Systems and methods for signal transmission and reception

Abstract

Systems and methods for signal transmission and reception are presented. A wireless communication device can receive at least one configuration from a wireless communication node via first signaling. The wireless communication device can determine to receive a signal from the wireless communication node in accordance with the at least one configuration.

Description

Technical Field

[0001] This disclosure relates generally to wireless communications, including but not limited to systems and methods for signal transmission and reception. Background Technology

[0002] The Third Generation Partnership Project (3GPP), a standards organization, is currently specifying a new radio interface called 5G New Radio (5G NR) and a Next Generation Packet Core Network (NG-CN or NGC). 5G NR will have three main components: the 5G Access Network (5G-AN), the 5G Core Network (5GC), and User Equipment (UE). To facilitate the implementation of different data services and requirements, the elements of 5GC (also known as network functions) have been simplified, some software-based and some hardware-based, allowing for adaptation as needed. Satellite communication is one of the typical scenarios for non-terrestrial networks in 3GPP standardization. Furthermore, satellites will play an increasingly important role in providing the coverage and resilience of 6G. In 6G research, RIS (Radio Reliability and Energy Efficiency) is another important topic, providing a way to control surfaces in the radio channel by orienting them in a specific direction to improve the reliability and energy efficiency of the wireless system. Summary of the Invention

[0003] The exemplary embodiments disclosed herein are intended to address problems related to one or more issues existing in the prior art, and to provide additional technical features that will become apparent when taken in conjunction with the accompanying drawings and the following detailed description. Exemplary systems, methods, apparatuses, and computer program products are disclosed herein according to various embodiments. However, it should be understood that these embodiments are presented by way of example and not as limiting, and that various modifications may be apparent to those skilled in the art who read this disclosure while remaining within the scope of this disclosure.

[0004] At least one aspect relates to a system, method, apparatus, or computer-readable medium that includes the following: A wireless communication device may receive at least one configuration / parameter from a wireless communication node via a first signaling. The wireless communication device may determine, based on at least one configuration / parameter, the detection / reception (or the ability to detect / receive) of a signal (e.g., a common signal) from the wireless communication node. The at least one configuration / parameter may indicate / specify / set at least one of the following: applicable / spreading period; spread factor; offset (e.g., SSB burst offset); timer; service duration; or on-off service configuration. The timer may indicate / represent / specify the timing of the validity of the at least one configuration / parameter. The at least one configuration / parameter may be associated with at least one resource. The at least one resource may include at least one of the following: cell; synchronization signal block (SSB); frequency resource; beam / spatial filter; antenna port; signal (e.g., channel / reference signal); target area; or polarization. The first signaling may include at least one of the following: System Information Block (SIB) signaling; Radio Resource Control (RRC) signaling; or Medium Access Control Element (MAC CE) signaling. In some embodiments, the wireless communication device may determine the synchronization signal block (SSB) reception period based on at least one configuration / parameter. At least one parameter / configuration provided by the first signaling can be updated via the second signaling. The second signaling may include at least one of MAC CE signaling or Downlink Control Information (DCI) signaling.

[0005] In some embodiments, the wireless communication device may determine a period for blind signal detection / reception based on at least one predefined value. The wireless communication device may receive / detect (e.g., monitor / listen) signals according to the determined period. In some embodiments, the wireless communication device may detect signals based on at least one of the determined period or a predefined timer. The wireless communication device may receive signals according to a configured period.

[0006] In some embodiments, the wireless communication device may use resources determined by at least one parameter / configuration to transmit at least one uplink (UL) transmission during the Random Access Control Channel (RACH) process. In some embodiments, the wireless communication device may determine the Random Access Timing (RO) period based on at least one configuration / parameter. The wireless communication device may determine a window for receiving a Random Access Response (RAR) based on at least one parameter. The wireless communication device may send a report to the wireless communication node. This report may include an indication of at least one of the following: the period for signal reception or the location of the wireless communication device.

[0007] In some embodiments, the wireless communication device can determine the timing relationship between data transmission (e.g., uplink data transmission or downlink data reception) and the corresponding indication signal based on at least one parameter (e.g., Koffset2, Koffset3, or Koffset4). The wireless communication device can determine the indication period for monitoring wireless link quality based on at least one of the following: the parameter value of ssb-periodicityServingCell (if configured); the parameter value of ssb-periodicityApplicable (if configured); the parameter value of ssb-periodicityExtensionFactor (if configured); a predefined value; or a discontinuous reception (DRX) period.

[0008] In some embodiments, a wireless communication node may send / provide / indicate at least one configuration / parameter to a wireless communication device via a first signaling. The wireless communication device may determine whether to receive / detect a signal (e.g., a common signal) from the wireless communication node based on the at least one configuration / parameter. The at least one configuration / parameter may indicate at least one of the following: applicable / spreading period; spread factor; offset (e.g., SSB burst offset); timer; service duration; or on-off service configuration. The at least one configuration / parameter may be associated with at least one resource. The at least one resource may include at least one of the following: cell; synchronization signal block (SSB); frequency resource; beam / spatial filter; antenna port; channel / reference signal; target area; or polarization. The first signaling may include at least one of the following: System Information Block (SIB) signaling; Radio Resource Control (RRC) signaling; or Medium Access Control Element (MAC CE) signaling. Attached Figure Description

[0009] Various exemplary embodiments of this solution are described in detail below with reference to the figures and accompanying drawings. The drawings are provided for illustrative purposes only and depict only exemplary embodiments of the solution to aid the reader's understanding. Therefore, the drawings should not be considered as limitations on the breadth, scope, or applicability of this solution. It should be noted that these drawings are not necessarily drawn to scale for clarity and ease of explanation.

[0010] Figure 1 An example cellular communication network is shown, in which the techniques disclosed herein may be implemented according to embodiments of the present disclosure;

[0011] Figure 2 Block diagrams of example base station and user equipment apparatuses according to some embodiments of the present disclosure are shown;

[0012] Figure 3Example implementation structures of features for signal transmission and / or reception according to some embodiments of this disclosure are shown;

[0013] Figure 4 Example implementation structures of features for signal transmission and / or reception according to some embodiments of this disclosure are shown;

[0014] Figure 5 An example synchronization signal block (SSB) pattern for signal transmission and / or reception according to some embodiments of the present disclosure is shown;

[0015] Figure 6 Example synchronization signal block (SSB) patterns for signal transmission and / or reception according to some embodiments of this disclosure are shown; and

[0016] Figure 7 A flowchart illustrating an example method for signal transmission and / or reception according to embodiments of the present disclosure is shown. Detailed Implementation

[0017] 1. Mobile Communication Technology and Environment

[0018] Figure 1 An example wireless communication network and / or system 100 according to embodiments of the present disclosure is illustrated, in which the techniques disclosed herein can be implemented. In the following discussion, wireless communication network 100 can be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as "network 100". This example network 100 includes a base station 102 (hereinafter referred to as "BS 102"; also referred to as a wireless communication node) and a user equipment device 104 (hereinafter referred to as "UE 104"; also referred to as a wireless communication device), which 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 covering a geographic area 101. Figure 1 In this context, BS 102 and UE 104 are contained within the respective geographical boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating on its allocated bandwidth to provide sufficient wireless coverage to its intended users.

[0019] For example, BS 102 can operate on the allocated channel transmission bandwidth to provide sufficient coverage to UE 104. BS 102 and UE 104 can communicate via downlink radio frame 118 and uplink radio frame 124, respectively. Each radio frame 118 / 124 can be further divided into subframes 120 / 127, which may include data symbols 122 / 128. In this disclosure, BS 102 and UE 104 are generally described herein as non-limiting examples of "communication nodes" that can practice the methods disclosed herein. According to various embodiments of this solution, such communication nodes are capable of wireless and / or wired communication.

[0020] Figure 2 A block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of this solution is shown. System 200 may include components and elements configured to support known or conventional operating characteristics that do not need to be described in detail herein. In one illustrative embodiment, system 200 may be used in wireless communication environments (such as...) Figure 1 In a wireless communication environment 100, data symbols are transmitted (e.g., transmitted and received), as described above.

[0021] System 200 typically includes a base station 202 (hereinafter referred to as "BS 202") and a user equipment device 204 (hereinafter referred to as "UE 204"). 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 each other as needed via a data communication bus 220. 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 each other as needed via a data communication bus 240. BS 202 communicates with UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for data transmission as described herein.

[0022] Those skilled in the art will understand that system 200 may also include, in addition to Figure 2Any number of modules other than those shown herein. 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 can 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 generally described according to their functionality. Whether such functionality is implemented as hardware, firmware, or software can depend on the specific application and design constraints imposed on the system as a whole. Those skilled in the art can implement such functionality appropriately for each specific application, but such implementation decisions should not be construed as limiting the scope of this disclosure.

[0023] According to some embodiments, UE transceiver 230 may be referred to herein as "uplink" transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, each RF transmitter and RF receiver including circuitry coupled to antenna 232. A duplex switch (not shown) may alternately couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, BS transceiver 210 may be referred to herein as "downlink" transceiver 210, which includes an RF transmitter and an RF receiver, each RF transmitter and RF receiver including circuitry coupled to antenna 212. A downlink duplex switch may alternately couple the downlink transmitter or receiver to downlink antenna 212 in a time-duplex manner. The operation of the two transceiver modules 210 and 230 may be time-coordinated such that while the downlink transmitter is coupled to downlink antenna 212, the uplink receiver circuitry is coupled to uplink antenna 232 for receiving transmissions on radio transmission link 250. Conversely, the operation of the two transceivers 210 and 230 can be time-coordinated, such that while the uplink transmitter is coupled to the uplink antenna 232, the downlink receiver is coupled to the downlink antenna 212 for receiving transmissions on the wireless transmission link 250. In some embodiments, there is tight time synchronization with a minimum guard time between changes in duplex direction.

[0024] UE transceiver 230 and base transceiver 210 are configured to communicate via wireless data communication link 250 and cooperate with RF antenna arrangements 212 / 232 that are appropriately configured to support specific wireless communication protocols and modulation schemes. In some illustrative embodiments, UE transceiver 210 and base transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and emerging 5G standards. However, it should be understood that this disclosure is not necessarily limited to the application of specific standards and related protocols. Rather, UE transceiver 230 and base transceiver 210 may be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.

[0025] According to various embodiments, BS 202 may be, for example, an evolved node B (eNB), a serving eNB, a target eNB, a femtocell, or a picocell. In some embodiments, UE 204 may be embodied in various types of user equipment, such as mobile phones, smartphones, personal digital assistants (PDAs), tablets, laptops, wearable computing devices, etc. Processor modules 214 and 236 may be implemented or realized using a general-purpose processor, content-addressable memory, digital signal processor, application-specific integrated circuit, 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 way, the processor may be implemented as a microprocessor, a controller, a microcontroller, or a state machine, etc. The processor may also be implemented as a combination of computing devices, such as a combination of a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other such configuration.

[0026] Furthermore, the steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be directly embodied in hardware, firmware, software modules executed by processor modules 214 and 236 respectively, or any actual combination thereof. Memory modules 216 and 234 can be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 can be coupled to processor modules 210 and 230 respectively, such that processor modules 210 and 230 can read information from and write information to memory modules 216 and 234 respectively. Memory modules 216 and 234 can also be integrated into their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during the execution of instructions executed by processor modules 210 and 230 respectively. Memory modules 216 and 234 may each include non-volatile memory for storing instructions executed by processor modules 210 and 230, respectively.

[0027] Network communication module 218 typically represents the hardware, software, firmware, processing logic, and / or other components of base station 202 that enable bidirectional communication between base transceiver 210 and other network components and communication nodes configured to communicate with base station 202. For example, network communication module 218 may be configured to support Internet or WiMAX traffic. In a non-limiting typical deployment, network communication module 218 provides an 802.3 Ethernet interface, enabling base transceiver 210 to communicate with conventional Ethernet-based computer networks. In this way, network communication module 218 may include a physical interface for connecting to a computer network (e.g., a Mobile Switching Center (MSC)). The terms “configured for,” “configured to,” and variations thereof, used herein with respect to a specified operation or function, refer to devices, components, circuits, structures, machines, signals, etc., that are physically constructed, programmed, formatted, and / or arranged to perform the specified operation or function.

[0028] The Open Systems Interconnection (OSI) model (referred to herein as the "OSI model") is a conceptual and logical layout that defines network communications used by systems (e.g., wireless communication devices, wireless communication nodes) that are open to interconnecting and communicating with other systems. The model is divided into seven sub-components or layers, each representing a set of concepts providing services to the layers above and below it. The OSI model also defines logical networks and efficiently describes computer packet transmission 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, the first layer may be the physical layer. In some embodiments, the second layer may be the Medium Access Control (MAC) layer. In some embodiments, the third layer may be the Radio Link Control (RLC) layer. In some embodiments, the fourth layer may be the Packet Data Convergence Protocol (PDCP) layer. In some embodiments, the fifth layer may be the Radio Resource Control (RRC) layer. In some embodiments, the sixth layer may be the Non-Access Stratum (NAS) layer or the Internet Protocol (IP) layer, and the seventh layer is another layer.

[0029] Various exemplary embodiments of this solution are described below with reference to the accompanying drawings to enable those skilled in the art to complete and use this solution. As will be apparent to those skilled in the art, various changes or modifications can be made to the examples described herein after reading this disclosure without departing from the scope of this solution. Therefore, this solution is not limited to the exemplary embodiments and applications described and illustrated herein. Furthermore, the specific order or hierarchy of steps in the methods disclosed herein is merely an example method. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes can be rearranged while remaining within the scope of this solution. Therefore, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or actions in a sample order, and unless otherwise expressly stated, this solution is not limited to the specific order or hierarchy presented.

[0030] 2. Systems and methods for signal transmission and reception

[0031] As new radio (NR) systems move / evolve to higher frequencies, propagation conditions may deteriorate compared to lower frequencies, making coverage challenges more difficult to address. Therefore, directional antennas are widely used for beamforming. Simultaneously, beam scanning also brings greater flexibility and efficiency to network coverage.

[0032] For one example, in terrestrial networks, network energy saving (NES) can be achieved by using longer beam scan cycles / periods on the BS side in low-traffic areas and / or off-peak hours. For another example, repeaters or RIS with beam scanning capabilities can be used to address coverage blind spots, and common signals from the BS can be forwarded by repeaters or reconfigurable intelligent surfaces (RIS) using beam scanning. For yet another example, in non-terrestrial networks, beaming hopping can be used to facilitate coverage over large areas using a limited number of simultaneous beams, and coverage availability based on beam scan cycles can adapt to traffic loads in different areas.

[0033] In the example above, from the BS's perspective, common signal transmission (e.g., SSB, common PDSCH for a group of UEs, common PDCCH (e.g., DCI)) still uses a fixed period. However, different areas (or different times) within the BS's coverage area can be served by beams with non-uniform scanning patterns. In other words, some areas (e.g., with high load) can be served with common signals using a fixed period, while other areas (e.g., with low load) can be served with common signals using a longer period than the fixed period. Therefore, from the UE's perspective, common signals can be received with a changing / variable period based on specific areas and / or at different times (e.g., off-peak hours). This can affect the UE's procedures related to common signal reception and / or uplink transmission.

[0034] Furthermore, UE-specific signal transmission and reception may also be affected by beam scanning. For example, a BS may use a wide beam for common or control signal transmission and a narrow beam for UE-specific or data signal transmission. Wide and narrow beams can use different beam scanning periods. In this case, the UE can be informed of the service availability of the beam (wide or narrow) (e.g., service duration or on / off service configuration).

[0035] Figure 3 Example implementation structures of elements for (e.g., for supporting / enabling) signal transmission and / or reception according to some embodiments of this disclosure are shown. Figure 3 The method described in the text is from the BS side (transmission). On the BS side, there are three aspects to consider: (1) What is the new configuration / parameter? (2) Which resources can the new configuration / parameter be associated with? (3) What signaling can be used to carry the configuration / parameter? Figure 4Example implementation structures of elements for public signal transmission and / or reception according to some embodiments of this disclosure are shown. Figure 4 The methods described in the text are from the UE side (reception / detection). On the UE side, there are several procedures related to the reception of common signals: (1) cell search, (2) random access, (3) timing relationship of downlink / uplink (DL / UL) transmission after DL reception, and (4) radio link monitoring.

[0036] In current terrestrial networks, common signals are transmitted by the BS at a fixed period. Taking the NR synchronization signal block (SSB) as an example of a common signal, its period can be provided by the parameter value of ssb-periodicityServingCell, which is fixed and the same for all actually transmitted SSBs. For example, a UE can perform cell search using the assumption of a 20ms SSB period before its initial access. The UE can use the physical random access channel (PRACH) configuration to determine the time resources for the random access occasion (RO), which applies to all coverage locations and times within the serving cell. The UE can determine the start time of the random access response (RAR) window based on the configured time offset, which also applies to all coverage locations and times within the serving cell. The UE can determine the timing of the Physical Downlink Shared Channel (PDSCH) scheduled by the Physical Downlink Control Channel (PDCCH), the hybrid automatic repeat request (HARQ) of the PDSCH and / or the Physical Uplink Shared Channel (PUSCH) scheduled by the PDCCH, and / or the HARQ based on the configured time offset. This applies to all coverage locations and times within the serving cell. The UE can perform radio link monitoring using the parameter values ​​of ssb-periodicityServingCell and the UE's DRX mode / configuration, which also applies to all coverage locations and times within the serving cell.

[0037] Implementation Example 1: BS Side (New Configuration / Parameter Indication)

[0038] Due to network requirements / restrictions, the period of the public signal may vary, which can be indicated to the UE in the network. The UE can adjust its actions accordingly. In some embodiments, the BS can send at least one parameter to the UE via first signaling. The UE can determine the detection of a signal (e.g., a public signal) from the BS based on at least one parameter. (1) At least one parameter can be used to indicate the period of a public / UE-specific signal, which can indicate at least one of the following: applicable / extended period; extension factor; offset; timer; service duration; or on-off service configuration.

[0039] ① Applicable / Extended Cycle:

[0040] 1) The UE can determine the period for blind detection of the common signal based on at least one predefined value. The UE can detect the common signal based on the determined period. In some embodiments, the UE can detect the common signal based on at least one of the determined period or a predefined timer. Taking NR SSB as an example common signal, one or more SSB periods can be predefined for the UE's blind detection before initial access, given that the period of SSB reception may vary. For example, the UE can assume that a half-frame with SSB occurs with an applicable / extended period of {20ms, 40ms, 80ms, 160ms} for its initial cell selection. In this case, multiple SSB periods can be used in cell search.

[0041] 2) After successful initial access, the BS can use the ssb-periodicityApplicable parameter value to indicate the applicable / extended SSB period to the UE via UE-specific signaling. Based on the UE's location (e.g., in a low-traffic area) or time (e.g., off-peak hours), this parameter value may differ from the cell-specific parameter ssb-periodicityServingCell. In this case, the extended SSB period (different from the cell-specific SSB period) can be indicated to the UE via UE-specific signaling.

[0042] ② Spread Factor: The applicable / spread period can be determined by the parameter value of ssb-periodicityServingCell and the spread factor. Taking NR SSB transmission as an example, in Figure 5 and Figure 6 Two possible scenarios are shown in the diagram. Figure 5 and Figure 6 A diagram illustrating the use of the expansion factor is provided. Figure 5In this configuration, the BS can transmit SSBs using a fixed period of 10ms. Simultaneously, portions of the SSB can be transmitted using beam scanning to cover different areas at different times. For example, SSBs #0~#63 can be transmitted with a period of 10ms. SSBs #0~#36 can be transmitted to cover the areas corresponding to beams #0~#36 respectively. SSBs #37~#63 can be transmitted during the first and last 10ms of a 20ms overcurrent period to cover the areas corresponding to beams #37~#63# and beams #64~#90. The parameter value of ssb-periodicityServingCell can be 10ms, and the parameter value of ssb-periodicityExtensionFactor can be 2. From the BS's perspective, the SSB transmission (period) can remain unchanged. The change on the BS side can be the beam scanning pattern. Figure 6 In this context, the BS can transmit different SSBs at different periods, for example, 10ms and 20ms in areas with high and low traffic loads, respectively. The system information may contain only one cell-specific ssb-periodicityServingCell parameter value. For example, SSBs #0~#31 can be transmitted at a 10ms period, and SSBs #32~#63 can be transmitted at a 20ms period. The corresponding area covered by beams #0~#31 can have high load, and the corresponding area covered by beams #32~#63 can have low load. In this case, the ssb-periodicityServingCell parameter value can be 10ms, and the additional parameter value of ssb-periodicityExtensionFactor can be 2, which can be provided to the UE (e.g., in areas with low traffic load) to facilitate accurate measurement and effective monitoring / detection. From the BS's perspective, the SSB transmission (period) can be varied. In this case, an extension factor can be indicated to determine the SSB reception period.

[0043] ③ Offset in the Applicable / Extended SSB Period: After successful initial access, the BS can use the ssb-burstOffset parameter value to indicate the SSB burst offset in the applicable / extended SSB period to the UE via UE-specific signaling. This helps the UE effectively monitor / detect appropriate SSB bursts in the applicable / extended SSB period, for example, based on the UE's location (e.g., in low-traffic areas) or time (e.g., off-peak hours). For example, in Figure 5In this case, ssb-burstOffset=0ms can be provided to UEs in beams #37~#63, and ssb-burstOffset=10ms can be provided to UEs in beams #64~#90. In this case, the offset in the extended SSB period (different from the cell-specific SSB period) can be indicated to the UE via UE-specific signaling.

[0044] ④ Timer:

[0045] 1) For initial cell selection, a predefined timer (e.g., 160ms) can be used by the UE during its SSB detection. When the timer expires, the UE can stop / terminate blind SSB detection, and the physical layer can report cell search failure to higher layers. In this case, the predefined timer can be used for cell search.

[0046] 2) After successful initial access by the UE, a timer can be indicated to the UE. This timer can be used to indicate the validity period of at least one of the following parameter values: ssb-periodicityApplicable, ssb-periodicityExtensionFactor, or ssb-periodicityServingCell. If the timer indicates the validity period of the parameter value of ssb-periodicityApplicable or ssb-periodicityExtensionFactor, the UE can use the parameter value of ssb-periodicityServingCell to monitor the SSB after the timer expires (e.g., in satellite networks using steerable beams for beam scanning). If the timer indicates the validity period of the parameter value of ssb-periodicityServingCell, the UE can use the parameter value of ssb-periodicityApplicable or ssb-periodicityExtensionFactor to determine the SSB reception period to monitor the SSB after the timer expires. In this case, the timer can indicate the validity period of the parameter, which supports the fallback of the SSB period after the timer expires.

[0047] ⑤ Service duration:

[0048] 1) Service duration can indicate the effective duration of the parameter's applicable period, expansion factor, and offset within the applicable period.

[0049] 2) Service duration can indicate the service availability time of currently used resources (e.g., cell / beam).

[0050] 3) The service duration can be overridden by the UE-specific DRX configuration.

[0051] ⑥ On / Off Service Configuration:

[0052] 1) The on-off service configuration can indicate the service availability time, similar to the DTX / DRX configuration of a resource. The configuration allows you to set the on duration, off duration, and the period for each duration.

[0053] 2) On-off service configuration can also be an on-off diagram, which can indicate the availability / unavailability time of resources.

[0054] 3) The on / off service configuration can control the specific DRX configuration of the UE.

[0055] (2) Configuration / parameters can be associated with one or more resources. One or more resources can include at least one of the following: cell; synchronization signal block (SSB); or frequency resource. In this case, new parameters can be applied to different resources, and these resources can be combined in association with parameters.

[0056] ① Cell: The new configurations / parameters discussed above can be associated with one or more cells. For example, the BS can change the SSB period of a cell during off-peak hours. In this case, a predefined applicable / extended SSB period of 160ms can be provided for the cell. The UE can attempt to blindly detect the SSB using the 160ms period before its initial access. As another example, different SSB periods for neighboring cells can be provided to the UE by the serving cell (e.g., during handover). This parameter can be placed in a cell-specific configuration.

[0057] ② SSB: The new configuration / parameters discussed above can be associated with one or more SSBs. For example, the SSB periods used by high-load areas and low-load areas can be 10ms and 20ms, respectively. In this case, each value can be associated with a set (or a list) of SSB indices. The UE can use the configuration / parameters and associated SSBs to correctly monitor the SSBs. The configuration / parameters can be provided along with the relevant SSB indices.

[0058] ③ Frequency Resources: The new configurations / parameters discussed above can be associated with one or more frequency resources. A frequency resource can be at least one of a carrier or a bandwidth part (BWP). For example, frequency reuse is widely used in real-world networks to improve spectral efficiency. The coverage area of ​​each beam can be served by an SSB. For high-load and low-load areas, the SSB period can be 10ms and 20ms, respectively. In this case, each value can be associated with a set (or a list) of frequency resources. The UE can use this configuration / parameter for efficient signal monitoring / detection / reception of the associated frequency resources. The configuration / parameter can be placed in a carrier- or BWP-specific configuration.

[0059] ④ Beam / Spatial Filter: Parameters / configurations can be associated with one or more beam / spatial filters. For example, if different beams or spatial filters are used (e.g., a wide beam for common or control signals, and a narrow beam for UE-specific or data signals), multiple parameters / configurations can be used, and each value can be associated with a set (or a list) of beam / spatial filter indices.

[0060] ⑤ Antenna Port: Parameters / configurations can be associated with one or more antenna ports. For example, if different beams are used (e.g., a wide beam for common or control signals, and a narrow beam for UE-specific or data signals), multiple parameters / configurations can be used, and each value can be associated with a set (or a list) of beam / spatial filter indices.

[0061] ⑥ Channel / Reference Signal: Parameters / configurations can be associated with one or more physical channels or reference signals. For example, physical channels can be SSB, PRACH, PDCCH, PDSCH, PUCCH, and PUSCH. For example, reference signals can be synchronization signals, channel state information reference signals (CSI-RS), phase tracking reference signals (PTRS), tracking reference signals (TRS), and / or sounding reference signals (SRS).

[0062] ⑦ Target Area: Parameters / configurations can be associated with one or more target areas. For example, areas with high traffic load and low traffic load can be indicated by a reference location and a corresponding distance threshold. The UE can use the reference location and the corresponding distance threshold to determine the applicable parameters / configurations. As another example, a target area can refer to a physical area on the ground (e.g., represented by one or more coordinate points of a geographic area) or a physical area in space (e.g., represented by one or more height layers). As yet another example, a target area can refer to a logical area ID that maps to a specific physical area on the ground or in space.

[0063] ⑧ Polarization: Parameters / configurations can be associated with one or more polarizations. The polarization can be at least one of {vertical polarization, horizontal polarization, cross polarization, linear polarization, LHCP, RHCP}. For example, polarization multiplexing is commonly used in satellite networks to improve spectral efficiency. Different beam coverage areas can be served by different polarizations (e.g., LHCP and RHCP). In this case, each value can be associated with a set (or a list) of polarizations. The UE can use this parameter / configuration for efficient signal monitoring of the associated polarizations.

[0064] (3) Configuration / parameters can be carried in cell-specific signaling (e.g., system information (SI)) or UE-specific signaling (e.g., media access control control element / radio resource control (MAC CE / RRC)).

[0065] ① If the configuration / parameter is carried / configured by cell-specific signaling, the parameter can be a new parameter in the system information, such as SIB1.

[0066] ② If the configuration / parameter is carried / configured by UE-specific signaling, the parameter can be a new configuration / parameter in an RRC message, such as RRCSetup or RRCReconfiguration. It can also be handover-related signaling.

[0067] ③ Parameters / configurations can be updated via another RRC signaling, MAC CE signaling, or DCI signaling.

[0068] Implementation Example 2: UE Side (Cell Search)

[0069] (1) For initial cell selection, the UE may assume that half-frames with synchronization signal (SS) / physical broadcast channel (PBCH) blocks occur at one or more predefined periods, such as {20ms, 40ms, 80ms, 160ms}.

[0070] (2) The BS may not know the UE's location. Therefore, the UE can determine the SSB reception period and report it to the BS to assist the BS in determining the UE's location. The UE can determine the SSB reception period by at least one of the following:

[0071] ① The UE can determine the SSB reception period based on the time interval between successfully decoded PBCHs with the same SSB index. After successful initial access, the UE can send a report to the BS to determine at least one configuration / parameter.

[0072] ② The UE can determine the SSB reception period based on the configuration / parameters provided by the BS.

[0073] 1) The SSB reception period can be equal to or represented by the applicable / extended period ssb-periodicityApplicable.

[0074] 2) The SSB reception period can be equal to Or by express.

[0075] 3) The SSB reception period provided by the BS can be the same as or different from those predefined values.

[0076] (3) The UE can configure one or more predefined SSB periods of neighboring cells by its serving cell, which can be used to search for SSBs of neighboring cells, for example for handover purposes.

[0077] (4) The UE can use multiple parameters / configurations. For example, the UE can use multiple predefined SSB periods during cell search. At the same time, the UE can also use service duration or on-off service configuration to determine service availability.

[0078] Implementation Example 3: UE Side (Random Access)

[0079] The UE can use the new parameters / configuration to determine at least one of the resources used in its UL transmission during random access procedures. At least one of the resources can refer to the resource associated with the new parameters / configuration (e.g., time / frequency / beam / spatial filter / polarization).

[0080] (1) The UE can determine the random access timing (RO) period based on the SSB receive period. Since the SSB receive period may be longer than the cell-specific period, the UE can extend its RO period accordingly. The radio frame used for random access timing can be determined through PRACH configuration, which can be equal to (or represented as) (ms), and x can be a configured integer value (e.g., n). f = x mod y). If the SSB reception period is not equal to the cell-specific value ssb-periodicityServingCell, the UE can determine the extension factor (e.g., rach-PeriodExtensionFactor) of the random access timing period, and can do so through... (ms) determines the radio frame used for random access timing. The rach-PeriodExtensionFactor can be determined by one of the following / by one of the following:

[0081] ① rach-PeriodExtensionFactor = SSB receiving period divided by ssb-periodicityServingCell.

[0082] ② rach-PeriodExtensionFactor = Configuration value provided to the UE via cell-specific or UE-specific signaling.

[0083] (2) The UE can determine the window for receiving the Random Access Response (RAR) based on at least one parameter. The UE may attempt to detect downlink control information (DCI) format 1_0 with cyclic redundancy check (CRC) scrambled for the RAR window by the corresponding RA-RNTI. The RAR window may begin with the first symbol of the earliest control resource set (CORESET) of the PDCCH for which the UE is configured to receive the Type 1-PDCCH CSS set, plus an additional T. TA +K mac +K extend In this case, the UE can use a new offset to delay the RAR (Receive / Detect) window. New parameter K extend The value can be at least one of the following values:

[0084] ① Zero.

[0085] ② The SSB reception period determined by the UE.

[0086] ③ The applicable / extended period ssb-periodicityApplicable, indicated by the BS, can be associated with one or more resources that the UE will use for its random access.

[0087] ④ The value of the expansion factor. The expansion factor can be associated with one or more resources that the UE will use for its random access.

[0088] (3) The UE may report its determined SSB reception period to the BS, which may include a location report (e.g., the UE's location). The BS may use this auxiliary information to determine the resources used by the UE or the location-based beam scan period. The UE report may be generated / transmitted after successful initial access or carried in the MsgA-PUSCH of a two-step RACH. For example, if the BS uses auxiliary information to determine the content of the RAR (e.g., time resources for Msg3), the UE may use the MsgA-PUSCH to report the auxiliary information.

[0089] The UE may transmit at least one of the UL signals used for the random access procedure in the associated resources (e.g., time / frequency resources) determined by the new parameters / configuration. At least one of the UL signals may include a PRACH preamble (e.g., Msg1, for initial random access or system information request), Msg3, PUCCH for Msg4, Msg5, and MsgA-PUSCH in a two-step RACH.

[0090] Implementation Example 4: Data Transmission Timing

[0091] The UE can determine the timing relationship between data transmission (e.g., uplink data transmission or downlink data reception) and the corresponding indication signal based on at least one parameter (e.g., Koffset2, Koffset3, or Koffset4). An example for determining data transmission timing is shown below.

[0092] (1) The UE can determine the timing relationship between downlink data transmission for dynamic scheduling and the corresponding dynamic control indication signaling based on at least one parameter (e.g., offset). The time-domain resources for downlink data transmission for dynamic scheduling in the dynamic control indication signaling can start from the time slot offset K0 plus Koffset (if configured). To support changes in the common signaling period due to beam scanning, an additional offset Koffset2 can be added at the beginning of the time-domain resources.

[0093] (2) The UE can determine the timing relationship between downlink data transmission and corresponding HARQ transmission for dynamic scheduling based on at least one parameter (e.g., offset). The start of the time-domain resource of the PUCCH carrying HARQ-ACK information can be defined by the allocated HARQ-ACK timing K1 and Koffset (if configured). To support changes in the common signaling cycle due to beam scanning, an additional offset Koffset3 can be added at the start of the time-domain resource.

[0094] (3) The UE can determine the timing relationship between uplink data transmission for dynamic scheduling and the corresponding dynamic control indication signaling based on at least one parameter (e.g., offset). The start of the time domain resource for uplink data transmission for dynamic scheduling in the dynamic control indication signaling can begin with the time slot offset K2 plus Koffset (if configured). To support changes in the common signaling period due to beam scanning, an additional offset Koffset4 can be added at the beginning of the time domain resource.

[0095] (4) If configured, the value of any one of Koffset2, Koffset3, and Koffset4 can be equal to one of the following:

[0096] ① Zero.

[0097] ② Applicable / extended periodicity (ssb-periodicity)

[0098] ③ .

[0099] Implementation Example 5: Wireless Link Monitoring

[0100] The UE can determine the indication period for monitoring radio link quality based on at least one of the following: the parameter value of ssb-periodicityServingCell (if configured); the parameter value of ssb-periodicityApplicable (if configured); the parameter value of ssb-periodicityExtensionFactor (if configured); a predefined value; or a discontinuous reception (DRX) period.

[0101] (1) In non-DRX mode operation, the physical layer in the UE can evaluate the radio link quality once per indication period. If the radio link monitoring resource is an SSB, the UE can determine the indication period as {ssb-periodicityServingCell, ssb-periodicityApplicable, ...} The maximum value in {10ms}, where each of the parameters ssb-periodicityApplicable or ssb-periodicityExtensionFactor is considered / included if the parameter ssb-periodicityApplicable or ssb-periodicityExtensionFactor is configured (and omitted or not considered if not configured). The indicated period may vary due to the SSB reception cycle.

[0102] (2) In DRX mode operation, the physical layer in the UE can evaluate the radio link quality once per indication period. If the radio link monitoring resource is an SSB, the UE can determine the indication period as {ssb-periodicityServingCell, ssb-periodicityApplicable, ...} The maximum value in the DRX period, where each of the parameters ssb-periodicityApplicable or ssb-periodicityExtensionFactor is considered / included if the parameter ssb-periodicityApplicable or ssb-periodicityExtensionFactor is configured. The indicated period may change due to the SSB reception cycle.

[0103] It should be understood that one or more features in the above / below implementation examples are not unique to a particular implementation example, but can be combined in any way (e.g., in any priority and / or order, simultaneously or otherwise).

[0104] Figure 7 A flowchart of a method 700 for signal transmission and reception is shown. Method 700 can be used in conjunction with this document. Figure 1-6 The method is implemented using any one or more components and devices described in detail. Generally, in some embodiments, method 700 may be performed by a wireless communication device (e.g., a UE). Depending on the embodiment, additional, fewer, or different operations may be performed in method 700. At least one aspect of the operation relates to a system, method, apparatus, or computer-readable medium.

[0105] A wireless communication device may receive at least one configuration / parameter from a wireless communication node via a first signaling. The wireless communication device may determine whether to detect / receive (or be able to detect / receive) a signal (e.g., a common signal) from the wireless communication node based on at least one configuration / parameter. At least one configuration / parameter may indicate / specify / set at least one of the following: applicable / spreading period; spread factor; offset (e.g., SSB burst offset); timer; service duration; or on-off service configuration. A timer may indicate / represent / specify the timing of the validity of at least one configuration / parameter. At least one configuration / parameter may be associated with at least one resource. At least one resource may include at least one of the following: cell; synchronization signal block (SSB); frequency resource; beam / spatial filter; antenna port; signal (e.g., channel / reference signal); target area; or polarization. The first signaling may include at least one of the following: system information block (SIB) signaling; radio resource control (RRC) signaling; or medium access control element (MAC CE) signaling. In some embodiments, the wireless communication device may determine the synchronization signal block (SSB) reception period based on at least one configuration / parameter. At least one parameter / configuration provided by the first signaling can be updated via the second signaling. The second signaling may include at least one of MAC CE signaling or Downlink Control Information (DCI) signaling.

[0106] In some embodiments, the wireless communication device may determine a period for blind signal detection / reception based on at least one predefined value. The wireless communication device may receive / detect (e.g., monitor / listen) signals according to the determined period. In some embodiments, the wireless communication device may detect signals based on at least one of the determined period or a predefined timer. The wireless communication device may receive signals according to a configured period.

[0107] In some embodiments, the wireless communication device may use resources determined by at least one parameter / configuration to transmit at least one uplink (UL) transmission during a random access control channel (RACH) process. In some embodiments, the wireless communication device may determine the random access timing (RO) period based on at least one configuration / parameter. The wireless communication device may determine a window for receiving a random access response (RAR) based on at least one parameter. The wireless communication device may send a report to the wireless communication node. This report may include an indication of at least one of the following: the period for signal reception or the location of the wireless communication device.

[0108] In some embodiments, the wireless communication device can determine the timing relationship between data transmission (e.g., uplink data transmission or downlink data reception) and the corresponding indication signal based on at least one parameter (e.g., Koffset2, Koffset3, or Koffset4). The wireless communication device can determine the indication period for monitoring wireless link quality based on at least one of the following: the parameter value of ssb-periodicityServingCell (if configured); the parameter value of ssb-periodicityApplicable (if configured); the parameter value of ssb-periodicityExtensionFactor (if configured); a predefined value; or a discontinuous reception (DRX) period.

[0109] In some embodiments, a wireless communication node may send / provide / indicate at least one configuration / parameter to a wireless communication device via a first signaling. The wireless communication device may determine whether to receive / detect a signal (e.g., a common signal) from the wireless communication node based on the at least one configuration / parameter. The at least one configuration / parameter may indicate at least one of the following: applicable / spreading period; spread factor; offset (e.g., SSB burst offset); timer; service duration; or on-off service configuration. The at least one configuration / parameter may be associated with at least one resource. The at least one resource may include at least one of the following: cell; synchronization signal block (SSB); frequency resource; beam / spatial filter; antenna port; channel / reference signal; target area; or polarization. The first signaling may include at least one of the following: System Information Block (SIB) signaling; Radio Resource Control (RRC) signaling; or Medium Access Control Element (MAC CE) signaling.

[0110] While various embodiments of the present solution have been described above, it should be understood that they are presented by way of example only and not by way of limitation. Similarly, various figures may depict exemplary architectures or configurations provided to enable those skilled in the art to understand exemplary features and functionality of the present solution. However, those skilled in the art will understand that the solution is not limited to the exemplary architectures or configurations shown, but can be implemented using various alternative architectures and configurations. Furthermore, as those skilled in the art will understand, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited to any of the illustrative embodiments described above.

[0111] It should also be understood that any reference to elements in this document, such as “first” or “second”, generally does not restrict the number or order of those elements. Rather, these names may be used herein as a convenient means of distinguishing two or more elements or instances of elements. Therefore, the reference to a first element and a second element does not imply that only two elements can be used, or that the first element must somehow precede the second element.

[0112] Furthermore, those skilled in the art will understand that information and signals can be represented using any of a variety of different technologies and processes. For example, data, instructions, commands, information, signals, bits, and symbols mentioned in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.

[0113] Those skilled in the art will further understand that any of the various illustrative logic blocks, modules, processors, devices, circuits, methods, and functions described in conjunction with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of programs or design code containing instructions (which may be referred to herein as "software" or "software module"), or any combination of these technologies. To clearly illustrate this interchangeability of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps have been generally described above in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software, or as a combination of these technologies, depends on the specific application and design constraints imposed on the system as a whole. Those skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions do not depart from the scope of this disclosure.

[0114] Furthermore, those skilled in the art will understand that the various illustrative logic blocks, modules, devices, components, and circuits described herein may be implemented within or executed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, or any combination thereof. Logic blocks, modules, and circuits may also include antennas and / or transceivers for communicating with various components within a network or device. A general-purpose processor may be a microprocessor, but in alternatives, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration performing the functions described herein.

[0115] If implemented as software, the functionality can be stored as one or more instructions or code on a computer-readable medium. Therefore, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, encompassing any medium capable of transferring computer programs or code from one place to another. Storage media can be any available medium accessible to a computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, 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 is accessible to a computer.

[0116] In this document, the term "module" as used herein refers to software, firmware, hardware, and any combination of such elements used to perform the associated functions described herein. Furthermore, for the purposes of discussion, various modules are described as discrete modules; however, it will be apparent to those skilled in the art that two or more modules can be combined to form a single module that performs the associated functions according to embodiments of this solution.

[0117] Furthermore, in embodiments of this solution, memory or other memory and communication components may be employed. It should be understood that, for clarity, the above description has referenced different functional units and processors in embodiments of this solution. However, it will be apparent that any suitable functional distribution among different functional units, processing logic elements, or domains may be used without departing from this solution. For example, a function illustrated as being performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Therefore, references to specific functional units are merely references to suitable means for providing said functionality and not indications of a strict logical or physical structure or organization.

[0118] Various modifications to the embodiments described in this disclosure will be 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. Therefore, this 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 set forth in the following claims.

Claims

1. A method comprising: At least one configuration is received by the wireless communication device from the wireless communication node via a first signaling; as well as The wireless communication device determines, based on the at least one configuration, to receive signals from the wireless communication node.

2. The method according to claim 1, wherein, The at least one configuration indicates at least one of the following: Applicable timeframe; Expansion factor; Offset; Timer; Service duration; or On / off service configuration.

3. The method according to claim 2, wherein, The timer indicates the timing of the validity of the at least one configuration.

4. The method according to claim 1, wherein, The at least one configuration is associated with at least one resource, the at least one resource including at least one of the following: residential community; Synchronization Signal Block (SSB); Frequency resources; Beam; Antenna port; Channel; Target area; or polarization.

5. The method according to claim 1, wherein, The first signaling includes at least one of the following: System Information Block (SIB) signaling, Radio Resource Control (RRC) signaling; or Media Access Control Element (MAC CE) signaling.

6. The method according to claim 5, wherein, The at least one configuration provided by the first signaling is updated by the second signaling, and the second signaling includes at least one of MAC CE signaling or downlink control information (DCI) signaling.

7. The method according to claim 1, comprising: The period for blind detection of the signal is determined by the wireless communication device based on at least one predefined value; as well as The wireless communication device receives the signal according to a determined period.

8. The method according to claim 1, comprising: The wireless communication device receives the signal according to a configured period.

9. The method according to claim 1, comprising: The wireless communication device uses resources determined by the at least one configuration to transmit at least one uplink (UL) transmission during the random access control channel (RACH) process.

10. The method according to claim 1, comprising: The wireless communication device determines the window for receiving a random access response (RAR) based on the at least one configuration.

11. The method according to claim 1, comprising: The wireless communication device sends a report to the wireless communication node, wherein the report includes an indication of at least one of the following: the period for receiving the signal or the location of the wireless communication device.

12. The method according to claim 1, comprising: The wireless communication device determines the timing relationship between data transmission and the corresponding indication signal based on the at least one configuration.

13. The method according to claim 1, comprising: The wireless communication device determines the indication period for monitoring wireless link quality based on at least one of the following: The parameter value for ssb-periodicityServingCell, if it is configured; The value of the ssb-periodicityApplicable parameter, if it is configured; The parameter value of ssb-periodicityExtensionFactor, if it is configured; Predefined value; or Discontinuous reception (DRX) period.

14. A method comprising: A wireless communication node sends at least one configuration to a wireless communication device via a first signaling, wherein the wireless communication device determines, based on the at least one configuration, to receive a signal from the wireless communication node.

15. The method according to claim 14, wherein, The at least one configuration indicates at least one of the following: Applicable timeframe; Expansion factor; Offset; Timer; Service duration; or On / off service configuration.

16. The method of claim 14, wherein, The at least one configuration is associated with at least one resource, the at least one resource including at least one of the following: residential community; Synchronization Signal Block (SSB); Frequency resources; Beam; Antenna port; Channel; Target area; or polarization.

17. The method according to claim 12, wherein, The first signaling includes at least one of the following: System Information Block (SIB) signaling; Radio Resource Control (RRC) signaling; or Media Access Control Element (MAC CE) signaling.

18. A non-transitory computer-readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform the method according to any one of claims 1-17.

19. An apparatus comprising: At least one processor is configured to implement the method according to any one of claims 1-17.

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