Semi-persistent scheduling reception configuration for multiple downlink shared channels

Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink transmission associated with a first value of a pool index from a first base station. The UE may receive a downlink transmission associated with a second value of the pool index from a second base station. The transmissions associated with the first pool index may overlap with those associated with the second pool index (e.g., in time, frequency, or both). The UE may then determine (e.g., based on a set of rules) which of the overlapping transmissions to receive. In some examples, the UE may determine which of the overlapping transmissions to receive based on the pool index associated with the transmission.

Description

[0001] Related Applications

[0002] This patent application claims priority to U.S. patent application No. 17 / 306,478, filed by KHOSHNEVISAN et al. on May 3, 2021, entitled “SEMI-PERSISTENT SCHEDULING RECEPTION CONFIGURATIONS FOR MULTIPLE DOWNLINK SHARED CHANNELS,” and U.S. Provisional Patent Application No. 63 / 025,869, filed by KHOSHNEVISAN et al. on May 15, 2020, entitled “SEMI-PERSISTENT SCHEDULING RECEPTION CONFIGURATIONS FOR MULTIPLE DOWNLINK SHARED CHANNELS,” each of which is assigned to the assignee of this patent application and is expressly incorporated herein by reference. Technical Field

[0003]

[0013] The following relates generally to wireless communications, and more particularly, to a semi-persistent scheduling (SPS) reception configuration for multiple downlink shared channels. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, information transfer, 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, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may employ techniques 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 spectrum orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices (which may be referred to as user equipment (UE) in other aspects).

[0005] In some wireless communication systems, multiple base stations can configure UEs for receiving periodic downlink services according to semi-persistent scheduling (SPS) configurations. For example, the SPS configuration may include a periodic downlink message sent by a base station on a physical downlink shared channel (PDSCH) (each time slot, every second time slot, every fourth time slot, etc.). However, in some cases, the UE may be scheduled to receive transmissions from multiple base stations, and the SPS transmissions may overlap with each other in time, frequency, or both, or overlap with other PDSCHs (e.g., dynamically scheduled PDSCHs). In such cases, the UE may not have the ability to receive overlapping transmissions, or may not be configured to receive overlapping transmissions, which may cause one or more PDSCHs, or in some cases all PDSCHs, to be lost or otherwise not successfully decoded. Summary of the invention

[0006] The described technology relates to improved methods, systems, devices and apparatuses for supporting semi-persistent scheduling (SPS) reception configurations for multiple downlink shared channels. In general, the described technology enables a user equipment (UE) to receive an SPS downlink transmission (e.g., a physical downlink shared channel (PDSCH) transmission) associated with a first value of a pool index from a first base station according to a first periodicity, which can indicate to the UE which base station is sending the SPS downlink transmission. The UE can receive an SPS downlink transmission associated with a second value of the pool index from a second base station according to a second periodicity. The SPS transmissions associated with the first pool index can overlap (e.g., in time) with those SPS transmissions associated with the second pool index. The UE can then determine (e.g., based on a set of rules) which SPS transmission of the overlapping SPS transmissions to receive. In some examples, a dynamic PDSCH associated with a pool index (e.g., a PDSCH scheduled by a dynamic grant) can overlap (e.g., in time, frequency, or both) with SPS transmissions associated with the same or different pool indexes. The UE may determine whether to receive or drop one or more of the PDSCHs based on a pool index associated with the dynamic PDSCH and a control message for scheduling the dynamic PDSCH, among other factors.

[0007] A method of wireless communication at a UE is described. The method may include: activating a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index; determining whether to receive at least one downlink shared channel or a second downlink shared channel in the set of downlink shared channels based on a time overlap of the set of downlink shared channels with the second downlink shared channel; and receiving at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both based on the determination.

[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: activate a set of SPS configurations for a downlink shared channel set for the UE, the downlink shared channel set being associated with a first pool index; receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index; determine whether to receive at least one downlink shared channel or a second downlink shared channel in the downlink shared channel set based on a time overlap of the downlink shared channel set with the second downlink shared channel; and receive at least one downlink shared channel, the second downlink shared channel, or both in the downlink shared channel set based on the determination.

[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: activating a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index; determining whether to receive at least one downlink shared channel or a second downlink shared channel in the set of downlink shared channels based on a time overlap of the set of downlink shared channels with the second downlink shared channel; and receiving at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both based on the determination.

[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: activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index; determine whether to receive at least one downlink shared channel or a second downlink shared channel in the set of downlink shared channels based on a time overlap of the set of downlink shared channels with the second downlink shared channel; and receive at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both based on the determination.

[0011] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining to receive a first downlink shared channel over a third downlink shared channel in a set of downlink shared channels based on an SPS configuration index associated with a first downlink shared channel in a set of downlink shared channels being lower than an SPS configuration index associated with a third downlink shared channel in a set of downlink shared channels.

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: activating a second SPS configuration set for a second downlink shared channel set associated with a second pool index and including a second downlink shared channel based on a control message and one or more additional control messages, and determining that the second downlink shared channel is received in priority to the third downlink shared channel based on the SPS configuration index associated with the second downlink shared channel being lower than the SPS configuration index associated with a third downlink shared channel in the second downlink shared channel set.

[0013] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining to receive the first downlink shared channel in preference to the third downlink shared channel in a set of downlink shared channels based on the first downlink shared channel having a higher priority than a third downlink shared channel in the set of downlink shared channels.

[0014] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: activating a second SPS configuration set for a second downlink shared channel set associated with a second pool index and including a second downlink shared channel based on a control message and one or more additional control messages, and determining to receive the second downlink shared channel in priority to the third downlink shared channel based on the priority of the second downlink shared channel being higher than the priority of a third downlink shared channel in the second downlink shared channel set.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving both a downlink shared channel and a second downlink shared channel in a downlink shared channel set based on the second downlink shared channel being dynamically scheduled by control information and the first pool index being different from the second pool index, wherein the downlink shared channel and the second downlink shared channel overlap in time.

[0016] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining to avoid receiving one or more downlink shared channels in a set of downlink shared channels based on at least partial temporal overlap of the second downlink shared channel with one or more downlink shared channels in the set of downlink shared channels, wherein the second pool index may be the same as the first pool index.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a start symbol of one or more downlink shared channels in the set of downlink shared channels may be spaced a threshold number of symbols from the end of the control message.

[0018] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving a downlink shared channel and a second downlink shared channel according to a set of rules based on a downlink shared channel in the set of downlink shared channels at least partially overlapping with the second downlink shared channel in both time and frequency.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a set of rules indicates that only a downlink shared channel associated with a given pool index may be received by a UE based on a demodulation reference signal (DMRS) symbol misalignment of a downlink shared channel and a second downlink shared channel.

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a set of rules indicates that only downlink shared channels associated with a given pool index can be received by a UE based on one or more DMRS ports of a downlink shared channel and one or more DMRS ports of a second downlink shared channel belonging to the same DMRS code division multiplexing (CDM) group.

[0021] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving both a downlink shared channel and a second downlink shared channel in a downlink shared channel set independently of alignment between a demodulation reference signal (DMRS) symbol of a downlink shared channel and a DMRS symbol of a second downlink shared channel and independently of one or more DMRS ports of the downlink shared channel and one or more DMRS ports of the second downlink shared channel belonging to the same DMRS code division multiplexing (CDM) group, wherein the downlink shared channel overlaps at least partially with the second downlink shared channel in both time and frequency, and wherein the first pool index may be different from the second pool index.

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the second downlink shared channel is associated with a semi-persistently scheduled downlink shared channel.

[0023] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, means, or instructions for receiving both a downlink shared channel and a second downlink shared channel in a set of downlink shared channels based on the first pool index being different from the second pool index.

[0024] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: activating a second SPS configuration set for a second downlink shared channel set associated with a second pool index and including a second downlink shared channel based on a control message and one or more additional control messages, determining to receive the first downlink shared channel in preference to the third downlink shared channel based on the SPS configuration index associated with the first downlink shared channel being lower than the SPS configuration index associated with a third downlink shared channel in the downlink shared channel set, and determining to avoid receiving one or more downlink shared channels in the second downlink shared channel set based on the fact that one or more downlink shared channels in the second downlink shared channel set at least partially overlap with the first downlink shared channel in time and frequency.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, DMRS symbols of the first downlink shared channel and one or more downlink shared channels in the second set of downlink shared channels may be misaligned.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, one or more DMRS ports of a first downlink shared channel and one or more DMRS ports of one or more downlink shared channels in a second downlink shared channel set belong to the same DMRS CDM group.

[0027] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining that a fourth downlink shared channel is received in preference to a fifth downlink shared channel based on an SPS configuration index associated with a fourth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set being lower than an SPS configuration index associated with a fifth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set.

[0028] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: receiving a second downlink shared channel based on the second downlink shared channel being dynamically scheduled by a control message and at least partially overlapping in both time and frequency with at least one downlink shared channel in a set of downlink shared channels, and avoiding receiving at least one downlink shared channel in the set of downlink shared channels.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, DMRS symbols of at least one downlink shared channel and a second downlink shared channel may be unaligned.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a start symbol of at least one downlink shared channel may be spaced apart from an end of the control message by a threshold number of symbols.

[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, one or more DMRS ports of a downlink shared channel and one or more DMRS ports of a second downlink shared channel belong to the same DMRS CDM group.

[0032] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for receiving at least one downlink shared channel in a set of downlink shared channels and a second downlink shared channel based on the second downlink shared channel at least partially overlapping in both time and frequency with at least one downlink shared channel in the set of downlink shared channels.

[0033] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for sending an indication of the number of shared channels that can be received by the UE, and determining to receive one or more downlink shared channels or a second downlink shared channel in a downlink shared channel set based on the number of shared channels that can be received by the UE.

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the indication includes a first number of shared channels of a first pool index that can be received by the UE, and the indication includes a second number of shared channels of a second pool index that can be received by the UE. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 An example of a wireless communication system supporting a semi-persistent scheduling (SPS) reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown.

[0036] Figure 2 An example of a wireless communication system supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown.

[0037] Figure 3A , 3B 3C show examples of resource sets supporting SPS reception configurations for multiple downlink shared channels according to aspects of the present disclosure.

[0038] Figure 4A , 4B 4C show examples of resource sets supporting SPS reception configurations for multiple downlink shared channels according to aspects of the present disclosure.

[0039] Figure 5A , 5B 5C show examples of resource sets supporting SPS reception configurations for multiple downlink shared channels according to aspects of the present disclosure.

[0040] Figure 6 An example of a process flow supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown.

[0041] Figure 7 and 8 A block diagram of a device supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown.

[0042] Fig. 9 A block diagram of a communications manager supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown.

[0043] Fig.10 A schematic diagram of a system including a device supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown.

[0044] Figures 11 to 16 A flow chart of a method of supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0045] In some wireless communication systems, a base station may use a semi-static grant to schedule multiple downlink transmissions to a user equipment (UE). Such scheduling may be referred to as semi-persistent scheduling (SPS) and may be used to limit overhead and processing delays in wireless communication systems (e.g., because a semi-static grant may be sent less frequently than a dynamic grant). An SPS configuration may include a periodic downlink message sent by a base station on a physical downlink shared channel (PDSCH). A base station that configures a UE with SPS resources may configure the UE with SPS resources by sending semi-static control signaling (e.g., via a radio resource control (RRC) message) to the UE, and may more dynamically activate an SPS configuration associated with a set of SPS resources (e.g., using downlink control information (DCI) carried by a physical downlink control channel (PDCCH) to activate or deactivate an SPS configuration for the UE). In some cases, a UE may be configured to receive a PDSCH transmission (e.g., an SPS PDSCH or a dynamic PDSCH) from more than one base station (e.g., multiple transmit receive points (TRPs)). In such cases, each PDSCH transmission may be associated with a corresponding pool index value corresponding to the base station performing the transmission. However, the UE may receive an SPS PDSCH associated with a first pool index value that overlaps with other PDSCHs (other SPS PDSCHs or other dynamically scheduled PDSCHs) of the same or different pool index values ​​(e.g., in time, frequency, or both). In some cases, the UE may not support decoding of overlapping PDSCH transmissions associated with different pool index values.

[0046] As described herein, the wireless communication system can support the technology for successfully decoding SPS downlink transmission and dynamic downlink transmission that can overlap in time, frequency, or both and is associated with different pool index values. In one example, the UE can receive the SPS PDSCH that is associated with the first pool index and overlaps in time. The UE can receive the SPS PDSCH that is associated with the second pool index and overlaps in time. The UE can determine which overlapping SPS PDSCHs to abandon among the first pool index and which overlapping SPS PDSCHs to abandon among the second pool index. Once the overlapping SPS PDSCHs are resolved within each pool index, the UE can receive any surviving SPS PDSCH.

[0047] In another example, the UE may receive an SPS PDSCH associated with a first pool index and a dynamic PDSCH associated with a second pool index, wherein the two PDSCHs overlap in time. The UE may determine whether the SPS PDSCH transmission is received based on the pool index associated with the dynamic PDSCH. For example, if the dynamic PDSCH and SPS transmissions are associated with the same pool index, the UE may determine to receive only the dynamic PDSCH. However, if the dynamic PDSCH and SPS transmissions are associated with different pool indexes, the UE may determine to receive both transmissions.

[0048] In some cases, the UE may receive an SPS PDSCH and one or more dynamic PDSCHs. The SPS PDSCHs may overlap with each other and with the dynamic PDSCH in time, frequency, or both. In such cases, the UE may determine which of the overlapping SPS PDSCHs to receive, or may determine to receive two SPS PDSCHs as long as the two SPS PDSCHs are each associated with a different pool index. If the SPS PDSCH overlaps with the dynamic PDSCH in time and frequency, the UE may determine whether the SPS PDSCH transmission is received based on the pool index associated with the dynamic PDSCH. As described herein, the SPS PDSCH may be referred to as a PDSCH without a corresponding PDCCH, while the dynamic PDSCH may be scheduled via a DCI within the PDCCH, and may therefore be referred to as having a corresponding PDCCH.

[0049] Aspects of the present disclosure are initially described in the context of a wireless communication system. Aspects of the present disclosure are then described with reference to resource sets and process flows. Aspects of the present disclosure are also illustrated by and described with reference to apparatus schematics, system schematics, and flow charts associated with SPS reception configurations for multiple downlink shared channels.

[0050] Figure 1 An example of a wireless communication system 100 supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0051] The base stations 105 may be distributed throughout a geographic area to form the wireless communication system 100, and may be devices of different forms or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a coverage area over which the base stations 105 and the UEs 115 may support transmission of signals according to one or more radio access technologies.

[0052] UE 115 may be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, or mobile, or both stationary and mobile at different times. UE 115 may be devices of different forms or with different capabilities. Some examples of UE 115 are shown in FIG. Figure 1 In. Figure 1 As shown in , the UE 115 described herein may be able to communicate with various types of devices (such as, other UEs 115, base stations 105 or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes), or other network devices).

[0053] Base stations 105 may communicate with core network 130, or with each other, or both. For example, base stations 105 may interface with core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other on backhaul links 120 (e.g., via X2, Xn, or other interfaces) directly (e.g., directly between base stations 105), or indirectly (e.g., via core network 130), or both. In some examples, backhaul links 120 may be or include one or more wireless links.

[0054] One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base station transceiver, a radio base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B or a Gigabit Node B (any of which may be referred to as a gNB), a home Node B, a home evolved Node B, or other suitable terminology.

[0055] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a user device, or some other suitable term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as 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 may include or may be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects (such as appliances, or vehicles, meters, etc.).

[0056] The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 as shown in .

[0057] The UE 115 and the base station 105 may wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" may refer to a collection of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may use carrier aggregation or multi-carrier operation to support communication with the UE 115. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to the carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0058] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be placed according to a channel grid to be discovered by a UE 115. A carrier may operate in a standalone mode, in which initial acquisition and connection may be performed by a UE 115 via the carrier, or a carrier may operate in a non-standalone mode, in which a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.

[0059] The communication link 125 shown in the wireless communication network 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. A carrier may carry downlink or uplink communications (e.g., in an FDD mode), or may be configured to carry downlink or uplink communications (e.g., in a TDD mode).

[0060] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a plurality of determined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). A device of the wireless communication system 100 (e.g., a base station 105, a UE 115, or both) may have a hardware configuration that supports communications on a particular carrier bandwidth, or may be capable of being configured to support communications on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or a UE 115 that supports simultaneous communications via carriers associated with a plurality of carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a subband, a BWP) or the entire carrier bandwidth.

[0061] 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)). In a system employing MCM techniques, a resource element may be composed of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, wherein the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may also increase the data rate or data integrity used for communication with UE 115.

[0062] One or more numerologies for a carrier may be supported, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for the UE 115 may be restricted to the one or more active BWPs.

[0063] The time interval for the base station 105 or the UE 115 may be expressed as a multiple of a basic time unit, which may be referred to as T s =1 / (Δf max ·N f ) seconds sampling period, where Δf max It can represent the maximum supported subcarrier spacing, and N f The maximum supported discrete Fourier transform (DFT) size may be indicated. The time intervals of the communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0064] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided (e.g., in the time domain) into subframes, and each subframe may also be divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). In some wireless communication systems 100, the time slot may also be divided into multiple micro-time slots containing one or more symbols. In addition to the cyclic prefix, each symbol period may contain one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0065] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0066] 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, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a plurality of symbol periods and may be extended across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured as a set for UE 115. For example, one or more UEs in UE 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0067] Each base station 105 can provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots or other types of cells, or any combination thereof). The term "cell" can refer to a logical communication entity used to communicate with the base station 105 (e.g., on a carrier), and can be associated with an identifier (such as a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) used to distinguish adjacent cells. In some examples, a cell can also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. Depending on various factors (such as the capabilities of the base station 105), the range of such cells can range from a smaller area (e.g., a structure, a subset of a structure) to a larger area. For example, a cell can be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, etc.

[0068] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 115 having a service subscription with a network provider supporting the macro cell. A small cell may be associated with a lower power base station 105 than a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to a UE 115 having a service subscription with a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed user group (CSG), a UE 115 associated with a user in a home or office). A base station 105 may support one or more cells, and may also support communication on one or more cells using one or more component carriers.

[0069] In some examples, a carrier can support multiple cells, and different cells can be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)), which can provide access for different types of devices.

[0070] In some examples, the base stations 105 may 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 may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0071] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may (in some examples) not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0072] 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 base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that may utilize the information or present the information to a human interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. 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.

[0073] Some UEs 115 may be configured to employ an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception rather than transmission and reception simultaneously). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for UE 115 include entering a power-saving deep sleep mode when not participating in active communications, operating on a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0074] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services (such as, mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData)). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency may be used interchangeably herein.

[0075] In some examples, UE 115 may also be able to communicate directly with other UE 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a 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 a base station 105, or may otherwise be unable to receive transmissions from a base station 105. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, a base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving a base station 105.

[0076] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these. Vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in a V2X system can communicate with roadside infrastructure (such as roadside units), or use vehicle-to-network (V2N) communication to communicate with the network via one or more network nodes (e.g., base station 105), or both.

[0077] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnections to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the core network 130. User IP packets may be transmitted via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. Operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0078] Some of the network devices (such as base stations 105) may include subcomponents such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with the UE 115 through one or more other access network transport entities 145 (which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs)). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0079] The wireless communication system 100 may 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 very high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but, for macro cells, the waves may penetrate structures sufficiently to provide service to UEs 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) than transmissions using the lower frequencies and longer wavelengths of the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0080] The wireless communication system 100 may also operate in a super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also referred to as a centimeter band), or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also referred to as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices may be smaller and more dense than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may differ by country or regulatory agency.

[0081] 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), LTE unlicensed (LTE-U) wireless access technology, or NR technology in an unlicensed frequency band (such as, the 5 GHz industrial, scientific and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices such as base stations 105 and UEs 115 can employ carrier sensing for conflict detection and avoidance. In some examples, operations in an unlicensed frequency band can be based on a carrier aggregation configuration (e.g., LAA) in conjunction with component carriers operating in a licensed frequency band. Operations in an unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0082] The base station 105 or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels 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 examples, antennas or antenna arrays associated with the base station 105 may be located in different geographic locations. The base station 105 may have an antenna array with multiple rows and columns of antenna ports, and the base station 105 may use the antenna array to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals sent via the antenna ports.

[0083] The base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation, and increase spectral efficiency by sending or receiving multiple signals via different spatial layers. Such technology can be referred to as spatial multiplexing. For example, multiple signals can be sent by a transmitting device via different antennas or different combinations of antennas. Similarly, multiple signals can be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) (wherein multiple spatial layers are sent to the same receiving device) and multi-user MIMO (MU-MIMO) (wherein multiple spatial layers are sent to multiple devices).

[0084] 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, a UE 115) to shape or control an antenna beam (e.g., a transmit beam, 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 some signals propagating at a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0085] The base station 105 or the UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the base station 105 in different directions. For example, the base station 105 may send signals based on different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by a transmitting device such as the base station 105, or a receiving device such as the UE 115) a beam direction for transmission or reception later performed by the base station 105.

[0086] Some signals, such as data signals associated with a particular receiving device, may be sent by base station 105 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 a single beam direction may be determined based on signals sent in one or more beam directions. For example, UE 115 may receive one or more of the signals sent by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 having the highest signal quality or otherwise acceptable signal quality.

[0087] In some examples, transmissions by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may generate a combined beam for transmission (e.g., from a base station 105 to a UE 115) using a combination of digital precoding or radio frequency beamforming. The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across a system bandwidth or one or more subbands. The base station 105 may send a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)) that may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).

[0088] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from the base station 105, the receiving device (e.g., UE 115) can try multiple reception configurations (e.g., directional listening). For example, the receiving device can try multiple reception directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different reception beamforming weight sets (e.g., different directional listening weight sets) applied to the signals received at multiple antenna elements of the antenna array, or by processing the received signals according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array, any of which can be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device can use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions).

[0089] The wireless communication system 100 can be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication at the bearer or packet data convergence protocol (PDCP) layer can be based on IP. The radio link control (RLC) layer can perform packet segmentation and reorganization to communicate on a logical channel. The medium access control (MAC) layer can perform priority processing, as well as multiplexing of logical channels to transport channels. The MAC layer can also use error detection technology, error correction technology, or both to support retransmission 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 between the UE 115 and the base station 105 or the core network 130 to support the radio bearer for user plane data. At the physical layer, the transport channel can be mapped to the physical channel.

[0090] UE 115 and base station 105 can support retransmission of data to increase the possibility that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the possibility that data is correctly received on communication link 125. HARQ can include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device can support HARQ feedback for the same time slot, wherein the device can provide HARQ feedback for data received in the previous symbol in the time slot in a specific time slot. In other cases, the device can provide HARQ feedback in a subsequent time slot, or according to some other time interval.

[0091] One or more base stations 105 may send semi-static control signaling based on the SPS configuration to schedule periodic downlink traffic. The configuration may include various parameters, such as periodicity, allocated resources, modulation and coding scheme (MCS), etc. The semi-static control signaling may also include SPS activation status information indicating whether the UE 115 is to activate the SPS configuration, and if so, which SPS configurations the UE 115 is to activate. The UE 115 may receive SPS transmissions (e.g., on the PDSCH) based on the configuration until the UE 115 is instructed to release the SPS configuration (e.g., via an SPS release control message that may be included in the DCI).

[0092] In the case where multiple base stations 105 are configuring UE 115 with SPS transmissions, UE 115 can determine the corresponding pool index associated with each base station 105. UE 115 can receive SPS PDSCH associated with the pool index value corresponding to the transmitting base station 105. In some examples, SPS PDSCH can overlap in time, frequency, or both. In such cases, UE 115 can determine which PDSCH(s) of the overlapping PDSCHs to decode based on the associated pool index value, SPS configuration index, priority level, or other considerations.

[0093] As an example, UE 115 can receive a first SPS PDSCH set associated with a first pool index and overlapping in time and a second SPS PDSCH set associated with a second pool index and overlapping in time. UE 115 can determine which overlapping SPS PDSCHs to abandon among those overlapping SPS PDSCHs associated with the first pool index and which overlapping SPS PDSCHs to abandon among those overlapping SPS PDSCHs associated with the second pool index. Once the overlapping SPS PDSCHs are resolved within each pool index, UE 115 can receive any surviving SPS PDSCHs. If the overlapping SPS PDSCHs are associated with different pool indexes (e.g., associated with different transmitting base stations 105) instead, UE 115 can receive all SPS PDSCHs.

[0094] In another example, UE 115 may receive an SPS PDSCH and a dynamic PDSCH that overlap in time. UE 115 may determine whether the SPS PDSCH transmission is received based on a pool index associated with the dynamic PDSCH. For example, if the dynamic PDSCH and SPS transmissions are associated with the same pool index (e.g., associated with the same transmitting base station 105), UE 115 may determine to receive only the dynamic PDSCH. However, if the dynamic PDSCH and SPS transmissions are associated with different pool indexes, UE 115 may determine to receive both transmissions. In some cases, UE 115 may receive an SPS PDSCH and one or more dynamic PDSCHs, and the SPS PDSCHs may overlap with each other and with the dynamic PDSCH in time, frequency, or both. In such cases, UE 115 may determine which SPS PDSCH in the overlapping SPS PDSCHs to receive, or as long as the two SPS PDSCHs are each associated with different pool indexes, it may be determined to receive two SPS PDSCHs. If the SPS PDSCH overlaps with the dynamic PDSCH in time and frequency, the UE 115 may determine whether the SPS PDSCH transmission is received based on the pool index associated with the dynamic PDSCH.

[0095] Figure 2 An example of a wireless communication system 200 that supports an SPS reception configuration for multiple downlink shared channels 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. For example, the wireless communication system 200 can include base stations 105-a and 105-b and UE 115-a, which can be respectively referred to herein as Figure 1 Examples of corresponding base stations 105 and UE 115 are described.

[0096] Base stations 105-a and 105-b may communicate with UE 115-a via communication links 205-a and 205-b, respectively. For example, base station 105-a may send dynamic control signaling 215 (e.g., DCI signaling) to schedule dynamic PDSCH 230. Base station 105-a may send semi-static control signaling 210 (e.g., RRC signaling) to configure UE 115-a with one or more SPS configurations. Semi-static control signaling 210 may include SPS activation status information indicating whether UE 115-a is to activate an SPS configuration, and if so, which SPS configurations UE 115-a is to activate. UE 115-a may receive semi-static control signaling 210 and determine to activate an SPS configuration including SPS PDSCH 220 based on the SPS activation status information. The base station 105-b may also send semi-static control signaling 210 and dynamic control signaling 215 for the SPS PDSCH 225 and dynamic PDSCH 230, respectively. In some cases, the semi-static control signaling 215 may indicate that the UE 115-a is to deactivate all SPS configurations or to refrain from activating any SPS resources based on the SPS activation status information.

[0097] The SPS configuration indicated by the semi-static control signaling 210 may be associated with an index value (e.g., an sps-ConfigIndex value) and may include various parameters. The SPS configuration may be activated by a DCI message (e.g., a cyclic redundancy check (CRC) scrambled with a configured scheduling radio network temporary identifier (CS-RNTI) and a new data indicator (NDI) set to 0). RRC signaling may indicate some parameters of the SPS configuration, while activation DCI may indicate other parameters. RRC signaling may indicate periodicity, the number of associated HARQ processes, and the like. In the activation DCI, the HARQ process number field may not be used, and therefore, the HARQ process number field may be replaced by an indication of the SPS configuration to be activated. The activation DCI may indicate the time and frequency resources used for each SPS PDSCH, as well as the MCS, time domain resource allocation (e.g., K1 value), and the like. SPS configuration activation may trigger SPS PDSCH transmission. UE 115 - a may receive SPS PDSCH transmissions based on the configured periodicity until another DCI releases the SPS configuration.

[0098] For example, the base station 105-a may send a DCI in the dynamic control signaling 215 to the UE 115-a to schedule the dynamic PDSCH 230. In some cases, the DCI may also activate an SPS configuration, which may trigger an SPS PDSCH associated with the configuration. For example, the UE 115-a may receive a DCI indicating the activation of a configuration associated with the SPS PDSCH 220. In either case, the DCI may be received via a CORESET. The CORESET may be associated with a pool index value, which may correspond to a sending base station (e.g., a base station 105-a). For example, a first DCI having a pool index value of 0 may correspond to a base station 105-a. The UE 115-a may determine the sending base station based on the pool index value. The CORESETs within a given pool index value may each have a CORESET ID. For example, the first and second CORESETs within a pool index value of 0 may have CORESET identifiers (IDs) of 1 and 2, respectively, and the first and second CORESETs within a pool index value of 1 may have CORESET IDs of 3 and 4, respectively. The pool index value of the CORESET in which the DCI is received may be used for various purposes, such as HARQ codebook construction and transmission, PDSCH scrambling, rate matching, etc.

[0099] The SPS PSDCH 220 or SPS PDSCH 225 may be associated with a pool index value corresponding to a transmitting base station. That is, each SPS PDSCH 220 or SPS PDSCH 225 may be associated with a pool index value of a CORESET in which a DCI is received to activate the SPS configuration. For example, the SPS PDSCH 220 may be associated with a pool index value of 0 corresponding to the base station 105-a, and the SPS PDSCH 225 may be associated with a pool index value of 1 corresponding to the base station 105-b. In some cases, the configuration for each SPS PDSCH 220 or SPS PDSCH 225 may also include periodicity (e.g., an SPS downlink interval). For example, the periodicity can be 2 OFDM symbols, 7 OFDM symbols, one time slot, 2 time slots, 4 time slots, 5 time slots, 8 time slots, 10 time slots, 16 time slots, 20 time slots, 32 time slots, 40 time slots, 64 time slots, 80 time slots, 128 time slots, 160 time slots, 320 time slots, 640 time slots, etc.

[0100] In some cases, the resources allocated by their corresponding base stations to SPS PDSCH 220, SPS PDSCH 225, and dynamic PDSCH 230 may overlap in time, frequency, or both. In such cases, UE 115-a may determine which (which) of the overlapping PDSCHs to decode based on the associated pool index value, SPS configuration index, priority level, or other factors. For example, UE 115-a may receive both SPS PDSCH 220 and SPS PDSCH 225 that overlap in time, provided that SPS PDSCH 220 is associated with a pool index value that is different from the pool index value of SPS PDSCH 225. Additionally or alternatively, if SPS PDSCH 220 overlaps with dynamic PDSCH 230 in time, and both are associated with the same pool index value, UE 115-a may determine to decode PDSCH 230 and abandon SPS PDSCH 220.

[0101] In some examples, UE 115-a may receive SPS PDSCHs of various SPS configurations but associated with the same pool index value. As a result, in a single time slot, overlap may occur between SPS PDSCHs of different SPS configurations (e.g., in time, frequency, or both). For example, UE 115-a may receive SPS PDSCH 220 (e.g., associated with a pool index value of 0) and SPS PDSCH 225 of a different SPS configuration (e.g., associated with a pool index value of 1), and the two SPS PDSCHs may overlap in time. UE 115-a may determine to decode SPS PDSCH 220 (e.g., based on the associated SPS configuration index value, priority level, etc.) and abandon SPS PDSCH 225. If UE 115-a receives overlapping SPS PDSCHs associated with a first pool index value and overlapping SPS PDSCHs associated with a second pool index value, and if the SPS PDSCHs also overlap across pool index values, UE 115-a can resolve the overlap between the SPS PDSCHs for the first pool index value separately from the overlap between the SPS PDSCHs for the second pool index value. After resolving the overlap within each pool index value, UE 115-a can determine which SPS PDSCH(s) to receive across pool index values.

[0102] If the SPS PDSCH 220, SPS PDSCH 225, and dynamic PDSCH 230 overlap in both time and frequency, the UE 115-a can resolve the overlapping PDSCH by first determining whether the DMRS symbols of the overlapping PDSCHs are aligned or whether the DMRS ports of the overlapping PDSCHs belong to different code division multiplexing (CDM) groups. If the DMRS symbols are not aligned or the DMRS ports belong to the same CDM group, the UE 115-a can decode only one of the overlapping PDSCHs (e.g., according to a rule) or can decode all of the overlapping PDSCHs. In some cases, the UE 115-a can determine to decode the dynamic PDSCH 230 and abandon the SPS PDSCHs 220 and 225.

[0103] Figure 3A , 3B 3C show examples of resource sets 301, 302, and 303 supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. In some examples, resource sets 301, 302, and 303 can implement aspects of wireless communication systems 100 and 200. For example, resource sets 301, 302, and 303 can be configured and sent by one or more base stations and can be received by a UE, and the base stations and UEs can refer to Figure 1 and 2 Examples of base stations 105 and UEs 115 are described.

[0104] One or more base stations may send one or more SPS configurations 305 to the UE for the resource set 300. Each SPS configuration 305 may include various parameters (e.g., periodicity, SPS configuration index, a set of time or frequency resources, etc.) and may be activated by a DCI message sent from the corresponding base station. For example, a first base station may send a message including an SPS configuration 305 indicating a set of time-frequency resources for PDSCH transmission 315 according to a periodicity. The base station may send a DCI message directing the UE to activate the SPS configuration 305, and the UE may start receiving the PDSCH 315 accordingly.

[0105] In some cases, a UE may be configured with multiple pool index values ​​so that a transmission from a base station (such as SPS configuration 305) may be associated with a pool index value corresponding to the base station. Figure 3A The resource collection 301 shown in the Figure 3BThe resource set 302 shown in is received by the UE at the same time. However, the resource set 301 may be received from a base station different from the base station that sends the resource set 302. As such, the SPS configuration 305 received on the resource set 301 may be associated with a pool index value different from the SPS configuration 305 received on the resource set 302. For example, Figure 3A A resource set 301 is shown for a set of SPS configurations 305 associated with a pool index value of 0, while Figure 3B A set of resources 302 for a second set of SPS configurations 305 associated with a pool index value of one is shown.

[0106] The UE may receive SPS downlink messages on the PDSCH 315 that occur at regular intervals (e.g., in the number of time slots 325) in each SPS 305. In some examples, the UE may receive multiple PDSCHs 315 from multiple SPS configurations 305 in a single time slot 325. For example, Figure 3A As shown in , the first SPS 305-a may be configured with a PDSCH 315 occurring every second time slot 325, the second SPS 305-b may be configured with a PDSCH 315 occurring every third time slot 325, and the third SPS 305-c may be configured with a PDSCH 315 occurring every fourth time slot 325. Similarly, Figure 3B An SPS 305-d configured with a PDSCH 315 occurring every third time slot, an SPS 305-e configured with a PDSCH 315 occurring every sixth time slot, and an SPS 305-f configured with a PDSCH 315 occurring every second time slot are shown. Thus, a UE may receive multiple PDSCHs 315 from various SPS configurations 305 and associated with various pool indices in a single time slot. Although a time slot 325 is shown for each SPS 305, it should be understood that the SPS 305 may include periodicity occurring at intervals of different lengths (e.g., other TTIs, mini-slots, etc.).

[0107] As described herein, a UE may receive SPS 305 associated with different pool index values, wherein, in a time slot, PDSCH 315 may overlap in time. For example, in time slot 325-a, PDSCH 315 from SPS 305-a overlaps in time with PDSCH 315 from SPS 305-b. Similarly, in time slot 325-b, PDSCH 315 from each of SPS 305-d, 305-e, and 305-f overlaps in time. In addition, in time slot 325-c, PDSCH 315 from SPS 305-b in resource set 301 overlaps in time with PDSCH 315 from SPS 305-d in resource set 302. The UE may resolve the conflict in the overlapping PDSCH 315 by first resolving the overlapping PDSCH 315 associated with the first pool index and then resolving the overlapping PDSCH 315 associated with the second pool index. For example, for each pool index value, the UE may select one or more PDSCHs 315 to be decoded from the set of overlapping PDSCHs 315, and may abandon other PDSCHs 315. The selection may be based on various conditions determined by the UE. The UE may receive PDSCHs 315 that overlap in time in a time slot 325, provided that the overlapping PDSCHs 315 are associated with different pool index values. For example, in a time slot 325-c, the UE may receive PDSCHs 315 of SPS 305-b (e.g., associated with a pool index value of 0) and PDSCHs 315 of SPS 305-d (e.g., associated with a pool index value of 1).

[0108] As an example, in the time slot 325-a of the resource set 301, the UE may first resolve the overlap within the symbols in the time slot 325-a (i.e., overlap in time). The UE may then determine the number of PDSCHs 315 in the time slot 325-a (e.g., two), and determine a set Q0 including the PDSCHs 315 in the time slot 325-a. In the set Q0, the UE may determine the SPS configuration index associated with each PDSCH 315. For example, the PDSCH 315 of the SPS 305-a may be configured with an SPS configuration index value of 0, and the PDSCH 315 of the SPS 305-c may be configured with an SPS configuration index value of 2. The UE may then select the PDSCH 315 in the time slot 325-a to receive based on the SPS configuration index value. As an example, the UE may select to receive the PDSCH 315 associated with the lowest SPS configuration index value (eg, the PDSCH 315 of the SPS 305 - a ). The UE may discard the unselected PDSCH 315 .

[0109] Similarly, the UE can resolve the overlapping PDSCH 315 in the time slot 325-b of the resource set 302. The PDSCH 315 from each of the SPS 305-d, 305-e and 305-f has been received in the time slot 325-b. The PDSCH 315 of the SPS 305-e overlaps in time with the PDSCH 315 from the SPS 305-d and the PDSCH 315 from the SPS 305-f. In this case, the UE can follow the same process as in the resource set 301. The UE can determine the set Q1 including the PDSCH 315 in the time slot 325-c, and can determine the SPS configuration index associated with each PDSCH 315 within Q1. As an example, the PDSCH 315 associated with SPS 305-d may have an SPS configuration index value of 0, the PDSCH 315 associated with SPS 305-e may have an SPS configuration index value of 1, and the PDSCH 315 associated with SPS 305-f may have an SPS configuration index value of 2. The UE may select to receive the PDSCH 315 associated with the lowest SPS configuration index value (e.g., the PDSCH 315 associated with SPS 305-d) in time slot 325-b.

[0110] After receiving the selected PDSCH 315, the UE may remove the selected PDSCH 315 and any PDSCH 315 that overlaps with the selected PDSCH 315 from set Q1. In this example, the UE may choose to receive the PDSCH 315 associated with SPS 305-d, and may remove the PDSCH 315 from set Q1. The UE may also remove the PDSCH 315 associated with SPS 305-e in time slot 325-b because it overlaps in time with the selected PDSCH 315. The UE may not decode the PDSCH 315 associated with SPS 305-e. After removal, set Q1 includes only the PDSCH 315 associated with SPS 305-f, which does not overlap in time with the remaining PDSCH 315. In this way, the PDSCH associated with SPS 305-f may be decoded by the UE.

[0111] The UE may be able to support a maximum number of unicast PDSCHs per index pool value in a time slot, and may indicate this capability to the base station (e.g., via UE capability signaling). For example, the UE may indicate to the base station that the UE is able to receive four unicast PDSCHs per pool index in a time slot. Alternatively, the UE may indicate the total number of PDSCHs that the UE is able to receive in the time slot, and the number of PDSCHs per pool index value in the time slot may be inferred from the total number. In the case where the UE supports a maximum number of PDSCHs 315 in a time slot 325, the UE may determine the PDSCH 315 to be decoded based on the maximum number. For example, the UE may determine to abandon the PDSCH 315 based on the techniques described herein until the number of PDSCHs 315 selected for decoding is equal to or less than the maximum number of PDSCHs 315 supported by the UE in the time slot.

[0112] In some cases, one or more PDSCHs 315 received in a time slot may be associated with a priority value or a priority index. In addition to the above techniques, the UE may use the priority value when determining which PDSCHs 315 to decode or discard within a set Q0 or Q1. For example, in a time slot 325-a (e.g., set Q0), the PDSCH 315 of SPS 305-a may be associated with a lower priority than the PDSCH 315 of SPS 305-b, and the UE may therefore determine to decode the PDSCH 315 of SPS 305-b and may discard the PDSCH 315 of SPS 305-a.

[0113] Although the examples described herein are described with two or three PDSCHs 315 overlapping in time, the UE may perform the above process for any number of overlapping PDSCHs. The UE may determine a set Q including the overlapping PDSCHs 315. i , and the first PDSCH can be selected based on its associated SPS configuration index. The UE can then select the first PDSCH from the set Q i The UE may remove the selected PDSCH 315 and the PDSCH 315 that overlaps with the selected PDSCH 315 in time from the set Q. The UE may repeat the process until the set Q is i The number of PDSCHs 315 received in a time slot is equal to zero, or until the number of PDSCHs 315 received in a time slot is equal to the number of unicast PDSCHs that the UE can receive in a single time slot.

[0114] Figure 3CAn example of a resource set 303 including PDSCHs 315 associated with SPS configurations 305-a to 305-f is shown after the UE has resolved conflicting PDSCHs 315 that overlap in time and are associated with the same pool index value. It is important to note that slot 325-c includes a PDSCH 315 associated with SPS 305-d and a PDSCH 315 associated with SPS 305-b. Although these two PDSCHs 315 overlap in time in slot 325-c, the UE can decode both because each PDSCH 315 is associated with a different pool index value.

[0115] Figure 4A , 4B 4C show examples of resource sets 401, 402, and 403 supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. In some examples, resource sets 401, 402, and 403 can implement aspects of wireless communication systems 100 and 200. For example, resource sets 401, 402, and 403 can be configured and sent by one or more base stations and can be received by a UE, and the base stations and UEs can refer to Figure 1 and 2 Examples of base stations 105 and UEs 115 are described.

[0116] As described herein, one or more base stations may send one or more SPS configurations 405 to a UE for a resource set 400. Each SPS configuration 405 may include various parameters (e.g., periodicity, SPS configuration index, a set of time or frequency resources, etc.) and may be activated by a DCI message sent from a corresponding base station. Each SPS configuration 405 may be associated with a pool index value corresponding to the sending base station. For example, Figure 4A The resource collection 401 shown in the Figure 4B The resource set 402 shown in is received at the same time, but from different base stations. Thus, the SPS configuration 405 received in resource set 401 may be associated with a pool index value of 0, while the SPS configuration 405 received in resource set 402 may be associated with a pool index value of 1.

[0117] The UE may receive SPS downlink messages on PDSCH 415 that occur at regular intervals (e.g., in the number of time slots 425) in each SPS 405. In some examples, the UE may additionally receive a dynamic PDSCH 420 dynamically scheduled by a PDCCH transmission from the base station (e.g., via a DCI message). Figure 4AAs shown in , the UE may receive a first SPS 405-a that may be configured with a PDSCH 415 that occurs every second time slot 425, a second SPS 405-b that may be configured with a PDSCH 415 that occurs every third time slot 425, and a third SPS 405-c that may be configured with a PDSCH 415 that occurs every fourth time slot 425, as well as a dynamic PDSCH 420-a received in time slot 425-a and a dynamic PDSCH 420-b received in time slot 425-b. Similarly, Figure 4B An SPS 405-d configured with a PDSCH 415 occurring every third time slot, an SPS 405-e configured with a PDSCH 415 occurring every sixth time slot, and an SPS 405-f configured with a PDSCH 415 occurring every second time slot, as well as a dynamic PDSCH 420-c received in a time slot 425-c are shown. Thus, in addition to one or more dynamic PDSCHs 420, a UE may receive multiple PDSCHs 415 from various SPS configurations 405 and associated with various pool indices in a single time slot. Although in Figures 4A-4C A time slot 425 is shown in FIG. 4 , but it should be understood that SPS 405 may include periodicity occurring at intervals of different lengths (eg, other TTIs, mini-slots, etc.).

[0118] In some examples, a dynamic PDSCH 420 received in the same time slot as one or more SPS PDSCHs 415 may overlap in time with the SPS PDSCH 415. For example, in time slot 425-a, the UE may receive the SPS PDSCH 415 associated with the SPS 405-a and the dynamic PDSCH 420-a, wherein both the PDSCH 415 and 420-a overlap in time. The UE may determine to receive only the dynamic PDSCH 420-a and may cancel the PDSCH 415. The UE may cancel the PDSCH 415 if the DCI message scheduling the dynamic PDSCH 420-a ends before a threshold number of symbols (e.g., 14 symbols) of the start of the SPS PDSCH 415.

[0119] In some cases, the dynamic PDSCH 420 associated with the first pool index value may overlap in time with the SPS PDSCH 415 associated with the second pool index value. For example, in time slot 425-c, the PDSCH 415 of the SPS 405-b overlaps in time with the dynamic PDSCH 420-c. In this case, since the PDSCH 415 and the PDSCH 420-c correspond to different pool index values, the UE may receive both the PDSCH 415 and the PDSCH 420-c.

[0120] In some examples, the UE may receive, in a single time slot, SPS PDSCHs 415 that overlap in time with each other and one or more dynamic PDSCHs 420 that overlap in time with one or more of the SPS PDSCHs 415. For example, time slot 425-b includes PDSCH 415-b that overlaps in time with PDSCH 415 of SPS 405-a and dynamic PDSCH 420-b. In such a case, the UE may first resolve the overlapping SPS PDSCH 415 (as described in FIG. 3), and may then proceed to resolve the overlap between SPS PDSCH 415 and dynamic PDSCH 420. For example, in time slot 425-b, the UE may determine to receive SPS PDSCH 415 of SPS 405-a, and may discard SPS PDSCH 415 of SPS 405-b. The UE may then determine whether to receive one or both of the PDSCH 415 of the SPS 405-a and the dynamic PDSCH 420-b. For example, the UE may decode the dynamic PDSCH 420-b and discard the PDSCH 415 of the SPS 405-a.

[0121] Figure 4C An example of a resource set 403 including PDSCH 415 associated with SPS configurations 405-a to 405-f and a dynamic PDSCH 420 is shown after the UE has resolved conflicting PDSCHs 415 and 420 that overlap in time. It is important to note that time slot 425-c includes PDSCH 415 associated with SPS 405-b and dynamic PDSCH 420-c. Although in time slot 425-c, PDSCH 415 of SPS 405-b overlaps in time with dynamic PDSCH 420-c, the UE can decode both because each PDSCH is associated with a different pool index value.

[0122] Figure 5A , 5B 5C show examples of resource sets 501, 502, and 503 supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. In some examples, resource sets 501, 502, and 503 can implement aspects of wireless communication systems 100 and 200. For example, resource sets 501, 502, and 503 can be configured and sent by one or more base stations and can be received by a UE, and the base stations and UEs can refer to Figure 1 and 2 Examples of base stations 105 and UEs 115 are described.

[0123] As described herein, one or more base stations may send one or more SPS configurations 505 to a UE for a resource set 500. Each SPS configuration 505 may include various parameters (e.g., periodicity, SPS configuration index, a set of time or frequency resources, etc.) and may be activated by a DCI message sent from a corresponding base station. Each SPS configuration 505 may be associated with a pool index value corresponding to the sending base station. For example, Figure 5A The resource collection 501 shown in the Figure 5B The resource set 502 shown in is received at the same time, but from different base stations. Thus, the SPS configuration 505 received in resource set 501 may be associated with a pool index value of 0, while the SPS configuration 505 received in resource set 502 may be associated with a pool index value of 1.

[0124] The UE may receive SPS downlink messages on PDSCH 515 that occur at regular intervals (e.g., in the number of time slots 525) in each SPS 505. In some examples, the UE may additionally receive a dynamic PDSCH 520 dynamically scheduled by a PDCCH transmission from the base station (e.g., via a DCI message). Figure 5A As shown in , the UE may receive a first SPS 505-a that may be configured with a PDSCH 515 that occurs in each time slot 525, a second SPS 505-b that is configured with a PDSCH 515 that occurs every third time slot 525, and a third SPS 505-c that is configured with a PDSCH 515 that occurs every fourth time slot 525, and a dynamic PDSCH 520 received in a time slot 525-d. Similarly, Figure 5B An SPS 505-d is shown configured with a PDSCH 515 that occurs every third time slot, an SPS 505-e is configured with a PDSCH 515 that occurs every sixth time slot, and an SPS 505-f is configured with a PDSCH 515 that occurs every second time slot. Thus, in addition to one or more dynamic PDSCHs 520, a UE may receive multiple PDSCHs 515 from various SPS configurations 505 and associated with various pool indices in a single time slot. Figures 5A-5C A time slot 525 is shown in FIG. 5 , but it should be understood that SPS 505 may include periodicity occurring at intervals of different lengths (eg, other TTIs, mini-slots, etc.).

[0125] In some examples, the UE may receive PDSCH 515 that overlaps in time, frequency, or both in a single time slot 525. For example, in time slots 525-a, 525-c, and 525-e, the PDSCH 515 of SPS 505-a overlaps with the PDSCH 515 of SPS 505-b. In addition, the PDSCH of SPS 505-b in resource set 501 overlaps in time and frequency with the PDSCH 515 of SPS 505-e in resource set 502. Similarly, in each time slot 525, the PDSCH 515 of SPS 505-a overlaps in frequency with the PDSCH 515 of SPS505-d. In such cases, the UE may first resolve the overlap between PDSCHs associated with the same pool index value (as described in FIG. 3), and may then proceed to resolve the overlap between PDSCHs 515 associated with different pool index values. For example, the UE may determine which PDSCH 515 to decode between the PDSCH 515 of the SPS 505-a and the PDSCH 515 of the SPS 505-b. The UE may select the PDSCH 515 of the SPS 505-b because it may have a lower SPS configuration index than the PDSCH 515 of the SPS 505-a. Therefore, the PDSCH 515 of the SPS 505-a may be dropped by the UE.

[0126] The UE may then resolve the time-frequency overlap between the PDSCH 515 of SPS 505-b and the PDSCH 515 of SPS 505-e. In some cases, the UE may first determine whether the DMRS symbols of the overlapping PDSCH 515 are aligned, or whether the DMRS ports of the overlapping PDSCH 515 belong to different CDM groups. If the DMRS symbols are not aligned or the DMRS ports belong to the same CDM group, the UE may decode only one of the two overlapping PDSCHs 515. The UE may determine which PDSCH to decode according to a rule. For example, the UE may decode the PDSCH 515 associated with a pool index value of 0 (e.g., the PDSCH 515 of SP 505-b), and may abandon other PDSCHs 515 (e.g., the PDSCH 515 of SPS 505-e). In some cases, despite the overlap, the UE may alternatively determine to decode the two PDSCHs 515. For example, the PDSCH 515 of SPS 505 - d in resource set 2 overlaps in frequency with the PDSCH 515 of SPS 505 - a in resource set 1 , and the UE may determine to decode both PDSCHs 515 .

[0127] In time slot 525-b, the PDSCH 515 of SPS 505-d overlaps in time with the PDSCH 515 of SPS 505-e, and overlaps in frequency with the PDSCH 515 of SPS 505-a. In this case, the UE may resolve the time overlap between the PDSCHs 515 associated with the first pool index (e.g., as described in FIG. 3). For example, the UE may first resolve the overlap between the PDSCHs 515 associated with the pool index of 1, and may determine to decode the PDSCH 515 of SPS 505-d (e.g., because SPS 505-d has a lower SPS configuration index than SPS 505-e). The UE may then proceed to resolve frequency overlap across pool indices (e.g., before proceeding to resolve any overlap between PDSCHs 515 associated with the second pool index value), and may select between the PDSCH 515 of SPS 505-d and the PDSCH 515 of SPS 505-a. The selection may be made according to a rule. For example, the UE may select the PDSCH 515 of SPS 505-a instead of the PDSCH 515 of SPS 505-d based on the associated pool index value. The UE may then resolve other remaining time overlaps that occur between the PDSCHs 515 of the second pool index value.

[0128] In some cases, the UE may receive the dynamic PDSCH 520 in the same time slot as one or more SPS PDSCHs 515. The dynamic PDSCH 520 may overlap in time, frequency, or both with the SPS PDSCH 515 or multiple SPS PDSCHs 515. For example, in time slot 525-d, the UE may receive the PDSCH 515 of SPS 505-a, the PDSCH 515 of SPS 505-e, and the PDSCH 515 of SPS 505-f, as well as the dynamic PDSCH 520. The dynamic PDSCH 520 may overlap in time with the PDSCH 515 of SPS 505-a, and may overlap in frequency with the PDSCH 515 of SPS 505-e.

[0129] The UE may first proceed to resolve the time overlap between the PDSCH 515 of the SPS 505-a and the dynamic PDSCH 520. The UE may, for example, determine that only the dynamic PDSCH 520 is received and may cancel the PDSCH 515. The UE may cancel the PDSCH 515, provided that the DCI message scheduling the dynamic PDSCH 520 ends before a threshold number of symbols (e.g., 14 symbols) of the start of the SPS PDSCH 515. The UE may then resolve the frequency overlap between the SPS PDSCH 515 of the SPS 505-e and the dynamic PDSCH 520. In some cases, the UE may first determine whether the DMRS symbols of the overlapping PDSCH 515 are aligned or whether the DMRS ports of the overlapping PDSCH 515 belong to different CDM groups. If the DMRS symbols are not aligned or the DMRS ports belong to the same CDM group, the UE may decode only one of the two overlapping PDSCHs 515. For example, if the DCI scheduling the dynamic PDSCH 520 ends before the threshold number of symbols of the start of the SPS PDSCH 515, the UE can determine to abandon the SPS PDSCH 515 and can decode the dynamic PDSCH 520. However, in some other cases, the UE can decode both the PDSCH 515 and the dynamic PDSCH 520 under the condition that the PDSCH is associated with different pool index values.

[0130] Figure 5CAn example of a resource set 503 including PDSCH 515 associated with SPS configurations 505-a to 505-f and a dynamic PDSCH 520 is shown after the UE has resolved conflicting PDSCHs 515 and 520 that overlap in time and frequency within a time slot. In time slot 525-a, the UE has resolved the time overlap between PDSCH 515 in resource set 501 and the frequency overlap between PDSCH 515 across resource sets 501 and 502; therefore, the UE receives PDSCH 515 of SPS 505-b and PDSCH 515 of SPS 505-f. In time slot 525-b, the UE has resolved the time overlap between PDSCH 515 in resource set 502 and the frequency overlap between PDSCH 515 across resource sets 501 and 502, and receives PDSCH 515 of SPS 505-a, 505-c, and 505-f. Similarly, in time slots 525-c and 525-e, the UE receives the PDSCH 515 of SPS 505-b after resolving the time overlap between the PDSCH 515 of SPS 505-b and SPS 505-a. In these four time slots, the UE resolves the overlap and avoids receiving the PDSCH 515 that overlaps in time and frequency. Alternatively, in time slot 525-d, the UE resolves the time and frequency overlap between the dynamic PDSCH 520 in resource set 501 and the PDSCH 515 of SPS 505-e in resource set 502. In this time slot 525-d, although the PDSCHs overlap in time and frequency, the UE can still receive both PDSCHs (e.g., because each PDSCH is associated with a different pool index value).

[0131] Figure 6 An example of a process flow 600 for supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. In some examples, the process flow 600 can implement aspects of the wireless communication system 100 or 200. The process flow 600 can include a UE 115-b, a base station 105-c, and a base station 105-d, which can be examples of corresponding devices described herein. Alternative examples below can be implemented in which some processes are performed in a different order than described, or are not performed at all. In some cases, the process may include additional features not mentioned below, or additional processes or operations may be added.

[0132] At 605, UE 115-b may optionally send a capability indication to one or both of base station 105-c and base station 105-d. The capability indication may indicate the number of PDSCH messages that UE 115-b is capable of receiving at a given time. For example, the capability indication may indicate that UE 115-b is capable of receiving 3, 4, 7, etc. PDSCH messages at a given time. In some cases, the capability indication may be a specific pool index, such that UE 115-b indicates the number of PDSCH messages that can be received for a first pool index (e.g., a pool index of 1) and a second number of PDSCH messages that can be received for a second pool index (e.g., a pool index of 0). Additionally or alternatively, the capability indication may indicate the total number of PDSCH messages that can be received by UE 115-b at a given time for all pool indexes.

[0133] At 610, base station 105-c may send one or more SPS activation messages. The SPS activation message may be included in a DCI carried by a PDCCH for UE 115-b. Each SPS activation message may trigger activation of an SPS configuration for UE 115-b from a set of SPS configurations for UE 115-b. Each triggered SPS configuration may be associated with an SPS configuration index, and a given pool index corresponding to a base station (e.g., base station 105-c) that performs transmission of the PDSCH associated with the SPS configuration.

[0134] At 615, after receiving one or more SPS activation messages, UE 115-b may activate one or more SPS configurations corresponding to the received SPS configuration messages. Activating a given SPS configuration may be based on an SPS configuration index associated with the SPS configuration and may indicate a set of time-frequency resources for a set of SPS PDSCH messages to be sent by base station 105-c to UE 115-b.

[0135] At 620, one or more of base stations 105-c and 105-d may send one or more control messages to UE 115-b. For example, at 620-a, base station 105-c may send one or more control messages to UE 115-b, and optionally, at 620-b, base station 105-d may send one or more control messages to UE 115-b. Each control message may indicate one or more PDSCH transmissions for UE 115-b, and may be associated with a given pool index, respectively, depending on which base station sent the control message. For example, the control message may be a DCI from one of base station 105-c or base station 105-d that dynamically schedules PDSCH for UE 115-b. Alternatively, the control message may be an SPS activation message from one of base station 105-c or base station 105-d that triggers activation of an SPS configuration for UE 115-b. In such a case, after receiving the one or more control messages at 620, UE 115-b may identify a plurality of PDSCHs for UE 115-b and corresponding time-frequency resources for each of the plurality of PDSCHs.

[0136] At 625, UE 115-b may determine which of the PDSCHs to receive from the multiple PDSCHs associated with the SPS configuration activated at 615 and the one or more control messages at 620. In some examples, as described herein, UE 115-b may determine to receive the SPS PDSCH or dynamic PDSCH based on a pool index value or priority level associated with the SPS PDSCH or dynamic PDSCH. Additionally or alternatively, as described herein, UE 115-b may determine to receive the SPS PDSCH or dynamic PDSCH based on whether the SPS PDSCH or dynamic PDSCH and another SPS PDSCH or dynamic PDSCH associated with the same or different pool index overlap in time or frequency. In some cases, UE 115-b may avoid receiving one or more PDSCHs, or may receive all PDSCHs for UE 115-b. In addition, UE 115-b may be able to receive a number of PDSCHs indicated by the capability indication sent at 605, and may receive a number of PDSCHs that are capable of being received by UE 115-b.

[0137] At 630, as described herein, base station 105-c and base station 105-d may send one or more PDSCHs based on the determination at 625, and UE 115-b may receive the one or more PDSCHs. For example, at 630-a, UE 115-b may receive an SPS PDSCH, a dynamic PDSCH, or both from base station 105-c. At 630-b, UE 115-b may receive an SPS PDSCH, a dynamic PDSCH, or both from base station 105-d.

[0138] Implementing one or more aspects of process flow 600 may allow for reliable uplink transmissions from UE 115 - b to base station 105 - c with reduced beam reliability.

[0139] Figure 7 A block diagram 700 of a device 705 supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of a UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0140] The receiver 710 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 SPS reception configuration for multiple downlink shared channels, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The receiver 710 may utilize a single antenna or a collection of antennas.

[0141] The communication manager 715 may activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with the first pool index; receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with the second pool index; determine whether to receive at least one downlink shared channel or the second downlink shared channel in the set of downlink shared channels based on a time overlap of the set of downlink shared channels with the second downlink shared channel; and receive at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both based on the determination. The communication manager 715 may be an example of aspects of the communication manager 1010 described herein.

[0142] The communication manager 715 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 715 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0143] The communication manager 715 or its subcomponents may be physically located at various locations, including being distributed so that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 715 or its subcomponents may be combined with one or more other hardware components, including, but not limited to, input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0144] The transmitter 720 may transmit signals generated by other components of the device 705. In some examples, the transmitter 720 may be co-located with the receiver 710 in a transceiver module. For example, the transmitter 720 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The transmitter 720 may utilize a single antenna or a collection of antennas.

[0145] In some examples, the communication manager 715 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 710 and transmitter 720 may be implemented as analog components (e.g., amplifiers, filters, antennas) coupled with the mobile device modem to enable wireless transmission and reception on one or more frequency bands.

[0146] The communication manager 715 described herein can be implemented to achieve one or more potential advantages. One implementation can allow the device 705 to resolve time overlaps between downlink shared channels. The communication manager 715 can use the techniques described herein to determine which (if any) of the overlapping downlink shared channels to receive. Based on the techniques, the device 705 can avoid losing or unsuccessfully decoding overlapping transmissions.

[0147] In this way, device 705 can receive the downlink shared channel with improved reliability and, therefore, communicate on the channel with a greater likelihood of successful communication. In some examples, based on the greater likelihood of successful communication, device 705 can more efficiently power a processor or one or more processing units associated with sending and receiving communications, which can enable the device to save power and extend battery life.

[0148] Figure 8 A block diagram 800 of a device 805 supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. The device 805 may be an example of aspects of the device 705 or UE 115 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 840. The device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0149] The receiver 810 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 SPS reception configuration for multiple downlink shared channels, etc.). The information may be passed to other components of the device 805. The receiver 810 may be a reference Fig.10 Examples of aspects of the described transceiver 1020. The receiver 810 may utilize a single antenna or a collection of antennas.

[0150] The communication manager 815 may be an example of aspects of the communication manager 715 as described herein. The communication manager 815 may include an activation manager 820, a control message receiver 825, an overlap determination component 830, and a shared channel receiver 835. The communication manager 815 may be an example of aspects of the communication manager 1010 as described herein.

[0151] The activation manager 820 may activate a set of SPS configurations for a downlink shared channel set for the UE, the downlink shared channel set being associated with the first pool index.

[0152] The control message receiver 825 may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with the second pool index.

[0153] The overlap determining component 830 may determine whether to receive at least one downlink shared channel in the set of downlink shared channels or the second downlink shared channel based on a temporal overlap of the set of downlink shared channels with the second downlink shared channel.

[0154] The shared channel receiver 835 may receive at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both based on the determination.

[0155] The transmitter 840 can transmit signals generated by other components of the device 805. In some examples, the transmitter 840 can be co-located with the receiver 810 in a transceiver module. For example, the transmitter 840 can be a reference Fig.10 Examples of aspects of the described transceiver 1020. The transmitter 840 may utilize a single antenna or a collection of antennas.

[0156] Fig. 9 A block diagram 900 of a communication manager 905 supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. The communication manager 905 can be an example of aspects of the communication manager 715, the communication manager 815, or the communication manager 1010 described herein. The communication manager 905 can include an activation manager 910, a control message receiver 915, an overlap determination component 920, a shared channel receiver 925, an indexing component 930, a priority component 935, an avoidance component 940, an overlap component 945, and an indication transmitter 950. Each of these modules can communicate with each other directly or indirectly (e.g., via one or more buses).

[0157] The activation manager 910 may activate a set of SPS configurations for a downlink shared channel set for the UE, the downlink shared channel set being associated with the first pool index.

[0158] In some examples, activation manager 910 may activate a second SPS configuration set for a second downlink shared channel set associated with a second pool index and including a second downlink shared channel based on the control message and one or more additional control messages.

[0159] In some examples, activation manager 910 may activate a second SPS configuration set for a second downlink shared channel set associated with a second pool index and including a second downlink shared channel based on the control message and one or more additional control messages.

[0160] The control message receiver 915 may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with the second pool index.

[0161] The overlap determining component 920 may determine whether to receive at least one downlink shared channel in the set of downlink shared channels or the second downlink shared channel based on a temporal overlap of the set of downlink shared channels with the second downlink shared channel.

[0162] The shared channel receiver 925 may receive at least one downlink shared channel in the downlink shared channel set, the second downlink shared channel, or both based on the determination. In some examples, the shared channel receiver 925 may receive the second downlink shared channel based on the second downlink shared channel being dynamically scheduled by a control message.

[0163] In some examples, the shared channel receiver 925 may receive a downlink shared channel or a second downlink shared channel according to a set of rules based on a downlink shared channel in the downlink shared channel set at least partially overlapping with the second downlink shared channel in both time and frequency.

[0164] In some examples, the shared channel receiver 925 can receive both a downlink shared channel and a second downlink shared channel based on a downlink shared channel in the downlink shared channel set at least partially overlapping with the second downlink shared channel in both time and frequency, wherein the first pool index is different from the second pool index.

[0165] In some examples, the shared channel receiver 925 may receive both a downlink shared channel and a second downlink shared channel in the set of downlink shared channels based on the first pool index being different from the second pool index. In some examples, the shared channel receiver 925 may receive the second downlink shared channel based on the second downlink shared channel at least partially overlapping with at least one downlink shared channel in the set of downlink shared channels in both time and frequency.

[0166] In some examples, the shared channel receiver 925 can receive at least one downlink shared channel and a second downlink shared channel in the downlink shared channel set based on the second downlink shared channel at least partially overlapping with at least one downlink shared channel in the downlink shared channel set in both time and frequency. In some examples, the shared channel receiver 925 can receive at least one downlink shared channel in the downlink shared channel set and the second downlink shared channel independently of the alignment between the DMRS symbol of the downlink shared channel and the DMRS symbol of the second downlink shared channel and independently of the one or more DMRS ports of the downlink shared channel and the one or more DMRS ports of the second downlink shared channel belonging to the same DMRS CDM group. In some examples, the shared channel receiver 925 can determine to receive one or more downlink shared channels or the second downlink shared channel in the downlink shared channel set based on the number of shared channels that can be received by the UE. In some examples, the second downlink shared channel is associated with a downlink shared channel scheduled semi-persistently.

[0167] In some cases, the set of rules indicates that only a downlink shared channel associated with a given pool index is to be received by the UE based on DMRS misalignment of the downlink shared channel and the second downlink shared channel.

[0168] In some cases, the set of rules indicates that only a downlink shared channel associated with a given pool index is to be received by the UE based on one or more DMRS ports of the downlink shared channel and one or more DMRS ports of the second downlink shared channel belonging to the same DMRS CDM group.

[0169] Indexing component 930 may determine to receive the first downlink shared channel over the third downlink shared channel based on the SPS configuration index associated with the first downlink shared channel being lower than the SPS configuration index associated with a third downlink shared channel in the set of downlink shared channels.

[0170] In some examples, the index component 930 can determine to receive the second downlink shared channel over the third downlink shared channel based on the SPS configuration index associated with the second downlink shared channel being lower than the SPS configuration index associated with the third downlink shared channel in the second downlink shared channel set.

[0171] In some examples, the index component 930 can determine to receive the first downlink shared channel over the third downlink shared channel based on the SPS configuration index associated with the first downlink shared channel being lower than the SPS configuration index associated with the third downlink shared channel in the downlink shared channel set.

[0172] The priority component 935 may determine to receive the first downlink shared channel over the third downlink shared channel based on the priority of the first downlink shared channel being higher than the priority of the third downlink shared channel in the set of downlink shared channels. In some examples, the priority component 935 may determine to receive the second downlink shared channel over the third downlink shared channel based on the priority of the second downlink shared channel being higher than the priority of the third downlink shared channel in the set of second downlink shared channels.

[0173] The avoiding component 940 may determine to avoid receiving one or more downlink shared channels in the set of downlink shared channels based on the second downlink shared channel at least partially overlapping in time with one or more downlink shared channels in the set of downlink shared channels, wherein the second pool index is the same as the first pool index.

[0174] In some examples, avoiding component 940 may determine to avoid receiving one or more downlink shared channels in the second set of downlink shared channels based on one or more downlink shared channels in the second set of downlink shared channels at least partially overlapping in time or frequency with the first downlink shared channel.

[0175] In some examples, DMRS symbols of the first downlink shared channel and one or more downlink shared channels in the second downlink shared channel set are not aligned. In some examples, one or more DMRS ports of the first downlink shared channel and one or more DMRS ports of one or more downlink shared channels in the second downlink shared channel set belong to the same DMRS CDM group.

[0176] In some examples, avoiding component 940 can avoid receiving at least one downlink shared channel in the set of downlink shared channels.

[0177] In some examples, DMRS symbols of the downlink shared channel and the second downlink shared channel are not aligned.In some examples, one or more DMRS ports of the downlink shared channel and one or more DMRS ports of the second downlink shared channel belong to the same DMRS CDM group.

[0178] In some cases, a start symbol of one or more downlink shared channels in the downlink shared channel set is spaced a threshold number of symbols from the end of the control message. In some cases, a start symbol of at least one downlink shared channel is spaced a threshold number of symbols from the end of the control message.

[0179] The overlapping component 945 can determine that the fourth downlink shared channel is received over the fifth downlink shared channel based on the SPS configuration index associated with the fourth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set being lower than the SPS configuration index associated with the fifth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set.

[0180] The indication transmitter 950 may send an indication of the number of shared channels that can be received by the UE. In some cases, the indication includes a first number of shared channels of a first pool index that can be received by the UE. In some cases, the indication includes a second number of shared channels of a second pool index that can be received by the UE.

[0181] Fig.10 A schematic diagram of a system 1000 including a device 1005 supporting an SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure is shown. The device 1005 may be an example of the device 705, device 805, or UE 115 described herein, or include a component of the device 705, device 805, or UE 115. The device 1005 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may be in electrical communication via one or more buses (e.g., bus 1045).

[0182] The communication manager 1010 can activate a set of SPS configurations for a downlink shared channel set for the UE, wherein the downlink shared channel set is associated with a first pool index; receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, wherein the second downlink shared channel is associated with a second pool index; determine whether to receive at least one downlink shared channel or a second downlink shared channel in the downlink shared channel set based on a time overlap between the downlink shared channel set and the second downlink shared channel; and receive at least one downlink shared channel, a second downlink shared channel, or both in the downlink shared channel set based on the determination.

[0183] I / O controller 1015 can manage input and output signals for device 1005. I / O controller 1015 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1015 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1015 can utilize an operating system, such as, MS- MS- Or another well-known operating system. In other cases, I / O controller 1015 can represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1015 can be implemented as part of a processor. In some cases, a user can interact with device 1005 via I / O controller 1015 or via hardware components controlled by I / O controller 1015.

[0184] As described herein, the transceiver 1020 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, the transceiver 1020 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1020 can also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0185] In some cases, a wireless device may include a single antenna 1025. However, in some cases, a device may have more than one antenna 1025, which may be capable of sending or receiving multiple wireless transmissions simultaneously.

[0186] Memory 1030 may include RAM and ROM. Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1030 may contain BIOS (among other devices) that may control basic hardware and software operations (such as interaction with peripheral components or devices).

[0187] Processor 1040 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 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks supporting SPS reception configuration for multiple downlink shared channels).

[0188] The code 1035 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communications. The code 1035 may be stored in a non-transitory computer-readable medium (such as a system memory or other type of memory). In some cases, the code 1035 may not be directly executable by the processor 1040, but may cause a computer (e.g., when compiled or executed) to perform the functions described herein.

[0189] Fig.11 1 is a flow chart of a method 1100 for supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. The operations of the method 1100 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1100 may be implemented by the UE 115 or components thereof as described herein. Figures 7 to 10 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0190] At 1105, the UE may activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with the first pool index. The operations of 1105 may be performed according to the methods described herein. In some examples, aspects of the operations of 1105 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0191] At 1110, the UE may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index. The operations of 1110 may be performed according to the methods described herein. In some examples, aspects of the operations of 1110 may be described with reference to Figures 7 to 10 The control message receiver is executed.

[0192] At 1115, the UE may determine whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based on the time overlap between the downlink shared channel set and the second downlink shared channel. The operations of 1115 may be performed according to the methods described herein. In some examples, aspects of the operations of 1115 may be described with reference to Figures 7 to 10 The overlap determination component is used to perform the above operation.

[0193] At 1120, the UE may receive at least one downlink shared channel in the set of downlink shared channels, a second downlink shared channel, or both based on the determination. The operations of 1120 may be performed according to the methods described herein. In some examples, aspects of the operations of 1120 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0194] Fig.12 1 is a flow chart of a method 1200 for supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. The operations of the method 1200 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1200 may be implemented by the UE 115 or components thereof as described herein. Figures 7 to 10 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0195] At 1205, the UE may activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with the first pool index. The operations of 1205 may be performed according to the methods described herein. In some examples, aspects of the operations of 1205 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0196] At 1210, the UE may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index. The operations of 1210 may be performed according to the methods described herein. In some examples, aspects of the operations of 1210 may be described with reference to Figures 7 to 10 The control message receiver is executed.

[0197] At 1215, the UE may activate a second SPS configuration set for a second downlink shared channel set associated with a second pool index and including a second downlink shared channel based on the control message and the one or more additional control messages. The operations of 1215 may be performed according to the methods described herein. In some examples, aspects of the operations of 1215 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0198] At 1220, the UE may determine whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based on the time overlap between the downlink shared channel set and the second downlink shared channel. The operation of 1220 may be performed according to the methods described herein. In some examples, aspects of the operation of 1220 may be described with reference to Figures 7 to 10 The overlap determination component is used to perform the above operation.

[0199] At 1225, the UE may determine to receive the second downlink shared channel in preference to the third downlink shared channel based on the SPS configuration index associated with the second downlink shared channel being lower than the SPS configuration index associated with the third downlink shared channel in the second downlink shared channel set. The operations of 1225 may be performed according to the methods described herein. In some examples, aspects of the operations of 1225 may be described with reference to Figures 7 to 10 The index component is executed.

[0200] At 1230, the UE may receive at least one downlink shared channel in the set of downlink shared channels, a second downlink shared channel, or both based on the determination. The operations of 1230 may be performed according to the methods described herein. In some examples, aspects of the operations of 1230 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0201] Fig.13 1 is a flow chart of a method 1300 for supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. The operations of the method 1300 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1300 may be implemented by the UE 115 or components thereof as described herein. Figures 7 to 10 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0202] At 1305, the UE may activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with the first pool index. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0203] At 1310, the UE may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be described with reference to Figures 7 to 10 The control message receiver is executed.

[0204] At 1315, the UE may determine whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based on the time overlap between the downlink shared channel set and the second downlink shared channel. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be described with reference to Figures 7 to 10 The overlap determination component is used to perform the above operation.

[0205] At 1320, the UE may determine to receive the first downlink shared channel over the third downlink shared channel based on the priority of the first downlink shared channel being higher than the priority of the third downlink shared channel in the set of downlink shared channels. The operations of 1320 may be performed according to the methods described herein. In some examples, aspects of the operations of 1320 may be described with reference to Figures 7 to 10 The priority components are executed.

[0206] At 1325, the UE may receive at least one downlink shared channel in the set of downlink shared channels, a second downlink shared channel, or both based on the determination. The operations of 1325 may be performed according to the methods described herein. In some examples, aspects of the operations of 1325 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0207] Fig.14 1400 for supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. The operations of the method 1400 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1400 may be implemented by the UE 115 or components thereof as described herein. Figures 7 to 10In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0208] At 1405, the UE may activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0209] At 1410, the UE may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be described with reference to Figures 7 to 10 The control message receiver is executed.

[0210] At 1415, the UE may determine whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based on the time overlap between the downlink shared channel set and the second downlink shared channel. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be described with reference to Figures 7 to 10 The overlap determination component is used to perform the above operation.

[0211] At 1420, the UE may determine to avoid receiving one or more downlink shared channels in the set of downlink shared channels based on the second downlink shared channel at least partially overlapping in time with the one or more downlink shared channels in the set of downlink shared channels, wherein the second pool index is the same as the first pool index. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be described with reference to Figures 7 to 10 The avoidance component is executed.

[0212] At 1425, the UE may receive at least one downlink shared channel in the set of downlink shared channels, a second downlink shared channel, or both based on the determination. The operations of 1425 may be performed according to the methods described herein. In some examples, aspects of the operations of 1425 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0213] Fig.151 is a flow chart of a method 1500 for supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. The operations of the method 1500 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by the UE 115 or components thereof as described herein. Figures 7 to 10 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0214] At 1505, the UE may activate a set of SPS configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0215] At 1510, the UE may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be described with reference to Figures 7 to 10 The control message receiver is executed.

[0216] At 1515, the UE may determine whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based on the time overlap between the downlink shared channel set and the second downlink shared channel. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be described with reference to Figures 7 to 10 The overlap determination component is used to perform the above operation.

[0217] At 1520, the UE may receive at least one downlink shared channel in the set of downlink shared channels, a second downlink shared channel, or both based on the determination. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0218] At 1525, the UE may receive the downlink shared channel or the second downlink shared channel according to a set of rules based on the downlink shared channel in the set of downlink shared channels at least partially overlapping with the second downlink shared channel in both time and frequency. The operations of 1525 may be performed according to the methods described herein. In some examples, aspects of the operations of 1525 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0219] Fig.16 1 is a flow chart of a method 1600 for supporting SPS reception configuration for multiple downlink shared channels according to aspects of the present disclosure. The operations of the method 1600 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by the UE 115 or components thereof as described herein. Figures 7 to 10 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described herein.

[0220] At 1605, the UE may send an indication of the number of shared channels that can be received by the UE. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be described with reference to Figures 7 to 10 The instruction transmitter is executed.

[0221] At 1610, the UE may activate a set of SPS configurations for a downlink shared channel set for the UE, the downlink shared channel set being associated with a first pool index. The operations of 1610 may be performed according to methods described herein. In some examples, aspects of the operations of 1610 may be described with reference to Figures 7 to 10 The activation manager is executed.

[0222] At 1615, the UE may receive a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be described with reference to Figures 7 to 10 The control message receiver is executed.

[0223] At 1620, the UE may determine whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based on a time overlap between the downlink shared channel set and the second downlink shared channel. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be described with reference to Figures 7 to 10 The overlap determination component is used to perform the above operation.

[0224] At 1625, the UE may determine to receive one or more downlink shared channels or a second downlink shared channel in the downlink shared channel set based on the number of shared channels that can be received by the UE. The operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0225] At 1630, the UE may receive at least one downlink shared channel in the set of downlink shared channels, a second downlink shared channel, or both based on the determination. The operations of 1630 may be performed according to the methods described herein. In some examples, aspects of the operations of 1630 may be described with reference to Figures 7 to 10 The shared channel receiver is used to perform the above-mentioned operation.

[0226] 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 other implementations are possible. Furthermore, aspects from two or more of the methods may be combined.

[0227] The following provides a summary of aspects of the present disclosure:

[0228] Aspect 1: A method for wireless communication at a UE, comprising: activating a set of SPS configurations for a downlink shared channel set for the UE, the downlink shared channel set being associated with a first pool index; receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index; determining whether to receive at least one downlink shared channel in the downlink shared channel set or the second downlink shared channel based at least in part on a time overlap between the downlink shared channel set and the second downlink shared channel; and receiving the at least one downlink shared channel in the downlink shared channel set, the second downlink shared channel, or both based at least in part on the determination.

[0229] Aspect 2: The method according to Aspect 1 also includes: determining to receive the first downlink shared channel in priority to the third downlink shared channel based at least in part on the fact that the SPS configuration index associated with the first downlink shared channel in the downlink shared channel set is lower than the SPS configuration index associated with the third downlink shared channel in the downlink shared channel set.

[0230] Aspect 3: The method according to any one of Aspects 1 to 2 further includes: activating a second SPS configuration set for a second downlink shared channel set associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; and determining to receive the second downlink shared channel in priority to the third downlink shared channel based at least in part on the SPS configuration index associated with the second downlink shared channel being lower than the SPS configuration index associated with the third downlink shared channel in the second downlink shared channel set.

[0231] Aspect 4: The method according to any one of Aspects 1 to 3 further includes: determining to receive the first downlink shared channel in priority to the third downlink shared channel based at least in part on the fact that the priority of the first downlink shared channel is higher than the priority of the third downlink shared channel in the downlink shared channel set.

[0232] Aspect 5: The method according to any one of Aspects 1 to 4 further includes: activating a second SPS configuration set for a second downlink shared channel set associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; and determining to receive the second downlink shared channel in priority to the third downlink shared channel based at least in part on the priority of the second downlink shared channel being higher than the priority of the third downlink shared channel in the second downlink shared channel set.

[0233] Aspect 6: The method according to any one of Aspects 1 to 5 further includes: receiving both the downlink shared channel and the second downlink shared channel in the downlink shared channel set based at least in part on the fact that the second downlink shared channel is dynamically scheduled through the control message and the first pool index is different from the second pool index, wherein the downlink shared channel and the second downlink shared channel overlap in time.

[0234] Aspect 7: The method according to any one of Aspects 1 to 6 further includes: determining to avoid receiving the one or more downlink shared channels in the downlink shared channel set based at least in part on the fact that the second downlink shared channel at least partially overlaps in time with one or more downlink shared channels in the downlink shared channel set, wherein the second pool index is the same as the first pool index.

[0235] Aspect 8: The method according to Aspect 7, wherein a threshold number of symbols are spaced between a start symbol of the one or more downlink shared channels in the downlink shared channel set and an end of the control message.

[0236] Aspect 9: The method according to any one of Aspects 1 to 8 further includes: receiving the downlink shared channel or the second downlink shared channel according to a set of rules, at least partially based on the fact that the downlink shared channel in the downlink shared channel set overlaps at least partially with the second downlink shared channel in both time and frequency.

[0237] Aspect 10: A method according to aspect 9, wherein the set of rules indicates that only the downlink shared channel associated with a given pool index will be received by the UE based at least in part on the DMRS symbols of the downlink shared channel and the second downlink shared channel not being aligned.

[0238] Aspect 11: A method according to any one of Aspects 9 to 10, wherein the set of rules indicates that only the downlink shared channel associated with a given pool index will be received by the UE based at least in part on one or more DMRS ports of the downlink shared channel and one or more DMRS ports of the second downlink shared channel belonging to the same DMRS CDM group.

[0239] Aspect 12: The method according to any one of Aspects 1 to 11 also includes: receiving both the downlink shared channel and the second downlink shared channel independently of the alignment between the DMRS symbols of the downlink shared channel in the downlink shared channel set and the DMRS symbols of the second downlink shared channel and independently of one or more DMRS ports of the downlink shared channel and one or more DMRS ports of the second downlink shared channel belonging to the same DMRS CDM group, wherein the downlink shared channel and the second downlink shared channel at least partially overlap in both time and frequency, and wherein the first pool index is different from the second pool index.

[0240] Aspect 13: The method according to aspect 12, wherein the second downlink shared channel is associated with a semi-persistently scheduled downlink shared channel.

[0241] Aspect 14: The method according to any one of Aspects 1 to 13 further includes: activating a second SPS configuration set for a second downlink shared channel set associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; determining to receive the first downlink shared channel in priority to the third downlink shared channel based at least in part on the fact that the SPS configuration index associated with the first downlink shared channel is lower than the SPS configuration index associated with the third downlink shared channel in the downlink shared channel set; and avoiding receiving the one or more downlink shared channels in the second downlink shared channel set based at least in part on the fact that one or more downlink shared channels in the second downlink shared channel set at least partially overlap with the first downlink shared channel in time and frequency.

[0242] Aspect 15: The method according to aspect 14, wherein DMRS symbols of the first downlink shared channel and the one or more downlink shared channels in the second downlink shared channel set are not aligned.

[0243] Aspect 16: A method according to any one of Aspects 14 to 15, wherein the one or more DMRS ports of the first downlink shared channel and the one or more DMRS ports of the one or more downlink shared channels in the second downlink shared channel set belong to the same DMRS CDM group.

[0244] Aspect 17: The method according to any one of Aspects 14 to 16 also includes: determining that the fourth downlink shared channel is received in priority over the fifth downlink shared channel based at least in part on the fact that the SPS configuration index associated with the fourth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set is lower than the SPS configuration index associated with the fifth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set.

[0245] Aspect 18: The method according to any one of Aspects 1 to 17 further includes: receiving the second downlink shared channel based at least in part on the fact that the second downlink shared channel is dynamically scheduled by the control message and at least partially overlaps with at least one downlink shared channel in the downlink shared channel set in both time and frequency; and avoiding receiving the at least one downlink shared channel in the downlink shared channel set.

[0246] Aspect 19: The method according to aspect 18, wherein DMRS symbols of the at least one downlink shared channel and the second downlink shared channel are not aligned.

[0247] Aspect 20: The method according to any one of Aspects 18 to 19, wherein a threshold number of symbols are spaced between a start symbol of the at least one downlink shared channel and an end of the control message.

[0248] Aspect 21: The method according to any one of aspects 18 to 20, wherein one or more DMRS ports of the at least one downlink shared channel and one or more DMRS ports of the second downlink shared channel belong to the same DMRS CDM group.

[0249] Aspect 22: The method according to any one of Aspects 1 to 21 further includes: receiving the at least one downlink shared channel in the downlink shared channel set and the second downlink shared channel based at least in part on the fact that the second downlink shared channel overlaps at least partially with at least one downlink shared channel in the downlink shared channel set in both time and frequency.

[0250] Aspect 23: The method according to any one of Aspects 1 to 22 further includes: sending an indication of the number of shared channels that can be received by the UE; and determining to receive one or more downlink shared channels in the downlink shared channel set or the second downlink shared channel based at least in part on the number of shared channels that can be received by the UE.

[0251] Aspect 24: A method according to Aspect 23, wherein the indication includes a first number of shared channels indexed by the first pool that can be received by the UE; and the indication includes a second number of shared channels indexed by the second pool that can be received by the UE.

[0252] Aspect 25: An apparatus for wireless communication at a UE, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 1 to 24.

[0253] Aspect 26: An apparatus for wireless communication at a UE, comprising: at least one unit for performing the method according to any one of aspects 1 to 24.

[0254] Aspect 27: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 24.

[0255] 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 networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0256] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof may be used to represent the data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description.

[0257] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, DSP, ASIC, CPU, 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, the processor may be any processor, controller, microcontroller, or state machine. The 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, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0258] 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 sent through a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of the present 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, hard wiring, or a combination of any of these items. Features that implement the functions may also be physically located at various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0259] Computer-readable media include non-temporary computer storage media and communication media, and communication media include any medium that helps to transfer a computer program from one place to another. Non-temporary storage media can be any available medium that can be accessed by a general or special computer. By way of example, but not limitation, non-temporary computer-readable media 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 any other non-temporary medium that can be used to carry or store the required program code unit in the form of an instruction or data structure, and any other non-temporary medium that can be accessed by a general or special computer or a general or special processor. Moreover, any connection is appropriately referred to as a computer-readable medium. For example, if a coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwaves are used to send software from a website, server or other remote source, the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwaves are all included in the definition of computer-readable media. Disk and disc as used herein 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.

[0260] 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). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present 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."

[0261] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes the similar components. If only the first reference number is used in the specification, the description applies to any one of the similar components having the same first reference number, regardless of the second reference number or other subsequent reference numbers.

[0262] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "having advantages over other examples." For the purpose of providing an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0263] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications made to the present disclosure will be apparent to one of ordinary skill 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 should be given 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: activating a set of semi-persistent scheduling configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index and at least partially overlapping in time with one or more downlink shared channels in the set of downlink shared channels; as well as Receive at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both, wherein the at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both are selected for reception based at least in part on a time overlap between the one or more downlink shared channels and the second downlink shared channel and a number of shared channels that can be received by the UE.

2. The method according to claim 1, further comprising: The first downlink shared channel is received instead of the third downlink shared channel in the set of downlink shared channels based at least in part on a semi-persistent scheduling configuration index associated with the first downlink shared channel in the set of downlink shared channels being lower than a semi-persistent scheduling configuration index associated with a third downlink shared channel in the set of downlink shared channels.

3. The method according to claim 1, further comprising: activating a second set of semi-persistent scheduling configurations for a second set of downlink shared channels associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; as well as The second downlink shared channel is received instead of the third downlink shared channel based at least in part on a semi-persistent scheduling configuration index associated with the second downlink shared channel being lower than a semi-persistent scheduling configuration index associated with a third downlink shared channel in the second set of downlink shared channels.

4. The method according to claim 1, further comprising: Receiving the first downlink shared channel in preference to a third downlink shared channel in the set of downlink shared channels is determined based at least in part on the first downlink shared channel having a higher priority than the third downlink shared channel.

5. The method according to claim 1, further comprising: activating a second set of semi-persistent scheduling configurations for a second set of downlink shared channels associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; as well as Receiving the second downlink shared channel over the third downlink shared channel is determined based at least in part on the second downlink shared channel having a higher priority than a third downlink shared channel in the second set of downlink shared channels.

6. The method according to claim 1, further comprising: Receiving both the at least one downlink shared channel in the set of downlink shared channels and the second downlink shared channel based at least in part on the fact that the second downlink shared channel is dynamically scheduled via the control message and the first pool index is different from the second pool index, wherein the downlink shared channel and the second downlink shared channel overlap in time.

7. The method according to claim 1, further comprising: Avoiding receiving the one or more downlink shared channels in the set of downlink shared channels based at least in part on the second downlink shared channel at least partially overlapping in time with the one or more downlink shared channels in the set of downlink shared channels, wherein the second pool index is the same as the first pool index.

8. The method according to claim 7, wherein: A threshold number of symbols is separated between a start symbol of the one or more downlink shared channels in the downlink shared channel set and an end of the control message.

9. The method according to claim 1, further comprising: The downlink shared channel or the second downlink shared channel is received according to a set of rules based at least in part on the at least one downlink shared channel in the set of downlink shared channels at least partially overlapping in both time and frequency with the second downlink shared channel.

10. The method according to claim 9, wherein: The set of rules indicates that only a downlink shared channel associated with a given pool index is to be received by the UE based at least in part on demodulation reference signal (DMRS) symbols of the at least one downlink shared channel and the second downlink shared channel being misaligned.

11. The method according to claim 9, wherein: The set of rules indicates that only a downlink shared channel associated with a given pool index is to be received by the UE based at least in part on one or more demodulation reference signal (DMRS) ports of the downlink shared channel and one or more DMRS ports of the second downlink shared channel belonging to the same DMRS code division multiplexing (CDM) group.

12. The method according to claim 1, further comprising: Independently of the alignment between the demodulation reference signal DMRS symbol of the downlink shared channel in the downlink shared channel set and the DMRS symbol of the second downlink shared channel and independent of the one or more DMRS ports of the at least one downlink shared channel and the one or more DMRS ports of the second downlink shared channel belonging to the same DMRS code division multiplexing (CDM) group to receive both the at least one downlink shared channel and the second downlink shared channel, wherein the at least one downlink shared channel and the second downlink shared channel at least partially overlap in both time and frequency, and wherein the first pool index is different from the second pool index.

13. The method according to claim 12, wherein: The second downlink shared channel is associated with a semi-persistently scheduled downlink shared channel.

14. The method according to claim 1, further comprising: activating a second set of semi-persistent scheduling configurations for a second set of downlink shared channels associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; receiving the first downlink shared channel instead of the third downlink shared channel based at least in part on a semi-persistent scheduling configuration index associated with the first downlink shared channel being lower than a semi-persistent scheduling configuration index associated with a third downlink shared channel in the set of downlink shared channels; and Receiving the one or more downlink shared channels in the second set of downlink shared channels is avoided based at least in part on the one or more downlink shared channels in the second set of downlink shared channels at least partially overlapping in time and frequency with the first downlink shared channel.

15. The method according to claim 14, wherein: Demodulation reference signal (DMRS) symbols of the first downlink shared channel and the one or more downlink shared channels in the second downlink shared channel set are not aligned.

16. The method according to claim 14, wherein: The one or more demodulation reference signal DMRS ports of the first downlink shared channel and the one or more DMRS ports of the one or more downlink shared channels in the second downlink shared channel set belong to the same DMRS code division multiplexing CDM group.

17. The method according to claim 14, further comprising: The fourth downlink shared channel is received instead of the fifth downlink shared channel based at least in part on the fact that the semi-persistent scheduling configuration index associated with the fourth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set is lower than the semi-persistent scheduling configuration index associated with the fifth downlink shared channel among the remaining downlink shared channels of the second downlink shared channel set.

18. The method of claim 1, further comprising: receiving the second downlink shared channel based at least in part on the second downlink shared channel being dynamically scheduled by the control message and at least partially overlapping in both time and frequency with at least one downlink shared channel in the set of downlink shared channels; as well as Receiving the at least one downlink shared channel in the set of downlink shared channels is avoided.

19. The method according to claim 18, wherein: Demodulation Reference Signal (DMRS) symbols of the at least one downlink shared channel and the second downlink shared channel are not aligned.

20. The method according to claim 18, wherein: A threshold number of symbols is separated between a start symbol of the at least one downlink shared channel and an end of the control message.

21. The method according to claim 18, wherein: The one or more demodulation reference signal DMRS ports of the at least one downlink shared channel and the one or more DMRS ports of the second downlink shared channel belong to the same DMRS code division multiplexing CDM group.

22. The method of claim 1, further comprising: At least one downlink shared channel in the set of downlink shared channels and the second downlink shared channel are received based at least in part on the second downlink shared channel at least partially overlapping in both time and frequency with at least one downlink shared channel in the set of downlink shared channels.

23. The method of claim 1, further comprising: An indication of the number of shared channels receivable by the UE is sent.

24. The method of claim 23, wherein: The indication includes a first number of shared channels of the first pool index that can be received by the UE; and The indication includes a second number of shared channels of the second pool index that can be received by the UE.

25. An apparatus for wireless communication at a user equipment UE, comprising: one or more processors, one or more memories coupled to the one or more processors; as well as Instructions stored in the one or more memories and executable by the one or more processors to cause the device to perform the following operations: activating a set of semi-persistent scheduling configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index and at least partially overlapping in time with one or more downlink shared channels in the set of downlink shared channels; as well as Receive at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both, wherein the at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both are selected for reception based at least in part on a time overlap between the one or more downlink shared channels and the second downlink shared channel and a number of shared channels that can be received by the UE.

26. The device according to claim 25, wherein The instructions are also executable by the processor to cause the device to perform the following operations: The first downlink shared channel is received instead of the third downlink shared channel based at least in part on a semi-persistent scheduling configuration index associated with the first downlink shared channel being lower than a semi-persistent scheduling configuration index associated with a third downlink shared channel in the set of downlink shared channels.

27. The device according to claim 25, wherein: The instructions are also executable by the processor to cause the device to perform the following operations: activating a second set of semi-persistent scheduling configurations for a second set of downlink shared channels associated with the second pool index and including the second downlink shared channel based at least in part on the control message and one or more additional control messages; as well as The second downlink shared channel is received instead of the third downlink shared channel based at least in part on a semi-persistent scheduling configuration index associated with the second downlink shared channel being lower than a semi-persistent scheduling configuration index associated with a third downlink shared channel in the second set of downlink shared channels.

28. The device according to claim 25, wherein The instructions are also executable by the processor to cause the device to perform the following operations: Receiving the first downlink shared channel in preference to a third downlink shared channel in the set of downlink shared channels is determined based at least in part on the first downlink shared channel having a higher priority than the third downlink shared channel.

29. An apparatus for wireless communication at a user equipment UE, comprising: means for activating a set of semi-persistent scheduling configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; means for receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index and at least partially overlapping in time with one or more downlink shared channels in the set of downlink shared channels; as well as A unit for receiving at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both, wherein the at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both are selected for reception based at least in part on a time overlap between the one or more downlink shared channels and the second downlink shared channel and a number of shared channels that can be received by the UE.

30. A non-transitory computer readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to: activating a set of semi-persistent scheduling configurations for a set of downlink shared channels for the UE, the set of downlink shared channels being associated with a first pool index; receiving a control message indicating time-frequency resources for a second downlink shared channel for the UE, the second downlink shared channel being associated with a second pool index and at least partially overlapping in time with one or more downlink shared channels in the set of downlink shared channels; and receiving at least one downlink shared channel in the downlink shared channel set, the second downlink shared channel, or both, wherein: The at least one downlink shared channel in the set of downlink shared channels, the second downlink shared channel, or both are selected for reception based at least in part on a time overlap between the one or more downlink shared channels and the second downlink shared channel and a number of shared channels that can be received by the UE.

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