Search space set monitoring for physical downlink control channel iterations

Abstract

Methods, systems, and devices for wireless communications are described. In general, physical downlink control channel (PDCCH) candidates in a first and second search space (SS) set may be located in the same slot. When both SS sets have the same period and the same offset, the UE can determine that the SS sets are linked. The UE can expect the same number of monitoring opportunities for each SS set in a slot, and can determine that a monitoring opportunity in a first SS set having a first index value is linked with a monitoring opportunity in a second SS set having the same index value. The UE can determine that a rule is met such that monitoring opportunities for different SS sets having the same period but different offsets are located in different slots, and a first PDCCH repetition is located in an earlier slot than a second PDCCH repetition.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This patent application claims priority to U.S. patent application Ser. No. 17 / 573,234 by KHOSHNEVISAN et al., entitled "SEARCH SPACE SET MONITORING FOR PHYSICAL DOWNLINK CONTROL CHANNEL REPETITION," filed on January 11, 2022, and U.S. provisional patent application Ser. No. 63 / 136,632 by KHOSHNEVISAN et al., entitled "SEARCH SPACE SET MONITORING FOR PHYSICAL DOWNLINK CONTROL CHANNEL REPETITION," filed on January 12, 2021, each of which is assigned to the assignee of the present application.

[0002] The following relates to wireless communications, including search space set monitoring for physical downlink control channel iterations. [Background technology]

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcasts. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth-generation (4G) systems, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), or LTE-A Pro systems, and fifth-generation (5G) systems, sometimes referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, sometimes known as user equipment (UE). In some examples, the UE may support physical downlink control channel (PDCCH) repetition. Summary of the Invention

[0004] The described techniques relate to improved methods, systems, devices, and apparatuses that support search space set monitoring for physical downlink control channel (PDCCH) iterations. Generally, a user equipment (UE) can determine whether a monitoring opportunity for a first SS set is linked to a monitoring opportunity for a second SS set when different SS sets are in the same slot or different slots. For example, the UE can determine that PDCCH candidates in the first and second SS sets are located in the same slot based on a monitoring pattern for the SS sets configured by a base station. When both SS sets have the same periodicity and the same offset, the UE can determine that SS sets located in the same slot are linked. In some examples, the duration of the monitoring pattern may also be the same. In some examples, the UE can expect the same number of monitoring opportunities for each SS set in a slot (e.g., the radio resource control (RRC) parameter monitoringsymbolsWithinSlot may be the same for each SS set). The UE can determine that each SS set has the same number of monitoring opportunities, and that a monitoring opportunity in a first SS set having a first index value is linked with a monitoring opportunity in a second SS set having the same index value.

[0005] In some examples, the UE may determine, based on instructions from the base station, that monitoring opportunities for different SS sets are located in different slots, where both SS sets have the same period but different offsets. The UE may determine that one or more rules are met, such that a first PDCCH repetition in a first SS set is always located in an earlier slot than a second PDCCH repetition in a second SS set.

[0006] A method for wireless communications in a UE is described, which may include receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval, receiving, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition, and monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0007] An apparatus for wireless communications in a UE is described that may include at least one processor and a memory coupled (e.g., operatively, communicatively, functionally, electronically, or electrically) to the at least one processor, wherein the memory stores instructions executable by the at least one processor to cause the apparatus to: receive, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval; receive, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition; and monitor the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0008] Another apparatus for wireless communications in a UE is described, which may include means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval, means for receiving, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition, and means for monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0009] A non-transitory computer-readable medium storing code for wireless communications in a UE is described, wherein the code may include instructions executable by a processor to receive, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval, receive, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition, and monitor the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0010]

[0010] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for verifying that the number of monitoring opportunities of the first monitoring pattern may be the same as the number of monitoring opportunities of the second monitoring pattern, and monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates may be further based on the verification.

[0011]

[0011] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for determining that a first monitoring opportunity of a first SS set may be linked with a second monitoring opportunity of a second SS set based on verifying that the first monitoring pattern and the second monitoring pattern may have the same number of monitoring opportunities.

[0012]

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include operations, features, means, or instructions for determining that monitoring opportunities from each of the first SS and the second SS may be linked based on the temporal ordering of the monitoring opportunities within the first SS and the second SS, respectively, based on verifying that the first monitoring pattern and the second monitoring pattern may have the same number of monitoring opportunities.

[0013]

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include operations, features, means, or instructions for determining that monitoring opportunities from each of the first SS and the second SS may be linked based on the order of index values ​​associated with the monitoring opportunities within the first SS and the second SS, respectively, based on verifying that the first monitoring pattern and the second monitoring pattern may have the same number of monitoring opportunities.

[0014]

[0014] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for determining, based on determining that a first monitoring opportunity can be linked with a second monitoring opportunity, that a first downlink control channel candidate of a first group of downlink control channel candidates located within the first monitoring opportunity can be linked with a second downlink control channel candidate of a second group of downlink control channel candidates located within the second monitoring opportunity.

[0015]

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for receiving, based on the monitoring, a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate, and combining the first iteration of the downlink control message and the second iteration of the downlink control message.

[0016]

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for verifying that the duration of a first SS set within a period of the monitoring pattern may be the same as the duration of a second SS set within a period of the monitoring pattern, and monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates may be further based on the verification.

[0017] A method for wireless communications in a UE is described that may include receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval, receiving, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition, and monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0018] An apparatus for wireless communications in a UE is described that may include at least one processor and a memory coupled (e.g., operatively, communicatively, functionally, electronically, or electrically) to the at least one processor, wherein the memory stores instructions executable by the at least one processor to cause the apparatus to: receive, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval; receive, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition; and monitor the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0019] Another apparatus for wireless communications in a UE is described that may include: means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval; means for receiving, from the base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition; and means for monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0020] A non-transitory computer-readable medium storing code for wireless communications in a UE is described, wherein the code may include instructions executable by a processor to: receive from a base station a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval; receive from the base station an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition; and monitor the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0021]

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for comparing the first monitoring pattern with the second monitoring pattern to determine whether a set of one or more rules may be satisfied, and determining, based on the one or more rules being satisfied, that a first downlink control channel candidate of the first group of downlink control channel candidates may be linked with a second downlink control channel candidate of the second group of downlink control channel candidates.

[0022]

[0022] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining that one or more rules may be satisfied based at least in part on the first slot number of the first transmission time interval, the first frame number associated with the first transmission time interval, the first offset of the first SS set, the second slot number of the second transmission time interval, the second frame number associated with the second transmission time interval, the second offset of the second SS set, or any combination thereof, wherein the second frame number multiplied by the number of slots per frame plus the second slot number of the slot may be greater than the number of slots per frame times the first frame number plus the second slot number, which may be greater than the second frame number multiplied by the number of frames per slot plus the second slot number minus the period of the same period of the first SS set and the second SS set.

[0023]

[0023] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include operations, features, means, or instructions for ordering the first SS set and the second SS set, and determining that one or more rules may be satisfied may be based on ordering the first SS set and the second SS set.

[0024]

[0024] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for receiving an indication from a base station that a first SS set may be ordered before a second SS set.

[0025]

[0025] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include operations, features, means, or instructions for identifying a first index for the first SS set and a second index for the second SS set, and comparing the first monitoring pattern with the second monitoring pattern includes comparing the first index with the second index.

[0026]

[0026] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate, and combining the first iteration of the downlink control message and the second iteration of the downlink control message based on one or more rules being satisfied.

[0027]

[0027] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for determining that a first transmission time interval may precede a second transmission time interval based on determining whether one or more rules may be satisfied.

[0028]

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the duration of a first SS set within a period of a monitoring pattern may be the same as the duration of a second SS set within a period of the monitoring pattern.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the duration comprises a transmission time interval.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the duration comprises a set of consecutive transmission time intervals.

[0031]

[0031] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for verifying that the number of monitoring opportunities of the first monitoring pattern may be the same as the number of monitoring opportunities of the second monitoring pattern, determining that a first monitoring opportunity of a first SS set may be linked with a second monitoring opportunity of a second SS set based on verifying that the first monitoring pattern and the second monitoring pattern may have the same number of monitoring opportunities, and determining that a first downlink control channel candidate of a first group of downlink control channel candidates may be linked with a second downlink control channel candidate of a second group of downlink control channel candidates based on determining that the first monitoring opportunity may be linked with the second monitoring opportunity.

[0032]

[0032] Some examples of the methods, apparatus, and non-transitory computer-readable media described in this specification may further include an operation, feature, means, or instruction for receiving, based on the monitoring, a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate, and combining the first iteration of the downlink control message and the second iteration of the downlink control message. [Brief explanation of the drawings]

[0033] [Figure 1] FIG. 1 illustrates an example of a wireless communication system that supports search space (SS) set monitoring for physical downlink control channel (PDCCH) repetitions, according to an aspect of the present disclosure. [Figure 2]

[0034] FIG. 1 illustrates an example of a wireless communication system that supports SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 3]

[0035] FIG. 1 illustrates an example of a timeline supporting SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 4]

[0036] FIG. 1 illustrates an example of a timeline supporting SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 5]

[0037] FIG. 1 illustrates an example of a timeline supporting SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 6]

[0038] FIG. 1 illustrates an example of a timeline supporting SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 7]

[0039] 1 is a block diagram of a device that supports SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 8] 1 is a block diagram of a device that supports SS set monitoring for PDCCH repetitions, according to an aspect of the present disclosure. [Figure 9]

[0040] 1 is a block diagram of a communications manager supporting SS set monitoring for PDCCH repetitions, according to an aspect of the disclosure. [Figure 10]

[0041] 1 is a diagram of a system including a device that supports SS set monitoring for PDCCH repetitions, according to an aspect of the disclosure. [Figure 11]

[0042] 10 is a flowchart illustrating a method for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. [Figure 12] 10 is a flowchart illustrating a method for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. [Figure 13]10 is a flowchart illustrating a method for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. [Figure 14] 10 is a flowchart illustrating a method for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0034]

[0043] Some wireless communication systems may support physical downlink control channel (PDCCH) monitoring and PDCCH repetitions across different search space (SS) sets. A user equipment (UE) may be configured with PDCCH repetitions. In such an example, a base station may transmit control information multiple times across multiple repetitions. PDCCH candidates in a first SS set may be linked with PDCCH candidates in a second SS set. The UE may perform a soft combining procedure by combining control signaling received within a first PDCCH candidate in the first SS set with control signaling received within the second SS set. Thus, the UE may monitor a first set of PDCCH candidates (e.g., in the first SS set), a second set of PDCCH candidates (e.g., in the second SS set), and a third set of PDCCH candidates (e.g., by combining the first set of PDCCH candidates with the second set of PDCCH candidates). Each SS set may be defined in terms of the periodicity and offset of the monitoring slots, among other parameters (e.g., duration, number of monitoring opportunities, etc.). Thus, the monitoring opportunities of an SS set may be spread across slots in an inter-slot PDCCH repetition scenario, across different symbols of a slot in an intra-slot PDCCH repetition scenario, or both. A UE can benefit from knowing how to determine which monitoring opportunities of a first SS set are linked with which monitoring opportunities of a second SS set in order to successfully monitor linked PDCCH candidates and combine repetitions of control signals.

[0035]

[0044] A technique for determining whether monitoring opportunities of a first SS set are linked to monitoring opportunities of a second SS set when different SS sets are in the same slot or different slots. For example, a UE may determine that PDCCH candidates in a first and second SS set are located in the same slot based on monitoring patterns for the SS sets configured by RRC parameters (e.g., the monitoringSlotPeriodicityAndOffset parameter). When both SS sets have the same periodicity and the same offset, the UE may determine that SS sets located in the same slot are linked. In some examples, the duration of the monitoring patterns may also be the same. In such examples, the UE may expect the same number of monitoring opportunities for each SS set in a slot (e.g., the RRC parameter monitoringSymbolsWithinSlot may be the same for each SS set). The UE may determine that each SS set has the same number of monitoring opportunities, and that monitoring opportunities in a first SS set having a first index value are linked to monitoring opportunities in a second SS set having the same index value.

[0036]

[0045] In some examples, the UE may determine, based on a monitoring pattern (e.g., configured by an RRC parameter such as monitoringSlotPeriodicityAndOffset for each SS set), that monitoring opportunities for different SS sets are located in different slots, with both SS sets having the same periodicity but different offsets. The UE may determine that one or more rules are met such that a first PDCCH repetition in a first SS set is always located in an earlier slot than a second PDCCH repetition in a second SS set. In such examples, the UE may determine that a monitoring opportunity in a first SS set having a first index value is linked with a monitoring opportunity in a second SS set having the same index value.

[0037]

[0046] Aspects of the present disclosure are first described in the context of a wireless communication system and timelines. Aspects of the present disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts relating to SS set monitoring for PDCCH repetitions.

[0038]

[0047] 1 illustrates an example of a wireless communication system 100 that supports SS set monitoring for PDCCH repetitions in accordance with an aspect of the present disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0039]

[0048] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may be devices of different forms or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 can establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 can support communication of signals according to one or more radio access technologies.

[0040]

[0049] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be fixed, mobile, or both at different times. The UEs 115 may be devices of different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), as shown in FIG. 1.

[0041]

[0050] The base stations 105 may communicate with the core network 130, with each other, or both. For example, the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface). The base stations 105 may communicate with each other over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130), or both. In some examples, the backhaul links 120 may be or include one or more wireless links.

[0042]

[0051] One or more of the base stations 105 described herein may include or be referred to as a base transceiver station, radio base station, access point, radio transceiver, Node B, eNode B (eNB), Next Generation Node B or Giga Node B (any of which may be referred to as gNB), Home Node B, Home eNode B, or other suitable terminology by those skilled in the art.

[0043]

[0052] The UE 115 may include or be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, among other examples. The UE 115 may also include a mobile phone, a personal digital assistant (PDA), a multimedia / entertainment device (e.g., a radio, an MP3 player, or a video device), a camera, a game console, a navigation / positioning device (e.g., a GNSS (Global Navigation Satellite System) device based on GPS (Global Positioning System), Beidou, GLONASS, or Galileo, or a ground-based device), a tablet computer, a laptop computer, a personal computer, a netbook, a smartbook, a personal computer, a smart device, a wearable device (e.g., a smart watch, smart clothing, smart The UE 115 may include or be referred to as a personal electronic device such as glasses, virtual reality goggles, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets), drones, robots / robotic devices, vehicles, vehicular devices, meters (e.g., parking meters, electric meters, gas meters, water meters), monitors, gas pumps, appliances (e.g., kitchen appliances, washing machines, dryers), location tags, medical / healthcare devices, implants, sensors / actuators, displays, or any other suitable device configured to communicate via a wireless or wired medium. In some examples, the UE 115 may include or be referred to as a Wireless Local Loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or Machine Type Communication (MTC) device, among other examples, which may be implemented within various objects such as appliances, vehicles, meters, among other examples.

[0044]

[0053] The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may at times act as relays, as well as base stations 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1 .

[0045]

[0054] The UE 115 and the base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier used for the communication link 125 may include a portion (e.g., a bandwidth portion (BWP)) of a radio frequency spectrum band operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating operation for the carrier, user data, or other signaling. The wireless communication system 100 can support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0046]

[0055] In some examples (e.g., in a carrier aggregation configuration), a carrier may have acquisition or control signaling that coordinates the operation of other carriers. Carriers may be associated with frequency channels (e.g., Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Numbers (EARFCNs)) and may be arranged according to a channel raster for discovery by UE 115. A carrier may operate in a standalone mode, where initial acquisition and connection may be made by UE 115 via the carrier, or the carrier may operate in a non-standalone mode, where a connection is established using a different carrier (e.g., of the same or different radio access technology).

[0047]

[0056] The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the base station 105 or downlink transmissions from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0048]

[0057] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) for a carrier of a particular radio access technology. The devices of the wireless communication system 100 (e.g., the base station 105, the UE 115, or both) may have a hardware configuration that supports communication over a particular carrier bandwidth or may be configurable to support communication over one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate over a portion (e.g., a sub-band, BWP) or all of the carrier bandwidth.

[0049]

[0058] A signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing an MCM technique, a resource element may be composed of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements and the higher the order of the modulation scheme received by the UE 115, the higher the data rate for the UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further increase the data rate or data integrity for communications with the UE 115.

[0050]

[0059] One or more numerologies for a carrier may be supported, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs with the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for the UE 115 may be limited to one or more active BWPs.

[0051]

[0060] The time interval for the base station 105 or the UE 115 may be, for example, T s =1 / (Δf max N f ) seconds, where Δf max can represent the maximum supported subcarrier spacing, and N fmay represent the maximum supported discrete Fourier transform (DFT) size. The communication resource time intervals may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., in the range of 0 to 1023).

[0052]

[0061] Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into several slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on the subcarrier spacing. Each slot may include several symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). In some wireless communication systems 100, a slot may be further divided into multiple minislots, each containing one or more symbols. Excluding the cyclic prefix, each symbol period may include one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the frequency operating band.

[0053]

[0062] A subframe, slot, minislot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods within a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., within a burst of shortened TTIs (sTTIs)).

[0054]

[0063] Physical channels may be multiplexed on carriers according to various techniques. Physical control channels and physical data channels may be multiplexed on downlink carriers using, for example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by several symbol periods and may extend across the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESET) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search the control region for control information according to one or more SS sets, and each SS set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level for the control channel candidates may refer to several control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The SS sets may include a common SS set configured to send control information to multiple UEs 115 and a UE-specific SS set for sending control information to a particular UE 115 .

[0055]

[0064] Each base station 105 can provide communication coverage via one or more cells, e.g., macrocells, small cells, hotspots, or other types of cells, or any combination thereof. The term “cell” can refer to a logical communication entity used to communicate with the base station 105 (e.g., on a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), etc.) to distinguish neighboring cells. In some examples, a cell can also refer to a geographic coverage area 110 or a portion (e.g., a sector) of the geographic coverage area 110 in which the logical communication entity operates. Such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area, depending on various factors such as the capabilities of the base station 105. For example, a cell may be or include a building, a subset of a building, or an outside space between or overlapping with the geographic coverage area 110, among other examples.

[0056]

[0065] A macro cell generally covers a relatively large geographic area (e.g., a few kilometers in radius) and may allow unrestricted access by UEs 115 that subscribe to service with the network provider that supports the macro cell. Small cells may be associated with lower-power base stations 105 compared to macro cells, and the small cells may operate within the same or different (e.g., licensed, unlicensed) frequency bands as the macro cell. A small cell may provide unrestricted access to UEs 115 that subscribe to service with the network provider, or may provide restricted access to UEs 115 that have an association with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users at home or in the office). A base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0057]

[0066] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, Narrowband IoT (NB-IoT), enhanced Mobile Broadband (eMBB)) that can provide access to different types of devices.

[0058]

[0067] In some examples, the base stations 105 are mobile and thus may provide communication coverage to moving geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include a heterogeneous network in which different types of base stations 105 provide coverage to various geographic coverage areas 110, for example, using the same or different radio access technologies.

[0059]

[0068] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may, in some examples, not be aligned in time. The techniques described herein may be used for either synchronous or asynchronous operation.

[0060]

[0069] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated machine-to-machine communication (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to a data communication technology that enables devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or capture information, relay such information to a central server or application program that utilizes the information, or present the information to a human who interacts with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Example applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security detection, physical access control, and transaction-based business billing. In an aspect, the techniques disclosed herein may be applicable to MTC or IoT UEs. MTC or IoT UE may include MTC / enhanced MTC (eMTC, also known as CAT-M, Cat M1) UE, NB-IoT UE (also known as CAT NB1), as well as other types of UE. eMTC and NB-IoT can refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (further extended eMTC), and mMTC (Massive MTC), and NB-IoT may include eNB-IoT (enhanced NB-IoT) and FeNB-IoT (further extended NB-IoT).

[0061]

[0070] Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception rather than simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power-saving techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communication, operating on a limited bandwidth (e.g., pursuant to narrowband communication), or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of the carrier, or outside of the carrier.

[0062]

[0071] The wireless communication system 100 may be configured to support ultra-reliable or low-latency communications, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission-critical communications. The UE 115 may be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission-critical functions). Ultra-reliable communications may include private or group communications and may be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service prioritization, and the mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0063]

[0072] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without the involvement of the base station 105.

[0064]

[0073] In some systems, the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel between vehicles (e.g., UE 115). In some examples, the vehicles may communicate using vehicle-to-anything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. The vehicles may signal information regarding traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information relevant to the V2X system. In some examples, the vehicles in the V2X system may communicate with a roadside infrastructure, such as a roadside unit, or a network via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both.

[0065]

[0074] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC) that may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) that routes packets or interconnections to external networks. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management, for the UEs 115 served by the base stations 105 associated with the core network 130. User IP packets may be forwarded through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entities may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0066]

[0075] Some of the network devices, such as the base station 105, may include subcomponents, such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transmitting entities 145, which may be referred to as a radio head, a smart radio head, or a transmit / receive point (TRP). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated into a single network device (e.g., the base station 105).

[0067]

[0076] The wireless communication system 100 may operate using one or more frequency bands typically ranging from 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region is generally known as the ultra-high frequency (UHF) region or decimeter band because wavelengths range from approximately 1 decimeter to 1 meter in length. Although UHF waves may be blocked or redirected by buildings and environmental features, the waves can penetrate structures sufficiently for a macrocell to provide service to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0068]

[0077] The wireless communication system 100 may also operate in the very high frequency (SHF) region, using the frequency band from 3 GHz to 30 GHz, also known as the centimeter band, or the extremely high frequency (EHF) region of the spectrum, also known as the millimeter band (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas on each device may be smaller and more closely spaced than the UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, propagation of EHF transmissions may experience greater atmospheric attenuation and result in shorter ranges than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of bands across these frequency regions may vary by country or regulatory body.

[0069]

[0078] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ license-assisted access (LAA), LTE-unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, devices such as the base station 105 and the UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation in an unlicensed band may be based on a carrier aggregation configuration with component carriers operating in a licensed band (e.g., LAA). Operation in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0070]

[0079] The base station 105 or the UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or the UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located in an antenna assembly such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located in various geographic locations. The base station 105 may have an antenna array with several rows and columns of antenna ports that the base station 105 can use to support beamforming of communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted through the antenna ports.

[0071]

[0080] The base station 105 or UE 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. Multiple signals may be transmitted by a transmitting device via different antennas or different combinations of antennas, for example. Similarly, multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurements and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0072]

[0081] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated through antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array encounter constructive interference and other signals encounter destructive interference. Adjusting the signals communicated through the antenna elements may include the transmitting or receiving device applying an amplitude offset, a phase offset, or both to signals carried through the antenna elements associated with the device. The adjustment associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device or to some other orientation).

[0073]

[0082] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform a beamforming operation for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different beamforming weight sets associated with different transmission directions. The transmission of different beam directions may be used (e.g., by a transmitting device such as the base station 105 or by a receiving device such as the UE 115) to identify beam directions for subsequent transmission or reception by the base station 105.

[0074]

[0083] Some signals, such as data signals associated with a particular receiving device, may be transmitted by the base station 105 in a single beam direction (e.g., a direction associated with a receiving device, such as the UE 115). In some examples, the beam direction associated with a transmission along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, the UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal received by the UE 115 with the highest signal quality or an otherwise acceptable signal quality.

[0075]

[0084] In some examples, transmission by a device (e.g., by the base station 105 or the UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a composite beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, where the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)) that may be precoded or ampliconed. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques have been described with respect to signals transmitted by the base station 105 in one or more directions, the UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by the UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0076]

[0085] A receiving device (e.g., UE 115) can attempt multiple receive configurations (e.g., directional listening) when receiving various signals, such as synchronization signals, reference signals, beam selection signals, or other control signals, from the base station 105. For example, the receiving device can attempt multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of the antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, the receiving device can use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned to a beam direction determined based on listening along different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening along multiple beam directions).

[0077]

[0086] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly for communications on logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels onto transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer and improve link efficiency. In the control plane, the RRC protocol layer may provide establishment, configuration, and maintenance of an RRC connection between the UE 115 and the base station 105 or core network 130, which supports radio bearers for user plane data. In the physical layer, transport channels may be mapped to physical channels.

[0078]

[0087] The UE 115 and the base station 105 can support retransmission of data to increase the likelihood that the data is successfully received. Hybrid Automatic Repeat Request (HARQ) feedback is one technique for increasing the likelihood that data is accurately received over the communication link 125. HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device can support in-slot HARQ feedback, where the device can provide HARQ feedback within a particular slot for data received in a previous symbol within that slot. In other cases, the device can provide HARQ feedback in a subsequent slot or according to some other time interval.

[0079]

[0088] A technique for determining whether a monitoring opportunity of a first SS set is linked to a monitoring opportunity of a second SS set when different SS sets are in the same slot or different slots. For example, the UE 115 may determine that PDCCH candidates in the first and second SS sets are located in the same slot based on monitoring patterns for the SS sets configured by RRC parameters (e.g., the monitoringSlotPeriodicityAndOffset parameter). When both SS sets have the same periodicity and the same offset, the UE 115 may determine that the SS sets located in the same slot are linked. In some examples, the duration of the monitoring patterns may also be the same. In such examples, the UE 115 may expect the same number of monitoring opportunities for each SS set in the slot (e.g., the RRC parameter monitoringsymbolsWithinSlot may be the same for each SS set). The UE 115 may determine that each SS set has the same number of monitoring opportunities, and that monitoring opportunities in a first SS set having a first index value are linked to monitoring opportunities in a second SS set having the same index value.

[0080]

[0089] In some aspects, a UE 115 of the wireless communication system 100 may be configured with up to three CORESETs within a given BWP. A CORESET may include one or more transmission configuration indicator (TCI) states for a PDCCH repetition and may be associated with a number of resource blocks (RBs) in the frequency domain and a number of symbols or other TTIs (e.g., a number of OFDM symbols) in the time domain. In some aspects, a CORESET configured in a UE 115 may be associated with a CCE resource element group (CCE-REG) mapping type (e.g., CCE-REG bundle mapping type), a precoding granularity, an identifier (e.g., a scrambling identifier) ​​associated with scrambling for a PDCCH demodulation reference signal (DMRS), coded bits of downlink control information (DCI) content, or any combination thereof.

[0081]

[0090] In some aspects, the UE 115 may be configured with up to 10 SS sets within a given BWP. In some aspects, each SS set may be associated with a given CORESET and may include a set of monitoring opportunities. In some aspects, an SS set may include a set of control channel monitoring opportunities (e.g., PDCCH monitoring opportunities). Moreover, the UE 115 may be configured to determine the control channel monitoring opportunities associated with a given SS set based on one or more characteristics of the SS set, which may be configured (e.g., pre-configured) in the UE 115, indicated to the UE 115 via the base station 105, or both. The UE 115 may be configured with one or more different types of SS sets (e.g., searchSpaceType), including a UE-specific SS set, a common SS set, or both. Furthermore, each SS set may be associated with one or more DCI formats to be monitored.

[0082]

[0091] The parameters of the SS set are the period of the monitoring opportunity (k s ) (e.g., k sslot), the offset for the monitoring opportunity in slots (o s ) (for example, o s slot) (e.g., monitoringSlotPeriodicityAndOffset), a duration (T s ) (where T s <k s , or any combination thereof.

[0083]

number

[0084] and frame η f The number of PDCCH monitoring opportunities in

[0085]

number

[0086] It can be determined if In some aspects, when monitoring the control channel, the UE 115 may

[0087]

number

[0088] Starting with T s The control channel candidate set may be configured to monitor control channel candidates (e.g., PDCCH candidates) for the SS set for the next k consecutive slots. s -T s The UE 115 may refrain from monitoring control channel candidates for the SS set for consecutive slots. The number of control channel candidates (e.g., PDCCH candidates) may be based on the aggregation level of wireless communications at the UE 115 (e.g., the number of CCEs).

[0089]

[0092] In some aspects, the UE 115 may be configured to monitor the control channel according to a control channel monitoring pattern (e.g., a PDCCH monitoring pattern) within a slot (e.g., monitoringSymbolsWithinSlot). For example, the PDCCH monitoring pattern within a slot may indicate the first symbol of CORESET within the slot for PDCCH monitoring. For example, in the context of a slot including 14 symbols, the CORESET configured at the UE 115 may be associated with an SS set including three symbols, and the control channel monitoring pattern (e.g., monitoringSymbolsWithinSlot) associated with the SS set may be configured as "01000010001000." In this example, the UE 115 may be configured to determine that three monitoring opportunities exist within each slot in which the SS set resides. Moreover, the UE 115 may be configured to determine that the three monitoring opportunities begin at the second, seventh, and eleventh symbols of each respective slot in which the SS resides.

[0090]

[0093] In the context of an SFN, a PDCCH transmission (e.g., a PDCCH DMRS) of the SFN may be associated with two TCI states. In particular, for a PDCCH transmission of an SFN, one CORESET may be activated in the UE 115 with two active TCI states. In such a case, each control channel candidate (e.g., a PDCCH candidate) of the SS set associated with the CORESET may be associated with two active TCI states of the CORESET.

[0091]

[0094] Similarly, for PDCCH repetitions where each PDCCH repetition includes a PDCCH candidate, two PDCCH candidates (e.g., two PDCCH repetitions) may be linked (e.g., associated) together for possible repetitions of the same control channel transmission (e.g., repetitions of DCI). In the context of PDCCH repetitions, the payloads (e.g., DCI payloads) of the two PDCCH candidates (e.g., two PDCCH repetitions) may be the same. For example, a first PDCCH candidate may be associated or linked to a second PDCCH candidate. In this example, the first repetition of the DCI may be transmitted within the first PDCCH candidate, and the second repetition of the DCI may be transmitted within the second PDCCH candidate, where the first and second repetitions of the DCI are the same. In this example, the UE 115 may receive and / or decode only the first repetition of the DCI or only the second repetition of the DCI. Additionally or alternatively, the UE 115 may receive and / or decode both the first and second repetitions of the DCI by performing soft combining of the first and second repetitions of the DCI. In some aspects, the associated / linked PDCCH candidates may have the same aggregation level (e.g., the same number of CCEs).

[0092]

[0095] In some aspects, related PDCCH candidates in different SS sets associated with a corresponding CORESET may be linked (e.g., associated) together for PDCCH repetition. In some cases, two PDCCH candidates with the same candidate index across two associated SS sets may be linked or associated. In other cases, PDCCH candidates with the same starting CCE index may be linked. In some aspects, the sets of associated / linked PDCCH candidates may be configured via control signaling (e.g., RRC signaling). For example, the UE 115 may receive an RRC message indicating that a first PDCCH candidate in a first SS set is linked (e.g., associated) with a second PDCCH candidate in a second SS set. Moreover, the UE 115 may be configured with sets of linked / associated PDCCH candidates that are within the same slot or TTI (e.g., intra-slot PDCCH repetition), sets of linked / associated PDCCH candidates that are within different slots (e.g., inter-slot PDCCH repetition), or both.

[0093]

[0096] In some examples, the UE 115 may determine, based on a monitoring pattern (e.g., configured by an RRC parameter such as monitoringSlotPeriodicityAndOffset for each SS set), that monitoring opportunities for different SS sets are located in different slots, with both SS sets having the same periodicity but different offsets. The UE 115 may determine that one or more rules are met such that a first PDCCH repetition in a first SS set is always located in an earlier slot than a second PDCCH repetition in a second SS set. In such examples, the UE 115 may determine that a monitoring opportunity in a first SS set having a first index value is linked with a monitoring opportunity in a second SS set having the same index value.

[0094]

[0097] 2 illustrates an example of a wireless communication system 200 that supports SS set monitoring for PDCCH repetitions in accordance with aspects of the present disclosure. The wireless communication system may implement aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 205 and a UE 215, which may be examples of the corresponding devices described with reference to FIG. 1. The base station 205 may serve one or more UEs 215 located within its coverage area 110-a.

[0095]

[0098] In some aspects, the UE 215 may be configured with one or more CORESETs within the BWP of the serving cell. For example, the UE 215 may be configured with three, five, or some other number of CORESETs within the BWP configured by the base station 205. In general, each CORESET may be associated with one active transmission configuration indicator (TCI) state. For example, as part of the configuration of a CORESET for the UE 215 by the base station 205, the number of resource blocks (RBs) of the CORESET in the frequency domain and the number of symbols of the CORESET in the time domain (e.g., one, two, or three OFDM symbols) may be RRC configured for the UE 215.

[0096]

[0099] In some examples, the wireless communication system 200 may support PDCCH monitoring in one or more SS sets. In some aspects, each SS set may be associated with one CORESET. For example, there may be up to 10 SS sets within a BWP of a component carrier (CC). As part of the SS set configuration, RRC signaling may be used to configure the associated CORESET, the monitored slots and symbol period and offset to be monitored within the slot in the time domain, the DCI format to be monitored, or the number of PDCCH candidates for a given aggregation level (AL). PDCCH candidates may be defined as part of the SS set configuration. For example, PDCCH candidates with a given AL within a given PDCCH candidate index may be defined within a given SS set. DCI may be conveyed within one PDCCH candidate. For example, base station 205 may configure a first SS set that includes multiple PDCCH monitoring opportunities 210 (e.g., monitoring opportunity 210-a, monitoring opportunity 210-b, and monitoring opportunity 210-c) and a second SS set that includes multiple PDCCH monitoring opportunities 220 (e.g., monitoring opportunity 220-a, monitoring opportunity 220-b, and monitoring opportunity 220-c). Each monitoring opportunity may consist of one or more PDCCH candidates (e.g., the PDCCH candidate included in monitoring opportunity 210, the PDCCH candidate included in monitoring opportunity 220, etc.).

[0097]

[0100] In some examples, each SS set (e.g., a first SS set including monitoring opportunities 210) may be defined by one or more parameters. For example, the first SS set may correspond to a CORESET and one or more PDCCH monitoring opportunities 210. The parameters of the SS set may include the period of the monitoring opportunities (k s ) (e.g., k s slot), the offset for the monitoring opportunity in slots (o s ) (for example, o sFor example, a first SS set s=1 may have a period (k1) 225 of five slots 230 and an offset (o1) of zero slots 230. The base station 205 can configure the period and offset of an SS set via an RRC message (e.g., monitoringSlotPeriodicityAndOffset). An SS set may have a duration (T) that indicates the number of slots in which the SS set exists. s ) where T s <k s For example, the first SS set s=1 may have a duration (T1) 235 of two slots 230. In some examples, the base station 205 may configure the UE 215 to monitor control signaling in the SS set by indicating a PDCCH monitoring pattern having a TTI (e.g., slot 230). For example, the RRC parameter (e.g., monitoringSymbolsWithinSlot) may indicate the first symbol of CORESET within slot 230 for monitoring. For example, for a CORESET having three symbols 240, the RRC parameter may indicate the first symbol (e.g., symbol 2 of slot 230), the second symbol (e.g., the seventh symbol of slot 230), and the third symbol (e.g., the eleventh symbol of slot 230). The first shown symbol may be the first symbol of the first monitoring opportunity 210-d in the slot 230, the second symbol may be the first symbol of the second monitoring opportunity 210-e in the slot 230, and the third symbol may be the first symbol of the third monitoring opportunity 210-f. A bitmap indicating such a configuration of slots 230 may be configured as "01000010001000."

[0098]

[0101] The UE 215 may monitor PDCCH candidates in various SS sets to receive one or more DCI messages. The UE 215 may determine that the PDCCH candidates pass a cyclic redundancy check (CRC) check (e.g., the UE 215 may attempt to blindly decode each PDCCH candidate in a blind decoding attempt where the PDCCH candidate passes a CRC check corresponding to the successfully decoded DCI). In some wireless communication systems, there may be a limit (e.g., a maximum number) of monitored PDCCH candidates that the UE 215 can attempt to blindly decode (e.g., a blind decoding limit, which may also be referred to as a maximum blind decode count, a BD limit, a monitored PDCCH candidate limit, etc.). The blind decoding limit (BD limit) may be based on a given transmission time interval (e.g., a slot, a span, or other duration in the time domain). Thus, within any given TTI, the UE may be configured with one or more PDCCH candidates. The PDCCH candidates may correspond to different SS sets. The UE may count some or all of the PDCCH candidates toward the BD limit.

[0099]

[0102] Some wireless communication systems may allow PDCCH transmissions with two active TCI states. Variations on this approach may include one CORESET with two active TCI states, one SS set associated with two different CORESETs, or two SS sets associated with corresponding CORESETs. In a situation where one CORESET is associated with two active TCI states, base station 205 may configure one PDCCH candidate (within a given SS set) to be associated with both TCI states of the CORESET. In another approach where one CORESET may be associated with two active TCI states, base station 205 may configure two sets of PDCCH candidates (within a given SS set) to be associated with the two active TCI states of the CORESET, respectively. In yet another approach where one CORESET may be associated with two active TCI states, base station 205 may configure two sets of PDCCH candidates to be associated with two corresponding SS sets, where both SS sets are associated with the CORESET and each SS set is associated with only one TCI state of the CORESET. In general, the set of PDCCH candidates may include a single or multiple PDCCH candidates, where the PDCCH candidates in the set correspond to recurrences or occasions at which DCI may be indicated to the UE 215.

[0100]

[0103] Sets of PDCCH candidates in various SS sets may provide repetition-based PDCCH candidates, with each PDCCH candidate linked to other PDCCH candidates. For example, a PDCCH candidate in a first SS set may be located within a monitoring opportunity 210-a and may be linked to a PDCCH candidate located within a monitoring opportunity 220-a of a second SS set. The PDCCH candidate in the first SS set and the PDCCH candidate in the second SS set may be located within the same slot or within different slots. In some examples, the base station 205 may transmit a DCI message using PDCCH repetition on two linked PDCCH candidates. For example, the base station 205 may transmit a first repetition of a DCI message on a PDCCH candidate in the first SS set and a second repetition of a DCI message on a PDCCH candidate in the second SS set. In some examples, the UE 215 may perform a soft-combining procedure on the PDCCH candidates received in the first and second SS sets, resulting in a soft-combined PDCCH candidate. The UE may also consider the soft-combined PDCCH candidates as PDCCH candidates to be monitored.

[0101]

[0104] In some examples, two or more PDCCH candidates may be explicitly linked together (e.g., the base station 205 may configure a link to the UE 215 before the UE 215 attempts to perform blind decoding of the PDCCH candidates). In some examples, two or more PDCCH candidates may not be explicitly linked together, and the UE 215 may identify or otherwise determine the link before or after decoding. However, some wireless communications systems do not provide a mechanism or other indication of how one or more PDCCH candidates are counted when monitoring is applied to the blind decoding limit configured for the UE 215.

[0102]

[0105] Thus, as described herein, monitoring opportunities for different SS sets may depend on the SS set configuration, including the period, offset, duration, and monitoring opportunity within a slot (e.g., as indicated in various RRC parameters such as monitoringSlotPeriodicityAndOffset, Duration, and monitoringSmbolsWithinSlot for each SS set). Due to PDCCH repetition, when two linked PDCCH candidates are in different SS sets, the monitoring opportunities of the two SS sets may also be linked because the linked PDCCH candidates are defined within a given monitoring opportunity of a given SS set. Thus, the UE 215 may need to determine which monitoring opportunity of a first SS set is linked to which monitoring opportunity of a second SS set. In some examples, the UE 215 can identify whether monitoring opportunities in different SS sets within the same TTI (e.g., slot) are linked, as described in more detail with reference to FIG. 3. In some examples, the UE 215 can identify whether monitoring opportunities in different SS sets in different TTIs (e.g., slots) are linked, as described in more detail with reference to Figures 4-6.

[0103]

[0106] 3 illustrates an example timeline 300 supporting SS set monitoring for PDCCH repetitions in accordance with an aspect of the present disclosure. Timeline 300 may implement aspects of wireless communication system 100 and wireless communication system 200. For example, a base station and a UE may communicate according to timeline 300, which may be examples of the corresponding devices described with reference to FIGS. 1 and 2.

[0104]

[0107] In some examples, a base station can configure a UE with multiple SS sets (e.g., two SS set index indications for a first SS set and a second SS set) within the same TTI (e.g., slot 305). The base station can configure a first monitoring opportunity 315-a and a second monitoring opportunity 315-b for the first SS set and can also configure a first monitoring opportunity 320-a and a second monitoring opportunity 320-b for the second SS set. The UE can expect both SS sets to be configured with the same periodicity and offset (e.g., the same value for monitoringSlotPeriodicityAndOffset). The first SS set and the second SS set can also have the same duration. Having the same periodicity, offset, duration, or any combination thereof can result in intra-slot PDCCH repetition.

[0105]

[0108] In some examples, the UE may expect the same number of monitoring opportunities in slot 305-a for both SS sets. For example, the UE may verify that the same number of 1's are present in the RRC indication (e.g., monitoringSymbolsWithinSlot) for the first SS set as are present in the RRC indication (e.g., monitoringSymbolsWithinSlot) for the second SS set. In such an example, the UE may determine that monitoring opportunities with the same index value (j) in the two SS sets are linked. For example, the first SS set may be configured with the RRC parameter monitoringSymbolsWithinSlot (e.g., bitmap 00100001000000) containing two 1's, which may indicate that monitoring opportunity 315-a (e.g., associated with CORESET having two symbols) begins during the third symbol 310 of slot 305-a and that monitoring opportunity 315-b begins during the eighth symbol 310 of slot 305-a. The second SS set may be configured with the RRC parameter monitoringSymbolsWithinSlot (bitmap 00100001000000) containing two ones, which may indicate that monitoring opportunity 320-a (e.g., associated with a CORESET having two symbols) begins during the third symbol 310 of slot 305-a and that monitoring opportunity 320-b begins during the eighth symbol 310 of slot 305-a. Because both bitmaps contain the same number of ones indicating the same number of monitoring opportunities, the UE may verify that the same number of monitoring opportunities exist in slot 305-a. Thus, the UE can determine that the monitoring opportunity 315-a of the first SS set is linked to the monitoring opportunity 320-a of the second SS set (e.g., the first monitoring opportunity of each SS set has the same index value), and can determine that the monitoring opportunity 315-b of the first SS set is linked to the monitoring opportunity 320-b of the second SS set (e.g., the second monitoring opportunity of each SS set has the same index value).Individual PDCCH candidates within a linked monitoring opportunity may be linked together for PDCCH repetition.

[0106]

[0109] Similarly, even if the TTI boundaries (e.g., symbol boundaries) of the monitoring opportunities are not aligned, the UE can determine that monitoring opportunities of different SS sets are linked based on verifying the number of monitoring opportunities within the TTI. For example, in slot 305-b, the UE can verify that the same number of ones are present in the RRC indication (e.g., monitoringSymbolsWithinSlot) for the first SS set as are present in the RRC indication (e.g., monitoringSymbolsWithinSlot) for the second SS set. The first SS set may be configured with the RRC parameter monitoringSymbolsWithinSlot (e.g., bitmap 00100001000000) containing two ones, which may indicate that monitoring opportunity 325-a (e.g., associated with CORESET having two symbols) begins during the third symbol 310 of slot 305-b and that monitoring opportunity 325-b begins during the eighth symbol 310 of slot 305-b. The second SS set may be configured with the RRC parameter monitoringSymbolsWithinSlot (bitmap 10000000010000) containing two ones, which may indicate that monitoring opportunity 330-a (e.g., associated with a CORESET having two symbols) begins during the first symbol 310 of slot 305-b and that monitoring opportunity 330-b begins during the tenth symbol 310 of slot 305-b. Because both bitmaps contain the same number of ones indicating the same number of monitoring opportunities, the UE may verify that the same number of monitoring opportunities exist in slot 305-b. Thus, the UE may determine that the monitoring opportunity 325-a of the first SS set is linked to the monitoring opportunity 330-a of the second SS set (e.g., the first monitoring opportunity of each SS set has the same index value), and may determine that the monitoring opportunity 325-b of the first SS set is linked to the monitoring opportunity 330-b of the second SS set (e.g., the second monitoring opportunity of each SS set has the same index value).Individual PDCCH candidates within a linked monitoring opportunity may be linked together for PDCCH repetition.

[0107]

[0110] Thus, in a slot 305 where two SS sets exist, the jth monitoring opportunity of a first SS set may be linked to the jth monitoring opportunity of a second SS set. A first iteration of a control message (e.g., a DCI message) may be received in a first PDCCH candidate in a first monitoring opportunity (e.g., monitoring opportunity 325-a) of the first SS set, and a second iteration of the control message (e.g., a DCI message) may be received in a first PDCCH candidate (e.g., linked to the first PDCCH candidate in monitoring opportunity 325-a) in a first monitoring opportunity (e.g., monitoring opportunity 330-a) of the second SS set. The UE may soft-combine the DCI received in the first PDCCH candidate in the first SS set with the DCI received in the first PDCCH candidate in the second SS set.

[0108]

[0111] In some examples, the UE may determine which monitoring opportunities of different SS sets located within different TTIs are linked, as described in more detail with reference to Figures 4-6.

[0109]

[0112] 4 illustrates an example timeline 400 supporting SS set monitoring for PDCCH repetitions in accordance with an aspect of the present disclosure. Timeline 400 may implement aspects of wireless communication system 100 and wireless communication system 200. For example, a base station and a UE may communicate according to timeline 400, which may be examples of the corresponding devices described with reference to FIGS. 1 and 2.

[0110]

[0113] In some examples, the base station may configure the UE with a first SS set and a second SS set, the first SS set and the second SS set having the same period k s , but with different offset values ​​(e.g., o for the first SS set,s,1 and o for the second SS set s,2 If the UE can support inter-slot PDCCH repetition in consecutive slots, the base station may determine whether the period and the two offset values ​​are (o s,2 -o s,1 )mod k s The offset of the two SS sets can be configured so that .times. ...

[0111]

[0114] The base station can configure the UE with a pair of SS set indices for inter-slot PDCCH repetition. The UE can configure the UE with two SS sets that are greater than one slot (e.g., k s >1) consist of the same period but with different offsets (e.g., o s,1 and o s,2 ) that includes a monitoring opportunity for the first SS set.

[0112]

number

[0113] and frame number n f,1 SCS scheme in a frame with μ, the number of slots per frame

[0114]

number

[0115] and, as a result,

[0116]

number

[0117] The first slot, where , is a second slot (e.g., slot number ) that contains a monitoring opportunity for a second SS set if one or more rules or conditions are met.

[0118]

number

[0119] and frame number n f,2 and a slot with

[0120] The UE may determine that one or more rules are met, such that a first PDCCH repetition in a first SS set is located within an earlier time (e.g., earlier TTI) than a second PDCCH repetition in a second SS set. For example, the UE may verify that a first condition is met:

[0121]

number

[0122] in the case of

[0123]

number

[0124] is. In some examples, the UE may verify that a second condition is met;

[0125]

number

[0126] is. The UE may apply one of these conditions, both of these conditions, or additional conditions, and verifying that such conditions or rules are met may result in the first repetition of the first SS set being located before the second repetition of the second SS set.

[0127] For example, the base station may configure the UE with a first SS set s=1 and a second SS set s=2, where k s =5, o s,1 =1, o s,2 = 3, with a 30KHz SCS and number of slots per frame

[0128]

number

[0129] It is expected that: Slot 405-a may include a monitoring opportunity for the first SS set and may have a slot number of 16.

[0130]

number

[0131] is. Slot 410-b, which is two slots after slot 405-a, may include a monitoring opportunity for the second SS set and may have slot number 18.

[0132]

number

[0133] is. The UE may determine that a monitoring opportunity for a first SS set located in slot 405-a is linked to a monitoring opportunity for a second SS set located in slot 410-b, and similarly, the monitoring opportunity in slot 405-b is linked to a monitoring opportunity in slot 410-c. By applying one or more conditions described herein, the UE may ensure that a first iteration of a DCI message is located earlier in time than a second iteration of the DCI message (e.g., slot 405-a carrying the first iteration is linked to slot 410-b carrying the second iteration, as opposed to slot 410-a carrying the second iteration earlier than slot 405-a).

[0134] In some examples, the base station may configure the UE with a first SS set s=1 and a second SS set s=2, where k s =5, o s,1 =4, o s,2 = 0, 30KHz SCS and number of slots per frame

[0135]

number

[0136] It is expected that: Slot 415-a may include a monitoring opportunity for the first SS set and may have a slot number of 19. Thus,

[0137]

number

[0138] is. Slot 420-b, which is one slot after slot 415-a, may include a monitoring opportunity for the second SS set and may have slot number 0 (e.g., the first slot of the next frame).

[0139]

number

[0140] is. The UE may determine that a monitoring opportunity for a first SS set located in slot 415-a is linked to a monitoring opportunity for a second SS set located in slot 420-b. By applying one or more conditions described herein, the UE may ensure that the first iteration of the DCI message is located earlier in time than the second iteration of the DCI message (e.g., slot 415-a carrying the first iteration is linked to slot 420-b carrying the second iteration, as opposed to slot 420-a carrying the second iteration earlier than slot 415-a). This pattern may be repeated for subsequent slots. For example, the UE may determine that a monitoring opportunity for a first SS set located in slot 415-b is linked to a monitoring opportunity for a second SS set located in slot 420-c.

[0141] In some examples, determining the order of SS sets may affect the application of conditions, or the determination of links between monitoring opportunities, or both. For example, a second SS set may be ordered before a first SS set, such that a monitoring opportunity in the second SS set carries a first repetition of a PDCCH message and a monitoring opportunity of the second SS set carries a second repetition of a DCI message. In such an example, the UE may verify that one or more rules are satisfied and may determine, for example, that slot 410-a of the second SS set is linked to slot 405-a and slot 410-b is linked to slot 405-b.

[0142] In some examples, the UE can determine which of two SS sets is ordered or prioritized before the other. For example, the UE can order two SS sets based on configuration by the base station. In such an example, the base station can send a configuration message to the UE indicating, for example, that a first SS set is to be ordered first (e.g., prioritized as the first SS set) and a second SS set is to be ordered second. The configuration message can indicate that a first SS set having an index value of 4 and a second SS set having an index value of 2 are linked and can further indicate that the first SS set (e.g., index value 4) is to be ordered before the second SS set (e.g., index value 2). In some examples, the UE can implicitly determine the ordering of the linked SS sets. For example, the UE can determine which SS set has a higher or lower index value (e.g., according to one or more pre-configured, standardized, or configured rules). In such an example, if a first SS set with an index value of 4 and a second SS set with an index value of 2 are linked, the UE may determine that the SS set with the smaller index value (e.g., the second SS set with an index value of 2) may be ordered above the first SS set (e.g., with the larger index value of 4). As described herein, if the order of the SS sets changes, the linked slots for PDCCH repetitions may change.

[0143]

[0120] Inter-slot repetition in the case of consecutive slots is described in more detail with reference to FIG.

[0144] 5 illustrates an example timeline 500 supporting SS set monitoring for PDCCH repetitions in accordance with aspects of the present disclosure. Timeline 500 may implement aspects of wireless communication system 100 and wireless communication system 200. For example, a base station and a UE may communicate according to timeline 500, and the base station and the UE may be examples of the corresponding devices described with reference to FIGS. 1 and 2.

[0145] In some examples, with respect to the duration of the SS sets, the UE may decide that the SS sets are only present within one slot in the period (e.g., both SS sets are present within one slot of duration T s =1), or the base station may not configure a value and the UE may assume a duration of 1 slot. For example, a duration of 1 slot (whether configured or assumed) is shown or described with reference to FIG. 4.

[0146] In some examples, as described with reference to FIG. 5, the duration may be longer than one slot, but may be the same for each SS set. For example, the first SS set may be T s In such an example, the UE may determine a link between the first slot of the duration of the SS set and the first slot of the duration of the second SS set, and may assume a one-to-one mapping of the remaining slots of those durations. For example, slot 505-a may have a duration of T s = 3, where k s = 5. Slot 505-a may contain a monitoring opportunity for a first SS set, and slot 510-a may contain a monitoring opportunity for a second SS set. Slot 505-a may have slot number 16, so

[0147]

number

[0148] is. Slot 510-a may have slot number 18 (e.g., in the same frame), so

[0149]

number

[0150] is. Thus, by applying one or more rules described with reference to Figure 4, the UE can determine that slot 505-a is linked with slot 510-a, and that each PDCCH candidate in the monitoring period of the first SS set in slot 505-a is linked with a corresponding PDCCH candidate in the monitoring period of the second SS set in slot 510-a. s Given a duration of .times. ...

[0151] In some examples, the UE may be configured for consecutive inter-slot repetitions, where (o s,2 -o s,1 )mod k s It may consist of an offset value such that

[0152]

[0125] In some instances, there may be multiple monitoring opportunities within linked slots, as will be described in more detail with reference to FIG.

[0153] 6 illustrates an example timeline 600 supporting SS set monitoring for PDCCH repetitions in accordance with aspects of the present disclosure. Timeline 600 may implement aspects of wireless communication system 100 and wireless communication system 200. For example, a base station and a UE may communicate according to timeline 600, and the base station and the UE may be examples of the corresponding devices described with reference to FIGS. 1 and 2.

[0154] The base station may configure one or more monitoring opportunities within a single slot (e.g., via the RRC parameter monitoringSymbolsWithinSlot). In some examples, for inter-slot PDCCH repetitions, the number of monitoring opportunities within each slot may be equal to 1 (e.g., the number of 1s in the bitmap of the RRC parameter monitoringSymbolsWithinSlot), and may be equal to 1 for both SS sets. In such examples, the UE may determine that a single monitoring opportunity in a first slot of a first SS set is linked only to monitoring opportunities in linked slots of a second SS set. In some examples, the linking of monitoring slots may be implicit based on the linking of slots described with reference to Figures 4 and 5. In some cases, the base station may be constrained to configure only one monitoring opportunity per slot for SS sets linked in different slots.

[0155] In some examples, the base station may be permitted to configure only one monitoring opportunity in each linked slot of two SS sets. The UE may expect the same number of monitoring opportunities in the linked slots for both SS sets (e.g., the same number of 1's in the bitmap of the RRC parameter monitoringSymbolsWithinSlot). In linked slots 605-a and 605-c where two SS sets exist, the first slot 605-a (e.g., slot

[0156]

number

[0157] ) the jth monitoring opportunity of the first SS set in the second slot 605-c (e.g., slot

[0158]

number

[0159] ), where:

[0160]

number

[0161] and

[0162]

number

[0163] are two different slots determined according to the rules described with reference to Figure 4. A first repetition of the control message (e.g., DCI message) may be received in a first PDCCH candidate in a first monitoring opportunity (e.g., monitoring opportunity 610-a) of a first SS set, and a second repetition of the control message (e.g., DCI message) may be received in a first PDCCH candidate (e.g., linked with the first PDCCH candidate in monitoring opportunity 610-a) in a first monitoring opportunity (e.g., monitoring opportunity 615-a) of a second SS set. The UE may soft-combine the DCI received in the first PDCCH candidate in the first SS set with the DCI received in the first PDCCH candidate in the second SS set.

[0164] In some examples, the UE may determine (e.g., using one or more rules described with reference to FIGS. 4 and 5) that slot 605-a is linked with slot 605-c. Monitoring opportunities 610-a and 610-b for a first SS set may be located in slot 605-a, and monitoring opportunities 615-a and 615-b for a second SS set may be located in slot 605-c. The UE may expect the same number of monitoring opportunities in slot 605-a for both SS sets. For example, the UE may verify that the same number of 1's are present in the RRC indication (e.g., monitoringSymbolsWithinSlot) for the first SS set as are present in the RRC indication (e.g., monitoringSymbolsWithinSlot) for the second SS set. In such examples, the UE may determine that monitoring opportunities with the same index value (j) in the two SS sets are linked.

[0165] For example, a first SS set may be configured with the RRC parameter monitoringSymbolsWithinSlot (e.g., bitmap 00100001000000) containing two 1's, which may indicate that monitoring opportunity 610-a (e.g., associated with a CORESET having two symbols 620) begins during the third symbol 620 of slot 605-a and that monitoring opportunity 610-b begins during the eighth symbol 620 of slot 605-a. A second SS set may be configured with the RRC parameter monitoringSymbolsWithinSlot (bitmap 10000000001000) containing two 1's, which may indicate that monitoring opportunity 615-a (e.g., associated with a CORESET having two symbols) begins during the first symbol 620 of slot 605-c and that monitoring opportunity 615-b begins during the eleventh symbol 620 of slot 605-c. Because both bitmaps contain the same number of 1's indicating the same number of monitoring opportunities, the UE can verify that the same number of monitoring opportunities exists in slot 605-a and slot 605-b. Thus, the UE can determine that the monitoring opportunity 610-a of the first SS set is linked to the monitoring opportunity 615-a of the second SS set (e.g., the first monitoring opportunity of each SS set has the same index value), and can determine that the monitoring opportunity 610-b of the first SS set is linked to the monitoring opportunity 615-b of the second SS set (e.g., the second monitoring opportunity of each SS set has the same index value). Individual PDCCH candidates within linked monitoring opportunities may be linked to each other for PDCCH repetition.

[0166] In linked slots 605-a and 605-c where two SS sets exist, the jth monitoring opportunity of a first SS set may be linked with the jth monitoring opportunity of a second SS set. A first iteration of a control message (e.g., a DCI message) may be received in a first PDCCH candidate in the first monitoring opportunity (e.g., monitoring opportunity 325-a) of the first SS set, and a second iteration of the control message (e.g., a DCI message) may be received in a first PDCCH candidate (e.g., linked to the first PDCCH candidate in monitoring opportunity 325-a) in the first monitoring opportunity (e.g., monitoring opportunity 330-a) of the second SS set. The UE may soft-combine the DCI received in the first PDCCH candidate in the first SS set with the DCI received in the first PDCCH candidate in the second SS set.

[0167] 7 shows a block diagram 700 of a device 705 that supports SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The device 705 may be an example of an aspect of a UE 115 described herein. The device 705 may include a receiver 710, a transmitter 715, and a communications manager 720. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0168] The receiver 710 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to SS set monitoring for PDCCH repetitions). The information may be passed to other components of the device 705. The receiver 710 may utilize a single antenna or a set of multiple antennas.

[0169] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to SS set monitoring for PDCCH repetitions). In some examples, the transmitter 715 may be co-located with the receiver 710 within a transceiver module. The transmitter 715 may utilize a single antenna or a set of multiple antennas.

[0170]

[0135] The communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be examples of means for performing various aspects of SS set monitoring for PDCCH repetitions described herein. For example, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

[0171] In some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., communications management circuitry), software (e.g., executed by a processor), or any combination thereof. The hardware may include a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in this disclosure. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by the processor executing instructions stored in the memory).

[0172] Additionally or alternatively, in some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware, software (e.g., executed by a processor), or any combination thereof. If implemented in software executed by a processor, the functionality of the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be performed by a general-purpose processor (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure), a DSP, a central processing unit (CPU), a graphics processing unit (GPU), an ASIC, an FPGA, or any combination thereof, or other programmable logic device.

[0173] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperating with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may receive information from the receiver 710, send information to the transmitter 715, or be integrated in combination with the receiver 710, the transmitter 715, or both to receive information, transmit information, or perform various other operations described herein.

[0174] Communications manager 720 can support wireless communications in a UE according to examples disclosed herein. For example, communications manager 720 can be configured as or otherwise support a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval. For example, communications manager 720 can be configured as or otherwise support a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. Communications manager 720 can be configured as or otherwise support a means for monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0175] Additionally or alternatively, communications manager 720 can support wireless communications in a UE according to examples disclosed herein. For example, communications manager 720 can be configured with or otherwise support a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval. For example, communications manager 720 can be configured with or otherwise support a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition. The communications manager 720 may be configured with or otherwise support a means for monitoring a first group of downlink control channel candidates for a first SS set and a second group of downlink control channel candidates for a second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0176]

[0141] By including or configuring a communications manager 720 according to the examples described herein, the device 705 (e.g., a processor controlling or otherwise coupled to the receiver 710, transmitter 715, communications manager 720, or a combination thereof) can support techniques for PDCCH repetition that result in more efficient use of available resources, improved PDCCH repetition capabilities, more efficient use of computational resources in the device, etc.

[0177] 8 shows a block diagram 800 of a device 805 that supports SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The device 805 may be an example of an aspect of the device 705 or UE 115 described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0178] The receiver 810 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to SS set monitoring for PDCCH repetitions). The information may be passed to other components of the device 805. The receiver 810 may utilize a single antenna or a set of multiple antennas.

[0179] The transmitter 815 may provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to SS set monitoring for PDCCH repetitions). In some examples, the transmitter 815 may be co-located with the receiver 810 within a transceiver module. The transmitter 815 may utilize a single antenna or a set of multiple antennas.

[0180] The device 805, or various components thereof, may be an example of a means for performing various aspects of SS set monitoring for PDCCH repetitions described herein. For example, the communications manager 820 may include a configuration information manager 825, a repetition manager 830, a monitoring manager 835, an SS set link manager 840, or any combination thereof. The communications manager 820 may be an example of an aspect of the communications manager 720 described herein. In some examples, the communications manager 820, or various components thereof, may be configured to use or otherwise cooperate with the receiver 810, the transmitter 815, or both to perform various operations (e.g., receiving, monitoring, transmitting). For example, the communications manager 820 may be integrated in combination with the receiver 810, the transmitter 815, or both to receive information from the receiver 810, send information to the transmitter 815, or receive information, transmit information, or perform various other operations described herein.

[0181] The communications manager 820 can support wireless communications in a UE according to examples disclosed herein. The configuration information manager 825 can be configured as, or otherwise support, a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval. The repetition manager 830 can be configured as, or otherwise support, a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The monitoring manager 835 can be configured as, or otherwise support, a means for monitoring a first group of downlink control channel candidates in a first SS set and a second group of downlink control channel candidates in a second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0182] Additionally or alternatively, communications manager 820 can support wireless communications in a UE according to examples disclosed herein. Configuration information manager 825 can be configured as or otherwise support a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval. SS set link manager 840 can be configured as or otherwise support a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The monitoring manager 835 may be configured as or otherwise support a means for monitoring a first group of downlink control channel candidates of a first SS set and a second group of downlink control channel candidates of a second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0183] FIG. 9 shows a block diagram 900 of a communications manager 920 supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. Communications manager 920 may be an example of aspects of communications manager 720, communications manager 820, or both described herein. Communications manager 920, or various components thereof, may be an example of a means for performing various aspects of SS set monitoring for PDCCH repetitions described herein. For example, communications manager 920 may include a configuration information manager 925, a repetition manager 930, a monitoring manager 935, an SS set link manager 940, a link rule manager 945, an SS set ordering manager 950, or any combination thereof. Each of these components may communicate with one another directly or indirectly (e.g., via one or more buses).

[0184] The communications manager 920 can support wireless communications in a UE according to examples disclosed herein. The configuration information manager 925 can be configured as, or otherwise support, a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval. The repetition manager 930 can be configured as, or otherwise support, a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The monitoring manager 935 can be configured as, or otherwise support, a means for monitoring a first group of downlink control channel candidates in a first SS set and a second group of downlink control channel candidates in a second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0185]

[0150] In some examples, the SS set link manager 940 may be configured with or otherwise support a means for verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern, and monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based on the verification.

[0186]

[0151] In some examples, the SS set link manager 940 may be configured as or otherwise support a means for determining that monitoring opportunities from each of the first SS and the second SS are linked based on the temporal ordering of the monitoring opportunities within the first SS and the second SS, respectively, based on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

[0187]

[0152] In some examples, the SS set link manager 940 may be configured as or otherwise support a means for determining that monitoring opportunities from each of the first SS and the second SS are linked based on the order of index values ​​associated with the monitoring opportunities within the first SS and the second SS, respectively, based on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

[0188]

[0153] In some examples, the SS set link manager 940 may be configured as or otherwise support a means for determining that a first monitoring opportunity of a first SS set is linked with a second monitoring opportunity of a second SS set based on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

[0189]

[0154] In some examples, the SS set link manager 940 may be configured as or otherwise support a means for determining, based on determining that a first monitoring opportunity is linked with a second monitoring opportunity, that a first downlink control channel candidate of a first group of downlink control channel candidates located within the first monitoring opportunity is linked with a second downlink control channel candidate of a second group of downlink control channel candidates located within the second monitoring opportunity.

[0190] In some examples, the repetition manager 930 may be configured or otherwise support a means for receiving, based on the monitoring, a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate. In some examples, the repetition manager 930 may be configured or otherwise support a means for combining the first iteration of the downlink control message and the second iteration of the downlink control message.

[0191]

[0156] In some examples, the SS set link manager 940 may be configured with or otherwise support a means for verifying that the duration of a first SS set within the period of the monitoring pattern is the same as the duration of a second SS set within the period of the monitoring pattern, and monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based on the verification.

[0192] Additionally or alternatively, communications manager 920 can support wireless communications in a UE according to examples disclosed herein. In some examples, configuration information manager 925 can be configured as or otherwise support a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval. SS set link manager 940 can be configured as or otherwise support a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. In some examples, the monitoring manager 935 may be configured as or otherwise support a means for monitoring a first group of downlink control channel candidates of a first SS set and a second group of downlink control channel candidates of a second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0193] In some examples, the linking rules manager 945 may be configured or otherwise support a means for comparing a first monitoring pattern with a second monitoring pattern to determine if a set of one or more rules is satisfied. In some examples, the linking rules manager 945 may be configured or otherwise support a means for determining, based on one or more rules being satisfied, that a first downlink control channel candidate of a first group of downlink control channel candidates is linked with a second downlink control channel candidate of a second group of downlink control channel candidates.

[0194]

[0159] In some examples, the link rule manager 945 may be configured as or otherwise support a means for determining that one or more rules are satisfied based at least in part on the first slot number of the first transmission time interval, the first frame number associated with the first transmission time interval, the first offset of the first SS set, the second slot number of the second transmission time interval, the second frame number associated with the second transmission time interval, the second offset of the second SS set, or any combination thereof, where the second frame number multiplied by the number of slots per frame plus the second slot number of the slot is greater than the number of slots per frame times the first frame number plus the second slot number, which is greater than the second frame number multiplied by the number of frames per slot minus the period of the same period of the first SS set and the second SS set.

[0195]

[0160] In some examples, the SS set ordering manager 950 may be configured as or otherwise support a means for ordering a first SS set and a second SS set, and determining that one or more rules are satisfied is based on ordering the first SS set and the second SS set.

[0196]

[0161] In some examples, the SS set ordering manager 950 may be configured as or otherwise support a means for receiving an indication from a base station that a first SS set is to be ordered before a second SS set.

[0197]

[0162] In some examples, the SS set ordering manager 950 may be configured as or otherwise support a means for identifying a first index for a first SS set and a second index for a second SS set, and comparing the first monitoring pattern with the second monitoring pattern includes comparing the first index with the second index.

[0198] In some examples, the repetition manager 930 may be configured or otherwise support a means for receiving a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate based on one or more rules being satisfied. In some examples, the repetition manager 930 may be configured or otherwise support a means for combining the first iteration of the downlink control message and the second iteration of the downlink control message.

[0199]

[0164] In some examples, the link rule manager 945 may be configured as or otherwise support a means for determining that a first transmission time interval precedes a second transmission time interval based on determining whether one or more rules are satisfied.

[0200]

[0165] In some examples, the duration of the first SS set within the period of the monitoring pattern is the same as the duration of the second SS set within the period of the monitoring pattern.

[0201]

[0166] In some examples, the duration includes a transmission time interval.

[0202]

[0167] In some examples, the duration comprises a set of consecutive transmission time intervals.

[0203] In some examples, SS set link manager 940 may be configured as or otherwise support a means for verifying that the number of monitoring opportunities of a first monitoring pattern is the same as the number of monitoring opportunities of a second monitoring pattern. In some examples, SS set link manager 940 may be configured as or otherwise support a means for determining that a first monitoring opportunity of a first SS set is linked with a second monitoring opportunity of a second SS set based on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities. In some examples, SS set link manager 940 may be configured as or otherwise support a means for determining that a first downlink control channel candidate of a first group of downlink control channel candidates is linked with a second downlink control channel candidate of a second group of downlink control channel candidates based on determining that the first monitoring opportunity is linked with the second monitoring opportunity.

[0204] In some examples, the repetition manager 930 may be configured or otherwise support a means for receiving, based on the monitoring, a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate. In some examples, the repetition manager 930 may be configured or otherwise support a means for combining the first iteration of the downlink control message and the second iteration of the downlink control message.

[0205] 10 shows a diagram of a system 1000 including a device 1005 supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The device 1005 may be an example of or include components of the device 705, device 805, or UE 115 described herein. The device 1005 may be in wireless communication with one or more base stations 105, UEs 115, or any combination thereof. The device 1005 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1020, an input / output (I / O) controller 1010, a transceiver 1015, an antenna 1025, memory 1030, code 1035, and a processor 1040. These components may be coupled to or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1045).

[0206] The I / O controller 1010 can manage input and output signals for the device 1005. The I / O controller 1010 can also manage peripheral devices not built into the device 1005. In some cases, the I / O controller 1010 can represent a physical connection or port to an external peripheral. In some cases, the I / O controller 1010 can utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 1010 can represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 1010 may be implemented as part of a processor, such as the processor 1040. In some cases, a user may interact with the device 1005 through the I / O controller 1010 or through hardware components controlled by the I / O controller 1010 .

[0207] In some cases, the device 1005 may include a single antenna 1025. However, in some other cases, the device 1005 may have two or more antennas 1025 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1015 may communicate bidirectionally via one or more antennas 1025, a wired link, or a wireless link, as described herein. For example, the transceiver 1015 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1015 may also include a modem for modulating packets and providing the modulated packets to one or more antennas 1025 for transmission, and demodulating packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and one or more antennas 1025, may be an example of the transmitter 715, transmitter 815, receiver 710, receiver 810, or any combination or component thereof described herein.

[0208]

[0173] Memory 1030 may include random access memory (RAM) and read-only memory (ROM). Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed by processor 1040, cause device 1005 to perform various functions described herein. Code 1035 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, code 1035 may not be directly executable by processor 1040, but (e.g., when compiled and executed) may cause a computer to perform the functions described herein. In some cases, memory 1030 may include a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0209] The processor 1040 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a GPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be incorporated into the processor 1040. The processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting SS set monitoring for PDCCH repetitions). For example, the device 1005 or a component of the device 1005 may include the processor 1040 and the memory 1030 coupled to the processor 1040, where the processor 1040 and the memory 1030 are configured to perform various functions described herein.

[0210] The communications manager 1020 can support wireless communications in a UE according to examples disclosed herein. For example, the communications manager 1020 can be configured as or otherwise support a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval. The communications manager 1020 can be configured as or otherwise support a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition. The communications manager 1020 can be configured as or otherwise support a means for monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0211] Additionally or alternatively, communications manager 1020 can support wireless communications in a UE according to examples disclosed herein. For example, communications manager 1020 can be configured with or otherwise support a means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval. Communications manager 1020 can be configured with or otherwise support a means for receiving, from a base station, an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition. The communications manager 1020 may be configured with or otherwise support a means for monitoring a first group of downlink control channel candidates for a first SS set and a second group of downlink control channel candidates for a second SS set based on the first SS set and the second SS set having the same period but different offsets.

[0212]

[0177] By including or configuring a communications manager 1020 according to the examples described in this specification, the device 1005 can support techniques for PDCCH repetition that result in more efficient use of available resources, improved PDCCH repetition capabilities, more efficient use of computational resources in the device, and the like.

[0213] In some examples, the communications manager 1020 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1015, one or more antennas 1025, or any combination thereof. Although the communications manager 1020 is shown as a separate component, in some examples, one or more functions described with reference to the communications manager 1020 may be supported by or performed by the processor 1040, the memory 1030, the code 1035, or any combination thereof. For example, the code 1035 may include instructions executable by the processor 1040 to cause the device 1005 to perform various aspects of SS set monitoring for PDCCH repetitions as described herein, or the processor 1040 and the memory 1030 may be otherwise configured to perform or support such operations.

[0214] FIG. 11 shows a flowchart illustrating a method 1100 for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The operations of method 1100 may be implemented by a UE or components thereof described herein. For example, the operations of method 1100 may be performed by a UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0215] At 1105, the method may include receiving, from the base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval. The operations of 1105 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1105 may be performed by a configuration information manager 925 described with reference to FIG. 9.

[0216] At 1110, the method may include receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The operations of 1110 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1110 may be performed by a repetition manager 930 described with reference to FIG. 9.

[0217] At 1115, the method may include monitoring a first group of downlink control channel candidates of a first SS set and a second group of downlink control channel candidates of a second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset. The operations of 1115 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1115 may be performed by a monitoring manager 935 described with reference to FIG. 9.

[0218] FIG. 12 shows a flowchart illustrating a method 1200 for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The operations of method 1200 may be implemented by a UE or components thereof described herein. For example, the operations of method 1200 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0219] At 1205, the method may include receiving, from the base station, a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval. The operations of 1205 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1205 may be performed by a configuration information manager 925 described with reference to FIG. 9.

[0220] At 1210, the method may include receiving, from the base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The operations of 1210 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1210 may be performed by a repetition manager 930 described with reference to FIG. 9.

[0221] At 1215, the method may include verifying that a number of monitoring opportunities of the first monitoring pattern is the same as a number of monitoring opportunities of the second monitoring pattern, where monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based on the verification. The operations of 1215 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1215 may be performed by SS set link manager 940 described with reference to FIG. 9.

[0222] At 1220, the method may include determining that a first monitoring opportunity of a first SS set is linked with a second monitoring opportunity of a second SS set based on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities. The operations of 1220 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1220 may be performed by SS set link manager 940 described with reference to FIG. 9.

[0223] At 1225, the method may include monitoring a first group of downlink control channel candidates of a first SS set and a second group of downlink control channel candidates of a second SS set based on the first monitoring pattern and the second monitoring pattern having the same period and offset. The operations of 1225 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1225 may be performed by a monitoring manager 935 described with reference to FIG. 9.

[0224] FIG. 13 shows a flowchart illustrating a method 1300 for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The operations of method 1300 may be implemented by a UE or components thereof described herein. For example, the operations of method 1300 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0225] At 1305, the method may include receiving, from the base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval. The operations of 1305 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1305 may be performed by a configuration information manager 925 described with reference to FIG. 9.

[0226] At 1310, the method may include receiving, from the base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The operations of 1310 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1310 may be performed by the SS set link manager 940 described with reference to FIG. 9.

[0227] At 1315, the method may include monitoring a first group of downlink control channel candidates for the first SS set and a second group of downlink control channel candidates for the second SS set based on the first SS set and the second SS set having the same period but different offsets. The operations of 1315 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1315 may be performed by a monitoring manager 935 described with reference to FIG. 9.

[0228] FIG. 14 shows a flowchart illustrating a method 1400 for supporting SS set monitoring for PDCCH repetitions according to an aspect of the present disclosure. The operations of method 1400 may be implemented by a UE or components thereof described herein. For example, the operations of method 1400 may be performed by the UE 115 described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using dedicated hardware.

[0229] At 1405, the method may include receiving, from the base station, a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval. The operations of 1405 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1405 may be performed by a configuration information manager 925 described with reference to FIG. 9.

[0230] At 1410, the method may include receiving, from a base station, an indication that a first group of downlink control channel candidates in a first SS set are linked with a second group of downlink control channel candidates in a second SS set for downlink control channel repetition. The operations of 1410 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1410 may be performed by SS set link manager 940 described with reference to FIG. 9.

[0231] At 1415, the method may include comparing the first monitoring pattern to the second monitoring pattern to determine whether a set of one or more rules is satisfied. The operations of 1415 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1415 may be performed by link rule manager 945 described with reference to FIG. 9.

[0232] At 1420, the method may include determining, based on one or more rules being satisfied, that a first downlink control channel candidate of a first group of downlink control channel candidates is linked with a second downlink control channel candidate of a second group of downlink control channel candidates. The operations of 1420 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1420 may be performed by a linking rules manager 945 described with reference to FIG. 9.

[0233] At 1425, the method may include monitoring a first group of downlink control channel candidates for the first SS set and a second group of downlink control channel candidates for the second SS set based on the first SS set and the second SS set having the same period but different offsets. The operations of 1425 may be performed in accordance with examples disclosed herein. In some examples, aspects of the operations of 1425 may be performed by a monitoring manager 935 described with reference to FIG. 9.

[0234]

[0199] The following provides an overview of aspects of the present disclosure.

[0235]

[0200] Aspect 1: A method for wireless communication in a UE, comprising: receiving from a base station a configuration indicating a first monitoring pattern for a first SS set within a transmission time interval and a second monitoring pattern for a second SS set within the transmission time interval; receiving from the base station an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition; and monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset.

[0236]

[0201] Aspect 2: The method of aspect 1, further comprising verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern, and monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification.

[0237]

[0202] Aspect 3: The method of aspect 2, further comprising determining that the monitoring opportunities from each of the first SS and the second SS are linked based at least in part on the temporal ordering of the monitoring opportunities within the first SS and the second SS, respectively, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

[0238]

[0203] Aspect 4: The method of aspect 2, further comprising determining that the monitoring opportunities from each of the first SS and the second SS are linked based at least in part on the order of index values ​​associated with the monitoring opportunities within the first SS and the second SS, respectively, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

[0239]

[0204] Aspect 5: The method of aspect 2, further comprising determining that a first monitoring opportunity of a first SS set is linked with a second monitoring opportunity of a second SS set based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

[0240]

[0205] Aspect 6: The method of aspect 5, further comprising, based at least in part on determining that the first monitoring opportunity is linked with the second monitoring opportunity, determining that a first downlink control channel candidate of a first group of downlink control channel candidates located within the first monitoring opportunity is linked with a second downlink control channel candidate of a second group of downlink control channel candidates located within the second monitoring opportunity.

[0241]

[0206] Aspect 7: The method of aspect 6, further comprising receiving, based at least in part on the monitoring, a first iteration of a downlink control message on a first downlink control channel candidate and a second iteration of a downlink control message on a second downlink control channel candidate, and combining the first iteration of the downlink control message and the second iteration of the downlink control message.

[0242]

[0207] Aspect 8: The method of any of aspects 1 to 7, further comprising verifying that the duration of the first SS set within the period of the monitoring pattern is the same as the duration of the second SS set within the period of the monitoring pattern, and wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification.

[0243]

[0208] Aspect 9: A method for wireless communication in a UE, comprising: receiving from a base station a configuration indicating a first monitoring pattern for a first SS set within a first transmission time interval and a second monitoring pattern for a second SS set within a second transmission time interval; receiving from the base station an indication that a first group of downlink control channel candidates in the first SS set are linked with a second group of downlink control channel candidates in the second SS set for downlink control channel repetition; and monitoring the first group of downlink control channel candidates of the first SS set and the second group of downlink control channel candidates of the second SS set based at least in part on the first SS set and the second SS set having the same period but different offsets.

[0244]

[0209] Aspect 10: The method of aspect 9, further comprising: comparing the first monitoring pattern with the second monitoring pattern to determine whether a set of one or more rules is satisfied; and determining, based at least in part on the one or more rules being satisfied, that a first downlink control channel candidate of a first group of downlink control channel candidates is linked with a second downlink control channel candidate of a second group of downlink control channel candidates.

[0245]

[0210] Aspect 11: The method of aspect 10, further comprising determining that one or more rules are satisfied based at least in part on a first slot number of a first transmission time interval, a first frame number associated with the first transmission time interval, a first offset of a first SS set, a second slot number of a second transmission time interval, a second frame number associated with the second transmission time interval, a second offset of a second SS set, or any combination thereof, wherein the second frame number multiplied by the number of slots per frame plus the second slot number of the slot is greater than the number of slots per frame times the first frame number plus the second slot number, which is greater than the second frame number multiplied by the number of frames per slot minus the period of the same period of the first SS set and the second SS set.

[0246]

[0211] Aspect 12: The method of aspect 11, further comprising ordering the first SS set and the second SS set, wherein determining that one or more rules are satisfied is based at least in part on ordering the first SS set and the second SS set.

[0247]

[0212] Aspect 13: The method of aspect 12, further comprising receiving an indication from the base station that the first SS set is to be ordered before the second SS set.

[0248]

[0213] Aspect 14: The method of any of aspects 12 to 13, further comprising identifying a first index for the first SS set and a second index for the second SS set, and comparing the first monitoring pattern with the second monitoring pattern comprises comparing the first index with the second index.

[0249]

[0214] Aspect 15: The method of any of aspects 10 to 14, further comprising receiving a first repetition of a downlink control message on a first downlink control channel candidate and a second repetition of a downlink control message on a second downlink control channel candidate based at least in part on one or more rules being satisfied, and combining the first repetition of the downlink control message and the second repetition of the downlink control message.

[0250]

[0215] Aspect 16: The method of any of aspects 10 to 15, further comprising determining that the first transmission time interval precedes the second transmission time interval based at least in part on determining whether one or more rules are satisfied.

[0251] Aspect 17: The method of any of aspects 9-16, wherein the duration of the first SS set within the period of the monitoring pattern is the same as the duration of the second SS set within the period of the monitoring pattern.

[0252]

[0217] Aspect 18: The method of aspect 17, wherein the duration comprises a transmission time interval.

[0253]

[0218] Aspect 19: The method of any of aspects 17 to 18, comprising a set of transmission time intervals that are contiguous in duration.

[0254]

[0219] Aspect 20: The method of any of aspects 9 to 19, further comprising: verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern; determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that a first monitoring opportunity of the first SS set is linked to a second monitoring opportunity of the second SS set; and determining, based at least in part on determining that the first monitoring opportunity is linked to the second monitoring opportunity, that a first downlink control channel candidate of the first group of downlink control channel candidates is linked to a second downlink control channel candidate of the second group of downlink control channel candidates.

[0255]

[0220] Aspect 21: The method of aspect 20, further comprising receiving, based at least in part on the monitoring, a first repetition of a downlink control message on a first downlink control channel candidate and a second repetition of a downlink control message on a second downlink control channel candidate, and combining the first repetition of the downlink control message and the second repetition of the downlink control message.

[0256]

[0221] Aspect 22: An apparatus for wireless communication in a UE, comprising at least one processor and a memory coupled to the at least one processor, the memory storing instructions executable by the at least one processor to cause the apparatus to perform any of the methods of aspects 1 to 8.

[0257]

[0222] Aspect 23: An apparatus for wireless communication in a UE, comprising at least one means for performing the method of any of aspects 1 to 8.

[0258]

[0223] Aspect 24: A non-transitory computer-readable medium storing code for wireless communication in a UE, the code comprising instructions executable by a processor to perform any of the methods of aspects 1 to 8.

[0259]

[0224] Aspect 25: An apparatus for wireless communication in a UE, comprising at least one processor and a memory coupled to the at least one processor, the memory storing instructions executable by the at least one processor to cause the apparatus to perform any of the methods of aspects 9 to 21.

[0260]

[0225] Aspect 26: An apparatus for wireless communication in a UE, comprising at least one means for performing the method of any of aspects 9 to 21.

[0261]

[0226] Aspect 27: A non-transitory computer-readable medium storing code for wireless communication in a UE, the code comprising instructions executable by a processor to perform any of the methods of aspects 9 to 21.

[0262]

[0227] It should be noted that the methods described herein describe possible implementations, that the operations and steps may be rearranged or otherwise modified, and that other implementations are possible. Furthermore, aspects from two or more of the methods may be combined.

[0263] Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described as examples, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used throughout much of the description, the techniques described herein are applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR. For example, the techniques described are applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDM, and other systems and radio technologies, including future systems and radio technologies not explicitly mentioned herein.

[0264]

[0229] The information and signals described herein may be represented using any of a wide variety of technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0265]

[0230] The various example blocks and components described in connection with the disclosure herein may be implemented or performed using a general purpose processor, a DSP, an ASIC, a CPU, a GPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0266] The functions described herein may be implemented in hardware, software executed by a processor, or any combination thereof. Software should be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. If implemented in software executed by a processor, the functions may be stored on or transmitted over a computer-readable medium as one or more instructions or code. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, depending on the nature of the software, the functions described herein may be implemented using software executed by a processor, hardware, hardwiring, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that portions of the functions are implemented in different physical locations.

[0267]

[0232] Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, Electrically Erasable Programmable ROM (EEPROM), flash memory, phase-change memory, compact disc (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer-readable media. As used herein, disk and disc include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs, where disks typically reproduce data magnetically and discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0268]

[0233] As used herein, including in the claims, "or" used within a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such as, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (e.g., A and B and C). Also, the phrase "based on" as used herein should not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, the phrase "based on" as used herein should be construed similarly to the phrase "based at least in part on." As used herein, the term "and / or" when used within a list of two or more items means that any one of the listed items may be utilized alone, or any combination of two or more of the listed items may be utilized. For example, if a composition is described as including components A, B, and / or C, the composition can include only A, only B, only C, a combination of A and B, a combination of A and C, a combination of B and C, or a combination of A, B, and C.

[0269]

[0234] In the accompanying figures, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes among the similar components. If only a first reference label is used herein, the description is applicable to any of the similar components having the same first reference label, regardless of a second reference label, or other subsequent reference label.

[0270]

[0235] The descriptions set forth herein with reference to the accompanying drawings describe exemplary configurations and do not necessarily represent all examples that may be implemented or that are within the scope of the claims. As used herein, the term "example" means "serving as an example, instance, or illustration" and does not mean "preferred" or "advantageous over other examples." The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0271]

[0236] The description herein is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. The inventions described in the claims of the present application as originally filed are set forth below. [C1] 1. A method for wireless communication in a user equipment (UE), comprising: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a transmission time interval and a second monitoring pattern for a second search space set within the transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset; A method comprising: [C2] verifying that a number of monitoring opportunities of the first monitoring pattern is the same as a number of monitoring opportunities of the second monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification. The method of C1, further comprising: [C3] determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on a temporal ordering of the monitoring opportunities within the first search space set and the second search space set, respectively. The method of C2, further comprising: [C4] determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on an order of index values ​​associated with the monitoring opportunities in the first search space set and the second search space set, respectively. The method of C2, further comprising: [C5] The method of C2, further comprising determining that a first monitoring opportunity of the first search space set is linked with a second monitoring opportunity of the second search space set based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities. [C6] determining, based at least in part on determining that the first monitoring occasion is linked with the second monitoring occasion, that a first downlink control channel candidate of the first group of downlink control channel candidates located within the first monitoring occasion is linked with a second downlink control channel candidate of the second group of downlink control channel candidates located within the second monitoring occasion. The method of C5, further comprising: [C7] receiving, based at least in part on the monitoring, a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate; combining the first repetition of the downlink control message and the second repetition of the downlink control message; The method of C6, further comprising: [C8] verifying that a duration of the first search space set within the period of the monitoring pattern is the same as a duration of the second search space set within the period of the monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification. The method of C1, further comprising: [C9] 1. A method for wireless communication in a user equipment (UE), comprising: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a first transmission time interval and a second monitoring pattern for a second search space set within a second transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first search space set and the second search space set having the same period but different offsets; A method comprising: [C10] comparing the first monitoring pattern with the second monitoring pattern to determine if a set of one or more rules is satisfied; determining, based at least in part on the one or more rules being satisfied, that a first downlink control channel candidate of the first group of downlink control channel candidates is linked with a second downlink control channel candidate of the second group of downlink control channel candidates; The method of C9, further comprising: [C11] determining that the one or more rules are satisfied based at least in part on a first slot number of the first transmission time interval, a first frame number associated with the first transmission time interval, a first offset of the first search space set, a second slot number of the second transmission time interval, a second frame number associated with the second transmission time interval, a second offset of the second search space set, or any combination thereof, wherein the second frame number multiplied by the number of slots per frame plus the second slot number of a slot is greater than the first frame number multiplied by the number of slots per frame plus the second slot number, which is greater than the second frame number multiplied by the number of frames per slot plus the second slot number minus the duration of the same period of the first search space set and the second search space set; The method of C10, further comprising: [C12] ordering the first search space set and the second search space set, wherein determining that the one or more rules are satisfied is based at least in part on ordering the first search space set and the second search space set. The method of C11, further comprising: [C13] receiving an indication from the base station that the first search space set is to be ordered before the second search space set. The method of C12, further comprising: [C14] identifying a first index for the first search space set and a second index for the second search space set, wherein comparing the first monitoring pattern to the second monitoring pattern comprises comparing the first index to the second index. The method of C12, further comprising: [C15] receiving a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate based at least in part on the one or more rules being satisfied; combining the first repetition of the downlink control message and the second repetition of the downlink control message; The method of C10, further comprising: [C16] determining that the first transmission time interval precedes the second transmission time interval based at least in part on determining whether the one or more rules are satisfied; The method of C10, further comprising: [C17] The method of C9, wherein a duration of the first search space set within a period of the monitoring pattern is the same as a duration of the second search space set within a period of the monitoring pattern. [C18] The method of C17, wherein the duration comprises the transmission time interval. [C19] The method of C17, wherein the duration comprises a set of consecutive transmission time intervals. [C20] verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern; determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that a first monitoring opportunity of the first search space set is linked with a second monitoring opportunity of the second search space set; determining, based at least in part on determining that the first monitoring opportunity is linked with the second monitoring opportunity, that a first downlink control channel candidate of the first group of downlink control channel candidates is linked with a second downlink control channel candidate of the second group of downlink control channel candidates; The method of C9, further comprising: [C21] receiving, based at least in part on the monitoring, a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate; combining the first repetition of the downlink control message and the second repetition of the downlink control message; The method of C20, further comprising: [C22] 1. An apparatus for wireless communication in a user equipment (UE), comprising: at least one processor; a memory coupled to the at least one processor; wherein the memory comprises: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a transmission time interval and a second monitoring pattern for a second search space set within the transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset; storing instructions executable by the at least one processor to cause the device to perform Device. [C23] The instruction: verifying that a number of monitoring opportunities of the first monitoring pattern is the same as a number of monitoring opportunities of the second monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification. 23. The apparatus of claim 22, further executable by the at least one processor to cause the apparatus to: [C24] The instruction: determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on a temporal ordering of the monitoring opportunities within the first search space set and the second search space set, respectively. 23. The apparatus of claim 22, further executable by the at least one processor to cause the apparatus to: [C25] The instruction: determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on an order of index values ​​associated with the monitoring opportunities in the first search space set and the second search space set, respectively. 23. The apparatus of claim 22, further executable by the at least one processor to cause the apparatus to: [C26] The instruction: The apparatus of C23, further executable by the at least one processor to cause the apparatus to determine that a first monitoring opportunity of the first search space set is linked with a second monitoring opportunity of the second search space set based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities. [C27] The instruction: determining, based at least in part on determining that the first monitoring occasion is linked with the second monitoring occasion, that a first downlink control channel candidate of the first group of downlink control channel candidates located within the first monitoring occasion is linked with a second downlink control channel candidate of the second group of downlink control channel candidates located within the second monitoring occasion. 27. The apparatus of claim 26, further executable by the at least one processor to cause the apparatus to: [C28] The instruction: receiving, based at least in part on the monitoring, a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate; combining the first repetition of the downlink control message and the second repetition of the downlink control message; 20. The apparatus of claim 19, further executable by the at least one processor to cause the apparatus to: [C29] The instruction: verifying that a duration of the first search space set within the period of the monitoring pattern is the same as a duration of the second search space set within the period of the monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification. 23. The apparatus of claim 22, further executable by the at least one processor to cause the apparatus to: [C30] 1. An apparatus for wireless communication in a user equipment (UE), comprising: at least one processor; a memory coupled to the at least one processor; wherein the memory comprises: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a first transmission time interval and a second monitoring pattern for a second search space set within a second transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first search space set and the second search space set having the same period but different offsets; storing instructions executable by the at least one processor to cause the device to perform Device. [C31] The instruction: comparing the first monitoring pattern with the second monitoring pattern to determine if a set of one or more rules is satisfied; determining, based at least in part on the one or more rules being satisfied, that a first downlink control channel candidate of the first group of downlink control channel candidates is linked with a second downlink control channel candidate of the second group of downlink control channel candidates; 30. The apparatus of claim 30, further executable by the at least one processor to cause the apparatus to: [C32] The instruction: determining that the one or more rules are satisfied based at least in part on a first slot number of the first transmission time interval, a first frame number associated with the first transmission time interval, a first offset of the first search space set, a second slot number of the second transmission time interval, a second frame number associated with the second transmission time interval, a second offset of the second search space set, or any combination thereof, wherein the second frame number multiplied by the number of slots per frame plus the second slot number of a slot is greater than the first frame number multiplied by the number of slots per frame plus the second slot number, which is greater than the second frame number multiplied by the number of frames per slot plus the second slot number minus the duration of the same period of the first search space set and the second search space set; 3. The apparatus of claim 2, further executable by the at least one processor to cause the apparatus to: [C33] The instruction: ordering the first search space set and the second search space set, wherein determining that the one or more rules are satisfied is based at least in part on ordering the first search space set and the second search space set. 3. The apparatus of claim 2, further executable by the at least one processor to cause the apparatus to: [C34] The instruction: receiving an indication from the base station that the first search space set is to be ordered before the second search space set. 34. The apparatus of claim 33, further executable by the at least one processor to cause the apparatus to: [C35] The instruction: identifying a first index for the first search space set and a second index for the second search space set, wherein comparing the first monitoring pattern to the second monitoring pattern comprises comparing the first index to the second index. 34. The apparatus of claim 33, further executable by the at least one processor to cause the apparatus to: [C36] The instruction: receiving a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate based at least in part on the one or more rules being satisfied; combining the first repetition of the downlink control message and the second repetition of the downlink control message; 3. The apparatus of claim 2, further executable by the at least one processor to cause the apparatus to: [C37] The instruction: determining that the first transmission time interval precedes the second transmission time interval based at least in part on determining whether the one or more rules are satisfied; 3. The apparatus of claim 2, further executable by the at least one processor to cause the apparatus to: [C38] The apparatus of C30, wherein a duration of the first search space set within a period of the monitoring pattern is the same as a duration of the second search space set within a period of the monitoring pattern. [C39] The apparatus of C38, wherein the duration comprises the transmission time interval. [C40] The apparatus of C38, comprising a set of transmission time intervals of contiguous duration. [C41] The instruction: verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern; determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that a first monitoring opportunity of the first search space set is linked with a second monitoring opportunity of the second search space set; determining, based at least in part on determining that the first monitoring opportunity is linked with the second monitoring opportunity, that a first downlink control channel candidate of the first group of downlink control channel candidates is linked with a second downlink control channel candidate of the second group of downlink control channel candidates; 30. The apparatus of claim 30, further executable by the at least one processor to cause the apparatus to: [C42] The instruction: receiving, based at least in part on the monitoring, a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate; combining the first repetition of the downlink control message and the second repetition of the downlink control message; The apparatus of C41, further executable by the at least one processor to cause the apparatus to perform [C43] 1. An apparatus for wireless communication in a user equipment (UE), comprising: means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a transmission time interval and a second monitoring pattern for a second search space set within the transmission time interval; means for receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; means for monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset; An apparatus comprising: [C44] 1. An apparatus for wireless communication in a user equipment (UE), comprising: means for receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a first transmission time interval and a second monitoring pattern for a second search space set within a second transmission time interval; means for receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; means for monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first search space set and the second search space set having the same period but different offsets; An apparatus comprising: [C45] 1. A non-transitory computer-readable medium storing code for wireless communication in a user equipment (UE), the code comprising: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a transmission time interval and a second monitoring pattern for a second search space set within the transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset; 10. A non-transitory computer-readable medium comprising instructions executable by at least one processor to perform: [C46] 1. A non-transitory computer-readable medium storing code for wireless communication in a user equipment (UE), the code comprising: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a first transmission time interval and a second monitoring pattern for a second search space set within a second transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for a downlink control channel iteration; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first search space set and the second search space set having the same period but different offsets; 10. A non-transitory computer-readable medium comprising instructions executable by at least one processor to perform:

Claims

1. 1. A method for wireless communication in a user equipment (UE), comprising: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a transmission time interval and a second monitoring pattern for a second search space set within the transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for downlink control channel iterations based at least in part on a number of monitoring opportunities of the first monitoring pattern being the same as a number of monitoring opportunities of the second monitoring pattern; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset; A method comprising:

2. verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification. The method of claim 1 further comprising:

3. determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on a temporal ordering of the monitoring opportunities within the first search space set and the second search space set, respectively. The method of claim 2 further comprising:

4. determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on an order of index values ​​associated with the monitoring opportunities in the first search space set and the second search space set, respectively. The method of claim 2 further comprising:

5. 3. The method of claim 2, further comprising determining that a first monitoring opportunity of the first search space set is linked with a second monitoring opportunity of the second search space set based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

6. determining, based at least in part on determining that the first monitoring occasion is linked with the second monitoring occasion, that a first downlink control channel candidate of the first group of downlink control channel candidates located within the first monitoring occasion is linked with a second downlink control channel candidate of the second group of downlink control channel candidates located within the second monitoring occasion. The method of claim 5 further comprising:

7. receiving, based at least in part on the monitoring, a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate; combining the first repetition of the downlink control message and the second repetition of the downlink control message; The method of claim 6 further comprising:

8. verifying that a duration of the first search space set within a period of the first monitoring pattern is the same as a duration of the second search space set within a period of the second monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification. The method of claim 1 further comprising:

9. 1. An apparatus for wireless communication in a user equipment (UE), comprising: at least one processor; a memory coupled to the at least one processor; wherein the memory comprises: receiving, from a base station, a configuration indicating a first monitoring pattern for a first search space set within a transmission time interval and a second monitoring pattern for a second search space set within the transmission time interval; receiving an indication from the base station that a first group of downlink control channel candidates in the first search space set are linked with a second group of downlink control channel candidates in the second search space set for downlink control channel iterations based at least in part on a number of monitoring opportunities of the first monitoring pattern being the same as a number of monitoring opportunities of the second monitoring pattern; monitoring the first group of downlink control channel candidates in the first search space set and the second group of downlink control channel candidates in the second search space set based at least in part on the first monitoring pattern and the second monitoring pattern having the same period and offset; storing instructions executable by the at least one processor to cause the device to perform Device.

10. The instruction: verifying that the number of monitoring opportunities of the first monitoring pattern is the same as the number of monitoring opportunities of the second monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification.

10. The apparatus of claim 9, further executable by the at least one processor to cause the apparatus to:

11. The instruction: determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on a temporal ordering of the monitoring opportunities within the first search space set and the second search space set, respectively.

11. The apparatus of claim 10, further executable by the at least one processor to cause the apparatus to:

12. The instruction: determining, based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities, that the monitoring opportunities from each of the first search space set and the second search space set are linked based at least in part on an order of index values ​​associated with the monitoring opportunities in the first search space set and the second search space set, respectively.

11. The apparatus of claim 10, further executable by the at least one processor to cause the apparatus to:

13. The instruction:

11. The apparatus of claim 10, further executable by the at least one processor to cause the apparatus to determine that a first monitoring opportunity of the first search space set is linked with a second monitoring opportunity of the second search space set based at least in part on verifying that the first monitoring pattern and the second monitoring pattern have the same number of monitoring opportunities.

14. The instruction: determining, based at least in part on determining that the first monitoring occasion is linked with the second monitoring occasion, that a first downlink control channel candidate of the first group of downlink control channel candidates located within the first monitoring occasion is linked with a second downlink control channel candidate of the second group of downlink control channel candidates located within the second monitoring occasion. and The instruction: receiving, based at least in part on the monitoring, a first iteration of a downlink control message on the first downlink control channel candidate and a second iteration of the downlink control message on the second downlink control channel candidate; combining the first repetition of the downlink control message and the second repetition of the downlink control message; 14. The apparatus of claim 13, further executable by the at least one processor to cause the apparatus to:

15. The instruction: verifying that a duration of the first search space set within a period of the first monitoring pattern is the same as a duration of the second search space set within a period of the second monitoring pattern, wherein monitoring the first group of downlink control channel candidates and the second group of downlink control channel candidates is further based at least in part on the verification.

10. The apparatus of claim 9, further executable by the at least one processor to cause the apparatus to:

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