Systems and methods for signal transmission and reception
By dynamically adjusting signal detection and transmission periodicities based on configuration parameters, the system optimizes signal reception and transmission in wireless communication systems, addressing challenges related to varying propagation conditions and beamforming requirements.
Patent Information
- Application Number
- PCT/CN2023/136228
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2025-06-12
AI Technical Summary
Current wireless communication systems face challenges in efficiently managing signal transmission and reception due to varying propagation conditions and beamforming requirements, especially as new radio systems move to higher frequencies.
The proposed solution involves a system and method where a wireless communication device receives configuration parameters via signaling from a wireless communication node, allowing it to adjust signal detection and transmission periodicities based on specific conditions such as traffic load and time of day, thereby optimizing signal reception and transmission.
This approach enhances energy efficiency and coverage by dynamically adjusting signal periodicities and beam sweeping patterns, improving network performance and user equipment procedures related to common signal reception and uplink transmission.
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Figure CN2023136228_12062025_PF_FP_ABST
Abstract
Description
SYSTEMS AND METHODS FOR SIGNAL TRANSMISSION AND RECEPTIONTECHNICAL FIELD
[0001] The disclosure relates generally to wireless communications, including but not limited to systems and methods for signal transmission and reception.BACKGROUND
[0002] The standardization organization Third Generation Partnership Project (3GPP) is currently in the process of specifying a new Radio Interface called 5G New Radio (5G NR) as well as a Next Generation Packet Core Network (NG-CN or NGC) . The 5G NR will have three main components: a 5G Access Network (5G-AN) , a 5G Core Network (5GC) , and a User Equipment (UE) . In order to facilitate the enablement of different data services and requirements, the elements of the 5GC, also called Network Functions, have been simplified with some of them being software based, and some being hardware based, so that they could be adapted according to need. Communication via satellite is one of the typical scenarios of the non-terrestrial networks in 3GPP standardization. In addition, satellites will play an increasingly key part in providing coverage and resilience in 6G. In 6G study, RIS is another important topic, which provides a way to control the surfaces found in radio channels by directing them in a specific direction to improve the reliability and energy efficiency of wireless systems.SUMMARY
[0003] The example embodiments disclosed herein are directed to solving the issues relating to one or more 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 of the following. A wireless communication device may receive at least one configuration / parameter via a first signaling from a wireless communication node. The wireless communication device may determine to detect / receive (or may detect / receive) a signal (e.g., a common signal) from the wireless communication node according to the at least one configuration / parameter. The at least one configuration / parameter may indicate / specify / set at least one of: an applicable / extended periodicity; an extension factor; an offset (e.g., a SSB burst offset) ; a timer; a service duration; or an on-off service configuration. The timer may indicate / represent / specify timing about validity of the at least one configuration / parameter. The at least one configuration / parameter can be associated with at least one resource. The at least one resource may include at least one of: a cell; a synchronization signal block (SSB) ; a frequency resource; a beam / spatial filter; an antenna port; a signal (e.g., a channel / reference signal) ; a target area; or a polarization. The first signaling may include at least one of: a system information block (SIB) signaling; a radio resource control (RRC) signaling; or a medium access control control element (MAC CE) signaling. In some embodiments, the wireless communication device may determine a synchronization signal block (SSB) reception periodicity according to the at least one configuration / parameter. The at least one parameter / configuration provided by the first signaling can be updated by a second signaling. The second signaling may include at least one of: a MAC CE signaling or a downlink control information (DCI) signaling.
[0005] In some embodiments, the wireless communication device may determine a periodicity for blind detection / reception of the signal, according to at least one predefined value. The wireless communication device may receive / detect (e.g., monitor / listen for) the signal according to the determined periodicity. In certain embodiments, the wireless communication device may detect the signal according to at least one of: the determined periodicity or a predefined timer. The wireless communication device may receive the signal according to the configured periodicity.
[0006] In some embodiments, the wireless communication device may transmit at least one of uplink (UL) transmission in a random access control channel (RACH) procedure using a resource determined by the at least one parameter / configuration. In some embodiments, the wireless communication device may determine a random access occasion (RO) periodicity, according to the at least one configuration / parameter. The wireless communication device may determine a window for reception of a random access response (RAR) , according to the at least one parameter. The wireless communication device may send a report to the wireless communication node. The report may include an indication of at least one of: a periodicity for reception of the signal or a location of the wireless communication device.
[0007] In some embodiments, the wireless communication device may determine a timing relationship between a data transmission (e.g., an uplink data transmission or a downlink data reception) and a corresponding indication signal, according to the at least one parameter (e.g., Koffset2, Koffset3, or Koffset4) . The wireless communication device may determine an indication period for monitoring radio link quality, according to at least one of: a parameter value of ssb-periodicityServingCell, if configured; a parameter value of ssb-periodicityApplicable, if configured; a 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 via a first signaling to a wireless communication device. The wireless communication device may determine to receive / detect a signal (e.g., a common signal) from the wireless communication node according to the at least one configuration / parameter. The at least one configuration / parameter may indicate at least one of: an applicable / extended periodicity; an extension factor; an offset (e.g., a SSB burst offset) ; a timer; a service duration; or an on-off service configuration. The at least one configuration / parameter can be associated with at least one resource. The at least one resource may include at least one of: a cell; a synchronization signal block (SSB) ; a frequency resource; a beam / spatial filter; an antenna port; a channel / reference signal; a target area; or a polarization. The first signaling may include at least one of: a system information block (SIB) signaling; a radio resource control (RRC) signaling; or a medium access control control element (MAC CE) signaling.BRIEF DESCRIPTION OF THE DRAWINGS
[0009] 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.
[0010] 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;
[0011] 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;
[0012] FIG. 3 illustrates an example implementation structure of features for signal transmission and / or reception, in accordance with some embodiments of the present disclosure;
[0013] FIG. 4 illustrates an example implementation structure of features for signal transmission and / or reception, in accordance with some embodiments of the present disclosure;
[0014] FIG. 5 illustrates an example synchronization signal block (SSB) pattern for signal transmission and / or reception, in accordance with some embodiments of the present disclosure;
[0015] FIG. 6 illustrates an example synchronization signal block (SSB) pattern for signal transmission and / or reception, in accordance with some embodiments of the present disclosure; and
[0016] FIG. 7 illustrates a flow diagram of an example method for signal transmission and / or reception, in accordance with an embodiment of the present disclosure.DETAILED DESCRIPTION
[0017] 1. Mobile Communication Technology and Environment
[0018] 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.
[0019] 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.
[0020] 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.
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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 more microprocessors in conjunction with a digital signal processor core, or any other such configuration.
[0026] 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.
[0027] 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 communication 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.
[0028] 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.
[0029] 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.
[0030] 2. Systems and Methods for Signal Transmission and Reception
[0031] As new radio (NR) systems move / advance to higher frequencies, propagation conditions can degrade compared to lower frequencies, making coverage challenges more difficult to address. As a result, beamforming is widely employed using directional antennas. Meanwhile, beam sweeping also brings higher flexibility and efficiency to network coverage.
[0032] For one example, in terrestrial networks, network energy saving (NES) can be achieved by using longer beam sweeping periodicity / periods at the BS side in low traffic areas and / or off-peak hours. For another example, repeater or RIS with beam sweeping capability may be used to deal with coverage holes, and the common signal from the BS can be forwarded by a repeater or reconfigurable intelligent surfaces (RIS) using beam sweeping. For another example, in non-terrestrial networks, beaming 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.
[0033] In the examples mentioned above, from the viewpoint of a BS, the common signals (e.g., SSB, common PDSCH for a group of UEs, common PDCCH like DCI) transmission still uses a fixed periodicity, but different areas (or over different times) in the BS’s coverage may be served by beams with an uneven sweeping manner. In other words, some areas (e.g., with high load) may be served with the common signals using a fixed periodicity, and other areas (e.g., with low load) may be served with the common signals using a periodicity that is longer than the fixed periodicity. As a result, from the viewpoint of a UE, the common signals may be received with a changing / varying periodicity based on the specific area and / or over different times, e.g., off-peak hours. This may impact the UE’s procedures which are related to the common signals reception and / or following uplink transmission.
[0034] In addition, UE specific signal transmission and reception can be also impacted by the beam sweeping. For example, a BS may use wide beams in common signal or control signal transmission and narrow beams in UE specific signal or data signal transmission. The wide beams and the narrow beams may use different beam sweeping periodicity. In this case, the service availability (e.g., a service duration or an on-off service configuration) of a beam (either wide or narrow) can be indicated to the UE.
[0035] FIG. 3 illustrates an example implementation structure of elements for (e.g., for supporting / enabling) signal transmission and / or reception, in accordance with some embodiments of the present disclosure. The method in FIG. 3 is described from the BS side (transmission) . At the BS side, there can be three aspects to consider: (1) what is the new configuration / parameter? (2) what are the resources that the new configuration / parameter can be associated to? (3) what signaling can be used to carry the configuration / parameter? FIG. 4 illustrates an example implementation structure of elements for common signal transmission and / or reception, in accordance with some embodiments of the present disclosure. The method in FIG. 4 is described from the UE side (reception / detection) . At the UE side, there can be several procedures related to common signal reception: (1) cell search, (2) random access, (3) timing relationship of the downlink / uplink (DL / UL) transmission after a DL reception, (4) radio link monitoring.
[0036] In current terrestrial networks, the common signal is transmitted by a BS with a fixed periodicity. Taking a NR synchronization signal block (SSB) as an example of a common signal, its periodicity can be provided by a parameter value of ssb-periodicityServingCell, which is fixed and the same for all actually transmitted SSBs. For example, a UE may carry out cell search using an assumption of 20ms SSB periodicity before the UE’s initial access. A UE may determine a time resource for random access occasions (ROs) using a physical random access channel (PRACH) configuration, which applies to all coverage locations and times in the serving cell. A UE may determine a start time of a random access response (RAR) window according to configured time offsets, which applies to all coverage location and time in the serving cell. A UE may determine a timing of a physical downlink shared channel (PDSCH) scheduled by a physical downlink control channel (PDCCH) , a hybrid automatic repeat request (HARQ) for a physical downlink shared channel (PDSCH) and / or a physical uplink shared channel (PUSCH) scheduled by a PDCCH according to configured time offsets, which applies to all coverage locations and times in the serving cell. A UE may perform radio link monitoring using a parameter value of ssb-periodicityServingCell and the UE’s DRX mode / configuration, which applies to all coverage locations and times in the serving cell.
[0037] Implementation Example 1: BS side (new configuration / parameter indication)
[0038] Periodicities of common signals may vary due to the need / limitation of a network, which can be indicated to the UEs in the network. The UEs may adjust its actions accordingly. In some embodiments, a BS may send at least one parameter via a first signaling to a UE. The UE may determine to detect a signal (e.g., a common signal) from the BS according to the at least one parameter. (1) At least one parameter can be utilized to indicate a common / UE specific signal’s periodicity, which can indicate at least one of: an applicable / extended periodicity; an extension factor; an offset; a timer; a service duration; or an on-off service configuration.
[0039] ① Applicable / Extended periodicity:
[0040] 1) The UE may determine a periodicity for blind detection of the common signal, according to at least one predefined value. The UE may detect the common signal according to the determined periodicity. In certain embodiments, the UE may detect the common signal according to at least one of: the determined periodicity or a predefined timer. Taking a NR SSB as an example common signal, with possible changing periodicity in SSB reception, one or more SSB periodicities can be predefined for UE’s blind detection before an initial access. For example, a UE may assume that half frames with SSBs occur with an applicable / extended periodicity of one of {20ms, 40ms, 80ms, 160ms} for its initial cell selection. In such case, multiple SSB periodicities can be used in cell search.
[0041] 2) After a successful initial access, the applicable / extended SSB periodicity can be indicated to the UE by the BS using a parameter value of ssb-periodicityApplicable via a UE specific signaling, which may have a value different from the cell specific parameter ssb-periodicityServingCell based on the location of the UE (e.g., in a low traffic area) or the time (e.g., in off-peak hours) . In such a case, an extended SSB periodicity (different from the cell specific SSB periodicity) can be indicated to the UE via a UE specific signaling.
[0042] ② Extension factor: The applicable / extended periodicity can be determined by a parameter value of ssb-periodicityServingCell and an extension factor. Taking NR SSB transmission as example, two possible cases are illustrated in FIGs. 5 and 6. FIGs. 5 and 6 provide an illustration of extension factor usage. In FIG. 5, the BS may transmit SSBs using a fixed periodicity of 10ms. Meanwhile, part of the SSBs can be transmitted using beam sweeping to cover different areas over different timse. For example, SSB #0~#63 can be transmitted with 10ms periodicity. SSB #0~#36 can be transmitted to cover the area corresponding to beam #0~#36, respectively. SSB #37~#63 can be transmitted to cover the area corresponding to beam #37~#63 and beam #64~#90 during the first 10ms and the second 10ms of a hyper period of 20ms. The parameter value of ssb-periodicityServingCell can be 10ms, and the parameter value of ssb-periodicityExtensionFactor can be 2. From the viewpoint of the BS, the (periodicity of) SSB transmission may not change. The change at the BS side can be the beam sweeping pattern. In FIG. 6, the BS may transmit different SSBs with different periodicities, e.g., periodicities of 10ms and 20ms in areas with high and low traffic load, respectively. There can be only one cell specific parameter value of ssb-periodicityServingCell in the system information. For example, SSB #0~#31 can be transmitted with 10ms periodicity, and SSB #32~#63 can be transmitted with 20ms periodicity. The corresponding area covered by beam #0~#31 may have high load, and the corresponding area covered by beam #32~63 may have low load. In such a case, the parameter value of ssb-periodicityServingCell can be 10ms, and an extra parameter value of ssb-periodicityExtensionFactor can be 2, which can be provided to the UEs (e.g., which are in the areas with low traffic load) to facilitate proper measurement and effective monitoring / detection. From the viewpoint of the BS, the (periodicity of) SSB transmission may change. In such case, an extension factor can be indicated to determine a SSB reception periodicity.
[0043] ③ Offset in the applicable / extended periodicity: After the successful initial access, the SSB burst offset in the applicable / extended SSB periodicity can be indicated to the UE by the BS using the parameter value of ssb-burstOffset via a UE specific signaling, which helps the UE to effectively monitor / detect for suitable SSB burst (s) in the applicable / extended periodicity, e.g., based on the location of the UE (e.g., in a low traffic area) or the time (e.g., in off-peak hours) . For example, in FIG. 5, ssb-burstOffset=0ms can be provided to the UEs in beam #37~#63, and ssb-burstOffset=10ms can be provided to the UEs in beam #64~#90. In such case, the offset in the extended SSB periodicity (different from the cell specific SSB periodicity) can be indicated to the UE via a UE specific signaling.
[0044] ④ Timer:
[0045] 1) For an initial cell selection, a predefined timer (e.g., 160ms) can be used by UE in its SSB detection. The UE may stop / cease blind detection of a SSB when the timer expires, and the physical layer may report a cell search failure to a higher layer. In such case, a predefined timer can be used for cell search.
[0046] 2) A timer can be indicated to a UE after its successful initial access, which can be used to indicate a validity time of the parameter values of at least one of: ssb-periodicityApplicable, ssb-periodicityExtensionFactor, or ssb-periodicityServingCell. If the timer indicates the validity time of the parameter value of ssb-periodicityApplicable or ssb-periodicityExtensionFactor, the UE may use the parameter value of ssb-periodicityServingCell to monitor the SSB after the timer expires (e.g., in a satellite network with beam sweeping using steering beams) . If the timer indicates the validity time of the parameter value of ssb-periodicityServingCell, the UE may use the parameter value of ssb-periodicityApplicable or ssb-periodicityExtensionFactor to determine the SSB reception periodicity to monitor the SSB after the timer expires. In such case, a timer may indicate the validity time of parameters, which supports a fall-back SSB periodicity after the timer expires.
[0047] ⑤ Service duration:
[0048] 1) The service duration can indicate the validity duration of the parameter applicable periodicity, extension factor, offset in the applicable periodicity.
[0049] 2) The service duration can indicate the service availability time of current used resource (e.g., cell / beam) .
[0050] 3) The service duration can override 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 a DTX / DRX configuration of a resource. Within the configuration, on duration, off duration and periodicity for each duration can be configured.
[0053] 2) The on-off service configuration can also be an on-off pattern, which may indicate the availability / unavailability time of a resource.
[0054] 3) The on-off service configuration can override the UE specific DRX configuration.
[0055] (2) The configuration / parameter can be associated with one or more resources. The one or more resources may include at least one of: a cell; a synchronization signal block (SSB) ; or a frequency resource. In such a case, the new parameter can be applicable to different resources and these resources can be combined in the association with a parameter.
[0056] ① Cell: The new configuration / parameter discussed above can be associated with one or more cells. For example, a BS can change the SSB periodicity of a cell during off-peak hours. In this case, an applicable / extended SSB periodicity of 160ms can be predefined for the cell. A UE can try to detect the SSB using 160ms periodicity blindly before its initial access. For another example, the different SSB periodicities of neighboring cells can be provided by the serving cell to the UE (e.g., during handover) . The parameter can be put in a cell specific configuration.
[0057] ② SSB: The new configuration / parameter discussed above can be associated with one or more SSBs. For example, the SSB periodicity used by high loaded and low loaded areas can be 10ms and 20ms, respectively. In such case, each value can be associated with a set (or a list) of SSB indexes. A UE can use the configuration / parameter and the associated SSBs to properly monitor the SSB. The configuration / parameter can be provided together with related SSB indexes.
[0058] ③ Frequency resource: The new configuration / parameter discussed above can be associated with one or more frequency resource. The frequency resource can be at least one of: a carrier or a bandwidth part (BWP) . For example, frequency reuse is widely adopted in a practical network to improve the spectrum efficiency. Each beam’s covered area can be served by an SSB. For high loaded and low loaded areas, SSB periodicities can be 10ms and 20ms, respectively. In this case, each value can be associated with a set (or a list) of frequency resources. A UE can use the configuration / parameter for efficient signal monitoring / detection / reception of the associated frequency resources. The configuration / parameter can be put in a carrier or BWP specific configuration.
[0059] ④ Beam / spatial filter: The parameter / configuration can be associated with one or more beams / spatial filters. For example, if different beams or spatial filters are used (e.g., wide beams for common signal or control signal, and narrow beams for UE specific signal or data signal) , multiple parameter / configurations may be used, and each value can be associated with a set (or a list) of beam / spatial filter indexes.
[0060] ⑤ Antenna port: The parameter / configuration can be associated with one or more antenna ports. For example, if different beams are used (e.g., wide beams for common signal or control signal, and narrow beams for UE specific signal or data signal) , multiple parameter / configurations may be used, and each value can be associated with a set (or a list) of beam / spatial filter indexes.
[0061] ⑥ Channel / reference signal: The parameter / configuration can be associated with one or more physical channels or reference signals. For example, the physical channels can be SSB, PRACH, PDCCH, PDSCH, PUCCH and PUSCH. For example, the reference signals can be synchronization signals, channel state information reference signal (CSI-RS) , phase tracking reference signal (PTRS) , tracking reference signal (TRS) , and / or sounding reference signal (SRS) .
[0062] ⑦ Target area: The parameter / configuration can be associated with one or more target areas. For example, the areas with high traffic load and low traffic load can be indicated by reference locations and corresponding distance thresholds. The UE can use the reference location and the corresponding distance threshold to determine the parameter / configuration applicable. For another example, the target area can refer to a physical area on ground (e.g., expressed by one or more coordinate points of a geographic area) or in space (e.g., expressed by one or more altitude levels) . For another example, the target area can refer to a logic area ID which maps to a specific physical area one ground or in space.
[0063] ⑧ Polarization: The parameter / configuration can be associated with one or more polarization. And the polarization can be at least one of {vertical polarization, horizontal polarization, cross polarization, linear polarization, LHCP, RHCP} . For example, polarization reuse is often adopted in a satellite network to improve the spectrum efficiency. And different beam’s covered area can be served by different polarization (e.g., LHCP and RHCP) . In this case, each value can be associated with a set (or a list) of polarization. A UE can use the parameter / configuration for efficient signal monitoring of the associated polarization.
[0064] (3) The configuration / parameter can be carried in cell specific signaling (e.g., system information (SI) ) or UE specific signaling (e.g., medium access control control element / radio resource control (MAC CE / RRC) ) .
[0065] ① If the configuration / parameter is carried / configured by a cell specific signaling, the parameter can be a new parameter in system information, e.g., SIB1.
[0066] ② If the configuration / parameter is carried / configured by a UE specific signaling, the parameter can be a new configuration / parameter in a RRC message, e.g., RRCSetup or RRCReconfiguration. It also can be a handover related signaling.
[0067] ③ The parameter / configuration can be updated by another RRC signaling, MAC CE signaling, or DCI signaling.
[0068] Implementation Example 2: UE side (Cell search)
[0069] (1) For an initial cell selection, a UE may assume that half frames with synchronization signal (SS) / physical broadcast channel (PBCH) blocks occur with one or more predefined periodicities, e.g., {20ms, 40ms, 80ms, 160ms} .
[0070] (2) The BS may not know the location of the UE. Hence, the UE may determine the SSB reception periodicity and may report to the BS to assist the BS to determine the UE’s location. The UE may determine the SSB reception periodicity by at least one of:
[0071] ① The UE can determine a SSB reception periodicity according to the time interval length between successful decoded PBCH with the same SSB index. After UE’s successful initial access, the UE may send a report to the BS for determining the at least one configuration / parameter.
[0072] ② The UE may determine a SSB reception periodicity according to the configuration / parameter provided by the BS.
[0073] 1) The SSB reception periodicity may be equal to, or represented by the applicable / extended periodicity ssb-periodicityApplicable.
[0074] 2) The SSB reception periodicity may be equal to, or represented by ssb-periodicityServingCell*ssb-periodicityExtensionFactor.
[0075] 3) The SSB reception periodicity provided by the BS can be the same as or different from those predefined values.
[0076] (3) A UE may be configured with one or more predefined SSB periodicities of a neighboring cell by its serving cell, which can be used to search the SSB of the neighboring cell, e.g., for handover purpose.
[0077] (4) Multiple parameters / configurations can be used by the UE. For example, multiple predefined SSB periodicities can be used in the UE’s cell search. At the same time, a service duration or an on-off service configuration can also be used by the UE to determine the service availability.
[0078] Implementation Example 3: UE side (Random access)
[0079] A UE can determine at least one of resources used in its UL transmission of the random access procedure using the new parameter / configuration. The at least one of resources may refer to the associated resource (e.g., time / frequency / beam / spatial filter / polarization) of the new parameter / configuration.
[0080] (1) A UE may determine a random access occasion (RO) periodicity based on the SSB reception periodicity. Since the SSB reception periodicity may be longer than the cell specific periodicity, the UE may extend its RO periodicity accordingly. A radio frame for a random access occasion can be determined by a PRACH configuration, which may be equal to (or represented by) 10*x (ms) and x can be a configured integer value (e.g., nf = x mod y) . If the SSB reception periodicity does not equal to the cell specific value ssb-periodicityServingCell, the UE may determine the extension factor of the random access occasion periodicity (e.g., rach-PeriodExtensionFactor) , and the radio frame for a random access occasion can be determined by 10*x*rach-PeriodExtensionFactor (ms) . The rach-PeriodExtensionFactor can be determined as / by one of the following:
[0081] ① rach-PeriodExtensionFactor = The SSB reception periodicity divided by ssb-periodicityServingCell.
[0082] ② rach-PeriodExtensionFactor = A configured value provided to the UE via cell specific or UE specific signaling.
[0083] (2) The UE may determine a window for reception of a random access response (RAR) , according to the at least one parameter. The UE may attempt to detect a downlink control information (DCI) format 1_0 with cyclic redundancy check (CRC) scrambled by a corresponding RA-RNTI for an RAR window, which may start at the first symbol of the earliest control resource set (CORESET) that the UE is configured to receive PDCCH for Type1-PDCCH CSS set plus an additional TTA+Kmac+Kextend. In such case, the UE may delay the RAR (reception / detection) window with a new offset. The value of the new parameter Kextend can be at least one of:
[0084] ① Zero.
[0085] ② The SSB reception periodicity determined by the UE.
[0086] ③ The applicable / extended periodicity ssb-periodicityApplicable indicated by the BS, which can be associated with the one or more resource that to be used by the UE for its random access.
[0087] ④ The value of ssb-periodicityServingCell*ssb-periodicityExtensionFactor. The extension factor can be associated with the one or more resource that to be used by the UE for its random access.
[0088] (3) A UE may report its determined SSB reception periodicity to the BS, which can be accompanied by a location report (e.g., of the UE’s location) . The BS can use this assistance information to determine the resource used by the UE or the location-based beam sweeping periodicity. The UE report can be generated / sent after successful initial access or be carried in the MsgA-PUSCH of a two step RACH. For example, if the BS uses the assistance information to determine the content of RAR (e.g., time resource for Msg3) , the UE may use the MsgA-PUSCH to report the assistance information.
[0089] A UE may transmit at least one of UL signals for the random access procedure in the associated resource (e.g., time / frequency resource) determined by the new parameter / configuration. The at least one of UL signals may include PRACH preamble (e.g., Msg1, for initial random access or system information request) , Msg3, PUCCH for Msg4, Msg5, MsgA-PUSCH in two step RACH.
[0090] Implementation Example 4: Data transmission timing
[0091] A UE may determine a timing relationship between a data transmission (e.g., an uplink data transmission or a downlink data reception) and a corresponding indication signal, according to at least one parameter (e.g., Koffset2, Koffset3, or Koffset4) . The following shows examples for determining data transmission timing.
[0092] (1) The UE may determine a timing relationship for dynamically scheduled downlink data transmission and the corresponding dynamic control indication signaling according to at least one parameter (e.g., an offset) . The time domain resource for a dynamically scheduled downlink data transmission in the dynamic control indication signaling may start with a slot offset K0 plus Koffset, if configured. To support common signaling periodicity change due to beam sweeping, an extra offset Koffset2 can be added in the time domain resource start.
[0093] (2) The UE may determine a timing relationship for dynamically scheduled downlink data transmission and the corresponding HARQ transmission according to at least one parameter (e.g., an offset) . The start of the time domain resource of the PUCCH which carries the HARQ-ACK information, can be defined by the assigned HARQ-ACK timing K1 and Koffset, if configured. To support common signaling periodicity change due to beam sweeping, an extra offset Koffset3 can be added in the time domain resource start.
[0094] (3) The UE may determine a timing relationship for dynamically scheduled uplink data transmission and the corresponding dynamic control indication signaling according to at least one parameter (e.g., an offset) . The start of the time domain resource for a dynamically scheduled uplink data transmission in the dynamic control indication signaling may start with a slot offset K2 plus Koffset, if configured. To support common signaling periodicity change due to beam sweeping, an extra offset Koffset4 can be added in the time domain resource start.
[0095] (4) If configured, the values of any one of Koffset2, Koffset3, Koffset4 can be equal to one of:
[0096] ① Zero.
[0097] ② The applicable / extended periodicity ssb-periodicityApplicable.
[0098] ③ ssb-periodicityServingCell*ssb-periodicityExtensionFactor.
[0099] Implementation Example 5: Radio link monitoring
[0100] The UE may determine an indication period for monitoring radio link quality, according to at least one of:a parameter value of ssb-periodicityServingCell, if configured; a parameter value of ssb-periodicityApplicable, if configured; a 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 may assess once per indication period the radio link quality. If the radio link monitoring resource is SSB, the UE may determine an indication period as the maximum of {ssb-periodicityServingCell, ssb-periodicityApplicable, ssb-periodicityServingCell*ssb-periodicityExtensionFactor, 10ms} , where each of the parameters ssb-periodicityApplicable or ssb-periodicityExtensionFactor is considered / included if it is configured (and is omitted or not considered, if not configured) . The indication period may change due to the SSB reception periodicity.
[0102] (2) In DRX mode operation, the physical layer in the UE may assess the radio link quality once per indication period. If the radio link monitoring resource is SSB, the UE may determine the indication period as the maximum of {ssb-periodicityServingCell, ssb-periodicityApplicable, ssb-periodicityServingCell*ssb-periodicityExtensionFactor, the DRX period} , where each of the parameters ssb-periodicityApplicable or ssb-periodicityExtensionFactor is considered / included if it is configured. The indication period may change due to the SSB reception periodicity.
[0103] It should be understood that one or more features from the above / following implementation examples are not exclusive to the specific implementation examples, but can be combined in any manner (e.g., in any priority and / or order, concurrently or otherwise) .
[0104] FIG. 7 illustrates a flow diagram of a method 700 for signal transmission and reception. The method 700 may be implemented using any one or more of the components and devices detailed herein in conjunction with FIGs. 1–6. In overview, the method 700 may be performed by a wireless communication device (e.g., a UE) , in some embodiments. Additional, fewer, or different operations may be performed in the method 700 depending on the embodiment. At least one aspect of the operations is directed to a system, method, apparatus, or a computer-readable medium.
[0105] A wireless communication device may receive at least one configuration / parameter via a first signaling from a wireless communication node. The wireless communication device may determine to detect / receive (or may detect / receive) a signal (e.g., a common signal) from the wireless communication node according to the at least one configuration / parameter. The at least one configuration / parameter may indicate / specify / set at least one of: an applicable / extended periodicity; an extension factor; an offset (e.g., a SSB burst offset) ; a timer; a service duration; or an on-off service configuration. The timer may indicate / represent / specify timing about validity of the at least one configuration / parameter. The at least one configuration / parameter can be associated with at least one resource. The at least one resource may include at least one of: a cell; a synchronization signal block (SSB) ; a frequency resource; a beam / spatial filter; an antenna port; a signal (e.g., a channel / reference signal) ; a target area; or a polarization. The first signaling may include at least one of: a system information block (SIB) signaling; a radio resource control (RRC) signaling; or a medium access control control element (MAC CE) signaling. In some embodiments, the wireless communication device may determine a synchronization signal block (SSB) reception periodicity according to the at least one configuration / parameter. The at least one parameter / configuration provided by the first signaling can be updated by a second signaling. The second signaling may include at least one of: a MAC CE signaling or a downlink control information (DCI) signaling.
[0106] In some embodiments, the wireless communication device may determine a periodicity for blind detection / reception of the signal, according to at least one predefined value. The wireless communication device may receive / detect (e.g., monitor / listen for) the signal according to the determined periodicity. In certain embodiments, the wireless communication device may detect the signal according to at least one of: the determined periodicity or a predefined timer. The wireless communication device may receive the signal according to the configured periodicity.
[0107] In some embodiments, the wireless communication device may transmit at least one of uplink (UL) transmission in a random access control channel (RACH) procedure using a resource determined by the at least one parameter / configuration. In some embodiments, the wireless communication device may determine a random access occasion (RO) periodicity, according to the at least one configuration / parameter. The wireless communication device may determine a window for reception of a random access response (RAR) , according to the at least one parameter. The wireless communication device may send a report to the wireless communication node. The report may include an indication of at least one of: a periodicity for reception of the signal or a location of the wireless communication device.
[0108] In some embodiments, the wireless communication device may determine a timing relationship between a data transmission (e.g., an uplink data transmission or a downlink data reception) and a corresponding indication signal, according to the at least one parameter (e.g., Koffset2, Koffset3, or Koffset4) . The wireless communication device may determine an indication period for monitoring radio link quality, according to at least one of: a parameter value of ssb-periodicityServingCell, if configured; a parameter value of ssb-periodicityApplicable, if configured; a 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 via a first signaling to a wireless communication device. The wireless communication device may determine to receive / detect a signal (e.g., a common signal) from the wireless communication node according to the at least one configuration / parameter. The at least one configuration / parameter may indicate at least one of: an applicable / extended periodicity; an extension factor; an offset (e.g., a SSB burst offset) ; a timer; a service duration; or an on-off service configuration. The at least one configuration / parameter can be associated with at least one resource. The at least one resource may include at least one of: a cell; a synchronization signal block (SSB) ; a frequency resource; a beam / spatial filter; an antenna port; a channel / reference signal; a target area; or a polarization. The first signaling may include at least one of: a system information block (SIB) signaling; a radio resource control (RRC) signaling; or a medium access control control element (MAC CE) signaling.
[0110] While various embodiments 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 architectural 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 more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative embodiments.
[0111] 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.
[0112] 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, for example, 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.
[0113] 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.
[0114] 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 more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.
[0115] If implemented in software, the functions can be stored as one or more 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.
[0116] 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 embodiments of the present solution.
[0117] 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.
[0118] 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:receiving, by a wireless communication device from a wireless communication node, at least one configuration via a first signaling; anddetermining, by the wireless communication device, to receive a signal from the wireless communication node according to the at least one configuration.2.The method of claim 1, wherein the at least one configuration indicates at least one of:an applicable periodicity;an extension factor;an offset;a timer;a service duration; oran on-off service configuration.3.The method of claim 2, wherein the timer indicates timing about validity of the at least one configuration.4.The method of 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:a cell;a synchronization signal block (SSB) ;a frequency resource;a beam;an antenna port;a channel;a target area; ora polarization.5.The method of claim 1, wherein the first signaling includes at least one of: a system information block (SIB) signaling, a radio resource control (RRC) signaling; or a medium access control control element (MAC CE) signaling.6.The method of claim 5, wherein the at least one configuration provided by the first signaling is updated by a second signaling, and the second signaling includes at least one of: a MAC CE signaling or a downlink control information (DCI) signaling.7.The method of claim 1, comprising:determining, by the wireless communication device, a periodicity for blind detection of the signal, according to at least one predefined value; andreceiving, by the wireless communication device, the signal according to the determined periodicity.8.The method of claim 1, comprising:receiving, by the wireless communication device, the signal according to a configured periodicity.9.The method of claim 1, comprising:transmitting, by the wireless communication device, at least one of uplink (UL) transmission in a random access control channel (RACH) procedure using a resource determined by the at least one configuration.10.The method of claim 1, comprising:determining, by the wireless communication device, a window for reception of a random access response (RAR) , according to the at least one configuration.11.The method of claim 1, comprising:sending, by the wireless communication device to the wireless communication node, a report, wherein the report includes an indication of at least one of: periodicity for reception of the signal or a location of the wireless communication device.12.The method of claim 1, comprising:determining, by the wireless communication device, a timing relationship between a data transmission and a corresponding indication signal, according to the at least one configuration.13.The method of claim 1, comprising:determining, by the wireless communication device, an indication period for monitoring radio link quality, according to at least one of:a parameter value of ssb-periodicityServingCell, if configured;a parameter value of ssb-periodicityApplicable, if configured;a parameter value of ssb-periodicityExtensionFactor, if configured;a predefined value; ora discontinuous reception (DRX) period.14.A method comprising:sending, by a wireless communication node to a wireless communication device, at least one configuration via a first signaling, wherein the wireless communication device determines to receive a signal from the wireless communication node according to the at least one configuration.15.The method of claim 14, wherein the at least one configuration indicates at least one of:an applicable periodicity;an extension factor;an offset;a timer;a service duration; oran 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:a cell;a synchronization signal block (SSB) ;a frequency resource;a beam;an antenna port;a channel;a target area; ora polarization.17.The method of claim 12, wherein the first signaling includes at least one of: a system information block (SIB) signaling; a radio resource control (RRC) signaling; or a medium access control control element (MAC CE) signaling.18.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 1-17.19.An apparatus comprising:at least one processor configured to implement the method of any one of claims 1-17.
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