Systems and methods for parameter estimation - Patents.com
Patent Information
- Application Number
- JP2023509500
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2020-10-23
- Publication Date
- 2025-03-27
- Estimated Expiration
- 2040-10-23
Smart Images

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Abstract
Description
[Technical field]
[0001] FIELD OF THE DISCLOSURE The present disclosure relates generally to wireless communications, including, but not limited to, systems and methods for parameter estimation. [Background technology]
[0002] The standardization body, the 3rd Generation Partnership Project (3GPP®), is currently in the process of defining a new air interface called 5G New Radio (5G NR) and Next Generation Packet Core Network (NG-CN or NGC). 5G NR will have three main components: 5G Access Network (5G-AN), 5G Core Network (5GC), and User Equipment (UE). To facilitate the availability of different data services and requirements, the elements of 5GC, also called network functions, have been simplified so that they can be adapted according to the needs, some of them being software-based and some of them being hardware-based. Summary of the Invention [Means for solving the problem]
[0003] Exemplary embodiments disclosed herein are directed to solving problems associated with one or more of the problems presented in the prior art, and providing additional features that will be readily apparent by reference to the following detailed description when considered in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it will be understood that these embodiments are presented by way of example, and not by way of limitation, and various modifications to the disclosed embodiments may be made while remaining within the scope of the present disclosure, as will be apparent to those skilled in the art upon perusal of this disclosure.
[0004] At least one aspect is directed to a system, method, apparatus, or computer-readable medium, in which a wireless communication device may determine a first number of PDCCH transmissions scheduled from a wireless communication node to be K, the first number of PDCCH transmissions being associated with and being PDCCH candidates for blind detection decoding, where K is an integer greater than 1. The wireless communication device may determine a second number of PDCCH candidates to be counted for monitoring. The wireless communication device may count the second number of PDCCH candidates for monitoring for the first number of PDCCH transmissions.
[0005] In some embodiments, the second number may be 1. In some embodiments, the wireless communication device may perform a single blind detection decoding on the first number of PDCCH transmissions. In some embodiments, the wireless communication device may perform a single blind detection decoding by combining data received from the first number of PDCCH transmissions. In some embodiments, the wireless communication device may perform a single blind detection decoding by performing blind detection decoding on the combined received data. In some embodiments, the second number may be K. In some embodiments, the wireless communication device may perform each of K blind detection decodings on the received data of a respective one of the first number of PDCCH transmissions.
[0006] In some embodiments, the second number may be (K+1). In some embodiments, the wireless communication device may perform (K+1) blind detection decodings on the first number of PDCCH transmissions. In some embodiments, the wireless communication device may perform (K+1) blind detection decodings by performing each of K blind detection decodings on received data of a respective one of the first number of PDCCH transmissions. In some embodiments, the wireless communication device may perform (K+1) blind detection decodings by combining data received from the first number of PDCCH transmissions. In some embodiments, the wireless communication device may perform (K+1) blind detection decodings by performing one blind detection decoding on the combined received data. In some embodiments, the wireless communication device may perform channel estimation separately for each of the first number of PDCCH transmissions.
[0007] In some embodiments, the wireless communication device may transmit to the wireless communication node a capability of the wireless communication device to support a third number of PDCCH candidates to be counted for monitoring in association with the first number of PDCCH transmissions. In some embodiments, the third number may be an integer from 1 to (K+1). In some embodiments, the third number may represent a number of PDCCH candidates to be counted for monitoring for the K associated PDCCH candidates for blind detection decoding. In some embodiments, the wireless communication device may receive an indication of the second number from the wireless communication node. In some embodiments, the wireless communication device may receive the indication from the wireless communication node using radio resource control (RRC) signaling.
[0008] In some embodiments, the wireless communication device may determine an overbooking scenario. In some embodiments, the overbooking scenario may comprise at least one of: a first number of non-overlapping PDCCH candidate transmissions in a search space (SS) set exceeding a predefined maximum number X of PDCCH candidate transmissions for blind detection decoding, or a number of non-overlapping channel control elements (CCEs) in the SS set exceeding a predefined maximum number Y of non-overlapping CCEs. In some embodiments, the wireless communication device may determine, in response to the overbooking scenario, to skip blind detection decoding for each associated PDCCH candidate transmission received after X or Y is met. In some embodiments, the wireless communication device may determine, in response to the overbooking scenario, to skip blind detection decoding for each associated PDCCH candidate transmission having an index higher than an index of the PDCCH candidate transmission received when X or Y is met.
[0009] In some embodiments, the wireless communication device may determine, based on a CCE index of a first PDCCH candidate transmission, one or more channel control element (CCE) indices of one or more subsequent associated PDCCH candidate transmissions.
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[0010] In some embodiments, the wireless communication device may receive a first transmission configuration indicator (TCI) state and a second TCI state. In some embodiments, the first TCI state may be indicated in downlink control information (DCI). In some embodiments, the second TCI state may be indicated or activated using radio resource control (RRC) signaling or medium access control control element (MAC-CE) signaling. In some embodiments, the wireless communication device transmits the first TCI state and the second TCI state to the wireless communication node, and the first TCI state is the same as the second TCI state. In some embodiments, the wireless communication device may use a default beam indication from medium access control control element (MAC CE) signaling. In some embodiments, the wireless communication device may use a default beam indication from MAC CE signaling when the wireless communication device receives multiple PDCCH transmissions to indicate a physical downlink shared channel (PDSCH) transmission. In some embodiments, the wireless communication device may use a default beam indication from the MAC CE signaling if an offset between at least one of the multiple PDCCH transmissions and the scheduled PDSCH transmission is greater than or equal to a threshold and an offset between at least another of the multiple PDCCH transmissions and the scheduled PDSCH transmission is less than a threshold.
[0011] At least one aspect is directed to a system, method, apparatus, or computer-readable medium. A wireless communication node may schedule a first number of physical downlink control channel (PDCCH) transmissions, the first number of PDCCHs being associated with and being PDCCH candidates for blind detection decoding by a wireless communication device. The wireless communication device may determine that the first number of PDCCH transmissions is K, an integer greater than 1. The wireless communication device may determine a second number of PDCCH candidates to be counted for monitoring. The wireless communication device may count the second number of PDCCH candidates for monitoring for the first number of PDCCH transmissions.
[0012] In some embodiments, the second number may be 1. In some embodiments, the wireless communication device may be caused to perform a single blind detection decoding on the first number of PDCCH transmissions. In some embodiments, the wireless communication device may be caused to perform a single blind detection decoding by combining data received from the first number of PDCCH transmissions. In some embodiments, the wireless communication device may be caused to perform a single blind detection decoding by performing blind detection decoding on the combined received data. In some embodiments, the second number may be K. In some embodiments, the wireless communication device may be caused to perform each of K blind detection decodings on the received data of a respective one of the first number of PDCCH transmissions.
[0013] In some embodiments, the second number may be (K+1). In some embodiments, the wireless communication device may be caused to perform (K+1) blind detection decodings on the first number of PDCCH transmissions. In some embodiments, the wireless communication device may be caused to perform (K+1) blind detection decodings by performing each of K blind detection decodings on received data of a respective one of the first number of PDCCH transmissions. In some embodiments, the wireless communication device may be caused to perform (K+1) blind detection decodings by combining data received from the first number of PDCCH transmissions. In some embodiments, the wireless communication device may be caused to perform (K+1) blind detection decodings by performing one blind detection decoding on the combined received data. In some embodiments, the wireless communication node may perform channel estimation separately for each of the first number of PDCCH transmissions.
[0014] In some embodiments, the wireless communication node may receive from the wireless communication node a capability of the wireless communication device to support a third number of PDCCH candidates to be counted for monitoring in association with the first number of PDCCH transmissions. In some embodiments, the third number may be an integer from 1 to (K+1). In some embodiments, the third number may represent a number of PDCCH candidates to be counted for monitoring with respect to the K associated PDCCH candidates for blind detection decoding. In some embodiments, the wireless communication node may transmit an indication of the second number to the wireless communication device. In some embodiments, the wireless communication node may transmit the indication to the wireless communication device using radio resource control (RRC) signaling.
[0015] In some embodiments, the wireless communication device may be caused to determine an overbooking scenario. In some embodiments, the overbooking scenario may comprise at least one of a first number of non-overlapping PDCCH candidate transmissions in a search space (SS) set exceeding a predefined maximum number X of PDCCH candidate transmissions for blind detection decoding or a number of non-overlapping channel control elements (CCEs) in the SS set exceeding a predefined maximum number Y of non-overlapping CCEs. In some embodiments, the wireless communication device may be caused to determine, in response to the overbooking scenario, to skip blind detection decoding for each associated PDCCH candidate transmission received after X or Y is met. In some embodiments, the wireless communication device may be caused to determine, in response to the overbooking scenario, to skip blind detection decoding for each associated PDCCH candidate transmission having an index higher than an index of a PDCCH candidate transmission received when X or Y is met.
[0016] In some embodiments, the wireless communication device may be caused to determine, based on a CCE index of a first PDCCH candidate transmission, one or more channel control element (CCE) indices of one or more subsequent associated PDCCH candidate transmissions.
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[0017] In some embodiments, the wireless communication device may be caused to receive a first transmission configuration indicator (TCI) state and a second TCI state. In some embodiments, the first TCI state may be indicated in downlink control information (DCI). In some embodiments, the second TCI state may be indicated or activated using radio resource control (RRC) signaling or medium access control control element (MAC-CE) signaling. In some embodiments, the wireless communication node may receive the first TCI state and the second TCI state from the wireless communication device, the first TCI state being the same as the second TCI state. In some embodiments, the wireless communication device may be caused to use a default beam indication from medium access control control element (MAC CE) signaling. In some embodiments, the wireless communication device may be caused to use a default beam indication from MAC CE signaling when the wireless communication device receives multiple PDCCH transmissions to indicate a physical downlink shared channel (PDSCH) transmission. In some embodiments, the wireless communication device may be caused to use a default beam indication from MAC CE signaling if the offset between at least one of the multiple PDCCH transmissions and the scheduled PDSCH transmission is equal to or greater than a threshold and the offset between at least another of the multiple PDCCH transmissions and the scheduled PDSCH transmission is less than the threshold.
[0018] In some embodiments, K (or other number / value) PDCCH candidate transmissions may be associated / associated / linked, e.g., to indicate / schedule / trigger an uplink or downlink transmission. If the K PDCCH candidate transmissions are associated, the wireless communication device may count / determine the number of monitored PDCCH candidate transmissions for the K PDCCH candidate transmissions. The wireless communication device may count the number of monitored PDCCH candidate transmissions as 1, K, K+1, or other values. In some embodiments, the wireless communication device may report / specify / transmit / provide the capabilities of the wireless communication device. The capabilities may correspond to an ability to support the number of PDCCH candidates to be counted for monitoring (e.g., for the K associated PDCCH candidates).
[0019] In some embodiments, the wireless communication device may not be able to monitor one or more associated higher indexed overbooking PDCCH candidates. In some embodiments, the wireless communication device may not be able to monitor one or more associated overbooking PDCCH candidates. The associated overbooking PDCCH candidates may be received / acquired later in time. In some embodiments, a later received PDCCH candidate on a later associated monitoring occasion (MO) may be selected as the first received PDCCH candidate on the first associated MO.
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[0020] In some embodiments, the wireless communication device may receive / acquire one or more PDCCH repetitive / candidate transmissions, for example, to indicate a PDSCH transmission. If the wireless communication device receives a PDCCH repetitive transmission, the wireless communication node may receive / acquire one or more beam indications of the DCI that are the same as the default beam indication. If the wireless communication device receives a PDCCH repetitive transmission and the first offset is equal to or greater than a threshold and / or the second offset is less than a threshold, the wireless communication device may use the default beam and receive / acquire the PDSCH. The first offset may correspond to an offset between at least one of the multiple PDCCH transmissions and the scheduled PDSCH transmission. The second offset may correspond to an offset between at least another of the multiple PDCCH transmissions and the scheduled PDSCH transmission. The thresholds may include or correspond to a threshold indicated by timeDurationForQCL and / or other thresholds. The present invention provides, for example, the following: (Item 1) 1. A method, comprising: determining, by the wireless communication device, a first number of physical downlink control channel (PDCCH) transmissions scheduled from the wireless communication node to be K, the first number of PDCCH transmissions being associated with and being PDCCH candidates for blind detection decoding, where K is an integer greater than one; determining a second number of PDCCH candidates to be counted for monitoring by the wireless communication device; counting, by the wireless communication device, a second number of the PDCCH candidates for monitoring for the first number of PDCCH transmissions; A method comprising: (Item 2) The second number is one, and the method includes performing, by the wireless communication device, a single blind detection decoding on the first number of PDCCH transmissions, the performing comprising: combining data received from the first number of PDCCH transmissions; performing blind detection decoding on the combined received data; and The method according to item 1. (Item 3) Item 2. The method of item 1, wherein the second number is K, and the method includes performing, by the wireless communication device, each of K blind detection decodings on received data of each of the first number of PDCCH transmissions. (Item 4) The second number is (K+1), and the method includes performing, by the wireless communication device, (K+1) blind detection decoding on the first number of PDCCH transmissions, the performing comprising: performing K blind detection decodings on received data of each of the first number of PDCCH transmissions; combining data received from the first number of PDCCH transmissions; performing a single blind detection decoding on the combined received data; The method according to item 1. (Item 5) 5. The method of claim 2, 3, or 4, comprising performing channel estimation separately for each of the first number of PDCCH transmissions. (Item 6) 2. The method of claim 1, comprising transmitting, by the wireless communication device, to the wireless communication node, a capability of the wireless communication device to support a third number of PDCCH candidates to be counted for monitoring in association with the first number of PDCCH transmissions. (Item 7) The method according to item 6, wherein the third number is an integer from 1 to (K+1), and the third number represents the number of PDCCH candidates to be counted for monitoring the K associated PDCCH candidates for blind detection decoding. (Item 8) 7. The method of claim 1 or 6, comprising receiving, by the wireless communication device, an indication of the second number from the wireless communication node. (Item 9) 9. The method of claim 8, comprising receiving the indication by the wireless communication device from the wireless communication node using radio resource control (RRC) signaling. (Item 10) determining, by the wireless communication device, an overbooking scenario, the overbooking scenario comprising at least one of: the first number of non-overlapping PDCCH candidate transmissions in a search space (SS) set exceeds a predefined maximum number X of PDCCH candidate transmissions for blind detection decoding; or the number of non-overlapping channel control elements (CCEs) in the SS set exceeds a predefined maximum number Y of non-overlapping CCEs; determining, by the wireless communication device, in response to the overbooking scenario, to skip blind detection decoding for each associated PDCCH candidate transmission received after X or Y is met, or to skip blind detection decoding for each associated PDCCH candidate transmission having an index higher than an index of a PDCCH candidate transmission received when X or Y is met; The method according to item 1, comprising: (Item 11) 2. The method of claim 1, comprising: determining, by the wireless communication device, one or more CCE indices of one or more subsequent associated PDCCH candidate transmissions based on a channel control element (CCE) index of a first PDCCH candidate transmission. (Item 12) The wireless communication device
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[0021] Various exemplary embodiments of the present solution are described in detail below with reference to the following figures or drawings. The drawings are provided for illustrative purposes only and merely depict exemplary embodiments of the present solution to facilitate the reader's understanding of the present solution. Thus, the drawings should not be considered as limiting the scope, scope, or applicability of the present solution. Please note that for clarity and ease of illustration, the drawings are not necessarily drawn to scale.
[0022] [Figure 1] FIG. 1 illustrates an example cellular communication network in which the techniques disclosed herein may be implemented in accordance with certain embodiments of the present disclosure. [Diagram 2] FIG. 2 illustrates a block diagram of an example base station and user equipment device in accordance with some embodiments of the disclosure. [Diagram 3] FIG. 3 illustrates a flow diagram of an example method for parameter estimation according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0023] Various exemplary embodiments of the solution are described below with reference to the accompanying figures to enable those skilled in the art to make and use the solution. As will be apparent to those skilled in the art, after perusing this disclosure, various changes or modifications of the examples described herein can be made without departing from the scope of the solution. Thus, the solution is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order or hierarchy of steps in the methods disclosed herein is merely an example approach. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the solution. Thus, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and that the solution is not limited to the specific order or hierarchy presented, unless expressly stated otherwise. (1. Mobile Communication Technology and Environment)
[0024] FIG. 1 illustrates an example wireless communication network and / or system 100 in which techniques disclosed herein according to embodiments of the present disclosure may be implemented. In the following discussion, the wireless communication network 100 may be any wireless network, such as a cellular network or a narrowband Internet of Things (NE-IoT) network, and is referred to herein as "network 100." Such an example network 100 includes a base station 102 (hereinafter also referred to as "BS 102," wireless communication node), user equipment devices 104 (hereinafter also referred to as "UE 104," wireless communication device), which may communicate with each other using communication links 110 (e.g., wireless communication channels), and a cluster of cells 126, 130, 132, 134, 136, 138, and 140 overlaying a geographic area 101. In FIG. 1, the BS 102 and the UE 104 are included within the respective geographic boundaries of the cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating within its allocated bandwidth and providing adequate wireless coverage to its intended users.
[0025] For example, the BS 102 may operate with an allocated channel transmission bandwidth to provide sufficient coverage to the UE 104. The BS 102 and the UE 104 may communicate using a downlink radio frame 118 and an uplink radio frame 124, respectively. Each radio frame 118 / 124 may be further divided into subframes 120 / 127, which may include data symbols 122 / 128. In this disclosure, the BS 102 and the UE 104 are generally described herein as non-limiting examples of "communication nodes" that may practice the methods disclosed herein. Such communication nodes may be capable of wireless and / or wired communication according to various embodiments of the present solution.
[0026] 2 illustrates a block diagram of an exemplary wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) in accordance with some embodiments of the present solution. System 200 may include components and elements configured to support known or conventional operational features that need not be described in detail herein. In one illustrative embodiment, system 200 may be used to communicate (e.g., transmit and receive) data symbols in a wireless communication environment, such as wireless communication environment 100 of FIG. 1, as described above.
[0027] The system 200 generally includes a base station 202 (hereinafter "BS 202") and a user equipment device 204 (hereinafter "UE 204"). The BS 202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each of which is coupled and interconnected with each other, as needed, using a data communication bus 220. The UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each of which is coupled and interconnected with each other, as needed, using a data communication bus 240. The BS 202 communicates with the UE 204 using a communication channel 250, which may be any wireless channel or other medium suitable for the transmission of data as described herein.
[0028] As would be understood by a person skilled in the art, the system 200 may further include any number of modules other than those shown in FIG. 2. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the embodiments disclosed herein may be implemented in hardware, computer readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps are generally described in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software may depend on the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a manner suitable for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.
[0029] According to some embodiments, the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210, which includes an RF transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in a time-duplex manner. The operation of the two transceiver modules 210 and 230 may be coordinated in time such that the downlink transmitter is coupled to the downlink antenna 212 at the same time that the uplink receiver circuit is coupled to the uplink antenna 232 for reception of transmissions over the wireless transmission link 250. Conversely, the operation of the two transceivers 210 and 230 may be coordinated in time such that the uplink transmitter is coupled to the uplink antenna 232 at the same time that the downlink receiver is coupled to the downlink antenna 212 for reception of transmissions over the wireless transmission link 250. In some embodiments, there is close time synchronization, with minimal guard time between changes in duplex direction.
[0030] The UE transceiver 230 and base station transceiver 210 are configured to communicate using a wireless data communication link 250 and cooperate with suitably configured RF antenna arrangements 212 / 232 that may support a particular wireless communication protocol and modulation scheme. In some demonstrative embodiments, the UE transceiver 210 and base station transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and the emerging 5G standard. However, it should be understood that the present disclosure is not necessarily limited in application to a particular standard and associated protocol. Rather, the UE transceiver 230 and base station transceiver 210 may be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.
[0031] According to various embodiments, the BS 202 may be, for example, an evolved Node B (eNB), a serving eNB, a target eNB, a femto station, or a pico station. In some embodiments, the UE 204 may be embodied in various types of user devices, such as a mobile phone, a smartphone, a personal digital assistant (PDA), a tablet, a laptop computer, a wearable computing device, etc. The processor modules 214 and 236 may be implemented or realized with a general purpose processor, a content addressable memory, a digital signal processor, an application specific integrated circuit, a field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. Thus, the processor may be realized as a microprocessor, a controller, a microcontroller, a state machine, etc. The processor may also be implemented as a combination of computing devices (e.g., a combination of a digital signal processor and a microprocessor), multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.
[0032] Furthermore, the steps of the methods or algorithms described in connection with the embodiments disclosed herein may be embodied directly in hardware, firmware, software modules executed by the processor modules 214 and 236, respectively, or any practical combination thereof. The memory modules 216 and 234 may be realized as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this regard, the memory modules 216 and 234 may be coupled to the processor modules 210 and 230, respectively, such that the processor modules 210 and 230 may read information from and write information to the memory modules 216 and 234, respectively. The memory modules 216 and 234 may be integrated within their respective processor modules 210 and 230. In some embodiments, each of the memory modules 216 and 234 may include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be executed by the processor modules 210 and 230, respectively. Each of the memory modules 216 and 234 may also include non-volatile memory for storing instructions for execution by the processor modules 210 and 230, respectively.
[0033] The network communications module 218 generally represents hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bidirectional communications between the base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, the network communications module 218 may be configured to support Internet or WiMAX traffic. In a typical deployment, without limitation, the network communications module 218 provides an 802.3 Ethernet interface so that the base station transceiver 210 may communicate with conventional Ethernet-based computer networks. As such, the network communications module 218 may include a physical interface for connection to a computer network (e.g., a Mobile Switching Center (MSC)). The terms “configured for,” “configured to,” and conjugations thereof, for a specified operation or function, as used herein, refer to devices, components, circuits, structures, machines, signals, etc. that are physically constructed, programmed, formatted, and / or arranged to perform the specified operation or function.
[0034] The Open Systems Interconnection (OSI) model (referred to herein as the "Open Systems Interconnection Model") is a conceptual and logical layout that defines the network communications used by open systems (e.g., wireless communication devices, wireless communication nodes) to interconnect and communicate with other systems. The model is divided into seven subcomponents or layers, each of which represents a conceptual collection of services provided to the layers above and below it. The OSI model also defines logical networks, and effectively describes computer packet transfers by using different layer protocols. The OSI model may also be referred to as the seven-layer OSI model or seven-layer model. In some embodiments, the first layer may be the physical layer. In some embodiments, the second layer may be the medium access control (MAC) layer. In some embodiments, the third layer may be the radio link control (RLC) layer. In some embodiments, the fourth layer may be the packet data convergence protocol (PDCP) layer. In some embodiments, the fifth layer may be the radio resource control (RRC) layer. In some embodiments, the sixth layer is a non-access stratum (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer may be another layer. 2. Systems and Methods for Parameter Estimation
[0035] A system (e.g., a wireless communication system and / or other system) may include / use / enable / implement one or more procedures for joint / joint transmission and / or reception of multiple transmission and reception points (multi-TRP). In some embodiments, using multi-TRP may increase / improve the throughput of wireless communication. Thus, a system (e.g., Long Term Evolution-Advanced (LTE-A), New Radio Access Technology (NR), and / or other systems) may support multi-TRP transmission (e.g., to increase the throughput of wireless communication). Repetitive transmission of a multi-TRP system may efficiently increase / improve the reliability / robustness of Ultra-Reliable Low Latency Communication (URLLC) and / or other processes. In some embodiments, a system with a multi-TRP configuration may implement / enable / perform one or more repetitive transmissions of a physical downlink control channel (PDCCH). However, implementing / performing one or more repetitive transmissions of a PDCCH (or other channels) may introduce one or more associated challenges / problems that require one or more solutions. For example, a wireless communication device (e.g., a UE, a terminal, and / or a served node) may need to determine one or more priority rules regarding the number / amount of PDCCH blind detections and / or overbooking. In some embodiments, the wireless communication device may need to determine / implement one or more rules for determining at least one default beam for a physical downlink shared channel (PDSCH) transmission. A. EMBODIMENT 1
[0036] In some embodiments, a first number of PDCCH transmissions may be associated. The wireless communication device may determine that the first number of PDCCH transmissions corresponds to K, where K is an integer (or other value) greater than 1. A wireless communication node (e.g., a ground terminal, a base station, a gNB, an eNB, or a serving node) may schedule the first number of PDCCH transmissions. In some embodiments, the first number of associated PDCCH transmissions may be candidates (e.g., candidates for monitoring) for blind detection decoding. The wireless communication device may determine / calculate / calculate a total number of monitored PDCCH candidate transmissions for the first number of PDCCH candidates / potential transmissions. The wireless communication device may determine that a total number of monitored PDCCH candidates for blind detection decoding (e.g., for the first number of PDCCH candidates / potential transmissions) includes or corresponds to 1 (or other value). Thus, the wireless communication device may perform / perform a single (or one-time) blind detection decoding for the first number of PDCCH transmissions (eg, K associated PDCCH candidates for blind detection decoding).
[0037] The wireless communication device may receive / obtain one or more associated / associated downlink control information (DCI) with the associated PDCCH candidate transmissions. In response to receiving the DCI, the wireless communication device may combine / sum / aggregate the received data from the first number of PDCCH transmissions. Specifically, the first number of associated PDCCH candidates may be used separately / individually to perform channel estimation for each of the first number of associated PDCCH transmissions. In response to or independent of performing channel estimation, the wireless communication device may combine / integrate / incorporate / sum the received data and / or perform blind detection decoding once (e.g., on the combined received data). (B. Embodiment 2)
[0038] In some embodiments, a first number of associated PDCCH transmissions may be candidates for blind detection decoding. The wireless communication device may determine that the first number of associated PDCCH candidates corresponds to K (e.g., K may have a value greater than 1). Thus, the K PDCCH candidate transmissions may be associated (e.g., the K PDCCH candidate transmissions may trigger / cause the same uplink / downlink transmission and / or the DCI of the K PDCCH candidate transmissions may have the same payload). The wireless communication device may determine / calculate / calculate a total number of monitored PDCCH candidate transmissions for the first number of associated PDCCH candidate transmissions. The wireless communication device may determine that the total number of monitored PDCCH candidates for blind detection decoding (e.g., for the first number of associated PDCCH candidate transmissions) includes or corresponds to K (or other value). Thus, the wireless communication device may implement / perform K blind detection decoding for each of the received data. The received data may correspond / point to the received data of each PDCCH candidate transmission of the first number of associated PDCCH candidate transmissions. Specifically, the first number (e.g., K) of associated PDCCH candidates may be used separately / individually to perform / perform channel estimation for each of the first number of associated PDCCH transmissions. In response to or independent of performing channel estimation, the wireless communication device may perform K (or other values) blind detection decodings for each of the received data of the respective / corresponding PDCCH candidate transmissions. (C. Embodiment 3)
[0039] In some embodiments, a first number of associated PDCCH transmissions may be candidates for blind detection decoding. The wireless communication device may determine that the first number of associated PDCCH candidates corresponds to K. Thus, K PDCCH candidate transmissions may be associated / associated. The wireless communication device may determine / calculate / calculate a total number of blind detections for the first number of associated PDCCH candidate transmissions. The wireless communication device may determine that the total number of blind detections (e.g., for the first number of associated PDCCH candidate transmissions) includes or corresponds to (K+1) (or other value). Thus, the wireless communication device may implement / perform (K+1) blind detection decoding for the first number of associated PDCCH candidate transmissions.
[0040] The wireless communication device may receive / obtain DCI of the associated PDCCH candidate transmissions. In response to receiving the DCI, the wireless communication device may combine / sum / integrate / combine / aggregate received data (e.g., demodulated data) from the first number of associated PDCCH candidate transmissions. Specifically, the first number of associated PDCCH candidates may be used to perform / perform separate / individual channel estimation for each of the first number of associated PDCCH transmissions. In response to or independent of performing channel estimation, the wireless communication device may perform K (or other value) blind detection decodings on each of the received data. The received data may include or correspond to the received data (e.g., demodulated data) of the respective PDCCH candidate transmissions. In response to (or prior to or in parallel with) performing the K blind detection decodings, the wireless communication device may combine / sum the received data (e.g., received data of the first number of associated PDCCH candidate transmissions). When the wireless communication device combines the received data, the wireless communication device may perform an additional (one or at least one) blind detection decoding on the combined received data. Thus, the total count of blind detection decodings may be (K+1). (D. Embodiment 4)
[0041] In some embodiments, the wireless communication device may determine / calculate / count the number / amount of monitored PDCCH candidates for the first number of associated PDCCH candidate transmissions. The wireless communication device may determine / count the number / amount of monitored PDCCH candidates (e.g., for the first number of associated PDCCH candidates) according to a signaling / configuration of the wireless communication node. For example, the wireless communication node may configure / determine the second number indication (e.g., index M and / or other indication) using radio resource control (RRC) signaling and / or other type of signaling. The wireless communication device may receive / obtain the indication from the wireless communication node using RRC signaling (or other type of signaling). The indication may be an integer number equal to or greater than 1 (or other value) with a value from 1 to (K+1), where K may indicate the first number of associated PDCCH candidate transmissions. The wireless communication device may use the second number indication (e.g., index M) to count the number of monitored PDCCH candidates for the first number of associated PDCCH candidates. Thus, the wireless communication device may use the indication to perform a certain number / amount of blind detection decoding for a first number of associated PDCCH candidate transmissions. (E. Embodiment 5)
[0042] In some embodiments, the wireless communication device may report / transmit / indicate / provide / transmit / broadcast the capability of the wireless communication device to the wireless communication node. The wireless communication device may report / transmit / indicate the capability if / when the first number of associated PDCCH candidate transmissions are configured. The capability of the wireless communication device may refer to / correspond to an ability (e.g., of the wireless communication device) to support a third number (e.g., value N and / or other value) of PDCCH candidates to be counted for monitoring (e.g., number of blind detection decodings) in association / relating to the first number of PDCCH transmissions. In some embodiments, the wireless communication device may transmit / report the value of the third number to the wireless communication node. The third number may be an integer number equal to or greater than 1 (or other value) with a value from 1 to (K+1). The third number may represent / indicate / specify the number of PDCCH transmissions per slot (or other time instance) in a downlink bandwidth portion (BWP) for which the wireless communication device may perform blind detection decoding in the serving cell (e.g., with respect to the first number of associated PDCCH candidates). In some embodiments, the third number may represent / indicate / define a number of PDCCH candidates to be counted to monitor for the first number of associated PDCCH candidate transmissions for blind detection decoding. (F. Embodiment 6)
[0043] In some embodiments, the wireless communication device may determine a number of monitored PDCCH candidate transmissions for a first number of associated PDCCH candidate transmissions. The number of monitored PDCCH candidate transmissions may correspond to a number of PDCCH transmissions per slot in a downlink BWP for which the wireless communication device may perform blind detection decoding in a serving cell. In some embodiments, the wireless communication device may determine / identify an overbooking scenario. The overbooking scenario may consider a first number of non-overlapping PDCCH candidate transmissions (e.g., PDCCH candidates for monitoring) in a search space (SS) set. For example, the overbooking scenario may comprise a first number of non-overlapping PDCCH candidate transmissions (e.g., in an SS set) that exceed / surpass a predefined / predetermined maximum number X of PDCCH candidate transmissions for blind detection decoding (e.g., a maximum number of monitored PDCCH candidate transmissions). In some embodiments, the overbooking scenario may consider a number / amount of non-overlapping channel control elements (CCEs) in the SS set (e.g., a number of non-overlapping CCEs for monitoring in the SS set). For example, an overbooking scenario may comprise a number of non-overlapping CCEs that exceeds a predefined / predetermined maximum number Y of non-overlapping CCEs.
[0044] In response to an overbooking scenario, the wireless communication device may determine to skip / omit blind detection decoding for certain PDCCH candidates. The wireless communication device may determine to skip / omit blind detection decoding for each associated PDCCH candidate transmission received after X (e.g., a predefined maximum number of PDCCH candidate transmissions for blind detection decoding) and / or Y (e.g., a predefined maximum number of non-overlapping CCEs) are met (e.g., may not monitor each associated PDCCH candidate transmission). In some embodiments, the wireless communication device may determine to skip blind detection decoding for each associated PDCCH candidate transmission having an index higher / greater than an index of a certain PDCCH candidate transmission. A certain PDCCH candidate transmission may correspond to a PDCCH candidate transmission received when X and / or Y are just met (but not exceeded). (G. Embodiment 7)
[0045] In some embodiments, one or more monitoring occasions (MOs) in a search space (SS) set may be associated / associated / linked. When one or more MOs are associated, the wireless communication device may calculate / determine / calculate / configure one or more channel control element (CCE) indices of a first number of associated PDCCH candidate transmissions. In some embodiments, the wireless communication device may receive / obtain one or more subsequent / successor / subsequent associated PDCCH candidate transmissions in one or more associated / associated monitoring occasions (MOs). Thus, the wireless communication device may determine / calculate / configure one or more CCE indices of one or more subsequent associated PDCCH candidate transmissions. The wireless communication device may configure / determine one or more CCE indices of one or more subsequent associated PDCCH candidate transmissions using / based on the CCE index of the first PDCCH candidate transmission.
[0046] The wireless communication device
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[0047] Once the wireless communication device determines / calculates / configures / identifies the CCE index (e.g., using the equation), the wireless communication device may perform blind detection decoding (e.g., according to embodiments 1, 2, and / or 3) according to the determined / obtained CCE index and / or the fixed aggregation level L. In some embodiments, the wireless communication node may (e.g., with activation on RRC signaling and / or Medium Access Control-Control Element (MAC-CE) signaling)
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[0048] In some embodiments, the wireless communication device may receive / obtain one or more repetitive transmissions of a PDCCH. The PDCCH may indicate / provide / specify at least one PDSCH transmission. When the wireless communication device receives a repetitive PDCCH transmission, the wireless communication device may receive / obtain at least one beam indication of a DCI that corresponds to (or is the same as) a default beam (state) indication. For example, the wireless communication device may receive / obtain a first transmission configuration indicator (TCI) state in the DCI. The wireless communication device may obtain / receive a second TCI state. In some embodiments, the first TCI state and the second TCI state may be the same. The wireless communication device may transmit / transmit / broadcast the first TCI state and / or the second TCI state (e.g., the same as each other) to the wireless communication node.
[0049] With respect to PDSCH transmission, the TCI field (or other field) of the DCI may indicate / specify / provide at least one beam (state) indication (e.g., a first TCI state). Higher layer signaling (e.g., RRC signaling, MAC-CE signaling, and / or other types of signaling) may indicate / specify / provide / activate / enable a default beam or beam state (e.g., a second TCI state). In some embodiments, the default beam (state) may be used if the tci-PresentInDCI (or other parameter) is set to "enabled". In some embodiments, the default beam (state) may be used if the tci-PresentInDCI (or other parameter) is not configured in the RRC connected mode (or other mode). In some embodiments, the default beam (state) may be used if the offset (e.g., a time offset, such as a slot / symbol offset and / or other offset) between reception of the downlink (DL) DCI and the corresponding / associated / related PDSCH transmission is less than / below a threshold, such as a threshold indicated / provided / defined by timeDurationForQCL (or other parameter). I. EMBODIMENT 9
[0050] In some embodiments, the wireless communication device may receive / obtain one or more recurring transmissions of a PDCCH. The PDCCH may indicate / provide / specify at least one PDSCH transmission. In some embodiments, the wireless communication device may utilize a default beam (state) indication from MAC-CE signaling if / when one or more conditions are met / satisfied / fulfilled. The wireless communication device may use the default beam (state) indication to receive at least one PDSCH transmission. The wireless communication device may use the default beam (state) indication in response to evaluating / determining whether one or more conditions are met / satisfied / fulfilled. The one or more conditions may include the wireless communication device receiving / obtaining multiple PDCCH transmissions. The PDCCH transmission may indicate / specify / schedule at least one PDSCH transmission. The one or more conditions may include an offset (e.g., a time offset such as a slot offset, and / or other offset) between at least one of the multiple PDCCH transmissions and the scheduled PDSCH transmission (or other transmission) being equal to or greater / exceeding a threshold value (e.g., a threshold value indicated by timeDurationForQCL and / or other threshold value) and an offset (e.g., a time offset and / or other offset) between at least another of the multiple PDCCH transmissions and the scheduled PDSCH transmission being less / less than a threshold value (e.g., a threshold value indicated by timeDurationForQCL and / or other threshold value).
[0051] In some embodiments, the wireless communication device may assume / determine that one or more ports of a demodulation reference signal (DM-RS) of a serving cell's PDSCH and / or one or more PDSCH transmission opportunities are approximately co-located with one or more reference signals (RSs) with respect to one or more quasi-co-location (QCL) parameters that are associated / associated / linked to a TCI state (e.g., the second TCI state and / or other TCI states) that is indicated / activated by MAC-CE signaling (or other types of signaling, such as RRC signaling). (J. Methods for Parameter Estimation)
[0052] 3 illustrates a flow diagram of a method 350 for parameter estimation. The method 350 may be implemented using any of the components and devices detailed herein in conjunction with FIGS. 1-2. In brief, the method 350 may include determining (352) that a first number of PDCCH transmissions is K. The method 350 may include determining (354) a second number of PDCCH candidates. The method 350 may include counting (356) the second number of PDCCH candidates.
[0053] Referring now to operation (352), in some embodiments, a wireless communication device (e.g., UE) determines that a first number of PDCCH (candidate) transmissions is K. A wireless communication node (e.g., BS) may schedule the first number of PDCCH transmissions. In some embodiments, the first number of PDCCH transmissions may be associated / associated / linked (e.g., the first number of PDCCH transmissions may cause / trigger the same transmission). The first number of PDCCH transmissions may be candidates for blind detection decoding (e.g., candidates for monitoring). In some embodiments, the wireless communication device may determine / have an overbooking scenario determined (e.g., by the wireless communication node). The overbooking scenario may comprise a first number of non-overlapping PDCCH candidate transmissions in the SS set that exceeds / exceeds a predefined maximum number X of PDCCH candidate transmissions for blind detection decoding. The overbooking scenario may comprise a number of non-overlapping CCEs in the SS set that exceeds / exceeds a predefined maximum number Y of non-overlapping CCEs. In response to the overbooking scenario, the wireless communication device may decide and / or be caused to decide to skip / omit blind detection decoding for an associated PDCCH candidate transmission (e.g., the wireless communication device may skip / omit monitoring). In some embodiments, an associated PDCCH candidate transmission may be one that is received / obtained after X and / or Y are met / fulfilled (e.g., each associated overbooking PDCCH candidate may be received later in time). In response to the overbooking scenario, the wireless communication device may decide and / or be caused to decide to skip / omit blind detection decoding for an associated PDCCH candidate transmission (e.g., the wireless communication device may skip / omit monitoring). An associated PDCCH candidate transmission may be one that has a higher index than the index of a PDCCH candidate transmission that is received when X and / or Y are just met / fulfilled (but not beyond).
[0054] Referring now to operation (354), in some embodiments, the wireless communication device may determine a second number of PDCCH candidates to be counted for monitoring. In some embodiments, the second number may include or correspond to a value of 1 (or other value). When the second number has a value of 1, the wireless communication device may perform / perform and / or be caused to perform (e.g., by the wireless communication node) a single blind detection decoding. The wireless communication device may perform and / or be caused to perform a single blind detection decoding on the first number of PDCCH transmissions (or other transmissions). The wireless communication device may combine / sum / integrate / embedding / aggregate received data (e.g., demodulated data) from the first number of PDCCH transmissions and perform a single blind detection decoding. The wireless communication device may perform / perform a single blind detection decoding by performing / performing a blind detection decoding once on the combined received / obtained / obtained / aggregated data (e.g., demodulated data). The wireless communication device may perform a single blind detection decoding independently (or during) of performing / performing channel estimation separately / individually for each of the first number of PDCCH transmissions. For example, in response to or in addition to performing separate channel estimation, the wireless communication device may combine the received data and perform a single blind detection decoding.
[0055] In some embodiments, the second number may include or correspond to a value of K (or other value). When the second number has a value of K, the wireless communication device may perform / perform and / or be caused to be performed (e.g., by the wireless communication node) at least K blind detection decodings. The wireless communication device may perform each of the K blind detection decodings on received / obtained data of each of the first number of PDCCH transmissions. For example, the wireless communication device may count the K number of monitored PDCCH candidates for the first number of PDCCH candidate transmissions. The wireless communication device may perform the K blind detection decodings by performing / performing channel estimation separately / individually for each of the first number of PDCCH transmissions.
[0056] In some embodiments, the second number may include or correspond to K+1 values (or other values). If the second number has a value of K+1, the wireless communication device may perform / perform and / or be caused to perform at least K+1 blind detection decodings. The wireless communication device may perform K+1 blind detection decodings on the first number of PDCCH transmissions. The wireless communication device may perform (K+1) blind detection decodings by performing / performing each of the K blind detection decodings on the received data of each of the first number of PDCCH transmissions. The wireless communication device may perform one (or additional) blind detection decoding that combines / sums the received data from the first number of PDCCH transmissions and contributes to a total count of (K+1) blind detection decodings. The wireless communication device may combine / sum the received data in response to receiving / obtaining the associated DCI of the PDCCH candidate. In some embodiments, the wireless communication device may perform one blind detection decoding to contribute to a total count of (K+1) blind detection decodings on the combined received data. In addition to (or separately from) performing / performing channel estimation separately / individually for each of the first number of PDCCH transmissions, the wireless communication device may perform (K+1) blind detection decoding.
[0057] Now referring to operation (356), in some embodiments, the wireless communication device may count / determine a second number of PDCCH candidates for monitoring for the first number of PDCCH transmissions. In some embodiments, the wireless communication device may transmit / transmit / broadcast / provide / indicate the capabilities of the wireless communication device to a wireless communication node. The wireless communication node may receive / obtain the capabilities of the wireless communication device from the wireless communication device. The wireless communication device may transmit / provide (e.g., to a wireless communication node, such as a gNB) the capabilities of the wireless communication device to support the third number of PDCCH candidates to be counted for monitoring. The third number of PDCCH candidates (e.g., to be counted for monitoring) may be associated / associated / linked to the first number (e.g., K) of PDCCH transmissions. In some embodiments, the third number may correspond to an integer (or other value) greater than 0. The third number may include or correspond to an integer from 1 to (K+1). In some embodiments, the third number may represent / transmit / indicate / provide a number of PDCCH candidates to be counted for monitoring with respect to the K associated PDCCH candidates for blind detection decoding. In some embodiments, the wireless communication device may receive / obtain an indication of the second number (to be counted for monitoring) from a wireless communication node. The wireless communication node may provide / send / transmit the indication to the wireless communication device using higher layer signaling, such as RRC signaling, MAC-CE signaling, and / or other types of signaling. The wireless communication device may count the number of monitored PDCCH candidates with respect to the first number of PDCCH transmissions according to the indication of the second number.
[0058] In some embodiments, the wireless communication device may determine and / or have determined (e.g., by a wireless communication node) one or more CCE indices of one or more subsequent / successor associated PDCCH candidate transmissions. The wireless communication device may determine and / or have determined (e.g., by a wireless communication node) one or more CCE indices based on at least one CC index (or other index) of the first PDCCH candidate transmission.
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[0059] In some embodiments, the wireless communication device may receive / obtain the first TCI state (e.g., beam indication) and / or the second TCI state (e.g., default beam indication). In some embodiments, the DCI may include / carry / provide / indicate / specify the first TCI state (or other information). For example, the DCI may include / provide to the wireless communication device the first TCI state (e.g., one or more beam indications). In some embodiments, RRC signaling, MAC CE signaling, and / or other types of signaling may be used to activate / enable / indicate / provide to the wireless communication device the second TCI state (or other information). The wireless communication device may transmit / transmit / broadcast / provide to the wireless communication node the first TCI state and / or the second TCI state. The wireless communication node may receive / obtain from the wireless communication device the first TCI state and / or the second TCI state. In some embodiments, the first TCI state may be the same as the second TCI state (e.g., default beam indication). In some embodiments, the wireless communication device may use and / or be made to use default beam indication from MAC CE signaling (or other types of signaling). The wireless communication device may use default beam indication if / when the wireless communication device receives / obtains multiple PDCCH transmissions (e.g., one or more PDCCH repetitions) to indicate a PDSCH transmission. The wireless communication device may use default beam indication if / when an offset between at least one of the multiple PDCCH transmissions and the scheduled PDSCH transmission is equal to or greater than / above a threshold (e.g., a threshold indicated by timeDurationForQCL). The wireless communication device may use default beam indication if / when an offset between at least another of the multiple PDCCH transmissions and the scheduled PDSCH transmission is less than / below a threshold.
[0060] Although various embodiments of the present solution have been described above, it should be understood that they have been presented only as examples and not as limitations. Similarly, various schematic diagrams may depict example architectures or configurations, which are provided to enable those skilled in the art to understand example features and functions of the present solution. However, such a person skilled in the art will understand that the present solution is not limited to the example architectures or configurations shown, but can be implemented using various alternative architectures and configurations. In addition, as will be understood by those skilled in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the scope and scope of the present disclosure should not be limited by any of the example embodiments described above.
[0061] It should also be understood that any reference to elements herein using a designation such as "first," "second," etc., does not generally limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some manner.
[0062] Additionally, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description may be represented by, for example, voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0063] Those skilled in the art will further appreciate that any of the various illustrative logic blocks, modules, processors, means, circuits, methods, and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of the two), firmware, various forms of programs or design code incorporating instructions (which may be referred to herein for convenience as "software" or "software modules"), or any combination of these techniques. To clearly illustrate this interchangeability of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps are described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software, or a combination of these techniques, depends on the particular application and design constraints imposed on the overall system. Those skilled in the art may implement the described functionality in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure.
[0064] Further, those skilled in the art will appreciate that the various illustrative logic blocks, modules, devices, components, and circuits described herein can be implemented in or by an integrated circuit (IC), which may include a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logic blocks, modules, and circuits may further include an antenna and / or a transceiver to communicate with various components in a network or device. The general purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration for performing the functions described herein.
[0065] When implemented in software, the functions can be stored as one or more instructions or codes on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, including any medium that can be enabled to transfer a computer program or code from one place to another. A storage medium can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.
[0066] In this document, the term "module," as used herein, refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purposes of discussion, various modules are described as separate modules. However, as would be apparent to one skilled in the art, two or more modules may be combined to form a single module that performs the associated functions according to an embodiment of the present solution.
[0067] In addition, memory or other storage and communication components may be employed in embodiments of the solution. It should be understood that for purposes of clarity, the above description describes embodiments of the solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains may be used without departing from the solution. For example, functionality illustrated as being performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Thus, references to specific functional units do not indicate a strict logical or physical structure or organization, but merely a reference to a suitable means for providing the described functionality.
[0068] Various modifications of the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the present disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the broadest scope consistent with the novel features and principles disclosed herein, as limited in the following claims.
Claims
1. 1. A method, comprising: determining a first number of associated physical downlink control channel (PDCCH) transmissions, the first number being an integer value K greater than one; determining, by the wireless communication device (104), a second number of PDCCH candidates to be counted for blind detection decoding for monitoring for the first number of associated PDCCH transmissions; and performing (K+1) blind detection decoding on the first number of associated PDCCH transmissions, the wireless communication device (104) performing (K+1) blind detection decoding on the first number of associated PDCCH transmissions, the performing comprising: performing K blind detection decodings, each of the K blind detection decodings being performed on received data of a respective one of the first number of associated PDCCH transmissions; combining data received from the first number of associated PDCCH transmissions; and performing a single blind detection decoding on the combined received data; It is carried out by A method comprising:
2. the second number is 1; The method includes the wireless communication device (104) performing a single blind detection decoding on the first number of associated PDCCH transmissions, the performing comprising: combining data received from the first number of associated PDCCH transmissions; and performing blind detection decoding on the combined received data; and The method of claim 1 , wherein the method is carried out by
3. the second number is K; 2. The method of claim 1, wherein the wireless communication device (104) performs K blind detection decodings, each of the K blind detection decodings being performed on received data of a respective one of the first number of associated PDCCH transmissions.
4. The method of claim 2, further comprising: performing channel estimation separately for each of the first number of associated PDCCH transmissions.
5. The method of claim 1, comprising the wireless communication device (104) transmitting to a wireless communication node (102) an capability of the wireless communication device (104) to support a third number of associated PDCCH candidates to be counted for monitoring for the first number of associated PDCCH transmissions.
6. 6. The method of claim 5, wherein the third number is an integer from 1 to (K+1), and the third number represents a number of associated PDCCH candidates to be counted for monitoring for the first number of associated PDCCH transmissions.
7. The method of claim 1, further comprising the wireless communication device (104) receiving an indication of the second number from a wireless communication node (102) via radio resource control (RRC) signaling.
8. The method comprises: determining an overbooking scenario, the overbooking scenario including at least one of: a fourth number of non-overlapping PDCCH candidates in a search space (SS) set exceeding a predefined maximum number X; or a fifth number of non-overlapping channel control elements (CCEs) in the SS set exceeding a predefined maximum number Y; determining, in response to the overbooking scenario, that the wireless communication device skips blind detection decoding for each of the fourth number of PDCCH candidates received after X or Y is met, or skips blind detection decoding for each of the fourth number of PDCCH candidates having an index higher than an index of a PDCCH candidate received when X or Y is met; The method of claim 1 , comprising:
9. The method comprises: The wireless communication device (104) receives a first transmission configuration indicator (TCI) state and a second TCI state, the first TCI state being indicated in downlink control information (DCI) and the second TCI state being indicated or activated via radio resource control (RRC) signaling or medium access control-control element (MAC-CE) signaling; the wireless communication device (104) transmitting the first TCI state and the second TCI state to a wireless communication node (102); Including, The method of claim 1 , wherein the first TCI state is the same as the second TCI state.
10. The method according to claim 1, receiving a plurality of Physical Downlink Shared Channel (PDCCH) transmissions indicating PDSCH transmissions; if an offset between at least one of the plurality of PDCCH transmissions and a scheduled PDSCH transmission is equal to or greater than a threshold and an offset between at least another of the plurality of PDCCH transmissions and the scheduled PDSCH transmission is less than the threshold, 2. The method of claim 1, comprising the wireless communication device (104) using default beam instructions from medium access control control element (MAC CE) signaling.
11. 1. A method, comprising: A wireless communication node (102) scheduling a first number of associated physical downlink control channel (PDCCH) transmissions, the first number being an integer value K greater than 1. Including, The wireless communication device (104) determines a second number of the PDCCH candidates to be counted for blind detection decoding for monitoring for the first number of associated PDCCH transmissions; The wireless communication device (104) performs (K+1) blind detection decoding on the first number of associated PDCCH transmissions, the performing comprising: performing K blind detection decodings, each of the K blind detection decodings being performed on received data of a respective one of the first number of associated PDCCH transmissions; combining data received from the first number of associated PDCCH transmissions; and performing a single blind detection decoding on the combined received data; A method carried out by.
12. A wireless communication device (104), the wireless communication device (104) comprising at least one processor (236); The at least one processor (236) determining a first number of associated physical downlink control channel (PDCCH) transmissions, the first number being an integer value K greater than one; determining a second number of PDCCH candidates to be counted for blind detection decoding for monitoring related to the first number of associated PDCCH transmissions; performing (K+1) blind detection decoding for the first number of associated PDCCH transmissions, said performing comprising: performing K blind detection decodings, each of the K blind detection decodings being performed on received data of a respective one of the first number of associated PDCCH transmissions; combining data received from the first number of associated PDCCH transmissions; and performing a single blind detection decoding on the combined received data; It is carried out by A wireless communication device (104) configured to:
13. A wireless communication node, the wireless communication node comprising at least one processor (214); The at least one processor (214) scheduling a first number of associated physical downlink control channel (PDCCH) transmissions, the first number being an integer value K greater than one; The device is configured to: The wireless communication device (104) determines a second number of PDCCH candidates to be counted for blind detection decoding for monitoring for the first number of associated PDCCH transmissions; The wireless communication device (104) performs (K+1) blind detection decoding on the first number of associated PDCCH transmissions, the performing comprising: performing K blind detection decodings, each of the K blind detection decodings being performed on received data of a respective one of the first number of associated PDCCH transmissions; combining data received from the first number of associated PDCCH transmissions; and performing a single blind detection decoding on the combined received data; A wireless communication node.
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Patent Citations
Method and apparatus for transmitting downlink control channel in wireless communication system
US20200260416A1