WO2021147795A1 - Pdcch的检测方法及终端 - Google Patents
Pdcch的检测方法及终端 Download PDFInfo
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- WO2021147795A1 WO2021147795A1 PCT/CN2021/072404 CN2021072404W WO2021147795A1 WO 2021147795 A1 WO2021147795 A1 WO 2021147795A1 CN 2021072404 W CN2021072404 W CN 2021072404W WO 2021147795 A1 WO2021147795 A1 WO 2021147795A1
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- space group
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0039—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver other detection of signalling, e.g. detection of TFCI explicit signalling
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Definitions
- the embodiment of the present invention relates to the field of communication technology, and specifically relates to a physical downlink control channel (Physical Downlink Control Channel, PDCCH) detection method and terminal.
- PDCCH Physical Downlink Control Channel
- the New Radio (NR) system supports the configuration of different PDCCH monitoring period (monitoring Slot Period), offset (offset), monitoring time length (duration), aggregation level and the number of blind checks, etc. for each PDCCH search space parameter.
- the network side configures multiple search spaces for the terminal to monitor and detect the PDCCH, but frequent blind detection of the PDCCH will increase the power consumption of the terminal.
- An object of the embodiments of the present invention is to provide a PDCCH detection method and a terminal to solve the problem of increased power consumption of the terminal due to frequent blind detection of the PDCCH.
- an embodiment of the present invention provides a PDCCH detection method, including:
- an embodiment of the present invention provides a PDCCH detection method, including:
- the first PDCCH carries DCI format 1-1 and/or DCI format 0-1;
- an embodiment of the present invention provides a terminal, including:
- the first detection module is used to detect PS-PDCCH
- the first determining module is configured to determine the search space group activated in Active Time under the DRX configuration according to the detection result of the PS-PDCCH;
- the second detection module is configured to perform PDCCH detection on the activated search space group.
- an embodiment of the present invention provides a terminal, including:
- the third detection module is configured to detect the first PDCCH, and the first PDCCH carries DCI format 1-1 or DCI format 0-1;
- the second determining module is configured to determine the active search space group according to the detection result of the first PDCCH
- the third detection module is configured to perform PDCCH detection on the activated search space group.
- an embodiment of the present invention provides a terminal, including: a processor, a memory, and a program stored on the memory and capable of running on the processor.
- the program is executed by the processor, the implementation is as follows: The steps of the PDCCH detection method described in the first aspect or the second aspect.
- an embodiment of the present invention provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the implementation of the computer program described in the first or second aspect The steps of the PDCCH detection method.
- the PDCCH detection result is used to obtain the switching instruction of the search space group, so that the terminal can perform PDCCH detection on the corresponding active search space group according to the switching instruction of the search space group, which can reduce the terminal's PDCCH Frequent blind inspections realize terminal energy saving and power saving.
- FIG. 1 is a schematic diagram of the architecture of a wireless communication system according to an embodiment of the present invention
- FIG. 3 is the second flowchart of the PDCCH detection method according to the embodiment of the present invention.
- Figure 4 is one of the schematic structural diagrams of a terminal according to an embodiment of the present invention.
- FIG. 5 is a second schematic structural diagram of a terminal according to an embodiment of the present invention.
- Fig. 6 is the third structural diagram of a terminal according to an embodiment of the present invention.
- words such as “exemplary” or “for example” are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
- LTE Long Time Evolution
- LTE-A Long Time Evolution
- 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 Frequency-Division Multiple Access
- the terms “system” and “network” are often used interchangeably.
- the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
- UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
- the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
- OFDMA system can realize such as Ultra Mobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. Radio technology.
- UMB Ultra Mobile Broadband
- Evolution-UTRA Evolved UTRA
- E-UTRA IEEE 802.11
- WiMAX IEEE 802.16
- IEEE 802.20 Flash-OFDM
- Flash-OFDM Flash-OFDM
- LTE and more advanced LTE are new UMTS versions that use E-UTRA.
- UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
- CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
- the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
- the number of search space groups may be two or more.
- at least two search space groups are configured through Radio Resource Control (RRC).
- at least two search space groups are configured for one Band Width Part (BWP).
- the network may configure at least two search space groups on all BWPs through RRC signaling, and the configuration parameters of the at least two search space groups on each BWP may be different.
- the BWP is a BWP other than the initial BWP.
- Different search space groups can include one or more search space sets, and the differences between different search space groups include at least one of the following characteristics:
- Aggregation level (Aggregation Level) or maximum aggregation level is different
- multiple BWPs can be configured for the terminal through RRC, and multiple search space groups can be configured on each BWP.
- the specific parameters of the search space groups on the multiple BWPs of the terminal can be configured independently. The number must be consistent, or it can be inconsistent.
- RRC configures multiple serving cells (serving cells) for the terminal.
- Some serving cells can be configured with the function of search space group, some serving cells do not have, or some serving cells. This function is configured on BWP. If the search space group and the corresponding handover function are not configured on a certain serving cell, just ignore the relevant DCI's search space group handover instruction for the cell. If the search space group and its switching function are not configured on the current BWP, just ignore the related switching instructions.
- FIG. 1 it is a schematic diagram of the architecture of a wireless communication system according to an embodiment of the present invention.
- the wireless communication system may include: a network device 11 and a terminal 12.
- the terminal 12 may be denoted as a UE 12, and the terminal 12 may communicate with the network device 11 (transmitting signaling or transmitting data).
- the connection between the above-mentioned various devices may be a wireless connection.
- a solid line is shown in FIG. 1.
- the network device 11 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node base station (eNB), or a network device in a 5G system (for example, the following Equipment such as next generation node base station (gNB) or transmission and reception point (TRP)).
- eNB evolved node base station
- 5G system for example, the following Equipment such as next generation node base station (gNB) or transmission and reception point (TRP)).
- gNB next generation node base station
- TRP transmission and reception point
- the terminal 12 provided by the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a netbook or a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device (MID), Wearable Device (Wearable Device), or in-vehicle equipment, etc.
- an embodiment of the present invention provides a method for detecting a PDCCH.
- the method is executed by a terminal, and includes: step 201, step 202, and step 203.
- Step 201 Detect the energy-saving physical downlink control channel (Power Save Physical Downlink Control Channel, PS-PDCCH);
- the PS-PDCCH carries downlink control information (DCI) scrambled by the energy-saving radio network temporary identification (PS-RNTI), for example, DCI format (format) 2-6.
- DCI downlink control information
- PS-RNTI energy-saving radio network temporary identification
- the preset detection range may be the detection range specified in the protocol, and optionally, the detection range may be from the energy-saving offset (PS-offset) to the next non-continuous Receive (Discontinuous Reception, DRX) duration (onduration, ON) and remove the range of the minimum gap (minimum gap).
- PS-offset energy-saving offset
- DRX discontinuous Reception
- Step 202 According to the detection result of the PS-PDCCH, determine the search space group (Search space group) activated within the active time (Active Time) under the discontinuous reception (Discontinuous Reception, DRX) configuration.
- the configuration of the search space group is configured for each BWP of each serving cell. It may also be that the protocol configures at least two search space groups that are the same or different for each BWP of each cell. Therefore, the foregoing determination of the search space group activated in Active Time under the DRX configuration may be the determination of the active search space group on the currently activated BWP of each serving cell of the terminal in the Active Time under the DRX configuration.
- Step 203 Perform PDCCH detection on the activated search space group.
- PDCCH detection is performed on the activated search space group according to the switching delay of the search space group; wherein the switching delay of the search space group is consistent with a preset minimum gap.
- minimum gap is greater than or equal to the switching delay of the search space group specified by the protocol.
- minimum gap is: for an activated downlink BWP, a number of time slots before the start of drx-ondurationtimer.
- step 202 may be implemented in the following manner:
- detecting PS-PDCCH may refer to detecting PS-PDCCH within a preset detection range.
- condition for the search space group switching indication domain to be valid includes one of the following.
- the DCI in the PS-PDCCH includes: a search space group switching indication field and a wake-up indication field (Wake-up indication), and the wake-up indication field indicates the discontinuous reception duration timer (drx- ondurationtimer) is on.
- the DCI in the PS-PDCCH is configured with a search space group switching indication field and a wake-up indication field, and when drx-ondurationtimer is turned on, the search space group switching indication field is valid.
- the DCI in the PS-PDCCH includes: a search space group switching indication field and a secondary cell dormancy indication field (Scell dormancy indication), and the secondary cell dormancy indication field indicates that the secondary cell group enters a non-dormant state, and the search space
- the group switching indication field is valid in the group of secondary cells entering the non-dormant state.
- the UE has 6 serving cells, including one Pcell and 5 Scells.
- RRC is configured for the UE or is grouped according to the Scell group reported by the UE, and divides the 5 Scells into 3 Scell groups.
- the network configures the Scell dormancy indication field and the search space group switching indication field in the DCI in the PS-PDCCH through RRC signaling, and the Scell dormancy indication field indicates that Scell group1 and Scell group2 enter the non-dormant state, and Scell group3 enters the dormant state.
- the search space group switching indication field is valid in Pcell, Scell group1 and Scell group2, that is to say, Scell group 1 and 2 can determine the active search space group according to the indication content of the search space group switching indication field.
- Scell group3 In other words, the search space group switching instruction is invalid.
- the DCI in the PS-PDCCH includes: the search space group switching indicator field, the wake-up indicator field, and the secondary cell dormancy indicator field, and the wake-up indicator field indicates that the drx-ondurationtimer of the next DRX cycle is on;
- the DCI in the PS-PDCCH is configured with a search space group switching indication field, a Scell dormancy indication field, and a wake up indication field, and the wakeup indication field indicates that the drx-onduration timer of the next DRX cycle is on, it can be understood
- the priority of the switching indication field for the search space group is higher than the priority of the Scell dormancy indication field. At this time, the Scell dormancy indication is invalidated, and the search space group switching indication field is valid.
- the DCI in the PS-PDCCH includes: a search space group switching indicator field, a wake-up indicator field, and a secondary cell dormancy indicator field.
- the wake-up indicator field indicates that the drx-ondurationtimer of the next DRX cycle is on, and the secondary cell
- the dormancy indication field indicates that the secondary cell group enters a non-dormant state, and the search space group switching indication field is valid in the secondary cell group that enters the non-dormant state.
- the UE has 6 serving cells, including one Pcell and 5 Scells.
- RRC is configured for the UE or is grouped according to the Scell group reported by the UE, and divides the 5 Scells into 3 Scell groups.
- the network configures the Scell dormancy indication field, wake up indication field, and search space group switching indication field in the DCI in the PS-PDCCH through RRC signaling.
- the wake up indication field indicates that the drx-onduration timer of the next DRX cycle is on, and
- the Scell dormancy indication field indicates that Scell group 1 and 2 enter the non-dormant state, and Scell group 3 enters the dormant state.
- search space group switching indication field is valid in pcell, Scell group 1 and Scell group 2, which means that Scell group 1 and 2 can be based on
- the indication content of the search space group switching indication field determines the active search space group.
- the search space group switching indication is invalid.
- the DCI in the PS-PDCCH only includes: the search space group switching indication field.
- the UE has 6 serving cells, including one Pcell and 5 Scells.
- RRC is configured for the UE or is grouped according to the Scell group reported by the UE, and divides the 5 Scells into 3 Scell groups.
- the network configures the search space group switching indication field in the DCI in the PS-PDCCH through RRC signaling, that is to say, Pcell, Scell group1, Scell group2, and Scell group3 can be activated according to the indication content of the search space group switching indication field.
- the search space group is to say, Pcell, Scell group1, Scell group2, and Scell group3 can be activated according to the indication content of the search space group switching indication field.
- the DCI in the PS-PDCCH may include indication information of multiple terminals.
- the DCI in the PS-PDCCH contains indication information for two terminals.
- the indication information of each terminal is a separate group: for example: the wake-up indication field corresponding to UE1, the dormancy indication field of the secondary cell corresponding to UE1, the search space group switching indication field corresponding to UE1; the wake-up indication field corresponding to UE2, The dormancy indicator field of the secondary cell corresponding to UE2, and the search space group switching indicator field corresponding to UE2.
- the indication information of all terminals is a group: wake-up indication fields corresponding to UE1 and UE2, secondary cell dormancy indication fields corresponding to UE1 and UE2, and search space group switching indications corresponding to UE1 and UE2 area.
- the length of the DCI in the PS-PDCCH may be 0-6 bits.
- the search space group switching indication field in the DCI in the PS-PDCCH can be set in the wake-up indication field and/or the auxiliary After the cell dormancy indicator field.
- search space group switching indication field in the DCI in the PS-PDCCH may be optional (optional) or a mandatory field.
- the search space group switching indication field can exist independently, or need to exist simultaneously with the wakeup indication field and/or the secondary cell dormancy indication field.
- the wakeup indication field and the search space group switching indication field in the DCI in the RRC configuration PS-PDCCH are optional (optional) or a mandatory field.
- Manner 3 If the PS-PDCCH is detected, the DCI in the PS-PDCCH includes the search space group switching indication field, and the search space group switching indication field is invalid, then the default search space group (default SS group), or all search space groups configured by the terminal or all search space groups configured by the terminal on the currently activated BWP are determined as search space groups activated within Active Time under the DRX configuration;
- the default search space group can be a newly defined or configured search space group in addition to the configured search space group, or it can be any one or more of the configured search space groups, or it can also be a protocol
- the specified default search space group may also be any one or more search space sets configured in other protocol versions.
- different default search space groups can be selected on different BWPs or different serving cells.
- the default search space group can be all the search space sets configured on the activated BWP for each serving cell in the standard protocol version 15. It can be understood that as long as it is the search space set configured on the corresponding activated BWP, the UE needs to be in its Monitor the PDCCH.
- the default search space group may be radio resource control (Radio Resource Control, RRC) or DCI configuration.
- RRC Radio Resource Control
- DCI configuration may be radio resource control (Radio Resource Control, RRC) or DCI configuration.
- Manner 4 If the PS-PDCCH is detected within the preset detection range, and the DCI in the PS-PDCCH does not include the search space group switching indication field, set the default search space group or change the All search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP, are determined to be search space groups activated within Active Time under the DRX configuration.
- step 202 may be implemented in the following manner:
- Manner 1 If the PS-PDCCH is not detected within the preset detection range and the first parameter (for example, energy-saving wakeup or not wakeup (ps-wakeupornot)) is configured in higher layer signaling, the first parameter indicates When the drx-ondurationtimer of the next DRX cycle is turned on, the default search space group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP, are determined as DRX Configure the search space group activated in Active Time;
- the first parameter for example, energy-saving wakeup or not wakeup (ps-wakeupornot)
- the terminal does not detect the PS-PDCCH within the preset detection range, and RRC configures the parameter ps-wakeupornot for the terminal, when the parameter ps-wakeupornot is configured to enable ondurationtimer, the UE is in the default search space group, Or monitor the PDCCH on all search space groups configured on the terminal, or on all search space groups configured on the currently activated BWP.
- Manner 2 If the PS-PDCCH is not detected within the preset detection range, and the first parameter (for example, ps-wakeupornot) is not configured in higher layer signaling, then set the default search space group, or set the All search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP, are determined as search space groups activated within Active Time under the DRX configuration;
- the first parameter for example, ps-wakeupornot
- the UE is in the default search space group or in all search space groups configured on the currently active BWP Monitor PDCCH.
- the UE is in the default search space group, or all search space groups configured by the terminal, or all searches configured on the currently active BWP
- the PDCCH is monitored on the space group.
- Error detection refers to: at least one or all of the PS-PDCCH monitoring occasions (Monitoring Occasions, MO), the DCI in the PS-PDCCH does not pass the cyclic redundancy check (Cyclic Redundancy Check, CRC) or other checks There are no restrictions on failures, etc.
- the terminal fails the check when detecting the DCI CRC in the PS-PDCCH, the UE is in the default search space group or on all search space groups configured on the currently active BWP Monitor PDCCH.
- Manner 5 If there is no effective monitoring opportunity (Monitoring Occasions, MO) of the PS-PDCCH within the preset detection range, set the default search space group or all search space groups configured by the terminal, Or, determine all search space groups configured by the terminal on the currently activated BWP as search space groups activated within Active Time under the DRX configuration.
- Monitoring Occasions, MO Monitoring Occasions, MO
- the downlink time slot in the detection range is changed to the uplink time slot.
- SFI Slot Format Indication
- the aforementioned absence of a valid PS-PDCCH MO means that the time domain or frequency domain position of the MO conflicts with the following channels/signals, or the terminal is not required to perform detection on the MO.
- the channel/signal includes one of the following:
- the first signal or the first channel includes: synchronization signal block (Synchronization Signal and PBCH block, SSB), channel state indication reference signal (CSI Reference Signal, CSI-RS), physical uplink control channel (Physical Uplink Control Channel, PUCCH) ), Physical Uplink Shared Channel (PUSCH), Sounding Reference Signal (SRS) and Random Access Response (RAR).
- synchronization signal block Synchronization Signal and PBCH block, SSB
- CSI Reference Signal Channel state indication reference signal
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- SRS Sounding Reference Signal
- RAR Random Access Response
- the search space group indication field added to the DCI in the PS-PDCCH may indicate switching to the corresponding search space group in the unit of cell and/or cell group and/or SCell group, or indicate to switch to the corresponding search space group in units of cell and/or cell group and/or SCell group.
- Cell and/or cell group and/or SCell group are used as a unit to indicate switching to one or more search space groups, where all cells in the cell group switch to the same search space group, and all SCells in the SCell group switch to the same search space group.
- a search space group is used as a unit to indicate switching to one or more search space groups, where all cells in the cell group switch to the same search space group, and all SCells in the SCell group switch to the same search space group.
- the search space group switching indication field can be indicated in units of cell and SCell group.
- the search space group switching indication field may be indicated in units of Pcell and SCell group.
- the search space group switching indication field may be indicated in units of SCell group (Pcell is not indicated), etc.
- the search space group switching indication field indicates one or more of the following:
- the PS-PDCCH is configured per CG. Therefore, the indication range of the PS-PDCCH configured on the special cell (SPcell) in each CG is for each CG.
- SPcell special cell
- RRC configures two search space groups SS group1 and SS group2 for each BWP of each serving cell of the terminal, and the terminal has a total of 5 serving cells.
- the number of search space indication bits added in the DCI in the PS-PDCCH can be 1 bit: if the currently activated search space group is SS group 1, then “0” means that all serving cells will not be handed over, and the activated search space group is still SS group1. "1" means that all serving cells are handed over and switched to SS group2 to monitor the PDCCH.
- RRC configures two search space groups SS group1 and SS group2 for each BWP of each serving cell of the terminal, and the terminal has a total of 5 serving cells.
- the number of search space indication bits added in the DCI in the PS-PDCCH is equal to the total number of serving cells, for example: "01110", which means that the 5 serving cells are in sequence, corresponding to handover or no handover, where "0" means no Switch, "1" means switch.
- the RRC may divide the serving cell of the terminal into one or more DRX groups, and each DRX group has a corresponding PS-PDCCH, instructing the cells included in the DRX group to switch the search space group.
- SPcells refer to the primary and secondary cells (Primary Cell, Pcell) and secondary cell group (SCG) in the scenario of dual connectivity (DC). Primary Secondary Cell, Pscell).
- Each secondary cell group (Scell group) is switched to its corresponding search space group, and all Scells in a Scell group are switched to the same search space group.
- search space group only acts on the SCell.
- RRC configures two search space groups for each serving cell of the terminal.
- the terminal currently has 5 serving cells, of which 4 Scells are divided into two SCell groups.
- the number of search space switching indication bits added in the DCI in the PS-PDCCH is equal to the number of SCell groups.
- each Scell group uses 1 bit to indicate the search space group "01", which means that SCell group1 does not switch, and SCell group2 To switch.
- (3) and (4) can be combined to indicate, for example, PCell is independently indicated, and other SCells can be indicated in units of SCell group or SCell. That is, the search space group switching indication field can independently instruct PCell and SCell or SCell group to switch between different search space groups.
- RRC configures two search space groups for the serving cell of the terminal (for example, each serving cell).
- the terminal currently has 5 serving cells, one Pcell, and 4 Scells, and it divides the two Scells into one group, a total of two A SCell group (Scell group grouping may be configured by RRC or reported by the terminal, where the RRC configuration may be consistent with or inconsistent with the configured Scell group in Scell dormancy).
- the number of search space group switching indication bits added to the DCI in the PS-PDCCH is equal to the number of PCell and SCell groups. For example, each group uses 1 bit to perform the search space group indication "010", then the indication indicates that the PCell does not perform Handover, SCell group1 performs handover, SCell group2 does not perform handover.
- the bit length of the search space group switching indication field is related to one or more of the following: (1) the content indicated by the search space group switching indication field; (2) the service of the terminal The number of cells; (3) the number of search space groups of the terminal.
- search space group switching indication field is indicated by one of the following:
- Bitmap including at least one bit, each bit corresponds to a serving cell or cell group or Scell group, indicating whether to switch the search space group, for example, "0" means no switching, "1" Indicates switching;
- the bitmap includes at least one bit, and each bit corresponds to a serving cell or CG or Scell group, and the bit is used to indicate whether the corresponding serving cell or CG or Scell group performs search space group switching;
- the bitmap includes only 1 bit, and the 1 bit is used to indicate whether to switch from the current search space group to another search space group.
- the other search space group refers to another search space group besides the current search space group. If there are multiple search space groups configured, the other search space groups It is any search space group other than the current search space group.
- RRC configures two SS groups, and 1 bit in the DCI in the PS-PDCCH indicates whether the SS group is switched relative to the current SS group. "0" means no switching, and "1" means switching to another SS group.
- the bitmap includes at least one bit, and each bit corresponds to a search space group of a serving cell or CG or Scell group, and the bit is used to indicate whether the corresponding search space group is activated;
- RRC configures two search space groups for the serving cells of the terminal.
- the terminal currently has 5 serving cells, one Pcell, and 4 Scells, and it divides the two Scells into one group, for a total of two SCell groups, for example, bit : 011110, where the first two bits belong to the two search space groups corresponding to Pcell, where group 1 is not activated and group 2 is activated; the next two bits belong to the two search space groups of the first SCell group, where group Both 1 and group 2 are activated; and so on.
- RRC configures three search space groups for the serving cells of the terminal.
- the terminal currently has 5 serving cells, one Pcell, and 4 Scells.
- the two Scells are grouped into one group, and there are two SCell groups in total, for example, bit : 100100, where the first two bits indicate that the third search space group of the Pcell is activated; the following two bits indicate that the second search space group of the first SCell group is activated; and so on.
- each search space group has a corresponding group index.
- SS groups search space groups
- Bitstring is: 0011, which means SS group0 and SS group3 are activated.
- the other search space group refers to another search space group besides the current search space group. If there are multiple search space groups configured, the other search space groups It is any search space group other than the current search space group.
- RRC configures two SS groups, and 1 bit in the DCI in the PS-PDCCH indicates whether the SS group is switched relative to the current SS group. "0" means no switching, and "1" means switching to another SS group.
- Example 1 RRC configures two search space groups for the terminal: SS group1 and SS group2, where the PDCCH monitoring period of SS group1 is 2 symbols; the PDCCH monitoring period of SS group2 is 1 time slot ( slot).
- the search space group switching indication field in the DCI in the PS-PDCCH only supports the activation of a single search space group, and the bitstring method is applied. If the currently activated search space group is SS group1 and the search space group switching indication field is 0, it does not Change (that is, no search space group switching); if the search space group switching indication field is 1, then switch to SS group2 to monitor the corresponding Active Time PDCCH.
- Example 2 RRC configures two search space groups for the terminal: SS group1 and SS group2, where the PDCCH monitoring period of SS group1 is 2 symbols; the PDCCH monitoring period of SS group2 is 1 slot.
- the search space group switching indication field in the DCI in the PS-PDCCH supports the activation of multiple search space groups, and the bitmap method is applied. If the bit of the current search space group switching indication field is 11, SS group 0 and SS group 1 will be activated at the same time , The terminal needs to monitor the PDCCH on these two SS groups. If the bit of the current search space group switching indication field is 01, SS group1 is activated, and the terminal only needs to monitor the PDCCH of Active Time on SS group1.
- the PS-PDCCH detection result is used to obtain the switching instruction of the search space group, so that the terminal can perform PDCCH detection on the corresponding active search space group according to the switching instruction of the search space group, which can reduce terminal pairs. Frequent blind detection of PDCCH realizes terminal energy saving and power saving.
- an embodiment of the present invention also provides a PDCCH detection method.
- the method may be executed by a terminal, and includes: step 301, step 302, and step 303.
- Step 301 Detect a first PDCCH, where the first PDCCH carries DCI format 1-1 and/or DCI format 0-1;
- Step 302 Determine an activated search space group according to the detection result of the first PDCCH
- the terminal misdetects the second PDCCH, the default search space group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP , Determined as the active search space group.
- the default search space is set
- the group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP, are determined as the active search space group.
- the cell group when the instruction is performed in the unit of cell group, the cell group includes cell1 and cell2, and cell1 is in a certain slot, and the Timer timeout causes all cells in the cell group to switch to SS group1, but cell 2 receives it in the same slot. DCI instructs to switch to SS group2. Due to the conflicting instructions, the default search space group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently active BWP, are determined as Active search space group.
- the method may further include: within the BWP handover delay, setting the default search space group, or setting all search space groups configured by the terminal, or setting the terminal in All search space groups configured on the currently activated BWP are determined to be active search space groups.
- Step 303 Perform PDCCH detection on the activated search space group.
- DCI format 1-1, or DCI format 0-1 includes: search space group switching indication bit, the search space group switching indication bit is used to indicate the activation of the search space group, that is, the search space group switching indication bit can be used To activate the search space group.
- the content indicated by the search space group switching indication bit includes one or more of the following:
- the DCI format 1-1 or DCI format 0-1 further includes: a minimum scheduling offset (minimumschedulingoffset) indication field, and the search space group switching indication bit is located in the minimumschedulingoffset in the first DCI Indicates the domain.
- a minimum scheduling offset minimumschedulingoffset
- the DCI format 1-1 or DCI format 0-1 includes: a minimumschedulingoffset indicator field or a secondary cell dormancy indicator field, and the minimumschedulingoffset indicator field or a secondary cell dormancy indicator field is used for search space group switching. Binding (bundle) instructions.
- the minimumschedulingoffset indicator field of DCI format 1-1 or 0-1 is combined to perform the bundle indicator of the search space group. For example, when the K0/K2 indicated by the cross-carrier scheduling is 0, the search space group 1 or the default search space group is activated, and when K0/K2 is not 0, the search space group 2 or the default search space group is activated.
- the application delay (Application delay) existing in the minimum scheduling offset itself has already met the switching delay of the search space group.
- the switching delay of the search space group is consistent with the application delay of cross-slot scheduling (cross-slot scheduling), that is, after the application delay is satisfied, the terminal can detect the PDCCH in the search space group after the switching.
- the DCI format 1-1 or 0-1 further includes: a Scell dormancy indication field, and the Scell dormancy indication field and the search space group switching indication bit are used simultaneously or independently.
- the switching of the search space group is implicitly indicated.
- the current search space is SS group1
- the terminal receives the scheduling DCI (for example, the scheduling DCI may indicate a downlink or uplink grant (DL or UL grant)).
- the scheduling DCI may indicate a downlink or uplink grant (DL or UL grant)).
- the PDCCH detection period of the network configuration SS group1 is 10 slots, SS group2 is 1 slot, and SS group1 is currently used.
- the terminal receives a scheduled DCI, it will switch to SS group2.
- the UE receives scheduling DCI on any cell in the cell group, the entire cell group will be switched to SS group2 in the unit of cell group, or , Taking the cell as the unit, only the cell that receives the scheduled DCI is handed over to SS group2.
- the switching of the search space group is implicitly indicated, and the RRC configures a timer (Timer).
- the function of the Timer is to automatically switch from SS group2 back to SS group1 if the Timer expires.
- the Timer will be restarted every time a scheduled DCI is received.
- Timer may be specific to each serving cell (per serving cell), or may be specific to each cell group (per cell group).
- the PDCCH detection period of the network configuration set0 is 10 slot, set 1 is 1 slot, and the currently used SS group2, the terminal receives a certain scheduled DCI in the Timer, then it restarts the Timer, and if it does not receive it in the Timer To DCI then switch to SS group1.
- the terminal expires on any cell in the cell group, the entire cell group will switch to SS group1 (per cell group), or only the cell whose Timer expires Switch to SS group1 (per cell).
- the switching instruction of the search space group is obtained based on the detection result of the first PDCCH, so that the terminal can perform PDCCH detection on the corresponding active search space group according to the switching instruction of the search space group, which can reduce terminal pairs. Frequent blind detection of PDCCH realizes terminal energy saving and power saving.
- an embodiment of the present invention also provides a terminal, and the terminal 400 includes:
- the first detection module 401 is used to detect PS-PDCCH
- the first determining module 402 is configured to determine the search space group activated in Active Time under the DRX configuration according to the detection result of the PS-PDCCH;
- the second detection module 403 is configured to perform PDCCH detection on the activated search space group.
- the first determining module 402 is further configured to:
- the detected DCI in the PS-PDCCH includes a search space group switching indication field, or, if the PS-PDCCH is detected, the DCI in the PS-PDCCH includes: a search space group switching indication field, And the search space group switching indication field is valid, then according to the search space group switching indication field, the search space group activated in Active Time under the DRX configuration is determined;
- the detected DCI in the PS-PDCCH includes: a search space group switching indication field, and the search space group switching indication field is invalid, or if the detected DCI in the PS-PDCCH does not include: search Space group switching indication field, the default search space group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP, are determined as Active under the DRX configuration Search space group activated within Time.
- the conditions under which the search space group switching indication domain is valid include:
- the DCI in the PS-PDCCH includes: the search space group switching indication field and the wake-up indication field, and the wake-up indication field indicates that the discontinuous reception duration timer drx-ondurationtimer of the next DRX cycle is on;
- the DCI in the PS-PDCCH includes: the search space group switching indicator field and the secondary cell dormancy indicator field, and the secondary cell dormancy indicator field indicates that the secondary cell group enters a non-dormant state, and the search space group switching indicator field It is valid in the secondary cell group that enters the non-sleep state;
- the DCI in the PS-PDCCH includes: the search space group switching indicator field, the wake-up indicator field, and the secondary cell dormancy indicator field, the wake-up indicator field indicates that the drx-ondurationtimer of the next DRX cycle is on, and the secondary cell
- the cell dormancy indication field indicates that the secondary cell group enters a non-dormant state, and the search space group switching indication field is valid in the secondary cell group that enters the non-dormant state;
- the DCI in the PS-PDCCH includes: the search space group switching indicator field, the wake-up indicator field, and the secondary cell dormancy indicator field, and the wake-up indicator field indicates that the drx-ondurationtimer of the next DRX cycle is on;
- the DCI in the PS-PDCCH only includes: the search space group switching indication field.
- the search space group switching indication field is after the wake-up indication field and/or the secondary cell dormancy indication field.
- the first determining module 402 is further configured to:
- the default search space group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP are determined as DRX configuration Search space group activated within Active Time.
- the PS-PDCCH is not detected within the preset detection range, and the first parameter is configured in higher layer signaling;
- the PS-PDCCH is not detected within the preset detection range, and the first parameter is not configured in higher layer signaling;
- the first parameter indicates the drx-ondurationtimer to start the next DRX cycle.
- the second detection module 403 is further configured to: perform PDCCH detection on the activated search space group according to the switching delay of the search space group; wherein, the switching delay of the search space group is the same as The preset minimum gap is the same.
- the content indicated by the search space group switching indication field includes one or more of the following:
- Each cell is switched to its corresponding search space group
- Each SPcell switches to its corresponding search space group
- Each Scell group is switched to its corresponding search space group, and all Scells in a Scell group are switched to the same search space group.
- bit length of the search space group switching indication field is related to one or more of the following:
- the number of serving cells of the terminal is the number of serving cells of the terminal.
- the number of search space groups of the terminal is the number of search space groups of the terminal.
- the search space group switching indication field includes one of the following:
- a bitmap includes at least one bit, each bit corresponds to a search space group, and the bit is used to indicate whether the corresponding search space group is activated; or, each bit corresponds to a serving cell or CG or Scell group, the bit is used to indicate whether the corresponding serving cell or CG or Scell group performs search space group switching; or, each bit corresponds to a serving cell or a search space group of CG or Scell group, and the bit is used for Indicate whether the corresponding search space group is activated;
- a bit string which is used to indicate the active search space group.
- the terminal provided in the embodiment of the present invention can execute the method embodiment shown in FIG. 2 above, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
- an embodiment of the present invention also provides a terminal, and the terminal 500 includes:
- the third detection module 501 is configured to detect the first PDCCH, where the first PDCCH carries DCI format 1-1 and/or DCI format 0-1;
- the second determining module 502 is configured to determine an activated search space group according to the detection result of the first PDCCH;
- the fourth detection module 503 is configured to perform PDCCH detection on the activated search space group.
- the second determining module 502 is further configured to:
- the search space group switching instruction content corresponding to the first PDCCH conflicts with other search space group switching instructions obtained at the same time by the terminal; or, if the terminal makes a mistake For the first PDCCH, the default search space group, or all search space groups configured by the terminal, or all search space groups configured by the terminal on the currently activated BWP, are determined as the active search space group .
- the terminal 500 further includes: a third determining module, configured to set the default search space group, or all the search space groups configured by the terminal, or set the terminal All search space groups configured on the currently activated BWP are determined to be active search space groups.
- the DCI format 1-1 or DCI format 0-1 includes: a search space group switching indication bit, and the search space group switching indication bit is used to indicate the activation of the search space group.
- the DCI format 1-1 or DCI format 0-1 further includes: a minimumschedulingoffset indication field, and the search space group switching indication bit is located in the minimumschedulingoffset indication field.
- the content indicated by the search space group switching indication bit includes one or more of the following:
- the DCI format 1-1 or DCI format 0-1 includes: a minimumschedulingoffset indicator field or a secondary cell dormancy indicator field, and the minimumschedulingoffset indicator field or a secondary cell dormancy indicator field is used for binding of search space group switching. Set instructions.
- the terminal provided by the embodiment of the present invention can execute the method embodiment shown in FIG. 3 above, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
- the terminal 600 shown in FIG. 6 includes: at least one processor 601, a memory 602, at least one network interface 604, and a user interface 603.
- the various components in the terminal 600 are coupled together through the bus system 605.
- the bus system 605 is used to implement connection and communication between these components.
- the bus system 605 also includes a power bus, a control bus, and a status signal bus.
- various buses are marked as the bus system 605 in FIG. 6.
- the user interface 603 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.).
- a pointing device for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.
- the memory 602 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
- RAM static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory
- SDRAM double data rate synchronous dynamic random access memory
- Double Data rate SDRAM DDRSDRAM
- enhanced SDRAM ESDRAM
- Synchlink DRAM SLDRAM
- Direct Rambus RAM DRRAM
- the memory 602 of the system and method described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
- the memory 602 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: operating system 6021 and application programs 6022.
- the operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
- the application program 6022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
- the program for implementing the method of the embodiment of the present invention may be included in the application program 6022.
- the terminal provided in the embodiment of the present invention can execute the foregoing method embodiment, and its implementation principles and technical effects are similar, and details are not described herein again in this embodiment.
- the steps of the method or algorithm described in conjunction with the disclosure of the present invention can be implemented in a hardware manner, or can be implemented in a manner that a processor executes software instructions.
- Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable PROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only optical disks, or any other form of storage medium known in the art.
- An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium.
- the storage medium may also be an integral part of the processor.
- the processor and the storage medium may be located in an application specific integrated circuit (ASIC).
- ASIC application specific integrated circuit
- the ASIC may be located in the core network interface device.
- the processor and the storage medium may also exist as discrete components in the core network interface device.
- modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.
- ASICs application specific integrated circuits
- DSP Digital Signal Processing
- DSP Device digital signal processing equipment
- PLD Programmable Logic Device
- Field-Programmable Gate Array Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
- the functions described in the present invention can be implemented by hardware, software, firmware, or any combination thereof.
- these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
- the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
- the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.
- the embodiments of the present invention may be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
- the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
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Abstract
Description
Claims (36)
- 一种物理下行控制信道PDCCH的检测方法,应用于终端,包括:检测节能物理下行控制信道PS-PDCCH;根据所述PS-PDCCH的检测结果,确定非连续接收DRX配置下激活时间Active Time内激活的搜索空间组;在所述激活的搜索空间组上进行PDCCH检测。
- 根据权利要求1所述的方法,其中,所述根据所述PS-PDCCH的检测结果,确定DRX配置下Active Time内激活的搜索空间组,包括:如果检测到的所述PS-PDCCH中的下行控制信息DCI包括:搜索空间组切换指示域,或者,如果检测到的所述PS-PDCCH中的DCI包括:搜索空间组切换指示域,且所述搜索空间组切换指示域有效,则根据所述搜索空间组切换指示域,确定DRX配置下Active Time内激活的搜索空间组;或者,如果检测到的所述PS-PDCCH中的DCI包括:搜索空间组切换指示域,且所述搜索空间组切换指示域无效,或者,如果检测到的所述PS-PDCCH中的DCI不包括:搜索空间组切换指示域,则将以下搜索空间组确定为DRX配置下Active Time内激活的搜索空间组:默认的搜索空间组、所述终端配置的所有搜索空间组、或者所述终端在当前激活的部分带宽BWP上配置的所有搜索空间组。
- 根据权利要求2所述的方法,其中,所述搜索空间组切换指示域有效的条件,包括:所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域和唤醒指示域,且所述唤醒指示域指示下一个DRX周期的非连续接收持续时间定时器drx-ondurationtimer为开启;或者,所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域和辅小区休眠指示域,且所述辅小区休眠指示域指示辅小区组Scell group进入非休眠态,所述搜索空间组切换指示域在所述进入非休眠态的Scell group内有效;或者,所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域、唤醒指示域和辅小区休眠指示域,所述唤醒指示域指示下一个DRX周期的drx-ondurationtimer为开启,且所述辅小区休眠指示域指示Scell group进入非休眠态,所述搜索空间组切换指示域在所述进入非休眠态的Scell group内有效;或者,所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域、唤醒指示域和辅小区休眠指示域,所述唤醒指示域指示下一个DRX周期的drx-ondurationtimer为开启;或者,所述PS-PDCCH中的DCI仅包括:所述搜索空间组切换指示域。
- 根据权利要求3所述的方法,其中,所述搜索空间组切换指示域在所述唤醒指示域和/或所述辅小区休眠指示域之后。
- 根据权利要求1所述的方法,其中,所述根据所述PS-PDCCH的检测结果,确定DRX配置下Active Time内激活的搜索空间组,包括:如果在预设的检测范围内没有检测到所述PS-PDCCH,或者,如果在预设的检测范围内错检了所述PS-PDCCH,或者,如果在预设的检测范围内,没有有效的所述第一PDCCH的监听时机MO,则将以下搜索空间组确定为DRX配置下Active Time内激活的搜索空间组:默认的搜索空间组、所述终端配置的所有搜索空间组、或者所述终端在当前激活的部分带宽BWP上配置的所有搜索空间组。
- 根据权利要求5所述的方法,其中,所述在预设的检测范围内没有检测到所述PS-PDCCH,包括:在预设的检测范围内没有检测到所述PS-PDCCH,且高层信令配置了第一参数;或者,在预设的检测范围内没有检测到所述PS-PDCCH,且高层信令未配置所述第一参数;其中,所述第一参数指示开启下一个DRX周期的drx-ondurationtimer。
- 根据权利要求1所述的方法,其中,所述在所述激活的搜索空间组上进行PDCCH检测,包括:根据搜索空间组的切换时延,在所述激活的搜索空间组上进行PDCCH检测;其中,所述搜索空间组的切换时延与预设的最小间隔一致。
- 根据权利要求2至7任一项所述的方法,其中,所述搜索空间组切换指示域指示的内容包括以下一项或多项:小区组CG中的所有小区切换到同一个搜索空间组;每个小区分别切换到各自对应的搜索空间组;每个特殊小区SPcell分别切换到各自对应的搜索空间组;每个Scell group分别切换到各自对应的搜索空间组,其中,一个Scell group内的所有Scell切换到同一个搜索空间组。
- 根据权利要求2至8任一项所述的方法,其中,所述搜索空间组切换指示域的比特长度与以下一项或多项相关:所述搜索空间组切换指示域指示的内容;所述终端的服务小区个数;所述终端的搜索空间组的个数。
- 根据权利要求2至9所述的方法,其中,所述搜索空间组切换指示域包括以下之一:位图,所述位图中包括至少一个比特,每个比特对应一个搜索空间组,所述比特用于指示对应的搜索空间组是否被激活;或者,每个比特对应一个服务小区或CG或Scell group,所述比特用于指示对应的服务小区或CG或Scell group是否进行搜索空间组的切换;或者,每个比特对应一个服务小区或CG或Scell group的一个搜索空间组,所述比特用于指示对应的搜索空间组是否被激活;比特字符串,所述比特字符串用于指示激活的搜索空间组。
- 一种PDCCH的检测方法,应用于终端,包括:检测第一PDCCH,所述第一PDCCH携带DCI格式format 1-1和/或DCI format 0-1;根据所述第一PDCCH的检测结果,确定激活的搜索空间组;在所述激活的搜索空间组上进行PDCCH检测。
- 根据权利要求11所述的方法,其中,所述根据所述第一PDCCH的检测结果,确定激活的搜索空间组,包括:如果检测到所述第一PDCCH,且所述第一PDCCH对应的搜索空间组切换指示内容,与所述终端同时获得的其他搜索空间组切换指示内容相互冲突;或者,如果所述终端错检所述第一PDCCH,则将默认的搜索空间组,或者将所述终端配置的所有搜索空间组,或将所述终端在当前激活的BWP上配置的所有搜索空间组,确定为激活的搜索空间组。
- 根据权利要求11所述方法,还包括:在BWP切换时延内,则将默认的搜索空间组,或者将所述终端配置的所有搜索空间组,或者将所述终端在当前激活的BWP上配置的所有搜索空间组,确定为激活的搜索空间组。
- 根据权利要求11所述方法,其中,所述DCI format 1-1或者DCI format 0-1包括:搜索空间组切换指示比特,所述搜索空间组切换指示比特用于指示激活搜索空间组。
- 根据权利要求14所述的方法,其中,所述DCI format 1-1或者DCI format 0-1还包括:最小调度偏移指示域,所述搜索空间组切换指示比特位于所述最小调度偏移指示域中。
- 根据权利要求14或15所述方法,其中,所述搜索空间组切换指示比特指示的内容包括以下一项或多项:指示CG中的所有小区切换到同一个搜索空间组;指示每个小区分别切换到各自对应的搜索空间组;指示每个SPcell分别切换到各自对应的搜索空间组;指示每个Scell group分别切换到各自对应的搜索空间组,其中,一个Scell group内的所有Scell切换到同一个搜索空间组。
- 根据权利要求11所述方法,其中,所述DCI format 1-1或者DCI format 0-1包括:最小调度偏移指示域或辅 小区休眠指示域,所述最小调度偏移指示域或辅小区休眠指示域用于搜索空间组切换的绑定指示。
- 一种终端,包括:第一检测模块,用于检测PS-PDCCH;第一确定模块,用于根据所述PS-PDCCH的检测结果,确定DRX配置下Active Time内激活的搜索空间组;第二检测模块,用于在所述激活的搜索空间组上进行PDCCH检测。
- 根据权利要求18所述的终端,其中,所述第一确定模块进一步用于:如果检测到的所述PS-PDCCH中的下行控制信息DCI包括:搜索空间组切换指示域,或者,如果检测到所述PS-PDCCH,所述PS-PDCCH中的DCI中包括:搜索空间组切换指示域,且所述搜索空间组切换指示域有效,则根据所述搜索空间组切换指示域,确定DRX配置下Active Time内激活的搜索空间组;或者,如果检测到的所述PS-PDCCH中的DCI包括:搜索空间组切换指示域,且所述搜索空间组切换指示域无效,或者,如果检测到的所述PS-PDCCH中的DCI不包括:搜索空间组切换指示域,则将默认的搜索空间组,或者将所述终端配置的所有搜索空间组,或者将所述终端在当前激活的BWP上配置的所有搜索空间组,确定为DRX配置下Active Time内激活的搜索空间组。
- 根据权利要求19所述的终端,其中,所述搜索空间组切换指示域有效的条件,包括:所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域和唤醒指示域,且所述唤醒指示域指示下一个DRX周期的非连续接收持续时间定时器drx-ondurationtimer为开启;或者,所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域和辅小区休眠指示域,且所述辅小区休眠指示域指示辅小区组进入非休眠态,所述搜索空间组切换指示域在所述进入非休眠态的辅小区组内有效;或者,所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域、唤醒指示域和辅小区休眠指示域,所述唤醒指示域指示下一个DRX周期的drx-ondurationtimer为开启,且所述辅小区休眠指示域指示辅小区组进入非休眠态,所述搜索空间组切换指示域在所述进入非休眠态的辅小区组内有效;或者,所述PS-PDCCH中的DCI包括:所述搜索空间组切换指示域、唤醒指示域和辅小区休眠指示域,所述唤醒指示域指示下一个DRX周期的drx-ondurationtimer为开启;或者,所述PS-PDCCH中的DCI仅包括:所述搜索空间组切换指示域。
- 根据权利要求20所述的终端,其中,所述搜索空间组切换指示域在所述唤醒指示域和/或所述辅小区休眠指示域之后。
- 根据权利要求18所述的终端,其中,所述第一确定模块进一步用于:如果在预设的检测范围内没有检测到所述PS-PDCCH,或者,如果在预设的检测范围内错检了所述PS-PDCCH,或者,如果在预设的检测范围内,没有有效的所述第一PDCCH的MO,则将默认的搜索空间组,或者将所述终端配置的所有搜索空间组,或者所述终端在当前激活的BWP上配置的所有搜索空间组,确定为DRX配置下Active Time内激活的搜索空间组。
- 根据权利要求22所述的终端,其中,所述第一确定模块进一步用于:在预设的检测范围内没有检测到所述PS-PDCCH,且高层信令配置了第一参数;或者,在预设的检测范围内没有检测到所述PS-PDCCH,且高层信令未配置所述第一参数;其中,所述第一参数指示开启下一个DRX周期的drx-ondurationtimer。
- 根据权利要求18所述的终端,其中,第二检测模块进一步用于:根据搜索空间组的切换时延,在所述激活的搜索空间组上进行PDCCH检测;其中,所述搜索空间组的切换时延与预设的最小间隔一致。
- 根据权利要求19至24任一项所述的终端,其中,所述搜索空间组切换指示域指示的内容包括以下一项或多项:小区组CG中的所有小区切换到同一个搜索空间组;每个小区分别切换到各自对应的搜索空间组;每个特殊小区SPcell分别切换到各自对应的搜索空间组;每个Scell group分别切换到各自对应的搜索空间组,其中,一个Scell group内的所有Scell切换到同一个搜索空间组。
- 根据权利要求19至25任一项所述的终端,其中,所述搜索空间组切换指示域的比特长度与以下一项或多项相关:所述搜索空间组切换指示域指示的内容;所述终端的服务小区个数;所述终端的搜索空间组的个数。
- 根据权利要求19至26任一项所述的终端,其中,所述搜索空间组切换指示域包括以下之一:位图,所述位图中包括至少一个比特,每个比特对应一个搜索空间组,所述比特用于指示对应的搜索空间组是否被激活;或者,每个比特对应一个服务小区或CG或Scell group,所述比特用于指示对应的服务小区或CG或Scell group是否进行搜索空间组的切换;或者,每个比特对应一个服务小区或CG或Scell group的一个搜索空间组,所述比特用于指示对应的搜索空间组是否被激活;比特字符串,所述比特字符串用于指示激活的搜索空间组。
- 一种终端,包括:第三检测模块,用于检测第一PDCCH,所述第一PDCCH携带DCI format 1-1或者DCI format 0-1;第二确定模块,用于根据所述第一PDCCH的检测结果,确定激活的搜索空间组;第三检测模块,用于在所述激活的搜索空间组上进行PDCCH检测。
- 根据权利要求28所述的终端,其中,第二确定模块进一步用于:如果检测到所述第一PDCCH,且所述第一PDCCH对应的搜索空间组切换指示内容,与所述终端同时获得的其他搜索空间组切换指示内容相互冲突;或者,如果所述终端错检所述第一PDCCH,则将默认的搜索空间组,或者将所述终端配置的所有搜索空间组,或将所述终端在当前激活的BWP上配置的所有搜索空间组,确定为激活的搜索空间组。
- 根据权利要求28所述的终端,还包括:第三确定模块,用于在BWP切换时延内,则将默认的搜索空间组,或者将所述终端配置的所有搜索空间组,或者将所述终端在当前激活的BWP上配置的所有搜索空间组,确定为激活的搜索空间组。
- 根据权利要求28所述的终端,其中,所述DCI format 1-1或者DCI format 0-1包括:搜索空间组切换指示比特,所述搜索空间组切换指示比特用于指示激活搜索空间组。
- 根据权利要求31所述的终端,其中,所述DCI format 1-1或者DCI format 0-1还包括:最小调度偏移指示域,所述搜索空间组切换指示比特位于所述最小调度偏移指示域中。
- 根据权利要求31或32所述的终端,其中,所述搜索空间组切换指示比特指示的内容包括以下一项或多项:指示CG中的所有小区切换到同一个搜索空间组;指示每个小区分别切换到各自对应的搜索空间组;指示每个SPcell分别切换到各自对应的搜索空间组;指示每个Scell group分别切换到各自对应的搜索空间组,其中,一个Scell group内的所有Scell切换到同一个搜索空间组。
- 根据权利要求28所述的终端,其中,所述DCI format 1-1或者DCI format 0-1包括:最小调度偏移指示域或辅小区休眠指示域,所述最小调度偏移指示域或辅小区休眠指示域用于搜索空间组切换的绑定指示。
- 一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1至17中任一项所述的PDCCH的检测方法的步骤。
- 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至17中任一项所述的PDCCH的检测方法的步骤。
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