Systems and methods for reference signaling design and configuration

Abstract

Systems and methods for wireless communication are disclosed herein. In one embodiment, a method performed by a wireless communication device includes receiving downlink signaling indicating a power offset between a power of a synchronization signal and a power of a channel state information-reference signal (CSI-RS), and determining information of the synchronization signal. In another embodiment, a method performed by a wireless communication device includes receiving downlink signaling indicating information of a mobility measurement reference signal resource, where the information includes at least one of power information or retransmission information.

Description

Technical Field

[0001] This disclosure relates generally to wireless communications, and more specifically to systems and methods for designing and configuring reference signaling. Background Technology

[0002] Wireless communication services cover an increasing number of applications. The effective measurement and reporting of cells associated with various wireless communication devices is becoming increasingly important. However, conventional systems may not be able to effectively measure and report cells associated with various wireless communication devices using conventional reference signaling. Therefore, a technical solution for reference signaling design and communication is needed. Summary of the Invention

[0003] The exemplary embodiments disclosed herein are intended to address problems related to one or more issues presented in the prior art, and to provide additional features that will become apparent when viewed in conjunction with the accompanying drawings by referring to 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 are not restrictive, and various modifications to the disclosed embodiments will be apparent to those skilled in the art who read this disclosure, while still remaining within the scope of this disclosure.

[0004] In one embodiment, a method performed by a wireless communication device includes: receiving downlink signaling indicating a power offset between the power of a synchronization signal and the power of a channel state information-reference signal (CSI-RS), and determining information about the synchronization signal.

[0005] In another embodiment, a method performed by a wireless communication device includes receiving downlink signaling indicating information about mobility measurement reference signal resources, wherein the information includes at least one of power information or retransmission information.

[0006] In another embodiment, a method performed by a wireless communication device includes: receiving downlink signaling indicating cell-related information, and determining neighboring cells for Layer 1 (L1) measurement reporting, wherein the cell-related information includes the physical cell index (PCI) of the determined neighboring cells.

[0007] In another embodiment, a method performed by a wireless communication device includes receiving downlink signaling indicating mobility-related information for reporting Layer 1 (L1) measurements.

[0008] In another embodiment, a method performed by a wireless communication device includes receiving downlink signaling indicating a set of reference signal resources of neighboring cells.

[0009] The above and other aspects, and their embodiments, are described in more detail in the accompanying drawings, description, and claims. Attached Figure Description

[0010] Various exemplary embodiments of this solution are described in detail below with reference to the figures or accompanying drawings. The drawings are provided for illustrative purposes only and depict only exemplary embodiments of this 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.

[0011] Figure 1 An example cellular communication network is shown, according to an embodiment of the present disclosure, in which the techniques and other aspects disclosed herein may be implemented.

[0012] Figure 2 Block diagrams of example base stations and user equipment terminals according to some embodiments of the present disclosure are shown.

[0013] Figure 3 A method of reference signaling according to some embodiments of the present disclosure is illustrated, the method of reference signaling including indicating a power offset between the power of a synchronization signal and a channel state information reference signal.

[0014] Figure 4 A method of reference signaling according to some embodiments of the present disclosure is illustrated, the method of reference signaling including information indicating mobility measurement reference signal resources.

[0015] Figure 5 A method of reference signaling according to some embodiments of the present disclosure is illustrated, the method of reference signaling including physical cell indexes indicating neighboring cells.

[0016] Figure 6 A method of reference signaling according to some embodiments of the present disclosure is shown, the method of reference signaling including indicating mobility-related information for Layer 1 measurement reporting.

[0017] Figure 7 A method of reference signaling according to some embodiments of the present disclosure is illustrated, the method of reference signaling including indicating a set of reference signal resources of neighboring cells.

[0018] Figure 8 Another method of reference signaling according to some embodiments of the present disclosure is shown, which includes indicating a power offset between the power of a synchronization signal and a channel state information reference signal.

[0019] Figure 9Another method of reference signaling according to some embodiments of the present disclosure is shown, which includes information indicating mobility measurement reference signal resources.

[0020] Figure 10 Another method of reference signaling according to some embodiments of the present disclosure is shown, which includes physical cell indexes indicating neighboring cells.

[0021] Figure 11 Another method of reference signaling according to some embodiments of the present disclosure is shown, which includes indicating mobility-related information for Layer 1 measurement reporting.

[0022] Figure 12 Another method of reference signaling according to some embodiments of the present disclosure is shown, which includes indicating reference signal resource sets of neighboring cells.

[0023] Figure 13 Another method of reference signaling according to some embodiments of this disclosure is shown. Detailed Implementation

[0024] Various exemplary embodiments of this solution are described below with reference to the accompanying drawings to enable those skilled in the art to create and use this solution. It will be apparent to those skilled in the art that 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 still remaining within the scope of this solution. Therefore, those skilled in the art should understand that the methods and techniques disclosed herein present various steps or actions in an example sequence, and this solution is not limited to the presented specific order or hierarchy, unless otherwise expressly stated.

[0025] To accelerate UE mobility, rapid measurement reporting of neighboring cells is advantageous. As an example, if the gNodeB (gNB) uses Radio Resource Control (RRC) to configure neighboring cells, it may be necessary for the gNB to configure too many neighboring cells. In this example, the gNB cannot distinguish which neighboring cells are good and usable for the UE, resulting in unnecessary signaling overhead. Furthermore, the gNB may notify neighboring cells after it has received mobility reports from the wireless communication device or user equipment (UE) and added latency. Therefore, reducing signaling latency and maintaining reasonable signaling overhead for notifying neighboring cell information is advantageous. Another advantage for the UE is reporting Layer 1 (L1) measurements for neighboring cells notified by the gNB.

[0026] Figure 1 An example wireless communication network and / or system 100, according to embodiments of the present disclosure, in which the technologies disclosed herein may be implemented, is illustrated. In the following discussion, 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 referred to herein as "network 100". This example network 100 includes base station 102 (hereinafter "BS 102") and user equipment terminal 104 (hereinafter "UE 104"), which may communicate with each other via communication link 110 (e.g., a wireless communication channel), and cell clusters 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, which operates within its allocated bandwidth to provide sufficient radio coverage to its intended users.

[0027] For example, BS 102 can operate within 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 can include data symbols 122 / 128. In this disclosure, BS 102 and UE 104 are described herein as non-limiting examples of "communication nodes," which can generally practice the methods disclosed herein. According to various embodiments of this solution, such communication nodes can be capable of wireless and / or wired communication.

[0028] Figure 2A 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., sent and received), as described above.

[0029] System 200 typically includes a base station 202 (hereinafter referred to as "BS 202") and a user equipment terminal 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.

[0030] As will be understood by those skilled in the art, system 200 may also include, in addition to Figure 2 Any number of modules other than those shown. 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 in terms of 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 in a suitable manner for each specific application; however, such implementation decisions should not be construed as limiting the scope of this disclosure.

[0031] According to some embodiments, the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210, which includes an RF transmitter and an RF receiver, each of which includes circuitry coupled to an antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in a time-duplex manner. The operation of the two transceiver modules 210 and 230 can be coordinated in time, such that while the downlink transmitter is coupled to the downlink antenna 212, the uplink receiver circuitry is coupled to the uplink antenna 232 to receive transmissions via the wireless transmission link 250. In some embodiments, there is tight time synchronization with a minimum guard time between changes in duplex direction.

[0032] 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 appropriately configured to support specific wireless communication protocols and modulation schemes. In some illustrative embodiments, UE transceiver 230 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 in application to specific standards and associated 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.

[0033] According to various embodiments, for example, 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 as 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, 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.

[0034] 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 214 and 236 respectively, such that processor modules 214 and 236 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 214 and 236. 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 to be executed by processor modules 214 and 236 respectively. Memory modules 216 and 234 may each include non-volatile memory for storing instructions to be executed by processor modules 214 and 236, respectively.

[0035] 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 station 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 typical, non-limiting deployment, network communication module 218 provides an 802.3 Ethernet interface, allowing base station 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 as,” and variations thereof, as 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 a specified operation or function.

[0036] Figure 3 A method for reference signaling according to some embodiments of the present disclosure is illustrated, the method including indicating a power offset between the power of a synchronization signal and a channel state information reference signal. In some embodiments, at least one of BS202 and UE201 performs method 300 according to the present embodiment. Method 300 includes one or more of steps 310, 320, 322, 324, 326, and 328. It should be understood that method 300 includes or may include a subset or all of steps 310, 320, 322, 324, 326, and 328.

[0037] In some implementations, the gNB configures a power offset from the NZP CSI-RS RE (Resource Element) to the SSS (Secondary Synchronization Signal) RE for the NZP CSI-RS resources. The UE determines the third information of the SSS. This third information includes at least one of power, PCI, MeasObject, serving cell, and frequency location. The third information of the SSS is the third information of the block corresponding to the SSS / PBCH.

[0038] In some implementations, if an SS / PBCH is configured in the serving cell of the NZP-CSI-RS, the third information of the SSS is obtained based on the third information of the SS / PBCH configured for that serving cell. For a serving cell of the NZP-CSI-RS that does not have an SS / PBCH configured, the UE determines that the third information of the SSS is the third information of the SS / PBCH configured for a specific serving cell (i.e., the primary cell or primary second cell of the serving cell group). Alternatively, the UE determines that the third information of the SSS is the third information of the SS / PBCH configured for a serving cell in the serving cell group that has an SS / PBCH configuration. Alternatively, the UE determines that the third information of the SSS is the third information of the SS / PBCH configured for any serving cell with an SS / PBCH configuration in the frequency band of the serving cell of the CSI-RS; alternatively, the UE determines that the third information of the SSS is the third information of the SS / PBCH configured for the serving cell with the lowest serving cell index among the serving cells with an SS / PBCH configuration in the frequency band of the serving cell of the CSI-RS. If a serving cell (e.g., the serving cell of NZP-CSI-RS or a specific cell) is associated with more than one group of SS / PBCHs with third information, the UE determines the third information of the SSS based on the third information of the SS / PBCHs configured in the serving cell common configuration (such as ServingCellConfigureCommon or SIB). Alternatively, the gNB uses this third information to configure power offset. Alternatively, the UE selects one group of SS / PBCHs from the more than one group, and the UE determines the third information of the SSS based on the third information of the SS / PBCHs associated with the selected group.

[0039] When the gNB uses this third information to configure the power offset, the gNB can configure the third information for each CSI-RS resource. The gNB can also configure the third information for a set of CSI-RS resources to associate each CSI-RS resource in the set with the same third information. In some embodiments, the third information for a CSI-RS resource may be the third information of the QCL-RS of the CSI-RS resource. In some embodiments, the third information for a mobility CSI-RS resource may be the third information corresponding to the PCI of the mobility CSI-RS resource. In some embodiments, the power offset is the ratio of the NZP CSI-RS EPRE (energy per resource unit) (e.g., power) to the SS / PBCH block EPRE. In some embodiments, the SS / PBCH block is the timing of the physical broadcast channel (PBCH), PSS (Primary synchronization signal), and SSS in a continuous symbol.

[0040] Figure 4 A method for reference signaling according to some embodiments of the present disclosure is illustrated, the method including information indicating mobility measurement reference signal resources. In some embodiments, at least one of BS 202 and UE 201 performs method 400 according to the present embodiment. Method 400 includes one or more of steps 410, 420, 422, 424, 426, and 428. It should be understood that method 400 includes or may include a subset or all of steps 410, 420, 422, 424, 426, and 428.

[0041] In some implementations, the gNB configures power information for mobility reference signaling resources. This power information can be configured for a mobility reference signaling resource or for a set of mobility reference signaling resources. Alternatively, for PCI, all mobility reference signaling resources associated with PCI have the same power.

[0042] In some implementations, the gNB configures retransmission information for the mobility reference signaling resource set. When retransmission is configured "on," the transmit spatial domain filters for all mobility measurement reference signaling resources in the set are identical. When retransmission is configured "off," the transmit spatial domain filters for all mobility measurement reference signaling resources in the set are different. The gNB configures retransmission information for the PCI. All mobility reference signaling resources associated with the PCI share this retransmission information. In some implementations, the mobility reference signaling resource set includes all mobility reference signaling resources associated with the PCI.

[0043] Figure 5 A method of reference signaling according to some embodiments of the present disclosure is illustrated, the method of reference signaling including indicating physical cell indexes of neighboring cells. In some embodiments, at least one of BS 202 and UE 201 performs method 500 according to the present embodiment. Method 500 includes one or more of steps 510, 520, 530, 540, 550, 560, and 570. It should be understood that method 500 includes or may include a subset or all of steps 510, 520, 530, 540, 550, 560, and 570.

[0044] In some implementations, the gNB uses first signaling to notify the UE of first information for L1 measurement information reporting or for reference signal resources. This first information includes a PCI (physical cell index), and the first signaling includes at least one of MAC-CE and DCI. In some implementations, the first information may also include one of MeasObjectID, MeasID, and frequency information. This first information pertains to neighboring cells. The PCI can be an absolute value or a relative value. When it is a relative value, the PCI in the first signaling is a local index within a set of PCIs. This set of PCIs can be configured by the gNB using RRC. For example, the gNB sends the first signaling to the UE. This first signaling is used to configure first information for CSI (channel state information) reporting, such as CSI-ReportConfigure. The first signaling can also be used to activate CSI reporting associated with CSI-ReportConfigure. In some implementations, the first signaling is also used to activate or deactivate CSI reporting.

[0045] In some implementations, when the gNB configures first information for CSI-ReportConfigure using first signaling, the UE obtains the CMR and IMR of CSI-ReportConfigure based on reference signaling resources (such as reference signaling resources for mobility) configured in MeasObject and associated with the first information configured by the first signaling. The UE ignores the CMR (Channel Measurements resource) and IMR (Interference Measurements resource) configured in CSI-ReportConfigure. Alternatively, when the gNB configures CSI-ReportConfigure using RRC signaling, the gNB does not configure CMR and / or IMR for that CSI-ReportConfigure. Alternatively, the reference signaling resource index configured in CSI-ReportConfigure by RRC is the index of the reference signaling resources for mobility configured in MeasObject. In some implementations, the UE is unaware of the PCIs of CMR and IMR, therefore the UE does not know CMR and IMR through RRC, because each PCI in MeasObject can be associated with a set of reference signaling resources. The UE can then obtain CMR and IMR until it receives MAC-CE and / or DCI. The UE obtains other parameters for L1 measurement information reporting (such as PUCCH resources, time-domain behavior of L1 measurement information reporting, and reporting quantity) according to CSI-ReportConfigure. In some implementations, L1 measurement reporting is included in UCI (uplink control information).

[0046] In some implementations, when the gNB uses the first signaling to configure first information for CSI-ReportConfigure, the UE obtains QCL reference signal resources for the CMR and / or IMR of CSI-ReportConfigure. In some implementations, the QCL reference signal resources are reference signals associated with the first information. In some implementations, when the gNB uses the first signaling to configure first information for CSI-ReportConfigure, the UE obtains the timing of the CMR and / or IMR of CSI-ReportConfigure based on the first information.

[0047] The first signaling may include one or more first pieces of information. When the first signaling includes more than one piece of first information, the UE selects one piece of first information and reports both the L1 measurement information associated with the selected first information and the selected first information itself. In another implementation, when the first signaling includes more than one piece of first information, the UE reports the L1 measurement result for each piece of first information.

[0048] Similarly, if the first signaling configures first information for reference signal resources, the UE obtains the reference signal resources based on the first information. For example, the reference signal is a reference signal associated with the first information and configured in a MeasObject. The UE can also obtain the timing and / or QCL reference signal resources of the reference signal based on the first information. The first signaling can also configure a set of reference signal resources with a single piece of the first information. In some embodiments, retransmission of the reference signal resource set is configured to be "on". In some embodiments, the first signaling is also used to activate or deactivate reference signal resources (such as CSI-RS and SSB).

[0049] In some implementations, L1 measurement information reporting is not associated with any CSI-Reporting. Therefore, in some implementations, a first signaling instruction indicates to the UE that its L1 measurement information needs to be reported to the neighboring cells of the gNB. The UE reports the L1 measurement information associated with this first information in the MAC-CE. This L1 measurement includes at least one of L1-SINR, L1-RSRP, CQI, and PMI. The L1 measurement associated with a piece of this first information is either an L1 measurement of the cell containing the first information or an L1 measurement of the reference signal resources of the cell containing the first information.

[0050] L1 measurement information includes at least one of L1-SINR, L1-RSRP, CQI, PMI, and a reference signal resource index. The reference signal resource index in the L1 measurement information corresponds to one L1 measurement of the L1 measurement information. Alternatively, L1 measurements (such as L1-SINR, L1-RSRP, CQI, PMI) of the reference signal resource index in the L1 measurement information are not included in the L1 measurement information and are above a threshold.

[0051] The first signaling used to activate SP CSI-Reporting and MAC-CE can share the same LCID (Logical Channel Identifier), which is in the MAC sub-header. The first signaling includes information indicating which parameter set from the two parameter sets is included in the first signaling. The first parameter set includes first information. The second parameter set includes the serving cell index, BWP index, and CSI-Reporting index. The first parameter set may also include the first information and the CSI-Reporting index. The index can be an integer, or more than one index can be notified using a bitmap. In some implementations, the gNB provides the first information for aperiodic L1 measurement information reporting or reference signal resource configuration.

[0052] Figure 6 A method of reference signaling according to some embodiments of the present disclosure is illustrated, the method of reference signaling including indicating mobility-related information for Layer 1 measurement reporting. In some embodiments, at least one of BS 202 and UE 201 performs method 600 according to the present embodiment. Method 600 includes one or more of steps 610, 620, 630, and 640. It should be understood that method 600 includes or may include a subset or all of steps 610, 620, 630, and 640.

[0053] In some implementations, the gNB notifies the UE of second information for reporting L1 measurement information, wherein the second information includes at least one of MeasID, MeasObject, and serving cell index. In some implementations, the UE selects one or more PCIs from a set of PCIs associated with the second information, and the UE reports the selected PCIs and L1 measurement information for each selected PCI. The set of PCIs associated with the serving cell is the set of PCIs associated with a MeasObject associated with the serving cell. The set of PCIs associated with a MeasObject is the set of PCIs whose parameters are configured in the MeasObject. The gNB notifies the UE of the second information using at least one of RRC signaling, MAC-CE signaling, or DCI. The RRC signaling / MAC-CE / DCI can notify more than one piece of second information for more than one serving cell or for more than one group of SSBs within a serving cell.

[0054] Figure 7A reference signaling method according to some embodiments of the present disclosure is illustrated, the reference signaling method including indicating a reference signal resource set of neighboring cells. In some embodiments, at least one of BS 202 and UE 201 performs method 700 according to the present embodiment. Method 700 includes one or more of steps 710 and 720. It should be understood that method 700 includes or may include a subset or all of steps 710 and 720.

[0055] The gNB uses MAC-CE to configure the reference signal resource set of neighboring cells. For example, the gNB uses MAC-CE to configure the SSB group of neighboring cells. For an SSB group, MAC-CE includes at least one of first information, SSB block selection information (such as ssb-PositionsInBurst), periodicity, and power. The UE uses these SSBs to determine measurement reference signal resources or to determine the available resource elements (i.e., available subcarriers) of a channel, wherein the channel includes at least one of PDSCH, PDCCH, PUCCH, and PUSCH.

[0056] In some implementations, the offset between the DL DCI and the corresponding PDSCH reception is less than the threshold timeDurationForQCL, and at least one configured TCI state of the serving cell used for scheduling the PDSCH contains 'QCL-TypeD'. The UE is configured with enableDefaultTCIStatePerCoresetPoolIndex-r16, and the UE is configured by the higher-layer parameter PDCCH-Config, which contains two different values ​​for CORESETPoolIndex in different ControlResourceSets. Then, in some implementations, the UE assumes that the DM-RS port of the PDSCH associated with the value of the serving cell's CORESETPoolIndex is quasi-co-located with one or more RSs relative to one or more QCL parameters for the PDCCH quasi-co-location indication for the CORESET (which is associated with the monitored search space with the lowest controlResourceSetId in the CORESET). In some implementations, the CORESET is configured in the latest time slot with the same CORESETPoolIndex value as the PDCCH that schedules the PDSCH, where one or more CORESETs are associated with the same CORESETPoolIndex value as the PDCCH that schedules the PDSCH within the active BWP of the serving cell monitored by the UE. In this case, if the 'QCL-TypeD' of the PDSCH DM-RS is different from the 'QCL-TypeD' of the PDCCH DM-RS that overlaps in at least one symbol, and they are associated with the same CORESETpoolindex, the UE is expected to preferentially receive the PDCCH associated with that CORESET. This also applies to the case of in-band CA (when the PDSCH and CORESET are in different component carriers).

[0057] If the offset between the DL DCI and the corresponding PDSCH reception is less than the threshold timeDurationForQCL, and at least one configured TCI state of the serving cell used for scheduling PDSCH contains 'QCL-TypeD', and if the UE is configured with enableTwoDefaultTCIStates-r16, and at least one TCI code point indicates two TCI states, then the UE may assume that the DM-RS port of the serving cell's PDSCH or PDSCH transmission timing is quasi-co-located with one or more RSs relative to one or more QCL parameters associated with the TCI state corresponding to the lowest code point among the TCI code points containing two different TCI states. When the UE is configured with the higher-layer parameter repetitionScheme-r16 set to "TDMSchemeA" or with the higher-layer parameter repetitionNumber-r16, according to clause 5.1.2.1, the mapping from TCI state to PDSCH transmission timing is determined by replacing the indicated TCI state with the TCI state corresponding to the lowest code point among two different TCI states, based on the TCI state activated in the time slot with the first PDSCH transmission timing. In this case, if the 'QCL-TypeD' of the two TCI states corresponding to the lowest code point among two different TCI states is different from the 'QCL-TypeD' of the PDCCH DM-RS that overlaps in at least one symbol, the UE is expected to preferentially receive the PDCCH associated with that CORESET. This also applies to the case of in-band CA (when the PDSCH and CORESET are in different component carriers).

[0058] Figure 8 Another method of reference signaling according to some embodiments of the present disclosure is illustrated, which includes indicating a power offset between the powers of a synchronization signal and a channel state information reference signal. In some embodiments, at least one of BS 202 and UE 201 performs method 800 according to the present embodiment. Method 800 includes one or more of steps 810 and 820. It should be understood that method 800 includes or may include a subset or all of steps 810 and 820. In some embodiments, one or more steps of method 800 correspond to one or more steps or portions thereof of method 300.

[0059] Figure 9Another method of reference signaling according to some embodiments of the present disclosure is illustrated, which includes information indicating mobility measurement reference signal resources. In some embodiments, at least one of BS 202 and UE 201 performs method 900 according to the present embodiment. Method 900 includes one or more of steps 910 and 920. It should be understood that method 900 includes or may include a subset or all of steps 910 and 920. In some embodiments, one or more steps of method 900 correspond to one or more steps or portions thereof of method 400.

[0060] Figure 10 Another method of reference signaling according to some embodiments of the present disclosure is illustrated, which includes indicating physical cell indexes of neighboring cells. In some embodiments, at least one of BS 202 and UE 201 performs method 1000 according to the present embodiment. Method 1000 includes one or more of steps 1010 and 1020. It should be understood that method 1000 includes or may include a subset or all of steps 1010 and 1020. In some embodiments, one or more steps of method 1000 correspond to one or more steps or portions thereof of method 500.

[0061] Figure 11 Another method of reference signaling according to some embodiments of the present disclosure is illustrated, which includes indicating mobility-related information for Layer 1 measurement reporting. In some embodiments, at least one of BS 202 and UE 201 performs method 1100 according to the present embodiment. Method 1100 includes step 1110. In some embodiments, one or more steps of method 1100 correspond to one or more steps or portions thereof of method 600.

[0062] Figure 12 Another method of reference signaling according to some embodiments of the present disclosure is illustrated, which includes indicating reference signal resource sets of neighboring cells. In some embodiments, at least one of BS 202 and UE 201 performs method 1200 according to the present embodiment. Method 1200 includes step 1210. In some embodiments, one or more steps of method 1200 correspond to one or more steps or portions thereof of method 700.

[0063] Figure 13Another method of reference signaling according to some embodiments of the present disclosure is illustrated. In some embodiments, at least one of BS 202 and UE 201 performs method 1300 according to the present embodiment. Method 1300 includes at least one of steps 1302, 1310, 1320, 1330, and 1340. In some embodiments, one or more steps of method 1300 correspond to one or more steps or portions thereof of at least one of methods 300, 400, 500, 600, and 700.

[0064] 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 should understand that the present 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 should 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 by any of the illustrative embodiments described above.

[0065] It should also be understood that any reference to elements using names such as "first" or "second" in this document generally does not restrict the number or order of these elements. Rather, these names may be used as a convenient means of distinguishing two or more elements or instances of elements. Therefore, the reference to the first element and the second element does not imply that only two elements can be used, or that the first element must somehow precede the second element.

[0066] 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 referenced in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0067] Those skilled in the art will also understand that any of the various illustrative logic blocks, modules, processors, devices, circuits, methods, and functions described in connection 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, various illustrative components, blocks, modules, circuits, and steps have been generally described above in accordance with their functions. Whether such a function is implemented as hardware, firmware, software, or a combination of these technologies depends on the specific application and the 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 lead to a departure from the scope of this disclosure.

[0068] 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 communication with various components within a network or device. A general-purpose processor may be a microprocessor, but in alternative embodiments, 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 to perform the functions described herein.

[0069] 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, with communication media including any medium that enables the transfer of computer programs or code from one place to another. Storage media can be any available medium that is 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 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 is accessible to a computer.

[0070] In this application, the term "module" as used herein refers to software, firmware, hardware, and any combination of such elements for performing the relevant 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 the present solution.

[0071] Additionally, in embodiments of this solution, memory or other storage and communication components may be employed. It should be understood that, for clarity, the above description has referenced various functional units and processors to 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, functions shown to be 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 the described functions and not indications of a strict logical or physical structure or organization.

[0072] 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. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the broadest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. A wireless communication method, wherein the wireless communication method is performed by a wireless communication device, and comprises: Receive downlink signaling from a wireless communication node, wherein the downlink signaling indicates a power offset between the power of a synchronization signal and the power of a channel state information-reference signal (CSI-RS), the synchronization signal including a secondary synchronization signal, and the power of the synchronization signal including the power of the secondary synchronization signal; and The information of the synchronization signal is determined based on the parameters of the quasi-co-location reference signal (QCL-RS) of the CSI-RS, wherein the information includes the physical cell index (PCI) of the secondary synchronization signal and the power of the secondary synchronization signal.

2. The wireless communication method according to claim 1, wherein, When the synchronization signal belongs to a synchronization signal group among multiple synchronization signal groups, the wireless communication method further includes: Selecting the synchronization signal group from the plurality of synchronization signal groups used for serving the cell; and The power of the synchronization signal is determined to be the power of the synchronization signal in the synchronization signal group. Each of the plurality of synchronization signal groups is associated with the power information of the PCI and the synchronization signals in the respective synchronization signal group.

3. The wireless communication method according to claim 1, wherein, The power offset is the ratio of the energy per resource unit (EPRE) of the non-zero power (NZP) CSI-RS to the EPRE power of the synchronization signal block.

4. A wireless communication device, comprising: At least one processor, said processor being configured to: Downlink signaling is received from a wireless communication node via a receiver, wherein the downlink signaling indicates a power offset between the power of a synchronization signal and the power of a channel state information-reference signal (CSI-RS), the synchronization signal including a secondary synchronization signal, and the power of the synchronization signal including the power of the secondary synchronization signal; and The information of the synchronization signal is determined based on the parameters of the quasi-co-location reference signal (QCL-RS) of the CSI-RS, wherein the information includes the physical cell index (PCI) of the secondary synchronization signal and the power of the secondary synchronization signal.

5. The wireless communication device according to claim 4, wherein, When the synchronization signal belongs to a synchronization signal group among multiple synchronization signal groups, the at least one processor is configured to: Selecting the synchronization signal group from the plurality of synchronization signal groups used for serving the cell; and The power of the synchronization signal is determined to be the power of the synchronization signal in the synchronization signal group. Each of the plurality of synchronization signal groups is associated with the power information of the PCI and the synchronization signals in the respective synchronization signal group.

6. The wireless communication device according to claim 4, wherein, The power offset is the ratio of the energy per resource unit (EPRE) of the non-zero power (NZP) CSI-RS to the EPRE power of the synchronization signal block.

7. A wireless communication method, said wireless communication method being performed by a wireless communication node, and comprising: Downlink signaling is transmitted from the wireless communication node to the wireless communication device, wherein the downlink signaling indicates the power offset between the power of a synchronization signal and the power of a channel state information-reference signal (CSI-RS), the synchronization signal including a secondary synchronization signal, and the power of the synchronization signal including the power of the secondary synchronization signal. The parameters of the quasi-co-address reference signal (QCL-RS) of the CSI-RS are used by the wireless communication device to determine information about the synchronization signal, wherein the information includes the physical cell index (PCI) of the secondary synchronization signal and the power of the secondary synchronization signal.

8. The wireless communication method according to claim 7, wherein, When the synchronization signal belongs to a synchronization signal group among multiple synchronization signal groups, the synchronization signal group is selected from the multiple synchronization signal groups used for serving the cell, and the power of the synchronization signal is determined to be the power of the synchronization signal in the synchronization signal group. Each of the plurality of synchronization signal groups is associated with the PCI and the respective power information of the synchronization signals in the respective synchronization signal group.

9. The wireless communication method according to claim 7, wherein, The power offset is the ratio of the energy per resource unit (EPRE) of the non-zero power (NZP) CSI-RS to the EPRE power of the synchronization signal block.

10. A wireless communication node, comprising: At least one processor, said processor being configured to: Downlink signaling is transmitted from the wireless communication node to the wireless communication device via a transmitter. This downlink signaling indicates the power offset between the power of a synchronization signal and the power of a channel state information-reference signal (CSI-RS). The synchronization signal includes a secondary synchronization signal, and the power of the synchronization signal includes the power of the secondary synchronization signal. The parameters of the quasi-co-address reference signal (QCL-RS) of the CSI-RS are used by the wireless communication device to determine information about the synchronization signal, wherein the information includes the physical cell index (PCI) of the secondary synchronization signal and the power of the secondary synchronization signal.

11. The wireless communication node according to claim 10, wherein, When the synchronization signal belongs to a synchronization signal group among multiple synchronization signal groups, the synchronization signal group is selected from the multiple synchronization signal groups used for serving the cell, and the power of the synchronization signal is determined to be the power of the synchronization signal in the synchronization signal group. Each of the plurality of synchronization signal groups is associated with the PCI and the respective power information of the synchronization signals in the respective synchronization signal group.

12. The wireless communication node according to claim 10, wherein, The power offset is the ratio of the energy per resource unit (EPRE) of the non-zero power (NZP) CSI-RS to the EPRE power of the synchronization signal block.

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