Control resource set design for low-layer user equipment with reduced bandwidth

Abstract

Methods, systems, and apparatus for wireless communications are described. A low-layer user equipment (UE) with reduced bandwidth may receive a signal identifying a control resource set for the UE to monitor for control information scheduled for communications between the UE and a base station, the control resource set comprising a plurality of control channel elements organized across more than three symbols and comprising one or more first resource element groups mapped to a first monitoring opportunity and one or more second resource element groups mapped to a second monitoring opportunity. The UE may receive at least a first portion of the control information on the one or more first resource element groups during the first monitoring opportunity. The UE may receive at least a second portion of the control information on the one or more second resource element groups during the second monitoring opportunity. The UE may communicate with the base station based on the control information.

Description

[0001] Cross-references

[0002] This patent application claims the benefits of PCT application numbered PCT / CN2019 / 098568, entitled “CONTROL RESOURCE SET DESIGN FOR BANDWIDTH REDUCED LOW-TIER USEREQUIPMENT,” filed by WEI et al. on July 31, 2019, which is assigned to the assignee of this application. Technical Field

[0003] The following relates generally to wireless communications, and more particularly, to control resource set design for low-layer user equipment (UE) with reduced bandwidth. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support 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) systems, improved LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be 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 several base stations or network access nodes, each of which simultaneously supports communication for multiple communication devices (which may also be referred to as UEs). Summary of the Invention

[0005] The described techniques relate to improved methods, systems, devices, and apparatuses that support control resource set design for low-layer user equipment (UE) with reduced bandwidth. In general, the described techniques provide mechanisms to support control resource configuration supported by bandwidth-limited UEs by spreading at least a portion of the control information over more than three symbols and over multiple time slots. For example, a base station may configure or otherwise map control channel elements (CCEs) across more than three symbols. Each of the CCEs may include a resource element group (REG) (e.g., one or more first REGs or REG subgroups and one or more second REGs or REG subgroups). Some of the REGs may be mapped to a first monitoring opportunity (e.g., a first set of time resources in a first time slot), and other REGs may be mapped to a second monitoring opportunity (e.g., in the same or different time slot as the first monitoring opportunity). The base station may send or otherwise transmit a signal to the UE that identifies a control resource set for the UE to monitor for control information for scheduling communications with the base station. The base station may then transmit at least a portion (e.g., a first portion) of the control information on the REGs in the first monitoring opportunity, and then transmit another portion (e.g., a second portion) of the control information on the REGs in the second monitoring opportunity. The control information may be spread across more than two monitoring opportunities. Thus, the UE and the base station may perform wireless communication (e.g., uplink and / or downlink communication) based on the control information received in the REGs in the first monitoring opportunity and the second monitoring opportunity, respectively.

[0006] In another example, all control information in a single time slot can be transmitted in more than three symbols. For example, the base station can map CCEs across more than three symbols and send a signal to the UE that identifies a set of control resources for communication or otherwise configures the UE with a set of control resources for communication. The base station can send control information during a time slot and on more than three symbols, and the UE and the base station can then use the control information to perform wireless communication.

[0007] A method of wireless communication at a UE is described. The method may include: receiving a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a set of CCEs organized across more than three symbols and comprising one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; receiving at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; receiving at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicating with the base station based on the control information.

[0008] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to perform the following operations: receive a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a set of CCEs organized across more than three symbols and comprising one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; receive at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; receive at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicate with the base station based on the control information.

[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a set of CCEs organized across more than three symbols and including one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; receiving at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; receiving at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicating with the base station based on the control information.

[0010] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a set of CCEs organized across more than three symbols and including one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; receive at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; receive at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicate with the base station based on the control information.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, one or more first REGs include a first CCE and one or more second REGs include a second CCE, wherein the first CCE is different from the second CCE.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving at least a first portion of control information on one or more first REGs during a first monitoring occasion may include operations, features, units, or instructions for identifying one or more first REGs based on corresponding REG indices, which may be in ascending order based on symbol indices of the first monitoring occasion.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving at least a first portion of control information on one or more first REGs during a first monitoring opportunity may also include operations, features, units, or instructions for performing the following operations: identifying one or more first REGs based on corresponding REG indices, which may also be based on an ascending order of frequency resource block resource indices within the first monitoring opportunity.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving at least a first portion of control information on one or more first REGs during a first monitoring opportunity may also include operations, features, units, or instructions for identifying one or more first REGs based on corresponding REG indices, which may also be in ascending order based on indices of the first monitoring opportunity and a second monitoring opportunity.

[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving at least a first portion of control information on one or more first REGs during a first monitoring opportunity may also include operations, features, units, or instructions for performing the following operations: identifying one or more first REGs based on an interleaver pattern, which may also be based on the one or more first REGs of the first monitoring opportunity.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for deinterleaving one or more first REGs of a first monitoring occasion separately from one or more second REGs of a second monitoring occasion.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, deinterleaving one or more first REGs of a first monitoring occasion and one or more second REGs of a second monitoring occasion may include operations, features, units, or instructions for performing the following operations: identifying a cyclic shift applied to the interleaved one or more first REGs of the first monitoring occasion and one or more second REGs of the second monitoring occasion, wherein the cyclic shift may be based on at least one of the following: a first identifier for the one or more first REGs, or a second identifier for the one or more second REGs, or a time slot index for the first monitoring occasion, or a second index for the second monitoring occasion, or a combination thereof.

[0018] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying a timeslot index for a first monitoring opportunity; and identifying a first CCE index of a set of CCEs in a control resource set based on the timeslot index.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first portion of the control information may be received over two or more control portions of a first monitoring occasion, and a second portion of the control information may be received over two or more control portions of a second monitoring occasion.

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first monitoring opportunity is a same or different time slot as the second monitoring opportunity.

[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first monitoring opportunity is in a different time slot than the second monitoring opportunity. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for identifying timing for communication with the base station based on a time slot index of the first monitoring opportunity and an indication of the control information.

[0022] A method of wireless communication at a base station is described. The method may include mapping a set of CCEs across more than three symbols, wherein the set of CCEs includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; transmitting a signal identifying a set of control resources for a UE to monitor for control information scheduling communications between the UE and the base station, the set of control resources including the set of CCEs; transmitting at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; transmitting at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicating with the UE based on the control information.

[0023] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to perform the following operations: map a set of CCEs across more than three symbols, wherein the set of CCEs includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; send a signal identifying a set of control resources for a UE to monitor for control information scheduling communications between the UE and the base station, the set of control resources including the set of CCEs; send at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; send at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicate with the UE based on the control information.

[0024] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: mapping a set of CCEs across more than three symbols, wherein the set of CCEs includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; transmitting a signal identifying a set of control resources for a UE to monitor for control information scheduling communications between the UE and the base station, the set of control resources including the set of CCEs; transmitting at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; transmitting at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicating with the UE based on the control information.

[0025] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: map a set of CCEs across more than three symbols, wherein the set of CCEs includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; transmit a signal identifying a set of control resources for a UE to monitor for control information scheduling communications between the UE and the base station, the set of control resources including the set of CCEs; transmit at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity; transmit at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity; and communicate with the UE based on the control information.

[0026] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for performing the following operations: sending a first portion of control information on two or more control portions at a first monitoring occasion; and sending a second portion of control information on two or more control portions at a second monitoring occasion.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending at least a first portion of control information on one or more first REGs during a first monitoring opportunity may include operations, features, units, or instructions for mapping one or more first REGs using corresponding REG indices, which may also be in an ascending order based on symbol indices of the first monitoring opportunity.

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending at least a first portion of control information on one or more first REGs during a first monitoring opportunity may include operations, features, units, or instructions for mapping one or more first REGs using corresponding REG indices, which may also be based on an ascending order of frequency resource block resource indices within the first monitoring opportunity.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending at least a first portion of control information on one or more first REGs during a first monitoring opportunity may include operations, features, units, or instructions for mapping one or more first REGs using corresponding REG indices, which may also be in an ascending order based on the indices of the first monitoring opportunity and the second monitoring opportunity.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending at least a first portion of control information on one or more first REGs during a first monitoring opportunity may also include operations, features, units, or instructions for mapping the one or more first REGs using a corresponding interleaver pattern, which may also be based on the one or more first REGs within the first monitoring opportunity.

[0031] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for interleaving one or more first REGs of a first monitoring occasion separately from one or more second REGs of a second monitoring occasion.

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, interleaving one or more first REGs of a first monitoring occasion with the one or more second REGs of a second monitoring occasion may include operations, features, units, or instructions for applying a cyclic shift to the interleaved one or more first REGs of the first monitoring occasion and one or more second REGs of the second monitoring occasion, wherein the cyclic shift may be based on at least one of the following: a first identifier for the one or more first REGs, or a second identifier for the one or more second REGs, or a time slot index for the first monitoring occasion, or a second index for the second monitoring occasion, or a combination thereof.

[0033] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for selecting a time slot index for a first monitoring opportunity; and identifying a first CCE index of a set of CCEs in a control resource set based on the time slot index.

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, one or more first REGs include a first CCE and one or more second REGs include a second CCE, wherein the first CCE is different from the second CCE.

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first monitoring opportunity is a same or different time slot as the second monitoring opportunity.

[0036] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first monitoring opportunity is in a different time slot than the second monitoring opportunity. Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for identifying timing for communication with the base station based on a time slot index of the first monitoring opportunity and an indication of the control information. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1

[0014] An example of a system for wireless communication supporting control resource set design for low-layer user equipment (UE) with reduced bandwidth in accordance with aspects of the present disclosure is shown.

[0038] Figure 2

[0014] An example of a wireless communication system supporting control resource set design for reduced bandwidth low-tier UEs in accordance with aspects of the present disclosure is shown.

[0039] Figure 3 Examples of resource configurations supporting control resource set design for reduced bandwidth low-layer UEs according to aspects of the present disclosure are shown.

[0040] Figure 4 Examples of resource configurations supporting control resource set design for reduced bandwidth low-layer UEs according to aspects of the present disclosure are shown.

[0041] Figure 5 Examples of resource configurations supporting control resource set design for reduced bandwidth low-layer UEs according to aspects of the present disclosure are shown.

[0042] Figure 6 Examples of resource configurations supporting control resource set design for reduced bandwidth low-layer UEs according to aspects of the present disclosure are shown.

[0043] Figure 7 Examples of resource configurations supporting control resource set design for reduced bandwidth low-layer UEs according to aspects of the present disclosure are shown.

[0044] Figure 8 Examples of resource configurations supporting control resource set design for reduced bandwidth low-layer UEs according to aspects of the present disclosure are shown.

[0045] Figure 9 An example of a process for supporting control resource set design for reduced bandwidth low-layer UEs in accordance with aspects of the present disclosure is shown.

[0046] Figure 10 and Figure 11A block diagram of an apparatus supporting control resource set design for reduced bandwidth low-layer UEs is shown in accordance with aspects of the present disclosure.

[0047] Figure 12 A block diagram of a communications manager supporting control resource set design for reduced bandwidth low-tier UEs is shown in accordance with aspects of the present disclosure.

[0048] Figure 13 A diagram is shown of a system including devices supporting control resource set design for reduced bandwidth low-layer UEs in accordance with aspects of the present disclosure.

[0049] Figure 14 and Figure 15 A block diagram of an apparatus supporting control resource set design for reduced bandwidth low-layer UEs is shown in accordance with aspects of the present disclosure.

[0050] Figure 16 A block diagram of a communications manager supporting control resource set design for reduced bandwidth low-tier UEs is shown in accordance with aspects of the present disclosure.

[0051] Figure 17 A diagram is shown of a system including devices that support control resource set design for reduced bandwidth low-layer UEs in accordance with aspects of the present disclosure.

[0052] Figures 18 to 21 A flow chart illustrating a method of supporting control resource set design for reduced bandwidth low-layer UEs is shown in accordance with aspects of the present disclosure. DETAILED DESCRIPTION

[0053] A wireless communication system may use control information to schedule, control, or otherwise manage various aspects of wireless communication between a base station and a user equipment (UE). Control information may be transmitted in monitoring opportunities across symbols of a time slot. For example, control information may be transmitted in one or more control channel elements (CCEs), where each CCE includes one or more resource element groups (REGs), for example, each CCE may include six REGs. Broadly speaking, each REG may include one resource block (RB) during one symbol of a time slot. The control information transmitted in the REG may be transmitted in several channels, sub-bands, frequencies, etc. of a time slot. However, some wireless devices may be bandwidth-limited, such that the wireless device cannot monitor each channel, sub-band, frequency, etc. of the time slot in which the control information is being transmitted. Therefore, in some wireless communication systems, it may be difficult to schedule bandwidth-limited UEs for wireless communication.

[0054] Various aspects of the present disclosure are initially described in the context of wireless communication systems. In summary, the described techniques provide a mechanism to support control resource configuration supported by bandwidth-constrained UEs by spreading at least a portion of the control information across more than three symbols and across multiple time slots. For example, a base station may configure or otherwise map CCEs across more than three symbols. Each of the CCEs may include a REG. Some of the REGs may be mapped to a first monitoring opportunity and other REGs may be mapped to a second monitoring opportunity, for example, the CCEs may be mapped across multiple time slots. The base station may send or otherwise communicate a signal to the UE that identifies a set of control resources for the UE to monitor for control information scheduling communications with the base station. The base station may then send at least a portion of the control information (e.g., a first portion) on the REGs in the first monitoring opportunity, and then send another portion of the control information (e.g., a second portion) on the REGs in the second monitoring opportunity. The control information may be spread across more than two time slots. Thus, the UE and the base station may perform wireless communication (e.g., uplink and / or downlink communication) based on the control information received in the REGs in the first monitoring opportunity and the second monitoring opportunity, respectively.

[0055] In another example, all control information can be transmitted in more than three symbols in a time slot. For example, a base station can map CCEs across more than three symbols and send a signal to a UE that identifies a set of control resources for communication or otherwise configures the UE with a set of control resources for communication. The base station can send control information during a time slot and on more than three symbols, and the UE and the base station can then use the control information to perform wireless communication.

[0056] Aspects of the present disclosure are further illustrated and described with reference to apparatus diagrams, system diagrams, and flow diagrams related to control resource set design for reduced bandwidth low-layer UEs.

[0057] Figure 1 An example of a wireless communication system 100 that supports a control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 can be a long-term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some cases, the wireless communication system 100 can support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, or communication with low-cost and low-complexity devices.

[0058] The base station 105 can communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a wireless base station, an access point, a wireless transceiver, a Node B, an evolved Node B (eNB), a next-generation Node B, or a giga-Node B (any of which may be referred to as a gNB), a Home Node B, a Home evolved Node B, or other appropriate terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network devices (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

[0059] Each base station 105 may be associated with a particular geographic coverage area 110 in which it supports communications with various UEs 115. Each base station 105 may provide communication coverage for the respective geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105 or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, while uplink transmissions may also be referred to as reverse link transmissions.

[0060] The geographic coverage area 110 for a base station 105 can be divided into sectors, each of which constitutes a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macrocell, a small cell, a hotspot, or other types of cells, or various combinations thereof. In some examples, the base stations 105 can be mobile and, therefore, provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, and the overlapping geographic coverage areas 110 associated with different technologies can be supported by the same base station 105 or by different base stations 105. The wireless communication system 100 can include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network in which different types of base stations 105 provide coverage for respective geographic coverage areas 110.

[0061] The term "cell" refers to a logical communication entity used for communicating with a 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)) used to distinguish between adjacent cells operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or other protocol types) that may provide access to different types of devices. In some cases, the term "cell" may refer to a portion (e.g., a sector) of a geographic coverage area 110 on which the logical entity operates.

[0062] UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. UE 115 can also be referred to as a mobile device, wireless device, remote device, handheld device, or user equipment, or other appropriate terms, where "device" can also be referred to as a unit, station, terminal, or client. UE 115 can also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 can also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, which can be implemented in various items such as appliances, vehicles, meters, etc.

[0063] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows 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 and relay that information to a central server or application, which may utilize the information or present it to a human interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0064] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power conservation techniques for the UE 115 include entering a power-saving "deep sleep" mode when not engaged in active communications or operating over a limited bandwidth (e.g., in accordance with narrowband communications). In some cases, the UE 115 may be designed to support critical functions (e.g., mission-critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0065] In some cases, a UE 115 may also be able to communicate directly with other UEs 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more UEs 115 in a group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of a 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 cases, 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 all other UEs 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between the UEs 115 without involving the base station 105.

[0066] The base stations 105 can communicate with the core network 130 and with each other. For example, the base stations 105 can interface with the core network 130 via a backhaul link 132 (e.g., via an S1, N2, N3, or other interface). The base stations 105 can communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) on a backhaul link 134 (e.g., via an X2, Xn, or other interface).

[0067] 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), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the EPC. User IP packets may be transmitted through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to network operator IP services. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet switched (PS) streaming services.

[0068] At least some of the network devices (such as base station 105) may include a subcomponent such as an access network entity, which may be an example of an access node controller (ANC). Each access network entity may communicate with the UE 115 through several other access network transport entities (which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs)). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or consolidated into a single network device (e.g., base station 105).

[0069] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features. However, the waves can penetrate structures sufficiently for a macro cell to provide service to a UE 115 located indoors. Transmission using UHF waves can be associated with smaller antennas and shorter distances (e.g., less than 100 km) compared to transmission using the lower frequencies and longer wavelengths of the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0070] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region, which uses frequency bands from 3 GHz to 30 GHz (also known as centimeter bands). The SHF region includes frequency bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band, which may be opportunistically used by devices that may be able to tolerate interference from other users.

[0071] The wireless communication system 100 can also operate in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also referred to as the millimeter band). In some examples, the wireless communication system 100 can support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices can be even smaller and spaced closer than the UHF antennas. In some cases, this can facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may suffer from even greater atmospheric attenuation and shorter distances than SHF transmissions or UHF transmissions. The technology disclosed herein can be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may vary by country or regulatory agency.

[0072] In some cases, the wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ license assisted access (LAA), unlicensed LTE (LTE-U) radio access technology, or NR technology in an unlicensed frequency band (such as the 5 GHz ISM band). When operating in an unlicensed radio frequency spectrum band, wireless devices (such as base stations 105 and UEs 115) can employ a listen-before-talk (LBT) process to ensure that the frequency channel is idle before sending data. In some cases, operation in an unlicensed frequency band can be based on a carrier aggregation configuration in combination with component carriers operating in a licensed frequency band (e.g., LAA). Operations in an unlicensed spectrum can include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in an unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both.

[0073] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may employ a transmission scheme between a transmitting device (e.g., the base station 105) and a receiving device (e.g., the UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, the receiving device may receive multiple signals 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. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes 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.

[0074] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to form or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that signals propagating in a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to the signals transmitted via the antenna elements can include the transmitting device or the receiving device applying certain amplitude and phase offsets to the signals carried by each of the antenna elements associated with the device. The adjustments associated with each of the antenna elements can be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0075] In one example, the base station 105 can use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, the base station 105 can transmit some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions, where the some signals may include signals transmitted according to different sets of beamforming weights associated with different transmission directions. The transmissions in different beam directions can be used (e.g., by the base station 105 or a receiving device (such as the UE 115)) to identify the beam direction for subsequent transmission and / or reception by the base station 105.

[0076] Base station 105 may transmit some signals (such as data signals associated with a particular receiving device) in a single beam direction (e.g., a direction associated with a receiving device (such as UE 115)). In some examples, the beam direction associated with transmissions along the single beam direction may be determined at least in part based on signals transmitted in different beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signal it received having the highest signal quality or otherwise acceptable signal quality. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques to transmit signals multiple times in different directions (e.g., for identifying beam directions for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., for transmitting data to a receiving device).

[0077] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from the base station 105, a receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receive beams. For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing the received signal according to different antenna subarrays, by receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, or by processing the received signal according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device (e.g., when receiving a data signal) may use a single receive beam to receive along a single beam direction. A single receive beam can be aligned in a beam direction determined at least in part based on listening according to different receive beam directions (e.g., a beam direction determined at least in part to have the highest signal strength, the highest signal-to-noise ratio, or otherwise acceptable signal quality based at least in part on listening according to multiple beam directions).

[0078] In some cases, the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some cases, the antennas or antenna arrays associated with a base station 105 may be located at different geographic locations. A base station 105 may have an antenna array having several rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with a UE 115. Similarly, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0079] In some cases, the wireless communication system 100 can 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 can be IP-based. The radio link control (RLC) layer can perform packet segmentation and reassembly to communicate on logical channels. The medium access control (MAC) layer can perform priority processing and multiplexing of logical channels to transport channels. The MAC layer can also use hybrid automatic repeat request (HARQ) to provide retransmissions at the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration, and maintenance of the RRC connection (which supports radio bearers for user plane data) between the UE 115 and the base station 105 or the core network 130. At the physical layer, transport channels can be mapped to physical channels.

[0080] In some cases, the UE 115 and the base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood that data is correctly received on 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 under poor radio conditions (e.g., signal-to-noise conditions). In some cases, a wireless device may support same-slot HARQ feedback, wherein the device may provide HARQ feedback in a particular time slot for data received in previous symbols in that time slot. In other cases, the device may provide HARQ feedback in subsequent time slots or according to other time intervals.

[0081] The basic time unit (which may be referred to as T s =1 / 30,720,000 seconds). The time intervals of communication resources can be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period can be represented as T f =307,200T s. A radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. The subframe may also be divided into 2 time slots, each time slot having a duration of 0.5 ms, and each time slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix added in front of each symbol period). Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the minimum scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI) or in a component carrier selected to use sTTI).

[0082] In some wireless communication systems, a time slot can be further divided into multiple mini-slots containing one or more symbols. In some instances, a symbol of a mini-slot or a mini-slot can be the smallest scheduling unit. For example, the duration of each symbol can vary depending on the subcarrier spacing or the frequency band of operation. Furthermore, some wireless communication systems can implement time slot aggregation, in which multiple time slots or mini-slots are aggregated and used for communication between UE 115 and base station 105.

[0083] The term "carrier" refers to a collection of radio frequency spectrum resources with a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by the UE 115. A carrier may be downlink or uplink (e.g., in FDD mode) or may be configured to carry both downlink and uplink communications (e.g., in TDD mode). In some examples, the signal waveform transmitted on the carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0084] The organizational structure of a carrier can be different for different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR). For example, communications on a carrier can be organized according to TTIs or time slots, each of which can include user data and control information or signaling to support decoding of the user data. A carrier can also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate operations for the carrier. In some examples (e.g., in carrier aggregation configurations), a carrier can also have acquisition signaling or control signaling to coordinate operations for other carriers.

[0085] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier using, for example, time division multiplexing (TDM), frequency division multiplexing (FDM), or a hybrid TDM-FDM technique. In some examples, control information sent in a physical control channel may be distributed in a concatenated manner between different control regions (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces).

[0086] A carrier can be associated with a particular bandwidth of radio frequency spectrum, and in some examples, the carrier bandwidth can be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth can be one of several predetermined bandwidths of the carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 can be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 can be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0087] In a system employing MCM technology, a resource element may include 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). Therefore, the more resource elements a UE 115 receives and the higher the order of the modulation scheme, the higher the data rate for the UE 115 may be. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers), and the use of multiple spatial layers may further increase the data rate for communication with the UE 115.

[0088] A device of the wireless communication system 100 (e.g., a base station 105 or a UE 115) may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 and / or a UE 115 that supports simultaneous communication via carriers associated with more than one different carrier bandwidth.

[0089] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers (a feature that may be referred to as carrier aggregation or multi-carrier operation). Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with both FDD component carriers and TDD component carriers.

[0090] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more characteristics including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may also be configured for use in an unlicensed spectrum or a shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by a UE 115 that is unable to monitor the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0091] In some cases, an eCC may utilize a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of other component carriers. The shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a base station 105) may transmit wideband signals with a reduced symbol duration (e.g., 16.67 microseconds) (e.g., depending on a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0092] In addition, the wireless communication system 100 can be an NR system that can utilize any combination of licensed, shared, and unlicensed spectrum bands. The flexibility of eCC symbol duration and subcarrier spacing can allow the use of eCC across multiple spectrums. In some examples, NR shared spectrum can improve spectrum utilization and spectrum efficiency, especially through dynamic vertical (e.g., across the frequency domain) sharing and dynamic horizontal (e.g., across the time domain) sharing of resources.

[0093] UE 115 may receive a signal identifying a control resource set for UE 115 to monitor for control information scheduling communications between UE 115 and base station 105, the control resource set comprising a plurality of CCEs organized across more than three symbols and comprising one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity. UE 115 may receive at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity. UE 115 may receive at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity. UE 115 may communicate with base station 105 based on the control information.

[0094] The base station 105 may map multiple CCEs across more than three symbols, wherein the multiple CCEs include one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity. The base station 105 may send a signal identifying a control resource set for the UE 115 to monitor for control information scheduling communications between the UE 115 and the base station 105, the control resource set including the multiple CCEs. The base station 105 may send at least a first portion of the control information on the one or more first REGs during the first monitoring opportunity. The base station 105 may send at least a second portion of the control information on the one or more second REGs during the second monitoring opportunity. The base station 105 may communicate with the UE 115 based on the control information.

[0095] Figure 2 An example of a wireless communication system 200 that supports control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. The wireless communication system 200 can include a base station 205 and a UE 210, which can be examples of corresponding devices described herein.

[0096] The wireless communication system may use control information to monitor, configure, control, or otherwise manage various aspects of wireless communication between base stations 205 and 210. The control information may be transmitted on a control channel (e.g., a PDCCH) and may typically provide authorization (e.g., uplink authorization and / or downlink authorization), configuration information, etc. for such wireless communication and / or synchronization / reference signals associated with such communication. The control information may be transmitted in downlink control information (DCI) of a PDCCH configured to transmit relevant control information. In some wireless communication systems, the control information may be transmitted in the first, second, or third symbols of a time slot and using one or more of the channels, sub-bands, frequencies, etc. in the time slot.

[0097] Therefore, the UE 210 typically monitors for control information based on a configured control resource set (which may also be referred to as a CORESET), which may broadly include a set of time and / or frequency resources in which the control information is transmitted. For example, a control resource set in some wireless communication systems is defined by a set of frequency domain resources and / or time domain resources (e.g., N in the frequency domain). RB Resource blocks (RBs) and N in the time domain symb {1, 2, 3} symbols). The PDCCH may include one or more CCEs, and each CCE may include six REGs, where a REG is equal to one RB during one symbol.

[0098] In some wireless communication systems, the REGs within the control resource set may be numbered in ascending order in a time-first manner, starting with 0 for the first symbol and the lowest numbered RB in the control resource set. The CCE to REG mapping for the control resource set may be interleaved or non-interleaved and described by a REG bundle (e.g., one or more first REGs, second REGs, third REGs, etc.), which may be defined by a set of consecutive REGs. The REG bundle size may be configured by a higher layer (e.g., RRC, MAC, etc.) and may include two REGs, three REGs, or six REGs per bundle. For interleaved mapping, interleaving may include first writing the REG bundles to a rectangular interleaver by row and then reading my columns. The number of rows may be configured from {2, 3, 6}. In some aspects, a cyclic shift of the interleaving unit may be applied based on a configurable identifier (ID).

[0099] For example, non-interleaved CCE to REG mapping is performed on a control resource set of two symbols. Thus, all CCEs in the PDCCH are time- and frequency-localized. In another example, interleaved CCE to REG mapping of a control resource set in two symbols can use a REG bundling size set equal to the control resource set length, e.g., REG bundling of two REGs can be interleaved in the frequency domain within the control resource set resources. In another example, interleaved CCE to REG mapping of a control resource set into a symbol can use a REG bundling size set equal to six, e.g., REG bundling can be interleaved in the frequency domain within the control resource set resources.

[0100] However, some wireless devices may not be equipped or otherwise configured to support such technologies for transmitting control information. For example, NR lightweight wireless communication systems may include industrial sensors, wearable devices, etc., which may have reduced capabilities compared to other wireless devices. For example, such use cases may include, but are not limited to, eMMB, ultra-reliable low-latency communication (URLLC), massive machine-type communication (mMTC), etc., where mMTC and URLLC may be associated with new IoT use cases targeting vertical industries.

[0101] While the lowest-end IoT services can be met by narrowband (NB)-IoT and LTE-M, there are more high-end services that may be challenging, such as industrial sensors, cameras, wearables, and the like. These and other use cases may lead to the introduction of NR-based solutions with low-end UE capabilities compared to previous legacy protocols for eMBB, URLLC, and the like. That is, such low-end UEs may have a reduced number of antennas (e.g., one transmit / two receive, one transmit / one receive) for a smaller UE form factor, may have a reduced UE bandwidth compared to eMBB / URLLC, may have an ultra-low UE power level for battery conservation (e.g., 18 dBm peak power compared to 26 dBm), and so on. However, this may require effective coexistence with existing eMBB / URLLC UEs, as low-end (or low-layer) NR light UEs and high-end eMBB / URLLC UEs may be in the same serving cell.

[0102] For example, a low-layer UE (such as UE 210) may have very small bandwidth capabilities and / or a control resource set (e.g., CORESET #0) used to schedule a PDCCH (e.g., control information) of a system information block (SIB) one (SIB1) configured by a master information block / physical broadcast channel (MIB / PBCH) may have a maximum bandwidth of, for example, 17 MHz. For example, for control information using 96 RBs with a subcarrier spacing (SCS) of 15 kHz or 48 RBs with an SCS of 30 kHz, the control resource set (e.g., CORESET #0) bandwidth may be greater than the maximum bandwidth supported by the low-layer UE (e.g., 5 MHz, 10 MHz, etc.).

[0103] For UE-specific control resource sets, it is possible to configure the UE with a small bandwidth that is no greater than the maximum bandwidth supported by the UE. However, due to the constraint of a maximum of three symbols in duration (e.g., three symbols allocated for control information in a typical time slot), for PDCCH (e.g., control information), for example, aggregation level (AL) 16 (e.g., 16 CCEs) may not be supported. Example cases of CORESET to CCE mapping are shown in Table 1 and may include, but are not limited to:

[0104] Table 1.

[0105]

[0106]

[0107] Thus, various aspects of the described technology provide various mechanisms and schemes that support the design of control resource sets in a manner that allows such control information to be transmitted to low-layer UEs (such as UE 210). Broadly speaking, various aspects of the described technology increase the duration of a control resource set to more than three symbols. In one option, this can include all control resource set resources being in the same time slot. For example, the base station 205 can map multiple CCEs across more than three symbols of a time slot, where the multiple CCEs include one or more REGs mapped to the time slot. The base station 205 can send a signal (e.g., an RRC message or signaling) to the UE 210 that identifies a control resource set for the UE 210 to monitor for control information scheduling communications between the UE 210 and the base station 205. The control resource set may include multiple CCEs. The base station 205 then sends the control information to the UE 210 during the time slot and over more than three symbols. The control information can schedule communications between the base station 205 and the UE 210, which can be performed based on the control information (e.g., per / DCI in the PDCCH).

[0108] In another example, the resources of the control resource set may span multiple consecutive or non-consecutive (e.g., adjacent or non-adjacent) time slots, with the same time domain resource allocation in each time slot. For example, the resources within the control resource set may be divided into a number of subgroups of the same size (e.g., one or more first REGs, second REGs, third REGs, etc.), each subgroup having a duration of one symbol, two symbols, or three symbols, and mapped to the time slots using a one-to-one mapping in each time slot or using more than one REG subgroup mapping in each time slot.

[0109] Thus, the base station 205 may map multiple CCEs across more than three symbols, wherein the multiple CCEs include one or more first REGs mapped to the first monitoring opportunity and one or more second REGs mapped to the second monitoring opportunity (although more than two time slots may be used). The base station 205 may then send a signal to the UE 210 that indicates or otherwise identifies a control resource set including the multiple CCEs. The base station may send at least a portion (e.g., a first portion) of the control information during the first monitoring opportunity and in one or more first REGs, and another portion (e.g., a second portion) of the control information during the second monitoring opportunity and in one or more second REGs. The UE 210 may receive the control information transmitted in the first monitoring opportunity and the second monitoring opportunity and in the corresponding REGs, and communicate with the base station 205 using the control information.

[0110] Figure 3 An example of a resource configuration 300 supporting control resource set design for a low-layer UE with reduced bandwidth according to aspects of the present disclosure is shown. In some examples, the resource configuration 300 can implement aspects of the wireless communication system 100 and / or the wireless communication system 200. Aspects of the resource configuration 300 can be implemented by a base station and / or a UE, which can be examples of corresponding devices described herein. The resource configuration 300 shows an example of how a control resource set can be mapped to multiple time slots.

[0111] As discussed, the base station can map REGs from multiple CCEs across more than three symbols and across two or more time slots. In the example shown in resource configuration 300, the multiple CCEs are organized into multiple CCE subgroups. For example, the CCEs can be organized into four subgroups (e.g., subgroup #0, subgroup #1 to subgroup #N-1). Each subgroup can include one or more CCEs and can be mapped to one symbol, two symbols, or three symbols. It should be understood that there can be more or less than four CCE subgroups for a control resource set. Each CCE in the multiple CCEs can include corresponding one or more REGs. Although the REGs of a single CCE are included in the same time slot, the REGs are mapped to different time slots, such as Figure 3 In this context, a timeslot can generally refer to a full timeslot or a mini-slot.

[0112] In one example, resource configuration 300 can include a base station mapping one or more REGs of a first CCE subgroup (e.g., subgroup #0), a second CCE subgroup (e.g., subgroup #1), a third CCE subgroup (e.g., a middle subgroup), and a fourth CCE subgroup (e.g., subgroup #N-1) to a first mini-slot (e.g., slot i) of time slot 305-a, a second mini-slot of time slot 305-a, a first mini-slot (e.g., slot j) of time slot 305-b, and a second mini-slot of time slot 305-b, respectively. Each mini-slot of time slot 305 can include a control portion 310 (e.g., a PDCCH) and a data portion 315 (e.g., a PDSCH), wherein one or more REGs of CCEs are mapped to the control portion 310 (e.g., in a DCI within each control portion 310). Each control portion 310 can include a symbol duration of one symbol, two symbols, or three symbols.

[0113] In another example, resource configuration 300 may include a base station mapping one or more REGs of a first CCE subgroup (e.g., subgroup #0), a second CCE subgroup (e.g., subgroup #1), a third CCE subgroup (e.g., a middle subgroup), and a fourth CCE subgroup (e.g., subgroup #N-1) to a first monitoring opportunity 320-a (e.g., time slot m), a second monitoring opportunity 320-b (e.g., time slot n), a third time slot 320-c (e.g., time slot o), and a fourth time slot 320-d (e.g., time slot p), respectively. Each of the time slots 320 may include a control portion 325 (e.g., a PDCCH) and a data portion 330 (e.g., a PDSCH), wherein one or more REGs of CCEs are mapped to the control portion 325 (e.g., in a DCI within each control portion 325). Each control portion 325 may include a symbol duration of one symbol, two symbols, or three symbols.

[0114] The base station may signal a transmission indication to the UE, the indication identifying a control resource set for the UE 115 to monitor for control information used to perform communications between the UE and the base station. The control resource set may include multiple CCEs, where one or more REGs are mapped across multiple time slots. The base station may then transmit control information across one or more REGs mapped to CCEs in different time slots.

[0115] For example, the base station may send a first part of the control information on one or more REGs during the control portion 310-a of the first mini-slot of time slot 305-a, send a second part of the control information on one or more REGs during the control portion 310-b of the second mini-slot of time slot 305-a, send a third part of the control information on one or more REGs during the control portion 310-c of the first mini-slot of time slot 305-b, and send a fourth part of the control information on one or more REGs of the second mini-slot of time slot 305-b.

[0116] In another example, the base station may send a first portion of control information on one or more REGs during the control portion 325-a of time slot 320-a, send a second portion of control information on one or more REGs during the control portion 325-b of time slot 320-b, send a third portion of control information on one or more REGs during the control portion 325-c of time slot 320-c, and send a fourth portion of control information on one or more REGs during the control portion 325-d of time slot 320-d.

[0117] In general, a UE can use a control resource set to monitor control information from a base station that schedules wireless communications between the UE and the base station. For example, the control information may carry authorizations, configurations, and the like associated with wireless communications between the base station and the UE. The base station and the UE can use the control information to perform wireless communications (e.g., uplink and / or downlink communications).

[0118] Thus, the base station may spread the control information over three or more symbols and over multiple slots.In some aspects, the base station may spread the control information using only a subset of the available carriers in each slot, e.g., to support reduced bandwidth UEs or low tier UEs.

[0119] Figure 4An example of a resource configuration 400 that supports control resource set design for low-tier UEs with reduced bandwidth in accordance with aspects of the present disclosure is shown. In some examples, the resource configuration 400 can implement aspects of the wireless communication system 100 and / or the wireless communication system 200 and / or the resource configuration 300. Aspects of the resource configuration 400 can be implemented by a base station and / or a UE, which can be examples of corresponding devices described herein. Broadly speaking, the resource configuration 300 illustrates examples of aspects of REG numbering when a control resource set is spread across multiple slots (or mini-slots) in accordance with aspects of the described techniques.

[0120] As discussed, a base station can configure a control resource set for a UE to monitor for control information scheduling communications between the UE and the base station. The control resource set can include multiple CCEs 415 spanning at least four symbols, and wherein the multiple CCEs 415 include REGs 410 mapped to different time slots 405. The example resource configuration 400 shows an example with four CCEs 415, each CCE 415 including six REGs 410. That is, the example resource configuration 400 includes: one CCE 415 including REGs 410 {0, 1, 2, 3, 4, 5}, a second CCE 415 including REGs 410 {6, 7, 8, 9, 10, 11}, a third CCE 415 including REGs 410 {12, 13, 14, 15, 16, 17}, and a fourth CCE 415 including REGs 410 {18, 19, 20, 21, 22, 23}. In a broad sense, a REG number may include a REG index. For example, REG 410#7 of the second CCE 415 may also be referred to as REG 410 index 7.

[0121] In some wireless communication systems, when control information is spread over multiple time slots, REG numbering and / or interleaving may cause problems. For example (and as shown in the top example of resource configuration 400), REGs 410 within the CCE of the control resource set can be numbered in ascending order in a time-first manner across all (micro) time slots 405, and REG interleaving can be performed across all REGs 410 within the control resource set. The top example of resource configuration 400 shows an example of non-interleaved CCE to REG mapping of a control resource set of eight symbols using traditional REG numbering across four time slots 405 (e.g., time slot 405-a, time slot 405-b, time slot 405-c, and time slot 405-d). However, this may be problematic because the REGs 410 of the CCEs 415 are spread over multiple time slots, which means that the UE will wait until all time slots are received in order to decode the control information (e.g., PDCCH), which increases the PDCCH decoding delay.

[0122] For example, (referring again to the top example of the conventional REG numbering scheme), the UE will wait until it receives the first slot 405-a (e.g., slot 0), the second slot 405-b (e.g., slot 1), and the third slot 405-c (e.g., slot 2) before it can decode all REGs 410 of the first CCE 415. The UE will then have to wait until it has received the fourth slot 405-d (e.g., slot 3) before it can decode all REGs 410 of the remaining CCEs 415 in the control resource set. This will introduce significant PDCCH decoding delay.

[0123] Thus, aspects of the described techniques can provide novel methods for REG numbering when a control resource set is spread across multiple slots or mini-slots. Broadly speaking, REG numbering according to aspects of the described techniques can include first numbering REGs in increasing order of symbol index within a single mapping opportunity, second numbering REGs in increasing order of frequency RB resource index, third numbering REGs in increasing order of index for time multiplexing mapping opportunities within a slot 405, and fourth numbering REGs in increasing order of index for the slot 405, where a mapping opportunity is defined by a set of consecutive OFDM symbols within the slot 405 used for control resource set mapping.

[0124] Therefore, the base station may map one or more REGs 410 with corresponding REG indices that are in increasing order based on the symbol indices of the time slots 405. Then, the base station may map one or more REGs 410 with corresponding REG indices that are in increasing order based on the frequency RB resource indices within the time slots 405. Then, the base station may map one or more REGs 410 with corresponding REG indices that are in increasing order based on the indices for the plurality of time slots 405.

[0125] Therefore, and as shown in the bottom example of resource configuration 400, the base station can number REGs 410 according to these techniques to ensure that the UE can decode REGs 410 included in the first time slot 405-a (e.g., time slot 0) without having to wait for REGs 410 in subsequent time slots 405. That is, according to the example REG numbering scheme shown in the bottom example of resource configuration 400, the UE can decode all REGs 410 received in each time slot 405 without having to wait to receive REGs 410 in the next time slot 405. This can enable the UE to decode every portion of the control information received in each time slot 405, thereby improving PDCCH decoding latency.

[0126] The base station may transmit a first portion of the control information on one or more REGs 410 during a first time slot 405-a, transmit a second portion of the control information on one or more REGs 410 during a second time slot 405-b, transmit a third portion of the control information on one or more REGs 410 during a third time slot 405-c, and transmit a fourth portion of the control information on one or more REGs 410 during a fourth time slot 405-d. The UE may receive the portions of the control information spread across the plurality of time slots 405 and use the control information to perform wireless communications with the base station.

[0127] Figure 5 An example of a resource configuration 500 that supports control resource set design for low-layer UEs with reduced bandwidth in accordance with aspects of the present disclosure is shown. In some examples, resource configuration 500 can implement aspects of wireless communication system 100 and / or wireless communication system 200 and / or resource configuration 300 and / or resource configuration 400. Aspects of resource configuration 500 can be implemented by a base station and / or UE, which can be examples of corresponding devices described herein. Broadly speaking, resource configuration 500 illustrates examples of aspects of REG numbering when a control resource set is spread across multiple slots (or mini-slots) in accordance with aspects of the described techniques.

[0128] As discussed, the base station can configure a control resource set for the UE to monitor for control information scheduling communications between the UE and the base station. The control resource set may include a plurality of CCEs 515 spanning at least four symbols, and wherein the plurality of CCEs 515 include one or more REGs 510 mapped to different time slots 505. The example resource configuration 500 shows an example with four CCEs 515, each including six REGs 510.

[0129] In some wireless communication systems, REG numbering and / or interleaving may be problematic. For example (and as shown in the top example of resource configuration 500), REGs 510 within the CCEs of a control resource set may be numbered in increasing order in a time-first manner across all (micro)slots 505, and REG interleaving may be performed across all REGs 510 within the control resource set. That is, the top example of resource configuration 500 shows an example of an interleaved CCE-to-REG mapping (where the number of interleaving rows is set to two) for a control resource set that uses conventional REG numbering and interleaving to span four symbols distributed over two slots 505 (e.g., a first slot 505-a and a second slot 505-b). In this top example, no cyclic shift is applied, and the control resource set CCE mapping in the REG bundling set is discontinuous in both time and frequency. That is, a conventional example at the top of the resource configuration 500 includes: a first CCE 515 including REGs 510 {0, 1, 2, 3, 12, 13}, a second CCE 515 including REGs 510 {4, 5, 14, 15, 16, 17}, a third CCE 515 including REGs 510 {6, 7, 8, 9, 18, 19}, and a fourth CCE 515 including REGs 510 {10, 11, 20, 21, 22, 23}. In a broad sense, REG numbering can include REG indexing, for example, REG 510 #7 of the second CCE 515 can also be referred to as REG 510 index 7. However, this can be problematic because the REGs 510 of the CCE 515 are distributed across multiple slots 505 and the UE will have to wait to receive all slots 505 in order to decode the control information (eg, PDCCH), which increases the PDCCH decoding latency.

[0130] For example, (referring again to the top example of the conventional REG numbering scheme), the UE would have to wait until it receives both the first slot 505-a (e.g., slot 0) and the second slot 505-b (e.g., slot 1) before it could decode all REGs 510 of a CCE 515. This would introduce considerable PDCCH decoding delay.

[0131] Thus, aspects of the described techniques can provide novel methods for REG numbering when a control resource set is spread across multiple slots or mini-slots. Broadly speaking, REG numbering according to aspects of the described techniques can include first numbering REGs in increasing order of symbol index within a single mapping opportunity, second numbering REGs in increasing order of frequency RB resource index, third numbering REGs in increasing order of index for time multiplexing mapping opportunities within a slot 505, and fourth numbering REGs in increasing order of index for the slot 505, where a mapping opportunity is defined by a set of consecutive OFDM symbols within a slot 505 for control resource set mapping.

[0132] Therefore, the base station may map one or more REGs 510 with corresponding REG indices that are in increasing order based on the symbol indices of the slots 505. Then, the base station may map one or more REGs 510 with corresponding REG indices that are in increasing order based on the frequency RB resource indices within the slots 505. Then, the base station may map one or more REGs 510 with corresponding REG indices that are in increasing order based on the indices for the plurality of slots 505.

[0133] In terms of interleaving, the base station may map one or more first REGs using a corresponding interleaver pattern based on the REGs 510 within the time slot 505. For example, interleaving the control resource set may include applying interleaving separately for each REG 510 subgroup, such that all REGs 510 are interleaved in the frequency domain within the REG 510 subgroup and interleaving is not performed across REG 510 subgroups or time domain resources, e.g., such that interleaving produces limited diversity gain compared to interleaving within the control resource set. The interleaving pattern within the REG 510 subgroup may be based on a REG 510 bundling size configured from {2, 3, or 6}, and the interleaver unit size may be configured from {2, 3, or 6}.

[0134] Therefore, and as shown in the bottom example of resource configuration 500, the base station can number REGs 510 according to these techniques to ensure that the UE can decode REGs 510 included in the first time slot 505-a (e.g., time slot 0) without having to wait for REGs 510 in the second time slot 505-b (e.g., time slot 1). That is, according to the example REG numbering scheme shown in the bottom example of resource configuration 500, the UE can decode all REGs 510 received in each time slot 505 without having to wait to receive REGs 510 in the next time slot 505. This can enable the UE to decode each portion of the control information received in each time slot 505, thereby improving PDCCH decoding latency.

[0135] Furthermore, the base station may interleave the REGs 510 in the first time slot 505-a separately from the REGs 510 in the second time slot 505-b. Interleaving may be performed by first writing the REGs 510 by row and then reading the REGs 510 by column.

[0136] Thus, the example shown at the bottom of the resource configuration 500 provides an interleaved CCE-to-REG mapping for a control resource set, wherein the number of interleaving rows is set to two, and the control resource set spans four symbols and is distributed over two time slots using the REG 510 numbering and interleaving techniques described herein. No cyclic shift is applied, and the mapping of CCEs 515 in a bundled set of REGs 510 may only be interrupted in frequency. That is, the example at the bottom of the resource configuration 500 includes: a first CCE 515 comprising REGs 510 {0, 1, 6, 7, 2, 3}, a second CCE 515 comprising REGs 510 {8, 9, 4, 5, 10, 11}, a third CCE 515 comprising REGs 510 {12, 13, 18, 19, 14, 15}, and a fourth CCE 515 comprising REGs 510 {20, 21, 16, 17, 22, 23}.

[0137] The base station may transmit a first portion of the control information on one or more REGs 510 during a first time slot 505-a and a second portion of the control information on one or more REGs 510 during a second time slot 505-b. The UE may receive the portions of the control information spread across multiple time slots 505 and use the control information to perform wireless communications with the base station.

[0138] Figure 6An example of a resource configuration 600 supporting a control resource set design for a low-layer UE with reduced bandwidth according to aspects of the present disclosure is shown. In some examples, the resource configuration 600 can implement aspects of the wireless communication system 100 and / or the wireless communication system 200 and / or the resource configuration 300, the resource configuration 400, and / or the resource configuration 500. Aspects of the resource configuration 600 can be implemented by a base station and / or a UE, which can be examples of corresponding devices described herein. Broadly speaking, the resource configuration 600 illustrates examples of aspects of REG numbering when a control resource set is spread across multiple slots (or mini-slots) according to aspects of the described techniques.

[0139] As discussed, a base station can configure a control resource set for a UE to monitor for control information scheduling communications between the UE and the base station. The control resource set can include a plurality of CCEs 615 spanning at least four symbols, and wherein the plurality of CCEs 615 include one or more REGs 610 (e.g., a subgroup of REG bundles) mapped to different time slots 605. The example resource configuration 600 shows an example with four CCEs 615, each including six REGs 610.

[0140] In some wireless communication systems, REG numbering and / or interleaving may be problematic. For example (and as shown in the top example of resource configuration 600), REGs 610 within the CCEs of a control resource set may be numbered in increasing order in a time-first manner across all (micro)slots 605, and REG interleaving may be performed across all REGs 610 within the control resource set. That is, the top example of resource configuration 600 shows an example of an interleaved CCE-to-REG mapping (where the number of interleaving rows is set to two) for a control resource set that uses conventional REG numbering and interleaving to span four symbols distributed over two slots 605 (e.g., a first slot 605-a and a second slot 605-b). In this top example, no cyclic shift is applied, and the control resource set CCE mapping in the REG bundling set is discontinuous in both time and frequency. That is, a conventional example at the top of the resource configuration 600 includes: a first CCE 615 including REGs 610 {0, 1, 2, 3, 12, 13}, a second CCE 615 including REGs 610 {4, 5, 14, 15, 16, 17}, a third CCE 615 including REGs 610 {6, 7, 8, 9, 18, 19}, and a fourth CCE 615 including REGs 610 {10, 11, 20, 21, 22, 23}. In a broad sense, REG numbering can include REG indexing, for example, REG 610 #7 of the second CCE 615 can also be referred to as REG 610 index 7. However, this can be problematic because the REGs 610 of the CCE 615 are distributed across multiple slots 605 and the UE will have to wait to receive all slots 605 in order to decode the control information (eg, PDCCH), which increases the PDCCH decoding latency.

[0141] For example, (referring again to the top example of the conventional REG numbering scheme), the UE would have to wait until it receives both the first slot 605-a (e.g., slot 0) and the second slot 605-b (e.g., slot 1) before it could decode all REGs 610 of a CCE 615. This would introduce considerable PDCCH decoding delay.

[0142] Thus, aspects of the described techniques can provide novel methods for REG numbering when a control resource set is spread across multiple slots or mini-slots. Broadly speaking, REG numbering according to aspects of the described techniques can include first numbering the REGs 610 in increasing order of symbol index within a single mapping opportunity, second numbering the REGs 610 in increasing order of frequency RB resource index, third numbering the REGs 610 in increasing order of index for time multiplexing mapping opportunities within a slot 605, and fourth numbering the REGs 610 in increasing order of index for the slot 605, where a mapping opportunity is defined by a set of consecutive OFDM symbols within the slot 605 used for control resource set mapping.

[0143] Therefore, the base station may map one or more REGs 610 with corresponding REG indices based on the increasing order of symbol indices of the slots 605. Then, the base station may map one or more REGs 610 with corresponding REG indices based on the increasing order of frequency RB resource indices within the slots 605. Then, the base station may map one or more REGs 610 with corresponding REG indices based on the increasing order of indices for the plurality of slots 605.

[0144] In terms of interleaving, the base station may map one or more first REGs using a corresponding interleaver pattern based on the REGs 610 within the time slot 605. For example, interleaving the control resource set may include applying interleaving separately to each REG 610 subgroup, such that all REGs 610 within the REG 610 subgroup are interleaved in the frequency domain and interleaving is not performed across REG 610 subgroups or time domain resources, e.g., such that interleaving produces limited diversity gain compared to interleaving within the control resource set. The interleaving pattern within the REG 610 subgroup may be based on a REG 610 bundling size configured from {2, 3, or 6}, and the interleaver unit size may be configured from {2, 3, or 6}. That is, the base station may interleave the REGs 610 in the first time slot 605-a separately from the REGs 610 in the second time slot 605-b. Interleaving may be performed by first writing the REGs 610 by row and then reading the REGs 610 by column.

[0145] In terms of cyclic shifts, the base station can apply a cyclic shift to the interleaved REGs 610 of the first time slot 605-a and the interleaved REGs 610 of the second time slot 605-b, the cyclic shift being based on an identifier (ID) of the corresponding REG 610 and / or a slot index for the first time slot 605-a and the second time slot 605-b. That is, the bottom example of resource configuration 600 shows an example interleaved CCE-to-REG mapping with two interleaved rows for a control resource set of four symbols distributed across two time slots 605, the control resource set using the REG numbering and interleaving scheme described herein. The bottom example of resource configuration 600 can be interleaved using a time slot-specific cyclic shift, and the CCE 615 mapping in the REG 610 bundled set can be interrupted only in frequency.

[0146] Therefore, and as shown in the bottom example of resource configuration 600, the base station can number, interleave, and cyclically shift the REGs 610 according to these techniques to ensure that the UE can decode the REGs 610 included in the first time slot 605-a (e.g., time slot 0) without having to wait for the REGs 610 in the second time slot 605-b (e.g., time slot 1). That is, according to the example REG numbering scheme shown in the bottom example of resource configuration 600, the UE is able to decode all REGs 610 received in each time slot 605 without having to wait to receive the REGs 610 in the next time slot 605. That is, the example at the bottom of the resource configuration 600 includes: a first CCE 615 including REGs 610 {0, 1, 6, 7, 2, 3}, a second CCE 615 including REGs 610 {8, 9, 4, 5, 10, 11}, a third CCE 615 including REGs 610 {14, 15, 20, 21, 16, 17}, and a fourth CCE 615 including REGs 610 {22, 23, 12, 13, 18, 19}. This can enable the UE to decode each part of the control information received in each slot 605, thereby improving PDCCH decoding latency.

[0147] That is, the example shown at the bottom of resource configuration 600 provides an interleaved CCE-to-REG mapping for a control resource set, where the number of interleaving rows is set to two, spread over four symbols and distributed over two slots using the REG 610 numbering, interleaving, and cyclic shifting techniques described herein. Cyclic shifting is applied on a per-slot 605 basis, and the mapping of CCEs 615 within a bundled set of REGs 610 may be interrupted only in frequency. The cyclic shift of the interleaving unit can be based on both a configurable identifier and a slot 610 (or mini-slot) index, e.g., to support REG 610 subgroup-specific cyclic shifts for interleaving.

[0148] The base station may transmit a first portion of the control information on one or more REGs 610 during a first time slot 605-a and a second portion of the control information on one or more REGs 610 during a second time slot 605-b. The UE may receive the portions of the control information spread across multiple time slots 605 and use the control information to perform wireless communications with the base station.

[0149] Figure 7 An example of a resource configuration 700 supporting a control resource set design for a low-layer UE with reduced bandwidth according to aspects of the present disclosure is shown. In some examples, the resource configuration 700 can implement aspects of the wireless communication system 100 and / or the wireless communication system 200 and / or the resource configuration 300, the resource configuration 400, the resource configuration 500, and / or the resource configuration 600. Aspects of the resource configuration 700 can be implemented by a base station and / or a UE, which can be examples of corresponding devices described herein. Broadly speaking, the resource configuration 700 illustrates an example of aspects of TDM of a conventional wideband control resource set (e.g., CORESET#0) and a narrowband control resource set (e.g., CORESET#0) in different time slots according to aspects of the described techniques.

[0150] More specifically, resource configuration 700 illustrates an example of TDM of conventional wideband control resource sets and narrowband control resource sets across different time slots 705 within a 20 ms period for a total of four SSBs (assuming a 15 kHz subcarrier spacing (SCS) for SSBs and PDCCHs and one search space within time slot 705). For example, a control resource set (e.g., CORESET #0) may be spread across the first two symbols 710 of each time slot 705 (e.g., in each of time slots 0-19), where 20 time slots 705 cover 20 ms. In some aspects, control information mapped to the control resource sets spread across the 20 time slots 705 may include or carry information scheduling communications between a UE and a base station (e.g., scheduling SSB transmissions for SSBs #0-#3). The base station may transmit portions of the control information across each time slot 705, which may then be used for wireless communications between the UE and the base station.

[0151] [ Figure 8An example of a resource configuration 800 supporting a control resource set design for a low-layer UE with reduced bandwidth according to aspects of the present disclosure is shown. In some examples, the resource configuration 800 can implement aspects of the wireless communication system 100 and / or the wireless communication system 200 and / or the resource configuration 300, the resource configuration 400, the resource configuration 500, the resource configuration 600, and / or the resource configuration 700. Aspects of the resource configuration 800 can be implemented by a base station and / or a UE, which can be examples of corresponding devices described herein. Broadly speaking, the resource configuration 800 shows an example of CCEs spread across four time slots 805, where each time slot 805 has a corresponding control portion 810 and a data portion 815.

[0152] The base station may map the CCE(s) of the control resource set to the first time slot 805-a, the second time slot 805-b, the third time slot 805-c, and the fourth time slot 805-d. Thus, the base station may transmit a first portion of control information in a first control portion 810-a (e.g., DCI) of the first time slot 805-a, a second portion of control information in a second control portion 810-b of the second time slot 805-b, a third portion of control information in a third control portion 810-c of the third time slot 805-c, and a fourth portion of control information in a fourth control portion 810-d of the fourth time slot 805-d. The control information may be carried in the DCI of the corresponding control portion 810.

[0153] Some wireless communication systems may include a K0 value indicated in the DCI that signals a delay between a scheduled PDCCH (e.g., the control portion 810 of a slot 805) and a scheduled PDSCH (e.g., the data portion 815 (PDSCH) scheduled by the DCI). Furthermore, some wireless communication systems may support a dynamic PDSCH (e.g., data portion 815) scheduling delay, e.g., the start of the PDSCH transmission is K0 slots 805 after the slot 805 with the scheduling DCI, where K0 is indicated in the DCI. However, this may present problems when control information is spread across multiple slots 805. For example, when control information is spread across multiple slots 805, this may create issues regarding which DCI in which slot 805 is used to schedule the corresponding PDSCH (e.g., data portion 815).

[0154] Thus, aspects of the described technology can include a base station indicating timing for communication with a UE based on the timing of a first time slot 805-a (e.g., time slot 0) and a duration indication in control information and / or indicating timing for communication with a UE based on the timing of a second time slot 805-b.

[0155] That is, for control resource sets spread across multiple time slots 805, the CCEs of the PDCCH (e.g., DCI in the control portion 810) may be distributed across multiple time slots 805. Therefore, the PDCCH time slot used to determine the PDSCH transmission timing may be the last time slot 805 in which the PDCCH is scheduled (e.g., the time slot 805 with the highest CCE index of the PDCCH), or the first monitoring opportunity for the scheduled PDCCH plus the duration of the PDCCH indicated in the DCI may be used.

[0156] For the option of scheduling a PDCCH in the first time slot 805 (e.g., time slot 805-a) plus the duration of the PDCCH explicitly indicated in the DCI, this can include a first portion of the control information in the control portion 810-a of the first time slot 805-a indicating K0=0 and the duration of the PDCCH (e.g., an indication of the number of time slots 805 over which the control resource set is distributed) spanning four time slots (e.g., time slot 805-a, time slot 805-b, time slot 805-c, and time slot 805-d). Thus, the next time slot 805 (e.g., time slot 805-e) following the receipt of the last time slot carrying control information (based on K0=0) can include communications scheduled by the control information (e.g., PDSCH).

[0157] For the option of determining the timing of PDSCH transmissions for the last time slot 805 (e.g., the fourth time slot 805-d) that schedules the PDCCH, this may include indicating the timing for communications with the UE based on the timing of the fourth time slot 805-d. For example, a portion of the control information in the fourth time slot 805-d may indicate that K0=0 for communications (e.g., PDSCH) occurring in the data portion 815-d of the fourth time slot 805-d and may indicate that K0=1 for communications occurring in the data portion 815-e of the fifth time slot 805-e.

[0158] For this option, there may be ambiguity between different aggregation levels (ALs). For example, there may be ambiguity between AL8 and AL16 PDCCH candidates (for example, this is because the lowest decoding rate for polarity coding of PDCCH is 1 / 8, and if the decoding rate of PDCCH with AL8 is lower than 1 / 8), the UE may not be able to distinguish between AL8 and AL16 because AL16 further adds another repetition based on the circular buffer, and the first eight CCEs and the last eight CCEs (in AL16) are the same. Therefore, if the detected PDCCH scheduling PDSCH is with AL8, the UE may assume that the starting time slot of the PDSCH may be the last time slot based on the AL16 PDCCH candidate.

[0159] More specifically, according to some wireless communication systems, when a UE monitors a PDCCH in a UE-specific search space, the CCE corresponding to a PDCCH candidate (given as m) of AL (given as L) is given by:

[0160]

[0161] Among them, Y k is a function of the slot index used to determine the starting CCE index of the PDCCH, i = 0, ..., L-1, and m = 0, ..., M (L) -1, where M (L) N is the number of PDCCH candidates to be monitored for ALL. CCE,p is the total number of CCEs in the control resource set p, and n Cl This is the carrier indicator field.

[0162] When the control resource set is mapped to multiple time slots 805, which time slot index is used to determine Y k The value of (eg, the starting CCE index of the PDCCH) is ambiguous. However, aspects of the described technology can use the first monitoring opportunity of the control resource set to determine the starting CCE index of the PDCCH candidate (eg, Y k ). The base station may select a time slot index for the first monitoring opportunity and identify a first CCE index of a CCE set in a control resource set based on the time slot index. The base station may identify a first time resource within a first time slot 805-a based on the first REG to send a first part of the control information and send a second part of the control information during a second time resource in a second time slot 805-b based on the time resource within the first time slot 805-a. The time resources in the first time slot 805-a and the second time slot 805-b may be the same or may be different. Thus, the base station may send a portion of the control information in a control resource set spanning four time slots 805, where the time slot index for the first time slot 805-a of the control resource set is used to determine the timing for communication between the base station and the UE.

[0163] Figure 9 An example of a process 900 for supporting control resource set design for a low-layer UE with reduced bandwidth according to aspects of the present disclosure is shown. In some examples, process 900 can implement aspects of wireless communication system 100 and / or wireless communication system 200 and / or resource configuration 300, resource configuration 400, resource configuration 500, resource configuration 600, resource configuration 700, resource configuration 800, and / or resource configuration 900. Process 900 can be implemented by base station 905 and / or UE 910, which can be examples of corresponding devices described herein.

[0164] At 915, the base station 905 may map a plurality of CCEs across more than three symbols, wherein the plurality of CCEs includes one or more first REGs (e.g., a first REG subgroup) mapped to a first monitoring opportunity and one or more second REGs (e.g., a second REG subgroup) mapped to a second monitoring opportunity. In some aspects, the first monitoring opportunity and the second monitoring opportunity may be consecutive or non-consecutive time slots, the same time slot or different time slots, mini-slots or full-slots, etc.

[0165] At 920, the base station 905 may transmit (and the UE 910 may receive) a signal identifying a set of control resources for the UE 910 to monitor for control information scheduling communications between the UE 910 and the base station 905. In some aspects, the set of control resources may include a plurality of CCEs. In some aspects, the signal may be a higher layer signal (e.g., RRC, MAC, etc.).

[0166] At 925 and during a first monitoring occasion, the base station 905 may send (and the UE 910 may receive) at least a first portion of control information on one or more first REGs.

[0167] In some aspects, this can include the base station 905 sending (and the UE 910 receiving) the first portion of the control information over two or more control portions of the first monitoring opportunity (e.g., in two or more mini-slots within the first monitoring opportunity). Accordingly, the base station 905 can send (and the UE 910 can receive) the second portion of the control information over two or more control portions of the second monitoring opportunity (e.g., in two or more mini-slots within the second monitoring opportunity).

[0168] In some aspects, this may include the base station 905 mapping the one or more first REGs with corresponding REG indices, the corresponding REG indices being further based on the increasing order of symbol indices within the first monitoring opportunity. The base station 905 may map the one or more first REGs with corresponding REG indices being further based on the increasing order of frequency RB resource indices within the first monitoring opportunity. The base station 905 may map the one or more first REGs with corresponding REG indices being further based on the increasing order of indices of a time-multiplexed control portion for the first monitoring opportunity. The base station 905 may map the one or more REGs with corresponding REG indices being further based on the increasing order of indices of the first monitoring opportunity and the second monitoring opportunity.

[0169] In some aspects, the base station 905 may map the one or more first REGs using a corresponding interleaver pattern based on the one or more first REGs within the first monitoring opportunity. The base station 905 may interleave the one or more first REGs of the first monitoring opportunity separately from the one or more second REGs of the second monitoring opportunity. This may include the base station 905 applying a cyclic shift to the interleaved one or more first REGs of the first monitoring opportunity and the interleaved one or more second REGs of the second monitoring opportunity. The cyclic shift may be based on a first identifier for the one or more first REGs, or a second identifier for the one or more second REGs, or a slot index for the first monitoring opportunity, and / or a second index for the second monitoring opportunity.

[0170] In some aspects, this may include the base station 905 indicating timing for communications with the UE 910 based on the timing of the first monitoring occasion and the duration indication in the control information.

[0171] In some aspects, one or more first REGs include a first CCE and one or more second REGs include a second CCE, wherein the first CCE is different from the second CCE.

[0172] At 930 and during the second monitoring opportunity, the base station 905 may transmit (and the UE 910 may receive) at least a second portion of the control information on one or more second REGs. In some aspects, this may include the base station 905 indicating timing for communication with the UE 910 based on the timing of the second monitoring opportunity.

[0173] In some aspects, this may include the base station 905 identifying a slot index for the first monitoring occasion and identifying a first CCE index for a set of CCEs in the control resource set based on the slot index.

[0174] In some aspects, one or more first REGs include a first CCE and one or more second REGs include a second CCE, where the first CCE is different from the second CCE.

[0175] At 935, the base station 105 and the UE 910 may communicate based on the control information.

[0176] Figure 10A block diagram 1000 of a device 1005 supporting control resource set design for a low-layer UE with reduced bandwidth according to aspects of the present disclosure is shown. The device 1005 can be an example of aspects of the UE 115 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1020. The device 1005 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0177] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to control resource set design for low-layer UEs with reduced bandwidth, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be a reference Figure 13 Examples of various aspects of the transceiver 1320 are described. The receiver 1010 may utilize a single antenna or a group of antennas.

[0178] The communication manager 1015 can perform the following operations: receive a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, the control resource set including a CCE set organized across more than three symbols and including one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; receive at least a first part of the control information on the one or more first REGs during the first monitoring opportunity; receive at least a second part of the control information on the one or more second REGs during the second monitoring opportunity; and communicate with the base station based on the control information.

[0179] The communication manager 1015 or its subcomponents may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1015 or its subcomponents may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), 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 in this disclosure.

[0180] The communication manager 1015 or its subcomponents can be physically located in various locations, including being distributed so that one or more physical components implement portions of the functionality at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents can be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents can be combined with one or more other hardware components (including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0181] The transmitter 1020 can transmit signals generated by other components of the device 1005. In some examples, the transmitter 1020 can be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1020 can be a reference Figure 13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1020 may utilize a single antenna or a group of antennas.

[0182] Figure 11 A block diagram 1100 of a device 1105 supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The device 1105 can be an example of aspects of the device 1005 or UE 115 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1135. The device 1105 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0183] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to control resource set design for low-layer UEs with reduced bandwidth). The information may be communicated to other components of the device 1105. The receiver 1110 may be a reference Figure 13 Examples of various aspects of the transceiver 1320 are described. The receiver 1110 may utilize a single antenna or a group of antennas.

[0184] The communication manager 1115 may be an example of aspects of the communication manager 1015 as described herein. The communication manager 1115 may include a control resource indication manager 1120, a control information reception manager 1125, and a communication control manager 1130. The communication manager 1115 may be an example of aspects of the communication manager 1310 as described herein.

[0185] The control resource indication manager 1120 can receive a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, wherein the control resource set includes a CCE set organized across more than three symbols and includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity.

[0186] The control information reception manager 1125 may receive at least a first portion of the control information on one or more first REGs during a first monitoring opportunity and receive at least a second portion of the control information on one or more second REGs during a second monitoring opportunity.

[0187] The communication control manager 1130 may communicate with the base station according to the control information.

[0188] The transmitter 1135 can transmit signals generated by other components of the device 1105. In some examples, the transmitter 1135 can be co-located with the receiver 1110 in a transceiver module. For example, the transmitter 1135 can be a reference Figure 13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1135 may utilize a single antenna or a group of antennas.

[0189] Figure 12 A block diagram 1200 is shown of a communication manager 1205 that supports control resource set design for low-layer UEs with reduced bandwidth in accordance with aspects of the present disclosure. The communication manager 1205 can be an example of aspects of the communication manager 1015, the communication manager 1115, or the communication manager 1310 described herein. The communication manager 1205 can include a control resource indication manager 1210, a control information reception manager 1215, a communication control manager 1220, a time resource manager 1225, a REG number manager 1230, a duration indication manager 1235, and a slot index manager 1240. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0190] The control resource indication manager 1210 can receive a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, wherein the control resource set includes a CCE set organized across more than three symbols and includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity.

[0191] In some examples, the control resource indication manager 1210 can receive a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and a base station, wherein the control resource set includes a CCE set organized across more than three symbols in a time slot, each CCE in the CCE set including one or more REGs.

[0192] Control information reception manager 1215 may receive at least a first portion of control information on one or more first REGs during a first monitoring opportunity. In some examples, control information reception manager 1215 may receive at least a second portion of control information on one or more second REGs during a second monitoring opportunity. In some examples, control information reception manager 1215 may receive control information on more than three symbols of a time slot during a time slot. In some cases, the first monitoring opportunity is the same or a different time slot as the second monitoring opportunity. In some cases, the first monitoring opportunity is in a different time slot than the second monitoring opportunity, and control information reception manager 1215 may identify timing for communication with the base station based on the time slot index of the first monitoring opportunity and the indication of the control information.

[0193] The communication control manager 1220 can communicate with the base station according to the control information. In some examples, the communication control manager 1220 can communicate with the base station according to the control information.

[0194] In some cases, one or more first REGs include a first CCE and one or more second REGs include a second CCE, where the first CCE is different from the second CCE.

[0195] The REG number manager 1230 may identify one or more first REGs based on corresponding REG indices, which are based on an increasing order of symbol indices for the first monitoring opportunity. In some examples, the REG number manager 1230 may identify one or more first REGs based on corresponding REG indices, which are further based on an increasing order of frequency resource block resource indices within the first monitoring opportunity.

[0196] In some examples, REG number manager 1230 can identify one or more first REGs based on corresponding REG indexes, which are further based on the increasing order of the indexes of the first monitoring opportunity and the second monitoring opportunity. In some examples, REG number manager 1230 can identify one or more first REGs based on an interleaver pattern, which is further based on the one or more first REGs within the first monitoring opportunity.

[0197] In some examples, the REG number manager 1230 may deinterleave the one or more first REGs of the first monitoring occasion separately from the one or more second REGs of the second monitoring occasion. In some examples, the REG number manager 1230 may identify a cyclic shift to apply to the interleaved one or more first REGs of the first monitoring occasion and the one or more second REGs of the second monitoring occasion, wherein the cyclic shift is based on at least one of the following: a first identifier for the one or more first REGs, or a second identifier for the one or more second REGs, or a slot index for the first monitoring occasion, or a second index for the second monitoring occasion, or a combination thereof.

[0198] The slot index manager 1240 may identify a slot index for the first monitoring occasion. In some examples, the slot index manager 1240 may identify a first CCE index of a set of CCEs in a control resource set based on the slot index.

[0199] Figure 13 A diagram of a system 1300 including a device 1305 supporting a control resource set design for a low-layer UE with reduced bandwidth in accordance with various aspects of the present disclosure is shown. The device 1305 may be an example of, or include a component of, a device 1005, a device 1105, or a UE 115 as described herein. The device 1305 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1310, an I / O controller 1315, a transceiver 1320, an antenna 1325, a memory 1330, and a processor 1340. These components may communicate electronically via one or more buses (e.g., bus 1345).

[0200] The communication manager 1310 can perform the following operations: receive a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, the control resource set including a CCE set organized across more than three symbols and including one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; receive at least a first part of the control information on the one or more first REGs during the first monitoring opportunity; receive at least a second part of the control information on the one or more second REGs during the second monitoring opportunity; and communicate with the base station based on the control information.

[0201] I / O controller 1315 can manage input and output signals for device 1305. I / O controller 1315 can also manage peripheral devices that are not integrated into device 1305. In some cases, I / O controller 1315 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1315 can utilize a computer such as 1305. In some cases, the I / O controller 1315 may be implemented as part of the processor. In some cases, a user may interact with the device 1305 via the I / O controller 1315 or via hardware components controlled by the I / O controller 1315.

[0202] The transceiver 1320 can communicate bidirectionally via one or more antennas, wired links, or wireless links as described above. For example, the transceiver 1320 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1320 can also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and demodulating packets received from the antenna.

[0203] In some cases, a wireless device may include a single antenna 1325. However, in some cases, the device may have more than one antenna 1325, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0204] Memory 1330 may include RAM and ROM. Memory 1330 may store computer-readable, computer-executable code 1335, which includes instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1330 may contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0205] The processor 1340 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1340 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 1340. The processor 1340 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1330) to cause the device 1305 to perform various functions (e.g., functions or tasks supporting control resource set design for low-layer UEs with reduced bandwidth).

[0206] The code 1335 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1335 may be stored in a non-transitory computer-readable medium (such as system memory or other types of memory). In some cases, the code 1335 may not be directly executable by the processor 1340, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0207] Figure 14 A block diagram 1400 of a device 1405 supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The device 1405 can be an example of aspects of the base station 105 as described herein. The device 1405 may include a receiver 1410, a communication manager 1415, and a transmitter 1420. The device 1405 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0208] The receiver 1410 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to control resource set design for low-layer UEs with reduced bandwidth, etc.). The information may be passed to other components of the device 1405. The receiver 1410 may be a reference Figure 17 Examples of various aspects of the transceiver 1720 are described. The receiver 1410 may utilize a single antenna or a group of antennas.

[0209] The communication manager 1415 can perform the following operations: map a CCE set across more than three symbols, wherein the CCE set includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; send a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, the control resource set including the CCE set; send at least a first part of the control information on one or more first REGs during the first monitoring opportunity; send at least a second part of the control information on one or more second REGs during the second monitoring opportunity; and communicate with the UE based on the control information.

[0210] The communication manager 1415 or its subcomponents may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1415 or its subcomponents may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), 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 in this disclosure.

[0211] The communication manager 1415 or its subcomponents can be physically located in various locations, including being distributed so that one or more physical components implement parts of the functions in different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1415 or its subcomponents can be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1415 or its subcomponents can be combined with one or more other hardware components (including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0212] The transmitter 1420 may transmit signals generated by other components of the device 1405. In some examples, the transmitter 1420 may be co-located with the receiver 1410 in a transceiver module. For example, the transmitter 1420 may be a reference Figure 17 Examples of aspects of the transceiver 1720 are described. The transmitter 1420 may utilize a single antenna or a group of antennas.

[0213] Figure 15A block diagram 1500 of a device 1505 supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The device 1505 can be an example of aspects of the device 1405 or base station 105 as described herein. The device 1505 may include a receiver 1510, a communication manager 1515, and a transmitter 1535. The device 1505 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0214] The receiver 1510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to control resource set design for low-layer UEs with reduced bandwidth, etc.). The information may be passed to other components of the device 1505. The receiver 1510 may be a reference Figure 17 Examples of various aspects of the transceiver 1720 are described. The receiver 1510 may utilize a single antenna or a group of antennas.

[0215] The communication manager 1515 may be an example of aspects of the communication manager 1415 as described herein. The communication manager 1515 may include a control resource indication manager 1520, a control information transmission manager 1525, and a communication control manager 1530. The communication manager 1515 may be an example of aspects of the communication manager 1710 as described herein.

[0216] The control resource indication manager 1520 can map a CCE set across more than three symbols, wherein the CCE set includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; and send a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, the control resource set including the CCE set.

[0217] The control information transmission manager 1525 may send at least a first portion of the control information on one or more first REGs during a first monitoring opportunity and send at least a second portion of the control information on one or more second REGs during a second monitoring opportunity.

[0218] The communication control manager 1530 may communicate with the UE according to the control information.

[0219] The transmitter 1535 can transmit signals generated by other components of the device 1505. In some examples, the transmitter 1535 can be co-located with the receiver 1510 in a transceiver module. For example, the transmitter 1535 can be a reference Figure 17Examples of various aspects of the transceiver 1720 are described. The transmitter 1535 can utilize a single antenna or a group of antennas.

[0220] Figure 16 A block diagram 1600 of a communication manager 1605 supporting control resource set design for reduced bandwidth low-tier UEs in accordance with aspects of the present disclosure is shown. The communication manager 1605 may be an example of aspects of the communication manager 1415, the communication manager 1515, or the communication manager 1710 described herein. The communication manager 1605 may include a control resource indication manager 1610, a control information transmission manager 1615, a communication control manager 1620, a time resource manager 1625, a REG number manager 1630, and a slot index manager 1635. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0221] The control resource indication manager 1610 may map a CCE set across more than three symbols, wherein the CCE set includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity. In some examples, the control resource indication manager 1610 may send a signal identifying a set of control resources for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set including the CCE set.

[0222] The control information transmission manager 1615 may transmit at least a first portion of the control information on one or more first REGs during a first monitoring opportunity. In some examples, the control information transmission manager 1615 may transmit at least a second portion of the control information on one or more second REGs during a second monitoring opportunity. In some examples, the control information transmission manager 1615 may transmit the control information on more than three symbols of the time slot during the time slot. In some cases, the first monitoring opportunity and the second monitoring opportunity comprise the same time slot or different time slots. In some cases, the first monitoring opportunity is in a different time slot than the second monitoring opportunity, and the control information transmission manager 1615 may identify timing for communication with the base station based on the time slot index of the first monitoring opportunity and the indication of the control information.

[0223] The communication control manager 1620 can communicate with the UE according to the control information. In some examples, the communication control manager 1620 can communicate with the UE according to the control information.

[0224] The time resource manager 1625 may send the first portion of the control information over two or more control portions of the first monitoring time slot. In some examples, the time resource manager 1625 may send the second portion of the control information over two or more control portions of the second monitoring time slot. In some examples, the time resource manager 1625 may indicate the timing for communication with the UE based on the timing of the first monitoring time slot and the duration indication in the control information. In some examples, the time resource manager 1625 may indicate the timing for communication with the UE based on the timing of the second monitoring time slot. In some cases, one or more first REGs include a first CCE and one or more second REGs include a second CCE, wherein the first CCE is different from the second CCE.

[0225] The REG number manager 1630 may map the one or more first REGs using corresponding REG indices that are further based on the increasing order of the symbol index of the first monitoring opportunity. In some examples, the REG number manager 1630 may map the one or more first REGs using corresponding REG indices that are further based on the increasing order of the frequency resource block resource index within the first monitoring opportunity.

[0226] In some examples, the REG number manager 1630 may map the one or more first REGs using corresponding REG indices that are further based on the increasing order of the indices of the first monitoring occasion and the second monitoring occasion. In some examples, the REG number manager 1630 may map the one or more first REGs using corresponding interleaver patterns that are further based on the one or more first REGs within the first monitoring occasion. In some examples, the REG number manager 1630 may interleave the one or more first REGs of the first monitoring occasion separately from the one or more second REGs of the second monitoring occasion. In some examples, the REG number manager 1630 may apply a cyclic shift to the interleaved one or more first REGs of the first monitoring occasion and the one or more second REGs of the second monitoring occasion, wherein the cyclic shift is based on at least one of the following: a first identifier for the one or more first REGs, or a second identifier for the one or more second REGs, or a slot index for the first monitoring occasion, or a second index for the second monitoring occasion, or a combination thereof.

[0227] The slot index manager 1635 may identify a slot index for the first monitoring occasion. In some examples, the slot index manager 1635 may identify a first CCE index of a set of CCEs in a control resource set based on the slot index.

[0228] Figure 17 A diagram of a system 1700 including a device 1705 that supports control resource set design for low-layer UEs with reduced bandwidth in accordance with aspects of the present disclosure is shown. The device 1705 may be an example of, or include components of, the device 1405, device 1505, or base station 105 as described herein. The device 1705 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1710, a network communication manager 1715, a transceiver 1720, an antenna 1725, a memory 1730, a processor 1740, and an inter-station communication manager 1745. These components may communicate electronically via one or more buses, such as a bus 1750.

[0229] The communication manager 1710 can perform the following operations: map a CCE set across more than three symbols, wherein the CCE set includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity; send a signal that identifies a control resource set for the UE to monitor for control information scheduled for communication between the UE and the base station, the control resource set including the CCE set; send at least a first part of the control information on one or more first REGs during the first monitoring opportunity; send at least a second part of the control information on one or more second REGs during the second monitoring opportunity; and communicate with the UE based on the control information.

[0230] The network communications manager 1715 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1715 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0231] The transceiver 1720 can communicate bidirectionally via one or more antennas, wired links, or wireless links as described above. For example, the transceiver 1720 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1720 can also include a modem for modulating packets and providing the modulated packets to the antenna for transmission, and demodulating packets received from the antenna.

[0232] In some cases, a wireless device may include a single antenna 1725. However, in some cases, the device may have more than one antenna 1725, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0233] Memory 1730 may include RAM, ROM, or a combination thereof. Memory 1730 may store computer-readable code 1735, which includes instructions that, when executed by a processor (e.g., processor 1740), cause the device to perform the various functions described herein. In some cases, memory 1730 may also contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0234] Processor 1740 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1740 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1740. Processor 1740 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1730) to cause 1705 to perform various functions (e.g., functions or tasks supporting control resource set design for low-layer UEs with reduced bandwidth).

[0235] The inter-site communication manager 1745 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with the UE 115 in cooperation with the other base stations 105. For example, the inter-site communication manager 1745 may coordinate scheduling of transmissions to the UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1745 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between the base stations 105.

[0236] The code 1735 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1735 may be stored in a non-transitory computer-readable medium (such as system memory or other types of memory). In some cases, the code 1735 may not be directly executable by the processor 1740, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0237] Figure 18 A flow chart illustrating a method 1800 for supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1800 may be implemented by the UE 115 or components thereof as described herein. Figures 10 to 13In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0238] At 1805, the UE may receive a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a set of CCEs organized across more than three symbols and comprising one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed as described with reference to Figures 10 to 13 Describes the control resources that the manager is instructed to perform.

[0239] At 1810, the UE may receive at least a first portion of control information on one or more first REGs during a first monitoring opportunity. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed as described with reference to Figures 10 to 13 The control information described is received by the manager.

[0240] At 1815, the UE may receive at least a second portion of the control information on one or more second REGs during a second monitoring opportunity. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed as described with reference to Figures 10 to 13 The control information described is received by the manager.

[0241] At 1820, the UE may communicate with the base station according to the control information. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed as described with reference to Figures 10 to 13 The communication control manager described here is used to perform the above operations.

[0242] Figure 19 A flow chart illustrating a method 1900 for supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The operations of the method 1900 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1900 may be implemented by a base station 105 or components thereof as described herein. Figures 14 to 17 In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0243] At 1905, the base station may map a CCE set across more than three symbols, wherein the CCE set includes one or more first REGs mapped to a first monitoring opportunity and one or more second REGs mapped to a second monitoring opportunity. The operations of 1905 may be performed according to the methods described herein. In some examples, aspects of the operations of 1905 may be as described with reference to Figures 14 to 17 Describes the control resources that the manager is instructed to perform.

[0244] At 1910, a base station may send a signal identifying a control resource set for a UE to monitor for control information scheduling communications between the UE and the base station, the control resource set including a set of CCEs. The operations of 1910 may be performed according to the methods described herein. In some examples, aspects of the operations of 1910 may be performed as described with reference to Figures 14 to 17 Describes the control resources that the manager is instructed to perform.

[0245] At 1915, the base station may send at least a first portion of the control information on one or more first REGs during a first monitoring opportunity. The operations of 1915 may be performed according to the methods described herein. In some examples, aspects of the operations of 1915 may be performed as described with reference to Figures 14 to 17 The control information transfer manager described here is executed.

[0246] At 1920, the base station may transmit at least a second portion of the control information on one or more second REGs during a second monitoring opportunity. The operations of 1920 may be performed according to the methods described herein. In some examples, aspects of the operations of 1920 may be performed as described with reference to Figures 14 to 17 The control information transfer manager described here is executed.

[0247] At 1925, the base station may communicate with the UE based on the control information. The operations of 1925 may be performed according to the methods described herein. In some examples, aspects of the operations of 1925 may be performed as described with reference to Figures 14 to 17 The communication control manager described here is used to perform the above operations.

[0248] Figure 20 A flow chart illustrating a method 2000 for supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The operations of the method 2000 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 2000 may be implemented by the UE 115 or components thereof as described herein. Figures 10 to 13In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0249] At 2005, the UE may receive a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a set of CCEs organized across more than three symbols, each CCE in the set of CCEs comprising one or more REGs. The operations of 2005 may be performed according to the methods described herein. In some examples, aspects of the operations of 2005 may be performed as described with reference to Figures 10 to 13 Describes the control resources that the manager is instructed to perform.

[0250] At 2010, the UE may receive control information on more than three symbols of a time slot during a time slot. The operations of 2010 may be performed according to the methods described herein. In some examples, aspects of the operations of 2010 may be performed as described with reference to Figures 10 to 13 The control information described is received by the manager.

[0251] At 2015, the UE may communicate with the base station according to the control information. The operations of 2015 may be performed according to the methods described herein. In some examples, aspects of the operations of 2015 may be performed as described with reference to Figures 10 to 13 The communication control manager described here is used to perform the above operations.

[0252] Figure 21 A flow chart illustrating a method 2100 for supporting control resource set design for low-layer UEs with reduced bandwidth according to aspects of the present disclosure is shown. The operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. Figures 14 to 17 In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0253] At 2105, the base station may map a CCE set across more than three symbols of a time slot, the CCE set including one or more REGs mapped to the time slot. The operations of 2105 may be performed according to the methods described herein. In some examples, aspects of the operations of 2105 may be as described with reference to Figures 14 to 17 Describes the control resources that the manager is instructed to perform.

[0254] At 2110, the base station may send a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and the base station, the control resource set including a set of CCEs. The operations of 2110 may be performed according to the methods described herein. In some examples, aspects of the operations of 2110 may be as described with reference to Figures 14 to 17 Describes the control resources that the manager is instructed to perform.

[0255] At 2115, the base station may transmit control information on more than three symbols of the time slot during the time slot. The operations of 2115 may be performed according to the methods described herein. In some examples, aspects of the operations of 2115 may be performed as described with reference to Figures 14 to 17 The control information transfer manager described here is executed.

[0256] At 2120, the base station may communicate with the UE based on the control information. The operations of 2120 may be performed according to the methods described herein. In some examples, aspects of the operations of 2120 may be performed as described with reference to Figures 14 to 17 The communication control manager described here is used to perform the above operations.

[0257] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified, and that other implementations are possible. Further, aspects of two or more of the methods described may be combined.

[0258] The techniques described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. A CDMA system can implement radio technologies such as CDMA 2000 and Universal Terrestrial Radio Access (UTRA). CDMA 2000 covers the IS-2000, IS-95, and IS-856 standards. Versions of IS-2000 are commonly referred to as CDMA 2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA 2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM).

[0259] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and the like. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for the systems and radio technologies mentioned herein as well as other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may be applicable beyond LTE, LTE-A, LTE-A Pro, or NR applications.

[0260] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UEs with a service subscription with the network provider. Compared to a macro cell, a small cell can be associated with a lower-power base station and can operate in the same or different frequency bands (e.g., licensed, unlicensed, etc.) as the macro cell. According to various examples, small cells may include pico cells, femto cells, and micro cells. For example, a pico cell can cover a small geographic area and can allow unrestricted access by UEs with a service subscription with the network provider. A femto cell can also cover a small geographic area (e.g., a residence) and can provide restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs for users in a residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, pico eNB, femto eNB, or home eNB. An eNB can support one or more (e.g., two, three, four, etc.) cells and may also support communications using one or more component carriers.

[0261] The wireless communication systems described herein can support synchronous operation or asynchronous operation. For synchronous operation, base stations can have similar frame timing, and transmissions from different base stations can be approximately aligned in time. For asynchronous operation, base stations can have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein can be used for either synchronous or asynchronous operation.

[0262] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0263] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed using a general-purpose processor, a DSP, an ASIC, 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 in an alternative embodiment, the processor may be any conventional 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, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0264] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Features that implement the functions may also be physically located in various locations, including being distributed such that portions of the functions are implemented at different physical locations.

[0265] Computer-readable medium includes both non-transitory computer storage medium and communication medium, and described communication medium includes any medium that promotes the transmission of computer program from one place to another place.Non-transitory storage medium can be any available medium that can be accessed by general-purpose computer or special-purpose computer.By way of example and not limitation, non-transitory computer-readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage device or can be used for carrying or storing desired program code unit and any other non-transitory medium that can be accessed by general-purpose computer or special-purpose computer or general-purpose processor or special-purpose processor in the form of instruction or data structure.In addition, any connection is suitably referred to as computer-readable medium.For example, if software is to be sent from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology (such as infrared, radio and microwave), then coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology (such as infrared, radio and microwave) are included in the definition of medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, wherein disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0266] As used herein (including in the claims), "or" as used in 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, so that, 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 (i.e., A and B and C). Furthermore, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0267] In the accompanying drawings, similar components or features may have the same reference number. Further, various components of the same type may be distinguished by following the reference number with a dash and a second reference that distinguishes between similar components. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, regardless of the second reference number or other subsequent reference numbers.

[0268] The description set forth herein in conjunction with the accompanying drawings describes example configurations and does not represent all examples that can be implemented or within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration" and not "preferred over other examples" or "having advantages over other examples." For the purpose of providing an understanding of the described technology, the detailed description includes specific details. However, these technologies can 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.

[0269] The description herein is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present 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 present disclosure. Therefore, the present 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.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: receiving a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a plurality of control channel elements organized across more than three symbols and comprising one or more first resource element groups mapped to a first monitoring opportunity and one or more second resource element groups mapped to a second monitoring opportunity; receiving at least a first portion of the control information on the one or more first resource element groups during the first monitoring opportunity; receiving at least a second portion of the control information on the one or more second resource element groups during the second monitoring opportunity; as well as Communicate with the base station according to the control information.

2. The method according to claim 1, wherein The one or more first resource element groups include a first control channel element and the one or more second resource element groups include a second control channel element, wherein the first control channel element is different from the second control channel element.

3. The method according to claim 1, wherein Receiving at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity comprises: The one or more first resource element groups are identified based at least in part on corresponding resource element group indices based at least in part on an increasing order of symbol indices of the first monitoring occasion.

4. The method according to claim 3, wherein: Receiving at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity further comprises: The one or more first resource element groups are identified based at least in part on the corresponding resource element group index, which is also based at least in part on an increasing order of frequency resource block resource indices within the first monitoring occasion.

5. The method according to claim 4, wherein Receiving at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity further comprises: The one or more first resource element groups are identified based at least in part on the corresponding resource element group index, which is also based at least in part on an increasing order of indices of the first monitoring occasion and the second monitoring occasion.

6. The method according to claim 3, wherein: Receiving at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity further comprises: The one or more first resource element groups are identified based at least in part on an interleaver pattern, which is also based at least in part on the one or more first resource element groups within the first monitoring opportunity.

7. The method according to claim 6, further comprising: The one or more first resource element groups of the first monitoring opportunity are deinterleaved separately from the one or more second resource element groups of the second monitoring opportunity.

8. The method according to claim 7, wherein: Deinterleaving the one or more first resource element groups of the first monitoring opportunity with the one or more second resource element groups of the second monitoring opportunity includes: Identify a cyclic shift applied to one or more first resource element groups of the first monitoring occasion and one or more second resource element groups of the second monitoring occasion that are interleaved, wherein the cyclic shift is based on at least one of the following: a first identifier for the one or more first resource element groups, or a second identifier for the one or more second resource element groups, or a first time slot index for the first monitoring occasion, or a second time slot index for the second monitoring occasion, or a combination thereof.

9. The method according to claim 1, further comprising: identifying a time slot index of the first monitoring opportunity; as well as A first control channel element index of a set of control channel elements in the set of control resources is identified based at least in part on the slot index.

10. The method according to claim 1, wherein The first monitoring opportunity is the same as or a different time slot from the second monitoring opportunity.

11. The method according to claim 1, wherein The first monitoring opportunity is in a time slot different from the second monitoring opportunity, further comprising: Timing for the communication with the base station is identified based on a slot index of the first monitoring occasion and an indication of the control information.

12. A method for wireless communication at a base station, comprising: mapping a plurality of control channel elements across more than three symbols, wherein the plurality of control channel elements comprises one or more first resource element groups mapped to a first monitoring opportunity and one or more second resource element groups mapped to a second monitoring opportunity; transmitting a signal identifying a control resource set for a user equipment (UE) to monitor for control information scheduling communications between the UE and the base station, the control resource set including the plurality of control channel elements; transmitting at least a first portion of the control information on the one or more first resource element groups during the first monitoring opportunity; transmitting at least a second portion of the control information on the one or more second resource element groups during the second monitoring opportunity; as well as Communicate with the UE according to the control information.

13. The method according to claim 12, further comprising: transmitting the first portion of the control information over two or more control portions of the first monitoring opportunity; as well as The second portion of the control information is sent over two or more control portions of the second monitoring occasion.

14. The method according to claim 12, wherein: Transmitting at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity comprises: The one or more first resource element groups are mapped with corresponding resource element group indices, which are also based at least in part on an increasing order of symbol indices of the first monitoring occasions.

15. The method according to claim 14, wherein Transmitting at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity comprises: The one or more first resource element groups are mapped with corresponding resource element group indices, which are also based at least in part on an increasing order of frequency resource block resource indices within the first monitoring occasion.

16. The method according to claim 15, wherein Transmitting at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity comprises: The one or more first resource element groups are mapped with corresponding resource element group indices, which are also based at least in part on an increasing order of indices of the first monitoring occasion and the second monitoring occasion.

17. The method according to claim 16, wherein Transmitting at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity further comprises: The one or more first resource element groups are mapped using a corresponding interleaver pattern, the corresponding interleaver pattern also being based at least in part on the one or more first resource element groups within the first monitoring opportunity.

18. The method according to claim 12, further comprising: The one or more first resource element groups of the first monitoring opportunity are interleaved separately from the one or more second resource element groups of the second monitoring opportunity.

19. The method according to claim 18, wherein Interleaving the one or more first resource element groups of the first monitoring opportunity and the one or more second resource element groups of the second monitoring opportunity includes: A cyclic shift is applied to the interleaved one or more first resource element groups of the first monitoring opportunity and the one or more second resource element groups of the second monitoring opportunity, wherein the cyclic shift is based on at least one of the following: a first identifier for the one or more first resource element groups, or a second identifier for the one or more second resource element groups, or a first time slot index for the first monitoring opportunity, or a second time slot index for the second monitoring opportunity, or a combination thereof.

20. The method of claim 12, further comprising: identifying a time slot index of the first monitoring opportunity; as well as A first control channel element index of a set of control channel elements in the set of control resources is identified based at least in part on the slot index.

21. The method according to claim 12, wherein The one or more first resource element groups include a first control channel element and the one or more second resource element groups include a second control channel element, wherein the first control channel element is different from the second control channel element.

22. The method according to claim 12, wherein The first monitoring opportunity is the same as or a different time slot from the second monitoring opportunity.

23. The method according to claim 12, wherein The first monitoring opportunity is in a time slot different from the second monitoring opportunity, further comprising: Timing for the communication with the UE is scheduled based at least in part on a slot index of the first monitoring occasion and an indication of the control information.

24. An apparatus for wireless communication at a user equipment (UE), comprising: processor, a memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to perform the following operations: receiving a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a plurality of control channel elements organized across more than three symbols and comprising one or more first resource element groups mapped to a first monitoring opportunity and one or more second resource element groups mapped to a second monitoring opportunity; receiving at least a first portion of the control information on the one or more first resource element groups during the first monitoring opportunity; receiving at least a second portion of the control information on the one or more second resource element groups during the second monitoring opportunity; as well as Communicate with the base station according to the control information.

25. The apparatus according to claim 24, wherein The one or more first resource element groups include a first control channel element and the one or more second resource element groups include a second control channel element, wherein the first control channel element is different from the second control channel element.

26. The apparatus according to claim 24, wherein The instructions for receiving at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity are executable by the processor to cause the apparatus to: The one or more first resource element groups are identified based at least in part on corresponding resource element group indices based at least in part on an increasing order of symbol indices of the first monitoring occasion.

27. The device according to claim 26, wherein The instructions for receiving at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity are also executable by the processor to cause the apparatus to: The one or more first resource element groups are identified based at least in part on the corresponding resource element group index, which is also based at least in part on an increasing order of frequency resource block resource indices within the first monitoring occasion.

28. An apparatus for wireless communication at a base station, comprising: processor, a memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to perform the following operations: mapping a plurality of control channel elements across more than three symbols, wherein the plurality of control channel elements comprises one or more first resource element groups mapped to a first monitoring opportunity and one or more second resource element groups mapped to a second monitoring opportunity; transmitting a signal identifying a control resource set for a user equipment (UE) to monitor for control information scheduling communications between the UE and the base station, the control resource set including the plurality of control channel elements; transmitting at least a first portion of the control information on the one or more first resource element groups during the first monitoring opportunity; transmitting at least a second portion of the control information on the one or more second resource element groups during the second monitoring opportunity; and Communicate with the UE according to the control information.

29. The apparatus according to claim 28, wherein The instructions are also executable by the processor to cause the device to perform the following operations: transmitting the first portion of the control information over two or more control portions of the first monitoring opportunity; as well as The second portion of the control information is sent over two or more control portions of the second monitoring occasion.

30. The apparatus according to claim 28, wherein The instructions for transmitting at least the first portion of the control information on the one or more first resource element groups during the first monitoring opportunity are executable by the processor to cause the apparatus to: The one or more first resource element groups are mapped with corresponding resource element group indices, which are also based at least in part on an increasing order of symbol indices of the first monitoring occasions.

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