Control channel monitoring procedure

Abstract

Methods, systems, and devices are described for wireless communication. One example method of wireless communication includes selecting, by a wireless device, a monitoring behavior for monitoring a control channel. The method also includes monitoring, by the wireless device, the control channel in accordance with the monitoring behavior. The monitoring behavior can include a skip operation that is disabled during which monitoring occurs.

Description

Technical Field

[0001] This document generally deals with wireless communication. Background Technology

[0002] Wireless communication technologies are propelling the world towards an increasingly connected and networked society. The rapid growth and technological advancements in wireless communication have led to greater demands for capacity and connectivity. Other factors, such as energy consumption, equipment cost, spectrum efficiency, and latency, are also important for meeting the needs of various communication scenarios. Next-generation systems and wireless communication technologies need to support an ever-increasing number of users and devices compared to existing wireless networks, such as LTE. Summary of the Invention

[0003] This document relates to methods, systems, and apparatus for monitoring downlink control signals in mobile communication technologies, including 5G and New Radio (NR) communication systems.

[0004] In one exemplary aspect, a wireless communication method is disclosed. The method includes a wireless device selecting monitoring behavior for monitoring a control channel, and the wireless device monitoring the control channel based on the monitoring behavior.

[0005] In another exemplary aspect, a wireless communication method is disclosed. The method includes transmitting monitoring actions for monitoring a control channel from a network device to a wireless device.

[0006] In yet another exemplary aspect, the above-described methods are embodied in processor-executable code and stored in a computer-readable program medium.

[0007] In yet another exemplary embodiment, a device configured or operable to perform the methods described above is disclosed.

[0008] The above and other aspects and their embodiments are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0009] Figure 1A and 1B An example of PDCCH monitoring behavior is illustrated.

[0010] Figure 2 An example of a base station (BS) and user equipment (UE) in wireless communication is shown.

[0011] Figure 3 The illustration shows examples of processes for wireless communication based on some example embodiments of the disclosed technology.

[0012] Figure 4The illustration shows another example of a process for wireless communication based on some example embodiments of the disclosed technology.

[0013] Figure 5 It is a block diagram representation of a method and / or apparatus that can be used to implement the currently disclosed technology. Detailed Implementation

[0014] Examples of fifth-generation (5G) wireless protocols are used to describe certain characteristics. However, the applicability of the disclosed technologies is not limited to 5G wireless systems.

[0015] In existing LTE and 5G 3GPP New Radio (NR) communication systems, User Equipment (UE) determines resources for data transmission based on scheduling information in the Physical Downlink Control Channel (PDCCH). The UE needs to continuously monitor the PDCCH during monitoring periods according to a configured search space set(s) to avoid missing any data scheduling information. The PDCCH monitoring period is determined by a period k. s Duration T in the period s And the offset O associated with the start position of the cycle. s Parameters are determined. For example, PDCCH monitoring behavior may include parameters such as T. s = 1 time slot and k s =Parameters of 2 time slots (e.g.) Figure 1A (As shown). Introducing a discontinuous reception (DRX) mechanism can ensure that the UE avoids some PDCCH monitoring power consumption during DRX-off, as shown in the PDCCH monitoring behavior (e.g. Figure 1B (As shown). Additionally, a wake-up signal, used to indicate whether the UE's higher layers start or not start the DRX-onDuration timer for the next DRX cycle, is triggered to ensure the UE avoids PDCCH monitoring during DRX cycles without data scheduling. However, for sparse traffic models with DRX configurations, especially for longer DRX cycle configurations, the UE's PDCCH monitoring operation also consumes unnecessary power during the DRX active period.

[0016] This paper discloses a power-saving technique that reduces PDCCH monitoring operations by switching or adapting PDCCH monitoring parameters. Simulation results show that the exemplary power-saving technique can reduce UE power consumption compared to traditional PDCCH monitoring methods.

[0017] Figure 2An example of a wireless communication system (e.g., an LTE, 5G, or New Radio (NR) cellular network) including a BS 120 and one or more user equipments (UEs) 111, 112, and 113 is shown. In some embodiments, uplink transmissions (131, 132, 133) include a cyclic shift base sequence constituting a mapping scheme for uplink control transmissions. In some embodiments, downlink transmissions include monitoring downlink control signaling and receiving scheduled data transmissions based on a monitoring scheme. The UE may be, for example, a smartphone, tablet, mobile computer, machine-to-machine (M2M) device, terminal, mobile device, Internet of Things (IoT) device, etc.

[0018] The use of chapter headings and subheadings in this document is for ease of understanding and not to limit the scope of the disclosed technologies and embodiments to certain chapters. Therefore, embodiments disclosed in different chapters can be used interchangeably. Furthermore, the examples used in this document from the 3GPP New Radio (NR) network architecture and 5G protocols are merely for ease of understanding, and the disclosed technologies and embodiments can be practiced in other wireless systems using communication protocols different from 3GPP protocols.

[0019] On the one hand, the CRC used for the DCI format is scrambled with at least one of the following: C-RNTI, MCS-C-RNTI, SP-CSI-RNTI, CS-RNTI, and SFI-RNTI.

[0020] On the other hand, PDCCH monitoring behavior refers to at least one of the following behaviors: PDCCH monitoring based on a search space set, PDCCH monitoring based on a search space set within a group, and PDCCH monitoring based on a list of parameters associated with PDCCH monitoring.

[0021] On the other hand, the PDCCH monitoring behavior change indicates that it includes at least one of the following functions: PDCCH monitoring switching between different search space sets, PDCCH monitoring switching between different groups of search space sets, PDCCH monitoring switching between different parameter lists related to PDCCH monitoring, and PDCCH monitoring switching triggered by behaviors such as application cross-slot scheduling, BWP switching behavior, wake-up or non-wake-up indication, timer start and / or restart, and / or timer expiration event.

[0022] Brief discussion

[0023] In existing LTE and 5G NR communication systems, the UE needs to know the uplink scheduling authorization information used to transmit the Physical Uplink Shared Channel (PUSCH) and the downlink scheduling allocation information used to receive the Physical Downlink Shared Channel (PDSCH). This information is included in the Downlink Control Information (DCI) and is sent to the UE by the base station on the PDCCH. The DCI format is defined to represent a specific purpose. The CRC of the DCI format can be scrambled using at least one type of RNTI. Therefore, the UE should monitor the PDCCH first.

[0024] The UE can perform PDCCH monitoring operations based on the search space set associated with the control resource set and the PDCCH monitoring timing. Relevant PDCCH monitoring parameters are included in the SearchSpace Information Element (IE) as Radio Resource Control (RRC) signaling, where searchSpaceId and controlResourceSetId indicate the search space set index and CORESET index applicable to PDCCH monitoring. The searchSpaceType in the SearchSpace IE indicates the search space type of the PDCCH the UE wants to monitor, i.e., common search space / UE-specific search space, corresponding to different DCI formats or different RNTIs used to scramble the CRC of the DCI to be detected, and the UE-specific search space contains fewer DCI formats or fewer types of RNTIs.

[0025] The duration included in SearchSpace IE is T. k <k s The duration indicates the number of time slots the UE monitors for the PDCCH within the search space set s during the PDCCH monitoring cycle; the monitoringSlotPeriodicityAndOffset indicator included in the SearchSpace IE is k. s Time slot PDCCH monitoring periodicity or cyclicity and O s The PDCCH monitoring offset of the time slot; monitoringSymbolsWithinSlot indicates the first symbol(s) of the CORESET(s) within the time slot used for PDCCH monitoring. The specific PDCCH monitoring timing(s) can be obtained as follows. For the search space set s, if Then the UE determines that (multiple) PDCCH monitoring opportunities exist in the location numbered n. f The frame number is Within the time slot. UE targets the time slot. Start at T sThe search space set s within consecutive time slots monitors the PDCCH, and does not target the next k s -T s The search space set s within a continuous time slot monitors the PDCCH.

[0026] Existing 5G NR power-saving technologies include the following:

[0027] 1) The wake-up indication in DCI format 2-6 can indicate whether the UE will wake up or not in the next DRX cycle, that is, to instruct the higher layer of the UE to start or not start the drx-onDuration timer in the next DRX cycle, which can reduce the power consumption of PDCCH monitoring in the DRX cycle.

[0028] 2) The minimum applicable scheduling offset indication in DCI format 0-1 / 1-1 indicates the minimum time interval between the PDCCH and its scheduled PDSCH or PUSCH. For example, the slot offset (K0) of the PDSCH is defined as the time interval between the PDCCH and its scheduled PDSCH. The slot offset (K2) of the PUSCH is the time interval between the PDCCH and its scheduled PUSCH. This allows the UE to relax the PDCCH decoding processing time to reduce some decoding power consumption; and

[0029] 3) The DCI format 2-6 / 0-1 / 1-1 indicates a similar sleep behavior transition on one or more secondary cells (Scells). This can trigger the UE to perform sleep behavior on some Scells by indicating whether the UE switches to or does not switch to a sleep BWP on the Scell.

[0030] Example 1: PDCCH monitoring of behavioral change function

[0031] The PDCCH monitoring behavior indicated by signaling can represent whether the UE monitors the PDCCH according to the search space set. In some embodiments, the UE can monitor the PDCCH according to the indicated search space set.

[0032] The PDCCH monitoring behavior indicated by signaling can indicate whether the UE monitors the PDCCH according to a search space set in a search space set group. In some embodiments, the UE can monitor the PDCCH according to a search space set in the indicated search space set group. The search space set group can include multiple search space sets. A first-type DCI format can indicate the index of the search space set group in the search space set group list. The number of search space sets in the search space set group list can be M, and the bit width of the field indicating the search space set group in the DCI format can be ceil(log2(M)).

[0033] For example, M can be equal to 2, and the first type of DCI format (e.g., DCI format 2-0) can indicate a bit value "0" to trigger the UE to monitor the PDCCH according to the search space set 0.

[0034] In some embodiments, another PDCCH monitoring behavior based on a PDCCH monitoring behavior indicated by a first type of DCI format may be indicated by a second DCI format. The PDCCH monitoring behavior indicated by the first DCI format may be denoted as the first PDCCH monitoring behavior, and the PDCCH monitoring behavior indicated by the second DCI format may be denoted as the second PDCCH monitoring behavior.

[0035] In some embodiments, the second type of PDCCH monitoring behavior may represent the UE monitoring PDCCH based on multiple search space sets in the current search space group. In some embodiments, the search space sets in the search space set group may be divided into multiple subgroups based on a threshold associated with the PDCCH monitoring parameters of the search space set. The threshold associated with the PDCCH monitoring parameters of the search space set may be at least one of the following: PDCCH monitoring period ks; PDCCH monitoring offset Os; duration Ts; PDCCH monitoring frequency fs; or the number of monitoring symbols within time slot Nsymb. The units of the above PDCCH monitoring parameters ks, Os, and Ts may be time slots. The PDCCH monitoring frequency fs may represent the granularity of the monitoring timing. In some embodiments, the PDCCH monitoring frequency may be equal to the value of Ts / ks.

[0036] In some embodiments, the second type of DCI format can indicate the index of a search space subset within a search space subset of the current search space set. The UE can monitor the PDCCH based on the search space set in the indicated search space subset rather than other search space sets in the current or indicated search space set.

[0037] In some embodiments, if the UE is instructed with an index of a search space subset not included in the applied search space group, the UE may assume that the lowest index of the search space subset in the search space group will be used to determine the timing of subsequent PDCCH monitoring.

[0038] In some embodiments, if the UE is instructed with an index that is not included in the search space set subset of the applied search space set, the UE may assume that all search space sets in the search space set set will be used to determine the timing of subsequent PDCCH monitoring.

[0039] In some embodiments, the second type of DCI format can indicate a threshold. The UE can monitor the PDCCH based on the search space set in the search space set of the current search space set group, and the PDCCH monitoring parameter of each search space set can be less than or greater than the indicated threshold.

[0040] In some embodiments, a threshold can be indicated for the duration Ts, and the UE can monitor the PDCCH based on a search space set or list of PDCCH monitoring parameters that satisfy a duration less than the threshold.

[0041] In some embodiments, a threshold can be indicated for the PDCCH monitoring period ks, and the UE can monitor the PDCCH based on a search space set or list of PDCCH monitoring parameters that satisfy a PDCCH monitoring period greater than the threshold.

[0042] In some embodiments, a threshold can be indicated for the PDCCH monitoring offset Os, and the UE can monitor the PDCCH based on a search space set or list of PDCCH monitoring parameters that satisfy the PDCCH monitoring offset greater than the threshold.

[0043] In some embodiments, a threshold can be indicated for the number of monitoring symbols in time slot Nsymb, and the UE can monitor PDCCH based on a search space set or list of PDCCH monitoring parameters that satisfy the number of monitoring symbols in time slots less than the threshold.

[0044] In some embodiments, a threshold can be indicated for the PDCCH monitoring frequency fs, and the UE can monitor the PDCCH based on a search space set or list of PDCCH monitoring parameters that satisfy PDCCH monitoring frequencies less than the threshold. In some embodiments, the PDCCH monitoring frequency can represent the value of ks / Ts.

[0045] In some embodiments, if no search space set in the search space set satisfies the condition that the value of the PDCCH monitoring parameter is less than or greater than the indicated threshold corresponding to the PDCCH monitoring parameter, the UE may assume that PDCCH monitoring is performed based on the search space set in the search space set that has the minimum value of the corresponding PDCCH monitoring parameter (e.g., duration).

[0046] In some embodiments, if no search space set in the search space set group satisfies the condition that the value of the PDCCH monitoring parameter is less than the indicated threshold, the UE may assume that PDCCH monitoring is performed based on all search space sets in the search space set group.

[0047] In some embodiments, the first type of DCI format may include a group common DCI. In some embodiments, the first type of DCI format may include DCI format 2-0. In some embodiments, the second type of DCI format may include a UE-specific DCI. In some embodiments, the second type of DCI format may include at least one of the following: 1) DCI format 0-1, 2) DCI format 0-2, 3) DCI format 1-1, 4) DCI format 1-2, or 5) DCI format 2-0.

[0048] The PDCCH monitoring behavior indicated by the first type of DCI format can be used to monitor the PDCCH in both the public search space and the UE-specific search space. In some embodiments, the PDCCH monitoring behavior indicated by the second type of DCI format can be used to monitor the PDCCH in the UE-specific search space.

[0049] Example 2: Changes in PDCCH monitoring behavior indicated by DCI format

[0050] This document discloses two exemplary methods for indicating changes in PDCCH monitoring behavior. One method involves a reinterpretation indication of one or more fields in the DCI format. The other method involves an explicit indication of new, additional fields in the DCI format.

[0051] Method 2-1: Reinterpretation of DCI format instruction information

[0052] For a DCI format with a CRC scrambled using a predefined RNTI, if the indications of multiple fields in the DCI format meet predefined conditions, the UE can determine the PDCCH monitoring behavior based on the indications of the predefined fields. The predefined RNTI may include at least one of the following: C-RNTI, MCS-C-RNTI, or SP-CSI-RNTI.

[0053] In some embodiments, the predefined conditions may be at least one of the following:

[0054] 1) Set all bits of the frequency domain resource allocation field to a predefined state;

[0055] 2) The UL-SCH indicator is "0"; or

[0056] 3) All CSI requests are zeros.

[0057] The DCI format can be 0-2. If the predefined condition is the above predefined condition (1), then the predefined RNTI can be C-RNTI, MCS-C-RNTI, or SP-CSI-RNTI.

[0058] The DCI format can be 0-2. If the predefined conditions are the above predefined conditions (2) and (3), then the predefined RNTI can be C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0059] If the predefined condition is the predefined condition (1) above, then the predefined field may include at least one of the following:

[0060] 1) Bandwidth indicator;

[0061] 2) Time-domain resource allocation;

[0062] 3) Downlink allocation index;

[0063] 4) Modulation and coding schemes;

[0064] 5) New data indicator;

[0065] 6) Redundant version;

[0066] 7) HARQ process number;

[0067] 8) Precoding information and number of layers;

[0068] 9) Antenna port;

[0069] 10) TPC commands used for the scheduled PUSCH;

[0070] 11) PTRS-DMRS association;

[0071] 12) Priority indicator; or

[0072] 13) Invalid symbol pattern indicator.

[0073] If the predefined conditions are the predefined conditions (2) and (3) above, then the predefined field may include at least one of the following:

[0074] 1) Bandwidth indicator;

[0075] 2) Frequency domain resource allocation;

[0076] 3) Time-domain resource allocation;

[0077] 4) Modulation and coding schemes;

[0078] 5) New data indicator;

[0079] 6) Redundant version;

[0080] 7) HARQ process number;

[0081] 8) Downlink allocation index;

[0082] 9) Precoding information and number of layers;

[0083] 10) Antenna port;

[0084] 14) TPC commands used for the scheduled PUSCH;

[0085] 15) PTRS-DMRS correlation;

[0086] 11) DMRS sequence initialization;

[0087] 12) Priority indicator;

[0088] 13) Invalid symbol pattern indicator; or

[0089] 14) SCell hibernation indicator.

[0090] Example 2-1

[0091] For example, if:

[0092] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 0_2;

[0093] 2) The CRC of DCI format 1_1 is scrambled using C-RNTI, MCS-C-RNTI, or CS-RNTI;

[0094] 3) The UL-SCH indicator is "0"; and

[0095] 4) All CSI requests are "0"

[0096] The UE interprets multiple fields of DCI format 0_2 as fields indicating PDCCH monitoring behavior; that is, these fields are not used to schedule PDSCH transmissions or indicate SPS PDSCH release or invalid / accidental indication. Furthermore, the UE can interpret the sequence of fields for modulation and coding scheme, new data indicator, redundancy version, HARQ process number, and / or antenna port as a bitmap providing a set of one or more configured PDCCH monitoring parameters in ascending order of parameter set index, where a "0" value in a bit of the bitmap indicates a set of one or more PDCCH monitoring parameters with the corresponding index. Alternatively, the UE may monitor the PDCCH without relying on a set of one or more PDCCH monitoring parameters. For the serving cell, a "1" value in a bit of the bitmap can indicate a set of one or more PDCCH monitoring parameters with the corresponding index, and the UE can monitor the PDCCH based on a set of one or more PDCCH monitoring parameters, where the DL BWP can be the active DL BWP for the serving cell.

[0097] Example 2-2

[0098] In another example, if:

[0099] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 0_2;

[0100] 2) CRC in DCI format 1_1 is scrambled using C-RNTI, MCS-C-RNTI, or SP-CSI-RNTI; and

[0101] 3) If resourceAllocation = resourceAllocationType0 and all bits of the frequency domain resource allocation field in DCI format 0_2 are equal to 0, resourceAllocation = resourceAllocationType1 and all bits of the frequency domain resource allocation field in DCI format 0_2 are equal to 1, or resourceAllocation = dynamicSwitch and all bits of the frequency domain resource allocation field in DCI format 0_2 are equal to 0 or 1, then the UE can consider some or all of the fields in DCI format 0_2 as fields indicating PDCCH monitoring behavior. For example, the UE may consider these fields not to be used for scheduling PDSCH transmission or indicating SPS PDSCH release or invalid / accidental indication, but the UE may interpret the field sequence of modulation and coding scheme, new data indicator, redundancy version, HARQ process number, and / or antenna port as: providing a bitmap for each configured set of (multiple) PDCCH monitoring parameters in ascending order of parameter set index, where a "0" value of a bit in the bitmap indicates a set of one or more PDCCH monitoring parameters with the corresponding index. Furthermore, the UE can monitor the PDCCH without relying on a set of one or more PDCCH monitoring parameters. Additionally, for the serving cell, a "1" value in a bit of the bitmap can indicate a set of one or more PDCCH monitoring parameters with a corresponding index, and the UE can monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters, where the DL BWP can be the active DL BWP for the serving cell.

[0102] In some embodiments, the DCI format can be DCI format 0-1.

[0103] In some embodiments, if the predefined condition is the predefined condition (1) above, the predefined RNTI can be C-RNTI, MCS-C-RNTI, or SP-CSI-RNTI.

[0104] In some embodiments, if the predefined conditions are the predefined conditions (2) and (3) above, then the predefined RNTI is C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0105] In some embodiments, if the predefined condition is the predefined condition (1) described above, the predefined field may include at least one of the following:

[0106] 1) Bandwidth indicator;

[0107] 2) HARQ-ACK bitmap;

[0108] 3) Time-domain resource allocation;

[0109] 4) Frequency hopping flag;

[0110] 5) Modulation and coding schemes;

[0111] 6) New data indicator;

[0112] 7) Redundant version;

[0113] 8) HARQ process number;

[0114] 9) First downlink allocation index;

[0115] 10) Second downlink allocation index;

[0116] 11) Precoding information and number of layers;

[0117] 12) Antenna port;

[0118] 13) DMRS sequence initialization;

[0119] 14) CBG Transmission Information (CBGTI); or

[0120] 15) Priority indicator;

[0121] In some embodiments, if the predefined conditions are the predefined conditions (2) and (3) above, the predefined field may include at least one of the following:

[0122] 1) Bandwidth indicator;

[0123] 2) HARQ-ACK bitmap;

[0124] 3) Frequency domain resource allocation;

[0125] 4) Time-domain resource allocation;

[0126] 5) Modulation and coding schemes;

[0127] 6) New data indicator;

[0128] 7) Redundant version;

[0129] 8) HARQ process number;

[0130] 9) First downlink allocation index;

[0131] 10) Second downlink allocation index;

[0132] 11) Precoding information and number of layers;

[0133] 12) Antenna port;

[0134] 13) DMRS sequence initialization;

[0135] 14) CBG Transmission Information (CBGTI);

[0136] 15) Priority indicator; or

[0137] 16) SCell hibernation indicator.

[0138] Example 2-3

[0139] For example, if:

[0140] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 0_1;

[0141] 2) The CRC of DCI format 0_1 ​​is scrambled using C-RNTI, MCS-C-RNTI, or CS-RNTI;

[0142] 3) The UL-SCH indicator is "0"; and

[0143] 4) The CSI request consists of (multiple) "0"s.

[0144] The UE then treats multiple fields in DCI format 0_1 ​​as fields indicating PDCCH monitoring behavior; that is, these fields are not used to schedule PDSCH transmissions or indicate SPS PDSCH release, invalidation, or accidental indication, and the UE interprets the field sequence of the modulation and coding scheme as: providing a bitmap for each set of configured (multiple) PDCCH monitoring parameters in ascending order of parameter set index, where:

[0145] a) A "0" value in a bit of the bitmap indicates a set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will not monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell, and

[0146] b) A "1" value for a bit in the bitmap indicates the set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell.

[0147] In some embodiments, the DL BWP can be the active DL BWP of the serving cell.

[0148] Example 2-4

[0149] For example, if:

[0150] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 0_1;

[0151] 2) The CRC of DCI format 0_1 ​​is scrambled using C-RNTI, MCS-C-RNTI, or SP-CSI-RNTI; and

[0152] 3) resourceAllocation = resourceAllocationType0 and all bits of the frequency domain resource allocation field in DCI format 0_1 ​​are equal to 0, resourceAllocation = resourceAllocationType1 and all bits of the frequency domain resource allocation field in DCI format 0_1 ​​are equal to 1, or resourceAllocation = dynamicSwitch and all bits of the frequency domain resource allocation field in DCI format 0_1 ​​are equal to 0 or 1.

[0153] The UE can then treat multiple fields in DCI format 0_1 ​​as fields indicating PDCCH monitoring behavior; that is, these fields are not used to schedule PDSCH reception or indicate SPS PDSCH release, invalidation, or accidental indication, and the UE can interpret the field sequence of the modulation and coding scheme as: providing a bitmap for each set of configured (multiple) PDCCH monitoring parameters in ascending order of parameter set index, where:

[0154] a) A "0" value in a bit of the bitmap indicates a set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will not monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell, and

[0155] b) A "1" value for a bit in the bitmap indicates the set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell.

[0156] In some embodiments, the DL BWP can be the active DL BWP of the serving cell.

[0157] In some embodiments, the DCI format may be DCI format 1-2.

[0158] In some embodiments, if the predefined condition is the predefined condition (1) above, the predefined RNTI can be C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0159] In some embodiments, if the predefined condition is the predefined condition (1) described above, then the predefined field includes at least one of the following:

[0160] 1) Bandwidth indicator;

[0161] 2) Time-domain resource allocation;

[0162] 3) Modulation and coding schemes;

[0163] 4) New data indicator;

[0164] 5) Redundant version;

[0165] 6) HARQ process ID;

[0166] 7) Downlink allocation index;

[0167] 8) Multiple antenna ports;

[0168] 9) Transmission configuration instructions;

[0169] 10) DMRS sequence initialization; or

[0170] 11) Priority indicator.

[0171] Example 2-5

[0172] For example, if:

[0173] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 1_2;

[0174] 2) CRC in DCI format 1_2 is scrambled using C-RNTI, MCS-C-RNTI, or CS-RNTI; and

[0175] 3) resourceAllocation = resourceAllocationType0 and all bits of the frequency domain resource allocation field in DCI format 1_2 are equal to 0, resourceAllocation = resourceAllocationType1 and all bits of the frequency domain resource allocation field in DCI format 1_2 are equal to 1, or resourceAllocation = dynamicSwitch and all bits of the frequency domain resource allocation field in DCI format 1_2 are equal to 0 or 1.

[0176] The UE can then interpret DCI format 1_2 as an indication of PDCCH monitoring behavior, rather than scheduling PDSCH reception or indicating SPS PDSCH release or invalid / accidental indication. Furthermore, the UE can interpret the field sequence of the modulation and coding scheme as a bitmap providing a set of configured (multiple) PDCCH monitoring parameters in ascending order of parameter set index, where:

[0177] a) A "0" value in a bit of the bitmap indicates a set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will not monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell, and

[0178] b) A "1" value for a bit in the bitmap indicates the set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell.

[0179] In some embodiments, the DL BWP can be the active DL BWP of the serving cell.

[0180] In some embodiments, the DCI format may be DCI format 1-1.

[0181] In some embodiments, if the predefined condition is the predefined condition (1) above, the predefined RNTI can be C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0182] In some embodiments, if the predefined condition is the predefined condition (1) described above, the predefined field may include at least one of the following:

[0183] 1) Bandwidth indicator;

[0184] 2) Time-domain resource allocation;

[0185] 3) Modulation and coding scheme for transport block 2;

[0186] 4) New data indicator for transport block 2;

[0187] 5) Redundant version of transport block 2;

[0188] 6) HARQ process ID;

[0189] 7) Downlink allocation index;

[0190] 8) PDSCH group index;

[0191] 9) New feedback indicator;

[0192] 10) The number of PDSCH groups requested;

[0193] 11) Multiple antenna ports;

[0194] 12) CBG Transmission Information (CBGTI);

[0195] 13) CBG refresh information (CBGFI);

[0196] 14) DMRS sequence initialization;

[0197] 15) Priority indicator; or

[0198] 16) Minimum applicable scheduling offset indicator.

[0199] In some embodiments, the DCI format may be DCI format 1-1.

[0200] In some embodiments, if the predefined condition is the predefined condition (1) above and all bits of the fields of transport block 2, the modulation and coding scheme, the new data indicator, and the redundancy version are set to the predefined state, then the predefined RNTI can be C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0201] In some embodiments, if the predefined condition is the predefined condition (1) described above and all bits, modulation and coding scheme, new data indicator, and redundancy version of the fields of transport block 2 are set to the predefined state, then the predefined fields may include at least one of the following:

[0202] 1) Bandwidth indicator;

[0203] 2) Time-domain resource allocation;

[0204] 3) Modulation and coding scheme of transport block 1;

[0205] 4) New data indicator for transport block 1;

[0206] 5) Redundant version of transport block 1;

[0207] 6) HARQ process ID;

[0208] 7) Downlink allocation index;

[0209] 8) PDSCH group index;

[0210] 9) New feedback indicator;

[0211] 10) The number of PDSCH groups requested;

[0212] 11) Multiple antenna ports;

[0213] 12) CBG Transmission Information (CBGTI);

[0214] 13) CBG refresh information (CBGFI);

[0215] 14) DMRS sequence initialization;

[0216] 15) Priority indicator;

[0217] 16) Minimum applicable scheduling offset indicator; or

[0218] 17) SCell hibernation indicator.

[0219] Example 2-6

[0220] For example, if:

[0221] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 1_1;

[0222] 2) CRC in DCI format 1_1 is scrambled using C-RNTI, MCS-C-RNTI, or CS-RNTI; and

[0223] 3) If resourceAllocation = resourceAllocationType0 and all bits of the frequency domain resource allocation field in DCI format 1_1 are equal to 0, resourceAllocation = resourceAllocationType1 and all bits of the frequency domain resource allocation field in DCI format 1_1 are equal to 1, or resourceAllocation = dynamicSwitch and all bits of the frequency domain resource allocation field in DCI format 1_1 are equal to 0 or 1, then the UE can interpret DCI format 1_1 as an indication of PDCCH monitoring behavior, rather than scheduling PDSCH reception or indicating SPS PDSCH release or invalid / accidental indication. Furthermore, the UE can interpret the sequence of time domain resource allocation fields as: providing a bitmap for each set of configured (multiple) PDCCH monitoring parameters in ascending order of parameter set index, where:

[0224] a) A "0" value in a bit of the bitmap indicates a set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will not monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell, and

[0225] b) A "1" value for a bit in the bitmap indicates the set of (multiple) PDCCH monitoring parameters with a corresponding index, and the UE will monitor the PDCCH based on the set of (multiple) PDCCH monitoring parameters of the serving cell.

[0226] In some embodiments, the DL BWP can be the active DL BWP of the serving cell.

[0227] For SCell sleep behavior indications, the various skipping techniques described herein may also be available if the CRC of DCI format 1_1 is scrambled with C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0228] Example 2-7

[0229] For example, if:

[0230] 1) The UE monitors the PDCCH based on the search space set used for detecting DCI format 1_1;

[0231] 2) CRC in DCI format 1_1 is scrambled using C-RNTI, MCS-C-RNTI, or CS-RNTI; and

[0232] 3) resourceAllocation = resourceAllocationType0 and all bits of the frequency domain resource allocation field in DCI format 1_1 are equal to 0, resourceAllocation = resourceAllocationType1 and all bits of the frequency domain resource allocation field in DCI format 1_1 are equal to 1, or resourceAllocation = dynamicSwitch and all bits of the frequency domain resource allocation field in DCI format 1_1 are equal to 0 or 1, and

[0233] 4) All bits of the fields in transport block 2, the modulation and coding scheme, the new data indicator, and the redundancy version are all equal to 0.

[0234] The UE can then interpret DCI format 1_1 as either indicating SCell sleep and not scheduling PDSCH reception, or indicating SPS PDSCH release; and for transport block 1, the UE can interpret the following field sequence:

[0235] 1) Modulation and coding schemes,

[0236] 2) New data indicator,

[0237] 3) Redundant version,

[0238] 4) HARQ process ID,

[0239] 5) Multiple antenna ports, and

[0240] 6) DMRS sequence initialization,

[0241] This can be interpreted as: providing a bitmap for each configured SCell in ascending order of the SCell index, where:

[0242] a) A "0" value in a bit of the bitmap indicates the active DL BWP provided to the UE by the dormant-BWP for the corresponding active SCell.

[0243] b) A "1" value in a bit of the bitmap indicates:

[0244] a. If the current active DL BWP is a dormant DL BWP, then the active DL BWP for the corresponding active SCell provided to the UE by first-non-dormant-BWP-ID-for-DCI-inside-active-time, and

[0245] b. If the currently active DL BWP is not a dormant DL BWP, then for the UE, the currently active DL BWP for the corresponding active SCell, and

[0246] c) The UE sets the active DL BWP to the indicated active DL BWP.

[0247] In some embodiments, the DCI format may be DCI format 3-0 or DCI format 3-1.

[0248] In some embodiments, the DCI format may be DCI format 2-0.

[0249] In some embodiments, the DCI format may be DCI format 2-6, and the field used for reinterpretation as PDCCH monitoring behavior is the SCell dormancy behavior indication field. Method 2-2: Explicit Indication Information in DCI Format

[0250] PDCCH monitoring behavior can be indicated by a new field in DCI format. The DCI format can include at least one of the following: 1) DCI format 0-1, 2) DCI format 1-1, 3) DCI format 0-2, 4) DCI format 1-2, 5) DCI format 3-0, 6) DCI format 3-1, 7) DCI format 2-0, or 8) DCI format 2-6. The bit width of the new field can be equal to the value of the function (log2(L)). The function (·) represents rounding up, rounding down, or retaining the original value. L can be the number of sets of PDCCH monitoring parameters.

[0251] L can be determined based on at least one of the following: 1) high-level parameters; 2) the total number of entries in a predefined table or list.

[0252] In some embodiments, high-level parameters can be Rel-17 parameters.

[0253] In some embodiments, high-level parameters can be used to interpret fields in the DCI format.

[0254] If the information indicated by the DCI format satisfies at least one of the predefined conditions (1), (2) and (3) described in Method 2-1, then the new field may not be used to indicate the PDCCH monitoring behavior function.

[0255] If the information indicated by the DCI format satisfies at least one of the predefined conditions described in Method 2-1, then at least one of the predefined fields described in Method 2-1 above can be used to indicate PDCCH monitoring behavior.

[0256] For methods 2-1 and 2-2 above, a new RNTI can be used to scramble the CRC of the DCI format indicating PDCCH monitoring behavior. Specifically, the new RNTI is only used to scramble the CRC of the DCI indicating information related to PDCCH monitoring behavior.

[0257] For methods 2-1 and 2-2 above, the DCI format can be DCI format 2_0, 2_1, 2_3, 2_4, 2_5 and / or 2_6.

[0258] Indicator Bitmap

[0259] In some embodiments, PDCCH monitoring behavior can be indicated by DCI. In some embodiments, PDCCH monitoring behavior can be indicated individually for the serving cell. The bitmap size can be equal to the number of groups of configured SCells, where each bit of the bitmap corresponds to a group of one configured SCell from a plurality of groups of configured SCells. A "0" value in a bit of the bitmap can indicate a first PDCCH monitoring behavior provided by higher-layer parameters for the UE for each active SCell in the corresponding group of configured SCells. A "1" value in a bit of the bitmap can indicate a second PDCCH monitoring behavior provided by higher-layer parameters for the UE for each active SCell in the corresponding group of configured SCells. The active BWP for the configured SCell may not be a BWP provided by the dormant-BWP.

[0260] For each cell's 1-bit indication, there can be two sets of PDCCH monitoring parameters indicated by the DCI for the UE. For example, if the DCI is DCI format 2-6 with a CRC scrambled with PS-RNTI, the bitmap position can immediately follow the position of the wake-up indication bit. In another example, if the DCI is DCI format 2-6 with a CRC scrambled with PS-RNTI, the bitmap position can immediately follow the position of the SCell sleep behavior indication bit. In another example, if the DCI is DCI format 1-1 with a CRC scrambled with C-RNTI or MCS-C-RNTI, the bitmap position can immediately follow the position of the last bit of the field in DCI format 1-1 in Rel-16. In yet another example, if the DCI is DCI format 1-1 with a CRC scrambled with C-RNTI or MCS-C-RNTI, the bitmap position can reuse the bit position of the field corresponding to DCI format 1-1 mentioned in Method 1.

[0261] In some embodiments, the DCI of the bitmap used to indicate PDCCH monitoring behavior can be DCI format 2-6. The bitmap indication of the SCell hibernation indication can be reinterpreted as an indication of PDCCH monitoring behavior.

[0262] Methods 2-3: Implicitly triggered by a timer

[0263] In some embodiments, the UE can switch between a first PDCCH monitoring action and a second PDCCH monitoring action.

[0264] PDCCH monitoring behavior changes can be triggered by events.

[0265] In some embodiments, the event can be at least one of the following:

[0266] 1) The UE detects the PDCCH;

[0267] 2) The UE did not detect the PDCCH during the timer duration;

[0268] 3) The timer decrements to 0; or

[0269] 4) The timer expires.

[0270] In some embodiments, the PDCCH monitoring frequency of the first PDCCH monitoring behavior may be lower than the PDCCH monitoring frequency of the second PDCCH monitoring behavior.

[0271] The transition of PDCCH monitoring behavior from the second PDCCH monitoring behavior to the first PDCCH monitoring behavior can be triggered by an event.

[0272] In some embodiments, the event can be at least one of the following:

[0273] 1) The UE did not detect the PDCCH during the timer duration;

[0274] 2) The timer decrements to 0; or

[0275] 3) The timer expires.

[0276] In some embodiments, the timer can be configured by higher-level parameters and applied to at least one of the following methods:

[0277] 1) The timer is configured for the specific cell;

[0278] 2) The timer is configured for the UE;

[0279] 3) The timer is configured for the specific frequency band;

[0280] 4) The timer is configured for the serving cell group; or

[0281] 5) The timer is configured for the main cell.

[0282] If at least one of the above events can trigger a change in PDCCH monitoring behavior, the UE can monitor the PDCCH in the cell's active BWP based on the PDCCH monitoring behavior after the handover.

[0283] In some embodiments, a cell can be at least one of the following:

[0284] 1) The total number of activated SCells in the UE; or

[0285] 2) The UE's primary cell.

[0286] In some embodiments, the timer may be decremented according to at least one of the following first type conditions:

[0287] 1) After each time slot during the activity period;

[0288] 2) One millisecond after the activity period;

[0289] 3) After each time slot in the active DL BWP of the serving cell; or

[0290] 4) After the UE monitors the PDCCH carrying a specific DCI in the active DL BWP of the serving cell.

[0291] In some embodiments, the timer may be decremented according to at least one of the following second-type conditions:

[0292] 1) After each time slot in which the UE monitors the PDCCH for DCI detection;

[0293] 2) After each monitoring opportunity;

[0294] 3) After each PDCCH monitoring duration of the search space set configured by high-level parameters;

[0295] 4) After each PDCCH monitoring cycle of the search space set configured by high-level parameters; or

[0296] 5) After each span.

[0297] In some embodiments, the timer may be decremented according to at least one of the following third-type conditions:

[0298] 1) After each slot or symbol when the UE decodes the DCI and does not indicate PDCCH monitoring behavior;

[0299] 2) After each slot or symbol of the PDCCH monitored by the UE for detecting the scheduling DCI; or

[0300] 3) After the UE monitors each slot or symbol of the PDCCH using the DCI that indicates the PDCCH monitoring behavior indication information.

[0301] In some embodiments, the UE decrements the timer value by 1 when at least one of the following conditions is met:

[0302] 1) After each time slot / symbol during the activity period;

[0303] 2) One millisecond after the activity period;

[0304] 3) In the active downlink (DL) bandwidth portion (BWP) of the serving cell, after each time slot of the radio device monitoring and control channel to detect the DCI;

[0305] 4) After each monitoring opportunity;

[0306] 5) After the duration of monitoring for each control channel in the search space;

[0307] 6) After each span;

[0308] 7) After a subframe; or

[0309] 8) After the wireless device decodes the DCI and does not indicate each time slot skipped by the control channel.

[0310] In some embodiments, the timing of monitoring can be determined based on a specific search space set.

[0311] In some embodiments, a particular search space set can be at least one of the following:

[0312] 1) Type-3 CSS set; and

[0313] 2) USS set.

[0314] In some embodiments, the span can be the number of consecutive symbols in a time slot in which the UE is configured to monitor a PDCCH candidate.

[0315] In some embodiments, the span can be three consecutive symbols in a time slot where the UE is configured to monitor a PDCCH candidate.

[0316] In some embodiments, the scheduling DCI may be a DCI used to schedule PUSCH and / or PDSCH transmissions.

[0317] In some embodiments, the scheduling DCI can be a DCI format 0-1 / DCI format 1-1 / DCI format 0-2 / DCI format 1-2 used to indicate information related to PUSCH and / or PDSCH transmission.

[0318] In some embodiments, the UE does not decrement the timer value when the UE is in an external activity period.

[0319] In some embodiments, the timer can be reset after a time slot or symbol when at least one of the following events occurs:

[0320] 1) The UE receives the DCI;

[0321] 2) The UE detects the PDCCH;

[0322] 3) The UE monitors the PDCCH in the last time slot of the PDCCH monitoring duration;

[0323] 4) The UE satisfies the last time slot of the PDCCH monitoring cycle;

[0324] 5) The UE switches to a PDCCH monitoring behavior that is different from the current PDCCH monitoring behavior.

[0325] In some embodiments, the timer can be reset after a time slot or symbol when at least one of the following events occurs:

[0326] 1) If the BWP handover operation is triggered by DCI, then the UE completes the BWP handover; or

[0327] 2) If the BWP handover is triggered by DCI, the UE completes the PDSCH / PUSCH transmission scheduled by DCI.

[0328] In some embodiments, when DRX is configured, the timer can be reset after a slot or symbol when at least one of the following events occurs:

[0329] 1) Start or restart drx-onDurationtimer; or

[0330] 2) Start or restart the drx-Inactivity timer.

[0331] In some embodiments, if the timer value is the number of time slots, then the timer value may require parameter set conversion when the parameter set (numerology) changes due to BWP switching. For example, the timer's estimated value = function(timer * ... The function (·) represents rounding, rounding up, rounding down, or retaining the original value. μnew is the parameter set of the new active BWP after the BWP switch, and μold is the parameter set of the old BWP that was activated before the BWP switch. The purpose of parameter set conversion is to align the absolute time of the timer values.

[0332] In some embodiments, the timer value can be configured by BWP.

[0333] In some embodiments, the timer value can be configured per UE.

[0334] In some embodiments, the timer value can be configured per serving cell.

[0335] Example 3: UE behavior that reports information related to PDCCH monitoring behavior indications

[0336] Method 3-1: UE reports information after detecting DCI format

[0337] The UE can perform a reporting action based on at least one of the following events:

[0338] 1) Detect DCI format,

[0339] 2) Receive instructions related to PDCCH monitoring activities, or

[0340] 3) High-level parameters were provided.

[0341] In some embodiments, the DCI format may be at least one of the following: 1) DCI format 1-1, 2) DCI format 1-2, or 3) DCI format 3-1.

[0342] In some embodiments, a specific number of high-level parameters can be configured.

[0343] Example 3-1

[0344] The reporting behavior can represent the process by which the UE reports HARQ-ACK information. If the UE detects that the DCI format can indicate SCell sleep behavior and PDCCH monitoring behavior, and the higher-layer parameter is pdsch-HARQ-ACK-Codebook=dynamic,

[0345] Then the UE can generate 2 HARQ-ACK information bits.

[0346] - One bit can indicate whether the UE receives SCell sleep behavior, and

[0347] - Another person indicated whether the UE could receive PDCCH monitoring behavior.

[0348] In some embodiments, if the UE receives the information, the value of this bit can be 1. Otherwise, the value of this bit can be 0. In some embodiments, the DCI format can be at least one of the following: 1) DCI format 1-1, or 2) DCI format 1-2.

[0349] In some embodiments, the MSB of the HARQ_ACK information bit can indicate whether the UE has received SCell sleep behavior, and the LSB of the HARQ_ACK information bit can indicate whether the UE has received PDCCH monitoring behavior.

[0350] In some embodiments, the LSB of the HARQ_ACK information bit can indicate whether the UE has received SCell sleep behavior, and the MSB of the HARQ_ACK information bit can indicate whether the UE has received PDCCH monitoring behavior.

[0351] Example 3-2

[0352] The reporting behavior can represent the process by which the UE reports HARQ-ACK information. If the UE detects that the DCI format indicates either SCell sleep behavior or PDCCH monitoring behavior, and the higher-layer parameter is pdsch-HARQ-ACK-Codebook=dynamic,

[0353] Then the UE can generate a HARQ-ACK bit.

[0354] - This bit can indicate whether the UE has received PDCCH monitoring behavior, wherein if the UE has received the information, the value of this bit can be 1. Otherwise, the value of this bit can be 0. In some embodiments, the DCI format can be at least one of the following: 1) DCI format 1-1, or 2) DCI format 1-2.

[0355] A HARQ-ACK bit value of 0 indicates NACK, while a HARQ-ACK bit value of 1 indicates ACK.

[0356] Method 3-2: UE reports information to determine the indication information for the next DCI format.

[0357] The UE can detect the DCI format indicating information associated with the following:

[0358] 1) Information reported by the UE

[0359] 2) Current PDCCH monitoring behavior, and

[0360] 3) High-level parameters.

[0361] In some embodiments, the information reported by the UE can be used for DL ​​BWP in the cell. The information reported by the UE can represent PDCCH monitoring behavior.

[0362] In some embodiments, PDCCH monitoring behavior can be at least one of the following:

[0363] 1) List of PDCCH monitoring parameters;

[0364] 2) A set of PDCCH monitoring parameters;

[0365] 3) Search the list of space sets;

[0366] 4) A set of search spaces; or

[0367] 5) Search space set.

[0368] The DCI format is at least one of the following: 1) DCI format 1-1, 2) DCI format 1-2, or 3) DCI format 3-1.

[0369] In some embodiments, high-level parameters can be configured to enable PDCCH monitoring behavior change indication.

[0370] In some embodiments, high-level parameters can be configured to define a set of parameters to determine PDCCH monitoring behavior.

[0371] Example 3-3

[0372] The UE can monitor the PDCCH based on a set of PDCCH monitoring parameters. The UE can also report information including another set of PDCCH monitoring parameters. The gNB can receive the information reported by the UE and send DL signaling with a CRC scrambled with C-RNTI, including indications related to PDCCH monitoring behavior based on the reported parameters. The UE can detect the DL signaling with the CRC scrambled with C-RNTI and switch PDCCH monitoring behavior based on the information indicated by the DL signaling.

[0373] Example 4: The type of DL signaling monitored by the UE is applied to PDCCH monitoring behavior.

[0374] The PDCCH monitoring behavior indicated by DCI can provide the UE with a monitoring opportunity to monitor the set of PDCCH candidates.

[0375] In some embodiments, the set of PDCCH candidates may include at least one of the following:

[0376] 1) DCIs with CRC scrambled using RNTI included in the Type3-CSS set; and / or

[0377] 2) DCIs with CRC scrambled with RNTI included in the CSS set.

[0378] In some embodiments, the set of PDCCH candidates may include at least one of the following:

[0379] 1) DCI with CRC scrambled using C-RNTI;

[0380] 2) DCI with CRC scrambled using SP-CSI-RNTI;

[0381] 3) DCI with CRC scrambled using MCS-C-RNTI; or

[0382] 4) DCI with CRC scrambled using CS-RNTI.

[0383] In some embodiments, the set of PDCCH candidates may include at least one of the following:

[0384] 1) When DRX is configured, DCIs with CRC scrambled using RNTI detected during the active period; or

[0385] 2) DCIs with CRC scrambled by RNTI detected in the main cell.

[0386] In some embodiments, the RNTI included in the Type-3 CSS set may be INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, CI-RNTI, or PS-RNTI, C-RNTI, MCS-C-RNTI, or (multiple) CS-RNTI.

[0387] In some embodiments, the RNTIs included in the USS set may be C-RNTI, MCS-C-RNTI, SP-CSI-RNTI, (multiple) CS-RNTI, SL-RNTI, SL-CS-RNTI, or SL-L-CS-RNTI.

[0388] Example 5: Scenario where the UE monitors the PDCCH based on the indicated PDCCH monitoring behavior.

[0389] The UE can detect a PDCCH with information indicating PDCCH monitoring behavior in a first-type serving cell. The UE can monitor the PDCCH in a second-type serving cell based on the indicated PDCCH monitoring behavior.

[0390] In some embodiments, the first type of serving cell may be at least one of the following:

[0391] 1) Primary cell, including PCcell, PSCell, or SpCell;

[0392] 2) Includes secondary cells of (multiple) SCells under scheduling;

[0393] In some embodiments, the first type of serving cell may be at least one of the following:

[0394] 1) Secondary cells including activated BWPs;

[0395] 2) Secondary cells including dormant BWPs;

[0396] In some embodiments, the first type of serving cell may be at least one of the following:

[0397] 1) Serving cells without DRX configuration;

[0398] 2) Serving cells with DRX configuration; or

[0399] 3) Serving cells with auxiliary DRX group configuration.

[0400] In some embodiments, the second type of serving cell may be at least one of the following:

[0401] 1) Primary cell, including PCcell, PSCell, or SpCell;

[0402] 2) Includes secondary cells of (multiple) SCells under scheduling;

[0403] 3) Secondary cells including activated DL BWPs;

[0404] 4) Secondary cells including dormant BWPs;

[0405] In some embodiments, the second type of serving cell may be at least one of the following:

[0406] 1) Serving cells without DRX configuration;

[0407] 2) Serving cells with DRX configuration; or

[0408] 3) Serving cells with auxiliary DRX group configuration.

[0409] The UE can monitor the PDCCH containing information indicating PDCCH monitoring behavior during the first type of duration. The UE can monitor the PDCCH according to the indicated PDCCH monitoring behavior during the second type of duration.

[0410] In some embodiments, the duration of the first type can be at least one of the following:

[0411] 1) Configure the duration of DRX activation when configuring DRX; or

[0412] 2) Activity time when configuring DRX;

[0413] In some embodiments, the duration of the first type can be at least one of the following:

[0414] 1) Activity time when configuring auxiliary DRX groups;

[0415] 2) Activity time for both DRX and auxiliary DRX groups.

[0416] In some embodiments, the duration of the first type can be at least one of the following:

[0417] 1) External activity time when configuring DRX;

[0418] 2) External activity time when configuring auxiliary DRX groups;

[0419] 3) External activity time for both DRX and auxiliary DRX groups; or

[0420] 4) Time when DRX is not configured.

[0421] In some embodiments, the second type of duration can be at least one of the following:

[0422] 1) Activity time other than the duration of DRX being enabled when configuring DRX;

[0423] 2) Activity time when configuring DRX;

[0424] 3) Activity time when configuring auxiliary DRX groups; or

[0425] 4) Activity time for both DRX and auxiliary DRX groups;

[0426] In some embodiments, the second type of duration can be at least one of the following:

[0427] 1) External activity time when configuring DRX;

[0428] 2) External activity time when configuring auxiliary DRX groups;

[0429] 3) External activity time for both DRX and auxiliary DRX groups; or

[0430] 4) Time when DRX is not configured.

[0431] Instructions for bundling with other features

[0432] In some embodiments, the PDCCH monitoring behavior indicated by the DCI can be triggered by at least one of the following events:

[0433] 1) The minimum applicable K0 value is greater than 0;

[0434] 2) The minimum applicable K2 value is greater than 0.

[0435] In some embodiments, PDCCH monitoring behavior indicated by DCI can be triggered by a hibernation BWP indicator on SCell.

[0436] In some embodiments, PDCCH monitoring behavior indicated by DCI can be triggered by a non-wake-up indication indicated by DCI format 2-6.

[0437] In some embodiments, the PDCCH monitoring behavior indicated by the DCI can be triggered by a PDCCH skipping behavior during the PDCCH skipping duration indicated by the DCI. As described, a PDCCH skipping behavior can mean that the UE does not monitor the PDCCH during the PDCCH skipping duration.

[0438] In some embodiments, when the UE satisfies the last slot of the DRX activity time during the DRX cycle, a PDCCH monitoring action indicated by the DCI can be triggered.

[0439] In some embodiments, when the UE does not detect DCI format 2-6 and does not provide ps-WakeupOrNot or ps-WakeupOrNo is set to false, a PDCCH monitoring action indicated by DCI can be triggered.

[0440] In some embodiments, another PDCCH monitoring action indicated by DCI may be triggered by at least one of the following events:

[0441] 1) The minimum applicable K0 value is equal to 0;

[0442] 2) The minimum applicable K2 value is equal to 0;

[0443] 3) The active BWP of SCell is a non-dormant BWP;

[0444] 4) Wake-up indication as specified in DCI format 2-6;

[0445] 5) Activity time during the DRX cycle; or

[0446] 6) The UE did not detect DCI format 2-6 and ps-WakeupOrNot was set to true.

[0447] For cross-BWP scheduling, PDCCH monitoring behavior indicators can be used for all active DL BWPs.

[0448] For cross-carrier scheduling, PDCCH monitoring behavior indicators can be used for all scheduled cells.

[0449] In some embodiments, if the DCI instructs the UE to change its PDCCH monitoring behavior, the UE can change its PDCCH monitoring behavior after completing the BWP handover behavior.

[0450] In some embodiments, if the DCI instructs the UE to perform a PDCCH monitoring behavior change, the UE can perform the PDCCH monitoring behavior change after receiving the PDSCH or sending the PUSCH.

[0451] In some embodiments, during application latency, the UE may not expect to receive another PDCCH monitoring behavior change indication.

[0452] In some embodiments, during application delays, the UE may not expect to receive multiple DCIs indicating PDCCH monitoring behavior transitions with different information during the same time slot.

[0453] In some embodiments, during application delays, the UE may not expect to receive multiple DCIs indicating PDCCH monitoring behavior transitions with different information over multiple consecutive time slots.

[0454] In some embodiments, application latency may be associated with at least one of the following:

[0455] 1) Application latency of minimum scheduling offset limit;

[0456] 2) BWP switching; or

[0457] 3) SCell activation / deactivation.

[0458] In some embodiments, if the UE is triggered to perform a PDCCH monitoring behavior transition during application latency, the PDCCH monitoring behavior transition triggered by the timer may be unavailable, and the timer may be reset.

[0459] In some embodiments, if the UE is instructed or triggered to perform the same PDCCH monitoring behavior as the current PDCCH monitoring behavior, the UE may not perform a PDCCH monitoring behavior change.

[0460] In some embodiments, a first PDCCH monitoring action can be indicated to the UE using a first method. If the UE triggers a second PDCCH monitoring action using a second method during the first application delay, and the first application delay differs from the second application delay, the UE can perform at least one of the following events:

[0461] 1) The UE performs PDCCH monitoring according to the first PDCCH monitoring behavior indicated by the first method, and ignores the second PDCCH monitoring behavior indicated by the second method;

[0462] 2) The UE performs PDCCH monitoring based on the second PDCCH monitoring behavior indicated by the second method;

[0463] 3) The UE performs PDCCH monitoring based on the relatively sparse PDCCH monitoring timing between the first PDCCH monitoring action and the second PDCCH monitoring action;

[0464] 4) The UE performs PDCCH monitoring by selecting one PDCCH monitoring behavior between the first monitoring behavior and the second monitoring behavior according to the PDCCH monitoring behavior configured by the higher layer parameters;

[0465] 5) The UE performs PDCCH monitoring by selecting one of the different PDCCH monitoring parameters from the set of different PDCCH monitoring parameters in the configuration list, based on the PDCCH monitoring behavior configured by higher-layer parameters; or

[0466] 6) The UE can ignore both the first PDCCH monitoring behavior and the second PDCCH monitoring behavior.

[0467] In some embodiments, the first method may be at least one of the following:

[0468] 1) DCI indication;

[0469] 2) Triggered by a timer; or

[0470] 3) High-level parameter configuration.

[0471] In some embodiments, the second method may be at least one of the following:

[0472] 1) DCI indication;

[0473] 2) Triggered by a timer; or

[0474] 3) High-level parameter configuration.

[0475] In some embodiments, the first method may be the same as the second method.

[0476] In some embodiments, the first method may differ from the second method.

[0477] In some embodiments, the first PDCCH monitoring action may be indicated earlier than the second PDCCH monitoring action.

[0478] Example 6: Application Delay for PDCCH Monitoring Behavior

[0479] If the UE is monitoring the PDCCH according to the current PDCCH monitoring behavior and is provided with another PDCCH monitoring behavior, the UE can monitor the PDCCH according to the other PDCCH monitoring behavior after a predefined application delay.

[0480] In some implementations, application latency can be determined by at least one of the following:

[0481] 1) The remaining symbols in the time slot after receiving the PDCCH indicating PDCCH monitoring behavior;

[0482] 2) Reported values ​​from candidate values ​​of application latency;

[0483] 3) The SCS value of BWP; or

[0484] 4) High-level parameters.

[0485] In some embodiments, candidate values ​​for application latency can be associated with the value of the SCS of the BWP.

[0486] In some embodiments, the BWP can be at least one of the following:

[0487] 1) Current activity BWP;

[0488] 2) BWP indicated by DCI;

[0489] 3) BWP configured by high-level parameters;

[0490] 4) The BWP with the highest SCS value in the primary cell;

[0491] 5) The BWP with the largest SCS value among the secondary cells being scheduled; or

[0492] 6) The BWP with the largest SCS value among the primary cell and the dispatched secondary cell.

[0493] In some embodiments, if the DCI instructs the UE to perform a PDCCH monitoring behavior transition, the UE can perform the PDCCH monitoring behavior transition after an application delay.

[0494] For cross-carrier scheduling

[0495] Cross-carrier scheduling can occur when a UE receives DCI in the scheduling cell and transmits or receives data in the scheduled cell. The scheduling cell and the scheduled cell can be the same cell or different cells.

[0496] In some embodiments, PDCCH monitoring behavior can be configured per BWP. Cross-carrier scheduling DCIs can also indicate PDCCH monitoring behavior. If another DCI indicates a BWP handover of the scheduling cell during the application delay, the UE may not perform a PDCCH monitoring behavior transition after the application delay.

[0497] In some embodiments, PDCCH monitoring behavior can be configured per UE or per cell. Cross-carrier scheduling DCIs can also indicate monitoring behavior. If another DCI indicates a BWP handover of the scheduling cell during the application delay, the UE can perform a PDCCH monitoring behavior transition after the application delay.

[0498] In some embodiments, the unit of application delay may be a time slot or a symbol.

[0499] For example, application delay = function(application delay * ... The function (·) represents rounding, rounding up, rounding down, or retaining the original value. μnew is the parameter set of the new active BWP in the scheduling cell after BWP handover, and μold is the parameter set of the old BWP in the scheduling cell activated before BWP handover. The purpose of parameter set conversion is to align the absolute time of application delay values ​​between BWPs with different SCS values.

[0500] In some embodiments, cross-carrier scheduling DCI can indicate PDCCH monitoring behavior, and during application delays, the UE may not expect to receive DCI indicating BWP handover.

[0501] Instructions and restrictions

[0502] If the DCI indicates a change in PDCCH monitoring behavior and a minimum scheduling offset limit to the UE, the UE can monitor the PDCCH according to the indicated PDCCH monitoring behavior after the application delay of the minimum scheduling offset limit. In some embodiments, the DCI can be DCI format 0-1 or DCI format 1-1.

[0503] If the DCI indicates a change in PDCCH monitoring behavior to the UE via DL data scheduling, the UE may not expect to monitor the PDCCH according to the indicated PDCCH monitoring behavior during at least one of the following periods:

[0504] 1) The UE receives the scheduled PDSCH;

[0505] 2) The UE reports HARQ-ACK information on the PUCCH corresponding to the scheduled PDSCH; or

[0506] 3) The UE reports HARQ-ACK information on the PUSCH corresponding to the scheduled PDSCH.

[0507] If the DCI indicates a change in PDCCH monitoring behavior to the UE via DL data scheduling, the UE may not expect to monitor the PDCCH according to the indicated PDCCH monitoring behavior during the timer duration.

[0508] In some embodiments, if DRX is configured, the timer can be drx-RetransmissionTimerDL.

[0509] If the DCI indicates a change in PDCCH monitoring behavior to the UE via UL data scheduling, the UE may not expect to monitor the PDCCH according to the indicated PDCCH monitoring behavior during at least one of the following periods:

[0510] 1) The UE sends the scheduled PUSCH;

[0511] 2) The UE sends the scheduled PUCCH; or

[0512] 3) The UE receives feedback information from the gNB corresponding to the scheduled UL data.

[0513] If the DCI indicates a change in PDCCH monitoring behavior to the UE via UL data scheduling, the UE may not expect to monitor the PDCCH according to the indicated PDCCH monitoring behavior during the timer duration.

[0514] In some embodiments, if DRX is configured, the timer can be drx-RetransmissionTimerUL.

[0515] The UE may not expect to perform PDCCH monitoring based on indicated and / or triggered PDCCH monitoring behavior during application latency periods corresponding to at least one of the following behaviors:

[0516] 1) BWP switching indicated by DCI;

[0517] 2) BWP switching triggered by a timer;

[0518] 3) Cross-carrier scheduling indication;

[0519] 4) Cross-BWP scheduling instructions;

[0520] 5) Minimum applicable scheduling offset indication; or

[0521] 6) SCell activation / deactivation indicator.

[0522] When DRX is configured, the UE may not expect to perform PDCCH monitoring based on indicated and / or triggered PDCCH monitoring behavior after at least one of the following:

[0523] 1) The last slot and / or symbol of the active time of the DRX cycle;

[0524] 2) The last time slot and / or symbol of the timer duration for drx-onDurationTimer; or

[0525] 3) The last slot and / or symbol of the timer duration for drx-InactivityTimer.

[0526] When DRX is configured, the UE may not expect to perform PDCCH monitoring based on indicated and / or triggered PDCCH monitoring behavior during at least one of the following periods:

[0527] 1) The timer duration of drx-RetransmissionTimerDL;

[0528] 2) The timer duration of drx-RetransmissionTimerUL; or

[0529] 3) The duration of the ra-ContentionResolutionTimer timer.

[0530] When DRX is configured, the UE may not expect to perform PDCCH monitoring based on indicated and / or triggered PDCCH monitoring behavior during at least one of the following periods:

[0531] 1) Process: A scheduling request is sent on the PUCCH and is pending; or

[0532] 2) Procedure: After successfully receiving a random access response for a random access preamble not selected by the MAC entity in a contention-based random access preamble, a PDCCH indicating a new transmission addressing to the MAC entity has not yet been received.

[0533] When DRX is configured, the UE may not expect to perform PDCCH monitoring based on indicated and / or triggered PDCCH monitoring behavior during at least one of the following periods:

[0534] 1) The timer duration of drx-HARQ-RTT-TimerDL; or

[0535] 2) The timer duration of drx-HARQ-RTT-TimerUL.

[0536] In some embodiments, the indicated and / or triggered PDCCH monitoring behavior may differ from the current PDCCH monitoring behavior.

[0537] Figure 3 The illustration shows examples of processes for wireless communication based on some example embodiments of the disclosed technology.

[0538] Some embodiments may preferably combine the following solutions described herein.

[0539] 1. A method for wireless communication (e.g., Figure 3 The method 300 described herein includes: selecting (310) a monitoring behavior for monitoring a control channel by a wireless device; and monitoring (320) the control channel based on the monitoring behavior.

[0540] 2. The method according to Solution 1, wherein the monitoring behavior is selected based on monitoring configuration information received from the network device.

[0541] 3. The method according to any one of solutions 1-2, wherein the control channel is a physical downlink control channel (PDCCH), the monitoring behavior is a PDCCH monitoring behavior, and the radio device is a user equipment (UE).

[0542] 4. The method according to any one of solutions 1-3, wherein the PDCCH monitoring behavior represents monitoring the PDCCH according to a search space set in a search space set group.

[0543] 5. The method according to any one of solutions 1-4, wherein the UE monitors the PDCCH according to multiple search space sets in the search space set group.

[0544] 6. The method according to Solution 4, wherein the PDCCH monitoring behavior is indicated by a downlink control information (DCI) format that indicates a set of UE information.

[0545] 7. The method according to Solution 5, wherein the PDCCH monitoring behavior is indicated by the downlink control information (DCI) format of the scheduled data transmission.

[0546] 8. The method according to any one of solutions 1 and 5, wherein the PDCCH monitoring parameters of the plurality of search space sets satisfy at least one of the following conditions: the PDCCH monitoring period Ts is greater than a threshold; the PDCCH monitoring offset Os is greater than a threshold; the duration ks is less than a threshold; the number of monitoring symbols in the time slot is less than a threshold; or the PDCCH monitoring frequency is less than a threshold, wherein the PDCCH monitoring frequency represents the value of ks / Ts.

[0547] 9. The method according to any one of solutions 1-8, wherein the threshold of the PDCCH monitoring parameter of the plurality of search space sets is configured by higher-level parameters.

[0548] 10. The method according to any one of solutions 1-9, wherein the threshold of the PDCCH monitoring parameter is indicated by DCI.

[0549] 11. The method according to any one of solutions 1-2, wherein the monitoring behavior is indicated by downlink signaling, wherein the downlink signaling schedules data transmission.

[0550] 12. The method according to any one of solutions 1-2, wherein the monitoring behavior is indicated by downlink signaling, which does not schedule data transmission.

[0551] 13. The method according to any one of solutions 1-2, wherein the monitoring behavior is triggered by a timer configured by high-level parameters.

[0552] 14. The method according to Solution 11, wherein at least one field of the downlink signaling indicates only the monitoring behavior, wherein the bit width of the at least one field is determined by higher-layer parameters.

[0553] 15. The method according to solution 12, wherein at least one field of the downlink signaling is reused to indicate the monitoring behavior of at least one event.

[0554] 16. The method according to Solution 15, wherein the event is at least one of the following: all bits of the frequency domain resource allocation field are set to a predefined state; or the UL-SCH indicator is “0”; and / or the CSI request is all zeros(a) or all zeros, wherein the predefined state is an all-zero state or an all-one state.

[0555] 17. The method according to solution 13, wherein the timer is decremented when the wireless device detects the control channel carrying downlink control information (DCI).

[0556] 18. The method according to Solution 13, wherein the wireless device decrements the value of the timer by 1 when at least one of the following conditions is met: after each slot and / or symbol during the active time; after 1 millisecond during the active time; after each slot in the active downlink (DL) bandwidth portion (BWP) of the serving cell where the wireless device monitors the control channel to detect the DCI; after each monitoring opportunity; after each control channel monitoring duration in the search space; after each span; after a subframe; or after each slot where the wireless device decodes the DCI and does not indicate that the control channel has been skipped.

[0557] 19. The method according to solution 4, 7 or 18, wherein the DCI is the DCI format indicating the PDCCH monitoring behavior.

[0558] 20. The method according to solution 4, 7 or 18, wherein the DCI is the DCI format indicating resource information related to data transmission.

[0559] 21. The method according to solution 18, wherein when the timer decrements to 0, the wireless device changes the current monitoring behavior to another monitoring behavior.

[0560] 22. The method according to any one of solutions 11-13, wherein the wireless device monitors a PDCCH according to the indicated PDCCH monitoring behavior after a number of time slots X from the time slot of receiving the DCI indicating PDCCH monitoring behavior, wherein the indicated PDCCH monitoring behavior is different from the current PDCCH monitoring behavior.

[0561] 23. The method according to solution 22, wherein if a BWP handover occurs in the next time slot after receiving a DCI indicating monitoring behavior, the wireless device is in a state equal to the function (X*2). μnew / 2 μold After determining the number of time slots, the PDCCH is monitored according to the indicated monitoring behavior, where: the function (·) represents the rounding up or down of the "·" or retaining the original value; μnew is the parameter set of the active BWP of the scheduled cell after the BWP handover; μold is the parameter set of the current active BWP of the scheduled cell before the BWP handover.

[0562] 24. The method according to any one of solutions 11 or 13, wherein the data transmission scheduled by downlink signaling is downlink data transmission.

[0563] 25. The method according to solution 24, wherein after the downlink data transmission is fully received by the wireless device, the wireless device monitors the PDCCH according to indicated monitoring behavior.

[0564] 26. The method according to any one of solutions 11 or 13, wherein the data transmission scheduled by downlink signaling is uplink data transmission.

[0565] 27. The method according to solution 26, wherein after the uplink data transmission has been fully transmitted by the wireless device, the wireless device monitors the PDCCH according to indicated monitoring behavior.

[0566] 28. The method according to any one of solutions 11-13, wherein if a bandwidth portion (BWP) handover occurs in the next time slot after the monitoring action is triggered, the wireless device monitors the PDCCH according to the triggered monitoring action after the BWP handover is completed.

[0567] 29. The method according to solution 11, 12 or 14, wherein the cyclic redundancy check of the DCI is scrambled by a specific radio network temporary identifier.

[0568] 30. The method according to Solution 12, wherein the DCI field reinterpreted as information indicating PDCCH monitoring behavior includes at least one of the following: bandwidth portion indicator; time domain resource allocation; downlink allocation index; modulation and coding scheme; new data indicator; redundancy version; HARQ process number; TPC command for the scheduled PUSCH; antenna port; or PTRS-DMRS association.

[0569] 31. The method according to Solution 1, wherein the monitoring behavior switching is triggered by at least one event related to the wireless network.

[0570] 32. The method according to solution 31, wherein the event is associated with the power-saving function of the wireless device.

[0571] 33. The method according to solution 31, wherein the event is associated with a timer when DRX is configured.

[0572] 34. The method according to any one of solutions 1-2, wherein the wireless device does not expect to perform a control channel monitoring behavior transition during at least one of the following events: the last time slot and / or symbol of the timer duration of drx-RetransmissionTimerDL; the last time slot and / or symbol of the timer duration of drx-RetransmissionTimerUL; the last time slot and / or symbol of the timer duration of ra-ContentionResolutionTimer; the last time slot and / or symbol of the timer duration of drx-HARQ-RTT-TimerDL; the last time slot and / or symbol of the timer duration of drx-HARQ-RTT-TimerUL.

[0573] 35. The method according to any one of solutions 1-2, wherein the wireless device does not expect to receive multiple downlink control messages (DCIs) indicating control channel monitoring behavior transitions with different information during multiple consecutive time slots.

[0574] 36. The method according to any one of solutions 1-2, wherein if the wireless device is instructed, the wireless device does not perform a control channel monitoring behavior change.

[0575] 37. The method according to any one of solutions 1-2, wherein if the wireless device triggers a control channel monitoring behavior that is the same as the current control channel monitoring behavior, the wireless device does not perform a control channel monitoring behavior transition.

[0576] 38. The method according to any one of solutions 1-2, wherein the wireless device performs a reporting action if the control channel monitoring behavior is indicated by downlink control information (DCI) scheduled together with downlink data.

[0577] 39. The method according to any one of solutions 1-2, wherein the radio device performs a reporting action if the control channel monitoring behavior is indicated by downlink control information (DCI) scheduled together with the secondary cell sleep behavior indication.

[0578] 40. A method for wireless communication (e.g., Figure 4 The method 400 described herein includes sending (410) monitoring behavior of the monitoring control channel from the network device to the wireless device.

[0579] 41. The method according to solution 40, wherein the monitoring behavior is indicated by monitoring configuration information sent by the network device.

[0580] 42. The method according to any one of solutions 40-41, wherein the control channel is a physical downlink control channel (PDCCH), the monitoring behavior is a PDCCH monitoring behavior, and the radio device is a user equipment (UE).

[0581] 43. The method according to any one of solutions 40-42, wherein the PDCCH monitoring behavior represents monitoring the PDCCH according to a search space set pair in a search space set group.

[0582] 44. The method according to solution 43, wherein the PDCCH monitoring behavior is indicated by a downlink control information (DCI) format that indicates information about a set of UEs.

[0583] 45. The method according to solution 43, wherein the PDCCH monitoring behavior is indicated by the downlink control information (DCI) format of the scheduled data transmission.

[0584] 46. ​​The method according to solution 40, wherein the PDCCH monitoring parameters of the plurality of search space sets satisfy at least one of the following conditions: the PDCCH monitoring period Ts is greater than a threshold; the PDCCH monitoring offset Os is greater than a threshold; the duration ks is less than a threshold; the number of monitoring symbols in the time slot is less than a threshold; or the PDCCH monitoring frequency is less than a threshold, wherein the PDCCH monitoring frequency represents the value of ks / Ts.

[0585] 47. The method according to any one of solutions 40-46, wherein the threshold of the PDCCH monitoring parameter of the plurality of search space sets is configured by higher-level parameters.

[0586] 48. The method according to any one of solutions 40-47, wherein the threshold of the PDCCH monitoring parameter is indicated by DCI.

[0587] 49. The method according to any one of solutions 40-41, wherein the monitoring behavior is indicated by downlink signaling, wherein the downlink signaling schedules data transmission.

[0588] 50. The method according to any one of solutions 40-41, wherein the monitoring behavior is indicated by downlink signaling, wherein the downlink signaling does not schedule data transmission.

[0589] 51. The method according to any one of solutions 40-41, wherein the monitoring behavior is triggered by a timer configured by high-level parameters.

[0590] 52. The method according to solution 49, wherein at least one field of the downlink signaling indicates only the monitoring behavior, wherein the bit width of the at least one field is determined by higher-layer parameters.

[0591] 53. According to the method of solution 50, at least one field of the downlink signaling is reused to indicate the monitoring behavior of at least one event.

[0592] 54. The method according to solution 53, wherein the event is at least one of the following: all bits of the frequency domain resource allocation field are set to a predefined state; or the UL-SCH indicator is “0”; and / or the CSI request is all zeros; wherein the predefined state is an all-0 state or an all-1 state.

[0593] 55. The method according to solution 51, wherein the timer is decremented when the wireless device detects the control channel carrying downlink control information (DCI).

[0594] 56. The method according to solution 43 or 46, wherein the DCI is the DCI format indicating the PDCCH monitoring behavior.

[0595] 57. The method according to solution 43 or 46, wherein the DCI is the DCI format indicating resource information related to data transmission.

[0596] 58. The method according to any one of solutions 49-51, wherein the data transmission scheduled by downlink signaling is downlink data transmission.

[0597] 59. The method according to any one of solutions 49-51, wherein the data transmission scheduled by downlink signaling is uplink data transmission.

[0598] 60. The method according to any one of solutions 49-51, wherein if a bandwidth portion (BWP) handover occurs in the next time slot after the monitoring action is triggered, the wireless device monitors the PDCCH according to the triggered monitoring action after the BWP handover is completed.

[0599] 61. The method according to solution 49, 50 or 52, wherein the cyclic redundancy check of the DCI is scrambled by a specific radio network temporary identifier.

[0600] 62. The method according to Solution 50, wherein the DCI field reinterpreted as information indicating PDCCH monitoring behavior includes at least one of the following: bandwidth portion indicator; time domain resource allocation; downlink allocation index; modulation and coding scheme; new data indicator; redundancy version; HARQ process number; TPC command for the scheduled PUSCH; antenna port; or PTRS-DMRS association.

[0601] 63. The method according to solution 40, wherein the monitoring behavior switching is triggered by at least one of the events.

[0602] 64. The method according to solution 63, wherein the event is associated with the power-saving function of the wireless device.

[0603] 65. The method according to solution 63, wherein the event is associated with a timer when DRX is configured.

[0604] In some embodiments, the network device can receive HARQ-ACK information from the wireless device in relation to monitoring behavior indications.

[0605] In some embodiments, the network device may receive UE auxiliary information related to monitoring behavior indications from the wireless device.

[0606] In some embodiments, the network device can receive application latency from the wireless device in relation to monitoring behavioral changes.

[0607] 66. An apparatus for wireless communication, comprising a memory and a processor, wherein the processor reads code from the memory and implements the method described in any one of solutions 1 to 65.

[0608] 67. A computer-readable program storage medium having code stored thereon, said code causing the processor to implement the method described in any one of solutions 1 to 65 when executed by a processor.

[0609] Figure 5This is a block diagram representation of a portion of an apparatus according to some embodiments of the currently disclosed technology. The apparatus 905, such as a base station or wireless device (or UE), may include processor electronics 910 (such as a microprocessor) that implements one or more technologies presented in this document. The apparatus 905 may include transceiver electronics 915 to transmit and / or receive wireless signals via one or more communication interfaces such as antennas(a) 920. The apparatus 905 may include additional communication interfaces for transmitting and receiving data. The apparatus 905 may include one or more memories (not explicitly shown) configured to store information such as data and / or instructions. In some embodiments, processor electronics 910 may include at least a portion of transceiver electronics 915. In some embodiments, the apparatus 905 is used to implement at least some of the disclosed technologies, modules, or functions.

[0610] Some of the embodiments described herein are described in the general context of a method or process that may be implemented in one embodiment by a computer program product comprising computer-executable instructions, such as program code executable by a computer in a networked environment, embodied in a computer-readable medium. The computer-readable medium may include removable and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), optical disc (CD), digital versatile optical disc (DVD), etc. Therefore, the computer-readable medium may include non-transitory storage media. Typically, program modules may include routines, programs, objects, components, data structures, etc., that perform a particular task or implement a particular abstract data type. Computer or processor-executable instructions, associated data structures, and program modules represent examples of program code for performing steps of the methods disclosed herein. A particular sequence of such executable instructions or associated data structures represents examples of corresponding actions for implementing the functionality described in such steps or processes.

[0611] Some of the disclosed embodiments may be implemented as devices or modules using hardware circuitry, software, or a combination thereof. For example, hardware circuitry implementations may include discrete analog and / or digital components, for instance, integrated as part of a printed circuit board. Alternatively or additionally, the disclosed components or modules may be implemented as application-specific integrated circuits (ASICs) and / or field-programmable gate arrays (FPGAs). Some implementations may additionally or alternatively include digital signal processors (DSPs), which are special-purpose microprocessors having an architecture optimized for the operational needs of digital signal processing associated with the functions disclosed herein. Similarly, the various components or sub-components within each module may be implemented in software, hardware, or firmware. Connections between modules and / or between components within modules may be provided using any connection methods and media known in the art, including but not limited to communication via the Internet, wired, or wireless networks using appropriate protocols.

[0612] While this document contains numerous details, these details should not be construed as limiting the scope of the claimed or claimable invention, but rather as descriptions of features specific to particular embodiments. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Furthermore, although the features above may be described as operating in certain combinations and even initially claimed in this way, in some cases one or more features of the claimed combination may be removed from the combination, and the claimed combination may be for sub-combinations or variations thereof. Similarly, although operations are depicted in a specific order in the drawings, this should not be construed as requiring these operations to be performed in the specific order shown or sequentially, or to perform all shown operations to achieve the desired result.

[0613] Only some implementation methods and examples have been described, and other implementation methods, enhancements and variations may be made based on the content described and illustrated in this disclosure.

Claims

1. A method for wireless communication, comprising: receiving, by a wireless device, a downlink control information (DCI) indicating a second monitoring behavior during an application delay after a timer expiry event or an early DCI reception triggering a first monitoring behavior, wherein the first monitoring behavior monitors a physical downlink control channel (PDCCH) according to a search space set group, the search space set group comprising a plurality of search space sets, and wherein the second monitoring behavior monitors the PDCCH according to the search space set group or skips PDCCH monitoring during a PDCCH skipping duration; and monitoring, by the wireless device, the PDCCH using the first monitoring behavior after the application delay of the timer expiry event or the early DCI reception, wherein the wireless device ignores the second monitoring behavior indicated by the DCI.

2. The method of claim 1, wherein the second monitoring behavior comprises at least one of: switching between different search space sets, switching between different search space set groups, or switching between different lists of parameters related to PDCCH monitoring.

3. The method of claim 1, wherein the DCI indicates an index of a search space set sub-group among a plurality of search space set sub-groups in the search space set group.

4. The method of claim 3, wherein the wireless device assumes a smallest index of the search space set sub-group is used to determine a subsequent PDCCH monitoring occasion.

5. The method of claim 1, wherein the DCI indicates at least one of a threshold for a duration Ts, a threshold for a periodicity Ks, a threshold for a PDCCH monitoring offset Os, a threshold for a number of monitoring symbols in a slot Nsymb, or a threshold for a PDCCH monitoring frequency fs, and wherein the second monitoring behavior comprises at least one of: a duration less than the threshold for the duration Ts, a periodicity greater than the threshold for the periodicity Ks, a PDCCH monitoring offset greater than the threshold for the PDCCH monitoring offset Os, a number of monitoring symbols in a slot less than the threshold for the number of monitoring symbols in a slot Nsymb, or a PDCCH monitoring frequency less than the threshold for the PDCCH monitoring frequency fs.

6. The method of claim 1, wherein the timer expiry event is based on a timer configured by a higher layer parameter, and wherein the method further comprises at least one of: resetting the timer after a slot or symbol when the wireless device receives or detects the DCI; and decrementing the timer after each slot in an active DL BWP of a serving cell.

7. The method of claim 1, wherein the first monitoring behavior provides the wireless device with monitoring occasions to monitor a set of PDCCH candidates, wherein the set of PDCCH candidates comprises at least one of: a DCI with CRC scrambled with a C-RNTI, DCI with CRC scrambled with SP-CSI-RNTI, DCI with CRC scrambled with MCS-C-RNTI, or DCI with CRC scrambled with CS-RNTI.

8. A method for wireless communication, comprising: transmitting, by a network device, a downlink control information (DCI) indicating a second monitoring behavior for monitoring a control channel to a wireless device during an application delay after a timer expiration event for triggering a first monitoring behavior at the wireless device or an early DCI indicating the first monitoring behavior, wherein the first monitoring behavior monitors the control channel according to a search space set group, the search space set group comprising a plurality of search space sets, and wherein the second monitoring behavior monitors the control channel according to the search space set group or skips monitoring during a skipping duration; and receiving, by the network device, a report from the wireless device, the report comprising a set of monitoring parameters related to the wireless device monitoring the control channel, the set of monitoring parameters being associated with the first monitoring behavior based on the wireless device ignoring the second monitoring behavior indicated by the DCI.

9. The method of claim 8, wherein the control channel is a physical downlink control channel (PDCCH), the second monitoring behavior is a PDCCH monitoring behavior, and the wireless device is a user equipment (UE).

10. The method of claim 9, wherein the PDCCH monitoring behavior indicates monitoring the PDCCH according to the search space sets in the search space set group.

11. The method of claim 9, wherein the DCI indicating the PDCCH monitoring behavior schedules a data transmission.

12. The method of claim 9, wherein at least one field of the DCI indicates the second monitoring behavior, and wherein a bit width of the at least one field is determined by a higher layer parameter.

13. The method of claim 9, wherein at least one field of the DCI is repurposed to indicate the second monitoring behavior for at least one event.

14. The method of claim 13, wherein the event is at least one of: all bits of a frequency domain resource allocation field are set to a predefined state; and / or all bits of the field, modulation and coding scheme, new data indicator, and redundancy version of transport block 2 are set to a predefined state; or an UL-SCH indicator is “0”; and / or a CSI request is all zeros; wherein the predefined state is an all 0 state or an all 1 state.

15. An apparatus for wireless communication, comprising memory and processor electronics, wherein the processor electronics reads code from the memory and causes the apparatus to: receiving, during an application delay after a timer expiry event for triggering a first monitoring behavior or an early downlink control information, DCI, reception indicating the first monitoring behavior, a DCI indicating a second monitoring behavior, wherein the first monitoring behavior monitors a physical downlink control channel, PDCCH, according to a search space set group comprising a plurality of search space sets, and wherein the second monitoring behavior monitors the PDCCH according to the search space set group or skips PDCCH monitoring during a PDCCH skipping duration; and monitoring, after the application delay of the timer expiry event or the early DCI reception, the PDCCH using the first monitoring behavior based on ignoring the second monitoring behavior indicated by the DCI.

16. An apparatus for wireless communication, comprising memory and processor electronics, wherein the processor electronics reads code from the memory and causes the apparatus to: transmit, to a wireless device, a downlink control information, DCI, indicating a second monitoring behavior for monitoring a control channel during an application delay after a timer expiry event for triggering a first monitoring behavior or an early DCI at the wireless device, wherein the first monitoring behavior monitors the control channel according to a search space set group comprising a plurality of search space sets, and wherein the second monitoring behavior monitors the control channel according to the search space set group or skips monitoring during a skipping duration; and receive a report from the wireless device, the report comprising a set of monitoring parameters related to monitoring the control channel by the wireless device, the set of monitoring parameters being associated with the first monitoring behavior based on the wireless device ignoring the second monitoring behavior indicated by the DCI.

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