KR20230165220A - Downlink Control Channel Repeat for Downlink Control Channel Ordering - Google Patents

Abstract

Methods, systems and devices for wireless communications are described. A user equipment (UE) may receive an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition. The UE may receive a downlink control channel order requesting the UE to participate in the random access procedure. In some examples, the downlink control channel order may be received via one or both of the first and second downlink control channel candidates, and the UE may receive the downlink control channel order via the linked downlink control channel candidates. A random access procedure may be performed according to one or more rules related to . Additionally or alternatively, the UE may receive a downlink control channel order via an unlinked downlink control channel candidate for downlink control channel repetition according to one or more rules.

Description

Downlink Control Channel Repeat for Downlink Control Channel Ordering

[0001] This patent application claims priority to U.S. patent application Ser. No. 17/708,178, filed March 30, 2022, by Khoshnevisan et al., entitled “DOWNLINK CONTROL CHANNEL REPETITION FOR A DOWNLINK CONTROL CHANNEL ORDER,” and claims the benefit of U.S. Provisional Patent Application No. 63/169,663, entitled “DOWNLINK CONTROL CHANNEL REPETITION FOR A DOWNLINK CONTROL CHANNEL ORDER,” filed on April 1, 2021 by Khoshnevisan et al. and assigned to the assignee of the present application.

[0002] This disclosure relates to wireless communications involving downlink control channel repetition on downlink control channel order.

[0003] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems can support communication with multiple users by sharing available system resources (eg, time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and NR ( It includes 5G (fifth generation) systems, which may be referred to as New Radio) systems. These systems include code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM). ) can be used. 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 otherwise be known as user equipment (UE).

[0004] In some wireless communication systems, a base station may transmit a downlink control channel order to the UE requesting the UE to participate in a random access procedure.

[0005] The described techniques relate to improved methods, systems, devices and apparatus that support downlink control channel repetition for downlink control channel ordering. Generally, the described techniques allow a user equipment (UE) to link two or more downlink control channels for repetition according to one or more rules related to the reception of downlink control channel orders through linked downlink control channel candidates. Provides for receiving downlink control channel orders via candidates. The UE may receive an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. In some examples, the indication may be received via radio resource control (RRC) signaling. The UE may receive a downlink control channel order via one or both of the first and second downlink control channel candidates according to one or more rules. The downlink control channel order may be transmitted by the base station and may request the UE to participate in the random access procedure. The UE may perform a random access procedure associated with downlink control channel ordering according to one or more rules. In some examples, one or more rules may indicate a critical delay period between receiving a downlink control channel order at the UE and transmitting an uplink random access message by the UE. In some examples, one or more rules may specify guidelines for identifying quasi-colocation (QCL) assumptions to be applied to reception of a downlink random access message. Additionally or alternatively, one or more rules may relate to whether the UE can receive a downlink control channel order via linked downlink control channel candidates. In some examples, a UE may receive a downlink control channel order via a downlink control channel candidate that is not linked with other downlink control channel candidates for repetition.

[0006] A method for wireless communications in a UE is described. The method includes receiving an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition, one of the first downlink control channel candidate and the second downlink control channel candidate. or both, receiving a downlink control channel order requesting the UE to participate in a random access procedure, and one or more rules associated with receiving the downlink control channel order via linked downlink control channel candidates. and performing a random access procedure associated with downlink control channel ordering.

[0007] An apparatus for wireless communications in a UE is described. The device may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions cause the device to receive an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition, and the first downlink control channel candidate and the second downlink control channel candidate are linked for repetition. receive, via one or both of the channel candidates, a downlink control channel order requesting the UE to participate in the random access procedure, and one associated with receiving the downlink control channel order via the linked downlink control channel candidates. It may be executable by the processor to perform a random access procedure associated with downlink control channel ordering according to the above rules.

[0008] Another apparatus for wireless communications in a UE is described. The apparatus includes means for receiving an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition, among the first downlink control channel candidate and the second downlink control channel candidate. Means for receiving, via one or both, a downlink control channel order requesting the UE to participate in a random access procedure, and one or more rules related to receiving the downlink control channel order via linked downlink control channel candidates. It may include means for performing a random access procedure associated with downlink control channel ordering.

[0009] A non-transitory computer-readable medium storing code for wireless communications in a UE is described. The code receives an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition, and one of the first downlink control channel candidate and the second downlink control channel candidate or Through both, receive a downlink control channel order requesting the UE to participate in the random access procedure, and downlink control channel order according to one or more rules related to the reception of the downlink control channel order via linked downlink control channel candidates. It may include instructions executable by a processor to perform a random access procedure associated with link control channel ordering.

[0010] In some examples of the methods, devices, and non-transitory computer-readable media described herein, performing a random access procedure includes providing a random access opportunity for transmission of an uplink random access message in response to a downlink control channel order. operations for determining and transmitting an uplink random access message during a random access opportunity based on the first symbol of the random access opportunity being after a threshold delay period that can be triggered by a reference downlink control channel candidate; It may contain features, means or instructions. In some examples, the reference downlink control channel candidate may be a second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and one or more rules may determine a threshold. It may be indicated that the delay period starts after the last symbol of the second downlink control channel candidate.

[0011] Some examples of the methods, devices, and non-transitory computer-readable media described herein include performing a random access procedure according to one or more rules to determine whether a downlink control channel order is received during a first downlink control channel candidate or It may further include operations, features, means or instructions for which the second downlink control channel candidate may be independent of whether it is received during the second downlink control channel candidate.

[0012] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the threshold delay period includes: a first time period for uplink shared channel preparation depending on the capabilities of the UE, a second time period for random access preparation period, a third time period for bandwidth part (BWP) switching, a fourth time period for uplink switching, or a combination thereof.

[0013] In some examples of the methods, devices, and non-transitory computer-readable media described herein, determining a random access opportunity may include determining the random access opportunity based on an indication of a downlink control channel order or a measured synchronization signal block (SSB). It may include operations, features, means or instructions for determining the timing of.

[0014] In some examples of the methods, devices, and non-transitory computer-readable media described herein, performing a random access procedure includes transmitting an uplink random access message in response to a downlink control channel order—a first downlink random access message. The link control channel candidate may be associated with a first transmission configuration indicator (TCI) state, and the second downlink control channel candidate may be associated with a second TCI state that may be different from the first TCI state—, and one. In accordance with the above rules, operations, features, means or instructions may be included for identifying a QCL assumption to be applied to the reception of a downlink random access message in response to an uplink random access message, wherein the QCL assumption is Associated with at least one of a first TCI state or a second TCI state.

[0015] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. The one or more rules may include operations, features, means or instructions for selecting a first downlink control channel candidate and a second TCI state. It specifies what can be based on the relative timing of downlink control channel candidates.

[0016] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. The one or more rules may include operations, features, means or instructions for selecting, wherein selection of either the first TCI state or the second TCI state corresponds to the first downlink control channel candidate. It specifies that the first search space set may be based on relative values of a first search space set identifier (ID) of the first search space set and a second search space set ID of the second search space set corresponding to the second downlink control channel candidate.

[0017] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. The one or more rules may include operations, features, means or instructions for selecting, wherein selection of either the first TCI state or the second TCI state corresponds to the first downlink control channel candidate. It specifies that the method may be based on relative values of a first control resource set (CORESET) ID associated with a first search space set and a second CORESET ID associated with a second search space set corresponding to a second downlink control channel candidate.

[0018] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. The one or more rules may include operations, features, means or instructions for selecting a first TCI state or a second TCI state associated with the first TCI state. ID and the relative values of the second TCI state ID associated with the second TCI state.

[0019] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes both the first TCI state and the second TCI state as a basis for the QCL assumption according to one or more rules. A downlink random access message to which a QCL assumption may be applied may include operations, features, means or instructions for selecting a downlink control scheduling random access response (RAR) message. Specifying what may be a channel message, the downlink control channel message is transmitted via a third downlink control channel candidate and a fourth downlink control channel candidate that may be linked for downlink control channel repetition.

[0020] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes both the first TCI state and the second TCI state as a basis for the QCL assumption according to one or more rules. The downlink random access message to which the QCL assumption can be applied may include operations, features, means or instructions for selecting, and one or more rules may include spatial division multiplexing (SDM), frequency division multiplexing (FDM) , a time division multiplexing (TDM), or a multi-TCI state downlink shared channel varying in at least one of a single frequency network scheme.

[0021] In some examples of the methods, devices, and non-transitory computer-readable media described herein, downlink control channel ordering is performed using CFRA (CFRA) for a primary cell (PCell) or primary-secondary cell (PSCell), or both. request contention-free random access) procedure.

[0022] In some examples of the methods, devices, and non-transitory computer-readable media described herein, the downlink random access message may be a downlink control channel message scheduling a RAR message or may be a RAR message.

[0023] A method for wireless communications in a base station is described. The method includes transmitting to a UE an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition, the first downlink control channel candidate and the second downlink control channel transmitting, via one or both of the candidates, a downlink control channel order to the UE requesting the UE to participate in a random access procedure; and, from the UE, receiving a downlink control channel order via the linked downlink control channel candidates. Receiving an uplink random access message associated with a downlink control channel order according to one or more rules associated with transmission.

[0024] An apparatus for wireless communications in a base station is described. The device may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions cause the device to transmit an indication to the UE that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition, and the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. send, via one or both of the link control channel candidates, a downlink control channel order to the UE requesting the UE to participate in the random access procedure, and, from the UE, downlink control via the linked downlink control channel candidates. It may be executable by a processor to receive an uplink random access message associated with a downlink control channel order according to one or more rules associated with transmission of the channel order.

[0025] Another apparatus for wireless communications in a base station is described. The apparatus includes means for transmitting to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition, the first downlink control channel candidate and the second downlink control channel candidate. Means for transmitting, via one or both of the channel candidates, a downlink control channel order to the UE requesting the UE to participate in a random access procedure, and, from the UE, a downlink control channel via the linked downlink control channel candidates. and means for receiving an uplink random access message associated with a downlink control channel order according to one or more rules associated with transmission of the order.

[0026] A non-transitory computer-readable medium storing code for wireless communications in a base station is described. The code transmits to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition, and the first downlink control channel candidate and the second downlink control channel candidate transmitting, via one or both, a downlink control channel order to the UE requesting the UE to participate in a random access procedure, and, from the UE, transmitting a downlink control channel order via linked downlink control channel candidates; and instructions executable by a processor to receive an uplink random access message associated with a downlink control channel order according to one or more associated rules.

[0027] In some examples of the methods, devices, and non-transitory computer-readable media described herein, receiving an uplink random access message may comprise the first symbol of a random access opportunity being triggered by a reference downlink control channel candidate. and operations, features, means or instructions for receiving an uplink random access message during a random access opportunity based on being after a threshold delay period. In some examples, the reference downlink control channel candidate may be a second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and one or more rules may determine a threshold. It may be indicated that the delay period starts after the last symbol of the second downlink control channel candidate.

[0028] Some examples of methods, devices, and non-transitory computer-readable media described herein include receiving an uplink random access message according to one or more rules while a downlink control channel order is a first downlink control channel candidate. It may further include operations, features, means or instructions for which the method may be transmitted or may be independent of whether it may be transmitted during the second downlink control channel candidate.

[0029] Some examples of methods, devices, and non-transitory computer-readable media described herein include operations, features, and means for transmitting an indication of the timing of a random access opportunity to a UE via a downlink control channel order or SSB. It may contain more commands or commands.

[0030] Some examples of methods, devices, and non-transitory computer-readable media described herein include identifying a QCL assumption to be applied to the transmission of a downlink random access message in response to an uplink random access message, according to one or more rules. may further include operations, features, means or instructions for, wherein the QCL assumption is one of a first TCI state associated with the first downlink control channel candidate or a second TCI state associated with the second downlink control channel candidate. Associated with at least one, the first TCI state may be different from the second TCI state.

[0031] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes both the first TCI state and the second TCI state as a basis for the QCL assumption according to one or more rules. The downlink random access message to which the QCL assumption can be applied can be a downlink control channel message scheduling RAR message. Specifying that, the downlink control channel message is transmitted through a third downlink control channel candidate and a fourth downlink control channel candidate that can be linked for downlink control channel repetition.

[0032] In some examples of the methods, devices, and non-transitory computer-readable media described herein, identifying a QCL assumption includes both the first TCI state and the second TCI state as a basis for the QCL assumption according to one or more rules. The one or more rules may include operations, features, means or instructions for selecting a downlink random access message to which a QCL assumption can be applied at least one of SDM, FDM, TDM, or single frequency network method. Specifies what can be a RAR message that can be a multi-TCI state downlink shared channel that varies from one to the next.

[0033] FIG. 1 illustrates an example of a wireless communication system supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0034] FIG. 2 illustrates an example of a wireless communication system supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0035] Figures 3A and 3B illustrate examples of search space set configurations that support downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0036] Figures 4A and 4B illustrate examples of random access timelines supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0037] Figure 5 illustrates an example of a process flow supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0038] Figure 6 illustrates an example of a process flow supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0039] Figures 7 and 8 show block diagrams of devices supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0040] FIG. 9 illustrates a block diagram of a communications manager supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0041] FIG. 10 shows a diagram of a system including a device supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0042] Figures 11 and 12 show block diagrams of devices supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0043] Figure 13 shows a block diagram of a communication manager supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
FIG. 14 shows a diagram of a system including a device supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.
[0045] Figures 15-18 show flow diagrams illustrating methods of supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure.

[0046] In some wireless communication systems, a user equipment (UE) may be comprised of one or more control resource sets (CORESETs). Each CORESET may include time and frequency resources within the bandwidth part (BWP) of the serving cell allocated to carry a physical downlink control channel (PDCCH). CORESET may include one or more search space sets, each containing one or more PDCCH candidates. The UE may be configured to monitor each PDCCH candidate for downlink control information (DCI). In some examples, the base station may transmit a PDCCH order requesting the UE to participate in a random access procedure over one or more PDCCH candidates linked for PDCCH repetition. However, if the PDCCH order is associated with linked PDCCH candidates, the UE may not be able to identify a timeline for transmitting an uplink random access message, such as a random access request message, after receiving the PDCCH order. Additionally or alternatively, if a PDCCH order is associated with linked PDCCH candidates each corresponding to different transmission configuration indicator (TCI) states, the UE may apply a QCL (QCL) to the reception of one or more downlink random access messages corresponding to the PDCCH order. It may not be known which TCI state should be selected as the basis for the quasi-colocation) assumption.

[0047] A UE as described herein may be configured with one or more sets of rules to perform a random access procedure according to a PDCCH order received via linked PDCCH candidates. Performing a random access procedure by a UE includes receiving a PDCCH order, transmitting an uplink random access message, and scheduling a PDCCH downlink random access message received over a physical downlink shared channel (PDSCH). It may include receiving DCI through. After receiving a PDCCH order within one or both of the first PDCCH candidate or the second PDCCH candidate linked to the first PDCCH candidate, the UE before transmitting an uplink random access message via a physical random access channel (PRACH) You can wait for at least the delay period. One or more rules may indicate that the delay period begins after the last symbol of the linked PDCCH candidate ending later in time.

[0048] If the first PDCCH candidate and the second PDCCH candidate are associated with the same TCI state, the UE may use the TCI state as the basis for the QCL assumption to be applied to the reception of the DCI, the downlink random access message, or both. In some examples, a first PDCCH candidate may correspond to a first TCI state, a second PDCCH candidate may correspond to a second TCI state that is different from the first TCI state, and rules are provided for use as a basis for QCL assumptions. One or more parameters for selecting one of the first TCI state or the second TCI state can be specified. If the DCI scheduling the downlink random access message is associated with linked PDCCH candidates, or the downlink random access message is received on a multi-TCI state PDSCH, or both, one or more rules may apply to the first and second TCI It is possible to specify that both states can be selected.

[0049] Additionally or alternatively, one or more rules may indicate that a UE may refrain from receiving a PDCCH order if the PDCCH order is associated with two or more linked PDCCH candidates. In these cases, the UE may receive a PDCCH order through a PDCCH candidate that is not linked with other PDCCH candidates for repetition. In one example, one or more rules may allow receipt of a PDCCH order through linked PDCCH candidates if the linked PDCCH candidates correspond to the same TCI state, and one or more rules may allow reception of a PDCCH order if the linked PDCCH candidates correspond to different TCI states. If you respond to them, you can suppress the reception of PDCCH orders. Accordingly, the UE may be configured with one or more rules related to the reception of PDCCH orders through linked PDCCH candidates to improve the reliability and efficiency of the random access procedure corresponding to the PDCCH order.

[0050] Aspects of the present disclosure are initially described in the context of wireless communication systems. Additional aspects of the present disclosure are described with reference to search space set configurations, random access timelines, and process flows. Aspects of the present disclosure are further illustrated and described with reference to device diagrams, system diagrams, and flow diagrams related to downlink control channel repetition for downlink control channel ordering.

[0051] 1 illustrates an example of a wireless communication system 100 supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. 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, wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, wireless communication system 100 may provide enhanced broadband communications, highly reliable (e.g., mission critical) communications, low latency communications, or communications by low cost and low complexity devices. Or any combination of these can be supported.

[0052] Base stations 105 may be distributed throughout a geographic area to form wireless communication system 100 and may be devices of different types or with different capabilities. Base stations 105 and UEs 115 may communicate wirelessly via one or more communication links 125 . Each base station 105 may provide a coverage area 110 over which UEs 115 and the base station 105 may establish one or more communication links 125 . Coverage area 110 may be an example of a geographic area in which base station 105 and UE 115 can support communication of signals according to one or more radio access technologies.

[0053] UEs 115 may be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. UEs 115 may be devices of different types or with different capabilities. Some example UEs 115 are illustrated in FIG. 1 . UEs 115 described herein may be connected to various types of devices, such as other UEs 115, base stations 105, or network equipment (such as core network nodes, etc.), as shown in FIG. relay devices, integrated access and backhaul (IAB) nodes, or other network equipment).

[0054] Base stations 105 may communicate with core network 130, 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 interface). Base stations 105 may interact with each other directly (e.g., directly between base stations 105) or indirectly (e.g., via backhaul links 120 (e.g., via X2, Xn, or other interface). For example, via core network 130) or both. In some examples backhaul links 120 may be or include one or more wireless links.

[0055] One or more of the base stations 105 described herein may be a base transceiver station, a wireless base station, an access point, a radio transceiver, a NodeB, an eNB (eNodeB), a next-generation NodeB, or a giga-NodeB, either of which may be referred to as a gNB. may be referred to or include home NodeB, home eNodeB, or other appropriate terms to those skilled in the art.

[0056] UE 115 may be referred to as or include a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable terminology, where “device” may also refer to a unit, station, terminal, or, among other examples. May be referred to as a client. UE 115 may also refer to or include a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may refer to or include a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples. This can be implemented in various objects such as devices or vehicles, measuring instruments, among other examples.

[0057] UEs 115 described herein include base stations 105, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1 . It can communicate with various types of devices, such as network equipment as well as other UEs 115, which can sometimes act as repeaters.

[0058] UEs 115 and base stations 105 may wirelessly communicate with each other via one or more communication links 125 over one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources with a defined physical hierarchy to support communication links 125. For example, the carrier used for communications link 125 may be a radio frequency spectrum operating along one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). It may include part of a band (e.g., BWP). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling that coordinates operation on the carrier, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.

[0059] In some examples (eg, in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN)) and distributed according to a channel raster for discovery by UEs 115. can be positioned. The carrier may operate in a standalone mode where initial acquisition and attachment may be performed by UEs 115 over the carrier, or the carrier may operate on a different carrier (e.g., of the same or a different radio access technology). It can be operated in a non-standalone mode with anchored connections using:

[0060] Communication links 125 depicted in wireless communication system 100 may include uplink transmissions from UE 115 to base station 105 or downlink transmissions from base station 105 to UE 115. . The carriers may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0061] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples the carrier bandwidth may be referred to as a carrier or “system bandwidth” of wireless communication system 100. For example, the carrier bandwidth is one of a number of determined bandwidths for the carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) It can be. Devices (e.g., base stations 105, UEs 115, or both) of wireless communication system 100 may have hardware configurations that support communications over a specific carrier bandwidth or set of carrier bandwidths. It may be configurable to support communications via one of the following: In some examples, wireless communication system 100 may include base stations 105 or UEs 115 that support simultaneous communications on carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on portions (e.g., sub-band, BWP) or all of the carrier bandwidth.

[0062] The signal waveforms transmitted over the carrier may be multiple (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform-spread-OFDM (DFT-S-OFDM). It may be composed of subcarriers. In a system using MCM techniques, a resource element may consist of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely proportional. 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). Accordingly, the greater the number of resource elements that the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate for the UE 115 may be. A wireless communication resource may refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may provide data for communications with the UE 115. The rate or data integrity can be further increased.

[0063] One or more numerologies for the carrier may be supported, where the numerology is the subcarrier spacing ( ) and cyclic prefixes. A carrier may be split into one or more BWPs with the same or different numerologies. In some examples, 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 UE 115 may be limited to one or more active BWPs.

[0064] Time intervals for base stations 105 or UEs 115, e.g. May be expressed as multiples of the base time unit, which can refer to a sampling period of seconds, where: can express the maximum supported subcarrier spacing, can express the maximum supported discrete Fourier transform (DFT) size. Time intervals of the communication resource 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) ranging from 0 to 1023, for example.

[0065] Each frame may include a number of consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into multiple slots. Alternatively, each frame may include a variable number of slots, with the number of slots depending on the subcarrier spacing. Each slot may include a number of symbol periods (eg, depending on the length of the cyclic prefix pre-attached to each symbol period). In some wireless communication systems 100, a slot may be further divided into multiple mini-slots containing one or more symbols. Excluding cyclic prefixes, each symbol period can contain one or more (e.g. ) may include sample periods. The duration of the symbol period may depend on the subcarrier spacing or operating frequency band.

[0066] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of 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 the TTI) may be variable. Additionally or alternatively, the minimum scheduling unit of wireless communication system 100 may be selected dynamically (e.g., in bursts of shortened TTIs (sTTIs)).

[0067] Physical channels can be multiplexed on the carrier according to various techniques. The physical control channel and physical data channel may be multiplexed on the downlink carrier using, for example, one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. You can. A control zone (e.g., CORESET) for a physical control channel may be defined by a number of symbol periods and may extend over the system bandwidth or a subset of the carrier's system bandwidth. One or more control areas (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search control areas for control information according to one or more search space sets, each search space set comprising one or more aggregates arranged in a cascade manner. Gation levels may include one or multiple control channel candidates. An aggregation level for a control channel candidate may refer to a number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format with a given payload size. The search space sets may include common search space sets configured to transmit control information to multiple UEs 115 and UE-specific search space sets for transmitting control information to a specific UE 115 .

[0068] Each base station 105 may provide communication coverage via one or more cells, eg, macro cells, small cells, hotspots or other types of cells, or various combinations thereof. The term “cell” may refer to a logical communication entity used to communicate with a base station 105 (e.g., via a carrier) and may have neighboring cells (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID) It can be associated with an identifier to distinguish cell identifier, etc.). In some examples, a cell may also refer to geographic coverage area 110 or a portion (e.g., sector) of geographic coverage area 110 in which a logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of the structure) to larger areas depending on various factors such as the capabilities of the base station 105. For example, a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping geographic coverage areas 110, among other examples.

[0069] A macro cell typically covers a relatively large geographic area (e.g., several kilometers in radius) and can allow unrestricted access by UEs 115 with service subscriptions with a network provider that supports the macro cell. A small cell may be associated with a base station 105 of lower power compared to a macro cell, and the small cell may operate in the same or different (eg, licensed, unlicensed) frequency bands as the macro cells. Small cells can provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or UEs 115 that have an association with the small cell (e.g., a closed subscriber group (CSG)) of UEs 115, UEs 115 associated with users at home or in the office. Base station 105 may support one or multiple cells and may also support communications over one or more cells using one or multiple component carriers.

[0070] In some examples, a carrier may support multiple cells, and different cells may support different protocol types (e.g., MTC, narrowband IoT (NB-IoT), eMBB) that may provide access to different types of devices. (enhanced mobile broadband)).

[0071] In some examples, base station 105 may be mobile and thus may provide communications coverage for a moving geographic coverage area 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 be a heterogeneous network, e.g., where different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies. may include.

[0072] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, base stations 105 may have similar frame timings and transmissions from different base stations 105 may be approximately time aligned. For asynchronous operation, base stations 105 may have different frame timings, and in some examples, transmissions from different base stations 105 may not be time aligned. The techniques described herein can be used for synchronous or asynchronous operations.

[0073] Some UEs 115, e.g., MTC or IoT devices, may be low-cost or low-complexity devices, but provide automated communication between machines (e.g., via Machine-to-Machine (M2M) communication). can do. M2M communications or MTC may refer to data communication technologies that allow devices to communicate with each other or with the base station 105 without human intervention. In some examples, machine-to-machine communications, or MTC, is a central server or application program that integrates sensors or instruments to measure or capture information and present such information to humans who use the information or interact with the application program. May include communications from relaying devices. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart instrumentation, 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 charging.

[0074] Some UEs 115 are configured to utilize operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmit or receive, but does not support transmit and receive simultaneously). It can be configured. In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communications, operating over limited bandwidth (e.g., depending on narrowband communications), , or a combination of these techniques. For example, some UEs 115 may have a narrow network associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within the carrier, within the guard band of the carrier, or outside the carrier. Can be configured for operation using a band protocol type.

[0075] Wireless communication system 100 may be configured to support highly reliable communications or low-latency communications, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission-critical communications. UEs 115 may be designed to support highly reliable, low-latency, or critical functions (e.g., mission critical functions). Highly reliable communications may include private or group communications and may be directed to one or more mission-critical services, such as mission critical push-to-talk (MCPTT), mission critical video (MCVideo), or mission critical data (MCData). can be supported by 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 highly reliable, low-latency, mission critical, and highly reliable low-latency may be used interchangeably herein.

[0076] In some examples, UE 115 also communicates with other UEs 115 via device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). ) can be communicated directly with. One or more UEs 115 utilizing D2D communications may be within the geographic coverage area 110 of the base station 105 . Other UEs 115 in this group may be outside the geographic coverage area 110 of base station 105 or may otherwise not receive transmissions from base station 105 . In some examples, groups of UEs 115 communicating via D2D communications may utilize a one-to-many (1:M) system where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates scheduling of resources for D2D communications. In other cases, D2D communications are performed between UEs 115 without the involvement of a base station 105.

[0077] In some systems, D2D communication link 135 may be an example of a communication channel between vehicles (e.g., UEs 115), such as a sidelink communication channel. In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination thereof. The vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information related to the V2X system. In some examples, vehicles in a V2X system use vehicle-to-network (V2N) communications to connect to roadside infrastructure, such as a roadside unit, via one or more network nodes (e.g., base stations 105). It can communicate with the network, with the network, or with both.

[0078] Core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which includes at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management entity (AMF)). mobility management function) and at least one user plane entity (e.g., serving gateway (S-GW), Packet Data Network (PDN) gateway (P-GW), or UPF) that routes packets or is interconnected to external networks. (user plane function)) may be included. The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication and bearer management for UEs 115 served by base stations 105 associated with core network 130. User IP packets may be passed through a user plane entity, which may provide IP address assignment as well as other functions. A user plane entity may be connected to IP services 150 for one or more network operators. IP services 150 may include access to the Internet, intranet(s), IP Multimedia Subsystem (IMS), or packet switched streaming service.

[0079] Some of the network devices, for example base station 105, may include subcomponents such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 communicates with UEs 115 via one or more other access network transmitting entities 145, which may be referred to as radio heads, smart radio heads or transmission/reception points (TRPs). Can communicate. Each access network transmitting 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 are distributed across various network devices (e.g., radio heads and ANCs) or are distributed across a single network device (e.g., It can be integrated into the base station 105).

[0080] 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). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band, since the wavelengths range from approximately 1 decimeter to 1 meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves may penetrate structures sufficiently for a macro cell to provide service to UEs 115 located indoors. Transmission of UHF waves requires smaller antennas and shorter ranges (e.g. For example, less than 100 km).

[0081] The wireless communication system 100 may also operate in the super high frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as the centimeter band, or in the extremely high frequency (EHF) region of the spectrum, also known as the millimeter band (e.g. For example, 30 GHz to 300 GHz). In some examples, wireless communication system 100 may support millimeter wave (mmW) communications between UEs 115 and base stations 105, where the EHF antennas of each device are smaller and closer together than the UHF antennas. can be spaced apart. In some examples, this may facilitate the use of antenna arrays within a device. However, the propagation of EHF transmissions may suffer much greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be used across transmissions using one or more different frequency regions, and the designated use of bands across such frequency regions may vary by country or regulatory agency.

[0082] Wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may use License Assisted Access (LAA) or LTE-Unlicensed (LTE-U) radio access technology in an unlicensed band, for example, the 5 GHz industrial, scientific, and medical (ISM) band. NR technology can be used. When operating in unlicensed radio frequency spectrum bands, devices such as base stations 105 and UEs 115 may utilize carrier sensing for collision detection and avoidance. In some examples, operations in unlicensed bands may be based on a carrier aggregation configuration associated with component carriers operating in a licensed band (e.g., LAA). Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0083] Base station 105 or UE 115 may be equipped with multiple antennas, which may be used to utilize techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. You can. Antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located in an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with base station 105 may be located at various geographic locations. Base station 105 may have an antenna array with multiple rows and columns of antenna ports that base station 105 can use to support beamforming of communications with UE 115. Likewise, 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 transmitted through the antenna port.

[0084] Base stations 105 or UEs 115 may use MIMO communications to take advantage of multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals over different spatial layers. These techniques may be referred to as spatial multiplexing. Multiple signals may be transmitted by the transmitting device, for example, via different antennas or different combinations of antennas. Similarly, multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). there is. Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.

[0085] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, allows a transmitting device to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Or it is a signal processing technique that can be used in a receiving device (eg, base station 105, UE 115). Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array such that some signals propagating at certain orientations with respect to the antenna array experience constructive interference while others experience destructive interference. Adjustment of signals communicated via antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a particular orientation (eg, for an antenna array of a transmitting device or a receiving device, or for some other orientation).

[0086] Base station 105 or UE 115 may use beam sweeping techniques as part of beam forming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communications with UE 115. Some signals (eg, synchronization signals, reference signals, beam selection signals or other control signals) may be transmitted by the base station 105 multiple times in different directions. For example, base station 105 may transmit a signal according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions can be used to identify the beam direction for subsequent transmission and/or reception by base station 105 (e.g., by a transmitting device such as base station 105 or by UE 115). can be used (by the receiving device).

[0087] Some signals, eg, data signals associated with a particular receiving device, may be transmitted by base station 105 in a single beam direction (eg, 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 can be determined based on a signal transmitted in one or more beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions and determine which signal UE 115 received with the highest or otherwise acceptable signal quality. The indication of the signal may be reported to the base station 105.

[0088] In some examples, transmissions by a device (e.g., by base station 105 or UE 115) may be performed using multiple beam directions, with the device transmitting (e.g., from base station 105) A combination of digital precoding or radio frequency beamforming may be used to generate a combined beam for transmission (to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to the system bandwidth or configured number of beams across one or more subbands. The base station 105 may transmit a reference signal (e.g., cell-specific reference signal (CRS), channel state information reference signal (CSI-RS)) that may or may not be precoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). . Although these techniques are described with reference to signals being transmitted in one or more directions by base station 105, UE 115 may be used to transmit signals multiple times in different directions (e.g., by UE 115). Similar techniques may be used to transmit a signal in a single direction (e.g., to identify a beam direction for subsequent transmission or reception) or to transmit data to a receiving device.

[0089] A receiving device (e.g., UE 115) may use multiple reception configurations when receiving various signals, e.g., synchronization signals, reference signals, beam selection signals or other control signals, from base station 105. (e.g., directional listening). For example, the receiving device may apply different receive beamforming applied to signals received at multiple antenna elements of an antenna array, by receiving via different antenna subarrays, by processing signals received according to different antenna subarrays. Received signals by receiving according to weight sets (e.g., different directional listening weight sets), or according to different receive beamforming weight sets applied to the received signals at multiple antenna elements of the antenna array. Processing may attempt multiple reception directions, any of which may be referred to as “listening” according to different reception configurations or reception directions. In some examples, a receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration can listen along different receive configuration directions (e.g., the beam direction determined to have the greatest signal strength, greatest signal-to-noise ratio (SNR), or otherwise listen along multiple beam directions). can be aligned in a beam direction determined based on acceptable signal quality.

[0090] Wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer can perform packet segmentation and reassembly for communication through logical channels. The MAC (Medium Access Control) layer can perform multiplexing and priority handling of logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer establishes, configures and maintains RRC connections between the core network 130 or base station 105 and UE 115 supporting radio bearers for user plane data. can be provided. At the physical layer, transport channels can be mapped to physical channels.

[0091] UEs 115 and base stations 105 may support retransmissions of data to increase the likelihood that data is successfully received. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data will be received accurately over communication link 125. HARQ may 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 of the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device may support co-slot HARQ feedback, where the device may provide HARQ feedback in a particular slot for data received in a previous symbol of the slot. In other cases, the device may provide HARQ feedback in a subsequent slot or according to some other time interval.

[0092] In some examples, UE 115 configures two or more downlink control channel candidates (e.g., PDCCH candidates, search space, or some other candidate time and/or frequency location of downlink resource) that are linked for downlink control channel repetition. Downlink control channel orders can be received through . UE 115 may receive an indication that the first PDCCH candidate and the second PDCCH candidate are linked for PDCCH repetition. In some examples, the indication may be received via RRC signaling. UE 115 may receive a PDCCH order via one or both of the first and second PDCCH candidates. The PDCCH order may be transmitted by the base station 105 and may request the UE 115 to participate in a random access procedure. UE 115 may perform a random access procedure associated with a PDCCH order according to one or more rules related to receipt of the PDCCH order via linked PDCCH candidates. In some examples, one or more rules may indicate a threshold delay period between receiving a PDCCH order at UE 115 and transmitting an uplink random access message by UE 115 to base station 105. . In some examples, one or more rules may indicate rules for identifying QCL assumptions to be applied to reception of a downlink random access message. Additionally or alternatively, one or more rules may be related to whether UE 115 can receive a PDCCH order via linked PDCCH candidates. As such, one or more rules may reduce ambiguity associated with timing, TCI state selection, or both for performing a random access procedure in response to receipt of a PDCCH order on linked PDCCH candidates, thereby improving communication reliability and efficiency. can be improved.

[0093] 2 illustrates an example of a wireless communication system 200 supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. In some examples, wireless communication system 200 may implement some aspects of wireless communication system 100. For example, wireless communication system 200 may include base station 105-a and UE 115-a, which may include base station 105 and UE 115 as described with reference to FIG. Examples can be expressed. Base station 105-a and UE 115-a may communicate within geographic coverage area 110-a via uplink communication link 205 and downlink communication link 210 (e.g., Uu links). You can. In some examples, base station 105-a issues a PDCCH order 225 requesting UE 115-a to participate in a random access procedure to UE 115-a via one or more PDCCH candidates linked for PDCCH repetition. It can be sent to a).

[0094] UE 115-a and base station 105-b may perform a random access procedure to synchronize uplink communication link 205, downlink communication link 210, or both. In some cases, UE 115-a may transmit a random access request message 230 (eg, Msg 1) to initiate a random access procedure. Random access request message 230 may be transmitted via PRACH during a PRACH opportunity. The random access procedure may correspond to contention-based random access (CBRA) or contention-free random access (CFRA). During the CBRA procedure, UE 115-a may randomly select a PRACH opportunity and preamble for transmitting the random access request message 230 (e.g., based on a received synchronization signal block (SSB)). During the CFRA procedure, UE 115-a may receive a random access preamble and/or PRACH opportunity assignment from base station 105-a, and UE 115-a may receive random access according to the assigned preamble and PRACH opportunity. A request message 230 may be transmitted.

[0095] If the random access request message 230 has not been transmitted by UE 115-a, and base station 105-a identifies downlink data to transmit to UE 115-a, base station 105-a A PDCCH order 225 may be transmitted to UE 115-a to request UE 115-a to participate in the random access procedure. UE 115-a may transmit a random access request message 230 in response to the PDCCH order 225. UE 115-a may receive the PDCCH order 225 via DCI (e.g., DCI format 1_0) with a CRC scrambled by a control radio network temporary identifier (C-RNTI). If each bit in the frequency domain resource allocation (FDRA) field of the DCI is set to high (e.g., '1'), the UE 115-a may determine that the DCI corresponds to the PDCCH order 225.

[0096] PDCCH order 225 may indicate one or more parameters associated with a random access procedure. For example, the PDCCH order 225 may include a random access preamble index (e.g., a 6-bit field) that indicates the type of random access procedure. If the random access preamble index is 0, the PDCCH order triggers CBRA, and UE 115-a can ignore the remaining fields in PDCCH order 225. During CBRA, UE 115-a measures one or more SSBs received from base station 105-a and receives a PRACH opportunity (e.g., You can determine the timing of the PRACH opportunity, such as the start symbol of the PRACH opportunity. If the random access preamble is non-zero, the PDCCH order triggers CFRA. Once CFRA is triggered, UE 115-a may decode one or more remaining fields in PDCCH order 225 to identify PRACH opportunities and other parameters associated with the random access procedure.

[0097] One or more remaining fields within the PDCCH order 225 may include an uplink or supplementary uplink (SUL) indication field, an SSB index field, a PRACH mask index field, one or more other reserved fields, or any combination thereof. The Uplink or SUL Indication field may include bits to indicate whether UE 115-a can transmit the random access request message 230 over the uplink or SUL. The SSB index field may include a quantity of bits (eg, 6 bits) to indicate the SSB index associated with CFRA. The PRACH mask field may include a quantity of bits (e.g., 4 bits) indicating the PRACH mask index associated with the CFRA. UE 115-a may determine a PRACH opportunity to transmit the random access request message 230 based on the SSB index and PRACH mask index. One or more remaining bits in the DCI carrying the PDCCH order 225 may be reserved for other parameters or applications.

[0098] A PRACH opportunity indicated by the PDCCH order 225 (e.g., for CFRA) or associated with a measured SSB (e.g., for CBRA) may occur after a critical delay period. The critical delay period may begin after the last symbol of the PDCCH order 225. That is, the first symbol of the PRACH opportunity may occur at least after a critical delay period from the last symbol of the PDCCH order 225. The critical delay period may consider physical uplink shared channel (PUSCH) preparation, random access preparation, BWP switching, uplink switching, or any combination thereof according to the capabilities of the UE 115-a.

[0099] Base station 105-a may receive a random access request message 230 during a PRACH opportunity, and base station 105-a may transmit one or more other random access messages as part of the random access procedure. For example, base station 105-a may transmit a control message (e.g., DCI) over the PDCCH, a downlink random access response (RAR) message over the PDSCH, or both. In some cases, UE 115-a may send a control message, a downlink RAR message, or both based on the TCI state associated with the PDCCH order 225 (e.g., the beam used for reception of the PDCCH order 225). The QCL assumptions to be applied to the reception of can be identified. For example, UE 115-a may use the TCI state associated with the PDCCH order 225 as a basis for QCL assumptions to be applied to the reception of downlink random access messages (e.g., UE 115-a may It can be assumed that link random access messages are QCLed with PDCCH order 225). Additional aspects of random access procedure messages and timelines may be further described elsewhere herein, including with reference to FIGS. 4A and 4B.

[0100] UE 115-a may use one or more CORESETs (e.g., 3, 4, 5 within the BWP of the serving cell) to monitor the PDCCH for PDCCH order 225 (e.g., for other downlink control messages). or some other quantity of CORESETs). The quantity of time and frequency resources (e.g., resource blocks in the frequency domain and OFDM symbols in the time domain) within each CORESET and the active TCI state associated with each CORESET may be RRC configured. Each CORESET may include one or more search space sets (e.g., up to 10 search space sets in the BWP of a component carrier (CC)), and each search space set (e.g., at a given aggregation level Accordingly) may include one or more PDCCH candidates. UE 115-a may perform blind decoding of PDCCH candidates within each search space set for receiving DCI. That is, the UE 115-a can monitor each PDCCH candidate in the search space set for DCI. UE 115-a may successfully decode one or more of the PDCCH candidates to obtain DCI (e.g., the CRC may pass). In some examples, one or more search space sets and corresponding PDCCH candidates may be linked for repetition of DCI, which may be referred to as PDCCH repetition or downlink control channel repetition. Additional aspects of configurations for search space sets and PDCCH candidates may be further described elsewhere herein, including with reference to FIGS. 3A and 3B.

[0101] In some cases, base station 105-a may transmit a PDCCH order 225 over two or more PDCCH candidates that are linked for PDCCH repetition. UE 115 may receive an indication 235 that the PDCCH candidates are linked, and UE 115 may receive a PDCCH order 225 accordingly. However, in some cases, when the UE 115 receives a PDCCH order 225 via linked PDCCH candidates, the UE 115 uses the threshold to determine a PRACH opportunity to transmit the random access request message 230. You may not know when to start the delay period. Additionally or alternatively, the linked PDCCH candidates may correspond to different TCI states and the UE 115 may, in some cases, determine the QCL assumption to be applied to the reception of downlink random access messages from base station 105-a. You may not know which TCI state to use as a basis.

[0102] As described herein, a UE 115, such as UE 115-a, may be configured with one or more rules related to reception of a PDCCH order 225 via linked PDCCH candidates. UE 115-a may receive a PDCCH order 225 via linked PDCCH candidates and perform a random access procedure in response to the PDCCH order 225 according to one or more rules. One or more rules may indicate a timeline for performing a random access procedure in response to a PDCCH order 225 received via linked PDCCH candidates. For example, the rules may indicate that a critical delay period after receipt of a PDCCH order and before a PRACH opportunity may begin after the last symbol of a PDCCH candidate that ends later in time than the other linked PDCCH candidate(s).

[0103] One or more rules may additionally or alternatively provide instructions for UE 115-a to select one or more TCI states to use as a basis for QCL assumptions for receiving future downlink random access messages. That is, if a PDCCH order 225 is received over PDCCH candidates associated with different TCI states, one or more rules may specify parameters that UE 115-a will use for selection of one of the TCI states. Additionally or alternatively, the rules are such that the UE 115-a receives an indication that an individual downlink random access message will be received via linked PDCCH candidates, via a multi-TCI state PDSCH, or both. Then, it can be specified that two or more of the TCI states can be selected. In some examples, one or more selected TCI states may indicate one or more parameters for configuring a QCL relationship between demodulation reference signal (DMRS) ports for receiving downlink random access messages. If the PDCCH order 225 triggers a CBRA procedure, UE 115-a may ignore one or more rules for selecting a TCI state. UE 115-a may instead determine the QCL assumption based on the measured SSB associated with the CBRA. That is, one or more rules may be applicable to CFRA procedures, but may not be applicable to CBRA procedures. Additionally or alternatively, one or more rules may not apply to CFRA procedures performed on a secondary cell (SCell).

[0104] In some examples, one or more rules may indicate that UE 115-a is not expected to receive PDCCH order 225 over two PDCCH candidates linked for PDCCH repetition. That is, if the UE 115-a receives an indication 235 that two or more PDCCH candidates are linked, the UE 115-a refrains from receiving the PDCCH order 225 transmitted over the linked PDCCH candidates. can do. In some examples, the rules are set if the PDCCH order 225 triggers CBRA (e.g., if the random access preamble index is 0), if the PDCCH order 225 triggers CFRA on the SCell, or both. , may allow reception of the PDCCH order 225 through linked PDCCH candidates. Additionally or alternatively, the rules are such that if the linked PDCCH candidates correspond to respective search space sets associated with the same CORESET (e.g., if the PDCCH candidates correspond to the same TCI state), then ordering the PDCCH through the linked PDCCH candidates (e.g., 225) can be accepted. In some examples, the rules may allow receipt of a PDCCH order 225 over linked PDCCH candidates if the linked PDCCH candidates correspond to individual search space sets associated with different CORESETs each associated with the same TCI state. there is.

[0105] Thereby, the UE 115 as described herein performs a random access procedure according to a configured set of rules for performing a random access procedure in response to a PDCCH order 225 received via PDCCH candidates linked for PDCCH reception. The procedure can be performed. The rules may specify instructions for performing a random access procedure by the UE 115, which may provide improved reliability, efficiency, and accuracy of the random access procedure corresponding to PDCCH ordering.

[0106] 3A and 3B illustrate examples of search space set configurations 300-a and 300-b supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Search space set configurations 300-a and 300-b may implement or be implemented by some aspects of wireless communication systems 100 or 200. For example, search space set configurations 300-a and 300-b are example configurations for UE 115 that may represent an example of UE 115 as described with reference to FIGS. 1 and 2. Examples can be given.

[0107] UE 115 may be configured to monitor one or more (e.g., up to five) CORESETs in the CC's BWP. As described with reference to Figure 2, CORESET may include a quantity of search space sets 305 (e.g., up to 10 search space sets 305 in the BWP of a CC). Accordingly, each search space set 305 may correspond to a single CORESET (and, eg, a single corresponding TCI state). Search space sets 305 may be in an RRC configuration, comprising one or more slots 320 in the time domain and one or more symbols 315 within one or more subchannels in the frequency domain (e.g., OFDM symbols 315). ) may include sets of time and frequency resources spanning. The RRC configuration for each search space set 305 includes the associated CORESET, monitoring opportunities 310 within the search space set 305, and the type of search space set 305 (e.g., common search space (CSS) or USS ( UE-specific search space), one or more DCI formats for the UE 115 to monitor within the search space set 305, the quantity of PDCCH candidates in the search space set 305 for each aggregation level, Or any combination thereof may be indicated. Resources within the search space set 305 may be contiguous or non-contiguous in time and frequency. For example, monitoring opportunities 310 within a search space set may be distributed across one or more symbols 315, slots 320, subchannels, or any combination thereof.

[0108] Monitoring opportunities 310 within the search space set 305 may be organized according to the monitoring slot periodicity, offset, and symbols 315 within the slot 320 . That is, the UE 115 may identify the location of each monitoring opportunity 310 within the search space set 305 based on the RRC configuration for the search space set 305. Each monitoring opportunity 310 may include one or more PDCCH candidates, which may include time and frequency resources for reception of DCI. Each PDCCH candidate may correspond to an aggregation level and may be configured with a candidate index in each search space set 305. As described with reference to FIG. 2, UE 115 may perform blind decoding of each monitoring opportunity 310 and the corresponding PDCCH candidate to receive DCI.

[0109] In some examples, two or more search space sets 305 may be linked for PDCCH repetition. UE 115 may receive an indication of linked search space sets via RRC configuration. In some examples, the indication of linked search space sets may indicate linked PDCCH candidates. For example, UE 115 may identify linked monitoring opportunities 310 within search space sets 305 and linked PDCCH candidates within monitoring opportunities 310 according to one or more rules indicated in the RRC configuration. You can. 3A and 3B illustrate example search space set configurations 300-a and 300-b for linked search space sets 305 containing linked PDCCH candidates.

[0110] 3A illustrates an example search space set configuration 300-a for a first search space set 305-a and a second search space set 305-b. Search space set configuration 300-a illustrates a first search space set's monitoring opportunity 310-a and a second search space set's monitoring opportunity 310-b within slot 320-a. Monitoring opportunities 310-a and 310-b may include a subset of time and frequency resources within the respective first and second search space sets 305-a and 305-b.

[0111] UE 115 may receive an indication (e.g., via RRC signaling) that the first search space set 305-a and the second search space set 305-b are linked for PDCCH repetition. UE 115 may determine that monitoring opportunity 310-a and monitoring opportunity 310-b are linked for PDCCH repetition based on one or more rules. For example, the rules may indicate a one-to-one mapping between monitoring opportunities 310 of different search space sets 305.

[0112] UE 115 may determine one or more pairs of linked PDCCH candidates within linked monitoring opportunities 310-a and 310-b according to the aggregation level and candidate index of the individual PDCCH candidates. For example, each search space set 305 may be configured to include the same quantity of PDCCH candidates for each aggregation level. Accordingly, the UE 115 identifies the first PDCCH candidate in monitoring opportunity 310-a corresponding to the first aggregation level, and in monitoring opportunity 310-b also corresponding to the first aggregation level. The second PDCCH candidate can be identified. UE 115 may determine that the first and second PDCCH candidates are linked for PDCCH repetition based on the RRC configuration, the one-to-one mapping between monitoring opportunities 310-a and 310-b, and the first aggregation level. there is. In the example of search space set configuration 300-a, UE 115 monitors a first search space set 305-a with a monitoring opportunity 310-a and a second search space set 305-b with a monitoring opportunity. Three sets of PDCCH candidates linked between 310-b can be identified (e.g., indicated by three arrows between monitoring opportunities 310-a and 310-b). DCI may be transmitted on one or both PDCCH candidates of each linked PDCCH candidate pair.

[0113] 3B illustrates a second example search space set configuration 300-b for a first search space set 305-a and a second search space set 305-b. In an example of search space set configuration 300-b, first search space set 305-a may include two monitoring opportunities 310-d and 310-e within slot 320-b; , the second search space set 305-b may include two monitoring opportunities 310-c and 310-f within the same slot 320-b.

[0114] UE 115 may receive an indication that first search space set 305-a and second search space set 305-b are linked for PDCCH repetition, as described with reference to FIG. 3A. . UE 115 may identify a one-to-one mapping between monitoring opportunities 310-c and 310-d and a one-to-one mapping between monitoring opportunities 310-e and 310-f within slot 320-b. there is.

[0115] The UE 115 may select one or more pairs of linked PDCCH candidates within each pair of linked monitoring opportunities 310 according to the aggregation level and candidate index of the individual PDCCH candidates, as described with reference to FIG. 3A. can decide. For example, the UE 115 may be linked between a monitoring opportunity 310-d in the first set of search spaces 305-a and a monitoring opportunity 310-c in the second set of search spaces 305-b. Three sets of PDCCH candidates can be identified (e.g., indicated by three arrows between monitoring opportunities 310-c and 310-d). The UE 115 selects three of the PDCCH candidates linked between the monitoring opportunity 310-e of the first search space set 305-a and the monitoring opportunity 310-f of the second search space set 305-b. Sets may be identified (e.g., indicated by three arrows between monitoring opportunities 310-e and 310-f). DCI may be transmitted on one or both PDCCH candidates of each linked PDCCH candidate pair.

[0116] As such, search space set configurations 300-a and 300-b may illustrate intra-slot PDCCH repetition. In some example search space set configurations 300 that are different from search space set configurations 300-a and 300-b, a first monitoring opportunity 310 in a first slot 320 and corresponding first PDCCH candidates may be linked to the second monitoring opportunity 310 and the corresponding second PDCCH candidates 320 within the second slot 320 (eg, inter-slot PDCCH repetition).

[0117] A UE 115 configured with one of the search space set configurations 300-a and 300-b configures the linked search space sets 305, linked monitoring, before decoding the DCI received via the linked PDCCH candidates. Opportunities 310 and linked PDCCH candidates may be identified. UE 115 may or may not perform soft combination to decode DCI received via linked PDCCH candidates. In some examples, the PDCCH order may be transmitted to UE 115 via linked PDCCH candidates, as described with reference to FIG. 2.

[0118] When a PDCCH order is received by UE 115 over linked PDCCH candidates, UE 115 may not know when to transmit a random access request message after receiving the PDCCH order, or UE 115 may not know when to transmit a random access request message after receiving the PDCCH order. It may not know which QCL assumption to use for reception of random access messages, or both.

[0119] To reduce the effects of PDCCH repetition on the random access procedure, UE 115 as described herein may be configured with a set of rules related to the reception of PDCCH orders via linked PDCCH candidates. The rules may indicate a timeline for transmission of a random access request message, one or more parameters for selecting a TCI state to use as a basis for QCL assumptions for reception of one or more downlink random access messages, or both. This can improve the reliability of the random access procedure. Additionally or alternatively, the rules may indicate that UE 115 may refrain from receiving a PDCCH order via linked PDCCH candidates. Aspects of the constructed rules are described in more detail elsewhere herein, including with reference to FIGS. 4A and 4B.

[0120] 4A and 4B illustrate examples of random access timelines 400-a and 400-b supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Random access timelines 400-a and 400-b may implement or be implemented by some aspects of wireless communication systems 100 or 200 or search space set configurations 300-a or 300-b. there is. For example, random access timelines 400-a and 400-b may illustrate example timelines for a random access procedure performed by UE 115 and base station 105, as shown in FIG. 1 Examples of the UE 115 and the base station 105 may be expressed as described with reference to FIGS. 3 through 3. In some examples, UE 115 may receive a PDCCH order via linked PDCCH candidates 405, as described with reference to FIGS. 1-3. UE 115 may generate a random order corresponding to a PDCCH order according to one or more rules related to receipt of a PDCCH order via linked PDCCH candidates, as illustrated by random access timelines 400-a and 400-b. Access procedures can be performed.

[0121] 4A illustrates a first random access timeline 400-a supporting downlink control channel repetition for downlink control channel ordering, in accordance with aspects of the present disclosure. In the example of random access timeline 400-a, UE 115 may receive an indication via RRC signaling that PDCCH candidates 405-a and 405-b are linked for PDCCH repetition. For example, UE 115 may receive RRC signaling indicating two search space sets linked for PDCCH repetition. As described with reference to FIGS. 3A and 3B, in response to receiving RRC signaling, UE 115 identifies linked monitoring opportunities within search space sets and one or more rules indicated via RRC signaling. Accordingly, linked PDCCH candidates 405-a and 405-b can be identified within linked monitoring opportunities. Additionally or alternatively, UE 115 may configure the linked PDCCH based on a configuration or indication received via other control signaling (e.g., DCI, medium access control-control element (MAC-CE), or some other control signaling). Candidates 405-a and 405-b may be identified. UE 115 may be configured to monitor linked PDCCH candidates 405-a and 405-b for DCI. In some examples, UE 115 may perform soft combination before receiving DCI on both linked PDCCH candidates 405-a and 405-b. Each of PDCCH candidates 405-a and 405-b may include a set of PDCCH resources 435 (e.g., time and frequency resources allocated for the PDCCH). The PDCCH resources 435 of the first PDCCH candidate 405-a may or may not be adjacent in time and frequency to the PDCCH resources 435 of the second PDCCH candidate 405-b. In some examples, PDCCH candidate 405 may be referred to as a downlink control channel candidate.

[0122] As described herein, UE 115 selects a first PDCCH candidate 405-a, a first PDCCH for PDCCH repetition, according to one or more rules related to the reception of a PDCCH order over linked PDCCH candidates 405. A PDCCH order may be received via a second PDCCH candidate 405-b linked to the candidate 405-a, or both (e.g., when the UE 115 soft combines the PDCCH candidates 405). . One or more rules may be configured (e.g., pre-configured) at UE 115. Additionally or alternatively, UE 115 may receive an indication of one or more rules via control signaling from base station 105 or some other network entity.

[0123] In some examples, one or more rules may indicate a timeline for the UE 115 to perform a random access procedure in response to a PDCCH order received via linked PDCCH candidates 405. Performing a random access procedure involves, by the UE 115, performing uplink random access during a PRACH opportunity 410-a (e.g., a set of PRACH resources 440 allocated for transmitting an uplink random access message). It may include sending a message (e.g., Msg 1). The uplink random access message may be an example of the random access request message 230 described with reference to FIG. 2.

[0124] One or more rules may indicate that the critical delay period 420-a between the PDCCH order and the PRACH opportunity 410-a begins after the last symbol of the reference PDCCH candidate 405 of the linked PDCCH candidates 405. You can. That is, the reference PDCCH candidate 405 may trigger the critical delay period 420-a. The reference PDCCH candidate 405 may, in some examples, correspond to a PDCCH candidate 405 that ends later in time. Referring to FIG. 4A, the second PDCCH candidate 405-b may end later in time than the first PDCCH candidate 405-a, and accordingly the critical delay period 420-a is the second PDCCH candidate (405-b). It can start after the last symbol in 405-b). Accordingly, the second PDCCH candidate 405-b may be referred to as the reference PDCCH candidate 405-b. In some examples, the second PDCCH candidate 405-b may start earlier, but may end later in time, than the first PDCCH candidate 405-a. The critical delay period 420-a is independent of whether the first PDCCH candidate 405-a starts earlier in time or the second PDCCH candidate 405-b starts earlier in time and the PDCCH order is Regardless of whether received on the PDCCH candidate 405-a or the second PDCCH candidate 405-b, or both, the reference PDCCH candidate 405-b (e.g., one that terminates later in time) It may start after the last symbol of the PDCCH candidate (405)).

[0125] In some examples, threshold delay period 420-a is a first time period (e.g., N ₂ ) for PUSCH preparation depending on a capability of UE 115 (e.g., processing capability 1), UE 115 A second time period for random access preparation by (e.g. ) (e.g. a delay period of 0.5 ms for FR1, 0.25 ms for FR2, or some other delay period), a third time period for BWP switching (e.g. ), a fourth time period (e.g., for uplink switching) ), or a combination thereof. In some examples, the third and/or fourth time period(s) may be 0 when there is no BWP switching or uplink switching, respectively.

[0126] UE 115 may transmit an uplink random access message to base station 105 over PRACH resources 440 during the identified PRACH opportunity 410-a. PRACH opportunity 410-a may begin upon or after the expiration of critical delay period 420-a. If the PDCCH order triggers a CFRA, the UE 115 determines the timing of the PRACH opportunity 410-a (e.g., PRACH opportunity 410-a) based on the indication received via the PDCCH order. ) can be determined. For example, a PRACH opportunity 410-a may be indicated via the SSB index field of the PDCCH order, the PRACH mask index field of the PDCCH order, or both, as described with reference to FIG. 2. Once the PDCCH order triggers the CBRA, the UE 115 determines the timing of the PRACH opportunity 410-a (e.g., the start symbol of the PRACH opportunity 410-a) based on the measured SSB. ) can be determined.

[0127] In some examples, linked PDCCH candidates 405-a and 405-b may correspond to the same TCI state. For example, PDCCH candidates 405-a and 405-b may correspond to first and second search space sets, respectively, associated with the same CORESET and corresponding TCI state. Additionally or alternatively, the first and second PDCCH candidates 405-a and 405-b are respectively in the first and second search space sets associated with the first and second CORESETs, respectively, corresponding to the same TCI state. We can respond. In these cases, UE 115 may use the TCI state as the basis for the QCL assumption 425-a to be applied to the reception of one or more downlink random access messages. The TCI state may correspond to the beam used for reception of control information through the individual PDCCH candidate 405.

[0128] In other examples, the first PDCCH candidate 405-a may be associated with a first TCI state, and the second PDCCH candidate 405-b may be associated with a second TCI state that is different from the first TCI state ( For example, PDCCH candidates 405 may correspond to different CORESETs associated with different TCI states), one or more rules may specify the QCL assumption 425-a that the UE 115 will apply to the reception of one or more downlink random access messages. ) can be provided. QCL assumption 425-a may be associated with at least one of a first TCI state and a second TCI state.

[0129] Downlink random access messages may be a DCI transmitted on PDCCH candidate 405-c including PDCCH resources 435, a RAR message transmitted on PDSCH resources 445 during PDSCH opportunity 415-a, or Can include both. DCI (eg, DCI format 1_0) may include a CRC scrambled by a random access radio network temporary identifier (RA-RNTI). DCI may schedule PDSCH opportunities 415-a for transmission of RAR messages. A RAR message (e.g., a downlink RAR message) may be transmitted by base station 105 in response to an uplink random access message.

[0130] In the example of random access timeline 400-a, one or more rules allow UE 115 to select a first PDCCH candidate 405-a as a basis for QCL assumption 425-a based on one or more parameters. A command may be given to select either the first TCI state associated with the first TCI state or the second TCI state associated with the second PDCCH candidate 405-b. In one example, the rules may specify that selection of the first or second TCI state is based on the relative timing of the first PDCCH candidate 405-a and the second PDCCH candidate 405-b. For example, the rules may specify that the selection of the TCI state is based on which PDCCH candidate 405 starts earlier in time, starts later in time, ends earlier in time, or ends later in time. . In one example, if the rules specify that the selection is made based on which PDCCH candidate 405 terminates later in time, the UE 115 selects the second PDCCH candidate 405 as the basis for the QCL assumption 425-a. The second TCI state associated with -b) can be selected.

[0131] In another example, the rules may be such that the selection of the first or second TCI state is based on the first search space set ID and the second search space set corresponding to (e.g., including) the first PDCCH candidate 405-a. It may be specified that it is based on the relative values of the second search space set ID of the second search space set corresponding to (eg, including) the PDCCH candidate 405-b. The rules may specify that selection of the TCI state is based on which search space set ID has a higher value or which search space set ID has a lower value. In one example, the value of the first search space set ID may be less than the value of the second search space set ID. If the rules specify that the selection is based on which search space ID has a lower value, the UE 115 selects the first TCI associated with the first PDCCH candidate 405-a as the basis for the QCL assumption 425-a. You will select a state.

[0132] In another example, the rules may be such that the selection of the first or second TCI state determines the first CORESET ID and the second PDCCH associated with the first search space set corresponding to (e.g., including) the first PDCCH candidate 405-a. It may be specified that it is based on the relative values of the second CORESET ID associated with the second search space set corresponding to (e.g., including) the candidate 405-b. The rules may specify that selection of TCI state is based on which CORESET ID has a higher value or which CORESET ID has a lower value. In one example, the value of the second CORESET ID may be greater than the value of the first CORESET ID. If the rules specify that the selection is based on which CORESET ID has a greater value, the UE 115 may select the second TCI state associated with the second PDCCH candidate 405-b as the basis for the QCL assumption 425-a. will choose.

[0133] In another example, the rules may specify that the selection of the first or second TCI state is based on the first TCI state ID associated with the first TCI state of the first PDCCH candidate 405-a and the second TCI state ID of the second PDCCH candidate 405-b. It can be specified that it is based on the relative values of the second TCI state ID associated with the TCI state. The rules may specify that selection of the TCI state is based on which TCI state ID has a higher value or which TCI state ID has a lower value. In one example, the first value of the first TCI state may be lower than the second value of the second TCI state. If the rules specify that the selection is based on which TCI state ID has a lower value, then the UE 115 selects the first TCI associated with the first PDCCH candidate 405-a as the basis for the QCL assumption 425-a. You will select a state. Although four example parameters for selecting a TCI state are described, one or more rules may specify any quantity of parameters or identifiers for selecting a TCI state to use as a basis for QCL assumptions 425-a. I understand this.

[0134] One or more parameters for selecting a TCI state from the first TCI state associated with the first PDCCH candidate 405-a or the second TCI state associated with the second PDCCH candidate 405-b include: primary cell (PCell), It may be applicable if the PDCCH order triggers CFRA (e.g., the random access preamble index in the PDCCH order is non-zero) for the primary-secondary cell (PSCell), or both. Otherwise, the TCI state for identifying the QCL assumption 425-a for reception of downlink messages may not depend on one or more TCI states associated with the PDCCH order, and the UE 115 may determine the measured SSB, or QCL assumption 425-a may be identified based on some other signaling.

[0135] For example, if a PDCCH order triggers CBRA, the QCL for the first TCI state associated with the first PDCCH candidate 405-a, the second TCI state associated with the second PDCCH candidate 405-b, or both The dependency of assumption 425-a may not be applicable and UE 115 may identify QCL assumption 425-a based on the measured SSB associated with the CBRA procedure. If the PDCCH order triggers CBRA on the SCell, the PDCCH order can be received on the SCell, and the DCI with RA-RNTI and the corresponding RAR message can be received on the PCell. Accordingly, TCI states associated with the reception of a PDCCH order on the SCell may not apply to the reception of a DCI, RAR message, or both on the PCell.

[0136] Accordingly, in the example of Figure 4A, UE 115 receives a PDCCH order via linked PDCCH candidates 405-a and 405-b, as illustrated by random access timeline 400-a, and It may consist of one or more rules for performing a random access procedure in response to an order. One or more rules may indicate a timeline for performing a random access procedure in response to a PDCCH order. Additionally or alternatively, one or more rules may be applied to the first and second linked PDCCH candidates 405-a for use as a basis for the QCL assumption 425-a to be applied to the reception of one or more downlink random access messages. and 405-b) may specify guidelines for selecting a TCI state from the first TCI state or the second TCI state, respectively.

[0137] 4B illustrates a second random access timeline 400-b supporting downlink control channel repetition for downlink control channel ordering, in accordance with aspects of the present disclosure. The random access timeline 400-b may be an example of the random access timeline 400-a described with reference to FIG. 4A. For example, the random access timeline 400-b receives a PDCCH order through at least one of the linked PDCCH candidates 405-d and 405-e, according to the QCL assumption 425-b, and A timeline for transmitting a random access message and receiving one or more downlink random access messages can be illustrated.

[0138] The UE 115 may receive an indication that the first PDCCH candidate 405 - d and the second PDCCH candidate 405 - e are linked for PDCCH repetition, and the UE 115 may connect the linked PDCCH candidates 405 ) may receive a PDCCH order through the first PDCCH candidate 405-d, the second PDCCH candidate 405-e, or both, according to one or more rules related to the reception of the PDCCH order through ). One or more rules are such that the threshold delay period 420-b between receipt of the PDCCH order and transmission of the uplink random access message during the PRACH opportunity 410-b ends later in time, as described with reference to FIG. 4A. It can be specified that it can start after the last symbol of the PDCCH candidate 405 (eg, the second PDCCH candidate 405-e).

[0139] The first PDCCH candidate 405-d may be associated with a first TCI state, and the second PDCCH candidate 405-e may be associated with a second TCI state that is different from the first TCI state (e.g., PDCCH order may be received via different beams in each PDCCH candidate 405-d and 405-e). UE 115 may identify a QCL assumption 425-b to apply to reception of one or more downlink random access messages according to one or more rules. In the example of random access timeline 400-b, QCL assumption 425-b may correspond to both a first TCI state and a second TCI state according to one or more rules. The UE 115 determines the first TCI state and the second PDCCH candidate associated with the first PDCCH candidate 405-d as a basis for the QCL assumption 425-b to be applied to the reception of the DCI, the reception of the RAR message, or both. Both second TCI states associated with 405-e may be selected. For example, one or more rules may configure a multi-TCI state PDSCH, with the corresponding downlink random access messages to which the first and second TCI states can be applied, via two PDCCH candidates 405 linked for PDCCH repetition. When transmitted via, or both, both the first and second TCI states associated with the first and second linked PDCCH candidates 405-d and 405-e correspond to the QCL assumption 425-b. It is possible to specify what can be used as a basis for

[0140] In the random access timeline 400-b, the DCI with RA-RNTI is received via the third PDCCH candidate 405-f, the fourth PDCCH candidate 405-g, or both linked for PDCCH repetition. It can be. UE 115 may receive an indication that the third PDCCH candidate 405-f and the fourth PDCCH candidate 405-g are linked. Accordingly, the UE 115 uses the first PDCCH candidate 405-d as a basis for the QCL assumption 425-b to be applied to the reception of DCI over the third and fourth PDCCH candidates 405-f and 405-g. Both the first TCI state associated with and the second TCI state associated with the second PDCCH candidate 405-e may be selected.

[0141] In some examples, one or more rules may be configured if the RAR message is received on a multi-TCI state PDSCH that varies in one or more of spatial division multiplexing (SDM), FDM, TDM, or single frequency network schemes (e.g., each DMRS of the PDSCH A port and each data layer may be associated with first and second TCI states), a QCL assumption that the first and second TCI states will be applied to the reception of a RAR message scheduled by a DCI with an RA-RNTI (425 It is possible to specify what can be selected as the basis for -b). In the example of random access timeline 400-b, the RAR message includes a first PDSCH opportunity 415-b including a first set of PDSCH resources 445 and a second set of PDSCH resources 445. It may be received through a second PDSCH opportunity 415-c including. That is, in the example of FIG. 4B, the RAR message may be transmitted on a multi-TCI state PDSCH using TDM. Accordingly, the UE 115 may select both the first TCI state and the second TCI state as the basis for the QCL assumption 425-b, and the UE 115 may select the QCL assumption 425-b upon receipt of the RAR message. b) is applicable.

[0142] One or more rules for selecting the first and second TCI states as the basis for the QCL assumption 425-b may be configured to determine if the PDCCH order triggers a CFRA on the PCell, PSCell, or both (e.g., random access within the PDCCH order) It may be applicable (if the preamble index is not 0). Otherwise, the TCI state for identifying the QCL assumption 425-b for reception of downlink messages may not depend on one or more TCI states associated with the PDCCH order, and the UE 115 may determine the As described in further detail, QCL assumptions 425-b may be identified based on the measured SSB, or some other signaling.

[0143] Accordingly, a UE 115 as described herein may receive a PDCCH order via two or more linked PDCCH candidates and one or more rules for performing a random access procedure with the base station 105 corresponding to the PDCCH order. It can be composed of: As described with reference to random access timelines 400-a and 400-b, one or more rules define a timeline for performing a random access procedure in response to a PDCCH order received via linked PDCCH candidates. may indicate, one or more rules may specify a QCL assumption 425 to use for reception of downlink random access messages in response to a PDCCH order received via linked PDCCH candidates, or both. . That is, one or more rules may be related to receiving, processing, and responding to a PDCCH order received via linked PDCCH candidates.

[0144] Additionally or alternatively, one or more rules may specify whether a PDCCH order can be received by UE 115 via linked PDCCH candidates 405. For example, one or more rules may specify that the UE 115 may not be expected to receive a PDCCH order with two PDCCH candidates 405 linked for repetition (e.g., PDCCH repetition PDCCH orders with PDCCH may not be allowed). In these cases, the UE 115 may receive a PDCCH order via a PDCCH candidate 405 that is not linked with other PDCCH candidates 405 for PDCCH repetition. Additionally or alternatively, one or more rules may be set if the PDCCH candidates correspond to the same TCI state, if the PDCCH order triggers CBRA, if the PDCCH order triggers CFRA on the SCell, or any combination thereof. , may allow reception of a PDCCH order through two linked PDCCH candidates 405.

[0145] 5 illustrates an example of a process flow 500 supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Process flow 500 may implement or be implemented by some aspects of wireless communication system 100 or 200. For example, process flow 500 may include UE 115-b and base station 105-b, which may be examples of UE 115 or base station 105 as described with reference to FIGS. 1-4. may include. In some examples, UE 115-b may be configured with one or more rules related to receipt of a PDCCH order via linked PDCCH candidates.

[0146] It is understood that the devices and nodes described by process flow 500 may communicate with or be coupled with other devices or nodes not illustrated. For example, UE 115-b and base station 105-b may communicate with one or more other UEs 115, base stations 105, or other devices. The following alternative examples may be implemented, where some steps may be performed in a different order than described or not performed at all. In some cases, a step may include additional features not mentioned below or additional steps may be added.

[0147] At 505, base station 105-b may transmit, and UE 115-b may receive, an indication of linked downlink control channel candidates. For example, UE 115-b may receive an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for a downlink control channel repetition (e.g., PDCCH repetition).

[0148] At 510, base station 105-b may transmit, and UE 115-b may receive, a downlink control channel order requesting UE 115-b to participate in a random access procedure. The downlink control channel order may be transmitted and received via one or both of the first downlink control channel candidate and the second downlink control channel candidate.

[0149] At 515, the UE 115-b and the base station 105-b perform a random access request associated with a downlink control channel order according to one or more rules related to receipt of the downlink control channel order via linked downlink control channel candidates. The procedure can be performed. In some examples, performing a random access procedure at 515 includes transmitting, by the UE 115-b, an uplink random access message (e.g., Msg 1) to the base station 105-b according to one or more rules. may include

[0150] 6 illustrates an example of a process flow 600 supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Process flow 600 may implement or be implemented by some aspects of wireless communication system 100 or 200. For example, process flow 600 may include UE 115-c and base station 105-c, which may be examples of UE 115 or base station 105 as described with reference to FIGS. 1-5. may include. In some examples, UE 115-c may be configured with one or more rules related to receipt of a PDCCH order via linked PDCCH candidates.

[0151] It is understood that the devices and nodes described by process flow 600 may communicate with or be coupled with other devices or nodes not illustrated. For example, UE 115-c and base station 105-c may communicate with one or more other UEs 115, base stations 105, or other devices. The following alternative examples may be implemented, where some steps may be performed in a different order than described or not performed at all. In some cases, a step may include additional features not mentioned below or additional steps may be added.

[0152] At 605, base station 105-c may transmit, and UE 115-c may receive, a downlink control channel order requesting UE 115-c to participate in a random access procedure. The downlink control channel order may be received according to one or more rules relating to the receipt of downlink control channel orders over a number of downlink control channel candidates linked for downlink control channel repetition. In some examples, UE 115-c may receive a downlink control channel order via a downlink control channel candidate that is not linked with other downlink control channel candidates for repetition according to one or more rules. Additionally or alternatively, the UE 115-c may be configured to downlink via at least one of the first downlink control channel candidate or the second downlink control channel candidate that is linked for downlink control channel repetition according to one or more rules. Link control channel orders can be received.

[0153] At 610, base station 105-c and UE 115-c may perform a random access procedure based on a downlink control channel order received according to one or more rules. In some examples, performing the random access procedure at 605 may include transmitting, by the UE 115-c, an uplink random access message to the base station 105-c.

[0154] FIG. 7 shows a block diagram 700 of a device 705 that supports downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Device 705 may be an example of aspects of UE 115 as described herein. Device 705 may include a receiver 710, a transmitter 715, and a communication manager 720. Device 705 may also include one or more processors, a memory coupled to the one or more processors, and a device executable by the one or more processors to enable the one or more processors to perform the downlink control channel repetition features discussed herein. It may contain instructions stored in memory. Each of these components may communicate with each other (eg, via one or more buses).

[0155] Receiver 710 receives packets, user data, control, and associated packets from various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel ordering). A means for receiving information, such as information or any combination thereof, may be provided. Information may be passed on to other components of device 705. Receiver 710 may utilize a single antenna or a set of multiple antennas.

[0156] Transmitter 715 may provide a means for transmitting signals generated by other components of device 705. For example, transmitter 715 may transmit packets associated with various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel ordering), Information such as user data, control information, or any combination thereof may be transmitted. In some examples, transmitter 715 may be co-located with receiver 710 of a transceiver module. Transmitter 715 may utilize a single antenna or a set of multiple antennas.

[0157] Communication manager 720, receiver 710, transmitter 715, or various combinations thereof, or various components thereof, may perform various aspects of downlink control channel repetition for downlink control channel ordering as described herein. These may be examples of means to perform. For example, communication manager 720, receiver 710, transmitter 715, or various combinations or components thereof may support methods for performing one or more of the functions described herein.

[0158] In some examples, communication manager 720, receiver 710, transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., in communication management circuitry). Hardware may include a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or in the present disclosure. It may include any combination of these that constitutes or otherwise supports means for performing the described functions. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0159] Additionally or alternatively, in some examples, communication manager 720, receiver 710, transmitter 715, or various combinations or components thereof may be implemented as code executed by a processor (e.g., communication management software or as firmware). If implemented as code executed by a processor, the functions of communication manager 720, receiver 710, transmitter 715, or various combinations or components thereof may be implemented in a general purpose processor, DSP, central processing unit (CPU), or ASIC. , FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting means for performing the functions described in this disclosure).

[0160] In some examples, communication manager 720 is configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in conjunction with receiver 710, transmitter 715, or both. It can be. For example, communication manager 720 may receive information from receiver 710, may transmit information to transmitter 715, or may receive information, transmit information, or various other functions as described herein. It may be integrated with a receiver 710, a transmitter 715, or both in combination to perform other operations.

[0161] Communication manager 720 may support wireless communications at the UE according to examples as disclosed herein. For example, communications manager 720 may be configured as or otherwise support means for receiving an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition. there is. The communications manager 720 is configured as means for receiving, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure. This may be configured or otherwise supported. Communications manager 720 may or may not be configured as a means for performing a random access procedure associated with downlink control channel orders according to one or more rules relating to receipt of downlink control channel orders via linked downlink control channel candidates. If not, we can support it.

[0162] Additionally or alternatively, communication manager 720 may support wireless communications at the UE according to examples as disclosed herein. For example, communications manager 720 may be configured as a means for receiving or otherwise support a downlink control channel order requesting a UE to participate in a random access procedure, wherein the downlink control channel order is a downlink control channel order. Received according to one or more rules relating to the reception of downlink control channel orders over a number of downlink control channel candidates linked for channel repetition. Communications manager 720 may be configured as or otherwise support means for performing a random access procedure based on a downlink control channel order received according to one or more rules.

[0163] Control device 705 (e.g., receiver 710, transmitter 715, communication manager 720, or combination thereof) by including or configuring a communication manager 720 according to examples as described herein. A processor (or or otherwise coupled thereto) may support techniques for reduced processing and more efficient utilization of communication resources. For example, by performing a random access procedure according to one or more configured rules for device 705, the processor of device 705 can perform more accurate transmission and reception, which improves the reliability of the random access procedure. and thereby reduce processing (e.g., by reducing the quantity of retransmissions). In some examples, a processor of device 705 may receive and decode DCI received via linked PDCCH candidates, which may improve the reliability of the DCI, provide more efficient utilization of communication resources, and reduce processing. You can.

[0164] 8 shows a block diagram 800 of a device 805 that supports downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Device 805 may be an example of aspects of device 705 or UE 115 as described herein. Device 805 may include a receiver 810, a transmitter 815, and a communication manager 820. Device 805 may also include a processor. Each of these components may communicate with each other (eg, via one or more buses).

[0165] Receiver 810 receives packets, user data, and control signals associated with various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel ordering). A means for receiving information, such as information or any combination thereof, may be provided. Information may be passed to other components of device 805. Receiver 810 may utilize a single antenna or a set of multiple antennas.

[0166] Transmitter 815 may provide a means for transmitting signals generated by other components of device 805. For example, transmitter 815 may transmit packets associated with various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel order), Information such as user data, control information, or any combination thereof may be transmitted. In some examples, transmitter 815 may be co-located with receiver 810 of a transceiver module. Transmitter 815 may utilize a single antenna or a set of multiple antennas.

[0167] Device 805 or various components thereof may be an example of a means for performing various aspects of downlink control channel repetition for downlink control channel ordering as described herein. For example, communication manager 820 may include a linked PDCCH identification component 825, a PDCCH ordering component 830, a random access procedure component 835, or any combination thereof. Communication manager 820 may be an example of aspects of communication manager 720 as described herein. In some examples, communication manager 820 or various components thereof may perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperatively with receiver 810, transmitter 815, or both. It can be configured to perform. For example, communication manager 820 may receive information from receiver 810, may transmit information to transmitter 815, or may receive information, transmit information, or various other functions as described herein. It may be integrated with a receiver 810, a transmitter 815, or both in combination to perform other operations.

[0168] Communication manager 820 may support wireless communications at the UE according to examples as disclosed herein. Linked PDCCH identification component 825 may be configured as or otherwise support means for receiving an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. . The PDCCH ordering component 830 includes means for receiving a downlink control channel order requesting the UE to participate in a random access procedure, via one or both of the first downlink control channel candidate and the second downlink control channel candidate. It may be configured as or otherwise support this. The random access procedure component 835 is configured as means for performing a random access procedure associated with a downlink control channel order according to one or more rules related to receipt of the downlink control channel order via linked downlink control channel candidates. Or else you can support it.

[0169] Additionally or alternatively, communication manager 820 may support wireless communications at the UE according to examples as disclosed herein. The PDCCH ordering component 830 may be configured as or otherwise support a means for receiving a downlink control channel order requesting the UE to participate in a random access procedure, wherein the downlink control channel order includes downlink control channel repetition. Received according to one or more rules related to the reception of downlink control channel orders over a plurality of downlink control channel candidates linked for the purpose. Random access procedure component 835 may be configured as or otherwise support means for performing a random access procedure based on a downlink control channel order received according to one or more rules.

[0170] In some cases, linked PDCCH identification component 825, PDCCH ordering component 830, random access procedure component 835, or any combination thereof may each be a processor (e.g., a transceiver processor or radio processor, or transmitter processor, or a receiver processor) or at least part of it. The processor may be coupled with a memory, allowing the processor to perform or facilitate the features of the linked PDCCH identification component 825, PDCCH ordering component 830, and random access procedure component 835 discussed herein. You can execute commands stored in memory. The transceiver processor may be co-located with and/or communicate with (e.g., direct operations) a transceiver of the device. The radio processor may be co-located with and/or communicate with (e.g., direct operations of) the device's radios (e.g., NR radio, LTE radio, Wi-Fi radio). The transmitter processor may be co-located with and/or communicate with (e.g., direct operations) the device's transmitter. The transceiver receiver may be co-located with and/or communicate (e.g., direct operations) with the device's receiver.

[0171] 9 illustrates a block diagram 900 of a communication manager 920 supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Communication manager 920 may be an example of aspects of communication manager 720, communication manager 820, or both, as described herein. Communications manager 920 or its various components may be an example of a means for performing various aspects of downlink control channel repetition for downlink control channel ordering as described herein. For example, communication manager 920 may include a linked PDCCH identification component 925, a PDCCH ordering component 930, a random access procedure component 935, an uplink random access message component 940, and a QCL assumption component 945. , a downlink random access message component 950, a TCI selection component 955, or any combination thereof. Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0172] Communication manager 920 may support wireless communications at the UE according to examples as disclosed herein. Linked PDCCH identification component 925 may be configured as or otherwise support means for receiving an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. . The PDCCH ordering component 930 includes means for receiving a downlink control channel order requesting the UE to participate in a random access procedure, via one or both of the first downlink control channel candidate and the second downlink control channel candidate. It may be configured as or otherwise support this. The random access procedure component 935 is configured as means for performing a random access procedure associated with a downlink control channel order according to one or more rules related to receipt of the downlink control channel order via linked downlink control channel candidates. Or else you can support it.

[0173] In some examples, to assist in performing a random access procedure, uplink random access message component 940 may be configured to determine a random access opportunity for transmission of an uplink random access message in response to a downlink control channel order. It may constitute a means or otherwise support it. In some examples, to assist in performing a random access procedure, the uplink random access message component 940 is triggered by a reference downlink control channel candidate of the downlink control channel candidates to which the first symbol of the random access opportunity is linked. may be configured as or otherwise support means for transmitting an uplink random access message during a random access opportunity based on what may be after a critical delay period. In some examples, the reference downlink control channel candidate may be a second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and one or more rules may determine a threshold. It may be indicated that the delay period starts after the last symbol of the second downlink control channel candidate.

[0174] In some examples, performing the random access procedure according to one or more rules is independent of whether the downlink control channel order is received during the first downlink control channel candidate or during the second downlink control channel candidate. In some examples, the critical delay period includes a first time period for uplink shared channel preparation, a second time period for random access preparation, a third time period for BWP switching, and a third time period for uplink switching depending on the capabilities of the UE. and a fourth time period, or a combination thereof. In some examples, to assist in determining a random access opportunity, uplink random access message component 940 may be configured as a means for determining the timing of a random access opportunity based on an indication of downlink control channel order or a measured SSB. This may be configured or otherwise supported.

[0175] In some examples, downlink random access message component 950 may be configured as or otherwise support means for receiving a downlink random access message in response to an uplink random access message, wherein the downlink random access message is It is a downlink control channel message scheduling RAR message or a RAR message.

[0176] In some examples, to assist in performing a random access procedure, uplink random access message component 940 is configured as a means for transmitting an uplink random access message in response to a downlink control channel order or otherwise. This may be supported, where the first downlink control channel candidate is associated with a first TCI state, and the second downlink control channel candidate is associated with a second TCI state that is different from the first TCI state. In some examples, to assist in performing a random access procedure, QCL assumption component 945 may make a QCL assumption to be applied to reception of a downlink random access message in response to an uplink random access message, according to one or more rules. It may be configured as a means for identifying or otherwise supporting the same, and the QCL assumption is associated with at least one of a first TCI state or a second TCI state.

[0177] In some examples, to support identifying a QCL assumption, TCI selection component 955 may include means for selecting one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. may be configured as, or otherwise support, one or more rules wherein the selection of either the first TCI state or the second TCI state is based on the relative timing of the first downlink control channel candidate and the second downlink control channel candidate. Specify what to do.

[0178] In some examples, to assist in identifying a QCL assumption, TCI selection component 955 may comprise means for selecting one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. may be configured or otherwise support this, and the one or more rules may be configured such that selection of either the first TCI state or the second TCI state determines whether the first search space set corresponds to the first downlink control channel candidate. ID and the second search space set ID of the second search space set corresponding to the second downlink control channel candidate.

[0179] In some examples, to assist in identifying a QCL assumption, TCI selection component 955 may comprise means for selecting one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. may be configured or otherwise support this, wherein the one or more rules are such that selection of either the first TCI state or the second TCI state determines the first CORESET ID associated with the first search space set corresponding to the first downlink control channel candidate. and a second CORESET ID associated with a second search space set corresponding to the second downlink control channel candidate.

[0180] In some examples, to assist in identifying a QCL assumption, TCI selection component 955 may comprise means for selecting one of the first TCI state or the second TCI state as the basis for the QCL assumption according to one or more rules. The one or more rules may be configured or otherwise support such that the selection of either the first TCI state or the second TCI state determines the first TCI state ID associated with the first TCI state and the second TCI associated with the second TCI state. Specifies that it is based on the relative values of the status ID.

[0181] In some examples, to assist in identifying a QCL assumption, TCI selection component 955 may include means for selecting both a first TCI state and a second TCI state as a basis for the QCL assumption according to one or more rules. may be configured or otherwise support this, wherein one or more rules specify that the downlink random access message to which the QCL assumption may be applied is a downlink control channel message scheduling a RAR message, and the downlink control channel message is a downlink control channel message scheduling RAR message. It is transmitted through a third downlink control channel candidate and a fourth downlink control channel candidate that are linked for channel repetition.

[0182] In some examples, to assist in identifying a QCL assumption, TCI selection component 955 may include means for selecting both a first TCI state and a second TCI state as a basis for the QCL assumption according to one or more rules. The downlink random access message may be configured or otherwise support a multi-TCI state in which a downlink random access message to which QCL assumptions may be applied varies in at least one of a spatial division multiplexing, FDM, TDM, or single frequency network scheme. Specifies that it is a shared channel RAR message.

[0183] In some examples, downlink control channel ordering requests a CFRA procedure for PCell or PSCell or both. In some examples, the downlink random access message is a downlink control channel message scheduling a RAR message or a RAR message.

[0184] Additionally or alternatively, communication manager 920 may support wireless communications at the UE according to examples as disclosed herein. In some examples, PDCCH ordering component 930 may be configured as or otherwise support means for receiving a downlink control channel order requesting a UE to participate in a random access procedure, wherein the downlink control channel order is a downlink control channel order. Received according to one or more rules relating to the reception of downlink control channel orders over a number of downlink control channel candidates linked for control channel repetition. In some examples, random access procedure component 935 may be configured as or otherwise support means for performing a random access procedure based on a downlink control channel order received according to one or more rules.

[0185] In some examples, to support receiving a downlink control channel order according to one or more rules, PDCCH ordering component 930 may order a downlink control channel candidate that is not linked with other downlink control channel candidates for repetition. It may be configured as a means for receiving or otherwise support downlink control channel orders.

[0186] In some examples, to support receiving a downlink control channel order according to one or more rules, PDCCH ordering component 930 may configure a first downlink control channel candidate or a second downlink control channel candidate to be linked for a downlink control channel repetition. may be configured as or otherwise support means for receiving a downlink control channel order via at least one of the link control channel candidates, wherein the first downlink control channel candidate corresponds to a first search space set associated with CORESET and a first set of search spaces associated with the CORESET. 2 Downlink control channel candidates correspond to the second search space set associated with CORESET.

[0187] In some examples, to support receiving a downlink control channel order according to one or more rules, PDCCH ordering component 930 may configure a first downlink control channel candidate or a second downlink control channel candidate to be linked for a downlink control channel repetition. configured as or otherwise capable of supporting means for receiving a downlink control channel order via at least one of the link control channel candidates, wherein the first downlink control channel candidate is a first search associated with a first CORESET having a TCI status. The second downlink control channel candidate corresponds to a second search space set associated with a second CORESET with TCI status.

[0188] In some examples, downlink control channel ordering requests a CFRA procedure for PCell or PSCell or both.

[0189] In some cases, linked PDCCH identification component 925, PDCCH ordering component 930, random access procedure component 935, uplink random access message component 940, QCL assumption component 945, downlink random access. Each of message component 950, and TCI selection component 955 may be, or at least be part of, a processor (eg, a transceiver processor or a radio processor or a transmitter processor or a receiver processor). The processor may be coupled with a memory, where the processor may perform one of the following: linked PDCCH identification component 925, PDCCH ordering component 930, random access procedure component 935, uplink random access message component 940, May execute instructions stored in memory that may perform or facilitate features of the QCL assumption component 945, downlink random access message component 950, and TCI selection component 955.

[0190] FIG. 10 shows a diagram of a system 1000 including a device 1005 that supports downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Device 1005 may be or include an example of components of device 705, device 805, or UE 115 as described herein. Device 1005 may communicate wirelessly with one or more base stations 105, UEs 115, or any combination thereof. Device 1005 includes a communication manager 1020, an input/output (I/O) controller 1010, a transceiver 1015, an antenna 1025, a memory 1030, a code 1035, and a processor 1040. The same may include components for two-way voice and data communications, including components for transmitting and receiving communications. These components may be in electronic communication or otherwise coupled (e.g., operably, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1045). there is.

[0191] I/O controller 1010 may manage input and output signals for device 1005. I/O controller 1010 may also manage peripherals that are not integrated into device 1005. In some cases, I/O controller 1010 may represent a physical connection or port to an external peripheral device. In some cases, I/O controller 1010 may run an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, or other known operating systems. You can utilize it. Additionally or alternatively, I/O controller 1010 may represent or interact with a modem, keyboard, mouse, touchscreen or similar device. In some cases, I/O controller 1010 may be implemented as part of a processor, such as processor 1040. In some cases, a user may interact with device 1005 through I/O controller 1010 or through hardware components controlled by I/O controller 1010.

[0192] In some cases, device 1005 may include a single antenna 1025. However, in some other cases, device 1005 may have more than one antenna 1025 that can transmit or receive multiple wireless transmissions simultaneously. Transceiver 1015 may communicate bidirectionally over wired or wireless links, via one or more antennas 1025, as described herein. For example, transceiver 1015 may represent a wireless transceiver and be capable of bi-directional communication with another wireless transceiver. Transceiver 1015 may also include a modem to modulate packets, provide modulated packets to one or more antennas 1025 for transmission, and demodulate packets received from one or more antennas 1025. . Transceiver 1015, or transceiver 1015 and one or more antennas 1025, may include transmitter 715, transmitter 815, receiver 710, receiver 810, or any of these, as described herein. It may be an example of a combination or components thereof.

[0193] Memory 1030 may include random access memory (RAM) and read only memory (ROM). Memory 1030 may store computer-readable computer-executable code 1035 that includes instructions that, when executed by processor 1040, cause device 1005 to perform the operations described herein. It performs various functions. Code 1035 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, code 1035 may not be directly executable by processor 1040, but may (e.g., when compiled and executed) enable a computer to perform the functions described herein. You can. In some cases, memory 1030 may include a basic I/O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0194] Processor 1040 may be an intelligent hardware device (e.g., a general-purpose processor, DSP, CPU, microcontroller, ASIC, FPGA, programmable logic device, discrete gate or transistor logic component, discrete hardware component, or any combination thereof). It can be included. In some cases, processor 1040 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into processor 1040. Processor 1040 may store memory (e.g., functions or tasks that support downlink control channel repetition for downlink control channel ordering) to cause device 1005 to perform various functions (e.g., For example, it may be configured to execute computer readable instructions stored in memory 1030). For example, device 1005 or components of device 1005 may include processor 1040 and memory 1030 coupled to processor 1040, processor 1040, and memory configured to perform various functions described herein. It may include (1030).

[0195] Communication manager 1020 may support wireless communications at the UE according to examples as disclosed herein. For example, communications manager 1020 may be configured as or otherwise support means for receiving an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition. there is. The communication manager 1020 is configured as means for receiving, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure. This may be configured or otherwise supported. Communications manager 1020 may or may not be configured as a means for performing a random access procedure associated with a downlink control channel order according to one or more rules relating to the receipt of the downlink control channel order via linked downlink control channel candidates. If not, we can support it.

[0196] Additionally or alternatively, communication manager 1020 may support wireless communications at the UE according to examples as disclosed herein. For example, communications manager 1020 may be configured as a means for receiving or otherwise support a downlink control channel order requesting a UE to participate in a random access procedure, wherein the downlink control channel order is Received according to one or more rules relating to the reception of downlink control channel orders over a number of downlink control channel candidates linked for channel repetition. Communications manager 1020 may be configured as or otherwise support means for performing a random access procedure based on a downlink control channel order received according to one or more rules.

[0197] By including or configuring a communication manager 1020 according to examples as described herein, device 1005 can support improved communication reliability, and techniques for improved coordination between devices. For example, device 1005 may be configured with one or more rules related to receipt of a PDCCH order via linked PDCCH candidates. By receiving a PDCCH order and performing a corresponding random access procedure according to one or more rules, device 1005 can accurately determine the timeline for performing the random access procedure, the QCL assumptions for the random access procedure, or both. , which can improve communication reliability and cooperation between devices (e.g., between UE 115 and base station 105).

[0198] In some examples, communications manager 1020 may use or otherwise cooperate with transceiver 1015, one or more antennas 1025, or any combination thereof, to perform various operations (e.g., receive, monitor, transmit). It can be configured to perform. Although communications manager 1020 is illustrated as a separate component, in some examples, one or more functions described with reference to communications manager 1020 may be implemented in processor 1040, memory 1030, code 1035, or any of the same. May be supported or carried out by a combination. For example, code 1035 may include instructions executable by processor 1040 to cause device 1005 to perform various aspects of downlink control channel repetition for downlink control channel ordering as described herein. may include, or processor 1040 and memory 1030 may be otherwise configured to perform or support such operations.

[0199] FIG. 11 shows a block diagram 1100 of a device 1105 that supports downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Device 1105 may be an example of aspects of base station 105 as described herein. Device 1105 may include a receiver 1110, a transmitter 1115, and a communication manager 1120. Device 1105 may also include one or more processors, a memory coupled to the one or more processors, and a memory coupled to the one or more processors, and configured to enable the one or more processors to perform the downlink control channel ordered repetition features discussed herein. Possibly may include instructions stored in memory. Each of these components may communicate with each other (eg, via one or more buses).

[0200] Receiver 1110 receives packets, user data, and control signals associated with various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel ordering). A means for receiving information, such as information or any combination thereof, may be provided. Information may be passed on to other components of device 1105. Receiver 1110 may utilize a single antenna or a set of multiple antennas.

[0201] Transmitter 1115 may provide a means for transmitting signals generated by other components of device 1105. For example, transmitter 1115 may transmit packets associated with various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel ordering), Information such as user data, control information, or any combination thereof may be transmitted. In some examples, transmitter 1115 may be co-located with receiver 1110 of a transceiver module. Transmitter 1115 may utilize a single antenna or a set of multiple antennas.

[0202] Communication manager 1120, receiver 1110, transmitter 1115, or various combinations thereof, or various components thereof, may perform various aspects of downlink control channel repetition for downlink control channel ordering as described herein. These may be examples of means to perform. For example, communication manager 1120, receiver 1110, transmitter 1115, or various combinations or components thereof may support methods for performing one or more of the functions described herein.

[0203] In some examples, communication manager 1120, receiver 1110, transmitter 1115, or various combinations or components thereof may be implemented in hardware (e.g., in communication management circuitry). Hardware may be a processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any of these that constitute or otherwise support the means for performing the functions described in this disclosure. May include combinations. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0204] Additionally or alternatively, in some examples, communication manager 1120, receiver 1110, transmitter 1115, or various combinations or components thereof may be implemented as code executed by a processor (e.g., communication management software or as firmware). When implemented as code executed by a processor, the functions of communication manager 1120, receiver 1110, transmitter 1115, or various combinations or components thereof may be implemented in a general purpose processor, DSP, CPU, ASIC, FPGA, or ( For example, it may be performed by any combination of these or other programmable logic devices (e.g., configured as means for, or otherwise supporting, the functions described in this disclosure).

[0205] In some examples, communication manager 1120 is configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise in conjunction with receiver 1110, transmitter 1115, or both. It can be. For example, communication manager 1120 may receive information from receiver 1110, may transmit information to transmitter 1115, or may receive information, transmit information, or various other functions as described herein. It may be integrated with a receiver 1110, a transmitter 1115, or both in combination to perform other operations.

[0206] Communications manager 1120 may support wireless communications at a base station according to examples as disclosed herein. For example, communication manager 1120 is configured as means for or otherwise transmits to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. Support is available. The communication manager 1120 is configured to transmit, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in the random access procedure to the UE. It may constitute a means or otherwise support it. Communications manager 1120 is configured as means for receiving from a UE an uplink random access message associated with a downlink control channel order according to one or more rules relating to transmission of the downlink control channel order over linked downlink control channel candidates. This may be configured or otherwise supported.

[0207] Additionally or alternatively, communications manager 1120 may support wireless communications at a base station according to examples as disclosed herein. For example, communications manager 1120 may be configured as or otherwise support means for sending a downlink control channel order to a UE requesting the UE to participate in a random access procedure, and the downlink control channel order may be Transmitted according to one or more rules relating to the receipt of downlink control channel orders over a number of downlink control channel candidates linked for link control channel repetition. Communications manager 1120 may be configured as or otherwise support means for receiving a random access message from a UE based on a downlink control channel order transmitted according to one or more rules.

[0208] FIG. 12 shows a block diagram 1200 of a device 1205 that supports downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Device 1205 may be an example of aspects of device 1105 or base station 105 as described herein. Device 1205 may include a receiver 1210, a transmitter 1215, and a communication manager 1220. Device 1205 may also include a processor. Each of these components may communicate with each other (eg, via one or more buses).

[0209] Receiver 1210 receives packets, user data, control, and associated packets from various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel ordering). A means for receiving information, such as information or any combination thereof, may be provided. Information may be passed to other components of device 1205. Receiver 1210 may utilize a single antenna or a set of multiple antennas.

[0210] Transmitter 1215 may provide a means for transmitting signals generated by other components of device 1205. For example, transmitter 1215 may transmit packets associated with various information channels (e.g., control channels, data channels, information channels associated with downlink control channel repetition for downlink control channel order), Information such as user data, control information, or any combination thereof may be transmitted. In some examples, transmitter 1215 may be co-located with receiver 1210 of a transceiver module. Transmitter 1215 may utilize a single antenna or a set of multiple antennas.

[0211] Device 1205 or various components thereof may be an example of a means for performing various aspects of downlink control channel repetition for downlink control channel ordering as described herein. For example, communication manager 1220 may include a linked PDCCH identification component 1225, a PDCCH ordering component 1230, an uplink random access message component 1235, or any combination thereof. Communication manager 1220 may be an example of aspects of communication manager 1120 as described herein. In some examples, communication manager 1220 or various components thereof may perform various operations (e.g., receive, monitor, transmit) using or otherwise in conjunction with receiver 1210, transmitter 1215, or both. It can be configured to perform. For example, communication manager 1220 may receive information from receiver 1210, may transmit information to transmitter 1215, or may receive information, transmit information, or various other functions as described herein. It may be integrated with a receiver 1210, a transmitter 1215, or both in combination to perform other operations.

[0212] Communications manager 1220 may support wireless communications at a base station according to examples as disclosed herein. Linked PDCCH identification component 1225 is configured as or otherwise supports means for transmitting to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. You can. The PDCCH ordering component 1230 transmits a downlink control channel order to the UE via one or both of the first downlink control channel candidate and the second downlink control channel candidate, requesting the UE to participate in the random access procedure. It may be constituted as a means for or may otherwise support it. Uplink random access message component 1235 receives from the UE an uplink random access message associated with a downlink control channel order according to one or more rules related to transmission of the downlink control channel order over linked downlink control channel candidates. It may be constituted as a means to do so or may otherwise support it.

[0213] Additionally or alternatively, communications manager 1220 may support wireless communications at a base station according to examples as disclosed herein. PDCCH ordering component 1230 may be configured as or otherwise support a means for transmitting a downlink control channel order to a UE requesting the UE to participate in a random access procedure, wherein the downlink control channel order is a downlink control channel order. Transmitted according to one or more rules relating to the reception of downlink control channel orders over a number of downlink control channel candidates linked for repetition. Uplink random access message component 1235 may be configured as or otherwise support means for receiving a random access message from a UE based on a downlink control channel order transmitted according to one or more rules.

[0214] In some cases, linked PDCCH identification component 1225, PDCCH ordering component 1230, and uplink random access message component 1235 each include a processor (e.g., a transceiver processor or radio processor, or transmitter processor, or receiver processor). ), or at least part of it. The processor may be coupled with a memory and allow the processor to perform or facilitate the features of linked PDCCH identification component 1225, PDCCH ordering component 1230, and uplink random access message component 1235 discussed herein. Allows you to execute commands stored in memory. The transceiver processor may be co-located with and/or communicate with (e.g., direct operations) a transceiver of the device. The radio processor may be co-located with and/or communicate with (e.g., direct operations of) the device's radios (e.g., NR radio, LTE radio, Wi-Fi radio). The transmitter processor may be co-located with and/or communicate with (e.g., direct operations) the device's transmitter. The transceiver receiver may be co-located with and/or communicate (e.g., direct operations) with the device's receiver.

[0215] FIG. 13 illustrates a block diagram 1300 of a communication manager 1320 supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Communication manager 1320 may be an example of aspects of communication manager 1120, communication manager 1220, or both, as described herein. Communications manager 1320 or its various components may be an example of a means for performing various aspects of downlink control channel repetition for downlink control channel ordering as described herein. For example, communication manager 1320 may include a linked PDCCH identification component 1325, a PDCCH ordering component 1330, an uplink random access message component 1335, a QCL assumption component 1340, a downlink random access message component ( 1345), a TCI state selection component 1350, or any combination thereof. Each of these components may communicate with each other directly or indirectly (eg, via one or more buses).

[0216] Communications manager 1320 may support wireless communications at a base station according to examples as disclosed herein. Linked PDCCH identification component 1325 is configured as or otherwise supports means for transmitting to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. You can. The PDCCH ordering component 1330 transmits a downlink control channel order to the UE via one or both of the first downlink control channel candidate and the second downlink control channel candidate, requesting the UE to participate in the random access procedure. It may be constituted as a means for or may otherwise support it. Uplink random access message component 1335 receives from the UE an uplink random access message associated with a downlink control channel order according to one or more rules related to transmission of the downlink control channel order via linked downlink control channel candidates. It may be constituted as a means to do so or may otherwise support it.

[0217] In some examples, to support receiving an uplink random access message, uplink random access message component 1335 may configure the first symbol of a random access opportunity to a reference downlink control channel candidate of the linked downlink control channel candidates. and may be configured as or otherwise support means for receiving an uplink random access message during a random access opportunity based on what is after a threshold delay period that may be triggered by. In some examples, the reference downlink control channel candidate may be a second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and one or more rules may determine a threshold. It may be indicated that the delay period starts after the last symbol of the second downlink control channel candidate.

[0218] In some examples, receiving an uplink random access message according to one or more rules is independent of whether the downlink control channel order is transmitted during a first downlink control channel candidate or a second downlink control channel candidate. In some examples, the critical delay period includes a first time period for uplink shared channel preparation, a second time period for random access preparation, a third time period for BWP switching, and a third time period for uplink switching depending on the capabilities of the UE. and a fourth time period, or a combination thereof.

[0219] In some examples, the uplink random access message component 1335 may be configured as or otherwise support a means for transmitting to the UE an indication of the timing of a random access opportunity via a downlink control channel order or SSB.

[0220] In some examples, downlink random access message component 1345 may be configured as or otherwise support means for transmitting a downlink random access message in response to an uplink random access message, wherein the downlink random access message It is a downlink control channel message scheduling RAR message or a RAR message.

[0221] In some examples, QCL assumption component 1340 is configured as a means to identify or otherwise identify a QCL assumption to be applied to the transmission of a downlink random access message in response to an uplink random access message, according to one or more rules. may support, and the QCL assumption is associated with at least one of a first TCI state associated with a first downlink control channel candidate or a second TCI state associated with a second downlink control channel candidate, and the first TCI state is a second TCI state. It is different from

[0222] In some examples, TCI state selection component 1350 may be configured as or otherwise support means for selecting either a first TCI state or a second TCI state as the basis for a QCL assumption according to one or more rules. and one or more rules specify that selection of either the first TCI state or the second TCI state is based on the relative timing of the first downlink control channel candidate and the second downlink control channel candidate.

[0223] In some examples, TCI state selection component 1350 may be configured as or otherwise support means for selecting one of a first TCI state or a second TCI state as a basis for a QCL assumption according to one or more rules. , the one or more rules are such that selection of either the first TCI state or the second TCI state determines the first search space set ID of the first search space set corresponding to the first downlink control channel candidate and the second downlink control channel candidate. specifies that it is based on the relative values of the second search space set ID of the second search space set corresponding to .

[0224] In some examples, TCI state selection component 1350 may be configured as or otherwise support means for selecting one of a first TCI state or a second TCI state as a basis for a QCL assumption according to one or more rules. , one or more rules determine whether the selection of either the first TCI state or the second TCI state is related to the first CORESET ID and the second downlink control channel candidate associated with the first search space set corresponding to the first downlink control channel candidate. It specifies that it is based on the relative values of the second CORESET ID associated with the corresponding second search space set.

[0225] In some examples, TCI state selection component 1350 may be configured as or otherwise support means for selecting one of a first TCI state or a second TCI state as a basis for a QCL assumption according to one or more rules. , one or more rules such that selection of either the first TCI state or the second TCI state is based on the relative values of the first TCI state ID associated with the first TCI state and the second TCI state ID associated with the second TCI state. Be specific.

[0226] In some examples, to assist in identifying a QCL assumption, TCI state selection component 1350 may include means for selecting both a first TCI state and a second TCI state as a basis for the QCL assumption according to one or more rules. may be configured as or otherwise support the same, wherein one or more rules specify that the downlink random access message to which the QCL assumption can be applied is a downlink control channel message scheduling a RAR message, and the downlink control channel message is a downlink control channel message scheduling the RAR message. It is transmitted through a third downlink control channel candidate and a fourth downlink control channel candidate that are linked for control channel repetition.

[0227] In some examples, to assist in identifying a QCL assumption, TCI state selection component 1350 may include means for selecting both a first TCI state and a second TCI state as a basis for the QCL assumption according to one or more rules. The downlink random access message to which QCL assumptions can be applied may be configured as or otherwise support a multi-TCI state down in at least one of spatial division multiplexing, FDM, TDM, or single frequency network schemes. Specifies that it is a RAR message that is a link sharing channel.

[0228] In some examples, downlink control channel ordering requests a CFRA procedure for PCell or PSCell or both. In some examples, the downlink random access message is a downlink control channel message scheduling a RAR message or a RAR message.

[0229] Additionally or alternatively, communications manager 1320 may support wireless communications at a base station according to examples as disclosed herein. In some examples, PDCCH ordering component 1330 may be configured as or otherwise support means for transmitting a downlink control channel order to a UE requesting the UE to participate in a random access procedure, wherein the downlink control channel order includes: Transmitted according to one or more rules relating to the receipt of downlink control channel orders over a number of downlink control channel candidates linked for downlink control channel repetition. In some examples, uplink random access message component 1335 may be configured as or otherwise support means for receiving a random access message from a UE based on a downlink control channel order transmitted according to one or more rules. .

[0230] In some examples, to support transmitting a downlink control channel order according to one or more rules, PDCCH ordering component 1330 may configure a downlink control channel candidate that is not linked with other downlink control channel candidates for repetition. It may be configured as a means for transmitting or otherwise support downlink control channel orders.

[0231] In some examples, to support transmitting a downlink control channel order according to one or more rules, PDCCH order component 1330 may configure a first downlink control channel candidate or a second downlink control channel candidate to be linked for a downlink control channel repetition. and may be configured as or otherwise support means for transmitting a downlink control channel order over at least one of the link control channel candidates, wherein the first downlink control channel candidate corresponds to a first search space set associated with CORESET and a first set of search spaces associated with the CORESET. 2 Downlink control channel candidates correspond to the second search space set associated with CORESET.

[0232] In some examples, to support transmitting a downlink control channel order according to one or more rules, PDCCH order component 1330 may configure a first downlink control channel candidate or a second downlink control channel candidate to be linked for a downlink control channel repetition. may be configured as or otherwise support means for transmitting a downlink control channel order over at least one of the link control channel candidates, wherein the first downlink control channel candidate is a first search associated with a first CORESET having a TCI status. The second downlink control channel candidate corresponds to a second search space set associated with a second CORESET with TCI status.

[0233] In some examples, downlink control channel ordering requests a CFRA procedure for PCell or PSCell or both.

[0234] In some cases, linked PDCCH identification component 1325, PDCCH ordering component 1330, uplink random access message component 1335, QCL assumption component 1340, downlink random access message component 1345, and TCI. Each of the state selection components 1350 may be, or at least be part of, a processor (eg, a transceiver processor or a radio processor or a transmitter processor or a receiver processor). The processor may be coupled with a memory, and the processor may be connected to a linked PDCCH identification component 1325, a PDCCH ordering component 1330, an uplink random access message component 1335, a QCL assumption component 1340, a down May execute instructions stored in memory that may perform or facilitate features of link random access message component 1345, and TCI state selection component 1350.

[0235] FIG. 14 shows a diagram of a system 1400 including a device 1405 that supports downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. Device 1405 may be an example of or include components of device 1105, device 1205, or base station 105 as described herein. Device 1405 may wirelessly communicate with one or more base stations 105, UEs 115, or any combination thereof. Device 1405 includes communication manager 1420, network communication manager 1410, transceiver 1415, antenna 1425, memory 1430, code 1435, processor 1440, and inter-station communication manager 1445. ), such as, may include components for two-way voice and data communications, including components for transmitting and receiving communications. These components may be in electronic communication or otherwise coupled (e.g., operably, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1450). there is.

[0236] Network communications manager 1410 may manage communications with core network 130 (e.g., via one or more wired backhaul links). For example, network communications manager 1410 may manage the transmission of data communications to client devices, such as one or more UEs 115 .

[0237] In some cases, device 1405 may include a single antenna 1425. However, in some other cases, device 1405 may have more than one antenna 1425 that can transmit or receive multiple wireless transmissions simultaneously. Transceiver 1415 may communicate bidirectionally over wired or wireless links, via one or more antennas 1425, as described herein. For example, transceiver 1415 may represent a wireless transceiver and be capable of bi-directional communication with another wireless transceiver. Transceiver 1415 may also include a modem to modulate packets, provide modulated packets to one or more antennas 1425 for transmission, and demodulate packets received from one or more antennas 1425. . Transceiver 1415, or transceiver 1415 and one or more antennas 1425, may include transmitter 1115, transmitter 1215, receiver 1110, receiver 1210, or any of these, as described herein. It may be an example of a combination or components thereof.

[0238] Memory 1430 may include RAM and ROM. Memory 1430 may store computer-readable computer-executable code 1435 that includes instructions that, when executed by processor 1440, cause device 1405 to perform the operations described herein. It performs various functions. Code 1435 may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. In some cases, code 1435 may not be directly executable by processor 1440, but may (e.g., when compiled and executed) enable a computer to perform the functions described herein. You can. In some cases, memory 1430 may include a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0239] Processor 1440 may be an intelligent hardware device (e.g., a general-purpose processor, DSP, CPU, microcontroller, ASIC, FPGA, programmable logic device, discrete gate or transistor logic component, discrete hardware component, or any combination thereof). It can be included. In some cases, processor 1440 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into processor 1440. Processor 1440 may store memory (e.g., functions or tasks that support downlink control channel repetition for downlink control channel ordering) to cause device 1405 to perform various functions (e.g., For example, it may be configured to execute computer readable instructions stored in memory 1430). For example, device 1405 or components of device 1405 may include processor 1440 and memory 1430 coupled to processor 1440, processor 1440, and memory configured to perform various functions described herein. It may include (1430).

[0240] Inter-station communications manager 1445 may manage communications with other base stations 105 and includes a controller or scheduler to control communications with UEs 115 in coordination with other base stations 105. can do. For example, inter-station communications manager 1445 may coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, inter-station communications manager 1445 may provide an X2 interface within LTE/LTE-A wireless communications network technology to provide communications between base stations 105.

[0241] Communications manager 1420 may support wireless communications at a base station according to examples as disclosed herein. For example, communication manager 1420 is configured as means for or otherwise transmits to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. Support is available. The communication manager 1420 is configured to transmit, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in the random access procedure to the UE. It may constitute a means or otherwise support it. Communications manager 1420 is configured as means for receiving from a UE an uplink random access message associated with a downlink control channel order according to one or more rules relating to transmission of the downlink control channel order over linked downlink control channel candidates. This may be configured or otherwise supported.

[0242] Additionally or alternatively, communications manager 1420 may support wireless communications at a base station according to examples as disclosed herein. For example, communications manager 1420 may be configured as or otherwise support means for transmitting a downlink control channel order to a UE requesting the UE to participate in a random access procedure, and the downlink control channel order may be configured to Transmitted according to one or more rules relating to the receipt of downlink control channel orders over a number of downlink control channel candidates linked for link control channel repetition. Communications manager 1420 may be configured as or otherwise support means for receiving a random access message from a UE based on a downlink control channel order transmitted according to one or more rules.

[0243] In some examples, communications manager 1420 may use or otherwise cooperate with transceiver 1415, one or more antennas 1425, or any combination thereof, to perform various operations (e.g., receive, monitor, transmit). It can be configured to perform. Although communications manager 1420 is illustrated as a separate component, in some examples, one or more functions described with reference to communications manager 1420 may be implemented in processor 1440, memory 1430, code 1435, or any of the same. May be supported or carried out by a combination. For example, code 1435 may include instructions executable by processor 1440 to cause device 1405 to perform various aspects of downlink control channel repetition for downlink control channel ordering as described herein. may include, or processor 1440 and memory 1430 may be otherwise configured to perform or support such operations.

[0244] FIG. 15 shows a flow diagram illustrating a method 1500 of supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. The operations of method 1500 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1500 may be performed by UE 115 as described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special purpose hardware.

[0245] At 1505, the method may include receiving an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. The operations of 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by linked PDCCH identification component 925 as described with reference to FIG. 9.

[0246] At 1510, the method may include receiving a downlink control channel order requesting the UE to participate in a random access procedure, via one or both of the first downlink control channel candidate and the second downlink control channel candidate. You can. The operations of 1510 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by PDCCH ordering component 930 as described with reference to FIG. 9 .

[0247] At 1515, the method may include performing a random access procedure associated with the downlink control channel order according to one or more rules related to receipt of the downlink control channel order via linked downlink control channel candidates. The operations of 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by random access procedure component 935 as described with reference to FIG. 9 .

[0248] FIG. 16 shows a flow diagram illustrating a method 1600 of supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. The operations of method 1600 may be implemented by a base station or components thereof as described herein. For example, the operations of method 1600 may be performed by base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, a base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, a base station may perform aspects of the functions described using special purpose hardware.

[0249] At 1605, the method may include transmitting to the UE an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition. The operations of 1605 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by linked PDCCH identification component 1325 as described with reference to FIG. 13.

[0250] At 1610, the method includes transmitting, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order to the UE requesting the UE to participate in a random access procedure. It can be included. The operations of 1610 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by PDCCH ordering component 1330 as described with reference to FIG. 13 .

[0251] At 1615, the method includes receiving, from a UE, an uplink random access message associated with a downlink control channel order according to one or more rules related to transmission of the downlink control channel order via linked downlink control channel candidates. can do. The operations of 1615 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by uplink random access message component 1335 as described with reference to FIG. 13.

[0252] FIG. 17 shows a flow diagram illustrating a method 1700 of supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. The operations of method 1700 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1700 may be performed by UE 115 as described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special purpose hardware.

[0253] At 1705, the method may include receiving a downlink control channel order requesting the UE to participate in a random access procedure, wherein the downlink control channel order includes a plurality of downlink control channels linked for downlink control channel repetition. Downlink control channel orders via channel candidates are received according to one or more rules related to reception. The operations of 1705 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by PDCCH ordering component 930 as described with reference to FIG. 9.

[0254] At 1710, the method may include performing a random access procedure based on a downlink control channel order received according to one or more rules. The operations of 1710 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by random access procedure component 935 as described with reference to FIG. 9 .

[0255] FIG. 18 shows a flow diagram illustrating a method 1800 of supporting downlink control channel repetition for downlink control channel ordering in accordance with aspects of the present disclosure. The operations of method 1800 may be implemented by a base station or components thereof as described herein. For example, the operations of method 1800 may be performed by base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, a base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, a base station may perform aspects of the functions described using special purpose hardware.

[0256] At 1805, the method may include transmitting a downlink control channel order to the UE requesting the UE to participate in a random access procedure, wherein the downlink control channel order includes a plurality of downlink control channel orders linked for downlink control channel repetition. Transmitted according to one or more rules related to the receipt of downlink control channel orders through link control channel candidates. The operations of 1805 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by PDCCH ordering component 1330 as described with reference to FIG. 13.

[0257] At 1810, the method may include receiving a random access message from a UE based on a downlink control channel order transmitted according to one or more rules. The operations of 1810 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by uplink random access message component 1335 as described with reference to FIG. 13.

[0258] The following provides an overview of aspects of the disclosure:

[0259] Aspect 1: A method for wireless communications in a user equipment (UE), comprising: receiving an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition; Receiving, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure; and performing a random access procedure associated with the downlink control channel order according to one or more rules related to receipt of the downlink control channel order via linked downlink control channel candidates.

[0260] Aspect 2: The method of aspect 1, wherein performing a random access procedure comprises: determining a random access opportunity for transmission of an uplink random access message in response to a downlink control channel order; and transmitting an uplink random access message during a random access opportunity based at least in part on the first symbol of the random access opportunity being after a threshold delay period triggered by a reference downlink control channel candidate of linked downlink control channel candidates. Includes more steps.

[0261] Aspect 3: The method of aspect 2, wherein the reference downlink control channel candidate is a second downlink control channel candidate as a result of which the second downlink control channel candidate terminates later in time than the first downlink control channel candidate, and The above rules indicate that the critical delay period starts after the last symbol of the second downlink control channel candidate.

[0262] Aspect 4: The method of any one of Aspect 2 and Aspect 3, wherein performing a random access procedure according to one or more rules determines whether a downlink control channel order is received during a first downlink control channel candidate or a second downlink It is independent of which control channel candidates are received during.

[0263] Aspect 5: The method of any one of aspects 2 to 4, wherein the threshold delay period comprises: a first time period for uplink shared channel preparation according to the capabilities of the UE, a second time period for random access preparation, a bandwidth portion; a third time period for switching, a fourth time period for uplink switching, or a combination thereof.

[0264] Aspect 6: The method of any one of aspects 2-5, wherein determining a random access opportunity comprises determining timing of the random access opportunity based at least in part on an indication of downlink control channel order or a measured SSB. Includes steps.

[0265] Aspect 7: The method of any one of aspects 1-6, wherein performing a random access procedure comprises transmitting an uplink random access message in response to a downlink control channel order—a first downlink control channel. The candidate is associated with a first TCI state, and the second downlink control channel candidate is associated with a second TCI state that is different from the first TCI state—; and identifying, according to one or more rules, a QCL assumption to be applied to the reception of the downlink random access message in response to the uplink random access message, wherein the QCL assumption is one of the first TCI state or the second TCI state. Associated with at least one

[0266] Aspect 8: The method of aspect 7, wherein identifying a QCL assumption includes selecting one of a first TCI state or a second TCI state as a basis for the QCL assumption according to one or more rules, one of The above rules specify that the selection of either the first TCI state or the second TCI state is based at least in part on the relative timing of the first downlink control channel candidate and the second downlink control channel candidate.

[0267] Aspect 9: The method of aspect 7, wherein identifying a QCL assumption comprises selecting one of a first TCI state or a second TCI state as a basis for the QCL assumption according to one or more rules, wherein: The above rules state that the selection of either the first TCI state or the second TCI state corresponds to the first search space set ID of the first search space set corresponding to the first downlink control channel candidate and the second downlink control channel candidate. specifies that the second search space set is based at least in part on the relative values of the second search space set ID of the second search space set.

[0268] Aspect 10: The method of aspect 7, wherein identifying a QCL assumption comprises selecting one of a first TCI state or a second TCI state as a basis for the QCL assumption according to one or more rules, wherein: The above rules state that the selection of either the first TCI state or the second TCI state determines the first CORESET ID associated with the first search space set corresponding to the first downlink control channel candidate and the second downlink control channel candidate. specifies that it is based at least in part on the relative values of the second CORESET ID associated with the second search space set.

[0269] Aspect 11: The method of aspect 7, wherein identifying a QCL assumption comprises selecting one of a first TCI state or a second TCI state as a basis for the QCL assumption according to one or more rules, wherein: The above rules provide that the selection of either the first TCI state or the second TCI state is based at least in part on the relative values of the first TCI state ID associated with the first TCI state and the second TCI state ID associated with the second TCI state. specify that

[0270] Aspect 12: The method of aspect 7, wherein identifying a QCL assumption includes selecting both a first TCI state and a second TCI state as a basis for the QCL assumption according to one or more rules, wherein: The above rules specify that the downlink random access message to which the QCL assumption applies is a downlink control channel message scheduling RAR message, and the downlink control channel message is a third downlink control channel linked for downlink control channel repetition. Candidate and fourth downlink control channel are transmitted through candidate.

[0271] Aspect 13: The method of any of aspects 7-12, wherein identifying a QCL assumption comprises selecting both the first TCI state and the second TCI state as a basis for the QCL assumption according to one or more rules. wherein the one or more rules specify that the downlink random access message to which the QCL assumption applies is a RAR message that is a multi-TCI state downlink shared channel varying in at least one of SDM, FDM, TDM, or single frequency network schemes. do.

[0272] Aspect 14: The method of any of aspects 7-13, wherein the downlink control channel order requests a CFRA procedure for the PCell or the PSCell or both.

[0273] Aspect 15: The method of any of aspects 7 through 14, wherein the downlink random access message is a downlink control channel message scheduling a RAR message or is a RAR message.

[0274] Aspect 16: A method for wireless communications at a base station, comprising: transmitting to a UE an indication that a first downlink control channel candidate and a second downlink control channel candidate are linked for downlink control channel repetition; transmitting, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure to the UE; and receiving, from the UE, an uplink random access message associated with the downlink control channel order according to one or more rules related to transmission of the downlink control channel order over the linked downlink control channel candidates.

[0275] Aspect 17: The method of aspect 26, wherein receiving an uplink random access message comprises: a threshold delay period triggered by a reference downlink control channel candidate of downlink control channel candidates to which the first symbol of the random access opportunity is linked; The method further includes receiving an uplink random access message during a random access opportunity based at least in part on what is after.

[0276] Aspect 18: The method of aspect 17, wherein the reference downlink control channel candidate is a second downlink control channel candidate as a result of which the second downlink control channel candidate terminates later in time than the first downlink control channel candidate; The above rules indicate that the critical delay period starts after the last symbol of the second downlink control channel candidate.

[0277] Aspect 19: The method of any one of aspects 17 and 18, wherein receiving an uplink random access message according to one or more rules comprises whether a downlink control channel order is transmitted during a first downlink control channel candidate or a first downlink control channel order. 2 is independent of whether the downlink control channel is transmitted during the candidate.

[0278] Aspect 20: The method of any of aspects 17-19 further comprising transmitting to the UE an indication of the timing of the random access opportunity via a downlink control channel order or SSB.

[0279] Aspect 21: The method of any of aspects 16-20 further comprising: identifying a QCL assumption to be applied to transmission of a downlink random access message in response to an uplink random access message, according to one or more rules, and , the QCL assumption is associated with at least one of a first TCI state associated with the first downlink control channel candidate or a second TCI state associated with the second downlink control channel candidate, and the first TCI state is different from the second TCI state. .

[0280] Aspect 22: The method of aspect 21, wherein identifying a QCL assumption includes selecting both a first TCI state and a second TCI state as a basis for the QCL assumption according to one or more rules, one The above rules specify that the downlink random access message to which the QCL assumption applies is a downlink control channel message scheduling RAR message, and the downlink control channel message is a third downlink control channel linked for downlink control channel repetition. Candidate and fourth downlink control channel are transmitted through candidate.

[0281] Aspect 23: The method of any one of aspects 21 and 22, wherein identifying a QCL assumption comprises selecting both the first TCI state and the second TCI state as a basis for the QCL assumption according to one or more rules. One or more rules specify that the downlink random access message to which the QCL assumption applies is a RAR message that is a multi-TCI state downlink shared channel varying in at least one of SDM, FDM, TDM, or single frequency network schemes. .

[0282] Aspect 24: A method for wireless communications in a UE, comprising: receiving a downlink control channel order requesting the UE to participate in a random access procedure, wherein the downlink control channel order includes a plurality of links linked for downlink control channel repetition. received in accordance with one or more rules relating to the receipt of downlink control channel orders over the downlink control channel candidates; and performing a random access procedure based on the downlink control channel order received according to one or more rules.

[0283] Aspect 25: The method of aspect 24, wherein receiving a downlink control channel order according to one or more rules comprises controlling downlink via a downlink control channel candidate that is not linked with other downlink control channel candidates for repetition. and receiving a channel order.

[0284] Aspect 26: The method of aspect 24, wherein receiving a downlink control channel order according to one or more rules comprises: selecting a first downlink control channel candidate or a second downlink control channel that is linked for downlink control channel repetition; Receiving a downlink control channel order via at least one of the candidates, wherein the first downlink control channel candidate corresponds to a first search space set associated with CORESET and the second downlink control channel candidate corresponds to a first set of search spaces associated with CORESET. 2 Corresponds to a set of search spaces.

[0285] Aspect 27: The method of aspect 24, wherein receiving a downlink control channel order according to one or more rules comprises: selecting a first downlink control channel candidate or a second downlink control channel that is linked for downlink control channel repetition; Receiving a downlink control channel order via at least one of the candidates, wherein the first downlink control channel candidate corresponds to a first search space set associated with a first CORESET having a TCI state and a second downlink control channel The candidate corresponds to a second search space set associated with a second CORESET with TCI status.

[0286] Aspect 28: The method of any of aspects 24-27, wherein the downlink control channel order requests a CFRA procedure for the PCell or the PSCell or both.

[0287] Aspect 29: A method for wireless communications at a base station, comprising transmitting a downlink control channel order to a UE requesting the UE to participate in a random access procedure, wherein the downlink control channel order is configured to transmit a downlink control channel order to a UE linked for downlink control channel repetition. Transmitted in accordance with one or more rules relating to the receipt of downlink control channel orders over a plurality of downlink control channel candidates; and receiving a random access message from the UE based on a downlink control channel order transmitted according to one or more rules.

[0288] Aspect 30: The method of aspect 29, wherein transmitting a downlink control channel order according to one or more rules comprises: controlling downlink via a downlink control channel candidate that is not linked with other downlink control channel candidates for repetition. and transmitting a channel order.

[0289] Aspect 31: The method of aspect 29, wherein transmitting a downlink control channel order according to one or more rules comprises: a first downlink control channel candidate or a second downlink control channel being linked for downlink control channel repetition; transmitting a downlink control channel order via at least one of the candidates, wherein the first downlink control channel candidate corresponds to a first search space set associated with CORESET and the second downlink control channel candidate corresponds to a first set of search spaces associated with CORESET. 2 Corresponds to a set of search spaces.

[0290] Aspect 32: The method of aspect 29, wherein transmitting a downlink control channel order according to one or more rules comprises: a first downlink control channel candidate or a second downlink control channel being linked for downlink control channel repetition; transmitting a downlink control channel order via at least one of the candidates, wherein the first downlink control channel candidate corresponds to a first search space set associated with a first CORESET having a TCI state and a second downlink control channel The candidate corresponds to a second search space set associated with a second CORESET with TCI status.

[0291] Aspect 33: An apparatus for wireless communications in a UE comprising: a processor; a memory coupled to the processor; and instructions stored in memory and executable by a processor to cause the device to perform any of the methods of aspects 1 through 15.

[0292] Aspect 34: An apparatus for wireless communications in a UE comprising at least one means for performing the method of any one of aspects 1 to 15.

[0293] Aspect 35: A non-transitory computer-readable storage medium storing code for wireless communications in a UE, wherein the code includes instructions executable by a processor to perform the method of any one of aspects 1-15.

[0294] Aspect 36: An apparatus for wireless communications in a base station comprising: a processor; a memory coupled to the processor; and instructions stored in memory and executable by a processor to cause the device to perform any of the methods of aspects 16-23.

[0295] Aspect 37: An apparatus for wireless communications in a base station comprising at least one means for performing the method of any one of aspects 16 to 23.

[0296] Aspect 38: A non-transitory computer-readable storage medium storing code for wireless communications at a base station, wherein the code includes instructions executable by a processor to perform the method of any of aspects 16-23.

[0297] Aspect 39: An apparatus for wireless communications in a UE comprising: a processor; a memory coupled to the processor; and instructions stored in memory and executable by a processor to cause the device to perform any of the methods of aspects 24-28.

[0298] Aspect 40: An apparatus for wireless communications in a UE comprising at least one means for performing the method of any one of aspects 24-28.

[0299] Aspect 41: A non-transitory computer-readable storage medium storing code for wireless communications in a UE, wherein the code includes instructions executable by a processor to perform the method of any one of aspects 24-28.

[0300] Aspect 42: An apparatus for wireless communications in a base station comprising: a processor; a memory coupled to the processor; and instructions stored in memory and executable by a processor to cause the device to perform any one of the methods of aspects 29-32.

[0301] Aspect 43: An apparatus for wireless communications in a base station comprising at least one means for performing the method of any one of aspects 29-32.

[0302] Aspect 44: A non-transitory computer-readable storage medium storing code for wireless communications at a base station, wherein the code includes instructions executable by a processor to perform the method of any of aspects 29-32.

[0303] It should be noted that the methods described herein describe possible implementations, acts and steps may be rearranged or otherwise modified, and other implementations are possible. Additionally, aspects from two or more of the methods may be combined.

[0304] Aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and although the terminology LTE, LTE-A, LTE-A Pro, or NR may be used throughout much of the description, The techniques described are applicable beyond LTE, LTE-A, LTE-A Pro or NR networks. For example, the techniques described are used in 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, and Flash-OFDM. as well as other systems and radio technologies not explicitly mentioned herein.

[0305] It will be appreciated that information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that may be referenced throughout the description include voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, It may be expressed as light fields or light particles, or any combination thereof.

[0306] The various example blocks and components described in connection with the disclosure herein may be a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or It may be implemented in or performed by any combination thereof designed to perform the described functions. A general-purpose processor may be a microprocessor, but alternatively the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a DSP and microprocessor combination, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0307] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code in a computer-readable medium. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located in various positions, including distributed such that portions of the functions are implemented in different physical locations.

[0308] Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD-ROM) or other optical disk storage, magnetic disk storage, or other magnetic storage devices. , or any other non-transitory medium accessible by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Any connection is also properly termed a computer-readable medium. For example, if the Software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair cable, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then Cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are 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. Including, where disks usually reproduce data magnetically, while disks reproduce data optically by lasers. Combinations of the above are also included within the scope of computer-readable media.

[0309] As used in this specification, including the claims, "or" when used in a list of items (e.g., a list of items followed by a phrase such as "at least one of" or "one or more of") means For example, a list of “at least one of A, B or C” represents an inclusive list, meaning A or B or C or AB or AC or BC or ABC (i.e. A and B and C). Additionally, as used herein, the phrase “based on” should not be construed as a reference to a closed set of conditions. For example, example steps described as “based on Condition A” may be based on both Condition A and Condition B without departing from the scope of the present disclosure. That is, as used herein, the phrase “based on” will be interpreted in the same way as the phrase “based at least in part on.”

[0310] The terms “determine” or “determination” encompass a wide range of actions, and thus “decision” includes calculating, computing, processing, deriving, examining, retrieving (such as through retrieval in a table, database, or other data structure); May include confirmation, etc. Additionally, “determining” may include receiving (such as receiving information), accessing (such as accessing data in a memory), and the like. Additionally, “decision” can include resolving, selecting, choosing, establishing, and other such similar actions.

[0311] In the accompanying drawings, similar components or features may have the same reference label. Additionally, various components of the same type may be distinguished by a reference label followed by a dash and a second label that distinguishes between similar components. If only a first reference label is used herein, the description is applicable to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference label.

[0312] The description set forth herein in connection with the accompanying drawings describes example configurations and does not represent all examples that may be implemented or within the scope of the claims. As used herein, the term “exemplary” means “serving as an example, illustration, or illustration,” rather than “advantageous” or “preferred” over other examples. The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the illustrated examples.

[0313] The description herein is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other modifications without departing from the scope of the disclosure. Therefore, the present disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (30)

An apparatus for wireless communications in user equipment (UE), comprising:
processor;
a memory coupled to the processor; and
Contains instructions stored in the memory,
The commands cause the device to:
receive an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition;
receive, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure; and
At the UE, executable by the processor to perform the random access procedure associated with the downlink control channel order according to one or more rules related to receipt of the downlink control channel order through linked downlink control channel candidates. A device for wireless communications. According to claim 1,
The above commands are:
determine a random access opportunity for transmission of an uplink random access message in response to the downlink control channel order; and
The uplink random access message during the random access opportunity based at least in part on the first symbol of the random access opportunity being after a threshold delay period triggered by a reference downlink control channel candidate of the linked downlink control channel candidates. Is executable by the processor to transmit:
Apparatus for wireless communications in a UE, further executable by the processor to perform the random access procedure. According to clause 2,
The reference downlink control channel candidate is the second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and the one or more rules are set to the threshold. Indicating that a delay period starts after the last symbol of the second downlink control channel candidate. According to clause 2,
Performing the random access procedure according to the one or more rules is independent of whether the downlink control channel order is received during the first downlink control channel candidate or the second downlink control channel candidate. A device for wireless communications in According to clause 2,
The critical delay period includes a first time period for uplink shared channel preparation, a second time period for random access preparation, a third time period for bandwidth partial switching, and a third time period for uplink switching according to the capabilities of the UE. Apparatus for wireless communications in a UE, comprising a 4-hour period, or a combination thereof. According to clause 2,
The above commands are:
being executable by the processor to determine timing of the random access opportunity based at least in part on an indication of the downlink control channel order or a measured synchronization signal block,
The apparatus for wireless communications in a UE further executable by the processor to determine the random access opportunity. According to claim 1,
The above commands are:
Transmit an uplink random access message in response to the downlink control channel order, wherein the first downlink control channel candidate is associated with a first transmission configuration indicator state, and the second downlink control channel candidate is associated with the first transmission configuration indicator state. 1 associated with a second transmission configuration indicator state that is different from the transmission configuration indicator state; and
Is executable by the processor to identify a quasi-colocation assumption to be applied to reception of a downlink random access message in response to the uplink random access message, according to the one or more rules,
further executable by the processor to perform the random access procedure, wherein the pseudo-colocation assumption is associated with at least one of the first transmission configuration indicator state or the second transmission configuration indicator state. A device for wireless communications. According to clause 7,
The above commands are:
being executable by the processor to select either the first transmission configuration indicator state or the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules are such that selection of either the first transmission configuration indicator state or the second transmission configuration indicator state determines the first transmission configuration indicator state. Apparatus for wireless communications in a UE, which specifies based at least in part on the relative timing of a downlink control channel candidate and the second downlink control channel candidate. According to clause 7,
The above commands are:
being executable by the processor to select either the first transmission configuration indicator state or the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules are such that selection of either the first transmission configuration indicator state or the second transmission configuration indicator state determines the first transmission configuration indicator state. at least partially to the relative values of a first search space set identifier of the first search space set corresponding to the downlink control channel candidate and a second search space set identifier of the second search space set corresponding to the second downlink control channel candidate An apparatus for wireless communications in a UE, specifying that it is based on According to clause 7,
The above commands are:
being executable by the processor to select either the first transmission configuration indicator state or the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules are such that selection of either the first transmission configuration indicator state or the second transmission configuration indicator state determines the first transmission configuration indicator state. Relative values of a first control resource set identifier associated with a first search space set corresponding to a downlink control channel candidate and a second control resource set identifier associated with a second search space set corresponding to the second downlink control channel candidate. An apparatus for wireless communications in a UE, which specifies based at least in part on: According to clause 7,
The above commands are:
being executable by the processor to select either the first transmission configuration indicator state or the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules are such that selection of either the first transmission configuration indicator state or the second transmission configuration indicator state determines the first transmission configuration indicator state. specifying that the transmission configuration indicator state is based at least in part on relative values of a first transmission configuration indicator state identifier associated with the transmission configuration indicator state and a second transmission configuration indicator state identifier associated with the second transmission configuration indicator state. A device for wireless communications. According to clause 7,
The above commands are:
being executable by the processor to select both the first transmission configuration indicator state and the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
and further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules cause the downlink random access message to which the pseudo-colocation assumption applies to schedule a random access response message. Specifying that the downlink control channel message is a channel message, wherein the downlink control channel message is transmitted on a third downlink control channel candidate and a fourth downlink control channel candidate that are linked for downlink control channel repetition. Device. According to clause 7,
The above commands are:
being executable by the processor to select both the first transmission configuration indicator state and the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
and further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules are such that the downlink random access message to which the pseudo-colocation assumption applies is subjected to space division multiplexing, frequency division multiplexing, or time division multiplexing. , or a multi-transmission configuration indicator status downlink shared channel varying in at least one of a single frequency network scheme. According to clause 7,
wherein the downlink control channel ordering requests a contention-free random access procedure for a primary cell or a primary-secondary cell, or both. According to clause 7,
The downlink random access message is either a downlink control channel message scheduling a random access response message or the random access response message. An apparatus for wireless communications in a base station, comprising:
processor;
a memory coupled to the processor; and
Contains instructions stored in the memory,
The commands cause the device to:
transmit to a user equipment (UE) an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition;
send, through one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure to the UE; and
by the processor to receive, from the UE, an uplink random access message associated with the downlink control channel order according to one or more rules related to transmission of the downlink control channel order via linked downlink control channel candidates. Apparatus for wireless communications in a base station, feasible. According to claim 16,
The above commands are:
The uplink random access message during the random access opportunity based at least in part on the first symbol of the random access opportunity being after a threshold delay period triggered by a reference downlink control channel candidate of the linked downlink control channel candidates. being executable by the processor to receive,
The apparatus for wireless communications in a base station, wherein the apparatus is further executable by the processor to receive the uplink random access message. According to claim 17,
The reference downlink control channel candidate is the second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and the one or more rules are set to the threshold. and indicating that a delay period begins after the last symbol of the second downlink control channel candidate. According to claim 17,
Receiving the uplink random access message according to the one or more rules is independent of whether the downlink control channel order is transmitted during the first downlink control channel candidate or the second downlink control channel candidate. , a device for wireless communications in a base station. According to claim 17,
The commands cause the device to:
and cause to transmit to the UE an indication of the timing of the random access opportunity via the downlink control channel ordering or synchronization signal block. According to claim 16,
The commands cause the device to:
further executable by the processor to identify, in accordance with the one or more rules, a pseudo-colocation assumption to be applied to transmission of a downlink random access message in response to the uplink random access message; The location assumption is associated with at least one of a first transmission configuration indicator state associated with the first downlink control channel candidate or a second transmission configuration indicator state associated with the second downlink control channel candidate, the first transmission configuration wherein the indicator state is different from the second transmission configuration indicator state. According to claim 21,
The above commands are:
being executable by the processor to select both the first transmission configuration indicator state and the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
and further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules cause the downlink random access message to which the pseudo-colocation assumption applies to schedule a random access response message. Specifying that the downlink control channel message is a channel message, wherein the downlink control channel message is transmitted on a third downlink control channel candidate and a fourth downlink control channel candidate that are linked for downlink control channel repetition. Device. According to claim 21,
The above commands are:
being executable by the processor to select both the first transmission configuration indicator state and the second transmission configuration indicator state as a basis for the pseudo-colocation assumption according to the one or more rules,
and further executable by the processor to identify the pseudo-colocation assumption, wherein the one or more rules are such that the downlink random access message to which the pseudo-colocation assumption applies is subjected to space division multiplexing, frequency division multiplexing, or time division multiplexing. , or a random access response message that is a multi-transmission configuration indicator status downlink shared channel varying in at least one of a single frequency network mode. A method for wireless communications in user equipment (UE), comprising:
Receiving an indication that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition;
Receiving, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order requesting the UE to participate in a random access procedure; and
performing the random access procedure associated with the downlink control channel order according to one or more rules related to receipt of the downlink control channel order via linked downlink control channel candidates. way for them. According to clause 24,
The step of performing the random access procedure is,
determining a random access opportunity for transmission of an uplink random access message in response to the downlink control channel order; and
The uplink random access message during the random access opportunity based at least in part on the first symbol of the random access opportunity being after a threshold delay period triggered by a reference downlink control channel candidate of the linked downlink control channel candidates. A method for wireless communications in a UE, further comprising transmitting. According to clause 25,
The reference downlink control channel candidate is the second downlink control channel candidate as a result of the second downlink control channel candidate terminating later in time than the first downlink control channel candidate, and the one or more rules are set to the threshold. Indicating that a delay period starts after the last symbol of the second downlink control channel candidate. According to claim 25,
performing the random access procedure according to the one or more rules is independent of whether the downlink control channel order is received during the first downlink control channel candidate or during the second downlink control channel candidate. Method for wireless communications in a UE. According to clause 25,
The critical delay period includes a first time period for uplink shared channel preparation, a second time period for random access preparation, a third time period for bandwidth partial switching, and a third time period for uplink switching according to the capabilities of the UE. A method for wireless communications in a UE, comprising a 4-hour period, or a combination thereof. A method for wireless communications in a base station, comprising:
transmitting an indication to a user equipment (UE) that the first downlink control channel candidate and the second downlink control channel candidate are linked for downlink control channel repetition;
transmitting, via one or both of the first downlink control channel candidate and the second downlink control channel candidate, a downlink control channel order to the UE requesting the UE to participate in a random access procedure; and
Receiving, from the UE, an uplink random access message associated with the downlink control channel order according to one or more rules related to transmission of the downlink control channel order via linked downlink control channel candidates. Method for wireless communications in a base station. According to clause 29,
The step of receiving the uplink random access message is,
The uplink random access message during the random access opportunity based at least in part on the first symbol of the random access opportunity being after a threshold delay period triggered by a reference downlink control channel candidate of the linked downlink control channel candidates. A method for wireless communications at a base station, further comprising the step of receiving.