Systems and methods for performing downlink / uplink operations
The wireless communication device's timing configuration addresses scheduling challenges in cellular networks by defining active and inactive times with granular parameters, ensuring efficient downlink and uplink operations and network energy savings.
Patent Information
- Application Number
- PCT/CN2024/076475
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-06
- Publication Date
- 2025-08-14
AI Technical Summary
Existing wireless communication systems face challenges in efficiently managing device communication due to varying traffic conditions and beam hopping in cellular networks, particularly in non-terrestrial networks, leading to unpredictable active and inactive times that affect data transmission and reception scheduling.
A wireless communication device determines a timing configuration for signal transmission and reception, considering parameters such as active and inactive times, which are defined with specific granularities and types, and adjusts scheduling based on quasi co-location relationships and signaling from the network node.
This approach enables precise scheduling of downlink and uplink operations, accommodating varying traffic conditions and beam hopping, thereby enhancing communication efficiency and network energy savings.
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Figure CN2024076475_14082025_PF_FP_ABST
Abstract
Description
SYSTEMS AND METHODS FOR PERFORMING DOWNLINK / UPLINK OPERATIONSTECHNICAL FIELD
[0001] The disclosure relates generally to wireless communications, including but not limited to systems and methods for performing downlink / uplink operations.BACKGROUND
[0002] Coverage is a key consideration in cellular network deployments. With the rise of interconnected devices, there is a growing focus on effective device communication. The current 3GPP standards, spanning from 3G to 5G and beyond, focus on the importance of seamless communication among various devices, from smart home devices to wearable devices. In industrial settings, the complexity of tasks often requires collaboration. This calls for several cooperative operational management systems, with the aim of creating workgroups and managing different types of devices to complete the required tasks.SUMMARY
[0003] The example embodiments disclosed herein are directed to solving the issues relating to one or multiple of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various embodiments, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure.
[0004] At least one aspect is directed to a system, method, apparatus, or a computer-readable medium. A wireless communication device (e.g., UE) can determine a timing configuration and / or perform a transmission or reception of a signal according to the timing configuration. In certain implementations, the wireless communication device can determine a reception of a first signal. In some implementations, the wireless communication device can determine a transmission or reception time of a second signal that includes the signal, according to the reception time of the first signal and / or the timing configuration.
[0005] In certain implementations, the timing configuration may include a plurality of parameters of at least one of the following: an active time or an inactive time, associated with the wireless communication device or a cell. In some implementations, the plurality of parameters may include at least one of the following: a periodicity, an offset, a start time, or a duration, related to the active time or the inactive time. In certain implementations, the periodicity, the start time, the offset, or the duration can be indicated at a granularity, unit and / or level of millisecond, slot, or symbol. In certain implementations, the timing configuration may include at least one of the following: at least one parameter of the active time or the inactive time; at least one parameter of the active time and at least one parameter of the inactive time, independently / separately configured; or at least one parameter of the active time and at least one parameter of the inactive time, jointly configured.
[0006] In certain implementations, the wireless communication device can determine the timing configuration via (e.g., via receiving a signaling that indicates the type and / or index) at least one of the following: a type or an index of the timing configuration. In certain implementations, the type may include a plurality of types, including for example type 1 or type 2, where type 1 and type 2 can be respectively associated with at least one of the following: a control channel or signal; a data or shared channel or signal; a common or cell-specific data or signal; a user equipment (UE) -specific data or signal; reception of downlink information or signal; transmission of uplink information or signal; wide beam; narrow beam; quasi co-location (QCL) relationship with a first type of reference signal; or QCL relationship with a second type of reference signal.
[0007] In certain implementations, the wireless communication device can receive one or more candidate timing configurations via a first signaling (e.g., RRC or MAC CE signaling) from a wireless communication node (e.g., BS) . In some implementations, the wireless communication device can receive an indication of the timing configuration, from the one or more candidate timing configurations, from the wireless communication node via a second signaling. In certain implementations, the second signaling may include an indication of at least one of the following: the type or the index of the timing configuration.
[0008] In certain implementations, the indication may include at least one of the following: at least one cell-specific parameter or at least one user equipment (UE) specific parameter (e.g., ServingCellConfig, ServingCellConfigCommon, ServingCellConfigCommonSIB) ; at least one UE group specific parameter; at least one uplink (UL) parameter (e.g., BWP-Uplink, BWP-UplinkCommon, BWP-UplinkDedicated) or at least one downlink (DL) parameter (e.g., BWP-Downlink, BWP-DownlinkCommon, BWP-DownlinkDedicated) ; at least one parameter (e.g., the index of active / inactive time configuration for PDSCH reception may be included in at least one of PDSCH-Config, PDSCH-ConfigCommon, PDSCH-ServingCellConfig; the index of active / inactive time configuration for PDCCH reception may be included in at least one of PDCCH-Config, PDCCH-ConfigCommon, PDCCH-ConfigSIB1, PDCCH-ServingCellConfig; the index of active / inactive time configuration for SRS transmission may be included in SRS-configuration) of a signal, channel or reference signal; or at least one parameter of a transmission.
[0009] In certain implementations, each group corresponding to at least one UE group-specific parameter can be determined by at least one of the following: UE reported location; a beam provided / applied / allocated / used in the initial access stage; or a synchronization signal block (SSB) index to obtain a master information block (MIB) in the initial access stage. In certain implementations, the indication may include an identifier (ID) of a group of UEs, or the indication may include at least one UE group-specific parameter for a plurality of groups of UEs indicated sequentially in one or more fields.
[0010] In certain implementations, the one or more candidate timing configurations may include at least one of the following: a first timing configuration associated with all signals, channels, or reference signals in downlink reception, and / or a second timing configuration associated with all signals, channels, or reference signals in uplink transmission; a plurality of timing configurations each associated with a respective signal, channel, or reference signal; or a plurality of lists of timing configurations, with each timing configuration associated with a respective signal, channel, or reference signal.
[0011] In certain implementations, at least one parameter of the transmission may include at least one of the following: an index, a start time, a periodicity, an offset, or a duration, related to the active time or the inactive time. In certain implementations, a downlink control information (DCI) scheduling a transmission may indicate at least one of the following: an index of the timing configuration, where at least one parameter of the timing configuration is configured via a radio resource control (RRC) signaling; an index of the timing configuration via a time domain resource allocation (TDRA) field of the DCI signaling, where at least one parameter of the timing configuration is configured via an RRC signaling; at least one parameter of the timing configuration; or an index of the timing configuration via a TDRA field of the DCI signaling, where at least one parameter of the timing configuration is configured via a TDRA table in an RRC signaling.
[0012] In certain implementations, the wireless communication device can determine the timing configuration for the second signal according to the timing configuration of a reference signal that has a quasi co-location (QCL) relationship with the second signal. In certain implementations, where the signal is a periodic signal, an occasion of the signal can be valid if the occasion is within the active time associated with the timing configuration.
[0013] In certain implementations, the reception time of the first signal and the transmission or reception time of the second signal in slot n+k can be within the same active time. In some implementations, n indicates a slot number of a reception slot of the first signal, and / or k is an offset between the first signal and the second signal. In certain implementations, the first slot of the second signal can be within the slot n+deltaK+k. In some implementations, n indicates a slot number of the last reception slot of the first signal, deltaK is an offset component where n+deltaK indicates a reference slot with subcarrier spacing (SCS) configuration of the first signal, and / or k is an offset between the reference slot and the first slot of the second signal.
[0014] In certain implementations, a first slot of the second signal can be within slot n+k+deltaK, where n indicates a slot number of a last reception slot of the first signal, n+k is indicates a reference slot, k is an offset between the last reception slot of the first signal and the reference slot, and / or deltaK is an offset between the reference slot and the first slot of the second signal with a subcarrier spacing (SCS) configuration of the second signal.
[0015] In certain implementations, where the transmission or reception of the second signal is performed within one or more active times, e.g., across 2 different active times, the first part of the second signal is in a first active time and / or the second part of the second signal is in a second active time. In certain implementations, the transmission or reception time of the first part of the second signal can be determined by the reception time of the first signal. In certain implementations, a first slot of a first part of the second signal can be within slot n+k, where n indicates a slot number of a last reception slot of a first signal and k is an offset between the last reception slot of the first signal and the first slot of the first part of the second signal.
[0016] In certain implementations, the first slot of the second part of the second signal can be in slot n + K_offset, wherein n is the last slot for the transmission or reception of the first part of second signal and the K_offset is determined by the timing configuration from the wireless communication node. In certain implementations, the first slot of the second part of the second signal can be in slot n, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal. In certain implementations, the first slot of the second part of the second signal can be in the slot n+offset, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal, and / or offset can be determined by the timing configuration from the wireless communication node or the capability report of the wireless communication device.
[0017] In certain implementations, a first slot of a second part of the second signal can be within slot n+k+deltaK+deltaN, where n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between the last reception slot of the first signal and the reference slot, deltaN is a number of slots in the first part of the second signal, and / or deltaK is an offset component wherein deltaN+deltaK is an offset between the reference slot and the first slot of the second part of the second signal with a subcarrier spacing (SCS) configuration of the second signal.
[0018] In certain implementations, deltaK can be determined using at least one of the following: a periodicity, an offset, or a duration of the active time, where the periodicity, the offset, or the duration of the active time can be indicated in at least one of system information, a radio resource control signaling, or a medium access control control element (MAC CE) signaling. In some implementations, deltaK is indicated in a field of downlink control information (DCI) signaling, or in a parameter of a radio resource control (RRC) signaling. In some implementations, deltaK is equal to 0. In certain implementations, deltaK may be equal to at least one of the following: a periodicity of the active time minus a duration of the active time; a periodicity of a Type 2 active time minus a duration of the Type 2 active time; or an offset between a start point of a Type 1 active time and a start point of a Type 2 active time, minus a duration of the Type 1 active time.
[0019] In certain implementations, the transmission or reception of the second signal can be performed at a different active time from the reception of first signal. In certain implementations, where the transmission or reception of the second signal is performed within one or more active times, e.g., across 2 different active times, the first part of the second signal can be in a first active time and / or the second part of second signal can be in a second active time. In certain implementations, the transmission or reception time of the first part of the second signal can be determined by the reception time of the first signal. In certain implementations, a first slot of a first part of the second signal can be in slot n+k+deltaK1, where at least one of: n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between slot n and the reference slot, and deltaK1 is an offset between the reference slot and the first slot of the first part of the second signal.
[0020] In certain implementations, the first slot of the second part of the second signal can be in slot n + K_offset, where n is the last slot for the transmission or reception of the first part of the second signal and the K_offset is determined by the timing configuration from the wireless communication node. In certain implementations, the first slot of the second part of the second signal can be in slot n, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal. In certain implementations, the first slot of the second part of the second signal can be in the slot n+offset, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal and / or offset is determined by the timing configuration from the wireless communication node or the capability report of the wireless communication device.
[0021] In certain implementations, a first slot of a second part of the second signal can be within slot n+k+deltaK1+deltaN+deltaK2, where n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between slot n and the reference slot, deltaK1 is an offset between the reference slot and the first slot of first part of the second signal with a subcarrier spacing (SCS) configuration of the second signal, deltaN is a number of slots in the first part of the second signal, or deltaK2 is an offset component where deltaK1+deltaN+deltaK2 is an offset between the reference slot and the first slot of the second part of the second signal with a SCS configuration of the second signal.
[0022] In certain implementations, each of deltaK1 and deltaK2 can be determined using at least one of the following: a periodicity of Type 1 active time, a periodicity of Type 2 active time, an offset between a start point of the Type 1 active time and a start point of the Type 2 active time, a duration of the Type 1 active time, or a duration of the Type 2 active time, one or more of which may be indicated in at least one of the following: system information, a radio resource control signaling, or a medium access control control element (MAC CE) signaling. In some implementations, deltaK1 and deltaK2 can be indicated in one or more fields of downlink control information (DCI) signaling or in one or more parameters of a radio resource control (RRC) signaling.
[0023] In certain implementations, deltaK1 can be equal to an offset between a start point of the Type 1 active time and a start point of the Type 2 active time, minus a duration of the Type 1 active time. In certain implementations, deltaK2 can be equal to a periodicity of the Type 2 active time minus a duration of the Type 2 active time. In certain implementations, where a repetition crosses a boundary of an end of the active time, the repetition may not be included in the first part of the second signal, and / or a slot corresponding to the repetition may not be counted in deltaN.
[0024] In some implementations, the system of the technical solution disclosed herein can support performing downlink / uplink operations, according to at least one of the following example configurations (e.g., features or solutions) :
[0025] Example configuration 1: Scheduling adjustments when a first signal and a second signal share the same type of active time.
[0026] Example configuration 2: Scheduling adjustments when a first signal and a second signal have different types of active time.BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Various example embodiments of the present solution are described in detail below with reference to the following figures or drawings. The drawings are provided for purposes of illustration only and merely depict example embodiments of the present solution to facilitate the reader’s understanding of the present solution. Therefore, the drawings should not be considered limiting of the breadth, scope, or applicability of the present solution. It should be noted that for clarity and ease of illustration, these drawings are not necessarily drawn to scale.
[0028] FIG. 1 illustrates an example cellular communication network in which techniques disclosed herein may be implemented, in accordance with an embodiment of the present disclosure;
[0029] FIG. 2 illustrates a block diagram of an example base station and a user equipment device, in accordance with some embodiments of the present disclosure;
[0030] FIG. 3 illustrates an example arrangement / configuration of a satellite footprint, in accordance with some embodiments of the present disclosure;
[0031] FIG. 4 illustrates an example arrangement / configuration of a non-terrestrial network, in accordance with some embodiments of the present disclosure;
[0032] FIG. 5 illustrates an example implementation of a scheduling scenario where a first signal and a second signal share the same type of active time, in accordance with some embodiments of the present disclosure;
[0033] FIG. 6 illustrates another example implementation of a scheduling scenario where a first signal and a second signal share the same type of active time, in accordance with some embodiments of the present disclosure;
[0034] FIG. 7 illustrates another example implementation of a scheduling scenario where a first signal and a second signal share the same type of active time, in accordance with some embodiments of the present disclosure;
[0035] FIG. 8 illustrates an example implementation of an activated wide beam, including one or more activated narrow beams, in accordance with some embodiments of the present disclosure;
[0036] FIG. 9 illustrates an example implementation of an activated downlink area, including one or more activated uplink areas, in accordance with some embodiments of the present disclosure;
[0037] FIG. 10 illustrates an example implementation of a scheduling scenario where a first signal and a second signal share different types of active time, in accordance with some embodiments of the present disclosure;
[0038] FIG. 11 illustrates another example implementation of a scheduling scenario where a first signal and a second signal share different types of active time, in accordance with some embodiments of the present disclosure;
[0039] FIG. 12 illustrates another example implementation of a scheduling scenario where a first signal and a second signal share different types of active time, in accordance with some embodiments of the present disclosure;
[0040] FIG. 13 illustrates an example implementation of an activated wide beam excluding activated narrow beams, in accordance with some embodiments of the present disclosure;
[0041] FIG. 14 illustrates an example implementation of an activated downlink area excluding activated uplink areas, in accordance with some embodiments of the present disclosure;
[0042] FIG. 15 illustrates another example implementation of a scheduling scenario where a first signal and a second signal are associated with different types of active time, in accordance with some embodiments of the present disclosure;
[0043] FIG. 16 illustrates another example implementation of a scheduling scenario where a first signal and a second signal are associated with different types of active time, in accordance with some embodiments of the present disclosure;
[0044] FIG. 17 illustrates an example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0045] FIG. 18 illustrates another example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0046] FIG. 19 illustrates another example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0047] FIG. 20 illustrates an example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0048] FIG. 21 illustrates another example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0049] FIG. 22 illustrates another example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0050] FIG. 23 illustrates another example implementation of a timing scenario, in accordance with some embodiments of the present disclosure;
[0051] FIG. 24 illustrates another example implementation of a timing scenario, in accordance with some embodiments of the present disclosure; and
[0052] FIG. 25 illustrates a flow diagram of an example method for performing downlink / uplink operations, in accordance with an embodiment of the present disclosure.DETAILED DESCRIPTION
[0053] 1. Mobile Communication Technology and Environment
[0054] FIG. 1 illustrates an example wireless communication network, and / or system, 100 in which techniques disclosed herein may be implemented, in accordance with an embodiment of the present disclosure. 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 (NB-IoT) network, and is herein referred to as “network 100. ” Such an example network 100 includes a base station 102 (hereinafter “BS 102” ; also referred to as wireless communication node) and a user equipment device 104 (hereinafter “UE 104” ; also referred to as wireless communication device) that can communicate with each other via a communication link 110 (e.g., a wireless communication channel) , and a cluster of cells 126, 130, 132, 134, 136, 138 and 140 overlaying a geographical area 101. In FIG. 1, the BS 102 and UE 104 are contained within a respective geographic boundary of cell 126. Each of the other cells 130, 132, 134, 136, 138 and 140 may include at least one base station operating at its allocated bandwidth to provide adequate radio coverage to its intended users.
[0055] For example, the BS 102 may operate at an allocated channel transmission bandwidth to provide adequate coverage to the UE 104. The BS 102 and the UE 104 may communicate via a downlink radio frame 118, and an uplink radio frame 124 respectively. Each radio frame 118 / 124 may be further divided into sub-frames 120 / 127 which may include data symbols 122 / 128. In the present disclosure, the BS 102 and UE 104 are described herein as non-limiting examples of “communication nodes, ” generally, which can practice the methods disclosed herein. Such communication nodes may be capable of wireless and / or wired communications, in accordance with various embodiments of the present solution.
[0056] FIG. 2 illustrates a block diagram of an example 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. The system 200 may include components and elements configured to support known or conventional operating features that need not be described in detail herein. In one illustrative embodiment, system 200 can be used to communicate (e.g., transmit and receive) data symbols in a wireless communication environment such as the wireless communication environment 100 of FIG. 1, as described above.
[0057] 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 module being coupled and interconnected with one another as necessary via 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 module being coupled and interconnected with one another as necessary via a data communication bus 240. The BS 202 communicates with the UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for transmission of data as described herein.
[0058] As would be understood by persons of ordinary skill in the art, system 200 may further include any number of modules other than the modules 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, various illustrative components, blocks, modules, circuits, and steps are described generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software can depend upon the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a suitable manner for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.
[0059] In accordance with some embodiments, the UE transceiver 230 may be referred to herein as an “uplink” transceiver 230 that includes a radio frequency (RF) transmitter and a RF receiver each comprising circuitry that is coupled to the antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in time duplex fashion. Similarly, in accordance with some embodiments, the BS transceiver 210 may be referred to herein as a “downlink” transceiver 210 that includes a RF transmitter and a RF receiver each comprising circuity that is coupled to the antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in time duplex fashion. The operations of the two transceiver modules 210 and 230 may be coordinated in time such that the uplink receiver circuitry is coupled to the uplink antenna 232 for reception of transmissions over the wireless transmission link 250 at the same time that the downlink transmitter is coupled to the downlink antenna 212. Conversely, the operations of the two transceivers 210 and 230 may be coordinated in time such that the downlink receiver is coupled to the downlink antenna 212 for reception of transmissions over the wireless transmission link 250 at the same time that the uplink transmitter is coupled to the uplink antenna 232. In some embodiments, there is close time synchronization with a minimal guard time between changes in duplex direction.
[0060] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via the wireless data communication link 250, and cooperate with a suitably configured RF antenna arrangement 212 / 232 that can support a particular wireless communication protocol and modulation scheme. In some illustrative embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as the Long Term Evolution (LTE) and emerging 5G standards, and the like. It is understood, however, that the present disclosure is not necessarily limited in application to a particular standard and associated protocols. Rather, the UE transceiver 230 and the base station transceiver 210 may be configured to support alternate, or additional, wireless data communication protocols, including future standards or variations thereof.
[0061] In accordance with various embodiments, the BS 202 may be an evolved node B (eNB) , a serving eNB, a target eNB, a femto station, or a pico station, for example. In some embodiments, the UE 204 may be embodied in various types of user devices such as a mobile phone, a smart phone, a personal digital assistant (PDA) , tablet, laptop computer, 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. In this manner, a processor may be realized as a microprocessor, a controller, a microcontroller, a state machine, or the like. A processor may also be implemented as a combination of computing devices, e.g., a combination of a digital signal processor and a microprocessor, a plurality of microprocessors, one or multiple microprocessors in conjunction with a digital signal processor core, or any other such configuration.
[0062] Furthermore, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in firmware, in a software module executed by processor modules 214 and 236, respectively, or in 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, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 may be coupled to the processor modules 210 and 230, respectively, such that the processors modules 210 and 230 can read information from, and write information to, memory modules 216 and 234, respectively. The memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230. In some embodiments, the memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be executed by processor modules 210 and 230, respectively. Memory modules 216 and 234 may also each include non-volatile memory for storing instructions to be executed by the processor modules 210 and 230, respectively.
[0063] The network communication module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bi-directional communication between base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, network communication module 218 may be configured to support internet or WiMAX traffic. In a typical deployment, without limitation, network communication module 218 provides an 802.3 Ethernet interface such that base station transceiver 210 can communicate with a conventional Ethernet based computer network. In this manner, the network communication module 218 may include a physical interface for connection to the computer network (e.g., Mobile Switching Center (MSC) ) . The terms “configured for, ” “configured to” and conjugations thereof, as used herein with respect to a specified operation or function, refer to a device, component, circuit, structure, machine, signal, etc., that is physically constructed, programmed, formatted and / or arranged to perform the specified operation or function.
[0064] The Open Systems Interconnection (OSI) Model (referred to herein as, “open system interconnection model” ) is a conceptual and logical layout that defines network communication used by systems (e.g., wireless communication device, wireless communication node) open to interconnection and communication with other systems. The model is broken 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 a logical network and effectively describes computer packet transfer by using different layer protocols. The OSI Model may also be referred to as the seven-layer OSI Model or the seven-layer model. In some embodiments, a first layer may be a physical layer. In some embodiments, a second layer may be a Medium Access Control (MAC) layer. In some embodiments, a third layer may be a Radio Link Control (RLC) layer. In some embodiments, a fourth layer may be a Packet Data Convergence Protocol (PDCP) layer. In some embodiments, a fifth layer may be a Radio Resource Control (RRC) layer. In some embodiments, a sixth layer may be a Non-Access Stratum (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer being the other layer.
[0065] Various example embodiments of the present solution are described below with reference to the accompanying figures to enable a person of ordinary skill in the art to make and use the present solution. As would be apparent to those of ordinary skill in the art, after reading the present disclosure, various changes or modifications to the examples described herein can be made without departing from the scope of the present solution. Thus, the present solution is not limited to the example embodiments and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed herein are merely example approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present solution. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present solution is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
[0066] 2. Systems and Methods for Performing Downlink / Uplink Operations
[0067] In NTN (non-terrestrial networks) , beam hopping can be used to facilitate coverage of a huge area with limited simultaneous beams, and coverage availability based on beam sweeping periodicity can be adaptive to the traffic load of different areas.
[0068] In certain implementations, as shown in FIG. 3, the whole footprint of a satellite can be very large. For example, a typical low-earth orbit (LEO) satellite with a 600km orbit height can cover a circular area with a radius of approximately 1000km, with a minimum elevation angle of 30 degrees. Meanwhile, the footprint of a single beam in terrestrial networks can be limited by design. For example, the maximum radius of a beam can be 100km due to the physical random access channel (PRACH) cyclic prefix (CP) length limitation. As a result, a large number of beams (e.g., hundreds or even thousands) may be required for a satellite to cover its whole footprint. However, due to the total transmission power limitation of a satellite, only a part / portion of the beams can be activated simultaneously to ensure a satisfactory link budget. In this regard, beam hopping may result in beam active time, in which the UE can be expected to transmit or receive the data, and the beam active time can impact the existing determination method of data transmission / reception time. In certain implementations, a method of DL / UL operation can be used for the TN and / or NTN network (s) .
[0069] Referring now to FIG. 4, depicted is a structure of transparent NTN. As shown, the link between the user equipment (UE) and the satellite is a service link. The link between the base station (BS) and the satellite is a feeder link and can be common for all UEs within the same cell. In TN (terrestrial networks) , a repeater (e.g., NCR) or RIS (reconfigurable intelligent surfaces) with beam-sweeping capability may be used to deal with coverage holes. In certain implementations, the common signal from the BS can be forwarded by the repeater, or RIS, using beam hopping. Additionally, network energy savings (NES) can be considered by a BS that uses beam hopping to serve low-traffic areas or during off-peak hours. In certain implementations, a “beam” can be a spatial filter, an associated RS with a QCL relationship, or a beam index for a communication node. The communication node can be a network node or a terminal.
[0070] In certain implementations, the data channel transmission / reception time can be determined by a downlink control information (DCI) signaling’s reception slot and a K value indicated in the telecommunications and digital government regulatory authority (TDRA) field of the DCI signaling. However, this determination may not consider beam hopping, which can result in periodic or aperiodic beam active time. In certain implementations, the active time pattern can have an impact on the determination of data transmission / reception time.
[0071] In certain implementations, the K values may include several parameters, including, but not limited to:K0 indicating the slot offset between DCI (e.g., DCI signaling) and its scheduled PDSCH (physical downlink shared channel) transmission; K1 indicating the slot offset between PDSCH and a corresponding HARQ ACK (hybrid automatic repeat request acknowledgement) feedback; or K2 indicating the slot offset between DCI and its scheduled PUSCH transmission. In certain implementations, the control channel transmission / reception can use a wide beam, and the data channel transmission / reception can use a narrow beam. In certain implementations, the scheduling of data transmission / reception may not be under the same beam active time due to beam hopping.
[0072] In certain implementations, an active time can be defined as the time / period when the service is available to a certain UE / cell or beam. Additionally, in certain implementations, the active time can refer to the serving time, beam active time, or activated time ON-duration, among others. In certain embodiments, a satellite may serve a huge area with beam hopping, where one cell or one UE may be served within the active time when the corresponding beam is available (e.g., switched on or hopped) to such an area, cell, or UE. In certain implementations (e.g., varying traffic conditions) , the active time may be periodic; for example, the active time pattern can be certain / consistent / stable / predicted over a relatively long period of time. In certain implementations, the active time may be aperiodic, such as when the traffic is unexpected / unpredictable, and no certain / consistent pattern can be maintained.
[0073] In certain implementations, the inactive time can be defined as the time / period when the service is not available to a certain UE / cell or beam. Additionally, in certain implementations, the inactive time can refer to sleep time, beam inactive time, de-activated time, or OFF-duration, among others. In certain implementations (e.g., varying traffic conditions) , the inactive time may be periodic; for example, the inactive time pattern can be certain / consistent over a relatively long time. In certain implementations, the inactive time may be aperiodic, such as when the traffic is unexpected / unpredictable, and no certain / consistent pattern can be maintained. In certain implementations, within the inactive time, the UE may not be expected to transmit and / or receive. In some implementations, the transmission and / or reception may be canceled. In some implementations, the transmission and / or reception may be postponed.
[0074] In certain implementations, the active time may include different categories, including, but not limited to, Type 1 and Type 2. In certain implementations, the category of the types can be based on at least one of the DL / UL configurations, the signal / channel (e.g., common or UE-specific) , or the beam width / type (e.g., narrow beam or wide beam) . In certain implementations, Type 1 or Type 2 can be associated with the control channel / signal, e.g., PDCCH reception (e.g., by the UE or wireless communication device) and / or PUCCH transmission (e.g., by the UE or wireless communication device) . In some implementations, Type 1 or Type 2 can be associated with the data / shared channel, e.g., the PDSCH reception and / or the PUSCH transmission. In certain implementations, for example, Type 1 can be associated with DCI reception, and / or Type 2 can be associated with PDSCH reception or PUSCH transmission. In certain implementations, for example, Type 1 can be associated with PDSCH reception, and / or Type 2 can be associated with HARQ ACK feedback transmission (e.g., by the UE or wireless communication device) .
[0075] In certain implementations, Type 1 or Type 2 can be associated with the reception of DL information (e.g., DCI, PDSCH, SSB, etc. ) (e.g., reception by the UE or wireless communication device) . In some implementations, Type 1 or Type 2 can be associated with the transmission of the UL signal (e.g., PUCCH, SRS, PUSCH, PRACH, etc. ) (e.g., transmission by the UE or wireless communication device) . In certain implementations, Type 1 or Type 2 can be associated with a wide beam, or Type 1 or Type 2 can be associated with a narrow beam. In certain implementations, Type 1 or Type 2 can be associated with the QCL relationship with a first type of RS, e.g., SSB, or Type 1 or Type 2 can be associated with the QCL relationship with a second type of RS, e.g., CSI-RS.
[0076] In certain implementations, one or various types of timing configurations can be defined, each with different behaviors or purposes. In certain implementations, the timing configuration may include a configuration of the time domain resource (e.g., start, duration) , during which the UE will perform DL reception or UL transmission. For example, Type-1 can be defined for UL transmission, and Type-2 can be defined for DL reception. In certain implementations, only one of these types of timing configurations can be defined, and the other / undefined type can be regarded as the default behavior or the normal assumption. In certain implementations, the reception of the control channel or PDCCH can be determined by the timing configuration indicated by a parameter name. This implies / indicates that other than the control channel or PDCCH, other signals or channels may follow legacy or default behavior. In certain implementations, the reception of the control channel, or PDCCH, which is quasi co-located (QCLed) with SSB-1, can follow the timing configuration as indicated by a parameter name. This implies / indicates that, other than the control channel or PDCCH that is QCLed with SSB-1, other signals or channels may follow legacy or default behavior. For example, the reception of DL signals or channels can be determined by the timing configuration as indicated by a parameter name. This implies that UL transmission may follow legacy or default behavior. In addition, it is to be noted that the descriptions of the aforementioned types are provided / configured merely as examples. There could be instances where one type or multiple types are defined. For example, this may include one type for a common control channel / signal, another type for a UE-specific control channel / signal, a type for group common data, a type for broadcast data, a type for UE-specific data, and so forth.
[0077] In certain implementations, when indicating active or inactive time, one or more of the following alternatives / implementations may be considered: Alt-1, which may include configuring the parameters for one of active or inactive time; Alt-2, which may include configuring the parameters for active or inactive times independently / separately; or Alt-3, which may include jointly configuring parameters to indicate the active and / or inactive time.
[0078] In certain implementations, the process of defining signaling to obtain one or more types of active / inactive time may include at least one of the following options / implementations. For instance, in certain options / implementations (such as Option 1) , the signaling can be explicitly indicated. Additionally, in certain implementations (e.g., a Sub-Case 0) , the index (es) and / or type can be included in the per-cell or per-UE configuration. For example, in certain implementations, the index of active / inactive time configuration may be included in at least one of following fields / parameters: ServingCellConfig, ServingCellConfigCommon, or ServingCellConfigCommonSIB.
[0079] In certain implementations, each index may refer to the configuration of active / inactive time configured by dedicated signaling (e.g., RRC or MAC CE) , where the configuration of active / inactive time may include at least one of a periodicity, an offset (e.g., ms level, slot offset, and / or symbol offset) , or a duration (e.g., ms level, slot level, and / or symbol level) of active time. In some implementations, periodicity and offset can be combined into one parameter. In certain implementations, the configuration of active / inactive time may be included in the same information element (IE) as the index, or the configuration of active / inactive time may be included in a separate IE from the index.
[0080] In certain implementations, for example, one type of active time can be used (or the usage of each type can be fixed) . In some implementations, {Index n} can be associated with all the UL / DL operation (s) of the UE; for example, the UL transmission and / or DL reception may follow the active time configuration with {Index n} . In certain implementations, {Type-X, Index n} can be associated with all the UL / DL operation (s) of the UE; for example, the UL transmission and / or DL reception may follow the active time configuration with {Type-X, Index n} . In certain implementations, for example, the paired time between different types can be configured as {Index m for Type-1, Index n for Type-2} . In some implementations, where the UE receives such configuration, the relevant behavior may follow the indication; for example, DL reception may follow the active time configuration with Index m for Type 1, and / or UL transmission may follow the active time configuration with Index n for Type 2.
[0081] In certain implementations (e.g., Sub-Case 1) , the index (es) and / or type can be included in the configuration of DL / UL; for example, the index of active / inactive time configuration for DL reception may be included in at least one of BWP-Downlink, BWP-DownlinkCommon, or BWP-DownlinkDedicated. In certain implementations, the index of active / inactive time configuration for UL transmission may be included in at least one of BWP-Uplink, BWP-UplinkCommon, or BWP-UplinkDedicated. In certain implementations, each index may refer to the configuration of active / inactive time configured by dedicated signaling (e.g., RRC or MAC CE) , where the configuration of active / inactive time may include at least one of a periodicity, an offset (e.g., ms level, slot offset, and / or symbol offset) , or a duration (e.g., ms level, slot level, and / or symbol level) of active time. In some implementations, periodicity and / or offset can be combined into one parameter. The configuration of active / inactive time may be included in the same IE as the index, or the configuration of active / inactive time may be included in a separate IE from the index.
[0082] In certain implementations, for example, the usage of each type can be fixed (e.g., DL / UL as described herein) . In certain implementations, one index can be associated with all the signals / channels / RS in DL reception, e.g., SSB, SIB, DCI, CSI-RS, or PDSCH. In certain implementations, another index can be associated with all the signals / channels / RS in UL transmission, e.g., PRACH, SRS, PUCCH, or PUSCH. In certain implementations, for example, the usage of each type can be fixed (e.g., DL / UL as described herein) . In certain implementations, a list of timing configurations (sometimes referred to as active / inactive time configurations) can be configured. Within each list, up to N configurations may be assumed, with each configuration corresponding to one signal / channel / RS. For example, in some implementations, {Index n} can be associated with the target channel / RS, e.g., {Index 1} is for PDSCH reception and / or {Index 3} is for CSI-RS reception. In certain implementations, for example, one or more lists of active / inactive time configurations can be configured (e.g., each list corresponding to one type) . Within each list, up to N configurations can be assumed, with each configuration corresponding to one signal / channel / RS. In certain implementations, {Type-X, Index n} can be associated with the target channel / RS, e.g., {Type-1, Index 1} is for PDSCH reception and / or {Type-2, Index 3} is for CSI-RS reception.
[0083] In certain implementations (e.g., Sub-Case 2) , the index (es) and / or type can be included in the configuration of a signal / channel / RS, e.g., the index of active / inactive time configuration for PDSCH reception may be included in at least one of PDSCH-Config, PDSCH-ConfigCommon, or PDSCH-ServingCellConfig. In certain implementations, the index of active / inactive time configuration for PDCCH reception may be included in at least one of following parameters / fields: PDCCH-Config, PDCCH-ConfigCommon, PDCCH-ConfigSIB1, or PDCCH-ServingCellConfig.
[0084] In certain implementations, the index of active / inactive time configuration for SRS transmission may be included in SRS-Config. In certain implementations, each index may refer to the configuration of active / inactive time configured by dedicated signaling (e.g., RRC or MAC CE) , where the configuration of active / inactive time may include at least one of a periodicity, an offset (e.g., ms level, slot offset, and / or symbol offset) , or a duration (e.g., ms level, slot level, and / or symbol level) of active time. In some implementations, periodicity and / or offset can be combined into one parameter. The configuration of active / inactive time may be included in the same IE as the index, or the configuration of active / inactive time may be included in a separate IE from the index.
[0085] In certain implementations, for example, one type of active time can be used (or the usage of each type can be fixed) . In certain implementations, {Index n} can be associated with the target signal / channel / RS, e.g., {Index 1} is for PDSCH reception and / or {Index 3} is for CSI-RS reception. In certain implementations, for example, {Type-X, Index n} can be associated with the target signal / channel / RS, e.g., {Type-1, Index 1} is for PDSCH reception and / or {Type-2, Index 3} is for CSI-RS reception.
[0086] In certain implementations (e.g., Sub-Case 3) , the signaling of active / inactive time can be included in the configuration of a transmission; for example, the parameters of active / inactive time configuration for a specific PDSCH reception can be included in the DCI scheduling the specific PDSCH reception. In certain implementations, the parameters of active / inactive time configuration for a specific PUSCH transmission can be included in the TDRA table in RRC signaling / configuration, which may be indicated by a TDRA field in the DCI scheduling the specific PUSCH transmission. In certain implementations, the parameters of active / inactive time configuration may include at least one of the following: an index, a start time (e.g., hyper SFN index, SFN index, slot index, symbol index, or ms) , a periodicity, an offset (e.g., ms level, slot offset, and / or symbol offset) , or a duration (e.g., ms level, slot level, and / or symbol level) of active time. In some implementations, periodicity and / or offset can be combined into one parameter.
[0087] In certain implementations, for example, when a DCI signaling schedules a PDSCH or a PUSCH transmission, an index can be included in the DCI signaling. The parameters, which may include at least one of a periodicity, an offset, or a duration, correspond to the configuration of active / inactive time and are included in the RRC signaling / configuration. In certain implementations, for example, when a DCI signaling schedules a PDSCH or a PUSCH transmission, an index can be included in the TDRA table (e.g., in each row) in RRC, and the TDRA field in the DCI can be used to indicate the corresponding index. The parameters, which may include at least one of a periodicity, an offset, or a duration, correspond to the configuration of active / inactive time and are included in the RRC. In certain implementations, for example, where a DCI signaling schedules a PDSCH or a PUSCH transmission, at least one of a start time, an end time, or a duration can be included in the DCI signaling. In certain implementations, for example, when a DCI signaling schedules a PDSCH or a PUSCH transmission, at least one of a start time, an end time, or a duration can be included in the TDRA table (e.g., in each row) in the RRC signaling / configuration. In some implementations, the TDRA field in the DCI signaling can be used to indicate the corresponding configuration of active / inactive time.
[0088] In certain implementations / options (e.g., Option 2) , the configuration (e.g., the beam level configuration) can be implicitly derived from another configuration. In certain implementations, for example, where one type is needed / required or the usage of each type for an RS is fixed, the reception of the DL signal may follow the configuration of active / inactive time associated with one type of RS, which can be considered the reference signal for quasi co-location (QCL) indication of a QCL relationship. In certain implementations, the transmission of the UL signal may follow the configuration of active / inactive time associated with another / different type of RS, which can be considered the reference signal for QCL indication.
[0089] In certain implementations, for example, where the CORESET (control resource set) is assumed to be QCLed with a RS, e.g., CSI-RS-X or SSB-X, which can be obtained in the TCI-state obtained via MAC CE, the reception of control signaling, e.g., DCI signaling, is to follow the active time / inactive time of the RS. In certain implementations, for example, where the PUCCH transmission is assumed to be QCLed with a RS, e.g., CSI-RS-X or SSB-X, which can be obtained via the spatial-relationship configuration or TCI indication, the transmission of the PUCCH is to follow the active time / inactive time of RS. In certain implementations, for example, where the PDSCH transmission is assumed to be QCLed with a RS, e.g., CSI-RS-X or SSB-X, which can be obtained in the TCI-state obtained via DCI or MAC CE, the reception of PDSCH is to follow the active time / inactive time of the RS. In certain implementations, for example, where the PUSCH transmission is assumed to be QCLed with a RS, e.g., CSI-RS-X or SSB-X, which can be obtained via the spatial-relationship configuration or TCI indication, the transmission of the PUSCH is to follow the active time / inactive time of the RS.
[0090] In certain implementations, beam hopping with an active time pattern can impact periodic signals, such as PRACH, SSB, configured grant PUSCH transmission, periodic SRS, periodic CSI-RS, or SPS transmission. In some implementations, an adjustment for the periodic signals could be that the occasion of the periodic signals is valid (e.g., the periodic signal can be transmitted by the BS or UE) if the occasion falls within the active time. Otherwise, the occasion is invalid (e.g., the BS or UE cannot or would not transmit the periodic signal) .
[0091] In certain embodiments, where the UE receives a first signal, the UE may determine the transmission / reception time of a second signal according to the reception time of the first signal and / or additional configuration (e.g., active / inactive time) . In certain implementations, the types of first signal and second signal may include at least one of the following combinations:
[0092] In certain implementations (e.g., Case 1) , the first signal and / or the second signal may share the same type of active time. In certain implementations (e.g., Case 1-1) , the first signal reception and / or the second signal transmission / reception can be within the same beam active time, as shown in FIG. 5. In certain implementations (e.g., Case 1-2) , the first signal reception can be within the first active time and / or the second signal transmission / reception can be at a second active time after a time interval between the end of the first active time and the start of the second active time, as shown in FIG. 6. In certain implementations, where the start time of the second signal is far away from the first signal, the original scheduling mechanism, such as k0, k1, or k2, may not cover the time duration between the two signals. As a result, an additional indication related to the time interval between the end of the first active time and the start of the second active time may be defined / required.
[0093] In certain implementations (e.g., Case 1-3) , the first signal reception and / or the first part of the second signal transmission / reception can be within the first beam active time. In certain implementations, the second part of the second signal transmission / reception can be at a different active time after a time interval between the end of the first active time and the start of the second active time, as shown in FIG. 7. In this regard, the examples may include, but are not limited to, DCI signaling scheduling one PUSCH transmission with multiple repetitions, DCI signaling scheduling one PDSCH transmission with multiple repetitions, DCI signaling scheduling multiple PUSCH transmissions, or DCI scheduling multiple PDSCH transmissions. In certain implementations, where the second signal is divided into two non-consecutive parts, the start time of the second part of the second signal is to be determined by considering the time interval between the end of the first active time and the start of the second active time.
[0094] In certain implementations (e.g., Case 2-1) , the Type 2 active time can be within the Type 1 active time. For example, within each activated wide beam, there may be one or more narrow beams. In certain implementations, as shown in FIG. 8, in a satellite, eight (or any number of positive integers) beams can be activated simultaneously, among which two beams can be wide beams and / or six beams can be narrow beams. In certain implementations, as shown in FIG. 9, within each active DL area, there can be one or more active UL areas.
[0095] In certain implementations (e.g., Case 2-1a) , the first signal reception and / or the second signal transmission / reception can be within the same Type 1 active time, as shown in FIG. 10. In such instances, the legacy scheduling mechanism can be reused. In certain implementations (e.g., Case 2-1b) , the first signal reception can be within a first Type 1 active time, and / or the second signal transmission / reception can be within a second Type 2 active time after a time interval between the end of the first Type 1 active time and the start of the second Type 2 active time, as shown in FIG. 11. In certain implementations, Case 2-1b may have a similar issue to that of Case 1-2. However, the difference is that in Case 2-1b, the start time of the second signal is to consider the time interval between the end of the first Type 1 active time and / or the start of the second Type 2 active time.
[0096] In certain implementations (e.g., Case 2-1c) , the first signal reception and / or the first part of the second signal transmission / reception can be within the first Type 1 active time, as shown in FIG. 12. In some implementations, the second part of the second signal transmission / reception can be in a second Type 2 active time, following a time interval between the end of the first Type 1 active time and / or the start of the second Type 2 active time. In certain implementations, Case 2-1c may have a similar issue to that of Case 1-3. However, the difference is that in Case 2-1c, the start time of the second part of the second signal is to consider the time interval between the end of the first Type 1 active time and the start of the second Type 2 active time.
[0097] In certain implementations (e.g., Case 2-2) , the Type 2 active time may not be within the Type 1 active time. For example, as shown in FIG. 13, the activated wide beams may not cover the activated narrow beams. In certain implementations, as shown in FIG. 14, the active DL area may not cover active UL areas.
[0098] In certain implementations (e.g., Case 2-2a) , the first signal reception can be within the Type 1 active time, and / or the second signal transmission / reception can be within the Type 2 active time, following a time interval between the end of the first Type 1 active time and the start of the first Type 2 active time, as shown in FIG. 15. In certain implementations, Case 2-2a may have a similar issue to that of Case 1-2. However, the difference is that in Case 2-2a, the start time of the second signal is to consider the time interval between the end of the first Type 1 active time and the start of the first Type 2 active time.
[0099] In certain implementations (e.g., Case 2-2b) , the first signal reception can be within the first Type 1 active time, and / or the first part of the second signal transmission / reception can be within the first Type 2 active time, following a first time interval between the end of the first Type 1 active time and the start of the first Type 2 active time, as shown in FIG. 16. In certain implementations, the second part of the second signal transmission / reception can be within the second Type 2 active time, following a second time interval between the start of the first Type 2 active time and the start of the second Type 2 active time. In certain implementations, Case 2-2b may have a similar issue to that of Case 1-3. However, the difference is that in Case 2-2b, the start time of the first part of the second signal is to consider the first time interval between the end of the first Type 1 active time and the start of the first Type 2 active time. In some implementations, the start time of the second part of the second signal is to consider the second time interval between the end of the first Type 2 active time and the start of the second Type 2 active time.
[0100] In certain implementations / option (e.g., Option 1) , the reception time of first signal can be restricted such that the transmission / reception time of the second signal in slot n+k is within the first active time, where n is the reception slot of first signal and k is the offset between first and second signals. In certain implementations, there may be an option to put some restrictions on the BS scheduling. For example, the BS is to guarantee that the transmission / reception time of the second signal is within the first active time so that the legacy scheduling mechanism can be reused to determine the transmission / reception time of the second signal. However, in certain implementations, the drawback may be that the aforementioned option reduces that scheduling complexity. Additionally, in some time division duplex (TDD) pattern (s) , it may not be possible for the transmission / reception time of the second signal to be within the first active time. In certain implementations, with Option 1, the potential cases can refer to Case 1-1 or Case 2-1a.
[0101] In certain implementations, there can be one or more combinations of the first signal and the second signal. In certain implementations (e.g., combination 1) , where the UE receives a DCI signaling for scheduling a PUSCH transmission, the DCI signaling can be restricted to the first several slots of active time so that the determined PUSCH transmission slot n+k2, based on the indicated offset k2 and the DCI signaling's reception slot n, is within the same active time in which the DCI signaling is received. In certain implementations (e.g., combination 2) , where the UE receives a DCI signaling for scheduling a PDSCH transmission, the DCI signaling can be restricted to the first several slots of active time so that the determined PDSCH transmission slot n+k0, based on the indicated offset k0 and the DCI reception slot n, is within the same active time in which the DCI is received. In certain implementations (e.g., combination 3) , where the UE receives the PDSCH transmission and transmits HARQ ACK feedback, the PDSCH reception can be restricted to the first several slots of active time so that the determined HARQ ACK feedback transmission slot n+k1, based on indicated offset k1 and the DCI reception slot n, is within the same active time in which the DCI signaling is received.
[0102] In certain implementations (e.g., Option 2) , the first slot of the second signal is in slot n+deltaK+k, where n is the last reception slot of the first signal and n+deltaK is the reference slot with the SCS configuration of the first signal. In some implementations, the definition of k can be changed to represent the offset between the reference slot and the first slot of the second signal. In certain implementations, FIG. 17 can illustrate an implementation based on Case 1-2, demonstrating the timing of Option 2, where k=a+b. Here, a and b are intermediate variables, a is the number of slots between the reception slot n and the end slot of the first active time, and b is the number of slots between the start slot of the second active time and the transmission / reception slot of the second signal. In certain implementations, with Option 2, the potential cases can refer to Case 1-2, Case 2-1b, or Case 2-2a. In Case 1-2, the length of deltaK is equal to the length of the time interval between the end of the first active time and the start of the second active time. In Case 2-1b, the length of deltaK is equal to the length of the time interval between the end of the first Type 1 active time and the start of the second Type 2 active time. In Case 2-2a, the length of deltaK is equal to the length of the time interval between the end of the first Type 1 active time and the start of the first Type 2 active time.
[0103] In certain implementations, where the pattern of active time is periodic, deltaK can be derived from at least one of a periodicity, an offset (in some implementations, periodicity and offset can be combined into one parameter) , or a duration of active / inactive time (or the pattern of active / inactive time) . In certain implementations, the parameters may be indicated in at least one of the system information, RRC signaling, or MAC CE signaling. In certain implementations, as shown in FIG. 18 based on Case 1, deltaK (or the time interval) can be equal to the periodicity of active time minus the duration of active time. In certain implementations, as shown in FIG. 19 based on Case 2-1, deltaK (or the time interval) can be equal to the periodicity of Type 2 active time minus the duration of Type 2 active time. In certain implementations, as shown in FIG. 20 based on Case 2-2, deltaK (or the time interval 1) can be equal to the offset between Type 1 and Type 2 active time minus the duration of Type 1 active time. In certain implementations, where the active time (or the pattern of active time) can be aperiodic, deltaK can be directly indicated in DCI signaling as a DCI field or indicated in the RRC parameter / signaling as part of the TDRA table. In certain implementations, deltaK can be equal to 0, with the condition that n+k is within the active time or the Type 2 active time.
[0104] In certain implementations, there may be one or more combinations of the first and second signals. In certain implementations (e.g., combination 1) , where the UE receives DCI signaling in slot n, the UE can transmit the first slot of the PUSCH transmission in slot n+deltaK+k2, where n is the reception slot of DCI signaling and n+deltaK is the reference slot with the SCS configuration of the DCI signaling. In certain implementations, the definition of k2 can be changed to represent the offset between the reference slot and the first slot of PUSCH transmission. In certain implementations (e.g., combination 2) , where the UE receives DCI signaling in slot n, the UE can receive the first slot of PDSCH in slot n+deltaK+k0, where n is the reception slot of DCI signaling and n+deltaK is the reference slot with the SCS configuration of the DCI signaling. In certain implementations, the definition of k0 can be changed to represent the offset between the reference slot and the first slot of PDSCH transmission. In certain implementations (e.g., combination 3) , where the UE receives the last slot of PDSCH transmission in slot n, the UE can transmit the first slot of PUCCH transmission (or HARQ ACK feedback) in slot n+deltaK+k1, where n is the last reception slot of PDSCH transmission and n+deltaK is the reference slot with the SCS configuration of PDSCH transmission. In certain implementations, the definition of k1 can be changed to represent the offset between the reference slot and the first slot of PUCCH transmission.
[0105] In certain implementations / options (e.g., Option 3) , the first slot of the second signal can be in slot n+k+deltaK, where n is the last reception slot of the first signal and slot n+k is the reference slot. In certain implementations, the definition of k can be changed to represent the offset between the slot n and the reference slot. In certain implementations, deltaK can be defined as representing the offset between the reference slot and the first slot of the second signal, with the SCS configuration of the second signal.
[0106] In certain implementations, as shown in FIG. 21 based on Case 1-2, illustrating the timing of Option 3, where k=a+b. Here, a and b are intermediate variables, a is the number of slots between the reception slot n and the end slot of the first active time, and b is the number of slots between the start slot of the second active time and the transmission / reception slot of the second signal. In certain implementations, with Option 3, the potential cases can refer to Case 1-2, Case 2-1b, or Case 2-2a, similar to those described herein for Option 2.
[0107] In certain implementations, there may be one or more combinations of the first and second signals. In certain implementations (e.g., combination 1) , where UE receives DCI signaling in slot n, the UE can transmit the first slot of PUSCH transmission in slot n+deltaK+k2, where n is the reception slot of DCI signaling and slot n+k2 is the reference slot. In certain implementations, the definition of k2 can be changed to represent the offset between the slot n and the reference slot. In certain implementations, deltaK can be defined as representing the offset between the reference slot and the first slot of second signal, with the SCS configuration of PUSCH. In certain implementations (e.g., combination 2) , where UE receives DCI signaling in slot n, the UE can receive the first slot of PDSCH transmission in slot n+deltaK+k0, where n is the reception slot of DCI signaling and slot n+k0 is the reference slot. In certain implementations, the definition of k0 can be changed to represent the offset between the slot n and the reference slot. In certain implementations, deltaK can be defined as representing the offset between the reference slot and the first slot of the second signal, with the SCS configuration of PDSCH transmission. In certain implementations (e.g., combination 3) , where UE receives the last slot of PDSCH transmission in slot n, the UE can transmit the first slot of PUCCH transmission (or HARQ ACK feedback) in slot n+deltaK+k1, where n is the last reception slot of PDSCH transmission and slot n+k1 is the reference slot. In certain implementations, the definition of k1 can be changed to represent the offset between the slot n and the reference slot. In certain implementations, deltaK can be defined as representing the offset between the reference slot and the first slot of the second signal, with the SCS configuration of PUCCH transmission.
[0108] In certain implementations / options (e.g., Option 4) , where the first slot of the first part of the second signal is in slot n+k, the first slot of the second part of second signal can be in slot n+k+deltaK+deltaN, where n is the last reception slot of the first signal and slot n+k is the reference slot. In certain implementations, the definition of k can be changed to represent the offset between the slot n and the reference slot. In certain implementations, deltaN can be the number of slots in the first part of the second signal. In certain implementations, deltaN+deltaK can be defined as representing the offset between the reference slot and the first slot of the second part of second signal, with the SCS configuration of the second signal.
[0109] In certain implementations, as shown in FIG. 22 based on Case 1-3, illustrating the timing of Option 4, the potential cases can refer to Case 1-3 or Case 2-1c. In Case 1-3, the length of deltaK is equal to the length of the time interval between the end of the first active time and the start of the second active time. In Case 2-1c, the length of deltaK is equal to the length of the time interval between the end of the first Type 1 active time and the start of the second Type 2 active time. In certain implementations, the factors determining deltaK can be the same as those described for Option 2. In certain implementations, where one repetition crosses the boundary of the active time’s end, the repetition may not be included in the first part of the second signal, and the corresponding slot may not be counted in deltaN. In certain implementations, where one PUSCH / PDSCH transmission in multi-PUSCH / PDSCH scheduling crosses the boundary of the active time’s end, the PUSCH / PDSCH transmission may not be included in the first part of the second signal, and the corresponding slot may not be counted in deltaN.
[0110] In certain implementations, there may be one or more combinations of the first and second signals. In certain implementations (e.g., combination 1) , where UE receives DCI in slot n, the UE can transmit the first slot of the first part of PUSCH transmission in slot n+k. In some implementations, the UE can transmit the first slot of the second part of PUSCH in slot n+k2+deltaK+deltaN, where n is the reception slot of DCI and slot n+k2 is the reference slot. In some implementations, the definition of k2 can be changed to represent the offset between the slot n and the reference slot. In some implementations, deltaN can be the number of slots in the first part of PUSCH transmission, and deltaN+deltaK can be defined as representing the offset between the reference slot and the first slot of the second part of PUSCH, with the SCS configuration of PUSCH transmission.
[0111] In certain implementations (e.g., combination 1) , where UE receives DCI in slot n, the UE can receive the first slot of the first part of PDSCH transmission in slot n+k. In some implementations, the UE can receive the first slot of the second part of PDSCH transmission in slot n+k0+deltaK+deltaN, where n is the reception slot of DCI and slot n+k0 is the reference slot. In some implementations, the definition of k0 can be changed to represent the offset between the slot n and the reference slot. In some implementations, deltaN is the number of slots in the first part of the second signal, and deltaN+deltaK can be defined as representing the offset between the reference slot and the first slot of the second part of PDSCH, with the SCS configuration of PDSCH.
[0112] In certain implementations / options (e.g., Option 5) , where the first slot of the first part of second signal is in slot n+k+deltaK1, the first slot of the second part of second signal can be in slot n+k+deltaK1+deltaN+deltaK2, where n is the last reception slot of first signal and slot n+k is the reference slot. In some implementations, the definition of k can be changed to represent the offset between the slot n and the reference slot. In some implementations, deltaK1 can be the offset between the reference slot and the first slot of the first part of second signal, with the SCS configuration of the second signal. In some implementations, deltaN can be the number of slots in the first part of second signal. In some implementations, deltaK1+deltaN+deltaK2 can be defined as representing the offset between the reference slot and the first slot of the second part of second signal, with the SCS configuration of the second signal.
[0113] In certain implementations, as shown in FIG. 23, based on Case 2-2b illustrating the timing of Option 5, the potential cases can refer to Case 2-2b. In Case 2-2b, the length of deltaK1 is equal to the length of the first time interval between the end of the first Type 1 active time and the start of the first Type 2 active time. In Case 2-2b, the length of deltaK2 can be equal to the length of the second time interval between the end of the first Type 2 active time and the start of the second Type 2 active time.
[0114] In certain implementations, where the active time (or the pattern of active time) is periodic, deltaK1 and deltaK2 can be derived from at least one of the following: a periodicity of Type 1 active time, a periodicity of Type 2 active time, an offset between Type 1 and Type 2 active time (in some implementations, periodicity and offset are combined into one parameter) , a duration of Type 1 active time, or a duration of Type 2 active time. In certain implementations, the parameters can be indicated in at least one of the system information, RRC signaling, or MAC CE signaling. In certain implementations, as shown in FIG. 24, based on Case 2-2b, deltaK1 (or the time interval 1) can be equal to the offset between Type 1 and Type 2 active time minus the duration of Type 1 active time. In certain implementations, based on Case 2-2b, deltaK2 (or the time interval 2) can be equal to the periodicity of Type 2 active time minus the duration of Type 2 active time. In certain implementations, where the active time (or the pattern of active time) is aperiodic, deltaK1 and deltaK2 can be directly indicated in DCI signaling as one or more DCI fields or indicated in one or more RRC parameters as part of the TDRA table.
[0115] In certain implementations, there may be one or more combinations of the first and second signals. In certain implementations (e.g., combination 1) , where the UE receives DCI signaling in slot n, the UE can transmit the first slot of the first part of PUSCH transmission in slot n+k2+deltaK1. In some implementations, the UE can transmit the first slot of the second part of PUSCH transmission in slot n+k2+deltaK1+deltaN+deltaK2, where n is the last reception slot of DCI and slot n+k2 is the reference slot. In some implementations, the definition of k2 can be changed to represent the offset between the slot n and the reference slot. In some implementations, deltaK1 can be the offset between the reference slot and the first slot of the first part of PUSCH transmission, with the SCS configuration of PUSCH transmission. In some implementations, deltaN can be the number of slots in the first part of PUSCH transmission, and deltaK1+deltaN+deltaK2 can be defined as representing the offset between the reference slot and the first slot of the second part of PUSCH transmission, with the SCS configuration of PUSCH.
[0116] In certain implementations (e.g., combination 2) , where the UE receives DCI signaling in slot n, the UE can receive the first slot of the first part of PDSCH transmission in slot n+k0+deltaK1. In some implementations, the UE can receive the first slot of the second part of PDSCH transmission in slot n+k0+deltaK1+deltaN+deltaK2, where n is the last reception slot of DCI transmission and slot n+k0 is the reference slot. In some implementations, the definition of k0 can be changed to represent the offset between the slot n and the reference slot. In some implementations, deltaK1 can be the offset between the reference slot and the first slot of the first part of PDSCH transmission, with the SCS configuration of PDSCH transmission. In some implementations, deltaN can be the number of slots in the first part of PDSCH transmission. In some implementations, deltaK1+deltaN+deltaK2 can be defined as representing the offset between the reference slot and the first slot of the second part of PDSCH, with the SCS configuration of PDSCH transmission.
[0117] Referring now to FIG. 25, which illustrates a flow diagram of a method 2500 for performing downlink / uplink operations. The method 2500 may be implemented using any of the components and devices detailed herein in conjunction with FIGS. 1 to 24. In an overview, the method 2500 may include a wireless communication device determining a timing configuration (STEP 2502) . The method may include the wireless communication device performing a transmission or reception of a signal according to the timing configuration (STEP 2504) .
[0118] In certain configurations, a wireless communication device (e.g., UE) can determine a timing configuration (STEP 2502) . In certain configurations, the wireless communication device can perform a transmission or reception of a signal according to the timing configuration (STEP 2504) . In certain configurations, the wireless communication device can determine a reception of a first signal. In some implementations, the wireless communication device can determine a transmission or reception time of a second signal, including the signal, according to the reception time of the first signal and / or the timing configuration.
[0119] In certain configurations, the timing configuration may include a plurality of parameters of at least one of the following: an active time or an inactive time, associated with the wireless communication device or a cell. In some implementations, the plurality of parameters may include at least one of the following: a periodicity, an offset, a start time, or a duration, related to the active time or the inactive time. In certain configurations, the periodicity, the start time, the offset, or the duration can be indicated at a granularity, unit and / or level of millisecond, slot, or symbol. In certain configurations, the timing configuration may include at least one of the following: at least one parameter of one of the active time or the inactive time; at least one parameter of the active time and at least one parameter of the inactive time, independently / separately configured; or at least one parameter of the active time and at least one parameter of the inactive time, jointly configured.
[0120] In certain configurations, the wireless communication device can determine the timing configuration via (e.g., via receiving a signaling that indicates the type and / or index) at least one of the following: a type or an index of the timing configuration. In certain configurations, the type may include type 1 or type 2, where type 1 and type 2 can be respectively associated with at least one of the following: a control channel or signal; a data or shared channel or signal; common or cell-specific data or signal; user equipment (UE) -specific data or signal; reception of downlink information or signal; transmission of uplink information or signal; wide beam; narrow beam; quasi co-location (QCL) relationship with a first type of reference signal; or QCL relationship with a second type of reference signal.
[0121] In certain configurations, the wireless communication device can receive one or more candidate timing configurations via a first signaling (e.g., RRC or MAC CE signaling) from a wireless communication node (e.g., BS) . In some implementations, the wireless communication device can receive an indication of the timing configuration, from the one or more candidate timing configurations, from the wireless communication node via a second signaling. In certain configurations, the second signaling may include an indication of at least one of the following: the type or the index of the timing configuration.
[0122] In certain configurations, the indication may include at least one of the following: at least one cell-specific parameter or at least one user equipment (UE) specific parameter (e.g., ServingCellConfig, ServingCellConfigCommon, ServingCellConfigCommonSIB) ; at least one UE group specific parameter; at least one uplink (UL) parameter (e.g., BWP-Uplink, BWP-UplinkCommon, BWP-UplinkDedicated) or at least one downlink (DL) parameter (e.g., BWP-Downlink, BWP-DownlinkCommon, BWP-DownlinkDedicated) ; at least one parameter (e.g., the index of active / inactive time configuration for PDCCH reception may be included in at least one of PDSCH-Config, PDSCH-ConfigCommon, PDSCH-ServingCellConfig; the index of active / inactive time configuration for PDCCH reception may be included in at least one of PDCCH-Config, PDCCH-ConfigCommon, PDCCH-ConfigSIB1, PDCCH-ServingCellConfig; the index of active / inactive time configuration for SRS transmission may be included in SRS-configuration) of a signal, channel or reference signal; or at least one parameter of a transmission.
[0123] In certain configurations, each group corresponding to at least one UE group-specific parameter can be determined by at least one of the following: UE reported location; a beam provided / applied / allocated / used in the initial access stage; or a synchronization signal block (SSB) index to obtain a master information block (MIB) in the initial access stage. In certain configurations, the indication may include an identifier (ID) of a group of UEs, or the indication may include at least one UE group-specific parameter for a plurality of groups of UEs indicated sequentially in one or more fields.
[0124] In certain configurations, the one or more candidate timing configurations may include at least one of the following: a first timing configuration associated with all signals, channels, or reference signals in downlink reception, and / or a second timing configuration associated with all signals, channels, or reference signals in uplink transmission; a plurality of timing configurations each associated with a respective signal, channel, or reference signal; or a plurality of lists of timing configurations, with each timing configuration associated with a respective signal, channel, or reference signal.
[0125] In certain configurations, at least one parameter of the transmission may include at least one of the following: an index, a start time, a periodicity, an offset, or a duration, related to the active time or the inactive time. In certain configurations, a downlink control information (DCI) scheduling a transmission may indicate at least one of the following: an index of the timing configuration, where at least one parameter of the timing configuration is configured via a radio resource control (RRC) signaling; an index of the timing configuration via a time domain resource allocation (TDRA) field of the DCI signaling, where at least one parameter of the timing configuration is configured via an RRC signaling; at least one parameter of the timing configuration; or an index of the timing configuration via a TDRA field of the DCI signaling, where at least one parameter of the timing configuration is configured via a TDRA table in an RRC signaling.
[0126] In certain configurations, the wireless communication device can determine the timing configuration for the second signal according to the timing configuration of a reference signal that has a quasi co-location (QCL) relationship with the second signal. In certain configurations, where the signal is a periodic signal, an occasion of the signal can be valid if the occasion is within the active time associated with the timing configuration.
[0127] In certain configurations, the reception time of the first signal and the transmission or reception time of the second signal in slot n+k can be within the same active time. In some implementations, n indicates a slot number of a reception slot of the first signal, and / or k is an offset between the first signal and the second signal. In certain configurations, the first slot of the second signal can be within the slot n+deltaK+k. In some implementations, n indicates a slot number of the last reception slot of the first signal, deltaK is an offset component where n+deltaK indicates a reference slot with subcarrier spacing (SCS) configuration of the first signal, and / or k is an offset between the reference slot and the first slot of the second signal.
[0128] In certain configurations, a first slot of the second signal can be within slot n+k+deltaK, where n indicates a slot number of a last reception slot of the first signal, n+k is indicates a reference slot, k is an offset between the last reception slot of the first signal and the reference slot, and / or deltaK is an offset between the reference slot and the first slot of the second signal with a subcarrier spacing (SCS) configuration of the second signal.
[0129] In certain configurations, where the transmission or reception of the second signal is performed within one or more active times, e.g., across 2 different active times, the first part of the second signal is in a first active time and / or the second part of the second signal is in a second active time. In certain implementations, the transmission or reception time of the first part of the second signal can be determined by the reception time of the first signal. In certain implementations, a first slot of a first part of the second signal can be within slot n+k, where n indicates a slot number of a last reception slot of a first signal and k is an offset between the last reception slot of the first signal and the first slot of the first part of the second signal.
[0130] In certain configurations, the first slot of the second part of the second signal can be in slot n +K_offset, wherein n is the last slot for the transmission or reception of the first part of second signal and the K_offset is determined by the timing configuration from the wireless communication node. In certain implementations, the first slot of the second part of the second signal can be in slot n, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal. In certain implementations, the first slot of the second part of the second signal can be in the slot n+offset, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal, and / or offset can be determined by the timing configuration from the wireless communication node or the capability report of the wireless communication device.
[0131] In certain configurations, a first slot of a second part of the second signal can be within slot n+k+deltaK+deltaN, where n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between the last reception slot of the first signal and the reference slot, deltaN is a number of slots in the first part of the second signal, and / or deltaK is an offset component wherein deltaN+deltaK is an offset between the reference slot and the first slot of the second part of the second signal with a subcarrier spacing (SCS) configuration of the second signal.
[0132] In certain configurations, deltaK can be determined using at least one of the following: a periodicity, an offset, or a duration of the active time, where the periodicity, the offset, or the duration of the active time can be indicated in at least one of system information, a radio resource control signaling, or a medium access control control element (MAC CE) signaling. In some implementations, deltaK is indicated in a field of downlink control information (DCI) signaling, or in a parameter of a radio resource control (RRC) signaling. In some implementations, deltaK is equal to 0. In certain configurations, deltaK may be equal to at least one of the following: a periodicity of the active time minus a duration of the active time; a periodicity of a Type 2 active time minus a duration of the Type 2 active time; or an offset between a start point of a Type 1 active time and a start point of a Type 2 active time, minus a duration of the Type 1 active time.
[0133] In certain implementations, the transmission or reception of the second signal can be performed at a different active time from the reception of first signal. In certain implementations, where the transmission or reception of the second signal is performed within one or more active times, e.g., across 2 different active times, the first part of the second signal can be in a first active time and / or the second part of second signal can be in a second active time. In certain implementations, the transmission or reception time of the first part of the second signal can be determined by the reception time of the first signal. In certain implementations, a first slot of a first part of the second signal can be in slot n+k+deltaK1, where at least one of: n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between slot n and the reference slot, and deltaK1 is an offset between the reference slot and the first slot of the first part of the second signal.
[0134] In certain implementations, the first slot of the second part of the second signal can be in slot n +K_offset, where n is the last slot for the transmission or reception of the first part of the second signal and the K_offset is determined by the timing configuration from the wireless communication node. In certain implementations, the first slot of the second part of the second signal can be in slot n, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal. In certain implementations, the first slot of the second part of the second signal can be in the slot n+offset, where n is the first available slot for the transmission or reception in the active time after the first part of the second signal and / or offset is determined by the timing configuration from the wireless communication node or the capability report of the wireless communication device.
[0135] In certain configurations, a first slot of a second part of the second signal can be within slot n+k+deltaK1+deltaN+deltaK2, where n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between slot n and the reference slot, deltaK1 is an offset between the reference slot and the first slot of first part of the second signal with a subcarrier spacing (SCS) configuration of the second signal, deltaN is a number of slots in the first part of the second signal, and / or deltaK2 is an offset component where deltaK1+deltaN+deltaK2 is an offset between the reference slot and the first slot of the second part of the second signal with a SCS configuration of the second signal.
[0136] In certain configurations, each of deltaK1 and deltaK2 can be determined using at least one of the following: a periodicity of Type 1 active time, a periodicity of Type 2 active time, an offset between a start point of the Type 1 active time and a start point of the Type 2 active time, a duration of the Type 1 active time, or a duration of the Type 2 active time, one or more of which may be indicated in at least one of the following: system information, a radio resource control signaling, or a medium access control control element (MAC CE) signaling. In some implementations, deltaK1 and deltaK2 can be indicated in one or more fields of downlink control information (DCI) signaling or in one or more parameters of a radio resource control (RRC) signaling.
[0137] In certain configurations, deltaK1 can be equal to an offset between a start point of the Type 1 active time and a start point of the Type 2 active time, minus a duration of the Type 1 active time. In certain implementations, deltaK2 can be equal to a periodicity of the Type 2 active time minus a duration of the Type 2 active time. In certain configurations, where a repetition crosses a boundary of an end of the active time, the repetition may not be included in the first part of the second signal, and / or a slot corresponding to the repetition may not be counted in deltaN.
[0138] While various embodiments / implementations of the present solution have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. Likewise, the various diagrams may depict an example architecture or configuration, which are provided to enable persons of ordinary skill in the art to understand example features and functions of the present solution. Such persons would understand, however, that the solution is not restricted to the illustrated example architectures or configurations but can be implemented using a variety of alternative architectures and configurations. Additionally, as would be understood by persons of ordinary skill in the art, one or multiple features of one embodiment / implementation can be combined with one or multiple features of another embodiment / implementation described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative embodiments.
[0139] It is also understood that any reference to an element herein using a designation such as “first, ” “second, ” and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.
[0140] Additionally, a person having ordinary skill in the art would understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols, which may be referenced in the above description, can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0141] A person of ordinary skill in the art would further appreciate that any of the various illustrative logical blocks, modules, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as “software” or a “software module) , or any combination of these techniques. To clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, modules, circuits, and steps have been 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 upon the particular application and design constraints imposed on the overall system. Skilled artisans can 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.
[0142] Furthermore, a person of ordinary skill in the art would understand that various illustrative logical blocks, modules, devices, components, and circuits described herein can be implemented within or performed by an integrated circuit (IC) that can 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 logical blocks, modules, and circuits can further include antennas and / or transceivers to communicate with various components within the network or within the device. A general purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or multiple microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.
[0143] If implemented in software, the functions can be stored as one or multiple instructions or code 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 media can be any available media 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.
[0144] 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 purpose of discussion, the various modules are described as discrete modules; however, as would be apparent to one of ordinary skill in the art, two or more modules may be combined to form a single module that performs the associated functions according to embodiments of the present solution.
[0145] Additionally, memory or other storage, as well as communication components, may be employed in embodiments of the present solution. It will be appreciated that, for clarity purposes, the above description has described embodiments of the present 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 detracting from the present solution. For example, functionality illustrated to be performed by separate processing logic elements, or controllers, may be performed by the same processing logic element, or controller. Hence, references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.
[0146] Various modifications to 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 this disclosure. Thus, the disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims below.
Claims
1.A method comprising:determining, by a wireless communication device, a timing configuration; andperforming, by the wireless communication device, a transmission or reception of a signal, according to the timing configuration.2.The method of claim 1, wherein at least one of:the timing configuration comprises a plurality of parameters of at least one of: an active time or an inactive time, associated with the wireless communication device or a cell; orthe plurality of parameters comprises at least one of: a periodicity, an offset, a start time or a duration, of the active time or the inactive time, wherein the at least one of: the periodicity, the start time, the offset or the duration, is indicated at a granularity or level of millisecond, slot or symbol.3.The method of claim 1, wherein the timing configuration comprises:at least one parameter of the active time or the inactive time;at least one parameter of the active time, and at least one parameter of the inactive time, independently configured; orat least one parameter of the active time, and at least one parameter of the inactive time, jointly configured.4.The method of claim 1, comprising:determining, by the wireless communication device, the timing configuration via at least one of: a type or an index of the timing configuration.5.The method of claim 4, wherein the type comprises type 1 or type 2, wherein type 1 and type 2 are respectively associated with at least one of:a control channel or signal; and a data or shared channel or signal;common or cell-specific data or signal; and user equipment (UE) specific data or signal;reception of downlink information or signal; and transmission of uplink information or signal;wide beam; and narrow beam;quasi co-location (QCL) relationship with a first type of reference signal; and QCL relationship with a second type of reference signal.6.The method of claim 4, comprising at least one of:receiving, by the wireless communication device via a first signaling from a wireless communication node, one or more candidate timing configurations; orreceiving, by the wireless communication device via a second signaling from the wireless communication node, an indication of the timing configuration, from the one or more candidate timing configurations.7.The method of claim 6, wherein the second signaling comprises an indication of at least one of: the type or the index of the timing configuration.8.The method of claim 7, wherein the indication comprises at least one of:at least one cell-specific parameter or at least one user equipment (UE) specific parameter;at least one UE group specific parameter;at least one uplink (UL) parameter or at least one downlink (DL) parameter;at least one parameter of a signal, channel or reference signal;at least one parameter of a transmission.9.The method of claim 8, wherein each group corresponding to each of the at least one UE group specific parameter, is determined by at least one of:UE reported location;a beam used in initial access stage; ora synchronization signal block (SSB) index to obtain a master information block (MIB) in the initial access stage.10.The method of claim 8, wherein at least one ofthe indication comprises an identifier (ID) of a group of UEs; orthe indication comprises at least one UE group specific parameter for a plurality of groups of UEs indicated sequentially in one or more fields.11.The method of claim 6, wherein the one or more candidate timing configurations comprises at least one of:a first timing configuration associated with all signals, channels or reference signals in downlink reception, and a second timing configuration associated with all signals, channels or reference signals in uplink transmission;a plurality of timing configurations each associated with a respective signal, channel or reference signal; ora plurality of lists of timing configurations, each timing configuration associated with a respective signal, channel or reference signal.12.The method of claim 8, wherein the at least one parameter of the transmission comprises at least one of: an index, a start time, a periodicity, an offset or a duration, of the active time or the inactive time.13.The method of claim 12, wherein a downlink control information (DCI) scheduling a transmission indicates at least one of:an index of the timing configuration, wherein at least one parameter of the timing configuration is configured via a radio resource control (RRC) signaling;an index of the timing configuration via a time domain resource allocation (TDRA) field of the DCI signaling, wherein at least one parameter of the timing configuration is configured via a RRC signaling;at least one parameter of the timing configuration; oran index of the timing configuration via a TDRA field of the DCI signaling, wherein at least one parameter of the timing configuration is configured via a TDRA table in a RRC signaling.14.The method of claim 1, comprising:determining, by the wireless communication device, the timing configuration for the signal, according to a timing configuration of a reference signal that has a quasi co-location (QCL) relationship with the signal.15.The method of claim 1, wherein the signal is a periodic signal, an occasion of the signal is valid if the occasion is within the active time associated with the timing configuration.16.The method of claim 1, comprising:determining, by the wireless communication device, a reception of a first signal; anddetermining, by the wireless communication device, a transmission or reception time of a second signal comprising the signal, according to: (i) the reception time of the first signal, and (ii) the timing configuration.17.The method of claim 16, wherein a reception time of the first signal and a transmission or reception time of the second signal in slot n+k are within a same active time,wherein at least one of: n indicates a slot number of a reception slot of the first signal, or k is an offset between the first signal and the second signal.18.The method of claim 16, wherein a first slot of the second signal is in slot n+deltaK+k, wherein at least one of: n indicates a slot number of a last reception slot of the first signal, deltaK is an offset component wherein n+deltaK indicates a reference slot with subcarrier spacing (SCS) configuration of the first signal, or k is an offset between the reference slot and the first slot of the second signal.19.The method of claim 16, wherein a first slot of the second signal is in slot n+k+deltaK, wherein at least one of: n indicates a slot number of a last reception slot of the first signal, n+k is indicates a reference slot, k is an offset between the last reception slot of the first signal and the reference slot, or deltaK is an offset between the reference slot and the first slot of the second signal with a subcarrier spacing (SCS) configuration of the second signal.20.The method of claim 16, wherein at least one of:the transmission or reception of the second signal is performed within one or more active time;the transmission or reception time of the first part of second signal is determined by the reception time of the first signal;the first slot of the first part of the second signal is in slot n+k, wherein n indicates a slot number of a last reception slot of a first signal, k is an offset between the last reception slot of the first signal and the first slot of the first part of the second signal; orthe transmission or reception time of the second part of second signal is determined by at least one of:the first slot of the second part of the second signal is in slot n+k+deltaK+deltaN, wherein at least one of: n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between the last reception slot of the first signal and the reference slot, deltaN is a number of slots in first part of the second signal, or deltaK is an offset component wherein deltaN+deltaK is an offset between the reference slot and the first slot of the second part of the second signal with a subcarrier spacing (SCS) configuration of the second signal;the first slot of the second part of the second signal is in slot n + K_offset, wherein n is the last slot for the transmission or reception of the first part of second signal and the K_offset is determined by the timing configuration from wireless communication node;The first slot of the second part of the second signal is in the slot n, wherein n is the first available slot for the transmission or reception in the active time after the first part of second signal; orthe first slot of the second part of the second signal is in the slot n+offset, wherein n is the first available slot for the transmission or reception in the active time after the first part of second signal and offset is determined by the timing configuration from wireless communication node or the capability report of wireless communication device.21.The method of any one of claims 18 to 20, wherein at least one of:deltaK is determined using at least one of a periodicity, an offset or a duration of the active time, wherein the at least one of the periodicity, the offset or the duration of the active time, is indicated in at least one of system information, a radio resource control signaling or a medium access control control element (MAC CE) signaling;deltaK is indicated in a field of downlink control information (DCI) signaling, or in a parameter of a radio resource control (RRC) signaling; ordeltaK is equal to 0.22.The method of any one of claims 18 to 20, wherein deltaK is equal to at least one of:a periodicity of the active time minus a duration of the active time;a periodicity of a Type 2 active time minus a duration of the Type 2 active time; oran offset between a start point of a Type 1 active time and a start point of a Type 2 active time, minus a duration of the Type 1 active time.23.The method of claim 16, wherein at least one of:the transmission or reception of the second signal is performed within a different active time from the reception of first signal;the transmission or reception of the second signal is performed within one or more active time;the transmission or reception time of the first part of second signal is determined by the reception time of the first signal;a first slot of a first part of the second signal is in slot n+k+deltaK1, wherein at least one of: n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between slot n and the reference slot, deltaK1 is an offset between the reference slot and the first slot of first part of the second signal; orthe transmission or reception time of the second part of second signal is determined by at least one of:a first slot of a second part of the second signal is in slot n+k+deltaK1+deltaN+deltaK2, wherein at least one of: n indicates a slot number of a last reception slot of a first signal, slot n+k is a reference slot, k is an offset between slot n and the reference slot, deltaK1 is an offset between the reference slot and the first slot of first part of the second signal with a subcarrier spacing (SCS) configuration of the second signal, deltaN is a number of slots in the first part of the second signal, or deltaK2 is an offset component wherein deltaK1+deltaN+deltaK2 is an offset between the reference slot and the first slot of the second part of the second signal with a SCS configuration of the second signal;the first slot of the second part of the second signal is in slot n + K_offset, wherein n is the last slot for the transmission or reception of the first part of second signal and the K_offset is determined by the timing configuration from wireless communication node;The first slot of the second part of the second signal is in the slot n, wherein n is the first available slot for the transmission or reception in the active time after the first part of second signal; orthe first slot of the second part of the second signal is in the slot n+offset, wherein n is the first available slot for the transmission or reception in the active time after the first part of second signal and offset is determined by the timing configuration from wireless communication node or the capability report of wireless communication device.24.The method of claim 23, wherein at least one of:each of deltaK1 and deltaK2 is determined using at least one of a periodicity of Type 1 active time, a periodicity of Type 2 active time, an offset between a start point of the Type 1 active time and a start point of the Type 2 active time, a duration of the Type 1 active time or a duration of the Type 2 active time, one or more of which are indicated in at least one of system information, a radio resource control signaling or a medium access control control element (MAC CE) signaling; ordeltaK1 and deltaK2 are indicated in one or more fields of downlink control information (DCI) signaling, or in one or more parameters of a radio resource control (RRC) signaling.25.The method of claim 23, wherein at least one of:deltaK1 is equal to an offset between a start point of the Type 1 active time and a start point of the Type 2 active time, minus a duration of the Type 1 active time; ordeltaK2 is equal to a periodicity of the Type 2 active time minus a duration of the Type 2 active time.26.The method of claim 20 or 23, wherein when a repetition crosses a boundary of an end of the active time, the repetition is not included in the first part of the second signal, and a slot corresponding to the repetition is not counted in deltaN.27.A non-transitory computer readable medium storing instructions, which when executed by at least one processor, cause the at least one processor to perform the method of any one of claims 1 to 26.28.An apparatus comprising:at least one processor configured to perform the method of any one of claims 1 to 26.
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