Control search space overlap instruction

Abstract

To provide a method, a system, a device, and an apparatus for supporting control search space overlap indication.SOLUTION: In a wireless communication system, user equipment (UE) may receive, from a base station, a synchronization signal block (SSB) of a set of quasi-collocated (QCL) SSBs, the SSB comprising an indication of a parameter indicating information associated with a plurality of downlink control channel locations corresponding to the set of QCL SSBs. The UE may determine, based at least in part on the parameter, the plurality of downlink control channel locations corresponding to the set of QCL SSBs. The UE may receive a downlink grant for system information based at least in part on monitoring one or more downlink control channel locations of the plurality of downlink control channel locations. The UE may receive the system information based at least in part on the downlink grant. The UE may establish a connection with the base station based at least in part on the SSB and the received system information.SELECTED DRAWING: Figure 15

Description

Technical Field

[0001] Cross-reference This patent application claims priority to U.S. Patent Application No. 16 / 681,554, filed Nov. 12, 2019, by SUN et al., titled "CONTROL SEARCH SPACE OVERLAP INDICATION", and Indian Patent Application No. 201841042779, filed Nov. 14, 2018, by SUN et al., titled "CONTROL SEARCH SPACE OVERLAP INDICATION", which have been assigned to the assignee of this application.

[0002] The following generally relates to wireless communication, and more particularly to control search space overlap indication.

Background Art

[0003] Wireless communication systems have been widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multi-connection systems include fourth-generation (4G) systems such as Long-Term Evolution (LTE) systems, LTE Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth-generation (5G) systems sometimes referred to as New Radio (NR) systems. These systems may employ techniques such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multi-connection communication system may include several base stations or network access nodes that each simultaneously support communication for a plurality of communication devices, sometimes known as user equipment (UE).

[0004] Wireless communication systems typically support a variety of communication techniques to support wireless communication between a base station and an UE. For example, a base station may transmit various synchronization signals (e.g., synchronization signal blocks (SSBs)) to support collection by the UE. Generally, SSBs can carry or transmit various parameters associated with the base station that the UE uses to match the base station (in terms of time, frequency, etc.) to at least some extent in order to establish a connection between the base station and the UE. Conventionally, typically a limited or defined number of SSBs are transmitted by a base station. In millimeter-wave (mmW) networks, a base station may transmit SSBs in beamformed transmissions in a sweeping manner around the base station's coverage area.

[0005] Traditionally, a limited or defined number of SSBs available for transmission supported a one-to-one mapping between SSBs and various control signal resources. For example, each SSB might have a corresponding set of associated control signal resources (e.g., physical downlink control channel (PDCCH)), and an index number for an SSB might correspond to a specific PDCCH resource. However, conventional techniques do not support configurations where additional SSBs may be used for transmission, and may not provide a mechanism to support indication of PDCCH search space overlap, for example. Therefore, in situations where additional SSBs are available for transmission, conventional wireless networks may not support mapping from multiple SSBs to a specific control channel resource. [Overview of the project] [Means for solving the problem]

[0006] The techniques described relate to improved methods, systems, devices, and apparatus that support control search space overlap instruction. Generally, the techniques described provide various mechanisms that improve instruction of overlapping control channel locations corresponding to a set of quasi-co-located (QCL) synchronization signal blocks (SSBs). For example, a base station may transmit multiple SSBs from a set of QCL SSBs. In some embodiments, each SSB within the multiple SSBs carries or otherwise transmits instruction of an offset between consecutive SSBs within the set of QCL SSBs. Generally, the offset may refer to a parameter carried or transmitted in an SSB (e.g., the physical broadcast channel (PBCH) portion of the SSB) that enables or otherwise supports overlapping control channel locations for different SSBs. User equipment (UE) may receive one of the SSBs transmitted from the base station and determine the indicated offset. Based on this offset, the UE may determine multiple downlink control channel locations (e.g., physical downlink control channel (PDCCH) locations) corresponding to a set of QCL SSBs. The UE may receive downlink permission for system information signals (e.g., remaining minimum system information (RMSI)) by, for example, monitoring the downlink control channel location using the determined downlink control channel location. In accordance with the downlink permission, the UE may receive system information and establish a connection with the base station using the information within the system information (e.g., RMSI), as well as the SSB.

[0007] In other embodiments, the techniques described may support the rate matching operation of the UE. For example, system information (e.g., RMSI) may carry or transmit a bitmap indicating a subset of SSBs actually being transmitted from a set of SSBs, such that, for example, bits in the bitmap are set to "1" to indicate that an SSB is being transmitted at that location, or vice versa. In some embodiments, the system information may additionally carry or transmit an indication of the maximum number of SSBs available for use, which is greater than the total number of SSBs in the set of SSBs. For example, the bitmap may be configured as "10101010" to indicate that SSB locations 0, 2, 4, and 6 are actually being transmitted within a set of SSBs consisting of SSB locations (or indices) 0 through 7. The indication of the maximum number of SSBs may be set to the number of the maximum SSB locations being used, such as 12, 16, 18, or some other number of the maximum SSB locations that may be used. In at least some embodiments, the UE may configure rate matching based on the subset of SSBs indicated by the bitmap, as well as the indicated maximum number of SSBs available for use. In some embodiments, this may involve the UE having rules for repeating patterns of actually transmitted SSBs (e.g., a subset of SSBs within the set of SSBs) and punctured SSB locations within the set of SSBs for the SSB location used. For example, the UE might repeat the pattern "10101010" from SSB location 8 to the end of the maximum number of SSBs available for use. Thus, the UE may receive data transmissions (e.g., physical downlink shared channel (PDSCH) transmissions) using configured rate matching.

[0008] A method for wireless communication in a UE is described. The method may include the steps of: receiving an SSB from a base station, which is an SSB from a set of QCL SSBs, wherein the SSB includes parameter indications that show information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; determining a set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters; receiving a downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations; receiving system information based on the downlink permission; and establishing a connection with the base station based on the SSB and the received system information.

[0009] This describes an apparatus for wireless communication in a UE. The apparatus may include a processor, a memory communicating electronically with the processor, and instructions stored in the memory. Instructions may be executable by the processor to cause the apparatus to perform the following actions: receive an SSB from a base station, which is one of a set of QCL SSBs, wherein the SSB includes parameter instructions indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; determine the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters; receive a downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations; receive system information based on the downlink permission; and establish a connection with the base station based on the SSB and the received system information.

[0010] Another apparatus for wireless communications in a UE is described. The apparatus may include means for receiving an SSB from a base station, which includes a parameter indication indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; means for determining a set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameter; means for receiving a downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations; means for receiving system information based on the downlink permission; and means for establishing a connection with the base station based on the SSB and the received system information.

[0011] This describes a non-temporary computer-readable medium for storing code for wireless communications in a UE. The code may include instructions executable by a processor to: receive an SSB from a base station, which is one of a set of QCL SSBs, the SSB includes instructions for parameters indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; determine the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters; receive a downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations; receive system information based on the downlink permission; and establish a connection with the base station based on the SSB and the received system information.

[0012] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, the parameters include indications of offsets between consecutive SSBs in a set of QCL SSBs.

[0013] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, receiving an SSB may include receiving a PBCH portion of an SSB, where the PBCH portion of the SSB includes an operation, feature, means, or instruction for doing so, which includes a parameter instruction.

[0014] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, receiving the PBCH portion of an SSB may include an operation, feature, means, or instruction for performing soft synthesis across a set of SSBs.

[0015] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, parameter instructions may be common across each SSB in a set of SSBs.

[0016] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, the set of SSBs includes at least one of the following: a set of QCL SSBs, a set of different sets of QCL SSBs, each SSB associated with a base station, or a combination thereof.

[0017] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for determining the index of each SSB in a set of QCL SSBs, where determining a set of downlink control channel locations may be based on the determined index of each SSB in the set of QCL SSBs.

[0018] In some examples of the methods, apparatus, and non-transient computer-readable media described herein, the set of downlink control channel locations can be determined based on the frames in which the SSB may be received and the parameters indicated in the SSB.

[0019] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, receiving a downlink permission may include an operation, feature, means, or instruction for monitoring each downlink control channel location among a set of downlink control channel locations.

[0020] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may include operations, features, means, or instructions for receiving a downlink permission to determine that no downlink control information was detected during a first instance of a set of downlink control channel locations, and to monitor a second instance of the set of downlink control channel locations to detect a downlink permission based on parameters.

[0021] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, the downlink control channel locations among the set of downlink control channel locations include a type 0 PDCCH common search space.

[0022] A method for wireless communication at a base station is described. The method may include the steps of: transmitting a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes a parameter instruction indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; transmitting a downlink authorization for system information on the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameter; transmitting system information in accordance with the authorization; and establishing a connection with the UE based on the SSBs and system information.

[0023] The present invention describes an apparatus for wireless communication at a base station. The apparatus may include a processor, a memory communicating electronically with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to transmit a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes parameter instructions indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs, transmit a downlink permission for system information on the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters, transmit system information in accordance with the permission, and establish a connection with the UE based on the SSBs and system information.

[0024] Another device for wireless communication at a base station is described. The device may include means for transmitting a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes a parameter indication indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; means for transmitting a downlink authorization for system information on the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameter; means for transmitting system information in accordance with the authorization; and means for establishing a connection with a UE based on the SSBs and system information.

[0025] A non - transient computer - readable medium storing code for wireless communication in a base station is described. The code is for transmitting a set of SSBs, where the set of SSBs includes a set of QCL SSBs, and each SSB in the set of SSBs includes an indication of a parameter indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs. Based on the parameter, on the set of downlink control channel locations corresponding to the set of QCL SSBs, transmitting a downlink grant for system information, transmitting the system information according to the grant, and establishing a connection with a UE based on the SSB and the system information may include instructions executable by a processor.

[0026] In some examples of the methods, apparatuses, and non - transient computer - readable media described herein, the parameter includes an indication of an offset between consecutive SSBs within the set of QCL SSBs.

[0027] In some examples of the methods, apparatuses, and non - transient computer - readable media described herein, transmitting the set of SSBs is by transmitting the PBCH portion of the SSB, and the PBCH portion of the SSB may include operations, features, means, or instructions for including an indication of the parameter.

[0028] In some examples of the methods, apparatuses, and non - transient computer - readable media described herein, the indication of the parameter may be common across each SSB in the set of SSBs.

[0029] A method for wireless communication in a UE is described. The method may include the steps of: receiving system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; configuring rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and receiving a PDSCH transmission based on the rate matching.

[0030] This describes an apparatus for wireless communication in a UE. The apparatus may include a processor, memory communicating electronically with the processor, and instructions stored in memory. The instructions may be executable by the processor to cause the apparatus to receive system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs, to configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use, and to receive PDSCH transmissions based on the rate matching.

[0031] Another apparatus for wireless communication in a UE is described. The apparatus may include means for receiving system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; means for configuring rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and means for receiving PDSCH transmissions based on rate matching.

[0032] This describes a non-temporary computer-readable medium for storing code for wireless communication in a UE. The code may include instructions executable by a processor to receive system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; to configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and to receive a PDSCH transmission based on the rate matching.

[0033] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, configuring rate matching may include operations, features, means, or instructions for repeating a pattern in a bitmap for a subset of SSBs within a set of SSBs, and, after the subset of SSBs, for SSBs occurring within the maximum number of SSBs available for use.

[0034] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may include operations, features, means, or instructions for receiving system information, receiving a previous PDSCH transmission containing system information, and decoding the system information to identify a bitmap, wherein rate matching may not be performed on the previous PDSCH.

[0035] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, PDSCH transmissions may be received during the same discovery period, during which the maximum number of SSBs available for use may be transmitted.

[0036] A method for wireless communication at a base station is described. The method may include the steps of: transmitting system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information further indicates a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; configuring rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and performing PDSCH transmission based on the rate matching.

[0037] The present invention describes an apparatus for wireless communication at a base station. The apparatus may include a processor, a memory communicating electronically with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to transmit system information, which includes a bitmap indicating a subset of SSBs transmitted from a set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs, to configure rate matching based on the subset of SSBs indicated by the bitmap and the indicated maximum number of SSBs available for use, and to perform PDSCH transmission based on the rate matching.

[0038] Another device for wireless communication at a base station is described. The device may include means for transmitting system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information further indicates a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; means for configuring rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and means for performing PDSCH transmission based on rate matching.

[0039] The present invention describes a non-temporary computer-readable medium for storing code for wireless communication at a base station. The code includes instructions executable by a processor to transmit system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs, to configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use, and to perform PDSCH transmissions based on rate matching.

[0040] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for repeating a pattern in a bitmap for transmitting a subset of SSBs within a set of SSBs, and, after the subset of SSBs, for an additional set of SSBs transmitted within the maximum number of SSBs available for use.

[0041] In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, transmitting system information may include an action, feature, means, or instruction for performing a previous PDSCH transmission containing system information. [Brief explanation of the drawing]

[0042] [Figure 1] This figure shows an example of a system for wireless communication that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 2] This figure shows an example of a wireless communication system that supports control search space overlap instruction according to an aspect of this disclosure. [Figure 3] This figure shows an example of an SSB configuration that supports control search space overlap instruction according to an aspect of this disclosure. [Figure 4A]This figure shows an example of an SSB configuration that supports control search space overlap instruction according to an aspect of this disclosure. [Figure 4B] This figure shows an example of an SSB configuration that supports control search space overlap instruction according to an aspect of this disclosure. [Figure 5] This figure shows an example of a process that supports control search space overlap instruction according to an aspect of this disclosure. [Figure 6] This figure shows an example of a process that supports control search space overlap instruction according to an aspect of this disclosure. [Figure 7] This is a block diagram of a device that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 8] This is a block diagram of a device that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 9] This is a block diagram of a communication manager that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 10] This is a diagram of a system including a device that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 11] This is a block diagram of a device that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 12] This is a block diagram of a device that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 13] This is a block diagram of a communication manager that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 14] This is a diagram of a system including a device that supports control search space overlap instruction according to an aspect of the present disclosure. [Figure 15] This flowchart shows a method for supporting control search space overlap instructions according to an aspect of the present disclosure. [Figure 16] This flowchart shows a method for supporting control search space overlap instructions according to an aspect of the present disclosure. [Figure 17]This flowchart shows a method for supporting control search space overlap instructions according to an aspect of the present disclosure. [Figure 18] This flowchart shows a method for supporting control search space overlap instructions according to an aspect of the present disclosure. [Modes for carrying out the invention]

[0043] Wireless communication systems typically support various communication techniques to support wireless communication between base stations and user equipment (UEs). For example, a base station may transmit various synchronization signals (e.g., synchronization signal blocks (SSBs)) to support collection by the UE. Generally, SSBs can carry or transmit various parameters associated with the base station that the UE uses to match the base station (in time, frequency, etc.) to at least some extent in order to establish a connection between the base station and the UE. Conventionally, typically a limited or defined number of SSBs are transmitted by a base station. In millimeter-wave (mmW) networks, a base station may transmit SSBs in beamformed transmissions in a sweeping manner around the base station's coverage area.

[0044] Traditionally, a limited or defined number of SSBs available for transmission supported a one-to-one mapping between SSBs and various control signal resources. For example, each SSB might have a corresponding set of associated control signal resources (e.g., physical downlink control channel (PDCCH)), and an index number for an SSB might correspond to a specific PDCCH resource. However, conventional techniques do not support configurations where additional SSBs may be used for transmission, and some SSBs may not be transmitted as a result of a listen-before-talk (LBT) procedure on the carrier, which requires the LBT procedure to be performed before transmission. For example, they may not provide a mechanism to support indication of PDCCH search space overlap. Therefore, in situations where additional SSBs are available for transmission, conventional wireless networks may not support mapping from multiple SSBs to a specific control channel resource.

[0045] First, aspects of this disclosure will be described in the context of wireless communication systems. The techniques described relate to improved methods, systems, devices, and apparatus for supporting control search space overlap instruction. Generally, the techniques described provide various mechanisms for improving instruction of overlapping control channel locations corresponding to a set of pseudo-collocated (QCL) synchronization signal blocks (SSBs). For example, a base station may transmit multiple SSBs from a set of QCL SSBs. The SSBs selected for transmission from the set of QCL SSBs may be based on the result of a LBT procedure. In some aspects, each of the SSBs in the multiple SSBs carries or otherwise transmits instruction of an offset between consecutive SSBs in the set of QCL SSBs. Generally, the offset may refer to a parameter carried or transmitted in an SSB (e.g., the physical broadcast channel (PBCH) portion of an SSB) that enables or otherwise supports overlapping control channel locations for different SSBs. A UE may receive one of the SSBs transmitted from the base station and determine the indicated offset. Based on this offset, the UE may determine multiple downlink control channel locations (e.g., physical downlink control channel (PDCCH) locations) corresponding to a set of QCL SSBs. Using the determined downlink control channel locations, the UE may receive downlink permission for system information signals (e.g., minimal residual system information (RMSI)) by, for example, monitoring the downlink control channel locations. In accordance with the downlink permission, the UE may receive system information and use the information in the system information (e.g., RMSI), as well as the SSBs, to establish a connection with the base station.

[0046] In other embodiments, the techniques described may support the rate matching operation of the UE. For example, system information (e.g., RMSI) may carry or transmit a bitmap indicating a subset of SSBs actually being transmitted from a set of SSBs, such that, for example, bits in the bitmap are set to "1" to indicate that an SSB is being transmitted at that location, or vice versa. In some embodiments, the system information may additionally carry or transmit an indication of the maximum number of SSBs available for use, which is greater than the total number of SSBs in the set of SSBs. For example, the bitmap may be configured as "10101010" to indicate that SSB locations 0, 2, 4, and 6 are actually being transmitted within a set of SSBs consisting of SSB locations (or indices) 0 through 7. The indication of the maximum number of SSBs may be set to the number of the maximum SSB locations being used, such as 12, 16, 18, or some other number of the maximum SSB locations that may be used. In at least some embodiments, the UE may configure rate matching based on the subset of SSBs indicated by the bitmap, as well as the indicated maximum number of SSBs available for use. In some embodiments, this may involve the UE having rules for repeating patterns of actually transmitted SSBs (e.g., a subset of SSBs within the set of SSBs) and punctured SSB locations within the set of SSBs for the SSB location used. For example, the UE might repeat the pattern "10101010" from SSB location 8 to the end of the maximum number of SSBs available for use. Thus, the UE may receive data transmissions (e.g., physical downlink shared channel (PDSCH) transmissions) using configured rate matching.

[0047] The aspects of this disclosure will be further illustrated and described with reference to device diagrams, system diagrams, and flowcharts relating to control search space overlap instructions.

[0048] Figure 1 shows an example of a wireless communication system 100 that supports control search space overlap instruction according to an aspect of the present disclosure. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 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 cases, the wireless communication system 100 may support extended broadband communication, ultra-high reliability (e.g., mission-critical) communication, low-latency communication, or communication with low-cost and low-complexity devices.

[0049] Base station 105 may communicate wirelessly with UE 115 via one or more base station antennas. The base station 105 described herein may include, or may be referred to by, any other preferred term, transceiver base station, radio base station, access point, radio transceiver, node B, enode B (eNB), next-generation node B or giganode B (either of which may be called gNB), home node B, home enode B, or any other preferred term. The wireless communication system 100 may include different types of base stations 105 (e.g., macrocell base stations or smallcell base stations). UE 115 described herein may be able to communicate with various types of base stations 105 and network equipment, including macro eNBs, smallcell eNBs, gNBs, relay base stations, and the like.

[0050] Each base station 105 may be associated with a specific geographical coverage area 110 that supports communication with various UEs 115. Each base station 105 may provide communication coverage to its respective geographical coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communication link 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the base station 105, or downlink transmissions from the base station 105 to the UE 115. Downlink transmissions are sometimes called forward link transmissions, and uplink transmissions are sometimes called reverse link transmissions.

[0051] A geographical coverage area 110 for a base station 105 may be divided into sectors that constitute a portion of the geographical coverage area 110, and each sector may be associated with a cell. For example, each base station 105 may provide communication coverage for macrocells, small cells, hotspots, or other types of cells, or various combinations thereof. In some examples, base stations 105 are mobile and therefore may provide communication coverage to a moving geographical coverage area 110. In some examples, different geographical coverage areas 110 associated with different technologies may overlap, and overlapping geographical coverage areas 110 associated with different technologies may be supported by the same base station 105 or by different base stations 105. The wireless communication system 100 may include, for example, heterogeneous LTE / LTE-A / LTE-A Pro or NR networks in which different types of base stations 105 provide coverage to various geographical coverage areas 110.

[0052] The term “cell” refers to a logical communication entity used for communication with a base station 105 (for example, via a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)) to distinguish adjacent cells operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., machine-type communications (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or others) that may provide access for different types of devices. In some cases, the term “cell” may refer to a portion of a geographical coverage area 110 (e.g., a sector) on which a logical entity operates.

[0053] UE115 may be distributed throughout the entire wireless communication system 100, and each UE115 may be fixed or mobile. UE115 may also be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other preferred term, where “device” may also be referred to as a unit, station, terminal, or client. UE115 may also be a personal electronic device such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE115 may also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Things (IoE) device, or an MTC device, which may be implemented in various items such as appliances, vehicles, meters, etc.

[0054] Some UE115s, such as MTC devices or IoT devices, may be low-cost or low-complexity devices that can provide automated communication between machines (for example, via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that enables devices to communicate with each other or with base stations 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that incorporate sensors or meters to measure or capture information and relay that information to a central server or application program where that information is available, or present that information to a human interacting with the program or application. Some UE115s may be designed to collect information or enable automated behavior of machines. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security detection, physical access control, and billing for transaction-based businesses.

[0055] Some UE115s may be configured to employ power-saving operating modes, such as half-duplex communication (e.g., modes that support unidirectional communication via transmit or receive, but not simultaneous transmit and receive). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power-saving techniques for the UE115 include entering a power-saving "deep sleep" mode when not engaged in active communication, or operating over a limited bandwidth (e.g., according to narrowband communication). In some cases, the UE115 may be designed to support critical functions (e.g., mission-critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communication for these functions.

[0056] In some cases, UE115 may also be able to communicate directly with other UE115 (for example, using a peer-to-peer (P2P) protocol or a device-to-device (D2D) protocol). One or more of the groups of UE115 utilizing D2D communication may be within the geographical coverage area 110 of base station 105. Other UE115 in such a group may be outside the geographical coverage area 110 of base station 105 or otherwise unable to receive transmissions from base station 105. In some cases, the groups of UE115 communicating via D2D communication may utilize a one-to-many (1:M) system where each UE115 transmits to any other UE115 in the group. In some cases, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication occurs between UE115 without the involvement of base station 105.

[0057] The base stations 105 can communicate with the core network 130 and with each other. For example, a base station 105 can interface with the core network 130 through a backhaul link 132 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 can communicate with each other either directly (e.g., directly between base stations 105) or indirectly (e.g., via the core network 130) over a backhaul link 134 (e.g., via X2, Xn, or other interfaces).

[0058] The core network 130 may provide user authentication, access permission, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may also be an advanced packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access layer (e.g., control plane) functions such as mobility, authentication, and bearer management for UE 115 serviced by base station 105 associated with the EPC. User IP packets may be forwarded through an S-GW which may itself be connected to a P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to a network operator's IP services. The operator's IP services may include access to the Internet, intranet, IP multimedia subsystem (IMS), or packet-switched (PS) streaming services.

[0059] At least some of the network devices, such as the base station 105, may include subordinate components such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with the UE 115 through several other access network transmission entities, which may be called radio heads, smart radio heads, or transmit / receive points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or integrated within a single network device (e.g., base station 105).

[0060] The wireless communication system 100 may operate using one or more frequency bands, typically ranging from 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, because the wavelengths range from approximately 1 decimeter to 1 meter. UHF waves may be shielded or redirected by building and environmental characteristics. However, these waves can penetrate structures sufficiently to serve the UE 115 where the macrocell is located indoors. Transmitting UHF waves can be associated with smaller antennas and shorter distances (e.g., less than 100 km) compared to transmitting using lower frequencies and longer waves in the shortwave (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0061] The wireless communication system 100 may also operate within the centimeter wave (SHF: super high frequency) region, using a frequency band from 3 GHz to 30 GHz, also known as the centimeter band. The SHF region includes bands such as the 5 GHz industrial, scientific, and medical (ISM) band, which may be opportunistically used by devices that may tolerate interference from other users.

[0062] The wireless communication system 100 can also operate in the millimeter-wave (EHF: extremely high frequency) region of the spectrum (e.g., 30 GHz to 300 GHz), also known as the millimeter-band. In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between a UE 115 and a base station 105, where the EHF antennas of each device may be even smaller and more closely spaced than UHF antennas. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions is subject to greater atmospheric attenuation than SHF or UHF transmissions and may be over shorter distances. The techniques disclosed herein may be employed across transmissions using one or more different frequency domains, and the specified use of bands across these frequency domains may vary by country or regulatory body.

[0063] In some cases, the wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in unlicensed bands such as the 5 GHz ISM band. When operating in unlicensed radio frequency spectrum bands, wireless devices such as base stations 105 and UE 115 may employ listen-before-talk (LBT) procedures to ensure that the frequency channel is clear before transmitting data. In some cases, operation in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrum may include downlink transmission, uplink transmission, peer-to-peer transmission, or a combination thereof. Duplexing in unlicensed spectrum may be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both.

[0064] In some examples, a base station 105 or UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, a wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., base station 105) and a receiving device (e.g., UE 115), where the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to improve spectral efficiency by transmitting or receiving multiple signals over different spatial layers, which may be called spatial multiplexing. Multiple signals may be transmitted by the transmitting device over different antennas or different combinations of antennas. Similarly, multiple signals may be received by the receiving device over different antennas or different combinations of antennas. Each of the multiple signals may be called a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are sent to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are sent to multiple devices.

[0065] Beamforming, sometimes called spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used in a transmitting or receiving device (e.g., base station 105 or UE115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals communicated through the antenna elements of an antenna array such that signals propagating in a particular orientation relative to the antenna array undergo constructive interference, while other signals undergo destructive interference. The conditioning of signals communicated through antenna elements may involve the transmitting or receiving device applying several amplitude and phase offsets to the signals carried through each of the antenna elements associated with the device. The conditioning associated with each antenna element may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device, or to some other orientation).

[0066] In one example, base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with UE 115. For example, several signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions, which may include the signals being transmitted according to different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used to identify the beam direction for subsequent transmission and / or reception by base station 105 (e.g., by a receiving device such as base station 105 or UE 115).

[0067] Some signals, such as data signals associated with a specific receiving device, may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with a receiving device such as UE 115). In some examples, the beam direction associated with a transmission along a single beam direction may be determined at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more signals transmitted in different directions by base station 105, and UE 115 may report to base station 105 the indication of the signal received by UE 115 at the best or otherwise acceptable signal quality. These techniques will be described with reference to signals transmitted in one or more directions by base station 105, but UE 115 may employ similar techniques to transmit a signal multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to transmit a signal in a single direction (e.g., to transmit data to a receiving device).

[0068] A receiving device (for example, UE115, which may be an example of a mmW receiving device) can attempt multiple receive beams when receiving various signals from base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device can attempt multiple receiving directions by receiving through different antenna subarrays, by processing the received signal according to different antenna subarrays, by receiving according to different sets of receive beamforming weights applied to the received signal on multiple antenna elements of an antenna array, or by processing the received signal according to different sets of receive beamforming weights applied to the received signal on multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive beams or receiving directions. In some examples, a receiving device may use a single receive beam to receive along a single beam direction (for example, when receiving a data signal). A single receive beam may be matched to a beam direction determined at least partially based on listening according to different receiving beam directions (for example, a beam direction determined to have the highest signal intensity, the highest signal-to-noise ratio, or otherwise acceptable signal quality, at least partially based on listening according to multiple beam directions).

[0069] In some cases, the antennas of base station 105 or UE 115 may be located within one or more antenna arrays that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be collated into an antenna assembly such as an antenna tower. In some cases, the antennas or antenna arrays associated with base station 105 may be located in diverse geographical locations. Base station 105 may have an antenna array with several rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations.

[0070] In some cases, the wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly for communication over logical channels. The Medium Access Control (MAC) layer may perform priority processing and multiplexing logical channels to transport channels. The MAC layer may also use Hybrid Automatic Retransmission Requests (HARQ) to improve link efficiency by performing retransmissions at the MAC layer. In the control plane, the Radio Resource Control (RRC) protocol layer may establish, configure, and maintain RRC connections between the UE 115 and the base station 105 or core network 130, supporting radio bearers for user plane data. At the physical layer, transport channels may be mapped to physical channels.

[0071] In some cases, UE115 and base station 105 may support data retransmission to increase the likelihood of successful data reception. HARQ feedback is one technique that increases the likelihood of data being correctly received on 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 retransmission request (ARQ)). HARQ can improve throughput at the MAC layer under poor radio conditions (e.g., signal-to-noise conditions). In some cases, wireless devices may support same-slot HARQ feedback, where the device provides HARQ feedback within a given slot for data received in a previous symbol within that slot. In other cases, the device may provide HARQ feedback in subsequent slots or according to some other time interval.

[0072] The time interval in LTE or NR is, for example, T s = This can refer to a sampling period of 1 / 30,720,000 seconds, and can be expressed as a multiple of the basic time unit. The time interval of communication resources may be organized according to radio frames, each having a duration of 10 milliseconds (ms), where the frame duration is T f =307,200T s It can be represented as follows: A wireless frame can be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may contain 10 subframes numbered from 0 to 9, each subframe having a duration of 1 ms. A subframe may be further divided into two slots, each having a duration of 0.5 ms, and each slot may contain 6 or 7 modulated symbol periods (for example, depending on the length of the cyclic prefix prepared for each symbol period). Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the smallest scheduling unit of the wireless communication system 100, and may be called a transmit time interval (TTI). In other cases, the smallest scheduling unit of the wireless communication system 100 may be shorter than a subframe, or may be dynamically selected (for example, in a burst of shortened TTI (sTTI), or in a selected component carrier using sTTI).

[0073] In some wireless communication systems, a slot may be further divided into multiple minislots, each containing one or more symbols. In some cases, a minislot symbol or minislot may be the smallest unit of scheduling. Each symbol may have a varying duration, for example, depending on the subcarrier interval or frequency band of operation. Furthermore, some wireless communication systems may implement slot aggregation, where multiple slots or minislots are aggregated together and used for communication between the UE115 and the base station 105.

[0074] The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication over communication link 125. For example, the carrier of communication link 125 may include a portion of the radio frequency spectrum band operating according to physical layer channels for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. The carrier may be associated with a predefined frequency channel (e.g., an Advanced Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be arranged according to a channel raster for discovery by UE 115. The carrier may be downlink or uplink (e.g., in FDD mode), or may be configured to carry downlink and uplink communications (e.g., in TDD mode). In some examples, the signal waveform transmitted over the carrier may consist of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM).

[0075] The organizational structure of a carrier may differ depending on the radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). For example, communications on a carrier may be organized according to TTI or slots, each of which may include user data, as well as control information or signaling to support the decoding of user data. A carrier may also include dedicated collection signaling (e.g., synchronization signals or system information) and control signaling to coordinate operations for the carrier. In some examples (e.g., in a carrier aggregation configuration), a carrier may also have collection signaling or control signaling to coordinate operations for other carriers.

[0076] Physical channels can be multiplexed on the carrier according to various techniques. Physical control channels and physical data channels can be multiplexed on the downlink carrier using, for example, time-division multiplexing (TDM), frequency-division multiplexing (FDM), or hybrid TDM-FDM techniques. In some examples, control information transmitted in the physical control channel can be distributed in a cascaded manner between different control domains (for example, between a common control domain or common search space and one or more UE-specific control domains or UE-specific search spaces).

[0077] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several predetermined bandwidths for the carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each UE 115 served may be configured to operate across a portion or all of the carrier bandwidth. In other examples, some UE 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range within the carrier (e.g., a set of subcarriers or RBs) (e.g., an “in-band” deployment of a narrowband protocol type).

[0078] In systems employing 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 interval are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Therefore, the more resource elements the UE115 receives and the higher the order of the modulation scheme, the higher the data rate of the UE115 can be. In MIMO systems, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers), and the use of multiple spatial layers can further increase the data rate for communication with the UE115.

[0079] Devices in the wireless communication system 100 (for example, base station 105 or UE115) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication over one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include base station 105 and / or UE115 that support simultaneous communication over carriers associated with two or more different carrier bandwidths.

[0080] The wireless communication system 100 may support communication with the UE 115 over multiple cells or carriers, a function sometimes called 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 the carrier aggregation configuration. Carrier aggregation may be used with both FDD component carriers and TDD component carriers.

[0081] In some cases, the wireless communication system 100 may utilize an extended component carrier (eCC). The eCC may be characterized by one or more features, including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, the eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (for example, when multiple serving cells have suboptimal or non-ideal backhaul links). The eCC may also be configured for use in an unlicensed or shared spectrum (for example, when two or more operators are permitted to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that can be utilized by a UE 115 that is not capable of monitoring the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (for example, to conserve power).

[0082] In some cases, eCC may utilize different symbol durations than other component carriers, which may include the use of reduced symbol durations compared to those of other component carriers. Shorter symbol durations may be associated with increased spacing between adjacent subcarriers. Devices utilizing eCC, such as UE115 or base station 105, may transmit broadband signals (according to frequency channels or carrier bandwidths such as 20, 40, 60, or 80 MHz) with reduced symbol durations (e.g., 16.67 microseconds). The TTI in eCC may consist of one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in the TTI) may be variable.

[0083] The wireless communication system 100 may be an NR system that can utilize any combination of licensed spectrum, shared spectrum, and unlicensed spectrum bands. Flexibility in eCC symbol duration and subcarrier spacing may enable the use of eCC across multiple spectrums. In some examples, NR shared spectrum can increase spectrum utilization and spectral efficiency, particularly through the dynamic vertical (e.g., across the frequency domain) and horizontal (e.g., across the time domain) sharing of resources.

[0084] In some embodiments, UE115 may receive an SSB from base station 105, wherein the SSB comprises parameter indications showing information associated with a plurality of downlink control channel locations corresponding to the set of QCL SSBs. UE115 may determine the plurality of downlink control channel locations corresponding to the set of QCL SSBs, at least in part on the parameters. UE115 may receive a downlink permission for system information, at least in part on monitoring one or more of the plurality of downlink control channel locations. UE115 may receive system information, at least in part on the downlink permission. UE115 may establish a connection with base station 105, at least in part on the SSB and the received system information.

[0085] In some embodiments, base station 105 may transmit a plurality of SSBs, wherein the plurality of SSBs comprises a set of QCL SSBs, where each of the plurality of SSBs comprises parameter indications showing information associated with a plurality of downlink control channel locations corresponding to the set of QCL SSBs. Based at least in part on the parameters, base station 105 may transmit downlink permission for system information on the plurality of downlink control channel locations corresponding to the set of QCL SSBs. Based in accordance with the permission, base station 105 may transmit system information. Based at least in part on the synchronization signal block and the system information, base station 105 may establish a connection with UE 115.

[0086] In some embodiments, UE115 may receive system information comprising a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information further indicates a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs. UE115 may configure rate matching at least in part on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use. UE115 may receive PDSCH transmissions at least in part on rate matching.

[0087] In some embodiments, the base station 105 may transmit system information comprising a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information further indicates the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs. The base station 105 may configure rate matching at least in part on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs in use. The base station 105 may perform PDSCH transmission at least in part on rate matching.

[0088] Figure 2 shows an example of a wireless communication system 200 that supports control search space overlap instruction according to an aspect of this disclosure. In some examples, the wireless communication system 200 may implement an aspect of the wireless communication system 100. Generally, the wireless communication system 200 may include a base station 205 and an UE 210, which may be examples of the corresponding devices described herein. In some aspects, the base station 205 may be considered a potential or current serving base station from the perspective of the UE 210.

[0089] In some embodiments, the wireless communication system 200 may be configured to support various aspects of the techniques for control search space overlap instruction described. Generally, conventional networks typically defined a one-to-one correspondence between SSBs and downlink control channel locations (e.g., PDCCH locations). For example, each SSB may have an associated index, which corresponds to, or may not correspond to, a specific downlink control channel location (e.g., the location of a control channel carrying authorization for additional system information). A UE (e.g., UE210) attempting to establish a connection with a base station 205 would typically monitor and detect SSBs with associated indexes and, based on the SSB's index, identify the corresponding downlink control channel location. In a non-limiting example, an initial access UE (e.g., UE210) might detect an SSB with index 5. The initial access UE could know, for example, based on a lookup table or some other configured information, that SSB index 5 corresponds to a specific downlink control channel location. The initial access UE monitors the downlink control channel location corresponding to SSB index 5 and may receive downlink permission for resources that carry additional system information (for example, a resource for a PDSCH that carries RMSI, sometimes called an RMSI PDSCH). Traditionally, the downlink control channel location may be carried or transmitted in bits or fields of the base station 205's broadcast channel (such as a physical broadcast channel (PBCH)).

[0090] However, such conventional techniques may be unusable in some configurations. For example, in some embodiments, the number of SSBs available or otherwise usable by base station 205 may exceed the number of available downlink control channel locations, and thus, for example, one-to-one mapping techniques may be unusable. Furthermore, in mmW networks, base station 205 may transmit its SSBs using beamformed transmissions, which are transmitted in a sweeping manner within base station 205's coverage area. In some embodiments, this may involve base station 205 transmitting multiple QCL SSBs within its coverage area, more than the number of available corresponding downlink control channel locations. However, it should be understood that QCL SSBs are not limited to mmW networks and may instead refer to non-mmW networks.

[0091] Furthermore, some wireless networks may operate within shared or unlicensed radio frequency spectrum bands, in which case a listen-before-talk (LBT) procedure must be performed on the channel before any transmission may occur. In this example, the LBT procedure performed by base station 205 may fail in some instances of configured SSB transmissions, thereby causing further disruption to the network.

[0092] In some embodiments, SSBs may be transmitted within a specific discovery period (e.g., a Discovery Reference Signal (DRS) period). Even in this case, in some instances, the LBT procedure may succeed for some SSB transmissions within the DRS period, but fail for other SSB transmission instances within the DRS period. Therefore, the configured pattern of SSB transmissions may be interrupted within the DRS depending on the outcome of the LBT procedure, for example, based on the success or failure of the LBT procedure. Thus, embodiments of the technique described provide a mechanism in which overlapping (e.g., many-to-one) relationships between multiple SSB indices corresponding to downlink control channel locations can be supported by base station 205 and / or UE 210.

[0093] For example, base station 205 may support the availability of multiple SSBs 215 for transmission. In some embodiments, this may include a set of QCL SSBs being transmitted in a beamformed transmission in a sweeping manner around the coverage area of ​​base station 205. For example, a first SSB 215-a may be transmitted in a first beamforming direction, a second SSB 215-b in a second beamforming direction, a third SSB 215-c in a third beamforming direction, a fourth SSB 215-d in a fourth beamforming direction, a fifth SSB 215-e in a fifth beamforming direction, and so on. Generally, each SSB 215 may carry or transmit instructions for certain synchronization information available to an initial access UE (e.g., UE 210) seeking a base station to connect to. For example, each SSB215 may carry or transmit synchronization information (e.g., timing information, frequency information, spatial information, etc.). The initial access UE may use this information to detect or otherwise receive additional system information from the base station 205 in order to establish a connection between the base station 205 and the initial access UE. Thus, the base station 205 may transmit multiple SSB215s, where at least one of the SSB215s (e.g., SSB215-d) may be detected or otherwise received by the UE 210.

[0094] Depending on the aspect of the technique described, an SSB215 transmitted by base station 205 may comprise or form a set of QCL SSBs. For example, base station 205 may transmit multiple instances of SSB215 within a defined period, such as a DRS period, or within a certain number of slots / frames. In some aspects, a set of QCL SSBs may consist of SSB215s having the same (or substantially similar) QCL configuration. For example, when base station 205 transmits SSB215 twice in a sweeping manner within a period, the two instances of SSB215-d may be considered a set of QCL SSBs. In an example where base station 205 transmits SSB215 three times within a period, the three instances of SSB215-d may be considered a set of QCL SSBs. Therefore, base station 205 may repeatedly transmit multiple SSB215s (e.g., SSB215-a, 215-b, 215-c, 215-d, and 215-e) such that the set of QCL SSB215s may contain multiple instances of the same SSB215 being transmitted (e.g., multiple instances of SSB215-d). However, it should be understood that each instance of SSB215 in the set of QCL SSBs will have its own index number. For example, the first instance of SSB215-d may have an index of 0, while the next instance of SSB215-d may have an index of 4 (or some other pattern). In some embodiments, the transmitted SSB215 may also have a broadcast channel, such as the physical broadcast channel (PBCH) portion of the SSB215.

[0095] In some embodiments, each SSB215 transmitted by base station 205 may also carry or transmit parameter indications that indicate, or otherwise transmit, information associated with multiple downlink control channel locations corresponding to a set of QCL SSBs. In some embodiments, the parameter (e.g., parameter "X") may allow for overlapping downlink control channel locations (e.g., downlink control channel locations may correspond to SSB indices from a set of QCL SSBs). In some embodiments, the downlink control channel may point to a type 0 PDCCH, such as a common search space PDCCH. In some embodiments, parameter X may be an integer not higher than a defined value (e.g., 8 or less, which may be the maximum number of agreed, available SSB215s for transmission). Parameter X may use 3 bits to carry or transmit information. In some embodiments, parameter X may be a subset of integers, and the set of values ​​X can take may have sizes such as 1 / 2 / 4 / 8 (e.g., powers of 2) to conserve the number of bits required to transmit information. In some embodiments, parameter X may be common across all SSB215 transmitted by base station 205. For example, parameter X may be common across all PBCHs and in all SSB215 actually transmitted. This may support UE210 using soft synthesis techniques for broadcast channel detection of parameters. In an example where base station 205 transmits SSB215 in beamformed transmission, parameter X may not necessarily be the same as the number of beams and may be larger, for example, depending on the selection of base station 205.

[0096] Therefore, UE210 (for example, the initial access UE in this case) may receive an SSB215 (e.g., SSB215-d) from a set of QCL SSBs (e.g., multiple instances of SSB215-d and / or multiple SSB215s with the same or similar QCL configuration). UE210 may reconstruct parameter X from the received SSB and use the parameter to determine multiple downlink control channel locations corresponding to the set of QCL SSBs. As described, each instance of SSB215 may have its own associated index value (e.g., SSB215 index "x"). As an example, UE210 may receive an SSB215-d with an SSB index of 1 (e.g., x=1), and the parameter may indicate a value corresponding to the set of QCL SSBs (e.g., X=4). For downlink control channel (e.g., PDCCH carrying permission for RMSI PDSCH) detection, UE210 may search for or monitor each downlink control channel location corresponding to SSB z, where z mod X = x mod X. In the example x=1 and X=4, UE210 receives or monitors downlink control channel locations (PDCCH locations) corresponding to SSB indices such as 1, 5, 9, etc. In some embodiments, a PDCCH monitoring opportunity "z" may occur only within slots and radio frames on which SSB can potentially be transmitted, and UE210 may, in addition to the modulo condition z mod X = x mod X, determine whether the PDCCH monitoring opportunity is a potential SSB slot in order to decide whether to monitor the PDCCH for control channel information during that monitoring opportunity. In some embodiments, the downlink control channel location may be a function of the radio frame number that can be determined through the PBCH and the maximum number of SSB transmission opportunities.

[0097] Therefore, UE210 may detect or otherwise receive an SSB215 with index 1 and, based on parameter X, determine that SSB indices such as 5, 9, etc., are also associated with several downlink control channel locations. In some embodiments, the downlink control channel (e.g., RMSI PDCCH) may be transmitted within the next frame, the LBT procedure may be irrelevant, and the starting point may be after x=1, so UE210 can continue the search. This may support the UE210 being able to identify locations to monitor for downlink control channels corresponding to a set of QCL SSBs.

[0098] Therefore, based on monitoring and receiving the downlink control channel (e.g., PDCCH) that carries or transmits downlink permission, UE210 may receive downlink permission for system information (e.g., PDSCH RMSI). Based on the downlink permission, UE210 may receive system information (e.g., RMSI) and, in this example, establish a connection with base station 205 according to the received SSB215-d and system information.

[0099] Another issue related to conventional networks may relate to SSB215 rate matching. For example, in some examples of conventional techniques, system information (e.g., RMSI) may carry or transmit a bitmap (e.g., an 8-bit bitmap) indicating which SSB215 from the set of available SSB215s is being transmitted. For example, base station 205 may have a set of SSB215s that can be transmitted (e.g., each of SSB215-a to 215-e), but in practice may only transmit a subset of SSB215s (e.g., SSB215-a, 215-c, 215-e, etc.). Conventionally, UE210 may receive system information in a single PDSCH transmission and use the information indicated in the bitmap to configure or otherwise perform rate matching around the resource blocks / symbols used by the indicated SSB in subsequent PDSCH transmissions. However, such conventional techniques rely on the fact that the set of SSB215s, and / or the SSB215s actually transmitted, are the same across all frames. Such conventional techniques do not support configurations in which the available and / or actually transmitted SSB215 changes (for example, within a discovery period, between different frames or sets of frames). Therefore, the UE210 may not be able to configure or perform rate matching in situations in which the available and / or actually transmitted SSB215 changes.

[0100] Additionally, the conventional technique sizes the bitmap to accommodate the maximum size of available SSB transmission opportunities for an authorized carrier to which SSBs can always be transmitted. For unauthorized carriers where transmissions must undergo a LBT procedure before transmission, the conventional technique does not constitute a much larger number of available SSB transmission opportunities, despite the fact that many SSB transmission opportunities may be unavailable in any particular instance due to LBT failures. Therefore, the bitmap size may be increased to accommodate the maximum size expected to be used in the unauthorized system, thereby incurring high overhead. Thus, an alternative solution is desirable.

[0101] Therefore, the embodiments of the techniques described provide a mechanism (e.g., rules) that supports the UE210 in configuring or otherwise performing rate matching for situations in which the available and / or actually transmitted SSB215s change. In some embodiments, a bitmap indicated in the system information may be used (e.g., an 8-bit bitmap). However, the system information may also carry or communicate an indication of the maximum number of SSB215s available for use. In some embodiments, the maximum number of SSB215s available for use may be greater than the total number of SSB215s indicated by the bitmap (e.g., due to the bitmap size).

[0102] For example, system information (e.g., RMSI) may carry or transmit a bitmap indicating a subset of SSB215s transmitted from a set of SSB215s. As an example, the bitmap may be set to 10101010 to indicate that SSB215s with indices 0, 2, 4, and 6 have actually been transmitted, while SSB215s with indices 1, 3, 5, and 7 have not been transmitted. Thus, while the set of SSB215s may include SSB215s with indices 0 through 7, the subset of SSB215s actually transmitted includes only those with indices 0, 2, 4, and 6.

[0103] In some embodiments, the maximum number of SSB215s available for use may be greater than the set of SSB215s indicated by the bitmap (for example, due to the size of the bitmap). For example, system information (e.g., RMSI) may indicate the maximum number of SSB215 locations available for use (for example, in a parameter). As a non-limiting example, the maximum number of SSB215s available for use may be 12, 16, 24, 32, or any other number of SSB215s. In some embodiments, the maximum number of SSB215s available for use may refer to potential SSB215 locations occurring within a particular time window, such as a DRS, within a particular set of slots or frames, etc.

[0104] Based on the system information received, UE210 may determine or otherwise confirm that there are 16 SSB215s available for use (in one example), and that the bitmap shows the pattern of SSB215s actually transmitted within the set of SSB215s indicated by the bitmap (for example, in the above example for the first 8 SSBs, where the bitmap size is 8, the pattern is on, off, on, off, etc.). According to the aspect of the technique described, UE210 may repeat the pattern in the bitmap for SSB215s transmitted after the set of SSB215s indicated by the bitmap. For example, at the positions of the first 8 SSB215s, UE210 may determine that SSB215s with indices 0, 2, 4, and 6 were actually transmitted, and SSB215s with indices 1, 3, 5, and 7 were not. Repeating a pattern may involve UE210 determining that SSB215s with indices such as 8, 10, 12, and 14 have been sent for rate matching for subsequent PDSCHs, and that SSB215s with indices such as 9, 11, 13, and 15 have not been sent. Therefore, based on the bitmap and parameters indicated in the system information, UE210 may use a rule that, after a subset of SSB215s (or rather, after a set of SSB215s), SSB215s occurring within the maximum number of SSB215s will be repeated according to the pattern indicated in the bitmap.

[0105] Therefore, UE210 receives a bitmap and an indication of the maximum number of SSB215s available for use (for example, in the initial RMSI PDSCH), and may use this information to configure rate matching for receiving PDSCH transmissions. In some embodiments, UE210 may use the bitmap and the indication of the maximum number of SSB215s available for use to configure or perform rate matching in subsequent PDSCH transmissions from base station 205. For example, UE210 may use the configured rate matching for subsequent PDSCH transmissions by rate matching around the SSB215s indicated as being transmitted in (or concurrently with) the subsequent PDSCH transmission. This may support UE210 rate matching around all potential SSB215 transmissions as indicated by the bitmap, using iterations up to the maximum number of SSB215s available for use. In some embodiments, the UE210 may further configure a rate matching resource set to rate match untransmitted SSBs (for example, SSB215s with indices such as 1, 3, 5, up to the maximum number of SSB215s available for use). Thus, the UE210 may receive PDSCH transmissions according to rate matching configured based on a bitmap and an indication of the maximum number of SSB215s available for use.

[0106] In some embodiments, the described techniques for rate matching configurations may be associated with a specific discovery period (e.g., DRS). For example, various embodiments of SSB215 transmission may change periodically, as needed, or according to a schedule. Thus, base station 205 may update SSB215 in response to changes in the SSB215 transmission configuration and the associated time period or window. In one example, the configuration for SSB215 transmission may change for each DRS period, or for some or all of the DRS periods.

[0107] Figure 3 shows an example of an SSB configuration 300 supporting control search space overlap instruction according to an aspect of this disclosure. In some examples, the SSB configuration 300 may implement aspects of wireless communication systems 100 and / or 200. Aspects of the SSB configuration 300 may be implemented by a base station and / or UE, which may be examples of the corresponding devices described herein.

[0108] In general, SSB configuration 300 illustrates an example of how SSB 305 may be transmitted according to the embodiments of the technique described. In some embodiments, a base station may be configured to transmit multiple SSB 305s (for ease of reference, only one SSB 305 is labeled) to one or more UEs operating within its coverage area. For example, SSB 305s with indices 0 to 7 may be considered a first set of multiple SSBs configured for potential transmissions during a specified time period or window, such as a DRS window 310. Thus, a base station may transmit multiple SSB 305s with indices 0 to 7 during a first DRS window 310-a, multiple SSB 305s with indices 0 to 7 during a second DRS window 310-b, and multiple SSB 305s with indices 0 to 7 during a third DRS window 310-c. In some embodiments, the number and / or configuration for SSB 305s may vary from one DRS window 310 to the next.

[0109] In general, SSB305 can be used by an initial access UE to confirm synchronization information (at least to some extent) for the transmitting base station. For example, each SSB305 may carry or transmit various information such as frequency, timing, and space available to the UE in order to establish a connection with the base station. In some embodiments, multiple SSBs may be transmitted within a given window or time period, such as a DRS window 310.

[0110] In some embodiments, multiple SSB305s may comprise sets of QCL SSBs. In some embodiments, the number of SSB305s in a set of QCL SSBs may be constant for a given DRS window 310, but may be the same or vary from one DRS window 310 to the next. In some embodiments, multiple SSB305s may comprise multiple sets of QCL SSBs. As a non-limiting example, SSB305s with indices 0 and 4 may form a first set of QCL SSBs (indicated by a downward-sloping diagonal hatching pattern), SSB305s with indices 1 and 5 may form a second set of QCL SSBs (indicated by a cross-hatching pattern), SSB305s with indices 2 and 6 may form a third set of QCL SSBs (indicated by an upward-sloping diagonal hatching pattern), and SSB305s with indices 3 and 7 may form a fourth set of QCL SSBs (indicated by a horizontal hatching pattern).

[0111] Traditionally, an initial access UE may receive an SSB305, and based on the index of the received SSB305, the UE may know that the index is associated with a corresponding downlink control channel location (e.g., a time, frequency, space, or other location for the UE to monitor the PDCCH signal). However, embodiments of the technique described support a mechanism in which additional candidate SSB305 locations may be constituted. That is, multiple SSB305s may include more than the eight SSB305s illustrated in Figure 3, for example, 12, 16, or some other number of potential SSB305 locations. In some embodiments, the number of SSBs actually transmitted may be less than the number of possible SSB305 locations. In this situation, each set of QCL SSBs may include more than the two SSB305s described in the example above. For example, the first set of QCL SSBs may include SSB305s with indices such as 0, 4, 8 (not shown), 12 (also not shown).

[0112] Furthermore, some wireless networks may operate in mmW networks where a base station must perform an LBT procedure before transmitting each (or some or all) SSB305. As can be understood, not all LBT procedures are successful, and therefore, a base station may not be able to transmit an SSB305 until the LBT procedure is successful. In the first example, the LBT procedure may succeed during DRS window 310-a, allowing the base station to begin transmitting an SSB305 starting with SSB index 0. However, in the second example, the LBT procedure may not initially pass during DRS window 310-b, but instead pass or succeed at the time when the base station is able to begin transmitting an SSB305 starting with SSB index 2. In the third example, the LBT procedure may not pass during DRS window 310-c until the time when an SSB305 with index 4 is scheduled for transmission. Therefore, the number of transmitted SSB305s may vary depending on whether the LBT procedure is successful or not. In some examples, a base station might choose to transmit only four of the eight configured SSBs in order to minimize the number of SSBs actually transmitted, while ensuring that an SSB from each of the four sets of QCL SSBs is transmitted at least once.

[0113] All of these issues can pose problems for an initial access UE hoping to establish a connection with a base station. For example, a UE might detect or receive an SSB305 with an index of 1. Traditionally, the UE would use the index of the received SSB305 to identify a location for monitoring the downlink control channel (e.g., PDCCH) because the conventional technique relied on a one-to-one mapping between the SSB305 index and the corresponding downlink control channel location. However, this technique can be problematic when multiple SSB indices overlap with the same (or substantially the same) downlink control channel locations, such as when a set of QCL SSBs is used, or when some of the SSB locations are not transmitted due to LBT failures. For example, if an SSB is detected at location 1, in a conventional system, the UE might look for a PDCCH with the same QCL in the vicinity of SSB location 1 during a subsequent DRS opportunity. However, during a subsequent DRS opportunity, the SSB and system information may not be sent at location 1 due to an LBT failure, but may be sent at location 5. Since locations 5 and 1 have the same QCL, if the UE was looking for PDSCH / system information near location 5, it would have been able to receive the system information.

[0114] Therefore, the embodiments of the technique described provide a mechanism in which each SSB305 has a corresponding index, but a set of QCL SSBs can be associated with the same (or substantially similar) downlink control channel location. In some embodiments, this may involve the base station configuring the SSBs to include, or otherwise transmit, a parameter indication that shows information associated with the downlink control channel location corresponding to the set of QCL SSBs. For example, the parameter (e.g., parameter "X") may be an integer or a subset of integers, depending on the number of bits used to transmit the parameter indication in each SSB305. In general, each SSB305 in a set of QCL SSBs may have the same or substantially similar QCL configuration. In some examples, the parameter may not necessarily relate to the number of beams used to transmit the SSB305.

[0115] The UE may receive SSB305 (e.g., SSB index 1, or x=1) and determine the parameters indicated in SSB305. The UE may use this information to determine the downlink control channel location corresponding to the set of QCL SSBs. Generally, the downlink control channel location may refer to the time, frequency, space, or any other resources used by the base station to transmit the downlink control channel. The UE may receive the determined downlink control channel location corresponding to the set of QCL SSBs (e.g., by monitoring) in order to receive downlink authorization for system information (e.g., RMSI PDSCH) on at least one of the downlink control channel locations. The UE may receive the system information in accordance with the authorization and, based on the received SSB305, system information, etc., may establish a connection to the base station.

[0116] As described, in some embodiments, the parameter may carry or communicate an indication of the offset between consecutive SSB305s in a set of QCL SSBs. In the example described above, SSB305s with indices 0 and 4 may be considered the first set of QCL SSBs, where in this example, the parameter may indicate a value of "4" to inform the UE that every four SSB305s have or can use the same or similar QCL configuration and / or can be associated with the same or similar PDCCH location. Thus, a UE receiving an SSB305 with index 1 may know that an SSB305 with index 5 can use the same or substantially similar QCL configuration.

[0117] In some embodiments, some or all of the SSB305 can be carried or transmitted in the PBCH. Since the same parameters may overlap in each SSB305, the UE can perform soft synthesis across multiple SSB305s to determine the indicated parameters.

[0118] Figures 4A and 4B show examples of SSB configurations 400 supporting control search space overlap instructions according to aspects of this disclosure. In some examples, SSB configuration 400 may implement wireless communication systems 100 and / or 200, and / or aspects of SSB configuration 300. Aspects of SSB configuration 400 may be implemented by base stations and / or UEs, which may be examples of corresponding devices described herein.

[0119] As explained, conventional techniques typically involve an RMSI PDSCH that carries or transmits an 8-bit bitmap instruction indicating which set of up to 8 SSBs is actually being transmitted. The PDSCH transmission would then rate-match around the resource blocks / symbols used by the indicated SSBs. However, this design is based on the fact that the set of SSBs actually transmitted is the same across all frames. Therefore, conventional techniques do not support scenarios where the actual number of SSBs being transmitted and / or available may vary from one frame to the next, from one DRS period to the next, etc. Additionally, conventional techniques sized the bitmap to accommodate the maximum size of available SSB transmission opportunities for an authorized carrier in which SSBs can always be transmitted. For unauthorized carriers in which transmissions must undergo an LBT procedure before transmission, we may want to constitute a much larger number of available SSB transmission opportunities, since a large number of SSB transmission opportunities may be unavailable in any particular instance due to LBT failure. Therefore, we may increase the bitmap size for the maximum size expected to be used in an unauthorized system, thereby incurring high overhead. Therefore, alternative solutions are desirable. Accordingly, the embodiments of the techniques described support improved rate matching behavior in such scenarios.

[0120] For example, a base station may transmit the maximum number of SSB405s available for use. Generally, the maximum number of SSB405s available for use may refer to the possible locations where SSB transmissions may occur. In the example shown in Figure 4A, the maximum number of SSB405s available for use may include 16 SSB locations, while in Figure 4B, the maximum number of SSB405s available for use may include 12 SSB locations. Other configurations may also be used for the maximum number of SSB405s available for use.

[0121] In some embodiments, bitmaps used in conventional networks may be applied, in at least some embodiments, according to the techniques described. For example, a base station may transmit (and which a UE may receive) system information (e.g., RMSI PDSCH) that carries or transmits a bitmap instruction indicating a subset of SSBs transmitted from a set of SSBs. Referring to SSB configurations 400-a and 400-b, the bitmap may be set to "10101010" to indicate that the set of SSBs includes SSBs having indices 0 through 7. In this context, the set of SSBs may refer to each of the SSBs having indices 0 through 7, where the subset of SSBs actually transmitted from the set of SSBs may include SSBs having indices 0, 2, 4, and 6 (as indicated by the hatch pattern). The information or pattern indicated in the bitmap may refer to (per / bitmap) SSB410.

[0122] However, the maximum number of SSB405s available for use in this scenario may be greater than the set of SSBs (for example, the maximum number of SSB405s available for use may be 16 as shown in Figure 4A, or 12 as shown in Figure 4B). Therefore, the base station may also configure system information to carry or communicate an indication of the maximum number of SSB405s available for use (e.g., the maximum SSB location used). For example, the system information may include bits or fields configured to communicate an indication of the maximum number of SSBs available for use (e.g., a fixed count of SSBs used, an end location for the last used SSB, etc.).

[0123] In some embodiments, the UE may receive system information and reconstruct a bitmap and an indication of the maximum number of SSBs available for use. The UE may use this information to configure rate matching for PDSCH transmissions. In some embodiments, this may involve the UE repeating the pattern indicated in the bitmap for SSBs that occur after an SSB in a set of SSBs (e.g., occurring after a subset of SSBs that have actually been transmitted). In the examples described above, the pattern may generally indicate that the first SSB is transmitted (SSB index 0), the second SSB is not transmitted (SSB index 1), the third SSB is transmitted (SSB index 2), the fourth SSB is not transmitted (SSB index 3), and so on. The UE may use this pattern for the remaining SSBs within the maximum number of SSBs available for use (405). For example, the UE may know that SSB index 8 will be transmitted, SSB index 9 will not be transmitted, SSB index 10 will be transmitted, and so on (this is indicated as bitmap-indicated SSBs repeated 415). Thus, the UE may use this information for PDSCH rate matching, based on the bitmap and the maximum number of SSBs available for use 405. A reference to an SSB corresponding to an SSB index that will be transmitted may also refer to the UE assumption of SSB transmissions regarding PDSCH rate matching that the base station may not actually be transmitting that particular SSB. In some embodiments, the UE may receive the bitmap and the indication of the maximum number of SSBs available for use in a first PDSCH (e.g., an RMSI PDSCH) and use the configured rate matching in subsequent PDSCH transmissions (e.g., and non-RMSI PDSCH transmissions). For example, the UE may rate match around the SSBs being transmitted between subsequent PDSCH transmissions.

[0124] In the example shown in Figure 4B, the UE can use the bitmap (or the pattern shown in the bitmap) and the indication of the maximum number of SSBs used to determine that SSB index 8 is being transmitted, SSB index 9 is not being transmitted, SSB index 10 is being transmitted, and SSB index 11 is not being transmitted (again, this is indicated as repetition 415 of the SSB shown in the bitmap). Thus, in subsequent PDSCH transmissions, the UE can use this information to rate match around the SSBs that are actually being transmitted.

[0125] Figure 5 shows an example of a process 500 that supports control search space overlap instruction according to an aspect of this disclosure. In some examples, process 500 may implement aspects of wireless communication systems 100, 200, and / or SSB configurations 300, 400. Aspects of process 500 may be performed by base stations 505 and / or UEs 510, which may be examples of corresponding devices described herein.

[0126] In 515, base station 505 may transmit (and UE 510 may receive) an SSB from a set of QCL SSBs. In some embodiments, the SSB may carry or transmit parameter indications that show information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs. In some embodiments, the parameter may carry or transmit indications of offsets between consecutive SSBs within the set of QCL SSBs. In some embodiments, this may involve base station 505 transmitting (and UE 510 receiving) a PBCH portion of the SSB, for example, the PBCH portion may carry or transmit parameter indications. In some embodiments, UE 510 may receive multiple instances of the SSB (or the PBCH portion of the SSB) and use soft synthesis across multiple SSBs to reconstruct the parameter.

[0127] In some embodiments, base station 505 may transmit multiple SSBs to one or more UEs located within its coverage area. In some embodiments, each SSB may further transmit or indicate various synchronization information that can be used by such UEs to synchronize with base station 505 to at least some extent.

[0128] In 520, UE510 may determine multiple downlink control channel locations corresponding to a set of QCL SSBs, at least in part, based on parameters. In some embodiments, this may involve UE510 determining the index of each SSB in the set of QCL SSBs. UE510 may use the index to determine multiple downlink control channel locations. In some embodiments, this may be based on the frame from which the SSB is received and the parameters indicated in the SSB. In some embodiments, the multiple downlink control channel locations may point to a type 0 PDCCH common search space.

[0129] In 525, base station 505 may transmit (and be received by UE 510) a downlink permission for system information, at least in part on the UE 510 monitoring one or more of the downlink control channel locations. In some embodiments, this may include UE 510 monitoring each of the multiple downlink control channel locations in order to receive a downlink permission. For example, UE 510 may determine that no downlink control information was detected during a first instance of the multiple downlink control channel locations (e.g., in the first downlink control channel location). Thus, UE 510 may monitor a second instance of the multiple downlink control channel locations (e.g., in a second, third, fourth, etc., as needed) in order to detect a downlink permission.

[0130] In 530, base station 505 may transmit (and UE 510 may receive) system information in accordance with downlink permission. In some embodiments, the system information may refer to the RMSI indicated in the PDSCH transmission from base station 505. In 535, base station 505 and UE 510 may establish a connection based at least in part on the SSB received in 515 and the system information.

[0131] Figure 6 shows an example of a process 600 supporting control search space overlap instruction according to an aspect of this disclosure. In some examples, process 600 may implement aspects of wireless communication systems 100, 200, and / or SSB configurations 300, 400. Aspects of process 600 may be implemented by base stations 605 and / or UE 610, which may be examples of corresponding devices described herein.

[0132] In 615, base station 605 may transmit (and UE610 may receive) system information that carries or transmits a bitmap indication of a subset of SSBs transmitted from a set of SSBs. In some embodiments, the system information may also carry or transmit an indication of the maximum number of SSBs available for use. In some embodiments, the maximum number of SSBs available for use may be greater than the total number of SSBs in the set of SSBs. In some embodiments, the system information is transmitted in a previous PDSCH transmission. In some embodiments, the system information may refer to an RMSI indicated in a previous PDSCH transmission.

[0133] In 620, UE610 may configure rate matching based at least in part on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use indicated. In some embodiments, this may involve UE610 repeating a pattern in the bitmap for a subset of SSBs within a set of SSBs, and then for SSBs occurring within the maximum number of SSBs available for use after the subset of SSBs.

[0134] In 625, base station 605 may transmit (and UE 610 may receive) a PDSCH transmit at least in part on rate matching. As described, this may include system information being transmitted in a preceding PDSCH transmit, while UE 610 performs a PDSCH transmit with base station 605 by rate matching around the SSBs transmitted in a subsequent PDSCH transmit. In some embodiments, PDSCH transmits may be received during the same discovery period (e.g., DRS period) in which the maximum number of SSBs available for use may be transmitted.

[0135] Figure 7 shows a block diagram 700 of a device 705 supporting control search space overlap instruction according to an aspect of the present disclosure. Device 705 may be an example of an aspect of UE 115 as described herein. Device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. Device 705 may also include a processor. Each of these components may be communicating with one another (for example, via one or more buses).

[0136] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., information about control channels, data channels, and control search space overlap instructions). This information may be passed to other components of device 705. The receiver 710 may be an example of an embodiment of the transceiver 1020, which will be described with reference to Figure 10. The receiver 710 may utilize a single antenna or a set of antennas.

[0137] The communication manager 715 may receive from the base station an SSB from a set of QCL SSBs, wherein the SSB includes parameter indications showing information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; determine the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters; receive a downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations; receive system information based on the downlink permission; and establish a connection with the base station based on the SSB and the received system information. The communication manager 715 may also receive system information, which includes a bitmap showing a subset of SSBs transmitted from the set of SSBs, wherein the system information further indicates a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and receive a physical downlink shared channel transmission based on rate matching. The communication manager 715 may be an example of an embodiment of the communication manager 1010 described herein.

[0138] The communications manager 715 or its subordinate components may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or in any combination thereof. If implemented in code executed by a processor, the functions of the communications manager 715 or its subordinate components may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein.

[0139] The communications manager 715 or its subordinate components may be physically located in various locations, including distributed so that parts of its functionality are implemented in different physical locations by one or more physical components. In some examples, the communications manager 715 or its subordinate components may be separate and different components according to various aspects of this disclosure. In some examples, the communications manager 715 or its subordinate components may be combined with one or more other hardware components, including, but not limited to, input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof according to various aspects of this disclosure.

[0140] The transmitter 720 may transmit signals generated by other components of device 705. In some examples, the transmitter 720 may be coupled with the receiver 710 in the transceiver module. For example, the transmitter 720 may be an example of an embodiment of the transceiver 1020, which will be described with reference to Figure 10. The transmitter 720 may utilize a single antenna or a set of antennas.

[0141] Figure 8 shows a block diagram 800 of a device 805 supporting control search space overlap instruction according to an aspect of this disclosure. Device 805 may be an example of an aspect of device 705 or UE115 as described herein. Device 805 may include a receiver 810, a communication manager 815, and a transmitter 850. Device 805 may also include a processor. Each of these components may be communicating with one another (for example, via one or more buses).

[0142] Receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., information about control channels, data channels, and control search space overlap instructions). This information may be passed to other components of device 805. Receiver 810 may be an example of an embodiment of transceiver 1020, which will be described with reference to Figure 10. Receiver 810 may utilize a single antenna or a set of antennas.

[0143] Communication manager 815 may be an example of an embodiment of communication manager 715 as described herein. Communication manager 815 may include QCL SSB manager 820, PDCCH location manager 825, RMSI manager 830, connection manager 835, SSB parameter manager 840, and rate matching manager 845. Communication manager 815 may be an example of an embodiment of communication manager 1010 as described herein.

[0144] The QCL SSB manager 820 may receive an SSB from a base station, where the SSB includes parameter instructions indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs.

[0145] The PDCCH location manager 825 may receive downlink permission for system information based on parameters, determining a set of downlink control channel locations corresponding to a set of QCL SSBs, and monitoring one or more downlink control channel locations from the set of downlink control channel locations.

[0146] The RMSI manager 830 can receive system information based on downlink permission.

[0147] The connection manager 835 can establish a connection with the base station based on the SSB and received system information.

[0148] The SSB parameter manager 840 receives system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information may further indicate the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs.

[0149] The rate matching manager 845 may configure rate matching based on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use as indicated, and may also receive physical downlink shared channel transmissions based on rate matching.

[0150] The transmitter 850 may transmit signals generated by other components of device 805. In some examples, the transmitter 850 may be coupled with the receiver 810 in a transceiver module. For example, the transmitter 850 may be an example of an embodiment of the transceiver 1020 described with reference to Figure 10. The transmitter 850 may utilize a single antenna or a set of antennas.

[0151] Figure 9 shows a block diagram 900 of a communications manager 905 supporting control search space overlap instruction according to an aspect of this disclosure. Communications manager 905 may be an example of an aspect of communications manager 715, communications manager 815, or communications manager 1010 described herein. Communications manager 905 may include a QCL SSB manager 910, a PDCCH location manager 915, an RMSI manager 920, a connection manager 925, a PBCH manager 930, an SSB index manager 935, an SSB parameter manager 940, a rate matching manager 945, an SSB pattern manager 950, and a PDSCH location manager 955. Each of these modules may communicate with one another directly or indirectly (for example, via one or more buses).

[0152] The QCL SSB manager 910 may receive an SSB from a base station, where the SSB includes a parameter indication that shows information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs. In some cases, the parameter includes an indication of an offset between consecutive SSBs in the set of QCL SSBs.

[0153] The PDCCH location manager 915 may determine a set of downlink control channel locations corresponding to a set of QCL SSBs based on parameters. In some examples, the PDCCH location manager 915 may receive downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations. In some examples, the PDCCH location manager 915 may determine a set of downlink control channel locations based on the frame in which the SSB is received and the parameters indicated in the SSB.

[0154] In some examples, the PDCCH location manager 915 may monitor each downlink control channel location in a set of downlink control channel locations. In some examples, the PDCCH location manager 915 may determine that no downlink control information was found during a first instance of the set of downlink control channel locations. In some examples, the PDCCH location manager 915 may monitor a second instance of the set of downlink control channel locations to find downlink permission based on parameters. In some cases, the downlink control channel locations in the set of downlink control channel locations include a Type 0 physical downlink control channel common search space.

[0155] The RMSI Manager 920 can receive system information based on downlink permission.

[0156] The connection manager 925 can establish a connection with the base station based on the SSB and received system information.

[0157] The SSB parameter manager 940 receives system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information may further indicate the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs.

[0158] The rate matching manager 945 may configure rate matching based on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use as indicated.

[0159] In some cases, the rate matching manager 945 may receive physical downlink shared channel transmissions based on rate matching.

[0160] The PBCH manager 930 may receive the physical broadcast channel portion of an SSB, which may contain parameter instructions. In some examples, the PBCH manager 930 may perform soft synthesis across a set of SSBs. In some cases, the parameter instructions are common across each SSB in the set.

[0161] The SSB index manager 935 may determine the index for each SSB in the set of QCL SSBs. In some examples, the SSB index manager 935 may determine a set of downlink control channel locations based on the determined index for each SSB in the set of QCL SSBs.

[0162] The SSB pattern manager 950 can repeat patterns in a bitmap for a subset of SSBs within a set of SSBs, and for SSBs that occur after the subset of SSBs, within the maximum number of SSBs available for use.

[0163] The PDSCH location manager 955 may receive previous physical downlink shared channel transmissions containing system information.

[0164] In some cases, the PDSCH location manager 955 may decode system information to identify a bitmap, where rate matching is not performed on the previous physical downlink shared channel. In some cases, physical downlink shared channel transmissions are received during the same discovery period, where the maximum number of SSBs available for use may be transmitted.

[0165] Figure 10 shows a diagram of system 1000 including a device 1005 that supports control search space overlap instruction according to an aspect of the present disclosure. Device 1005 may be an example of a component of device 705, device 805, or UE 115 as described herein, or may include a component thereof. Device 1005 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may be communicating electronically via one or more buses (e.g., bus 1045).

[0166] The communication manager 1010 may receive an SSB from a base station, wherein the SSB includes parameter indications showing information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; determine the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters; receive a downlink permission for system information based on monitoring one or more downlink control channel locations from the set of downlink control channel locations; receive system information based on the downlink permission; and establish a connection with the base station based on the SSB and the received system information. The communication manager 1010 may also receive system information, which includes a bitmap showing a subset of SSBs transmitted from the set of SSBs, wherein the system information further indicates a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and receive a physical downlink shared channel transmission based on rate matching.

[0167] The I / O controller 1015 can manage input and output signals for device 1005. The I / O controller 1015 can also manage peripheral devices not integrated into device 1005. In some cases, the I / O controller 1015 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 1015 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. In other cases, the I / O controller 1015 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 1015 may be implemented as part of a processor. In some cases, a user may interact with device 1005 via the I / O controller 1015 or via hardware components controlled by the I / O controller 1015.

[0168] As described above, the transceiver 1020 may communicate bidirectionally via one or more antennas, wired links, or wireless links. For example, the transceiver 1020 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1020 may also include a modem for modulating packets, feeding the modulated packets to the antenna for transmission, and demodulating packets received from the antenna.

[0169] In some cases, the wireless device may include a single antenna 1025. However, in some cases, the device may have two or more antennas 1025 that may be capable of transmitting or receiving multiple wireless transmissions simultaneously.

[0170] Memory 1030 may include RAM and ROM. Memory 1030 may store computer-readable, computer-executable code 1035, which, when executed, includes instructions that cause the processor to perform various functions described herein. In some cases, memory 1030 may include a BIOS that can control basic hardware or software operations, such as interaction with peripheral components or devices.

[0171] The processor 1040 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 1040. The processor 1040 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks that support control search space overlap instructions).

[0172] Code 1035 may include instructions for carrying out aspects of this disclosure, including instructions for supporting wireless communication. Code 1035 may be stored in a non-temporary computer-readable medium, such as system memory or other types of memory. In some cases, Code 1035 may not be directly executable by processor 1040, but (for example, when compiled and executed) may cause the computer to perform the functions described herein.

[0173] Figure 11 shows a block diagram 1100 of a device 1105 supporting control search space overlap instruction according to an aspect of the present disclosure. Device 1105 may be an example of an aspect of a base station 105 as described herein. Device 1105 may include a receiver 1110, a communications manager 1115, and a transmitter 1120. Device 1105 may also include a processor. Each of these components may be communicating with one another (for example, via one or more buses).

[0174] Receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., information about control channels, data channels, and control search space overlap instructions). This information may be passed to other components of device 1105. Receiver 1110 may be an example of an embodiment of transceiver 1420, which will be described with reference to Figure 14. Receiver 1110 may utilize a single antenna or a set of antennas.

[0175] The communication manager 1115 may transmit a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes a parameter indication showing information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; transmit a downlink authorization for system information on the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameter; transmit the system information in accordance with the authorization; and establish a connection with the UE based on the SSBs and the system information. The communication manager 1115 may also transmit system information including a bitmap showing a subset of SSBs transmitted from the set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and perform a physical downlink shared channel transmission based on rate matching. The communication manager 1115 may be an example of an embodiment of the communication manager 1410 described herein.

[0176] The communication manager 1115 or its subordinate components may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or in any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1115 or its subordinate components may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein.

[0177] The communication manager 1115 or its subordinate components may be physically located in a variety of locations, including being distributed so that parts of its functionality are implemented in different physical locations by one or more physical components. In some examples, the communication manager 1115 or its subordinate components may be separate and different components according to various aspects of this disclosure. In some examples, the communication manager 1115 or its subordinate components may be combined with one or more other hardware components, including, but not limited to, input / output (I / O) components, transceivers, network servers, other computing devices, one or more other components described in this disclosure, or combinations thereof according to various aspects of this disclosure.

[0178] The transmitter 1120 may transmit signals generated by other components of device 1105. In some examples, the transmitter 1120 may be coupled with the receiver 1110 in a transceiver module. For example, the transmitter 1120 may be an example of an embodiment of the transceiver 1420, which will be described with reference to Figure 14. The transmitter 1120 may utilize a single antenna or a set of antennas.

[0179] Figure 12 shows a block diagram 1200 of a device 1205 supporting control search space overlap instruction according to an aspect of the present disclosure. Device 1205 may be an example of an aspect of device 1105 or base station 105 as described herein. Device 1205 may include a receiver 1210, a communications manager 1215, and a transmitter 1250. Device 1205 may also include a processor. Each of these components may be communicating with one another (for example, via one or more buses).

[0180] Receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., information about control channels, data channels, and control search space overlap instructions). This information may be passed to other components of device 1205. Receiver 1210 may be an example of an embodiment of transceiver 1420, which will be described with reference to Figure 14. Receiver 1210 may utilize a single antenna or a set of antennas.

[0181] Communication manager 1215 may be an example of an embodiment of communication manager 1115 as described herein. Communication manager 1215 may include QCL SSB manager 1220, PDCCH location manager 1225, RMSI manager 1230, connection manager 1235, SSB parameter manager 1240, and rate matching manager 1245. Communication manager 1215 may be an example of an embodiment of communication manager 1410 as described herein.

[0182] The QCL SSB manager 1220 may transmit a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes parameter instructions indicating information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs.

[0183] The PDCCH location manager 1225 may, based on parameters, send downlink permission for system information on a set of downlink control channel locations corresponding to a set of QCL SSBs.

[0184] The RMSI manager 1230 may transmit system information according to its permission.

[0185] The connection manager 1235 can establish a connection with the UE based on the SSB and system information.

[0186] The SSB parameter manager 1240 transmits system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information may further indicate the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs.

[0187] The rate matching manager 1245 may configure rate matching based on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use as indicated, and may perform physical downlink shared channel transmissions based on rate matching.

[0188] The transmitter 1250 may transmit signals generated by other components of device 1205. In some examples, the transmitter 1250 may be coupled with the receiver 1210 in the transceiver module. For example, the transmitter 1250 may be an example of an embodiment of the transceiver 1420, which will be described with reference to Figure 14. The transmitter 1250 may utilize a single antenna or a set of antennas.

[0189] Figure 13 shows a block diagram 1300 of a communications manager 1305 supporting control search space overlap instruction according to an aspect of this disclosure. Communications manager 1305 may be an example of an aspect of communications manager 1115, communications manager 1215, or communications manager 1410 as described herein. Communications manager 1305 may include a QCL SSB manager 1310, a PDCCH location manager 1315, an RMSI manager 1320, a connection manager 1325, a PBCH manager 1330, an SSB parameter manager 1335, a rate matching manager 1340, an SSB pattern manager 1345, and a PDSCH location manager 1350. Each of these modules may communicate with one another directly or indirectly (for example, via one or more buses).

[0190] The QCL SSB manager 1310 may transmit a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes a parameter indication showing information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs. In some cases, the parameter includes an indication of an offset between consecutive SSBs in the set of QCL SSBs.

[0191] The PDCCH location manager 1315 may, based on the parameters, send downlink permission for system information on a set of downlink control channel locations corresponding to a set of QCL SSBs.

[0192] The RMSI manager 1320 may transmit system information according to its permissions.

[0193] The connection manager 1325 can establish a connection with the UE based on the SSB and system information.

[0194] The SSB parameter manager 1335 transmits system information, which includes a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information may further indicate the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs.

[0195] The rate matching manager 1340 may configure rate matching based on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use as indicated. In some examples, the rate matching manager 1340 may perform physical downlink shared channel transmissions based on rate matching.

[0196] The PBCH manager 1330 may transmit the physical broadcast channel portion of the SSB, where the physical broadcast channel portion of the SSB includes parameter instructions. In some cases, the parameter instructions are common across each SSB in a set of SSBs.

[0197] The SSB pattern manager 1345 can repeat the pattern in the bitmap for transmitting a subset of SSBs within a set of SSBs, and after the subset of SSBs, for an additional set of SSBs transmitted within the maximum number of SSBs available for use.

[0198] The PDSCH location manager 1350 may perform a previous physical downlink shared channel transmission, which may include system information.

[0199] Figure 14 shows a diagram of a system 1400 including a device 1405 that supports control search space overlap instruction according to an aspect of the present disclosure. Device 1405 may be an example of a component of device 1105, device 1205, or base station 105 as described herein, or may include a component thereof. Device 1405 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1410, a network communication manager 1415, a transceiver 1420, an antenna 1425, a memory 1430, a processor 1440, and an inter-station communication manager 1445. These components may be in electronic communication over one or more buses (e.g., bus 1450).

[0200] The communication manager 1410 may transmit a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes parameter indications showing information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs; transmit a downlink authorization for system information on the set of downlink control channel locations corresponding to the set of QCL SSBs based on the parameters; transmit the system information in accordance with the authorization; and establish a connection with the UE based on the SSBs and the system information. The communication manager 1410 may also transmit system information including a bitmap showing a subset of SSBs transmitted from the set of SSBs, the system information further indicating a maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs; configure rate matching based on the subset of SSBs shown by the bitmap and the indicated maximum number of SSBs available for use; and perform a physical downlink shared channel transmission based on rate matching.

[0201] The network communication manager 1415 may manage communication with the core network (for example, via one or more wired backhaul links). For example, the network communication manager 1415 may manage the transfer of data communications for client devices, such as one or more UEs 115.

[0202] As described above, the transceiver 1420 may communicate bidirectionally via one or more antennas, wired links, or wireless links. For example, the transceiver 1420 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1420 may also include a modem for modulating packets, feeding the modulated packets to the antenna for transmission, and demodulating packets received from the antenna.

[0203] In some cases, the wireless device may include a single antenna 1425. However, in some cases, the device may have two or more antennas 1425, which may be capable of transmitting or receiving multiple wireless transmissions simultaneously.

[0204] Memory 1430 may include RAM, ROM, or a combination thereof. Memory 1430 may store computer-readable code 1435, which, when executed by a processor (e.g., processor 1440), includes instructions that cause the device to perform various functions described herein. In some cases, memory 1430 may include a BIOS that can control basic hardware or software operations, such as interaction with peripheral components or devices.

[0205] The processor 1440 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1440 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into the processor 1440. The processor 1440 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1430) to cause device 1405 to perform various functions (e.g., functions or tasks that support control search space overlap instructions).

[0206] The inter-station communication manager 1445 can manage communication with other base stations 105 and may include a controller or scheduler to coordinate communication with the UE 115 in cooperation with other base stations 105. For example, the inter-station communication manager 1445 may coordinate the scheduling of transmissions to the UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communication manager 1445 may provide an X2 interface within the LTE / LTE-A wireless communication network technology for communication between base stations 105.

[0207] Code 1435 may include instructions for carrying out aspects of this disclosure, including instructions for supporting wireless communication. Code 1435 may be stored in a non-temporary computer-readable medium, such as system memory or other types of memory. In some cases, Code 1435 may not be directly executable by processor 1440, but (for example, when compiled and executed) may cause the computer to perform the functions described herein.

[0208] Figure 15 shows a flowchart illustrating method 1500 supporting control search space overlap instructions according to an aspect of this disclosure. The operation of method 1500 may be performed by a UE 115 or its components as described herein. For example, the operation of method 1500 may be performed by a communications manager as described with reference to Figures 7 to 10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the functions described below. In addition or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0209] In 1505, the UE may receive from the base station an SSB from a set of QCL SSBs, the SSB containing parameter indications that show information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs. The operation of 1505 may be performed according to the methods described herein. In some examples, the operation of 1505 may be performed by a QCL SSB manager, as described with reference to Figures 7 to 10.

[0210] In 1510, the UE may determine, based on parameters, a set of downlink control channel locations corresponding to a set of QCL SSBs. The operation of 1510 may be performed according to the methods described herein. In some examples, the operation of 1510 may be performed by a PDCCH location manager, as described with reference to Figures 7 to 10.

[0211] In 1515, the UE may receive downlink permission for system information based on monitoring one or more downlink control channel locations from a set of downlink control channel locations. The operation of 1515 may be performed according to the methods described herein. In some examples, the operation of 1515 may be performed by a PDCCH location manager, as described with reference to Figures 7 to 10.

[0212] In 1520, the UE may receive system information based on downlink permission. The operation of 1520 may be performed according to the methods described herein. In some examples, the operation of 1520 may be performed by an RMSI manager, as described with reference to Figures 7 to 10.

[0213] In 1525, the UE may establish a connection with the base station based on the SSB and received system information. The operation of 1525 may be performed according to the methods described herein. In some examples, the operation of 1525 may be performed by a connection manager, as described with reference to Figures 7 to 10.

[0214] Figure 16 shows a flowchart illustrating a method 1600 that supports control search space overlap instructions according to an aspect of this disclosure. The operation of method 1600 may be performed by a base station 105 or its components as described herein. For example, the operation of method 1600 may be performed by a communications manager as described with reference to Figures 11 to 14. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. In addition or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0215] In 1605, the base station may transmit a set of SSBs, the set of SSBs including a set of QCL SSBs, where each SSB in the set of SSBs includes parameter indications showing information associated with a set of downlink control channel locations corresponding to the set of QCL SSBs. The operation of 1605 may be performed according to the methods described herein. In some examples, the operation of 1605 may be performed by a QCL SSB manager, as described with reference to Figures 11 to 14.

[0216] In 1610, the base station may transmit downlink permission for system information on a set of downlink control channel locations corresponding to a set of QCL SSBs, based on parameters. The operation of 1610 may be performed according to the methods described herein. In some examples, the operation of 1610 may be performed by a PDCCH location manager, as described with reference to Figures 11-14.

[0217] In 1615, the base station may transmit system information as permitted. The operation of 1615 may be performed according to the methods described herein. In some examples, the operation of 1615 may be performed by an RMSI manager, as described with reference to Figures 11 to 14.

[0218] In 1620, the base station may establish a connection with the UE based on the SSB and system information. The operation of 1620 may be performed according to the methods described herein. In some examples, the operation of 1620 may be performed by a connection manager, as described with reference to Figures 11 to 14.

[0219] Figure 17 shows a flowchart illustrating method 1700 supporting control search space overlap instructions according to an aspect of this disclosure. The operation of method 1700 may be performed by a UE 115 or its components as described herein. For example, the operation of method 1700 may be performed by a communications manager as described with reference to Figures 7 to 10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the functions described below. In addition or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0220] In 1705, the UE receives system information, which includes a bitmap indicating a subset of SSBs transmitted from a set of SSBs, the system information may further indicate the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs. The operation of 1705 may be performed according to the methods described herein. In some examples, the operation of 1705 may be performed by an SSB parameter manager, as described with reference to Figures 7 to 10.

[0221] In 1710, the UE may configure rate matching based on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use as indicated. The operation of 1710 may be performed according to the methods described herein. In some examples, the operation of 1710 may be performed by a rate matching manager, as described with reference to Figures 7 to 10.

[0222] In 1715, the UE may receive physical downlink shared channel transmissions based on rate matching. The operation of 1715 may be performed according to the methods described herein. In some examples, the operation of 1715 may be performed by a rate matching manager, as described with reference to Figures 7 to 10.

[0223] Figure 18 shows a flowchart illustrating a method 1800 supporting control search space overlap instructions according to an aspect of this disclosure. The operation of method 1800 may be performed by a base station 105 or its components as described herein. For example, the operation of method 1800 may be performed by a communications manager as described with reference to Figures 11 to 14. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. In addition or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0224] In 1805, the base station may transmit system information including a bitmap showing a subset of SSBs transmitted from a set of SSBs, wherein the system information may further indicate the maximum number of SSBs available for use, where the maximum number of SSBs available for use is greater than the total number of SSBs in the set of SSBs. The operation of 1805 may be performed according to the methods described herein. In some examples, the operation of 1805 may be performed by an SSB parameter manager, as described with reference to Figures 11 to 14.

[0225] In 1810, the base station may configure rate matching based on a subset of SSBs indicated by a bitmap and the maximum number of SSBs available for use as indicated. The operation of 1810 may be performed according to the methods described herein. In some examples, the operation of 1810 may be performed by a rate matching manager, as described with reference to Figures 11 to 14.

[0226] In 1815, the base station may perform physical downlink shared channel transmission based on rate matching. The operation of 1815 may be performed according to the methods described herein. In some examples, the operation of 1815 may be performed by a rate matching manager, as described with reference to Figures 11 to 14.

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

[0228] The techniques described herein can be used for a variety of wireless communication systems, including Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), and other systems. CDMA systems may implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA). CDMA2000 covers the IS-2000, IS-95, and IS-856 standards. IS-2000 releases are sometimes commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High-Speed ​​Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA®) and other variations of CDMA. TDMA systems may implement radio technologies such as the Global System for Mobile Communications (GSM).

[0229] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Advanced UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDM. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are documented in documents from an organization called the "Third Generation Partnership Project" (3GPP®). CDMA2000 and UMB are documented in documents from an organization called the "Third Generation Partnership Project II" (3GPP2). The techniques described herein may be used in the systems and radio technologies described herein, as well as in other systems and radio technologies. While examples of LTE, LTE-A, LTE-A Pro, or NR systems may be given, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used extensively in the descriptions, the techniques described herein are applicable to applications other than LTE, LTE-A, LTE-A Pro, or NR.

[0230] Macrocells generally cover relatively large geographical areas (e.g., a radius of several kilometers) and can enable unrestricted access by UEs (User Entities) subscribed to a network provider's service. Small cells may be associated with lower-power base stations compared to macrocells and may operate in the same or different frequency bands as macrocells (e.g., licensed, unlicensed, etc.). Small cells may include picocells, femtocells, and microcells, depending on the various examples. Picocells may cover small geographical areas, for example, and can enable unrestricted access by UEs subscribed to a network provider's service. Femtocells may also cover small geographical areas (e.g., a home) and may provide limited access by UEs associated with femtocells (e.g., UEs in a limited subscriber group (CSG), UEs for users in a home, etc.). eNBs for macrocells are sometimes called macro eNBs. eNBs for small cells are sometimes called small cell eNBs, pico eNBs, femto eNBs, or home eNBs. eNBs may support one or more cells (for example, two, three, or four) and may also support communications using one or more component carriers.

[0231] The wireless communication systems described herein may support synchronous or asynchronous operation. In synchronous operation, base stations may have similar frame timings, and transmissions from different base stations may be approximately synchronized in time. In asynchronous operation, base stations may have different frame timings, and transmissions from different base stations may not be synchronized in time. The techniques described herein can be used in either synchronous or asynchronous operation.

[0232] The information and signals described herein can be represented using a wide variety of technologies and techniques. For example, the data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout this description can be represented by voltage, electric current, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any combination thereof.

[0233] The various exemplary blocks and modules described in relation to the disclosure herein may be implemented or run using general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, individual gate or transistor logic, individual hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but alternatively, a processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working with a DSP core, or any other such configuration).

[0234] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of this disclosure and the accompanying claims. For example, due to the nature of the software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features implementing the functions may also be physically located in various locations, including the distribution of parts of the function so that they are implemented in different physical locations.

[0235] Computer-readable media include both non-temporary computer storage media and communication media, including any media that enables the transfer of computer programs from one location to another. Non-temporary storage media can be any available media that can be accessed by a general-purpose or dedicated computer. Examples, but not limited to, non-temporary computer-readable media may include random-access memory (RAM), read-only memory (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-temporary media that can be used to carry or store desired program code means in the form of instructions or data structures, and that can be accessed by a general-purpose or dedicated computer or a general-purpose or dedicated processor. Any connection is also appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of media. As used herein, disk and disc include CD, LaserDisc®, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray® disc, where disk typically reproduces data magnetically and disc optically reproduces data by laser. Combinations of the above are also included in the scope of computer-readable media.

[0236] In the lists of items used herein, including within the claims (for example, lists of items ending with phrases such as "at least one of" or "one or more of"), "or" indicates an inclusive list, such as a list of at least one of A, B, or C meaning A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, the phrase "based on" as used herein shall not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, the phrase "based on" as used herein should be construed similarly to the phrase "at least partially based on."

[0237] In the attached diagram, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes similar components. Where only the 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 any other subsequent reference labels.

[0238] The descriptions provided herein with respect to the accompanying drawings describe exemplary configurations and do not necessarily represent all examples that may be implemented or fall within the scope of the claims. The term “exemplary” as used herein means “acting as an example, case, or illustration,” and does not mean “preferred” or “advantageous over other examples.” The modes for carrying out the invention include specific details to give rise to an understanding of the techniques described. However, these techniques may be practiced without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the examples described.

[0239] The descriptions herein are provided to enable those skilled in the art to create or use this disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of this disclosure. Accordingly, this disclosure should be given the broadest scope that is consistent with the principles and novel features disclosed herein, and is not limited to the examples and designs described herein. [Explanation of symbols]

[0240] 100, 200 Wireless Communication Systems 105, 205 base station 110 Geographic Coverage Areas 115, 210 UE 125 Communication Link 130 Core Network 132, 134 Backhaul Link 215 SSB, QCL SSB 215-a First SSB, SSB 215-b Second SSB, SSB 215-c The third SSB, SSB 215-d The 4th SSB, SSB 215-e The 5th SSB, SSB 300, 400, 400-a, 400-b SSB configuration 305, 405 SSB 310 DRS window 310-a First DRS window, DRS window 310-b Second DRS window, DRS window 310-c Third DRS window, DRS window 410 SSB per bitmap SSB repetitions shown by a 415 bitmap 705, 805, 1005, 1105, 1205, 1405 devices 710, 810, 1110, 1210 receivers 715, 815, 905, 1010, 1115, 1215, 1305, 1410 Communications Manager 720, 850, 1120, 1250 Transmitters 820, 910, 1220, 1310 QCL SSB Manager 825, 915, 1225, 1315 PDCCH Location Manager 830, 920, 1230, 1320 RMSI Manager 835, 925, 1235, 1325 Connection Manager 840, 940, 1240, 1335 SSB Parameter Manager 845, 945, 1245, 1340 Rate Matching Manager 930, 1330 PBCH Manager 935 SSB Index Manager 950, 1345 SSB Pattern Manager 955, 1350 PDSCH Location Manager 1000, 1400 System 1015 I / O Controller 1020, 1420 transceivers 1025, 1425 antenna 1030, 1430 memory 1035 Computer-readable, computer-executable code, code 1040, 1440 processors Buses 10:45, 14:50 1415 Network Communications Manager 1435 Computer-readable code, code 1445 Inter-station communications manager

Claims

1. A device for wireless communication in user equipment (UE), At least one processor, The system comprises memory coupled to at least one of the processors, The aforementioned memory, Receiving a synchronous signal block from a network device among a set of pseudo-collated synchronous signal blocks, wherein the synchronous signal block includes parameter indications showing information associated with a plurality of downlink control channel locations corresponding to the set of pseudo-collated synchronous signal blocks. Receiving a downlink permission for system information based on monitoring one or more downlink control channel locations among a plurality of downlink control channel locations corresponding to the set of pseudo-collocated synchronous signal blocks, wherein the plurality of downlink control channel locations are based on the parameters and the index of the received synchronous signal block, Based on the aforementioned downlink permission, the system information is received, Based on the synchronization signal block and the system information, establish a connection with the network device. A device for storing instructions that can be executed by the at least one processor so that the UE performs the action.

2. The apparatus according to claim 1, wherein the parameter includes an instruction for an offset between consecutive synchronous signal blocks in the set of pseudo-collated synchronous signal blocks.

3. An instruction executable by at least one processor to cause the aforementioned synchronization signal block to be received, The apparatus according to claim 1, comprising instructions executable by the at least one processor to cause the UE to receive the physical broadcast channel portion of the synchronization signal block, wherein the physical broadcast channel portion of the synchronization signal block comprises the instructions for the parameters.

4. Instructions executable by at least one processor to cause the physical broadcast channel portion of the synchronization signal block to be received are: The apparatus according to claim 3, comprising instructions executable by the at least one processor to cause the UE to perform soft synthesis across a plurality of synchronization signal blocks.

5. The apparatus according to claim 4, wherein the instruction for the parameter is common across each of the plurality of synchronization signal blocks.

6. The apparatus according to claim 5, wherein the plurality of synchronization signal blocks comprises at least one of the set of pseudo-collated synchronization signal blocks, a plurality of different sets of pseudo-collated synchronization signal blocks, or a combination thereof, each of which synchronization signal blocks is associated with the network device.

7. The apparatus according to claim 1, further comprising instructions executable by at least one processor to cause the UE to determine the plurality of downlink control channel locations based on the frame in which the synchronization signal block is received and the parameters indicated in the synchronization signal block.

8. An instruction executable by at least one processor to cause the downlink permission to be received is: The apparatus according to claim 1, comprising instructions executable by at least one processor to cause the UE to monitor each of the plurality of downlink control channel locations.

9. An instruction executable by the at least one processor that receives the downlink permission is: It is determined that no downlink control information was detected among the first instances of the aforementioned plurality of downlink control channel locations. Based on the aforementioned parameters, in order to detect the downlink permission, a second instance of the plurality of downlink control channel locations is monitored. The apparatus according to claim 1, comprising instructions executable by the at least one processor to cause the UE to perform the following.

10. The apparatus according to claim 1, wherein one of the plurality of downlink control channel locations comprises a Type 0 physical downlink control channel common search space.

11. The instructions further include instructions executable by the at least one processor to cause the UE to determine the index of each synchronization signal block in the set of pseudo-collated synchronization signal blocks, The apparatus according to claim 1, wherein the plurality of downlink control channel locations are based on the index of each synchronous signal block in the set of pseudo-collated synchronous signal blocks.

12. A method for wireless communication in user equipment (UE), A step of receiving a synchronous signal block from a network device, wherein the synchronous signal block includes parameter indications that show information associated with a plurality of downlink control channel locations corresponding to the set of pseudo-collated synchronous signal blocks. A step of receiving a downlink permission for system information, based on monitoring one or more downlink control channel locations among a plurality of downlink control channel locations corresponding to the set of pseudo-collocated synchronous signal blocks, wherein the plurality of downlink control channel locations are based on the parameters and the index of the received synchronous signal block, The steps include receiving the system information based on the downlink permission, A step of establishing a connection with the network device based on the synchronization signal block and the system information. A method that includes this.

13. The method according to claim 12, wherein the parameter includes an indication of an offset between consecutive synchronous signal blocks in the set of pseudo-collated synchronous signal blocks.

14. The step of receiving the aforementioned synchronization signal block is, A step of receiving the physical broadcast channel portion of the synchronization signal block, wherein the physical broadcast channel portion of the synchronization signal block comprises the instruction of the parameter. The method according to claim 12, including the method described in claim 12.

15. The step of receiving the physical broadcast channel portion of the synchronization signal block is: Steps to perform soft synthesis across multiple synchronization signal blocks. The method according to claim 14, including the method described in claim 14.

16. The method according to claim 15, wherein the instruction for the parameter is common across each of the plurality of synchronization signal blocks.

17. The method according to claim 16, wherein the plurality of synchronization signal blocks comprises at least one of the set of pseudo-collated synchronization signal blocks, a plurality of different sets of pseudo-collated synchronization signal blocks, or a combination thereof, each of which synchronization signal blocks is associated with the network device.

18. The step of determining the plurality of downlink control channel locations based on the frame in which the synchronization signal block is received and the parameters indicated in the synchronization signal block. The method according to claim 12, further comprising:

19. The step of receiving the downlink permission is, The step of monitoring each of the multiple downlink control channel locations mentioned above. The method according to claim 12, including the method described in claim 12.

20. The step of receiving the downlink permission is, The steps include determining that no downlink control information was detected among the first instances of the plurality of downlink control channel locations, Based on the aforementioned parameters, the steps include monitoring a second instance of the plurality of downlink control channel locations to detect the downlink permission, and The method according to claim 12, including the method described in claim 12.

21. The method according to claim 12, wherein one of the plurality of downlink control channel locations comprises a Type 0 physical downlink control channel common search space.

22. The process further includes the step of determining the index of each synchronization signal block in the set of pseudo-collated synchronization signal blocks, The method according to claim 12, wherein the plurality of downlink control channel locations are based on the index of each synchronous signal block in the set of pseudo-collated synchronous signal blocks.

23. An apparatus for wireless communication in a user device (UE), having means for performing the method described in any one of claims 12 to 22.

24. A computer-readable storage medium comprising instructions configured to cause a user device (UE) to perform the method according to any one of claims 12 to 22.

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