CN114629611A - DCI detection method and device, storage medium and user equipment - Google Patents
DCI detection method and device, storage medium and user equipment Download PDFInfo
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Abstract
A DCI detection method and device, a storage medium and user equipment are provided, wherein the DCI detection method comprises the following steps: determining a length type of a current DRX period; in the active BWP of a serving cell, selecting a search space set group corresponding to the current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX period; and detecting DCI in the selected search space set group. The technical scheme of the invention can reduce the power consumption of the user equipment.
Description
Technical Field
The present invention relates to the field of communication processing technologies, and in particular, to a DCI detection method and apparatus, a storage medium, and a user equipment.
Background
In a New Radio access (NR) system, a base station may configure one or more Control Resource sets (CORESET) of a User Equipment (UE) on a Bandwidth-limited Part (BWP) of a serving cell, and detect a Downlink Control Information (DCI) belonging to the base station according to a Radio Network Temporary Identifier (RNTI). For example, for a scenario without considering carrier aggregation, when the UE operates on one carrier, i.e., one serving cell, the base station may configure the UE to detect search spaces in one or more CORESET activated on BWP in the carrier, and the UE detects DCI belonging to the UE according to its RNTI, and then receives data or uploads data according to the DCI. One serving cell may configure one or more BWPs, which may be active or inactive. The UE does not need to detect DCI on inactive BWP.
The UE may configure one serving cell or may configure a plurality of serving cells. For each serving cell, one or more Control Resource sets (core sets) may be configured according to BWP, and one or more search space sets (search space sets) may be configured on each core Set. The network may configure the number of times the UE detects DCI per search space set, the aggregation level, DCI format, etc., and the timing to detect DCI, etc. The number of times that the UE performs different DCI blind tests is closely related to the power consumption of the UE, so a Search space set group (Search space set group) for switching the UE is considered in a New Radio (NR) system to achieve the purpose of power saving.
However, in the prior art, the network needs to instruct, through signaling, each time the search space set group is switched, which increases signaling overhead and increases the number of times that the UE detects DCI, thereby causing the power consumption of the UE to increase.
Disclosure of Invention
The technical problem solved by the invention is how to reduce the power consumption of the user equipment.
In order to solve the above technical problem, an embodiment of the present invention provides a DCI detection method, where the DCI detection method includes: determining a length type of a current DRX period; in the active BWP of a serving cell, selecting a search space set group corresponding to the current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX period; and detecting DCI in the selected search space set group.
Optionally, the number of search space set groups corresponding to BWP activation is the same as the number of length types of DRX cycle, where the length type of the current DRX cycle is represented by the current DRX cycle in all DRX cycles in order of cycle length, and the selecting a search space set group from all search space set groups according to the length type of the current DRX cycle includes: sequencing all the search space set groups according to the detection times of each search space set group of each time slot or each span; and selecting a search space set group with the same sequence as the current DRX period in all DRX periods.
Optionally, the length type of the DRX cycle includes a DRX long cycle and a DRX short cycle, the number of search space set groups corresponding to active BWP is two, and the selecting a search space set group from all search space set groups according to the length type of the current DRX cycle includes: and if the length type of the current DRX period is the DRX short period, selecting the search space set group with more detection times of each time slot or each span in the two search space set groups.
Optionally, the DCI detecting method further includes: and if the scheduling is not obtained in the preset number of DRX short cycles or the scheduling is not obtained in the continuous preset number of DRX short cycles, selecting the search space set group with less detection times of each time slot or each span in the two search space set groups, and continuously detecting the DCI in the selected search space set group.
Optionally, the length type of the DRX cycle includes a DRX long cycle and a DRX short cycle, the number of search space set groups corresponding to active BWP is two, and the selecting a search space set group from all search space set groups according to the length type of the current DRX cycle includes: and if the current DRX period is the DRX long period, selecting a search space set group with less detection times of each time slot or each span in the two search space set groups.
Optionally, the length type of the DRX cycle includes a DRX long cycle and a DRX short cycle, in the active BWP, the DRX short cycle corresponds to two search space set groups, and the selecting a search space set group from all search space set groups according to the length type of the current DRX cycle includes: selecting a search space set group with a large detection frequency from two corresponding search space set groups in an initial preset number of DRX short cycles; and if the scheduling is not obtained in the preset number of DRX short cycles, or the scheduling is not obtained in the continuous preset number of DRX short cycles, or after the initial preset number of DRX short cycles, selecting each time slot or each search space set with less span detection times in the two corresponding search space sets.
Optionally, the determining the length type of the current DRX cycle includes: receiving the incidence relation between the length type of the DRX period sent by the network side and the search space set group; selecting a search space set group from all search space set groups corresponding to the BWP according to the length type of the current DRX cycle includes: and selecting a corresponding search space set group according to the length type of the current DRX period and the incidence relation.
Optionally, the detecting DCI in the selected search space set group includes: detecting DCI in an active BWP of the serving cell; alternatively, DCI is detected in the active BWP of all serving cells.
The embodiment of the invention also discloses a DCI detection device, which comprises: a cycle type determining module, configured to determine a length type of a current DRX cycle; a search space set group selecting module, configured to select, in an active BWP of a serving cell, a search space set group corresponding to a current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX cycle; and the DCI detection module is used for detecting the DCI in the selected search space set group.
The embodiment of the invention also discloses a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the DCI detection method or the search space set switching method are executed.
The embodiment of the invention also discloses user equipment, which comprises a memory and a processor, wherein the memory is stored with a computer program which can be run on the processor, and the processor executes the steps of the DCI detection method or the search space set switching method when running the computer program.
The embodiment of the invention also discloses a base station, which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes the step of the search space set switching method when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the technical scheme of the invention, when the user equipment detects the DCI, the search space set group can be selected according to the length type of the current DRX period so as to be used for detecting the DCI. In the technical scheme of the invention, the user equipment directly selects the search space set group based on the type of the current DRX period without indicating by sending a signaling by a network, so that the number of times of detecting the signaling can be reduced, the power consumption is reduced, and the aim of further saving power is fulfilled.
Further, when scheduling is not obtained within a preset number of DRX short cycles, selecting a search space set group with less detection times of each time slot or each span in two search space set groups, and continuously detecting DCI in the selected search space set group. In the technical scheme of the invention, the user equipment does not obtain scheduling in the preset number of DRX short cycles, which indicates that the scheduling requirement of the user equipment is weakened, and the DCI is detected by switching the search space set group with less detection times, so that the power consumption of the user equipment can be further reduced.
Drawings
Fig. 1 is a flowchart of a DCI detection method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a DCI detection apparatus according to an embodiment of the present invention.
Detailed Description
As described in the background art, in the prior art, the network needs to instruct, through signaling, each time the search space set group is switched, which increases signaling overhead and increases the number of times that the UE detects DCI, thereby increasing the power consumption of the UE.
In the technical scheme of the invention, when the user equipment detects the DCI, the search space set group can be selected according to the length type of the current DRX period so as to be used for detecting the DCI. In the technical scheme of the invention, the user equipment directly selects the search space set group based on the length type of the current DRX period without indicating by sending a signaling by a network, so that the number of times of detecting the signaling can be reduced, the power consumption is reduced, and the aim of further saving power is fulfilled.
The technical scheme of the invention can be applied to 5G (5Generation) communication systems, 4G and 3G communication systems, and various future new communication systems such as 6G and 7G.
The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-event architecture, and the like.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a DCI detection method according to an embodiment of the present invention.
The DCI detection method according to the embodiment of the present invention may be used at the user equipment side, that is, the user equipment may perform each step of the method shown in fig. 1.
Specifically, the DCI detection method may include the steps of:
step S101: determining a length type of a current DRX period;
step S102: and in the active BWP of the serving cell, selecting a search space set group corresponding to the current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX period.
The longer the relative length of the DRX period is, the fewer the detection times of the selected search space set in each time slot are;
step S103: and detecting DCI in the selected search space set group.
It should be noted that the sequence numbers of the steps in this embodiment do not represent a limitation on the execution sequence of the steps.
In the embodiment of the invention, the UE accesses the service cell to establish Radio Resource Control (RRC) connection. To save power, the network configures the UE with Discontinuous Reception (DRX) and may configure DRX cycles of different lengths.
The network may also configure the UE with multiple search space set groups. If the UE configures a plurality of serving cells, each serving cell may configure a plurality of search space set groups, respectively. For each serving cell, one or more BWPs may be configured, and each BWP may configure one or more search space set groups. Each search space set group may contain one or more search space sets. Different serving cells may employ respective corresponding subcarrier spacings such as 15kHz, 30kHz, or 60 kHz. When the UE applies different subcarriers, the number of candidate DCI times (i.e., the number of PDCCH Detection (or Blind Detection) times that can be detected by one timeslot is different. Taking the serving cell with a subcarrier of 15kHz as an example, the UE can support a maximum of 44 DCI detection times in one slot.
For each search space set within the search space set group, the network may configure the number of times the UE needs to detect DCI, the DCI format, the timing to detect DCI, and so on. The number of detections for a search space set group in each slot may be the sum of the DCI number that the UE needs to detect in each slot over all the search space sets contained in the search space set group. It should be noted that other duration units may be adopted to count the total number of DCI times that the UE needs to detect, for example, taking the length of 7 OFDM symbols as a Span (Span) to count the total number of DCI times that the UE needs to detect, and the method disclosed in this patent is also applicable.
Of course, the duration of the span may be any other practicable time length, and the embodiment of the present invention is not limited thereto.
Specifically, one DCI is composed of at least one Control Channel Element (CCE), the number of CCEs constituting one DCI is referred to as an Aggregation level, and the Aggregation level may be 1, 2, 4, 8, or 16. One CCE is composed of 6 Resource Element Groups (REGs), where each REG is a Resource Block (RB) occupying one Orthogonal Frequency Division Multiplexing (OFDM) symbol duration, that is, each REG contains 12 Resource Elements (REs) consecutive in the Frequency domain. Considering that 12 REs may contain demodulation reference signals, there are less than 12 REs in each REG that are actually effectively used for transmitting DCI. The more times the UE needs to detect DCI in a search space set group, the greater the power consumption of the UE, which is not favorable for power saving of the UE.
In the implementation of step S101, the UE may determine the length type of the current DRX cycle in which it is currently located, where the length type of the current DRX cycle represents the relative length of the current DRX cycle and other DRX cycles in all DRX cycles. Wherein, the lengths of all DRX periods configured by the network for the UE are different.
For example, the network configures two DRX cycle length types for the UE, DRX Long cycle (Long DRX) and DRX Short cycle (Short DRX), which may also be referred to as Long DRX cycle and Short DRX cycle. The cycle length of the DRX long cycle is longer than that of the DRX short cycle. When the UE determines that the length type of the current DRX cycle is the DRX short cycle, the UE may determine that the cycle length of the DRX short cycle is shorter in all DRX cycles configured by the UE.
Specifically, the UE may obtain the length type of the current DRX cycle through a Medium Access Control (MAC) layer signaling, that is, the network may instruct the UE to enter the DRX long cycle or short cycle through the MAC layer Control signaling; or, the UE knows the length type of the current DRX cycle through the DRX short cycle timer. Wherein the DRX short cycle timer is configured to count a number of DRX short cycles. For example, the UE has entered 5 DRX short cycles, then the UE may determine whether it is currently in the DRX short cycle according to whether the DRX short cycle timer is expired; if the timer is not overtime, the UE determines that the DRX short cycle is currently in; if the timer has timed out or is not running, the UE needs to go to the DRX long period.
As previously described, each BWP of each serving cell may configure a corresponding search space set group. In the specific implementation of step S102, the UE selects a search space set group from all search space set groups corresponding to the BWP according to the length type of the current DRX cycle. In order to achieve the purpose of power saving, the longer the relative length of the current DRX cycle and other DRX cycles in all DRX cycles is, the fewer the number of detections in each timeslot of the selected search space set is.
In a specific embodiment, the length type of the DRX cycle is selected from a DRX long cycle and a DRX short cycle, and the number of search space set groups is two. Step S102 shown in fig. 1 may include the following steps: and if the length type of the current DRX period is the DRX short period, selecting the search space set group with more detection times from the two search space set groups.
In a variation, if the current DRX cycle is the DRX long cycle, selecting a search space set group with a smaller number of detections from the two search space set groups.
In this embodiment, the network configures two DRX cycle length types, namely, Long DRX (Long DRX) and Short DRX (Short DRX), for the UE. The UE employs the search space set group with the largest number of detections in the Short DRX cycle (i.e., the UE detects DCI on the search space set within the search space set group). And the UE adopts the search space set group with less detection times in the Long DRX period. In other words, the UE determines the DRX cycle according to the MAC layer DRX command, and then determines to use the search space set group corresponding to the DRX cycle. The UE may specifically determine the search space set group applied during short DRX and Long DRX by using the DCI detection times corresponding to the search space set group, where the DCI detection times may be counted according to a Slot or a Span.
It should be noted that the mechanism for the UE to apply short DRX and Long DRX is the same as the existing method, and is not described here again.
In the specific implementation of step S103, the UE detects DCI by using the selected search space set group, that is, the UE detects DCI on the search space set corresponding to the search space set group.
Compared with the prior art that the network needs to indicate the switching of the search space set each time through signaling, the embodiment of the invention adopts an implicit switching search space set mode, does not need the network to send extra signaling for indication, and can reduce the times of detecting the signaling, thereby reducing the power consumption and realizing the aim of further saving power.
In one non-limiting embodiment of the present invention, the number of search space set groups is the same as the number of length types of DRX cycles, and the length type of the current DRX cycle is expressed in the order of cycle length in all DRX cycles of the current DRX cycle. Step S102 shown in fig. 1 may include the following steps: sequencing all the search space set groups according to the DCI detection times of all the search space set groups; and selecting a search space set group with the same sequence as the current DRX period in all DRX periods.
In a specific implementation, all DRX cycles configured by the UE may be ordered in advance according to cycle length, such as from long to short or from short to long, where each type of DRX cycle has a corresponding sequence number. For example, the UE configures three types (i.e. three lengths) of DRX cycles, which are ordered from short to long, and each type of DRX cycle has a corresponding sequence number, e.g. 1, 2, and 3. Correspondingly, the network also configures 3 groups of search space set groups for the UE according to the BWP, when the BWP is in an active state, the UE needs to detect DCI on the search space set group corresponding to the BWP, and when selecting the search space set group, the UE may first rank the search space set groups, for example, rank the search space set groups according to the number of detection times, and then select the search space set group with the rank that is the same as the rank of the current DRX cycle in all DRX cycles.
It should be noted that, when all DRX cycles are ordered from short to long, the search space set groups are ordered from many to few; when all DRX cycles are ordered from long to short, the search space set groups are ordered from few to many, in which case the UE can select the search space set group with the same order as the current DRX cycle in all DRX cycles.
In a non-limiting embodiment of the present invention, step S101 shown in fig. 1 may further include the following steps: and receiving the association relation between the length type of the DRX period sent by the network side and the search space set group. Accordingly, step S102 shown in fig. 1 may include the following steps: and selecting a corresponding search space set group according to the length type of the current DRX period and the incidence relation.
In this embodiment, when configuring the search space set group, the network may directly indicate whether each search space set group is applied to short DRX or long DRX, that is, the network indicates the association relationship between the length type of the DRX cycle and the search space set group to the UE, so that the UE directly determines the search space set group to be used according to the association relationship.
Compared with the embodiment, the embodiment of the invention does not need to calculate the detection times of each search space set group, and can improve the calculation efficiency of the UE.
In one non-limiting embodiment of the present invention, step S102 shown in fig. 1 may include the following steps: selecting a search space set group with a large detection frequency from two corresponding search space set groups in an initial preset number of DRX short cycles; and if the scheduling is not obtained in the preset number of DRX short cycles or after the initial preset number of DRX short cycles, selecting the search space set group with less detection times from the two corresponding search space set groups no matter whether the UE obtains the scheduling or not.
In this embodiment, the network configures a DRX long cycle and a DRX short cycle for the UE, and configures two search space set groups for the UE according to BWP. The DRX Short Cycle counter (DRX-ShortCycleTimer) may contain multiple DRX Short cycles (Short DRX cycles), e.g., a maximum of 16 DRX Short cycles. Once the DRX short cycle counter times out, the UE transitions to the DRX long cycle. The UE typically has scheduling requirements for the first few DRX short periods, and the scheduling requirements for the following DRX short periods are not strong. In this case, the UE uses the search space set with a large number of detections in the first several DRX short cycles, and once the UE does not obtain scheduling in the current DRX short cycle (or does not obtain scheduling in consecutive several DRX short cycles) or after the initial preset number of DRX short cycles, the UE switches to the search space set with a small number of detections.
In a specific implementation, the UE may maintain a timer or a counter to record that no scheduling is obtained for a preset number of consecutive DRX short cycles. This preset number may be 1, or some other integer value below the DRX short cycle number for DRX-ShortCycleTimer.
The embodiment of the invention can use the search space set group with less detection times when the scheduling requirement of the UE is not strong, thereby realizing better power saving.
It can be understood that the specific value of the preset number may be set according to an actual application scenario, and the embodiment of the present invention is not limited thereto.
Accordingly, in this embodiment, the UE uses the search space set group with a smaller number of detections in the DRX long cycle.
In a variation, the DRX short cycle may correspond to two search space set groups (the DCI detection times of the two search space set groups in each time slot or each Span are different), for example, the DCI blind detection times corresponding to one search space set group are 30 times (for example, the DCI blind detection times in one time slot are 30 times), and the DCI blind detection times corresponding to another search space set group are 16 times (one time slot). The DRX long cycle may correspond to a set of search space set groups.
Specifically, a search space set with a large number of detection times is adopted in the first several DRX short cycles of the applied DRX short cycles, and once scheduling is not obtained in the current DRX short cycle or after the first several DRX short cycles, the search space set group with a small number of detection times is switched to. Taking DRX-ShortCycleTimer as 8 short DRX cycles and an initial preset number of DRX short cycles as 4 as an example, when the UE enters the short DRX cycles, the UE starts DRX-ShortCycleTimer, and the UE performs DCI detection in a search space set with a large number of detection times. If the UE does not receive the scheduling information in the first 4 short DRX periods after entering the short DRX periods, the UE carries out DCI detection in the search space set group with less detection times in the next 4 short DRX periods; or the UE directly performs DCI detection on the search space set group with less detection times in the following 4 short DRX periods. And once the DRX-ShortCycleTimer is overtime, the UE enters a long DRX period, and the UE continues to perform DCI detection on the search space set group with less detection times.
In a non-limiting embodiment of the present invention, the UE configures a DRX Short cycle (Short DRX) and a DRX Long cycle (Long DRX), where the DRX Short cycle corresponds to multiple sets of search space set groups (different detection times for each slot or each span) and the DRX Long cycle corresponds to one or multiple sets of search space set groups. That is, the base station configures corresponding search space set groups according to the length type of the DRX cycle of the UE, respectively.
The base station configures the number of search space set groups corresponding to the DRX short cycle and an index (index) through RRC signaling, for example, the base station configures two search space set groups corresponding to the DRX short cycle through RRC signaling, the index is 0 and 1, respectively, and the base station may configure the search space set group corresponding to the DRX short cycle according to each BWP of the serving cell. In the DRX short cycle, the base station may instruct the UE to switch the search space set group through DCI. For example, there may be one bit dedicated to the search space set group indicating whether index0 or 1 is used in DCI. Specifically, the base station decides whether to switch the search space set group according to the scheduling requirement of the UE. For example, the scheduling requirement of the UE becomes strong, and the UE currently uses the search space set group with the smaller detection number, the base station instructs the UE to switch to the search space set group with the larger detection number.
When the UE configures a plurality of serving cells, the UE detects DCI belonging to the UE on a physical downlink control channel on a search space set group detected on an active BWP of each serving cell. For the search space set group to which the DCI indicates an application, the following implementation may be possible: UE receives DCI for switching the search space set group on any one serving cell, and the UE implements switching of the search space set group on all the serving cells; the UE receives DCI for switching search space set groups on one serving cell, and the UE switches the search space set groups only in the serving cell, that is, the DCI controls the switching of the search space set groups only on a single serving cell.
In specific implementation, the UE firstly detects DCI by using a default search space set group, and after detecting DCI, knows whether there is an index of the search space set group in the DCI, and if so, indicates that the search space set group needs to be switched, and switches to the search space set group pointed by the index to perform DCI detection.
In the DRX long period, if only one set of search space set group corresponding to the DRX long period exists, the UE does not need to have an independent bit in DCI to indicate the search space set group when the UE is in the DRX long period; if the DRX long cycle corresponds to multiple sets of search space set groups, the UE needs to have an independent bit in the DCI detected during the DRX long cycle to indicate the applied search space set group.
In the embodiment of the invention, the network configures the search space set groups corresponding to the length types of different DRX cycles, so that the bit indicating the search space set group in the DCI can be effectively reduced when the search space set group is indicated to be switched, thereby reducing the signaling overhead.
Referring to fig. 2, an embodiment of the invention further discloses a DCI detecting apparatus 20. The DCI detecting apparatus 20 may include:
a cycle type determining module 201, configured to determine a length type of a current DRX cycle;
a search space set group selecting module 202, configured to select, in an active BWP of a serving cell, a search space set group corresponding to a current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX cycle, where the longer the relative length is, the fewer detection times of the selected search space set group in each time slot are;
a DCI detecting module 203, configured to detect DCI in the selected search space set group.
In the embodiment of the invention, the user equipment directly selects the search space set group based on the length type of the current DRX period without indicating by sending a signaling by a network, so that the number of times of detecting the signaling can be reduced, the power consumption is reduced, and the aim of further saving power is fulfilled.
For more details of the operation principle and the operation mode of the DCI detecting device 20, reference may be made to the description in fig. 1, which is not described herein again.
The embodiment of the invention also discloses a storage medium, which is a computer readable storage medium and stores a computer program thereon, and the computer program can execute the steps of the method shown in fig. 1 when running. The storage medium may include ROM, RAM, magnetic or optical disks, etc. The storage medium may further include a non-volatile memory (non-volatile) or a non-transitory memory (non-transient), and the like.
The embodiment of the invention also discloses user equipment which can comprise a memory and a processor, wherein the memory is stored with a computer program which can run on the processor. The processor, when running the computer program, may perform the steps of the method shown in fig. 1. The user equipment includes but is not limited to a mobile phone, a computer, a tablet computer and other terminal equipment.
A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a 2G network includes a Base Transceiver Station (BTS), a device providing a base station function in a 3G network includes a node b (nodeb), apparatuses for providing a base station function in a 4G network include evolved node bs (enbs), which, in a Wireless Local Area Network (WLAN), the devices providing the base station function are an Access Point (AP), a device gNB providing the base station function in a New Radio (NR) of 5G, and a node B (ng-eNB) continuing to evolve, the gNB and the terminal communicate with each other by adopting an NR (NR) technology, the ng-eNB and the terminal communicate with each other by adopting an E-UTRA (evolved Universal Terrestrial Radio Access) technology, and both the gNB and the ng-eNB can be connected to a 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system.
The base station controller in the embodiment of the present application is a device for managing a base station, for example, a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, or a device for controlling and managing a base station in a future new communication system.
The network on the network side in the embodiment of the present invention refers to a communication network providing communication services for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.
A terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.
The "plurality" appearing in the embodiments of the present application means two or more.
The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.
The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.
It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM), SDRAM (SLDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions described in accordance with the embodiments of the present application are produced in whole or in part when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.
In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A DCI detection method, comprising:
determining a length type of a current DRX period;
in the active BWP of a serving cell, selecting a search space set group corresponding to the current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX period; and detecting DCI in the selected search space set group.
2. The DCI detecting method of claim 1, wherein the number of search space set groups corresponding to active BWP is the same as the number of DRX cycle length types, and the length type of the current DRX cycle is represented by the current DRX cycle in all DRX cycles in order of cycle length, and the selecting the search space set group from all search space set groups according to the length type of the current DRX cycle comprises:
sequencing all the search space set groups according to the detection times of each search space set group of each time slot or each span;
and selecting a search space set group with the same sequence as the current DRX period in all DRX periods.
3. The DCI detection method of claim 1, wherein the length type of DRX cycle comprises a DRX long cycle and a DRX short cycle, the number of search space set groups corresponding to active BWP is two, and the selecting the search space set group from all the search space set groups according to the length type of the current DRX cycle comprises:
and if the length type of the current DRX period is the DRX short period, selecting the search space set group with more detection times of each time slot or each span in the two search space set groups.
4. The DCI detection method of claim 3, further comprising:
and if the scheduling is not obtained in the preset number of DRX short cycles or the scheduling is not obtained in the continuous preset number of DRX short cycles, selecting the search space set group with less detection times of each time slot or each span in the two search space set groups, and continuously detecting the DCI in the selected search space set group.
5. The DCI detection method of claim 1, wherein the length type of DRX cycle comprises a DRX long cycle and a DRX short cycle, the number of search space set groups corresponding to active BWP is two, and the selecting the search space set group from all the search space set groups according to the length type of the current DRX cycle comprises:
and if the current DRX period is the DRX long period, selecting a search space set group with less detection times of each time slot or each span in the two search space set groups.
6. The DCI detection method of claim 1, wherein the length type of DRX cycle comprises a DRX long cycle and a DRX short cycle, and wherein the DRX short cycle corresponds to two search space set groups in the active BWP, and wherein selecting the search space set group from all the search space set groups according to the length type of the current DRX cycle comprises:
selecting a search space set group with a large detection frequency from two corresponding search space set groups in an initial preset number of DRX short cycles;
and if the scheduling is not obtained in the preset number of DRX short cycles, or the scheduling is not obtained in the continuous preset number of DRX short cycles, or after the initial preset number of DRX short cycles, selecting each time slot or each search space set with less span detection times in the two corresponding search space sets.
7. The DCI detection method of claim 1, wherein the determining the length type of the current DRX cycle is preceded by:
receiving the incidence relation between the length type of the DRX period sent by the network side and the search space set group; selecting a search space set group from all search space set groups corresponding to the BWP according to the length type of the current DRX cycle includes:
and selecting a corresponding search space set group according to the length type of the current DRX period and the incidence relation.
8. The DCI detection method of claim 1, wherein the detecting DCI in the selected search space set group comprises:
detecting DCI in an active BWP of the serving cell;
alternatively, DCI is detected in the active BWP of all serving cells.
9. A DCI detection apparatus, comprising:
a cycle type determining module, configured to determine a length type of a current DRX cycle;
a search space set group selecting module, configured to select, in an active BWP of a serving cell, a search space set group corresponding to a current length type from all search space set groups corresponding to the active BWP according to the length type of the current DRX cycle;
and the DCI detection module is used for detecting the DCI in the selected search space set group.
10. A storage medium having stored thereon a computer program for performing the steps of the DCI detection method of any one of claims 1 to 8 when the computer program is executed by a processor.
11. A user equipment comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the DCI detection method of any one of claims 1 to 8.
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| CN202011467470.0A CN114629611A (en) | 2020-12-14 | 2020-12-14 | DCI detection method and device, storage medium and user equipment |
| PCT/CN2021/131139 WO2022127493A1 (en) | 2020-12-14 | 2021-11-17 | Dci detection method and apparatus, and storage medium and user equipment |
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| WO2020001123A1 (en) * | 2018-06-26 | 2020-01-02 | Oppo广东移动通信有限公司 | Downlink control channel detection method and apparatus, and terminal device |
| WO2020034218A1 (en) * | 2018-08-17 | 2020-02-20 | Oppo广东移动通信有限公司 | Discontinuous transmission method and device |
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| WO2020064908A1 (en) * | 2018-09-28 | 2020-04-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive control-resource-set (coreset) and/or search-space configuration |
| CN111757473B (en) * | 2019-03-28 | 2023-05-09 | 中国移动通信有限公司研究院 | Terminal energy saving method based on bandwidth part |
| CN111867019B (en) * | 2019-04-30 | 2022-04-08 | 中国移动通信有限公司研究院 | Information transmission method, device, related equipment and storage medium |
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| WO2020001123A1 (en) * | 2018-06-26 | 2020-01-02 | Oppo广东移动通信有限公司 | Downlink control channel detection method and apparatus, and terminal device |
| CN110831185A (en) * | 2018-08-10 | 2020-02-21 | 华为技术有限公司 | Communication method and device |
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