WO2020011180A1 - 信道检测指示方法、终端及网络设备 - Google Patents
信道检测指示方法、终端及网络设备 Download PDFInfo
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- WO2020011180A1 WO2020011180A1 PCT/CN2019/095364 CN2019095364W WO2020011180A1 WO 2020011180 A1 WO2020011180 A1 WO 2020011180A1 CN 2019095364 W CN2019095364 W CN 2019095364W WO 2020011180 A1 WO2020011180 A1 WO 2020011180A1
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present disclosure relates to the field of communication technologies, and in particular, to a channel detection indication method, a terminal, and a network device.
- the monitoring period, offset, and duration of a physical downlink control channel are all signaled by network equipment through radio resource control (RRC). Order notification to the terminal.
- RRC radio resource control
- the PDCCH detection period configured by the network device may be unreasonable. For example, if the service packet arrival period is 20 ms, but the PDCCH detection period configured by the network device is 2 ms, the terminal may frequently blindly detect the PDCCH, but no authorization information is detected. (Including uplink grants and downlink grants). In this way, the terminal performs blind PDCCH detection based on the unreasonable configuration, which is not conducive to the terminal's power saving.
- Embodiments of the present disclosure provide a channel detection indication method, a terminal, and a network device, so as to solve a power consumption problem caused by a terminal due to improper detection of a PDCCH.
- an embodiment of the present disclosure provides a channel detection indication method, which is applied to a terminal side and includes:
- scheduling downlink control information DCI is received from the first PDCCH, it is determined whether to detect the second PDCCH according to the scheduling DCI.
- an embodiment of the present disclosure further provides a terminal, including:
- a first detection module configured to detect a first physical downlink control channel PDCCH
- the second detection module is configured to determine whether to detect the second PDCCH according to the scheduled DCI if the scheduled downlink control information DCI is received from the first PDCCH.
- an embodiment of the present disclosure provides a terminal.
- the terminal includes a processor, a memory, and a computer program stored on the memory and running on the processor.
- the computer program is executed by the processor, the method for implementing the foregoing channel detection instruction method step.
- an embodiment of the present disclosure provides a channel detection indication method, which is applied to a network device side and includes:
- an embodiment of the present disclosure provides a network device, including:
- the first sending module is configured to send a first physical downlink control channel PDCCH.
- the first PDCCH carries scheduling downlink control information DCI, and the scheduling DCI is used to indicate whether the terminal detects the second PDCCH.
- an embodiment of the present disclosure further provides a network device.
- the network device includes a processor, a memory, and a computer program stored on the memory and running on the processor.
- the processor executes the computer program, the foregoing channel detection instruction is implemented. Method steps.
- an embodiment of the present disclosure provides a computer-readable storage medium.
- a computer program is stored on the computer-readable storage medium.
- the steps of the foregoing channel detection instruction method are implemented.
- the embodiments of the present disclosure use the above technical solution to dynamically indicate whether to detect a PDCCH by scheduling DCI, so that the terminal can detect the PDCCH more flexibly, avoid unnecessary PDCCH detection, and help the terminal save power.
- FIG. 1 shows a block diagram of a mobile communication system applicable to an embodiment of the present disclosure
- FIG. 2 is a schematic flowchart of a channel detection indication method applied to a terminal side according to an embodiment of the present disclosure
- FIG. 3 is a schematic structural diagram of a module of a terminal according to an embodiment of the present disclosure.
- FIG. 4 shows a block diagram of a terminal provided by an embodiment of the present disclosure
- FIG. 5 is a schematic flowchart of a channel detection indication method applied to a network device side according to an embodiment of the present disclosure
- FIG. 6 is a schematic structural diagram of a module of a network device according to an embodiment of the present disclosure.
- FIG. 7 shows a block diagram of a network device according to an embodiment of the present disclosure.
- LTE Long Time Evolution
- LTE-A LTE-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single Carrier Frequency Single-carrier
- SC-FDMA Single Carrier Frequency Single-carrier
- NR New Radio
- FIG. 1 is a block diagram of a wireless communication system applicable to an embodiment of the present disclosure.
- the wireless communication system includes a terminal 11 and a network device 12.
- the terminal 11 may also be called a terminal device or a user terminal (User), and the terminal 11 may be a mobile phone, a tablet computer (laptop computer), a laptop computer (laptop computer), or a personal digital assistant (Personal Digital Assistant).
- PDA mobile Internet device
- MID mobile Internet Device
- Wearable device Wearable Device
- terminal equipment such as vehicle-mounted equipment
- the network device 12 may be a base station or a core network, wherein the base station may be a base station of 5G and later versions (for example, gNB, 5G, NR, NB, etc.), or a base station in other communication systems (for example, eNB, Wireless Local Area Network (Wireless Local) Area Network (WLAN) access point, or other access points, etc.), where the base station may be referred to as Node B, evolved Node B, access point, Base Transceiver Station (BTS), radio base station, Radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolution Node B (eNB), Home Node B, Home Evolution Node B, WLAN access Point, wireless fidelity (WiFi) node, or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiments of the present disclosure It only takes the base station in the NR system as an example, but it does not
- the base station may communicate with the terminal 11 under the control of a base station controller.
- the base station controller may be part of the core network or some base stations.
- Some base stations can communicate control information or user data with the core network through the backhaul.
- some of these base stations may communicate with each other directly or indirectly through a backhaul link, which may be a wired or wireless communication link.
- Wireless communication systems can support operation on multiple carriers (waveform signals of different frequencies).
- Multi-carrier transmitters can transmit modulated signals on these multiple carriers simultaneously.
- each communication link may be a multi-carrier signal modulated according to various radio technologies.
- Each modulated signal can be sent on a different carrier and can carry control information (eg, reference signals, control channels, etc.), overhead information, data, and so on.
- the base station may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of an access point may be divided into sectors that constitute only a part of the coverage area.
- the wireless communication system may include different types of base stations (for example, a macro base station, a pico base station, or a pico base station). Base stations can also utilize different radio technologies, such as cellular or WLAN radio access technologies. Base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including the coverage areas of the same or different types of base stations, the coverage areas using the same or different radio technologies, or the coverage areas belonging to the same or different access networks) may overlap.
- the communication link in the wireless communication system may include an uplink for carrying uplink (Uplink, UL) transmission (for example, from the terminal 11 to the network device 12), or a bearer for downlink (Downlink, DL) Downlink for transmission (for example, from network device 12 to terminal 11).
- Uplink, UL uplink
- Downlink, DL downlink
- UL transmissions may also be referred to as reverse link transmissions
- DL transmissions may also be referred to as forward link transmissions.
- an embodiment of the present disclosure provides a channel detection indication method, which is applied to a terminal side.
- the method includes the following steps:
- Step 21 Detect the first physical downlink control channel PDCCH.
- the monitoring parameters of the first PDCCH are configured by a network device, and the monitoring parameters include at least one of a monitoring period, a monitoring offset value, and a monitoring duration.
- Step 22 If scheduling downlink control information DCI is received from the first PDCCH, determine whether to detect the second PDCCH according to the scheduling DCI.
- the scheduling downlink control information can indicate whether the terminal detects the second PDCCH. In this way, by scheduling the DCI to dynamically indicate the terminal's detection behavior, the terminal can avoid unnecessary PDCCH detection, thereby saving power consumption of the terminal. .
- the determination manner of the first PDCCH detection behavior may be the same as or different from that of the second PDCCH detection behavior.
- the detection behavior of the first PDCCH may be determined according to the scheduling DCI in the previous PDCCH, or The detection behavior of the first PDCCH is determined according to target signaling (such as RRC signaling).
- the method further includes: if no scheduling DCI is received from the first PDCCH, detecting the second PDCCH according to the received target signaling; wherein the target signaling is different from the scheduling DCI, the target The signaling is used to indicate detection parameters related to the second PDCCH.
- the detection parameters related to the second PDCCH include at least one of a detection period, a detection offset value (offset), and a detection duration (duration).
- the target signaling mentioned here includes, but is not limited to, a Medium Access Control (MAC) layer control unit (Control Element, CE), RRC signaling, and the like. Taking RRC signaling as an example, the terminal monitors the second PDCCH according to the monitoring parameters of the search space (search space) configured by the RRC signaling.
- MAC Medium Access Control
- CE Medium Access Control
- RRC signaling the terminal monitors the second PDCCH according to the monitoring parameters of the search space (search space) configured by the RRC signaling.
- the second PDCCH in the embodiment of the present disclosure corresponds to at least one DCI format, and / or the second PDCCH corresponds to at least one search space.
- the DCI format includes, but is not limited to, the formats shown in Table 1 below:
- DCI formats 0_0, 0_1, 1_0, and 1_1 are scheduled DCIs, and the other are unscheduled DCIs.
- the system supports but is not limited to the following different types of PDCCH search spaces (Search spaces):
- Type0-PDCCH common search space. This type of search space is defined for the PDCCH corresponding to the remaining minimum system information (RMSI). Wireless network temporary identification (System Information Radio Network) of the downlink control information (DCI) format carried in this type of search space and carrying the system information corresponding to the primary cell (Pcell). Temporary Identity (SI-RNTI) scrambled Cyclic Redundancy Check (CRC).
- SI-RNTI Temporary Identity
- Type0A-PDCCH common search space. This type of search space is defined for the PDCCH corresponding to other system information (OSI).
- OSI system information
- the DCI format carried in the PDCCH detected in this type of search space carries the SI-RNTI scrambled CRC corresponding to the primary cell Pcell.
- Type1-PDCCH common search space This type of search space is defined for ordinary PDCCHs (also called normal PDCCHs).
- the DCI format carried in the PDCCH detected in this type of search space carries the Random Access Radio Network Temporary Identity (RA-RNTI) corresponding to the primary cell Pcell, and the Wireless Network Temporary Identity (RA-RNTI) of the temporary cell ( Temporary CRC scrambled by Cell Radio Network Temporary Identity (TC-RNTI) or the cell's wireless network temporary identity (Cell Radio Network Temporary Identity (C-RNTI)).
- RA-RNTI Random Access Radio Network Temporary Identity
- TC-RNTI Cell Radio Network Temporary Identity
- C-RNTI Cell Radio Network Temporary Identity
- Type2-PDCCH common search space.
- the DCI format carried in the PDCCH detected in this type of search space carries the paging radio network temporary identity (P-RNTI) scrambled corresponding to the primary cell Pcell.
- P-RNTI paging radio network temporary identity
- Type3-PDCCH common search space.
- the DCI format carried in the PDCCH detected in this type of search space carries the wireless network temporary identification (Interruptted Transmission Radio Network Temporary Identity, INT-RNTI), time slot format indication.
- SFI-RNTI Wireless Network Temporary Identifier-Radio Network Temporary Identity
- TPC-PUSCH-Radio Network Temporary Identity TPC-PUSCH-RNTI
- Terminal-specific search space (UE-specific search space).
- the DCI format carried in the PDCCH detected in the search space carries a C-RNTI, CS-RNTI, or SP-RNTI scrambled CRC.
- the second PDCCH in the embodiment of the present disclosure corresponds to at least one of the above search spaces.
- the scheduling DCI in the embodiment of the present disclosure includes an indication field for indicating at least one of the following monitoring behaviors:
- the second PDCCH is not detected during the first transmission time; wherein the indication field includes an indication bit used to indicate that the terminal does not detect the second PDCCH during the first transmission time.
- the first transmission time is: N time domain transmission units, N second PDCCH monitoring periods or N monitoring time domain transmission units in the second PDCCH monitoring period; wherein the time domain transmission units include: Slot slot, mini-slot, millisecond or time domain symbol, N is a positive integer.
- the scheduling DCI includes an indication field for indicating that N subsequent slots, N PDCCH monitoring periods, or N monitoring slots that belong to the PDCCH monitoring period do not detect the second PDCCH.
- the indication field may also indicate that the network devices in the subsequent N slots, N PDCCH monitoring periods, or N monitoring slots that belong to the PDCCH monitoring period do not send the second PDCCH, which indirectly indicates that the terminal does not need to perform the second PDCCH during this period. PDCCH detection.
- the indication field includes an indication bit for indicating whether to detect the second PDCCH within the second transmission time.
- the indication bits in the indication domain form a bitmap. The position of each bit in the bitmap represents different time domain transmission units, different monitoring periods, or different monitoring time domain transmission units in the monitoring period. For example, in a 5-bit bitmap, the first bit represents the first slot in the second transmission time, the second bit represents the second slot in the second transmission time, and so on. It is assumed that the indication field includes a bitmap formed by N bits, and the second transmission time is: N time-domain transmission units, N second PDCCH monitoring periods, or N monitoring time-domain transmissions in the second PDCCH monitoring period.
- N is a positive integer.
- the value of the bit in the bitmap is "1" to indicate that the second PDCCH needs to be detected on the time domain transmission unit corresponding to the bit, and "0" is used to indicate that the detection of the second PDCCH is not required on the time domain transmission unit corresponding to the bit. Two PDCCH; or vice versa.
- the N value corresponding to the first transmission time may be the same or different from the N value corresponding to the second transmission time, which is not specifically limited in this embodiment.
- Detection parameters related to the second PDCCH include at least one of a detection period, a detection offset value, and a detection duration.
- the indication field includes 2 bits, 00 indicates that the detection period is 5 slots, 01 indicates that the detection period is 10 slots, 10 indicates that the detection period is 20 slots, and 11 indicates other uses.
- the indication field is used to indicate that the detection parameter related to the second PDCCH is one of a candidate set of detection parameters, and the candidate set of detection parameters is indicated by the network device through radio resource control RRC signaling. That is, the network device indicates a candidate parameter set through radio resource control RRC signaling.
- the candidate parameter set includes at least one detection parameter related to the second PDCCH, and the indication field is used to indicate one of the candidate parameter set.
- the network device is configured with detection parameter 1 (such as a detection cycle of 5 slots), detection parameter 2 (such as a detection cycle of 10 slots), and detection parameter 3 (such as a detection cycle of 15 slots) through RRC signaling.
- the indication field in the scheduling DCI is used to indicate which detection parameter is selected, that is, one of detection parameters 1, 2 and 3 is selected.
- the CDRX parameters include: the period of the CDRX, the offset value of the CDRX, and the activation period of the CDRX (or called the activation timer onduration timer) At least one.
- the indication field is used to indicate that the CDRX parameter is one of the candidate set of CDRX parameters
- the candidate set of CDRX parameters is a network device RRC signaling indication through radio resource control. That is, the network device indicates a candidate set of CDRX parameters through radio resource control RRC signaling.
- the candidate set of CDRX parameters includes at least one CDRX parameter
- the indication field is used to indicate one of the candidate set of CDRX parameters.
- the network device is configured with CDRX parameter 1 (such as a DRX cycle of 160 ms), CDRX parameter 2 (such as a DRX cycle of 320 ms), and CDRX parameter 3 (such as a DRX cycle of 1280 ms) through RRC signaling.
- CDRX parameter 1 such as a DRX cycle of 160 ms
- CDRX parameter 2 such as a DRX cycle of 320 ms
- CDRX parameter 3 such as a DRX cycle of 1280 ms
- the indication field in the scheduling DCI is used to indicate which CDRX parameter is selected, that is, one of CDRX parameters 1, 2 and 3 is selected.
- the target signaling is different from the scheduling DCI, and the target signaling is used to indicate detection parameters related to the second PDCCH.
- the target signaling may include, but is not limited to, MAC layer CE, RRC signaling, and the like. Taking RRC signaling as an example, the terminal monitors the second PDCCH according to the monitoring parameters of the search space (search space) configured by the RRC signaling.
- the indication field in the scheduling DCI in this embodiment may include a dedicated indication field, or the indication field includes at least one of the following fields: a time domain resource allocation field, a carrier indication field, a bandwidth part indication field, and a hybrid automatic retransmission. Request feedback timing indication field. That is, the scheduling DCI for indicating the monitoring behavior related to the second PDCCH may add a dedicated indication field, or may reuse some fields in the existing scheduling DCI format. It is also worth pointing out that the indication field in the scheduling DCI may indicate any one of the above-mentioned monitoring behaviors 1 to 5 individually, or may use different values of different bits in the indication field to indicate the combination of the above-mentioned monitoring behaviors 1 to 5.
- the network device instructs the terminal to follow the next N slots, N second PDCCH monitoring periods, or N belong to the second PDCCH monitoring period through a new field (for example, 4 bits) in the DCI.
- the monitoring slot does not need to monitor the second PDCCH.
- the second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 4-bit field may only be used to indicate the value of N, but not other information.
- the 4-bit field may further indicate, in addition to the value of N, which DCI format the second PDCCH is for.
- 1 bit of 4 bits is used to indicate which type of DCI format, such as uplink and downlink; the remaining 3 bits are used to indicate the value of N.
- 2 bits in 4 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, and there are 4 formats; the remaining 2 bits are used to indicate the value of N.
- Example 1 By scheduling the time domain resource allocation (Time domain resource assignment) field in the DCI format, it is indicated that the terminal does not perform the following N slots, N second PDCCH monitoring periods, or N monitoring slots belonging to the second PDCCH monitoring period. Need to monitor the second PDCCH.
- the network device configures the PDSCH-TimeDomainResourceAllocationList (PDSCH-TimeDomainResourceAllocationList) parameter (in the pdsch-Config) of the terminal to have only one entity through RRC signaling.
- the terminal determines the time domain scheduling information according to the above entity, such as determining at least one of the following parameters: K0, mappingType, startSymbolAndLength, so there is no need to rely on the Time domain domain resource resource assignment field in the scheduling DCI to determine the time domain scheduling information.
- the network device indicates that the terminal does not need to monitor the PDCCH in the subsequent N slots or N PDCCH monitoring periods by scheduling the Time domain resource assignment field (for example, 4 bits) in the DCI format.
- the above-mentioned second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 4-bit field may only be used to indicate the value of N, but not other information.
- the 4-bit field may further indicate, in addition to the value of N, which DCI format the second PDCCH is for. For example, 1 bit of 4 bits is used to indicate which type of DCI format, such as uplink and downlink; the remaining 3 bits are used to indicate the value of N. Alternatively, 2 bits in 4 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, and there are 4 formats; the remaining 2 bits are used to indicate the value of N.
- the network device configures the PUSCH-TimeDomainResourceAllocationList parameter (in the push-Config) of the terminal's PUSCH to have only one entity through RRC signaling.
- the terminal determines the time domain scheduling information according to the above entity, such as determining at least one of the following parameters: K2, mappingType, startSymbolAndLength, so there is no need to rely on the Time domain domain resource resource assignment field in the scheduling DCI to determine the PUSCH time domain scheduling information.
- the network device indicates that the terminal does not need to monitor the PDCCH in the subsequent N slots or N PDCCH monitoring periods by scheduling the Time domain resource assignment field (for example, 4 bits) in the DCI format.
- the above-mentioned second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 4-bit field may only be used to indicate the value of N, but not other information.
- the 4-bit field may further indicate, in addition to the value of N, which DCI format the second PDCCH is for. For example, 1 bit of 4 bits is used to indicate which type of DCI format, such as uplink and downlink; the remaining 3 bits are used to indicate the value of N. Alternatively, 2 bits in 4 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, and there are 4 formats; the remaining 2 bits are used to indicate the value of N.
- Example 2 By scheduling the Carrier Indicator field in the DCI format, it is indicated that the terminal does not need to monitor the second on the subsequent N slots, N second PDCCH monitoring periods, or N monitoring slots belonging to the second PDCCH monitoring period. PDCCH.
- the network device schedules a Carrier indicator field (for example, 3 bits) in the DCI format to indicate that subsequent N slots, N PDCCH monitoring periods, or N monitoring slots belonging to the PDCCH monitoring period do not need to monitor the second PDCCH.
- the second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 3bit field may only be used to indicate the value of N and not to indicate other information.
- the 3-bit field may further indicate, in addition to the value of N, which DCI format the second PDCCH is for.
- 1 bit of 3 bits is used to indicate which type of DCI format, such as uplink and downlink; the remaining 2 bits are used to indicate the value of N. Or, 2 bits in 3 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, etc. There are 4 formats; the remaining 1 bit is used to indicate the value of N.
- the terminal supports the above scheme when cross-carrier scheduling is not configured.
- Example 3 The Bandwidth Part Indicator field in the DCI format is scheduled to indicate that the terminal does not need to monitor the second PDCCH in the subsequent N slots, N PDCCH monitoring periods, or N monitoring slots belonging to the PDCCH monitoring period.
- the Bandwidth part indicator (for example, 2 bits) in the DCI format is scheduled to indicate that N subsequent slots, N PDCCH monitoring periods, or N monitoring slots belonging to the PDCCH monitoring period do not need to monitor the second PDCCH.
- the second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 2bits field may only be used to indicate the value of N without indicating other information.
- the 2bits field may further indicate, in addition to the value of N, which DCI format the second PDCCH is for. For example, 1 bit in 2 bits is used to indicate which type of DCI format, such as uplink and downlink; the remaining 1 bit is used to indicate the value of N.
- the terminal supports the above scheme when cross-BWP scheduling is not configured.
- Example four By scheduling a Hybrid Automatic Repeat Request (HARQ) feedback timing indicator (PDSCH-to-HARQ_feedback timing indicator) of the PDSCH in the DCI format, the terminal instructs the terminal to perform N subsequent slots, N PDCCH monitoring periods, or The N monitoring slots belonging to the PDCCH monitoring period need not monitor the second PDCCH.
- HARQ Hybrid Automatic Repeat Request
- the network device can indicate the subsequent N slots, N slots by the PDSCH-to-HARQ_feedback timing indicator field (for example, 3 bits) in the first PDCCH.
- the PDCCH monitoring period or N monitoring slots belonging to the PDCCH monitoring period need not monitor the second PDCCH.
- the second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 3bit field may only be used to indicate the value of N and not to indicate other information.
- the 3-bit field may further indicate, in addition to the value of N, which DCI format the second PDCCH is for. For example, 1 bit of 3 bits is used to indicate which type of DCI format, such as uplink and downlink; the remaining 2 bits are used to indicate the value of N. Or, 2 bits in 3 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, etc. There are 4 formats; the remaining 1 bit is used to indicate the value of N.
- network equipment can semi-statically indicate the value of PDSCH-to-HARQ_feedback timing indicator via RRC signaling.
- Example five At least two items in the time domain resource allocation field, carrier indication field, bandwidth part indication field, and hybrid automatic retransmission request feedback timing indication field jointly indicate that the terminal is in N subsequent slots, N PDCCH monitoring periods, or N The monitoring slot belonging to the PDCCH monitoring period does not need to monitor the second PDCCH.
- the network device When the first PDCCH is a PDCCH of DCI format 0_0 or DCI format 0_1, the network device jointly instructs the subsequent N slots and N slots through at least two items (6 bits) of the time domain resource allocation field, the carrier indication field, and the bandwidth part indication field.
- the PDCCH monitoring period or N monitoring slots belonging to the PDCCH monitoring period need not monitor the second PDCCH.
- the second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 6 bits field may only be used to indicate the value of N, but not other information.
- the 6bits field may further indicate the DCI format for the second PDCCH in addition to the value of N.
- 1 bit in 6 bits is used to indicate which DCI format, such as uplink and downlink; the remaining 5 bits are used to indicate the value of N.
- 2 bits in 6 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, etc.
- the network device uses at least two of the time domain resource allocation field, carrier indication field, bandwidth part indication field, and hybrid automatic repeat request feedback timing indication field (6bits ) Jointly instruct the subsequent N slots, N PDCCH monitoring periods, or N monitoring slots belonging to the PDCCH monitoring period to not need to monitor the second PDCCH.
- the second PDCCH is a PDCCH that transmits DCI format 0_0, DCI format 0_1, DCI format 1_0, and / or DCI format 1_1.
- the 6 bits field may only be used to indicate the value of N, but not other information.
- the 6bits field may further indicate the DCI format for the second PDCCH in addition to the value of N.
- 1 bit in 6 bits is used to indicate which DCI format, such as uplink and downlink; the remaining 5 bits are used to indicate the value of N.
- 2 bits in 6 bits are used to indicate which DCI format, such as uplink and downlink rollback or non-rollback DCI, etc.
- the indication field of the indication domain only indicates one kind of monitoring behavior (taking monitoring behavior 1 as an example).
- the network device can also indicate a combination of multiple monitoring behaviors through the indication field of the indication domain (such as monitoring behavior 1 and Combination of 4).
- monitoring behavior 1 and Combination of 4 Taking the time domain resource allocation field as an example, 4bit is used.
- the terminal is instructed to detect the second PDCCH according to the received target signaling; other values are used to indicate the value of N. It is worth pointing out that the combination of other indication fields indicating multiple monitoring behaviors is similar, and the embodiments of the present disclosure will not list them one by one.
- the scheduling DCI in the embodiment of the present disclosure is visible to terminals of R16 and later versions (the dedicated indication field is newly added in the scheduling DCI or the meaning of the existing field is redefined).
- the terminal After receiving the above-mentioned scheduled DCI indicating the PDCCH monitoring behavior, the terminal does not need to report response ACK information to the network device; after not receiving the scheduled DCI, it does not need to report non-response NACK information to the network device.
- the method further includes: after the first transmission time, detecting the second PDCCH according to the received target signaling. For example, after scheduling the N slots indicated by DCI, N PDCCH monitoring periods, or N monitoring slots belonging to the PDCCH monitoring period, the terminal monitors the monitoring parameters according to the monitoring parameters of the search space of the network device configuration (such as RRC signaling configuration) Two PDCCHs. It is worth pointing out that if the second PDCCH is detected after the first PDCCH is detected (including the first transmission time), and the second PDCCH carries the scheduling DCI, the terminal performs the subsequent PDCCH according to the scheduled DCI in the second PDCCH. Listening. If the second PDCCH is not detected or a new scheduling DCI is not detected from the second PDCCH, the terminal performs subsequent PDCCH detection according to the received target signaling.
- the network device configuration such as RRC signaling configuration
- the method further includes: sending report information to the network device; wherein the report information is used to indicate that the first time is not detected during the first transmission time.
- the terminal sends reporting information to the network device according to its own scheduling needs, and when there is no scheduling demand, the reporting indicates that the second PDCCH reporting information is not detected within the first transmission time, or according to the scheduling requirements of the service, indicating whether or not to report the Detect reporting information of the second PDCCH.
- the network device may refer to the reported information to generate a scheduling DCI to indicate a subsequent monitoring behavior of the terminal.
- the start time of step 22, that is, the effective time of the indication field in the scheduling DCI indicating the terminal monitoring behavior is one of the following:
- the next slot in which the DCI is scheduled that is, the next slot after the terminal receives the scheduled DCI.
- the slot after the gap interval after the DCI is scheduled where the gap is predefined or configured by the network device, that is, there is a gap between the receipt of the scheduled DCI and the indication that the domain is in effect.
- the monitoring behavior rule is used to detect the PDCCH.
- L The Lth slot after the slot where the physical uplink shared channel PUSCH scheduled by the DCI is scheduled, where L is a positive integer.
- the values of L and M can be predefined or configured by network equipment.
- the terminal fails to demodulate the initial transmission or retransmission PDSCH, the terminal reports NACK.
- the terminal successfully receives the scheduling DCI indicating the monitoring behavior (such as monitoring behavior 1), the terminal directly does not perform PDCCH monitoring in the first transmission time according to the instruction of the scheduling DCI. Then the terminal detects the third PDCCH used for PDSCH retransmission scheduling after the first transmission time has elapsed.
- the terminal if the transmission of the first or retransmitted PUSCH fails, after the terminal successfully receives the scheduling DCI indicating the monitoring behavior (such as the monitoring behavior 1), the terminal does not perform the first transmission time according to the instruction of the scheduling DCI PDCCH monitoring. Then the terminal detects the third PDCCH used for PUSCH retransmission scheduling after the first transmission time has elapsed.
- the scheduling DCI indicating the monitoring behavior such as the monitoring behavior 1
- step 22 may refer to, but is not limited to, the following methods: In the case of the initial transmission or retransmission failure of the data channel scheduled by the first PDCCH, according to the scheduling DCI, it is determined whether to detect on the target resource The second PDCCH.
- the target resource is a time domain resource other than the time domain where the third PDCCH scheduling the data channel retransmission is located.
- the third PDCCH is used for scheduling of data channel retransmission.
- the method further includes: detecting a third PDCCH on a time domain resource where the third PDCCH is located in a case where the initial transmission or retransmission of the data channel scheduled by the first PDCCH fails.
- the terminal if the terminal fails to demodulate the first or retransmitted PDSCH, the terminal reports a NACK. After the terminal successfully receives the scheduling DCI indicating the monitoring behavior (such as monitoring behavior 1), the terminal, in the first transmission time, excluding resources in the time domain where the third PDCCH (for PDSCH retransmission scheduling) is located, according to the scheduling The DCI is instructed not to monitor the PDCCH.
- the terminal if the transmission of the first or retransmitted PUSCH fails, after the terminal successfully receives the scheduling DCI indicating the monitoring behavior (such as monitoring behavior 1), the terminal divides the third PDCCH (for PUSCH) in the first transmission time. On resources other than the time domain resources in which the retransmission is scheduled, monitoring of the PDCCH is not performed according to the indication of the scheduling DCI.
- the terminal dynamically indicates whether to detect a PDCCH by scheduling DCI, so that the terminal can detect the PDCCH more flexibly, avoid unnecessary PDCCH detection, and help the terminal save power.
- the terminal 300 can detect the first physical downlink control channel PDCCH in the foregoing embodiment; if the scheduling downlink control information DCI is received from the first PDCCH, it is determined whether the scheduling DCI is Detecting the details of the second PDCCH method and achieving the same effect, the terminal 300 specifically includes the following functional modules:
- a first detection module 310 configured to detect a first physical downlink control channel PDCCH
- the second detection module 320 is configured to determine whether to detect the second PDCCH according to the scheduling DCI if the scheduling downlink control information DCI is received from the first PDCCH.
- the terminal 300 further includes:
- a third detection module is configured to detect the second PDCCH according to the received target signaling if no scheduling DCI is received from the first PDCCH; where the target signaling is different from the scheduling DCI, the target signaling is used to indicate Detection parameters related to the second PDCCH.
- the second PDCCH is detected according to the received target signaling, where the target signaling is different from the scheduling DCI, and the target signaling is used to indicate a detection parameter related to the second PDCCH.
- the indication field includes a dedicated indication field, or the indication field includes at least one of the following fields:
- a time domain resource allocation field a carrier indication field, a bandwidth part indication field, and a hybrid automatic repeat request feedback timing indication field.
- the second PDCCH corresponds to at least one DCI format, and / or the second PDCCH corresponds to at least one search space.
- the CDRX parameters include at least one of a period of the CDRX, an offset value of the CDRX, and an activation period of the CDRX.
- the indication field is used to indicate that the detection parameter related to the second PDCCH is one of a candidate set of detection parameters, and the candidate set of detection parameters is indicated by the network device through radio resource control RRC signaling.
- the indication field is used to indicate that the CDRX parameter is an item in the candidate set of CDRX parameters, and the candidate set of CDRX parameters is an indication of the RRC signaling by the network device through radio resource control.
- the terminal 300 further includes:
- a fourth detection module is configured to detect the second PDCCH according to the received target signaling after the first transmission time.
- the first transmission time or the second transmission time is: N time domain transmission units, N second PDCCH monitoring periods, or N monitoring time domain transmission units in the second PDCCH monitoring period; wherein the time domain transmission units include : Slot slot, mini-slot, millisecond or time domain symbol, N is a positive integer.
- the terminal 300 further includes:
- the reporting module is configured to send reporting information to the network device, where the reporting information is used to indicate whether the second PDCCH is not detected during the first transmission time or whether the second PDCCH is detected during the second transmission time.
- the detection parameters related to the second PDCCH include at least one of a detection period, a detection offset value, and a detection duration.
- the start time of detecting the second PDCCH step is one of the following:
- L The Lth slot after the slot where the physical uplink shared channel PUSCH scheduled by the DCI is scheduled, where L is a positive integer.
- the second detection module 320 includes:
- a first detection submodule configured to determine whether to detect a second PDCCH on a target resource according to a scheduling DCI in a case where an initial transmission or retransmission of a data channel scheduled by the first PDCCH fails; wherein the target resource is in addition to the scheduled data Time domain resources outside the time domain where the third PDCCH of the channel retransmission is located.
- the terminal 300 further includes:
- a fifth detection module is configured to determine that the third PDCCH is detected on a time domain resource where the third PDCCH is located in a case where the initial transmission or retransmission of the data channel scheduled by the first PDCCH fails.
- the monitoring parameters of the first PDCCH are configured by the network device; the monitoring parameters include at least one of a monitoring period, a monitoring offset value, and a monitoring duration.
- each functional module of the above terminal may be fully or partially integrated into one physical entity, or may be physically separated.
- the first detection module 310, the second detection module 320, the third detection module, the fourth detection module, and the fifth detection module described above may be separate transmitting and receiving elements, or may be integrated into a transceiver. It is worth pointing out that the implementation of other modules is similar. In the implementation process, each of the above modules can be completed by hardware integrated logic circuits or instructions in the form of software in a processor element.
- the terminal in the embodiment of the present disclosure dynamically indicates whether to detect the PDCCH by scheduling the DCI, which makes the terminal more flexible in detecting the PDCCH, can avoid unnecessary PDCCH detection, and is beneficial to the terminal's power saving.
- FIG. 4 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure.
- the terminal 40 includes, but is not limited to, a radio frequency unit 41, a network module 42, an audio output unit 43, The input unit 44, the sensor 45, the display unit 46, the user input unit 47, the interface unit 48, the memory 49, the processor 410, and the power source 411 and other components.
- the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components.
- the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.
- the radio frequency unit 41 is configured to send and receive data under the control of the processor 410, and is specifically configured to detect the first physical downlink control channel PDCCH; and a second detection module is configured to receive scheduling downlink control information from the first PDCCH. DCI, determines whether to detect the second PDCCH4 according to the scheduling DCI;
- the terminal in the embodiment of the present disclosure dynamically indicates whether to detect a PDCCH by scheduling DCI, which makes the terminal more flexible in detecting the PDCCH, avoids unnecessary PDCCH detection, and is beneficial to the terminal's power saving.
- the radio frequency unit 41 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, the downlink data from the base station is received and processed by the processor 410; The uplink data is sent to the base station.
- the radio frequency unit 41 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- the radio frequency unit 41 can also communicate with a network and other devices through a wireless communication system.
- the terminal provides users with wireless broadband Internet access through the network module 42, such as helping users to send and receive email, browse web pages, and access streaming media.
- the audio output unit 43 may convert audio data received by the radio frequency unit 41 or the network module 42 or stored in the memory 49 into audio signals and output them as sound. Moreover, the audio output unit 43 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 40.
- the audio output unit 43 includes a speaker, a buzzer, a receiver, and the like.
- the input unit 44 is used to receive audio or video signals.
- the input unit 44 may include a Graphics Processing Unit (GPU) 441 and a microphone 442, and the graphics processor 441 may pair images of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. Data is processed.
- the processed image frames may be displayed on the display unit 46.
- the image frames processed by the graphics processor 441 may be stored in the memory 49 (or other storage medium) or transmitted via the radio frequency unit 41 or the network module 42.
- the microphone 442 can receive sound, and can process such sound into audio data.
- the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 41 in the case of a telephone call mode.
- the terminal 40 further includes at least one sensor 45, such as a light sensor, a motion sensor, and other sensors.
- the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 461 according to the brightness of the ambient light, and the proximity sensor can close the display panel 461 and / or when the terminal 40 moves to the ear. Or backlight.
- the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the attitude of the terminal (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .; sensor 45 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.
- the display unit 46 is used to display information input by the user or information provided to the user.
- the display unit 46 may include a display panel 461, and the display panel 461 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
- LCD liquid crystal display
- OLED organic light-emitting diode
- the user input unit 47 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal.
- the user input unit 47 includes a touch panel 471 and other input devices 472.
- the touch panel 471 also known as a touch screen, can collect user's touch operations on or near it (for example, the user uses a finger, a stylus or any suitable object or accessory on the touch panel 471 or near the touch panel 471 operating).
- the touch panel 471 may include two parts, a touch detection device and a touch controller.
- the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it To the processor 410, receive the command sent by the processor 410 and execute it.
- the touch panel 471 may be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave.
- the user input unit 47 may further include other input devices 472.
- other input devices 472 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
- the touch panel 471 may be overlaid on the display panel 461.
- the touch panel 471 detects a touch operation on or near the touch panel 471, the touch panel 471 transmits the touch operation to the processor 410 to determine the type of the touch event.
- the type of event provides corresponding visual output on the display panel 461.
- the touch panel 471 and the display panel 461 are implemented as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 471 and the display panel 461 may be integrated and Implement the input and output functions of the terminal, which are not limited here.
- the interface unit 48 is an interface through which an external device is connected to the terminal 40.
- the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input / output (I / O) port, video I / O port, headphone port, and more.
- the interface unit 48 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 40 or may be used to communicate between the terminal 40 and an external device. Transfer data.
- the memory 49 can be used to store software programs and various data.
- the memory 49 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
- the memory 49 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device.
- the processor 410 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal. By running or executing software programs and / or modules stored in the memory 49 and calling data stored in the memory 49, the execution is performed. Various functions and processing data of the terminal, so as to monitor the terminal as a whole.
- the processor 410 may include one or more processing units; optionally, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
- the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 410.
- the terminal 40 may further include a power source 411 (such as a battery) for supplying power to various components.
- a power source 411 such as a battery
- the power source 411 may be logically connected to the processor 410 through a power management system, thereby implementing management of charging, discharging, and power consumption management through the power management system. And other functions.
- the terminal 40 includes some functional modules that are not shown, and details are not described herein again.
- an embodiment of the present disclosure further provides a terminal, including a processor 410, a memory 49, and a computer program stored in the memory 49 and executable on the processor 410.
- the terminal may be a wireless terminal or a wired terminal.
- the wireless terminal may be a device that provides voice and / or other business data connectivity to the user, a handheld device with a wireless connection function, or other processing equipment connected to a wireless modem. .
- a wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN).
- RAN Radio Access Network
- the wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal
- a mobile terminal such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal
- it can be a portable, pocket, handheld, computer-built or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network.
- PCS Personal Communication Service
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- a wireless terminal can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, a remote terminal,
- the access terminal Access terminal
- user terminal User terminal
- user agent User agent
- user equipment User Equipment
- An embodiment of the present disclosure also provides a computer-readable storage medium.
- a computer program is stored on the computer-readable storage medium.
- the processes of the foregoing channel detection instruction method embodiment are implemented, and the same can be achieved.
- Technical effects To avoid repetition, we will not repeat them here.
- the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
- the channel detection indication method according to the embodiment of the present disclosure is applied to a network device.
- the method includes the following steps:
- Step 51 Send a first physical downlink control channel PDCCH, where the first PDCCH carries scheduling downlink control information DCI, and the scheduling DCI is used to indicate whether the terminal detects the second PDCCH.
- the monitoring parameters of the first PDCCH are configured by a network device, and the monitoring parameters include at least one of a monitoring period, a monitoring offset value, and a monitoring duration. In this way, by scheduling the DCI to dynamically indicate the detection behavior of the terminal, the terminal can avoid unnecessary PDCCH detection, thereby saving power consumption of the terminal.
- the second PDCCH in the embodiment of the present disclosure corresponds to at least one DCI format, and / or the second PDCCH corresponds to at least one search space.
- the second PDCCH corresponds to at least one of a scheduled DCI format, or corresponds to at least one of a non-scheduled DCI format, or corresponds to at least one of a scheduled DCI format and a non-scheduled DCI format.
- the scheduling DCI in the embodiment of the present disclosure includes an indication field for indicating at least one of the following monitoring behaviors:
- the second PDCCH is not detected during the first transmission time.
- the first transmission time is: N time domain transmission units, N second PDCCH monitoring periods, or N monitoring time domains in the second PDCCH monitoring period.
- the second transmission time is: N time domain transmission units, N second PDCCH monitoring periods, or N monitoring time domains in the second PDCCH monitoring period A transmission unit; wherein the time-domain transmission unit includes a slot slot, a mini-slot, a millisecond, or a time-domain symbol, and N is a positive integer.
- Detection parameters related to the second PDCCH include at least one of a detection period, a detection offset value, and a detection duration.
- the indication field includes 2 bits, 00 indicates that the detection period is 5 slots, 01 indicates that the detection period is 10 slots, 10 indicates that the detection period is 20 slots, and 11 indicates other uses.
- the network device may also indicate a candidate parameter candidate set through radio resource control RRC signaling.
- the candidate parameter candidate set includes at least one detection parameter related to the second PDCCH, and the indication field is used to indicate one of the candidate parameter candidate sets. This scenario corresponds to the above-mentioned monitoring behavior 3, so it will not be repeated here.
- the connected state discontinuously receives CDRX parameters; the CDRX parameters include at least one of a period of the CDRX, an offset value of the CDRX, and an activation period of the CDRX.
- the network device may also indicate a candidate set of CDRX parameters through radio resource control RRC signaling.
- the candidate set of CDRX parameters includes at least one CDRX parameter, and the indication field is used to indicate one of the candidate set of CDRX parameters. This scenario corresponds to the above-mentioned monitoring behavior 4, so it will not be repeated here.
- the second PDCCH is detected according to the received target signaling, where the target signaling is different from the scheduling DCI, and the target signaling is used to indicate a detection parameter related to the second PDCCH.
- This scenario corresponds to the above-mentioned monitoring behavior 5, so it will not be repeated here.
- the indication field in the scheduling DCI in this embodiment may include a dedicated indication field, or the indication field includes at least one of the following fields: a time domain resource allocation field, a carrier indication field, a bandwidth part indication field, and a hybrid automatic retransmission. Request feedback timing indication field. It is worth pointing out that the indication field in the scheduling DCI may indicate any one of the above-mentioned listening behaviors 1 to 5 individually, and may also indicate the combination of the above-mentioned listening behaviors 1 to 5 through different values of different bits in the indication field. An example of adding a dedicated indication field or reusing an existing partial field in the scheduling DCI is similar to the related embodiment on the terminal side, so it is not repeated here.
- the method further includes: receiving reporting information; wherein the reporting information is used to indicate that the second PDCCH is not detected during the first transmission time, or during the second transmission time. Whether to detect the second PDCCH.
- the network device may refer to the reported information to generate a scheduling DCI to indicate a subsequent monitoring behavior of the terminal.
- the effective start time of a field in the scheduling DCI indicating whether the terminal detects the second PDCCH is one of the following:
- the slot after the gap interval after the DCI is scheduled where the gap is predefined or configured by the network device, that is, there is a gap between the receipt of the scheduled DCI and the indication that the domain is in effect.
- Monitoring behavior rules for PDCCH detection
- L is a positive integer. It is worth pointing out that the values of L and M can be predefined or configured by the network device.
- the method further includes: determining whether to send the second PDCCH on the target resource according to the scheduled DCI in the case where the initial transmission or retransmission of the data channel scheduled by the first PDCCH fails; It is a time domain resource other than the time domain resource where the third PDCCH for retransmission of the data channel is scheduled.
- the method further includes: sending a third PDCCH on a time domain resource where the third PDCCH is located in a case where the data channel scheduled by the first PDCCH fails to be transmitted initially or retransmits.
- the terminal fails to demodulate the first or retransmitted PDSCH, the terminal reports a NACK.
- the terminal successfully receives the scheduling DCI indicating the monitoring behavior (such as monitoring behavior 1), the terminal, in the first transmission time, excluding resources in the time domain where the third PDCCH (for PDSCH retransmission scheduling) is located, according to the scheduling
- the DCI is instructed not to monitor the PDCCH.
- the terminal if the transmission of the first or retransmitted PUSCH fails, after the terminal successfully receives the scheduling DCI indicating the monitoring behavior (such as monitoring behavior 1), the terminal divides the third PDCCH (for PUSCH) in the first transmission time. On resources other than the time domain resources in which the retransmission is scheduled, monitoring of the PDCCH is not performed according to the indication of the scheduling DCI.
- a network device sends a PDCCH carrying a scheduling DCI to a terminal, where the scheduling DCI is used to indicate whether the terminal detects a second PDCCH, and the terminal determines whether to detect the PDCCH according to the dynamic scheduling DCI indication, so that The terminal detects PDCCH more flexibly, avoids unnecessary PDCCH detection, and helps the terminal save power.
- the network device 600 can transmit the first physical downlink control channel PDCCH in the foregoing embodiment.
- the first PDCCH carries scheduling downlink control information DCI, and the scheduling DCI is used to indicate a terminal.
- the network device 600 specifically includes the following functional modules:
- the first sending module 610 is configured to send a first physical downlink control channel PDCCH, where the first PDCCH carries scheduling downlink control information DCI, and the scheduling DCI is used to indicate whether the terminal detects the second PDCCH.
- the second PDCCH is detected according to the received target signaling, where the target signaling is different from the scheduling DCI, and the target signaling is used to indicate a detection parameter related to the second PDCCH.
- the indication field includes a dedicated indication field, or the indication field includes at least one of the following fields:
- a time domain resource allocation field a carrier indication field, a bandwidth part indication field, and a hybrid automatic repeat request feedback timing indication field.
- the second PDCCH corresponds to at least one DCI format, and / or the second PDCCH corresponds to at least one search space.
- the CDRX parameters include at least one of a period of the CDRX, an offset value of the CDRX, and an activation period of the CDRX.
- the network device indicates a candidate parameter set through radio resource control RRC signaling.
- the candidate parameter set includes at least one detection parameter related to the second PDCCH, and the indication field is used to indicate one of the candidate parameter set.
- the network device indicates a candidate set of CDRX parameters through radio resource control RRC signaling.
- the candidate set of CDRX parameters includes at least one CDRX parameter, and the indication field is used to indicate one of the candidate set of CDRX parameters.
- the first transmission time or the second transmission time is: N time domain transmission units, N second PDCCH monitoring periods, or N monitoring time domain transmission units in the second PDCCH monitoring period; wherein the time domain transmission units include : Slot slot, mini-slot, millisecond or time domain symbol, N is a positive integer.
- the network device 600 further includes:
- the receiving module is configured to receive the reporting information.
- the reporting information is used to indicate whether the second PDCCH is not detected during the first transmission time or whether the second PDCCH is detected during the second transmission time.
- the detection parameters related to the second PDCCH include at least one of a detection period, a detection offset value, and a detection duration.
- L The Lth slot after the slot where the physical uplink shared channel PUSCH scheduled by the DCI is scheduled, where L is a positive integer.
- the network device 600 includes:
- a second sending module configured to determine whether to send the second PDCCH on the target resource according to the scheduling DCI when the data channel scheduled by the first PDCCH fails to be transmitted initially or retransmits; wherein the target resource is in addition to the scheduled data channel Time domain resources other than the time domain resources where the retransmitted third PDCCH is located.
- the network device 600 further includes:
- the third sending module is configured to send the third PDCCH on a time domain resource where the third PDCCH is located in a case where the initial transmission or retransmission of the data channel scheduled by the first PDCCH fails.
- the network device 600 further includes:
- a configuration module is configured to configure a monitoring parameter for the first PDCCH.
- the monitoring parameter includes at least one of a monitoring period, a monitoring offset value, and a monitoring duration.
- each functional module of the above network device when it is actually implemented, it may be fully or partially integrated into one physical entity, or may be physically separated.
- the above-mentioned first sending module 610 and the second sending module may be separately set transceiver elements, or may be integrated into one transceiver. It is worth pointing out that the implementation of other modules is similar. In the implementation process, each of the above modules can be completed by hardware integrated logic circuits or instructions in the form of software in a processor element.
- each module of the above network equipment and terminal is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or it can be physically separated. And these modules can all be implemented in the form of software through processing element calls; they can also be implemented in hardware; all modules can be implemented in the form of software called by processing elements, and some modules can be implemented in hardware.
- the determination module may be a separately established processing element, or may be integrated and implemented in a chip of the above-mentioned device. In addition, it may also be stored in the memory of the above-mentioned device in the form of a program code, and the processing element of the above-mentioned device may be used.
- each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
- the above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (ASIC), or one or more microprocessors, or One or more digital signal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc.
- ASIC application specific integrated circuit
- DSP digital signal processor
- FPGA Field Programmable Gate Arrays
- the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit) or other processor that can call program code.
- these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
- SOC system-on-a-chip
- the network device in the embodiment of the present disclosure sends to the terminal a PDCCH carrying a scheduling DCI, the scheduling DCI is used to indicate whether the terminal detects the second PDCCH, and the terminal determines whether to detect the PDCCH according to the dynamic scheduling DCI indication, so that the terminal Detecting PDCCH is more flexible, avoiding unnecessary PDCCH detection, which is beneficial to terminal power saving.
- an embodiment of the present disclosure further provides a network device.
- the network device includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
- the processor executes the computer program.
- the steps in the channel detection indication method as described above are implemented at times.
- the disclosed embodiment also provides a computer-readable storage medium.
- the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the steps of the channel detection instruction method described above.
- an embodiment of the present disclosure also provides a network device.
- the network device 700 includes: an antenna 71, a radio frequency device 72, and a baseband device 73.
- the antenna 71 is connected to the radio frequency device 72.
- the radio frequency device 72 receives information through the antenna 71 and sends the received information to the baseband device 73 for processing.
- the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72.
- the radio frequency device 72 processes the received information and sends it out via the antenna 71.
- the above-mentioned frequency band processing device may be located in a baseband device 73.
- the method performed by the network device in the above embodiments may be implemented in the baseband device 73.
- the baseband device 73 includes a processor 74 and a memory 75.
- the baseband device 73 may include, for example, at least one baseband board, and a plurality of chips are provided on the baseband board, as shown in FIG. 7.
- One of the chips is, for example, the processor 74 and is connected to the memory 75 to call a program in the memory 75 and execute the program.
- the network device operations shown in the above method embodiments are operated.
- the baseband device 73 may further include a network interface 76 for exchanging information with the radio frequency device 72.
- the interface is, for example, a common public radio interface (CPRI).
- the processor here may be a processor or a collective name for multiple processing elements.
- the processor may be a CPU, an ASIC, or one or more configured to implement the methods performed by the above network devices.
- Integrated circuits such as: one or more microprocessors, one or more DSPs, or one or more field programmable gate array FPGAs.
- a storage element may be a single memory or a collective term for multiple storage elements.
- the memory 75 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
- the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
- RAM Static Random Access Memory
- DRAM Dynamic Random Access Memory
- Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
- SDRAM double data rate synchronous dynamic random access memory
- Double Data Rate SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
- Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
- Synchlink DRAM SLDRAM
- Direct RAMbus RAM Direct RAMbus RAM, DRRAM
- the memory 75 described herein is intended to include, but is not limited to, these and any other suitable types of memory.
- the network device further includes: a computer program stored in the memory 75 and executable on the processor 74, and the processor 74 calls the computer program in the memory 75 to execute the method executed by each module shown in FIG. 6 .
- the computer program can be used to execute when called by the processor 74: sending a first physical downlink control channel PDCCH, wherein the first PDCCH carries scheduling downlink control information DCI, and the scheduling DCI is used to indicate whether the terminal detects the second PDCCH.
- the network device in the embodiment of the present disclosure sends a PDCCH carrying a scheduling DCI to the terminal, where the scheduling DCI is used to indicate whether the terminal detects the second PDCCH, and the terminal determines whether to detect the PDCCH according to the dynamic scheduling DCI indication, so that the terminal detects the PDCCH more It is flexible and avoids unnecessary PDCCH detection, which is beneficial to terminal power saving.
- the disclosed apparatus and method may be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the unit is only a logical function division.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
- each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit.
- the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present disclosure is essentially a part that contributes to related technologies or a part of the technical solution can be embodied in the form of a software product.
- the computer software product is stored in a storage medium, including several
- the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present disclosure.
- the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
- each component or each step can be disassembled and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure.
- the steps for performing the above-mentioned series of processes can be naturally performed in chronological order according to the order of description, but need not necessarily be performed in chronological order, and certain steps may be performed in parallel or independently of each other.
- it is able to understand all or any steps or components of the methods and devices of the present disclosure and may be implemented in hardware, firmware in any computing device (including a processor, a storage medium, etc.) or a network of computing devices.
- Software, or a combination thereof which can be achieved by a person of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.
- the purpose of the present disclosure can also be achieved by running a program or a group of programs on any computing device.
- the computing device may be a well-known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product including a program code that implements the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
- the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that, in the apparatus and method of the present disclosure, it is obvious that each component or each step can be disassembled and / or recombined.
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Abstract
提供了一种信道检测指示方法、终端及网络设备。该方法包括:检测第一物理下行控制信道PDCCH;若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH。
Description
相关申请的交叉引用
本申请主张在2018年7月13日在中国提交的中国专利申请号No.201810770418.9的优先权,其全部内容通过引用包含于此。
本公开涉及通信技术领域,尤其涉及一种信道检测指示方法、终端及网络设备。
在移动通信***中,物理下行控制信道(Physical Downlink Control Channel,PDCCH)的监听周期、偏移量(offset)和持续时间(duration)都是网络设备通过无线资源控制(Radio Resource Control,RRC)信令通知给终端的。但是网络设备配置的PDCCH检测周期可能不太合理,例如,如果业务包到达周期是20ms,但网络设备配置的PDCCH检测周期为2ms,那么会造成终端频繁地盲检测PDCCH,但是没有检测到授权信息(包括上行授权和下行授权)。这样,终端根据不合理配置进行PDCCH盲检测,不利于终端省电。
发明内容
本公开实施例提供了一种信道检测指示方法、终端及网络设备,以解决终端因不合理检测PDCCH导致的耗电问题。
第一方面,本公开实施例提供了一种信道检测指示方法,应用于终端侧,包括:
检测第一物理下行控制信道PDCCH;
若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH。
第二方面,本公开实施例还提供了一种终端,包括:
第一检测模块,用于检测第一物理下行控制信道PDCCH;
第二检测模块,用于若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH。
第三方面,本公开实施例提供了一种终端,终端包括处理器、存储器以及存储于存储器上并在处理器上运行的计算机程序,计算机程序被处理器执行时实现上述的信道检测指示方法的步骤。
第四方面,本公开实施例提供了一种信道检测指示方法,应用于网络设备侧,包括:
发送第一物理下行控制信道PDCCH,其中,第一PDCCH中承载有调度下行控制信息DCI,调度DCI用于指示终端是否检测第二PDCCH。
第五方面,本公开实施例提供了一种网络设备,包括:
第一发送模块,用于发送第一物理下行控制信道PDCCH,其中,第一PDCCH中承载有调度下行控制信息DCI,调度DCI用于指示终端是否检测第二PDCCH。
第六方面,本公开实施例还提供了一种网络设备,网络设备包括处理器、存储器以及存储于存储器上并在处理器上运行的计算机程序,处理器执行计算机程序时实现上述的信道检测指示方法的步骤。
第七方面,本公开实施例提供了一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,计算机程序被处理器执行时实现上述的信道检测指示方法的步骤。
这样,本公开实施例通过以上技术方案,通过调度DCI动态指示是否检测PDCCH,使得终端检测PDCCH更加灵活,可以避免不必要的PDCCH检测,有利于终端节电。
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例的描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1表示本公开实施例可应用的移动通信***框图;
图2表示本公开实施例提供的应用于终端侧的信道检测指示方法的流程示意图;
图3表示本公开实施例提供的终端的模块结构示意图;
图4表示本公开实施例提供的终端框图;
图5表示本公开实施例提供的应用于网络设备侧的信道检测指示方法的流程示意图;
图6表示本公开实施例提供的网络设备的模块结构示意图;
图7表示本公开实施例提供的网络设备框图。
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
本文所描述的技术不限于长期演进型(Long Time Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)***,并且也可用于各种无线通信***,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access, OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他***。术语“***”和“网络”常被可互换地使用。本文所描述的技术既可用于以上提及的***和无线电技术,也可用于其他***和无线电技术。然而,以下描述出于示例目的描述了新无线(New Radio,NR)***,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR***应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如,可以按不同于所描述的次序来执行所描述的方法,并且可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
请参见图1,图1示出本公开实施例可应用的无线通信***的框图。无线通信***包括终端11和网络设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant,PDA)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备,需要说明的是,在本公开实施例中并不限定终端11的具体类型。网络设备12可以是基站或核心网,其中,上述基站可以是5G及以后版本的基站(例如:gNB、5G NR NB等),或者其他通信***中的基站(例如:eNB、无线局域网(Wireless Local Area Network,WLAN)接入点、或其他接入点等),其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、无线保真(Wireless Fidelity,WiFi)节点或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本公开实施例中仅以NR***中的基站为例,但是并不限定基站的具体类型。
基站可在基站控制器的控制下与终端11通信,在各种示例中,基站控制 器可以是核心网或某些基站的一部分。一些基站可通过回程与核心网进行控制信息或用户数据的通信。在一些示例中,这些基站中的一些可以通过回程链路直接或间接地彼此通信,回程链路可以是有线或无线通信链路。无线通信***可支持多个载波(不同频率的波形信号)上的操作。多载波发射机能同时在这多个载波上传送经调制信号。例如,每条通信链路可以是根据各种无线电技术来调制的多载波信号。每个已调信号可在不同的载波上发送并且可携带控制信息(例如,参考信号、控制信道等)、开销信息、数据等。
基站可经由一个或多个接入点天线与终端11进行无线通信。每个基站可以为各自相应的覆盖区域提供通信覆盖。接入点的覆盖区域可被划分成仅构成该覆盖区域的一部分的扇区。无线通信***可包括不同类型的基站(例如宏基站、微基站、或微微基站)。基站也可利用不同的无线电技术,诸如蜂窝或WLAN无线电接入技术。基站可以与相同或不同的接入网或运营商部署相关联。不同基站的覆盖区域(包括相同或不同类型的基站的覆盖区域、利用相同或不同无线电技术的覆盖区域、或属于相同或不同接入网的覆盖区域)可以交叠。
无线通信***中的通信链路可包括用于承载上行链路(Uplink,UL)传输(例如,从终端11到网络设备12)的上行链路,或用于承载下行链路(Downlink,DL)传输(例如,从网络设备12到终端11)的下行链路。UL传输还可被称为反向链路传输,而DL传输还可被称为前向链路传输。
如图2所示,本公开实施例提供了一种信道检测指示方法,应用于终端侧,该方法包括以下步骤:
步骤21:检测第一物理下行控制信道PDCCH。
其中,第一PDCCH的监听参数是网络设备配置的,监听参数包括:监听周期、监听偏移值和监听持续时间中的至少一项。
步骤22:若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH。
上述调度(Scheduling)下行控制信息(Downlink Control Information,DCI)可以指示终端是否检测第二PDCCH,这样通过调度DCI动态指示终端的检测行为,可避免终端进行不必要的PDCCH检测,从而节省终端耗电。
其中,值得指出的是,上述第一PDCCH检测行为的确定方式可以与第二PDCCH检测行为的确定方式相同或不同,例如第一PDCCH的检测行为可根据上一个PDCCH中的调度DCI确定,或者,第一PDCCH的检测行为根据目标信令(如RRC信令)确定。
进一步地,在步骤21之后,该方法还包括:若从第一PDCCH中未接收到调度DCI,则根据接收到的目标信令,检测第二PDCCH;其中,目标信令与调度DCI不同,目标信令用于指示与第二PDCCH相关的检测参数。其中,与第二PDCCH相关的检测参数包括:检测周期、检测偏移值(offset)和检测持续时间(duration)中的至少一项。这里所说的目标信令包括但不限于:媒体接入控制(Medium Access Control,MAC)层控制单元(Control Element,CE)、RRC信令等。以RRC信令为例,终端根据RRC信令配置的搜索空间(search space)的监听参数来监听第二PDCCH。
其中,本公开实施例中的第二PDCCH与至少一种DCI格式(format)对应,和/或,第二PDCCH与至少一个搜索空间对应。其中,DCI格式包括但不限于以下表1中示出的格式:
表1
其中,DCI format0_0,0_1,1_0,1_1为调度DCI,其他为非调度DCI。
进一步地,***支持但不限于以下不同类型的PDCCH搜索空间(Search space):
1、Type0-PDCCH公共搜索空间,这类搜索空间是为剩余最小***信息(Remaining Minimum System Information,RMSI)对应的PDCCH定义的。在该类搜索空间检测到的PDCCH中承载的下行控制信息(Downlink Control Information,DCI)格式(format)携带有主小区(Primary Cell,Pcell)对应的***信息的无线网络临时标识(System Information Radio Network Temporary Identity,SI-RNTI)加扰(scrambled)的循环冗余校验(Cyclic Redundancy Check,CRC)。
2、Type0A-PDCCH公共搜索空间,这类搜索空间是为其他***信息(Other System Information,OSI)对应的PDCCH定义的。在该类搜索空间检测到的PDCCH中承载的DCI format携带有主小区Pcell对应的SI-RNTI加扰的CRC。
3、Type1-PDCCH公共搜索空间,这类搜索空间是为普通PDCCH(或称为正常PDCCH)定义的。在该类搜索空间检测到的PDCCH中承载的DCI format携带有主小区Pcell对应的随机接入的无线网络临时标识(Radom Access Radio Network Temporary Identity,RA-RNTI)、临时小区的无线网络临时标识(Temporary Cell Radio Network Temporary Identity,TC-RNTI)或小区的无线网络临时标识(Cell Radio Network Temporary Identity,C-RNTI)加扰的CRC。
4、Type2-PDCCH公共搜索空间,在该类搜索空间检测到的PDCCH中 承载的DCI format携带有主小区Pcell对应的寻呼无线网络临时标识(Paging Radio Network Temporary Identity,P-RNTI)加扰的CRC。
5、Type3-PDCCH公共搜索空间,在该类搜索空间检测到的PDCCH中承载的DCI format携带有中断传输的无线网络临时标识(Interruptted Transmission Radio Network Temporary Identity,INT-RNTI)、时隙格式指示的无线网络临时标识(Slot Format Indicator-Radio Network Temporary Identity,SFI-RNTI)、PUSCH传输功率控制(Transmit Power Control,TPC)的无线网络临时标识(TPC of PUSCH Radio Network Temporary Identity,TPC-PUSCH-RNTI)、PUCCH的TPC的无线网络临时标识(TPC of PUCCH Radio Network Temporary Identity,TPC-PUCCH-RNTI)、C-RNTI、配置调度的无线网络临时标识(Configured Scheduling-Radio Network Temporary Identity,CS-RNTI)或半持续的无线网络临时标识(SemiPersistent-Radio Network Temporary Identity,SP-RNTI)加扰的CRC。
6、终端专用搜索空间(UE-specific search space),在该搜索空间检测到的PDCCH中承载的DCI format携带有C-RNTI、CS-RNTI或SP-RNTI加扰的CRC。
本公开实施例的第二PDCCH与以上搜索空间中的至少一个相对应。
其中,本公开实施例中的调度DCI包括用于指示以下监听行为中的至少一项的指示域:
监听行为1、在第一传输时间内不检测第二PDCCH;其中,指示域包括用于指示终端在第一传输时间内不检测第二PDCCH的指示比特。其中,第一传输时间为:N个时域传输单元、N个第二PDCCH监听(monitoring)周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。以slot为例,调度DCI包括用于指示后续N个slot、N个PDCCH监听周期或者N个属于PDCCH监听周期内的监听slot内不检测第二PDCCH的指示域。另外,该指示域还可指示后续N个slot、N个PDCCH监听周期或者N个属于PDCCH监听周期内的监听slot内网络设备不发送第二PDCCH,这样间接指示终端在此期间也无需进行第二PDCCH的检测。
监听行为2、在第二传输时间内是否检测第二PDCCH;其中,指示域包括用于指示在第二传输时间内是否检测第二PDCCH的指示比特。例如指示域中的指示比特形成位图(bitmap),位图中每个比特的所在位置代表不同时域传输单元、不同监听(monitoring)周期或监听周期内的不同监听时域传输单元的位置。例如,5比特的bitmap,第一个比特代表第二传输时间内的第一个slot,第二个比特代表第二传输时间内的第二个slot,以此类推。假设该指示域包括N个bit形成的位图,第二传输时间为:N个时域传输单元、N个第二PDCCH监听(monitoring)周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。位图中比特的值为“1”用于指示在该比特对应的时域传输单元上需要检测第二PDCCH,为“0”用于指示在该比特对应的时域传输单元上不需要检测第二PDCCH;或者反之。值得指出的是,第一传输时间对应的N值可以与第二传输时间对应的N值相同,亦可以不同,本实施例对此并不做具体限定。
监听行为3、与第二PDCCH相关的检测参数;其中,与第二PDCCH相关的检测参数包括:检测周期、检测偏移值和检测持续时间中的至少一项。例如,指示域包括2bit,00指示检测周期为5个slot,01指示检测周期为10个slot,10指示检测周期为20个slot,11代表其他用途。
进一步地,指示域用于指示:与第二PDCCH相关的检测参数为检测参数候选集合中的一项,检测参数候选集合是网络设备通过无线资源控制RRC信令指示的。即网络设备通过无线资源控制RRC信令指示检测参数候选集合,该检测参数候选集合包括至少一项与第二PDCCH相关的检测参数,指示域用于指示检测参数候选集合中的一项。例如网络设备通过RRC信令配置有检测参数1(如检测周期为5个slot)、检测参数2(如检测周期为10个slot)和检测参数3(如检测周期为15个slot)可选,调度DCI中的指示域用于指示选择哪个检测参数,即选择检测参数1、2和3中的一项。
监听行为4、连接态非连续接收(Connected Discontinuous Reception,CDRX)参数;其中,CDRX参数包括:CDRX的周期、CDRX的偏移值和CDRX的激活期(或称为激活定时器onduration timer)中的至少一项。
进一步地,与上述检测参数的指示方式类似,指示域用于指示:CDRX参数是CDRX参数候选集合中的一项,CDRX参数候选集合是网络设备通过无线资源控制RRC信令指示。即网络设备通过无线资源控制RRC信令指示CDRX参数候选集合,该CDRX参数候选集合包括至少一项CDRX参数,指示域用于指示CDRX参数候选集合中的一项。例如网络设备通过RRC信令配置有CDRX参数1(如DRX周期为160ms)、CDRX参数2(如DRX周期为320ms)和CDRX参数3(如DRX周期为1280ms)。可选地,调度DCI中的指示域用于指示选择哪个CDRX参数,即选择CDRX参数1、2和3中的一项。
监听行为5、根据接收到的目标信令来检测第二PDCCH,其中,述目标信令与调度DCI不同,目标信令用于指示与第二PDCCH相关的检测参数。与上述目标信令相同,该目标信令可以包括但不限于:MAC层CE、RRC信令等。以RRC信令为例,终端根据RRC信令配置的搜索空间(search space)的监听参数来监听第二PDCCH。
其中,本实施例中调度DCI中的指示域可以包括专用指示字段,或者,指示域包括以下字段中的至少一项:时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段。也就是说,用于指示与第二PDCCH相关的监听行为的调度DCI可以增加专用指示域,亦可以重用已有调度DCI格式中部分字段。另外值得指出的是,调度DCI中的指示域可单独指示上述监听行为1至5中的任一种,亦可通过指示域中不同比特的不同取值指示上述监听行为1至5中的组合。
以在调度DCI中增加专用指示字段为例,网络设备通过DCI里面的新增字段(例如4bits)指示终端在后续N个slot、N个第二PDCCH监听周期或N个属于第二PDCCH监听周期内的监听slot上不需要监听第二PDCCH。第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,4bit字段可以只用于指示N的值,而不指示其他信息。另外,这4bit字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,4bit中的1bit用于指示哪种DCI format,如上下行;其余3bit用于指示N的值。或者,4bit中的2bit用于指示哪种DCI format, 如上下行回退或非回退DCI等共4种格式;其余2bit用于指示N的值。
下面以重用调度DCI格式中部分字段为例对指示监听行为进行示例性说明,指示单独监听行为或其他监听行为组合与之类似,本实施例不在赘述。
示例一、通过调度DCI格式中时域资源分配(Time domain resource assignment)字段指示:终端在后续N个slot、N个第二PDCCH监听周期或N个属于第二PDCCH监听周期内的监听slot上不需要监听第二PDCCH。
1)针对第一PDCCH为DCI format 1_0或者DCI format 1_1
网络设备通过RRC信令将终端的PDSCH的时域资源分配列表(PDSCH-TimeDomainResourceAllocationList)参数(在pdsch-Config里面)配置成只有一个实体(entity)。终端根据上述entity确定时域调度信息,如确定以下参数中的至少一项:K0、mappingType、startSymbolAndLength,这样就无需要再依靠调度DCI里面的Time domain resource assignment字段确定时域调度信息。网络设备通过调度DCI格式中的Time domain resource assignment字段(例如4bits)指示终端在后续N个slot或N个PDCCH监听周期上不需要监听PDCCH。
值得指出的是,上述第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,4bit字段可以只用于指示N的值,而不指示其他信息。另外,这4bit字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,4bit中的1bit用于指示哪种DCI format,如上下行;其余3bit用于指示N的值。或者,4bit中的2bit用于指示哪种DCI format,如上下行回退或非回退DCI等共4种格式;其余2bit用于指示N的值。
2)针对第一PDCCH为DCI format 0_0或DCI format 0_1
网络设备通过RRC信令将终端的PUSCH的时域资源分配列表(PUSCH-TimeDomainResourceAllocationList)参数(在pusch-Config里面)配置成只有一个实体(entity)。终端根据上述entity确定时域调度信息,如确定以下参数中的至少一项:K2、mappingType、startSymbolAndLength,这样就无需要再依靠调度DCI里面的Time domain resource assignment字段确定PUSCH的时域调度信息。网络设备通过调度DCI格式中的Time domain resource assignment字段(例如4bits)指示终端在后续N个slot或N个PDCCH监听周期上不需要监听PDCCH。
值得指出的是,上述第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,4bit字段可以只用于指示N的值,而不指示其他信息。另外,这4bit字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,4bit中的1bit用于指示哪种DCI format,如上下行;其余3bit用于指示N的值。或者,4bit中的2bit用于指示哪种DCI format,如上下行回退或非回退DCI等共4种格式;其余2bit用于指示N的值。
示例二、通过调度DCI格式中载波指示(Carrier indicator)字段指示:终端在后续N个slot、N个第二PDCCH监听周期或N个属于第二PDCCH监听周期内的监听slot上不需要监听第二PDCCH。
网络设备通过调度DCI格式中的Carrier indicator字段(例如3bits)指示后续N个slot、N个PDCCH监听周期或N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。其中,该第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,3bit字段可以只用于指示N的值,而不指示其他信息。另外,这3bit字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,3bit中的1bit用于指示哪种DCI format,如上下行;其余2bit用于指示N的值。或者,3bit中的2bit用于指示哪种DCI format,如上下行回退或非回退DCI等共4种格式;其余1bit用于指示N的值。
值得指出的是,终端在没有配置跨载波调度的时候支持上述方案。
示例三、通过调度DCI格式中带宽部分指示(Bandwidth part indicator)字段指示终端在后续N个slot、N个PDCCH监听周期或者N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。
通过调度DCI格式中带宽部分指示(Bandwidth part indicator)字段(例如2bits)指示后续N个slot、N个PDCCH监听周期或者N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。其中,该第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的 PDCCH,2bits字段可以只用于指示N的值,而不指示其他信息。另外,这2bits字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,2bits中的1bit用于指示哪种DCI format,如上下行;其余1bit用于指示N的值。
值得指出的是,终端在没有配置跨BWP调度的时候支持上述方案。
示例四、通过调度DCI格式中PDSCH的混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)反馈定时指示(PDSCH-to-HARQ_feedback timing indicator)字段指示终端在后续N个slot、N个PDCCH监听周期或者N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。
值得指出的是,当第一PDCCH为DCI format 1_0或者DCI format 1_1的PDCCH时,网络设备可以通过第一PDCCH中的PDSCH-to-HARQ_feedback timing indicator字段(例如3bits)指示后续N个slot、N个PDCCH监听周期或N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。其中,该第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,3bit字段可以只用于指示N的值,而不指示其他信息。另外,这3bit字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,3bit中的1bit用于指示哪种DCI format,如上下行;其余2bit用于指示N的值。或者,3bit中的2bit用于指示哪种DCI format,如上下行回退或非回退DCI等共4种格式;其余1bit用于指示N的值。
其中值得指出的是,网络设备可以通过RRC信令半静态指示PDSCH-to-HARQ_feedback timing indicator的值。
示例五、通过时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段中的至少两项联合指示终端在后续N个slot、N个PDCCH监听周期或者N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。
当第一PDCCH为DCI format 0_0或者DCI format 0_1的PDCCH时,网络设备通过时域资源分配字段、载波指示字段和带宽部分指示字段中的至少两项(6bits)联合指示后续N个slot、N个PDCCH监听周期或N个属于 PDCCH监听周期内的监听slot不需要监听第二PDCCH。其中,该第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,6bits字段可以只用于指示N的值,而不指示其他信息。另外,这6bits字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,6bits中的1bit用于指示哪种DCI format,如上下行;其余5bits用于指示N的值。或者,6bits中的2bits用于指示哪种DCI format,如上下行回退或非回退DCI等共4种格式;其余4bits用于指示N的值。
当第一PDCCH为DCI format 1_0或者DCI format 1_1的PDCCH时,网络设备通过时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段中的至少两项(6bits)联合指示后续N个slot、N个PDCCH监听周期或N个属于PDCCH监听周期内的监听slot不需要监听第二PDCCH。其中,该第二PDCCH为传输DCI format 0_0、DCI format 0_1、DCI format 1_0和/或DCI format 1_1的PDCCH,6bits字段可以只用于指示N的值,而不指示其他信息。另外,这6bits字段还可以在指示N的值之外,还可进一步指示针对哪种DCI format的第二PDCCH。例如,6bits中的1bit用于指示哪种DCI format,如上下行;其余5bits用于指示N的值。或者,6bits中的2bits用于指示哪种DCI format,如上下行回退或非回退DCI等共4种格式;其余4bits用于指示N的值。
以上是指示域的指示字段仅指示一种监听行为(以监听行为1为例)的场景,此外,网络设备还可通过指示域的指示字段同时指示多种监听行为的组合(例如监听行为1和4的组合)。以时域资源分配字段包括4bit为例,4bit值为“0000”时指示终端根据接收到的目标信令来检测第二PDCCH;其他值用于指示N的值。值得指出的是其他指示字段指示多种监听行为的组合与之类似,本公开实施例不再一一列举。
另外,值得指出的是,本公开实施例的调度DCI对于R16及以后版本的终端可见(调度DCI中新增专用指示字段或重新定义已有字段的含义)。终端在接收到上述指示PDCCH监听行为的调度DCI后,无需向网络设备上报应答ACK信息;在未接收到该调度DCI后,亦无需向网络设备上报非应答 NACK信息。
进一步地,当调度DCI的指示域指示监听行为1时,步骤22之后,还包括:在第一传输时间之后,根据接收到的目标信令,检测第二PDCCH。例如,终端在调度DCI指示的N个slot、N个PDCCH监听周期或N个属于PDCCH监听周期内的监听slot之后,按照网络设备配置(如RRC信令配置)的search space的监听参数来监听第二PDCCH。值得指出的是,若在检测到第一PDCCH之后(包括第一传输时间内)检测到了第二PDCCH,且第二PDCCH中携带有调度DCI,终端则按照第二PDCCH中的调度DCI进行后续PDCCH的监听。若未检测到第二PDCCH或未从第二PDCCH中检测到新的调度DCI,那么终端根据接收到的目标信令,进行后续PDCCH的检测。
进一步地,当调度DCI的指示域指示监听行为1和/或2时,步骤21之前,还包括:向网络设备发送上报信息;其中,该上报信息用于指示在第一传输时间内不检测第二PDCCH,或在第二传输时间内是否检测第二PDCCH。即终端根据自身调度需求向网络设备发送上报信息,当没有调度需求时上报指示在第一传输时间内不检测第二PDCCH的上报信息,或根据业务的调度需求上报指示在第二传输时间内是否检测第二PDCCH的上报信息。网络设备可参考该上报信息生成调度DCI,以指示终端后续的监听行为。
本公开实施例中,步骤22的起始时间,即调度DCI中指示终端监听行为的指示域的生效时间为以下中的一项:
调度DCI所在slot的下一个slot,即终端收到调度DCI后的下一个slot。
调度DCI所在slot后间隔时间间隔gap之后的slot,其中,该gap是预定义的或网络设备配置的,即在接收到调度DCI和指示域生效之间存在一个gap,在该gap内终端按照之前的监听行为规则进行PDCCH的检测。
调度DCI所调度的物理下行共享信道PDSCH的应答ACK信息所在slot之后第M个slot,M为正整数。
调度DCI所调度的物理上行共享信道PUSCH所在slot之后的第L个slot,L为正整数。其中,L和M的值可以是预定义的,也可是网络设备配置的。
对于传输失败场景,在第一PDCCH所调度的数据信道初传或重传失败的情况下,以PDSCH为例,若终端解调初传或重传的PDSCH失败,终端上 报NACK。终端在成功接收到指示监听行为(如监听行为1)的调度DCI后,终端直接按照调度DCI的指示在第一传输时间内不进行PDCCH的监听。那么终端在第一传输时间过去后再检测用于PDSCH重传调度的第三PDCCH。以PUSCH为例,若初传或重传的PUSCH发送失败,终端在成功接收到指示监听行为(如监听行为1)的调度DCI后,终端直接按照调度DCI的指示在第一传输时间内不进行PDCCH的监听。那么终端在第一传输时间过去后再检测用于PUSCH重传调度的第三PDCCH。
为了降低重传时延,步骤22的具体实现可参照但不限于以下方式:在第一PDCCH所调度的数据信道初传或重传失败的情况下,根据调度DCI,确定是否在目标资源上检测第二PDCCH。其中,目标资源是除调度数据信道重传的第三PDCCH所在时域之外的时域资源。第三PDCCH用于数据信道重传的调度。进一步地,在传输失败场景下,该方法还包括:,在第一PDCCH所调度的数据信道初传或重传失败的情况下,在第三PDCCH所在时域资源上,检测第三PDCCH。以PDSCH为例,若终端解调初传或重传的PDSCH失败,终端上报NACK。终端在成功接收到指示监听行为(如监听行为1)的调度DCI后,终端在第一传输时间内除第三PDCCH(用于PDSCH重传调度)所在时域资源之外的资源上,按照调度DCI的指示不进行PDCCH的监听。以PUSCH为例,若初传或重传的PUSCH发送失败,终端在成功接收到指示监听行为(如监听行为1)的调度DCI后,终端在第一传输时间内除第三PDCCH(用于PUSCH重传调度)所在时域资源之外的资源上,按照调度DCI的指示不进行PDCCH的监听。
本公开实施例的信道检测指示方法中,终端通过调度DCI动态指示是否检测PDCCH,使得终端检测PDCCH更加灵活,可避免不必要的PDCCH检测,有利于终端节电。
以上实施例介绍了不同场景下的信道检测指示方法,下面将结合附图对与其对应的终端做进一步介绍。
如图3所示,本公开实施例的终端300,能实现上述实施例中检测第一物理下行控制信道PDCCH;若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH方法的细节,并达到相同 的效果,该终端300具体包括以下功能模块:
第一检测模块310,用于检测第一物理下行控制信道PDCCH;
第二检测模块320,用于若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH。
其中,终端300还包括:
第三检测模块,用于若从第一PDCCH中未接收到调度DCI,则根据接收到的目标信令,检测第二PDCCH;其中,目标信令与调度DCI不同,目标信令用于指示与第二PDCCH相关的检测参数。
其中,调度DCI包括用于指示以下中至少一项的指示域:
在第一传输时间内不检测第二PDCCH;
在第二传输时间内是否检测第二PDCCH;
与第二PDCCH相关的检测参数;
连接态非连续接收CDRX参数;
根据接收到的目标信令来检测第二PDCCH,其中,目标信令与调度DCI不同,目标信令用于指示与第二PDCCH相关的检测参数。
其中,指示域包括专用指示字段,或者,指示域包括以下字段中的至少一项:
时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段。
其中,第二PDCCH与至少一种DCI格式对应,和/或,第二PDCCH与至少一个搜索空间对应。
其中,CDRX参数包括:CDRX的周期、CDRX的偏移值和CDRX的激活期中的至少一项。
其中,指示域用于指示:与第二PDCCH相关的检测参数为检测参数候选集合中的一项,检测参数候选集合是网络设备通过无线资源控制RRC信令指示的。
其中,指示域用于指示:CDRX参数是CDRX参数候选集合中的一项,CDRX参数候选集合是网络设备通过无线资源控制RRC信令指示。
其中,终端300还包括:
第四检测模块,用于在第一传输时间之后,根据接收到的目标信令,检测第二PDCCH。
其中,第一传输时间或第二传输时间为:N个时域传输单元、N个第二PDCCH监听周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。
其中,终端300还包括:
上报模块,用于向网络设备发送上报信息;其中,上报信息用于指示在第一传输时间内不检测第二PDCCH,或在第二传输时间内是否检测第二PDCCH。
其中,与第二PDCCH相关的检测参数包括:检测周期、检测偏移值和检测持续时间中的至少一项。
其中,根据调度DCI,确定是否检测第二PDCCH步骤的起始时间为以下中的一项:
调度DCI所在slot的下一个slot;
调度DCI所在slot后间隔时间间隔gap之后的slot,其中,gap是预定义的或网络设备配置的;
调度DCI所调度的物理下行共享信道PDSCH的应答ACK信息所在slot之后第M个slot,M为正整数;
调度DCI所调度的物理上行共享信道PUSCH所在slot之后的第L个slot,L为正整数。
其中,第二检测模块320包括:
第一检测子模块,用于在第一PDCCH所调度的数据信道初传或重传失败的情况下,根据调度DCI,确定是否在目标资源上检测第二PDCCH;其中,目标资源是除调度数据信道重传的第三PDCCH所在时域之外的时域资源。
其中,终端300还包括:
第五检测模块,用于在第一PDCCH所调度的数据信道初传或重传失败的情况下,确定在第三PDCCH所在时域资源上,检测第三PDCCH。
其中,第一PDCCH的监听参数是网络设备配置的;监听参数包括:监 听周期、监听偏移值和监听持续时间中的至少一项。
需要说明的是,以上终端的各个功能模块在实际实现时,可以全部或部分集成到一个物理实体上,也可以物理上分开。例如上述第一检测模块310、第二检测模块320、第三检测模块、第四检测模块和第五检测模块可以为单独设立的收发元件,也可以集成在一个收发机中。值得指出的是,其它模块的实现与之类似,在实现过程中,上述各个模块均可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
值得指出的是,本公开实施例的终端通过调度DCI动态指示是否检测PDCCH,使得终端检测PDCCH更加灵活,可避免不必要的PDCCH检测,有利于终端节电。
为了更好的实现上述目的,进一步地,图4为实现本公开各个实施例的一种终端的硬件结构示意图,该终端40包括但不限于:射频单元41、网络模块42、音频输出单元43、输入单元44、传感器45、显示单元46、用户输入单元47、接口单元48、存储器49、处理器410、以及电源411等部件。本领域技术人员可以理解,图4中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。在本公开实施例中,终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中,射频单元41,用于在处理器410的控制下收发数据,具体用于:检测第一物理下行控制信道PDCCH;第二检测模块,用于若从第一PDCCH中接收到调度下行控制信息DCI,则根据调度DCI,确定是否检测第二PDCCH4;
本公开实施例的终端通过调度DCI动态指示是否检测PDCCH,使得终端检测PDCCH更加灵活,避免不必要的PDCCH检测,有利于终端节电。
应理解的是,本公开实施例中,射频单元41可用于收发信息或通话过程中,信号的接收和发送,具体的,将来自基站的下行数据接收后,给处理器410处理;另外,将上行的数据发送给基站。通常,射频单元41包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元41还可以通过无线通信***与网络和其他设备通信。
终端通过网络模块42为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元43可以将射频单元41或网络模块42接收的或者在存储器49中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元43还可以提供与终端40执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元43包括扬声器、蜂鸣器以及受话器等。
输入单元44用于接收音频或视频信号。输入单元44可以包括图形处理器(Graphics Processing Unit,GPU)441和麦克风442,图形处理器441对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元46上。经图形处理器441处理后的图像帧可以存储在存储器49(或其它存储介质)中或者经由射频单元41或网络模块42进行发送。麦克风442可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元41发送到移动通信基站的格式输出。
终端40还包括至少一种传感器45,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板461的亮度,接近传感器可在终端40移动到耳边时,关闭显示面板461和/或背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器45还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等,在此不再赘述。
显示单元46用于显示由用户输入的信息或提供给用户的信息。显示单元46可包括显示面板461,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板461。
用户输入单元47可用于接收输入的数字或字符信息,以及产生与终端的 用户设置以及功能控制有关的键信号输入。具体地,用户输入单元47包括触控面板471以及其他输入设备472。触控面板471,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板471上或在触控面板471附近的操作)。触控面板471可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器410,接收处理器410发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板471。除了触控面板471,用户输入单元47还可以包括其他输入设备472。具体地,其他输入设备472可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
进一步的,触控面板471可覆盖在显示面板461上,当触控面板471检测到在其上或附近的触摸操作后,传送给处理器410以确定触摸事件的类型,随后处理器410根据触摸事件的类型在显示面板461上提供相应的视觉输出。虽然在图4中,触控面板471与显示面板461是作为两个独立的部件来实现终端的输入和输出功能,但是在某些实施例中,可以将触控面板471与显示面板461集成而实现终端的输入和输出功能,具体此处不做限定。
接口单元48为外部装置与终端40连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元48可以用于接收来自外部装置的输入(例如,数据信息、电力等等)并且将接收到的输入传输到终端40内的一个或多个元件或者可以用于在终端40和外部装置之间传输数据。
存储器49可用于存储软件程序以及各种数据。存储器49可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作***、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器49可以包括高速随机存取存储器,还可以包括非易失性存储器,例如 至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器410是终端的控制中心,利用各种接口和线路连接整个终端的各个部分,通过运行或执行存储在存储器49内的软件程序和/或模块,以及调用存储在存储器49内的数据,执行终端的各种功能和处理数据,从而对终端进行整体监控。处理器410可包括一个或多个处理单元;可选的,处理器410可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作***、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器410中。
终端40还可以包括给各个部件供电的电源411(比如电池),可选的,电源411可以通过电源管理***与处理器410逻辑相连,从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。
另外,终端40包括一些未示出的功能模块,在此不再赘述。
可选的,本公开实施例还提供一种终端,包括处理器410,存储器49,存储在存储器49上并可在所述处理器410上运行的计算机程序,该计算机程序被处理器410执行时实现上述信道检测指示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,终端可以是无线终端也可以是有线终端,无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,无线终端可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端也可以称为***、订户单元(Subscriber Unit)、订户站(Subscriber Station),移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment),在此不作限定。
本公开实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述信道检测指示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
以上实施例从终端侧介绍了本公开的信道检测指示方法,下面本实施例将结合附图对网络设备侧的信道检测指示方法做进一步介绍。
如图5所示,本公开实施例的信道检测指示方法,应用于网络设备,该方法包括以下步骤:
步骤51:发送第一物理下行控制信道PDCCH,其中,第一PDCCH中承载有调度下行控制信息DCI,调度DCI用于指示终端是否检测第二PDCCH。
其中,第一PDCCH的监听参数是网络设备配置的,监听参数包括:监听周期、监听偏移值和监听持续时间中的至少一项。这样通过调度DCI动态指示终端的检测行为,可避免终端进行不必要的PDCCH检测,从而节省终端耗电。其中,本公开实施例中的第二PDCCH与至少一种DCI格式对应,和/或,第二PDCCH与至少一个搜索空间对应。例如第二PDCCH与调度DCI格式中的至少一种对应、或者与非调度DCI格式中的至少一种对应、或者与调度DCI格式和非调度DCI格式中的至少一种对应。
其中,本公开实施例中的调度DCI包括用于指示以下监听行为中的至少一项的指示域:
在第一传输时间内不检测第二PDCCH;其中,第一传输时间为:N个时域传输单元、N个第二PDCCH监听(monitoring)周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。该场景对应于上述监听行为1,故在此不在赘述。
在第二传输时间内是否检测第二PDCCH;其中,第二传输时间为:N个时域传输单元、N个第二PDCCH监听(monitoring)周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,时域传输单元包括:时隙slot、 微时隙mini-slot、毫秒或时域符号,N为正整数。该场景对应于上述监听行为2,故在此不在赘述。
与第二PDCCH相关的检测参数;检测参数包括:检测周期、检测偏移值和检测持续时间中的至少一项。例如,指示域包括2bit,00指示检测周期为5个slot,01指示检测周期为10个slot,10指示检测周期为20个slot,11代表其他用途。其中,网络设备还可通过无线资源控制RRC信令指示检测参数候选集合,检测参数候选集合包括至少一项与第二PDCCH相关的检测参数,指示域用于指示检测参数候选集合中的一项。该场景对应于上述监听行为3,故在此不在赘述。
连接态非连续接收CDRX参数;CDRX参数包括:CDRX的周期、CDRX的偏移值和CDRX的激活期中的至少一项。网络设备还可通过无线资源控制RRC信令指示CDRX参数候选集合,CDRX参数候选集合包括至少一项CDRX参数,指示域用于指示CDRX参数候选集合中的一项。该场景对应于上述监听行为4,故在此不在赘述。
根据接收到的目标信令来检测所述第二PDCCH,其中,目标信令与调度DCI不同,目标信令用于指示与第二PDCCH相关的检测参数。该场景对应于上述监听行为5,故在此不在赘述。
其中,本实施例中调度DCI中的指示域可以包括专用指示字段,或者,指示域包括以下字段中的至少一项:时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段。值得指出的是,调度DCI中的指示域可单独指示上述监听行为1至5中的任一种,亦可通过指示域中不同比特的不同取值指示上述监听行为1至5中的组合。其中,调度DCI中增加专用指示字段或重用已有的部分字段的示例与终端侧相关实施例类似,故在此不再赘述。
进一步地,当调度DCI的指示域指示监听行为1时,步骤51之前还包括:接收上报信息;其中,上报信息用于指示在第一传输时间内不检测第二PDCCH,或在第二传输时间内是否检测第二PDCCH。网络设备可参考该上报信息生成调度DCI,以指示终端后续的监听行为。
本公开实施例中,调度DCI中指示终端是否检测第二PDCCH的字段的 生效起始时间为以下中的一项:
调度DCI所在slot的下一个slot,即终端收到调度DCI后的下一个slot;
调度DCI所在slot后间隔时间间隔gap之后的slot,其中,该gap是预定义的或网络设备配置的,即在接收到调度DCI和指示域生效之间存在一个gap,在该gap内终端按照之前的监听行为规则进行PDCCH的检测;
调度DCI所调度的物理下行共享信道PDSCH的应答ACK信息所在slot之后第M个slot,M为正整数;
调度DCI所调度的物理上行共享信道PUSCH所在slot之后的第L个slot,L为正整数。值得指出的是,L和M的值可以是预定义的,也可是网络设备配置的。
其中对于传输失败场景,步骤51之后还包括:在第一PDCCH所调度的数据信道初传或重传失败的情况下,根据调度DCI,确定是否在目标资源上发送第二PDCCH;其中,目标资源是除调度数据信道重传的第三PDCCH所在时域资源之外的时域资源。
为了降低重传时延,该方法还包括:在第一PDCCH所调度的数据信道初传或重传失败的情况下,在第三PDCCH所在时域资源上发送第三PDCCH。以PDSCH为例,若终端解调初传或重传的PDSCH失败,终端上报NACK。终端在成功接收到指示监听行为(如监听行为1)的调度DCI后,终端在第一传输时间内除第三PDCCH(用于PDSCH重传调度)所在时域资源之外的资源上,按照调度DCI的指示不进行PDCCH的监听。以PUSCH为例,若初传或重传的PUSCH发送失败,终端在成功接收到指示监听行为(如监听行为1)的调度DCI后,终端在第一传输时间内除第三PDCCH(用于PUSCH重传调度)所在时域资源之外的资源上,按照调度DCI的指示不进行PDCCH的监听。
本公开实施例的信道检测指示方法中,网络设备向终端发送承载有调度DCI的PDCCH,该调度DCI用于指示终端是否检测第二PDCCH,终端根据调度DCI动态的指示,确定是否检测PDCCH,使得终端检测PDCCH更加灵活,避免不必要的PDCCH检测,有利于终端节电。
以上实施例分别详细介绍了不同场景下的信道检测指示方法,下面本实 施例将结合附图对其对应的网络设备做进一步介绍。
如图6所示,本公开实施例的网络设备600,能实现上述实施例中发送第一物理下行控制信道PDCCH,其中,第一PDCCH中承载有调度下行控制信息DCI,调度DCI用于指示终端是否检测第二PDCCH方法的细节,并达到相同的效果,该网络设备600具体包括以下功能模块:
第一发送模块610,用于发送第一物理下行控制信道PDCCH,其中,第一PDCCH中承载有调度下行控制信息DCI,调度DCI用于指示终端是否检测第二PDCCH。
其中,调度DCI包括用于指示以下中至少一项的指示域:
在第一传输时间内不检测第二PDCCH;
在第二传输时间内是否检测第二PDCCH;
与第二PDCCH相关的检测参数;
连接态非连续接收CDRX参数;
根据接收到的目标信令来检测第二PDCCH,其中,目标信令与调度DCI不同,目标信令用于指示与第二PDCCH相关的检测参数。
其中,指示域包括专用指示字段,或者,指示域包括以下字段中的至少一项:
时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段。
其中,第二PDCCH与至少一种DCI格式对应,和/或,第二PDCCH与至少一个搜索空间对应。
其中,CDRX参数包括:CDRX的周期、CDRX的偏移值和CDRX的激活期中的至少一项。
其中,网络设备通过无线资源控制RRC信令指示检测参数候选集合,检测参数候选集合包括至少一项与第二PDCCH相关的检测参数,指示域用于指示检测参数候选集合中的一项。
其中,网络设备通过无线资源控制RRC信令指示CDRX参数候选集合,CDRX参数候选集合包括至少一项CDRX参数,指示域用于指示CDRX参数候选集合中的一项。
其中,第一传输时间或第二传输时间为:N个时域传输单元、N个第二PDCCH监听周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。
其中,网络设备600还包括:
接收模块,用于接收上报信息;其中,上报信息用于指示在第一传输时间内不检测第二PDCCH,或在第二传输时间内是否检测第二PDCCH。
其中,与第二PDCCH相关的检测参数包括:检测周期、检测偏移值和检测持续时间中的至少一项。
其中,调度DCI中指示终端是否检测第二PDCCH的字段的生效起始时间为以下中的一项:
调度DCI所在slot的下一个slot;
调度DCI所在slot后间隔时间间隔gap之后的slot,其中,gap是预定义的或网络设备配置的;
调度DCI所调度的物理下行共享信道PDSCH的应答ACK信息所在slot之后第M个slot,M为正整数;
调度DCI所调度的物理上行共享信道PUSCH所在slot之后的第L个slot,L为正整数。
其中,网络设备600包括:
第二发送模块,用于在第一PDCCH所调度的数据信道初传或重传失败的情况下,根据调度DCI,确定是否在目标资源上发送第二PDCCH;其中,目标资源是除调度数据信道重传的第三PDCCH所在时域资源之外的时域资源。
其中,网络设备600还包括:
第三发送模块,用于在第一PDCCH所调度的数据信道初传或重传失败的情况下,在第三PDCCH所在时域资源上发送第三PDCCH。
其中,网络设备600还包括:
配置模块,用于为第一PDCCH配置监听参数;监听参数包括:监听周期、监听偏移值和监听持续时间中的至少一项。
需要说明的是,以上网络设备的各个功能模块在实际实现时,可以全部或部分集成到一个物理实体上,也可以物理上分开。例如上述第一发送模块610和第二发送模块可以为单独设立的收发元件,也可以集成在一个收发机中。值得指出的是,其它模块的实现与之类似,在实现过程中,上述各个模块均可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
也就是说,应理解以上网络设备和终端的各个模块的划分仅仅是一种逻辑功能的划分,实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现;也可以全部以硬件的形式实现;还可以部分模块通过处理元件调用软件的形式实现,部分模块通过硬件的形式实现。例如,确定模块可以为单独设立的处理元件,也可以集成在上述装置的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述装置的存储器中,由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如,以上这些模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器,或一个或多个数字信号处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上***(system-on-a-chip,SOC)的形式实现。
值得指出的是,本公开实施例的网络设备向终端发送承载有调度DCI的PDCCH,该调度DCI用于指示终端是否检测第二PDCCH,终端根据调度DCI动态的指示,确定是否检测PDCCH,使得终端检测PDCCH更加灵活,避免不必要的PDCCH检测,有利于终端节电。
为了更好的实现上述目的,本公开的实施例还提供了一种网络设备,该网络设备包括处理器、存储器以及存储于存储器上并可在处理器上运行的计算机程序,处理器执行计算机程序时实现如上所述的信道检测指示方法中的步骤。公开实施例还提供了一种计算机可读存储介质,该计算机可读存储介质上存储有计算机程序,计算机程序被处理器执行时实现如上所述的信道检测指示方法的步骤。
具体地,本公开的实施例还提供了一种网络设备。如图7所示,该网络设备700包括:天线71、射频装置72、基带装置73。天线71与射频装置72连接。在上行方向上,射频装置72通过天线71接收信息,将接收的信息发送给基带装置73进行处理。在下行方向上,基带装置73对要发送的信息进行处理,并发送给射频装置72,射频装置72对收到的信息进行处理后经过天线71发送出去。
上述频带处理装置可以位于基带装置73中,以上实施例中网络设备执行的方法可以在基带装置73中实现,该基带装置73包括处理器74和存储器75。
基带装置73例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图7所示,其中一个芯片例如为处理器74,与存储器75连接,以调用存储器75中的程序,执行以上方法实施例中所示的网络设备操作。
该基带装置73还可以包括网络接口76,用于与射频装置72交互信息,该接口例如为通用公共无线接口(common public radio interface,CPRI)。
这里的处理器可以是一个处理器,也可以是多个处理元件的统称,例如,该处理器可以是CPU,也可以是ASIC,或者是被配置成实施以上网络设备所执行方法的一个或多个集成电路,例如:一个或多个微处理器,一个或多个DSP,或,一个或者多个现场可编程门阵列FPGA等。存储元件可以是一个存储器,也可以是多个存储元件的统称。
存储器75可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器 (Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请描述的存储器75旨在包括但不限于这些和任意其它适合类型的存储器。
具体地,本公开实施例的网络设备还包括:存储在存储器75上并可在处理器74上运行的计算机程序,处理器74调用存储器75中的计算机程序执行图6所示各模块执行的方法。
具体地,计算机程序被处理器74调用时可用于执行:发送第一物理下行控制信道PDCCH,其中,第一PDCCH中承载有调度下行控制信息DCI,调度DCI用于指示终端是否检测第二PDCCH。
本公开实施例中的网络设备,向终端发送承载有调度DCI的PDCCH,该调度DCI用于指示终端是否检测第二PDCCH,终端根据调度DCI动态的指示,确定是否检测PDCCH,使得终端检测PDCCH更加灵活,避免不必要的PDCCH检测,有利于终端节电。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的实施例中,应该理解到,所揭露的装置和方法,可以 通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
此外,需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行,某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言,能够理解本公开的方法和装置的全部或者任何步骤或者部件,可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中,以硬件、固件、软件或者它们的组合加以实现,这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编 程技能就能实现的。
因此,本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此,本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说,这样的程序产品也构成本公开,并且存储有这样的程序产品的存储介质也构成本公开。显然,所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
以上所述的是本公开的可选实施方式,应当指出对于本技术领域的普通人员来说,在不脱离本公开所述的原理前提下还可以作出若干改进和润饰,这些改进和润饰也在本公开的保护范围内。
Claims (35)
- 一种信道检测指示方法,应用于终端侧,包括:检测第一物理下行控制信道PDCCH;若从所述第一PDCCH中接收到调度下行控制信息DCI,则根据所述调度DCI,确定是否检测第二PDCCH。
- 根据权利要求1所述的信道检测指示方法,检测第一物理下行控制信道PDCCH的步骤之后,还包括:若从所述第一PDCCH中未接收到所述调度DCI,则根据接收到的目标信令,检测所述第二PDCCH;其中,所述目标信令与所述调度DCI不同,所述目标信令用于指示与所述第二PDCCH相关的检测参数。
- 根据权利要求1所述的信道检测指示方法,其中,所述第二PDCCH与至少一种DCI格式对应,和/或,所述第二PDCCH与至少一个搜索空间对应。
- 根据权利要求1所述的信道检测指示方法,其中,所述调度DCI包括用于以下中至少一项的指示域:在第一传输时间内不检测所述第二PDCCH;在第二传输时间内是否检测所述第二PDCCH;与所述第二PDCCH相关的检测参数;连接态非连续接收CDRX参数;根据接收到的目标信令来检测所述第二PDCCH,其中,所述目标信令与所述调度DCI不同,所述目标信令用于指示与所述第二PDCCH相关的检测参数。
- 根据权利要求4所述的信道检测指示方法,其中,所述指示域包括专用指示字段,或者,所述指示域包括以下字段中的至少一项:时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段。
- 根据权利要求4或5所述的信道检测指示方法,其中,所述CDRX参数包括:CDRX的周期、CDRX的偏移值和CDRX的激活期中的至少一项。
- 根据权利要求4所述的信道检测指示方法,其中,所述指示域用于指示:与所述第二PDCCH相关的检测参数为检测参数候选集合中的一项,所述检测参数候选集合是网络设备通过无线资源控制RRC信令指示的。
- 根据权利要求4所述的信道检测指示方法,其中,所述指示域用于指示:所述CDRX参数是所述CDRX参数候选集合中的一项,所述CDRX参数候选集合是网络设备通过无线资源控制RRC信令指示。
- 根据权利要求4所述的信道检测指示方法,根据所述调度DCI,确定是否检测第二PDCCH的步骤之后,还包括:在所述第一传输时间之后,根据接收到的所述目标信令,检测所述第二PDCCH。
- 根据权利要求4所述的信道检测指示方法,其中,所述第一传输时间或所述第二传输时间为:N个时域传输单元、N个第二PDCCH监听周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,所述时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。
- 根据权利要求4所述的信道检测指示方法,检测第一物理下行控制信道PDCCH的步骤之前,还包括:向网络设备发送上报信息;其中,所述上报信息用于指示在第一传输时间内不检测所述第二PDCCH,或在第二传输时间内是否检测所述第二PDCCH。
- 根据权利要求2或4所述的信道检测指示方法,其中,与所述第二PDCCH相关的检测参数包括:检测周期、检测偏移值和检测持续时间中的至少一项。
- 根据权利要求1所述的信道检测指示方法,其中,根据所述调度DCI,确定是否检测第二PDCCH步骤的起始时间为以下中的一项:所述调度DCI所在slot的下一个slot;所述调度DCI所在slot后间隔时间间隔gap之后的slot,其中,所述gap是预定义的或网络设备配置的;所述调度DCI所调度的物理下行共享信道PDSCH的应答ACK信息所在slot之后第M个slot,M为正整数;所述调度DCI所调度的物理上行共享信道PUSCH所在slot之后的第L个slot,L为正整数。
- 根据权利要求1所述的信道检测指示方法,其中,根据所述调度DCI,确定是否检测第二PDCCH的步骤包括:在所述第一PDCCH所调度的数据信道初传或重传失败的情况下,根据所述调度DCI,确定是否在目标资源上检测第二PDCCH;其中,所述目标资源是除调度所述数据信道重传的第三PDCCH所在时域之外的时域资源。
- 根据权利要求14所述的信道检测指示方法,其中,在所述第一PDCCH所调度的数据信道初传或重传失败的情况下,所述方法还包括:在所述第三PDCCH所在时域资源上,检测所述第三PDCCH。
- 根据权利要求1所述的信道检测指示方法,其中,所述第一PDCCH的监听参数是网络设备配置的;所述监听参数包括:监听周期、监听偏移值和监听持续时间中的至少一项。
- 一种终端,包括:第一检测模块,用于检测第一物理下行控制信道PDCCH;第二检测模块,用于若从所述第一PDCCH中接收到调度下行控制信息DCI,则根据所述调度DCI,确定是否检测第二PDCCH。
- 一种终端,包括处理器、存储器以及存储于所述存储器上并在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至16中任一项所述的信道检测指示方法的步骤。
- 一种信道检测指示方法,应用于网络设备侧,包括:发送第一物理下行控制信道PDCCH,其中,所述第一PDCCH中承载有调度下行控制信息DCI,所述调度DCI用于指示终端是否检测第二PDCCH。
- 根据权利要求19所述的信道检测指示方法,其中,所述第二PDCCH与至少一种DCI格式对应,和/或,所述第二PDCCH与至少一个搜索空间对应。
- 根据权利要求19所述的信道检测指示方法,其中,所述调度DCI包括用于以下中至少一项的指示域:在第一传输时间内不检测所述第二PDCCH;在第二传输时间内是否检测所述第二PDCCH;与所述第二PDCCH相关的检测参数;连接态非连续接收CDRX参数;根据接收到的目标信令来检测所述第二PDCCH,其中,所述目标信令与所述调度DCI不同,所述目标信令用于指示与所述第二PDCCH相关的检测参数。
- 根据权利要求21所述的信道检测指示方法,其中,所述指示域包括专用指示字段,或者,所述指示域包括以下字段中的至少一项:时域资源分配字段、载波指示字段、带宽部分指示字段和混合自动重传请求反馈定时指示字段。
- 根据权利要求21或22所述的信道检测指示方法,其中,所述CDRX参数包括:CDRX的周期、CDRX的偏移值和CDRX的激活期中的至少一项。
- 根据权利要求21所述的信道检测指示方法,其中,网络设备通过无线资源控制RRC信令指示检测参数候选集合,所述检测参数候选集合包括至少一项与所述第二PDCCH相关的检测参数,所述指示域用于指示所述检测参数候选集合中的一项。
- 根据权利要求21所述的信道检测指示方法,其中,网络设备通过无线资源控制RRC信令指示CDRX参数候选集合,所述CDRX参数候选集合包括至少一项CDRX参数,所述指示域用于指示所述CDRX参数候选集合中的一项。
- 根据权利要求21所述的信道检测指示方法,其中,所述第一传输时间或所述第二传输时间为:N个时域传输单元、N个第二PDCCH监听周期或第二PDCCH监听周期内的N个监听时域传输单元;其中,所述时域传输单元包括:时隙slot、微时隙mini-slot、毫秒或时域符号,N为正整数。
- 根据权利要求21所述的信道检测指示方法,发送第一物理下行控制信道PDCCH的步骤之前,还包括:接收上报信息;其中,所述上报信息用于指示在第一传输时间内不检测所述第二PDCCH,或在第二传输时间内是否检测所述第二PDCCH。
- 根据权利要求21所述的信道检测指示方法,其中,与所述第二 PDCCH相关的检测参数包括:检测周期、检测偏移值和检测持续时间中的至少一项。
- 根据权利要求19所述的信道检测指示方法,其中,所述调度DCI中指示终端是否检测第二PDCCH的字段的生效起始时间为以下中的一项:所述调度DCI所在slot的下一个slot;所述调度DCI所在slot后间隔时间间隔gap之后的slot,其中,所述gap是预定义的或网络设备配置的;所述调度DCI所调度的物理下行共享信道PDSCH的应答ACK信息所在slot之后第M个slot,M为正整数;所述调度DCI所调度的物理上行共享信道PUSCH所在slot之后的第L个slot,L为正整数。
- 根据权利要求19所述的信道检测指示方法,发送第一物理下行控制信道PDCCH的步骤之后,还包括:在所述第一PDCCH所调度的数据信道初传或重传失败的情况下,根据所述调度DCI,确定是否在目标资源上发送第二PDCCH;其中,所述目标资源是除调度所述数据信道重传的第三PDCCH所在时域资源之外的时域资源。
- 根据权利要求30所述的信道检测指示方法,其中,在所述第一PDCCH所调度的数据信道初传或重传失败的情况下,所述方法还包括:在所述第三PDCCH所在时域资源上发送所述第三PDCCH。
- 根据权利要求19所述的信道检测指示方法,发送第一物理下行控制信道PDCCH的步骤之前,还包括:为所述第一PDCCH配置监听参数;所述监听参数包括:监听周期、监听偏移值和监听持续时间中的至少一项。
- 一种网络设备,包括:第一发送模块,用于发送第一物理下行控制信道PDCCH,其中,所述第一PDCCH中承载有调度下行控制信息DCI,所述调度DCI用于指示终端是否检测第二PDCCH;第二发送模块,用于根据所述调度DCI,确定是否发送所述第二PDCCH。
- 一种网络设备,包括处理器、存储器以及存储于所述存储器上并在 所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现如权利要求19至32任一项所述的信道检测指示方法的步骤。
- 一种计算机可读存储介质,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权利要求1至16、19至32中任一项所述的信道检测指示方法的步骤。
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