes a sum of a third time domain offset and an adjustment offset. The third time domain offset is denoted by k2, the adjustment offset is denoted by m, and m is a preset integer value, the first offset is equal to k2+m. If the terminal device receives the first DCI at slot (N), the terminal device detects a control channel with N monitoring opportunities taking slot (n+k2+m) as a starting time domain position.

In some embodiments, the search space type of the control channel detected by the terminal device at the partial listening occasion is the same as the search space type of the control channel carrying the first DCI. For example, if the search space Type of the PDCCH carrying the first DCI is a Type-0 search space, the search space Type of the control channel detected by the terminal device at the partial listening occasion is also a Type-0 search space; if the search space Type of the PDCCH carrying the first DCI is a Type-1 search space, the search space Type of the control channel detected by the terminal device at the partial listening occasion is also a Type-1 search space.

In some embodiments, the format of DCI carried by the control channel detected by the terminal device at the partial listening occasion is the same as the format of the first DCI. For example, if the format of the first DCI is format0, the format of the DCI carried by the control channel detected by the terminal device at the partial listening occasion is also format0.

In some embodiments, the channel type scheduled by the control channel detected by the terminal device at the partial listening occasion is the same as the channel type scheduled by the control channel carrying the first DCI. For example, if the channel type scheduled by the control channel carrying the first DCI is PUSCH, the channel type scheduled by the control channel detected by the terminal device at the partial listening occasion is PUSCH. If the channel type scheduled by the control channel carrying the first DCI is PDSCH, the channel type scheduled by the control channel detected by the terminal equipment at the partial monitoring time is also PDSCH.

In some embodiments, if the network device needs to retransmit the data packet, the network device sends a second DCI to the terminal device, where the second DCI is used to schedule the retransmission of the data packet. In a specific implementation, if the terminal device detects the second DCI, the terminal device can determine a time domain position of the retransmitted data packet according to the second DCI, and the terminal device will receive the retransmitted data packet at the time domain position determined according to the second DCI. In this scenario, the terminal device may stop detecting the control channel at the partial listening occasion. If the first DCI is used to indicate the detection parameter of the control channel, that is, the detection parameter of the control channel is changed, the terminal device may not only stop detecting the control channel at the partial listening occasion, but also detect the control channel according to the changed detection parameter indicated by the first DCI. In a specific implementation, if the terminal device does not detect the second DCI, the terminal device detects the control channel at the partial listening occasion, so as to wait for the terminal device to retransmit the data packet.

As shown in fig. 8, a network device transmits complete data in slot (x), however, because a terminal device executes PDCCH skip in slot (x) according to DCI sent by the network device, the terminal device does not successfully receive a data packet transmitted in slot (x); the network device needs to retransmit the packet. In this scenario, the terminal device detects the control channel for receiving the retransmission packet at a part of the listening time in the listening occasion of PDCCH skip. If the terminal device successfully receives the retransmission data packet in the partial listening occasion, the terminal device may stop detecting the control channel in the partial listening occasion, and detect the control channel in slot (y) according to DCI sent by the network device.

According to the control channel detection method provided by the embodiment of the application, part of the monitoring occasions of the PDCCH triggering indicated by the network equipment are used as windows for retransmitting the data packet, so that PDCCH detection of the retransmitted data packet by the terminal equipment can be reduced; under the condition that the terminal equipment does not successfully receive the data packet scheduled when the network equipment sends the PDCCH skip indication, retransmission of the data packet which is not successfully received can be completed quickly. In addition, because the retransmission window of the data packet is positioned in the monitoring time of the PDCCH skip, the system time delay caused by retransmitting the data packet after the PDCCH skip can be avoided. The control channel detection method provided by the embodiment of the application expands the functions of the PDCCH, so that the PDCCH not only has the functions of scheduling the PUSCH and indicating the PDCCH skip, but also has the function of indicating a time window for retransmitting the data packet; for data packet retransmission, no extra physical layer energy-saving signal is needed, no extra signaling is introduced, and radio resources are greatly saved. Since part of the monitoring occasions of the terminal equipment in the monitoring occasions of the PDCCH monitoring are related to the time domain parameters k0, k1 and k2 carried in the PDCCH, the proportion of bits used for energy-saving indication (detecting the control channel at part of the monitoring occasions) in indication information carried in the PDCCH is small, and system resources are saved. By adopting the control channel detection method provided by the embodiment of the application, the terminal equipment energy conservation can be supported dynamically according to the adjustment offset values indicated by k0, k1, k2 and the network equipment, and the self-adaptive time scale of the terminal equipment energy conservation can be reduced from tens of microseconds to microseconds.

An alternative process flow of the control channel detection method provided in the embodiment of the present application, as shown in fig. 9, includes the following steps:

in step S301, the network device sends a first DCI to the terminal device, where the first DCI is used for the terminal device to determine a listening occasion of skip control channel detection, and a part of the listening occasions of skip control channel detection are used for the terminal device to detect a control channel.

In some embodiments, taking the example that the control channel is PDCCH, the X bits in the first DCI are used to directly indicate the listening occasion of the PDCCH skip, i.e. the terminal device does not detect PDCCH during the listening occasion indicated by the first DCI. The first DCI can also be used for indicating the detection parameter of a control channel, and the terminal equipment can determine the monitoring time of the PDCCH skip according to the detection parameter of the control channel; wherein the detection parameters of the control channel may include at least one of: the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel. Here, the detection period of the control channel may be a time interval between two adjacent control channel detections; the format of the DCI carried by the control channel can be format-1 or format-0; the type of the control channel may be a control channel specific to the terminal device or a control channel common to a plurality of terminal devices. The detection parameters of the control channel indicated by the first DCI may be different from the detection parameters received by the terminal device last time, that is, the detection parameters of the control channel are adjusted; in the case of adjustment of the detection parameters of the control channel, if the detection period of the control channel or the search space set of the control channel changes, the terminal device will inevitably skip PDCCH detection at some listening occasions when performing PDCCH detection.

In some embodiments, if the network device needs to retransmit the data packet, the network device sends a second DCI to the terminal device, where the second DCI is used to schedule the retransmission of the data packet. The network device may retransmit the data packet at the partial listening occasion.

In order to implement the control channel detection method provided in the embodiment of the present application, the embodiment of the present application further provides a terminal device, where an optional composition structure of the terminal device 400 is shown in fig. 10, and includes:

a receiving unit 401 configured to receive a first DCI, where the first DCI is used to determine a listening occasion for skipping control channel detection;

a processing unit 402 is configured to detect a control channel at part of the listening occasions of said skipped control channel detection.

In some embodiments, the processing unit 402 is configured to detect a control channel at a part of the listening occasions of the skip control channel detection according to a time domain parameter carried by the first DCI.

In some embodiments, the time domain parameters include at least one of:

a first time domain offset between the first DCI and a PDSCH scheduled by the first DCI;

a second time domain offset between a PDSCH scheduled by the first DCI and an HARQ-ACK corresponding to the PDSCH;

a third time domain offset between the first DCI and a PUSCH scheduled by the first DCI.

In some embodiments, the first DCI is to directly indicate a listening occasion of the skip control channel detection;

Or, the first DCI is configured to indicate a detection parameter of the control channel, where the detection parameter of the control channel is used to determine a listening occasion of the skipped control channel detection.

In some embodiments, the detection parameters of the control channel include at least one of:

the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel.

In some embodiments, the partial listening occasion comprises:

and taking the first offset of the time domain position of the first DCI as N monitoring opportunities of the initial time domain position, wherein N is a positive integer.

In some embodiments, the first offset is a sum of a first time domain offset, a second time domain offset, and an adjustment offset.

In some embodiments, the first offset is a sum of a third time domain offset and an adjustment offset.

In some embodiments, the first time domain offset is a time domain offset between the first DCI and a PDSCH scheduled by the first DCI;

the second time domain offset is a time domain offset between the first DCI and a PUSCH scheduled by the first DCI;

the adjustment offset is a preset value.

In some embodiments, the search space type of the control channel detected at the partial listening occasion is the same as the search space type of the control channel carrying the first DCI.

In some embodiments, the format of the DCI carried by the control channel detected at the partial listening occasion is the same as the format of the first DCI.

In some embodiments, the control channel detected at the partial listening occasion is of the same channel type as the control channel carrying the first DCI.

In some embodiments, if the terminal device does not detect the second DCI for scheduling a data packet retransmission, the processing unit is configured to detect the control channel at the partial listening occasion.

In some embodiments, if the terminal device detects a second DCI for scheduling a data packet retransmission, the processing unit is configured to stop detecting the control channel and/or the processing unit is configured to detect a control channel based on the first DCI.

It should be noted that, in the embodiment of the present application, the function of the receiving unit 401 may be implemented by a receiver or a transceiver, and the function of the processing unit 402 may be implemented by a processor.

In order to implement the control channel detection method provided in the embodiment of the present application, the embodiment of the present application further provides a network device, where an optional composition structure of the network device 500 is shown in fig. 11, and includes:

a transmitting unit 501 configured to transmit the first DCI to the terminal device; the first DCI is used for the terminal device to determine a listening occasion of skip control channel detection, and a part of the listening occasions of the skip control channel detection are used for the terminal device to detect a control channel.

In some embodiments, the partial listening occasion comprises:

the adjustment offset is a preset value.

In some embodiments, the search space type of the control channel detected by the terminal device at the partial listening occasion is the same as the search space type of the control channel carrying the first DCI.

In some embodiments, the format of DCI carried by the control channel detected by the terminal device at the partial listening occasion is the same as the format of the first DCI.

In some embodiments, the channel type scheduled by the control channel detected by the terminal device at the partial listening occasion is the same as the channel type scheduled by the control channel carrying the first DCI.

It should be noted that, in the embodiment of the present application, the function of the transmitting unit 501 may be implemented by a transmitter or a transceiver. The network device provided by the embodiment of the application may further include a receiving unit, configured to receive HARQ-ACK corresponding to PDSCH sent by the terminal device; the function of the receiving unit may be implemented by a receiver or transceiver.

The embodiment of the application also provides a terminal device, which comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the control channel detection method executed by the terminal device when the computer program runs.

The embodiment of the application also provides a network device, which comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the control channel detection method executed by the network device when the computer program runs.

The embodiment of the application also provides a chip, which comprises: and a processor for calling and running the computer program from the memory, so that the device installed with the chip executes the control channel detection method executed by the terminal device.

The embodiment of the application also provides a chip, which comprises: and the processor is used for calling and running the computer program from the memory, so that the device provided with the chip executes the control channel detection method executed by the network device.

The embodiment of the application also provides a storage medium, which stores an executable program, and when the executable program is executed by a processor, the control channel detection method executed by the terminal equipment is realized.

The embodiment of the application also provides a storage medium, which stores an executable program, and when the executable program is executed by a processor, the method for detecting the control channel executed by the network equipment is realized.

The embodiment of the application also provides a computer program product, which comprises computer program instructions, wherein the computer program instructions enable a computer to execute the control channel detection method executed by the terminal equipment.

The embodiment of the application also provides a computer program product, which comprises computer program instructions, wherein the computer program instructions enable a computer to execute the control channel detection method executed by the network device.

The embodiment of the application also provides a computer program, which enables a computer to execute the control channel detection method executed by the terminal equipment.

The embodiment of the application also provides a computer program, which enables a computer to execute the control channel detection method executed by the network equipment.

Fig. 12 is a schematic diagram of a hardware composition structure of an electronic device (a terminal device or a network device) according to an embodiment of the present application, and an electronic device 700 includes: at least one processor 701, memory 702, and at least one network interface 704. The various components in the electronic device 700 are coupled together by a bus system 705. It is appreciated that the bus system 705 is used to enable connected communications between these components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 705 in fig. 12.

It is to be appreciated that the memory 702 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Wherein the nonvolatile Memory may be ROM, programmable read-Only Memory (PROM, programmable Read-Only Memory), erasable programmable read-Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable read-Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk read-Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory 702 described in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 702 in the embodiments of the present application is used to store various types of data to support the operation of the electronic device 700. Examples of such data include: any computer program for operating on the electronic device 700, such as application 7022. A program implementing the method of the embodiment of the present application may be contained in the application program 7022.

The method disclosed in the embodiments of the present application may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 701 or by instructions in the form of software. The processor 701 may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium in a memory 702. The processor 701 reads information in the memory 702 and, in combination with its hardware, performs the steps of the method as described above.

In an exemplary embodiment, the electronic device 700 can be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSP, programmable logic device (PLD, programmable Logic Device), complex programmable logic device (CPLD, complex Programmable Logic Device), FPGA, general purpose processor, controller, MCU, MPU, or other electronic components for performing the aforementioned methods.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

The foregoing description of the preferred embodiments of the present application is not intended to limit the scope of the present application, but is intended to cover any modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims

A method of control channel detection, the method comprising:

the method comprises the steps that terminal equipment receives first Downlink Control Information (DCI) which is used for determining monitoring time for skipping control channel detection;

the terminal device detects a control channel at part of the monitoring occasions of the skipped control channel detection.
The method of claim 1, wherein the detecting of the control channel by the terminal device is part of a listening occasion among the listening occasions of the skip control channel detection comprises:

and the terminal equipment detects a control channel according to the time domain parameter carried by the first DCI in part of the monitoring occasions detected by the skip control channel.
The method of claim 2, wherein the time domain parameters comprise at least one of:

a first time domain offset between the first DCI and a physical downlink shared channel PDSCH scheduled by the first DCI;

A second time domain offset between a PDSCH scheduled by the first DCI and a hybrid automatic repeat request feedback HARQ-ACK corresponding to the PDSCH;

and a third time domain offset between the first DCI and a Physical Uplink Shared Channel (PUSCH) scheduled by the first DCI.
A method according to any one of claim 1 to 3, wherein,

the first DCI is configured to directly indicate a listening occasion of the skip control channel detection;

or, the first DCI is configured to indicate a detection parameter of the control channel, where the detection parameter of the control channel is used to determine a listening occasion of the skipped control channel detection.
The method of claim 4, wherein the detection parameters of the control channel comprise at least one of:

the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel.
The method of any of claims 1 to 5, wherein the partial listening occasion comprises:

and taking the first offset of the time domain position of the first DCI as N monitoring opportunities of the initial time domain position, wherein N is a positive integer.
The method of claim 6, wherein the first offset is a sum of a first time domain offset, a second time domain offset, and an adjustment offset.
The method of claim 6, wherein the first offset is a sum of a third time domain offset and an adjustment offset.
The method according to claim 7 or 8, wherein,

the first time domain offset is a time domain offset between the first DCI and a PDSCH scheduled by the first DCI;

the second time domain offset is a time domain offset between the first DCI and a PUSCH scheduled by the first DCI;

the adjustment offset is a preset value.
The method of any of claims 1 to 9, wherein a search space type of a control channel detected at the partial listening occasion is the same as a search space type of a control channel carrying the first DCI.
The method of any of claims 1 to 10, wherein a format of DCI carried by a control channel detected at the partial listening occasion is the same as a format of the first DCI.
The method of any of claims 1 to 11, wherein a channel type scheduled by a control channel detected at the partial listening occasion is the same as a channel type scheduled by a control channel carrying the first DCI.
The method according to any of claims 1 to 12, wherein the terminal device detects the control channel at the partial listening occasion if the terminal device does not detect a second DCI for scheduling a data packet retransmission.
The method according to any of claims 1 to 13, wherein the terminal device stops detecting the control channel if the terminal device detects a second DCI for scheduling a data packet retransmission and/or the terminal device detects a control channel based on the first DCI.
A method of control channel detection, the method comprising:

the network equipment sends first downlink control information DCI to the terminal equipment;

the first DCI is used for the terminal device to determine a listening occasion of skip control channel detection, and a part of the listening occasions of the skip control channel detection are used for the terminal device to detect a control channel.
The method of claim 15, wherein the first DCI is to directly indicate a listening occasion of the skip control channel detection;

or, the first DCI is configured to indicate a detection parameter of the control channel, where the detection parameter of the control channel is used to determine a listening occasion of the skipped control channel detection.
The method of claim 16, wherein the detection parameters of the control channel comprise at least one of:

the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel.
The method of any of claims 15 to 17, wherein the partial listening occasion comprises:

and taking the first offset of the time domain position of the first DCI as N monitoring opportunities of the initial time domain position, wherein N is a positive integer.
The method of claim 18, wherein the first offset is a sum of a first time domain offset, a second time domain offset, and an adjustment offset.
The method of claim 18, wherein the first offset is a sum of a third time domain offset and an adjustment offset.
The method according to claim 19 or 20, wherein,

the first time domain offset is a time domain offset between the first DCI and a physical downlink shared channel PDSCH scheduled by the first DCI;

the second time domain offset is a time domain offset between the first DCI and a physical uplink shared channel PUSCH scheduled by the first DCI;

the adjustment offset is a preset value.
The method of any of claims 15 to 21, wherein a search space type of a control channel detected by the terminal device at the partial listening occasion is the same as a search space type of a control channel carrying the first DCI.
The method of any of claims 15 to 22, wherein a format of DCI carried by a control channel detected by the terminal device at the partial listening occasion is the same as a format of the first DCI.
The method of any of claims 15 to 23, wherein the control channel scheduled by the terminal device detected at the partial listening occasion is of a same channel type as the control channel scheduled by the control channel carrying the first DCI.
A terminal device, the terminal device comprising:

a receiving unit configured to receive first downlink control information DCI, the first DCI being used to determine a listening occasion for skipping control channel detection;

and a processing unit configured to detect a control channel at part of the listening occasions of the skip control channel detection.
The terminal device of claim 25, wherein the processing unit is configured to detect a control channel at part of the listening occasions of the skip control channel detection according to a time domain parameter carried by the first DCI.
The terminal device of claim 26, wherein the time domain parameter comprises at least one of:

a first time domain offset between the first DCI and a physical downlink shared channel PDSCH scheduled by the first DCI;

a second time domain offset between a PDSCH scheduled by the first DCI and a hybrid automatic repeat request feedback HARQ-ACK corresponding to the PDSCH;

And a third time domain offset between the first DCI and a Physical Uplink Shared Channel (PUSCH) scheduled by the first DCI.
The terminal device according to any of claims 25 to 27, wherein,

the first DCI is configured to directly indicate a listening occasion of the skip control channel detection;

or, the first DCI is configured to indicate a detection parameter of the control channel, where the detection parameter of the control channel is used to determine a listening occasion of the skipped control channel detection.
The terminal device of claim 26, wherein the detection parameters of the control channel include at least one of:

the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel.
The terminal device of any of claims 25 to 29, wherein the partial listening occasion comprises:

and taking the first offset of the time domain position of the first DCI as N monitoring opportunities of the initial time domain position, wherein N is a positive integer.
The terminal device of claim 30, wherein the first offset is a sum of a first time domain offset, a second time domain offset, and an adjustment offset.
The terminal device of claim 30, wherein the first offset is a sum of a third time domain offset and an adjustment offset.
The terminal device according to claim 31 or 32, wherein,

the first time domain offset is a time domain offset between the first DCI and a PDSCH scheduled by the first DCI;

the second time domain offset is a time domain offset between the first DCI and a PUSCH scheduled by the first DCI;

the adjustment offset is a preset value.
The terminal device of any of claims 25 to 33, wherein a search space type of a control channel detected at the partial listening occasion is the same as a search space type of a control channel carrying the first DCI.
The terminal device of any of claims 25 to 34, wherein a format of DCI carried by a control channel detected at the partial listening occasion is the same as a format of the first DCI.
The terminal device of any of claims 25 to 35, wherein the control channel detected at the partial listening occasion is scheduled of the same channel type as the control channel carrying the first DCI.
The terminal device of any of claims 25 to 36, wherein if the terminal device does not detect the second DCI for scheduling a data packet retransmission, the processing unit is configured to detect the control channel at the partial listening occasion.
The terminal device of any of claims 25-37, wherein if the terminal device detects a second DCI for scheduling a data packet retransmission, the processing unit is configured to stop detecting the control channel and/or the processing unit is configured to detect a control channel based on the first DCI.
A network device, the network device comprising:

a transmitting unit configured to transmit first downlink control information DCI to a terminal device;

the first DCI is used for the terminal device to determine a listening occasion of skip control channel detection, and a part of the listening occasions of the skip control channel detection are used for the terminal device to detect a control channel.
The network device of claim 39, wherein the first DCI is to directly indicate a listening occasion for the skip control channel detection;

or, the first DCI is configured to indicate a detection parameter of the control channel, where the detection parameter of the control channel is used to determine a listening occasion of the skipped control channel detection.
The network device of claim 40, wherein the detection parameters of the control channel comprise at least one of:

the detection period of the control channel, the search space set of the control channel, the format of DCI carried by the control channel and the type of the control channel.
The network device of any of claims 39 to 41, wherein the partial listening occasion comprises:

and taking the first offset of the time domain position of the first DCI as N monitoring opportunities of the initial time domain position, wherein N is a positive integer.
The network device of claim 42, wherein the first offset is a sum of a first time domain offset, a second time domain offset, and an adjustment offset.
A network device as defined in claim 42, wherein the first offset is a sum of a third time domain offset and an adjustment offset.
The network device of claim 43 or 44, wherein the first time domain offset is a time domain offset between the first DCI and a physical downlink shared channel, PDSCH, scheduled by the first DCI;

the second time domain offset is a time domain offset between the first DCI and a physical uplink shared channel PUSCH scheduled by the first DCI;

the adjustment offset is a preset value.
The network device of any of claims 39-45, wherein a search space type of a control channel detected by the terminal device at the partial listening occasion is the same as a search space type of a control channel carrying the first DCI.
The network device of any of claims 39 to 46, wherein a format of DCI carried by a control channel detected by the terminal device at the partial listening occasion is the same as a format of the first DCI.
The network device of any of claims 39-47, wherein a channel type scheduled by a control channel detected by the terminal device at the partial listening occasion is the same as a channel type scheduled by a control channel carrying the first DCI.
A terminal device comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to perform the steps of the control channel detection method of any of claims 1 to 14 when the computer program is run.
A network device comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor being adapted to perform the steps of the control channel detection method of any of claims 15 to 24 when the computer program is run.
A storage medium storing an executable program which, when executed by a processor, implements the control channel detection method of any one of claims 1 to 14.
A storage medium storing an executable program which, when executed by a processor, implements the control channel detection method of any one of claims 15 to 24.
A computer program product comprising computer program instructions for causing a computer to perform the control channel detection method according to any one of claims 1 to 14.
A computer program product comprising computer program instructions for causing a computer to perform the control channel detection method of any one of claims 15 to 24.
A computer program for causing a computer to perform the control channel detection method according to any one of claims 1 to 14.
A computer program for causing a computer to perform the control channel detection method according to any one of claims 15 to 24.
A chip, comprising: a processor for calling and running a computer program from a memory, so that a device on which the chip is mounted performs the control channel detection method according to any one of claims 1 to 14.
A chip, comprising: a processor for calling and running a computer program from a memory, so that a device on which the chip is mounted performs the control channel detection method according to any one of claims 15 to 24.