Sidelink transmission and round trip time positioning

Abstract

Sidelink-based communications include communications between devices (“UEs”) and / or with a base station. Sidelink communications can include certain sidelink information from a communicating device, including UE information, positioning / location information, or other capabilities for sidelink communications. The sidelink information communicated over sidelink communications can be modified based on a priority determination or a position reference signal (PRS). There can be a mapping or association of the configuration communicated over sidelink communications.

Description

Technical Field

[0001] This document generally deals with wireless communication. More specifically, wireless communication includes communication of side link information. Background Technology

[0002] Wireless communication technology is propelling the world towards an increasingly interconnected and networked society. Wireless communication relies on efficient network resource management and allocation between user mobile stations and wireless access network nodes (including but not limited to wireless base stations). Next-generation networks promise to provide high-speed, low-latency, and ultra-reliable communication capabilities, meeting the requirements of diverse industries and users. User mobile stations or user equipment (UEs) are becoming increasingly complex, and the amount of data they communicate is constantly increasing. With the development of wireless multimedia services, the demand for high-data-rate services, as well as the system capacity and coverage requirements of conventional cellular networks, are increasing. Furthermore, the use of public safety, social networks, short-range data sharing, and local advertising is increasing, along with other demands for proximity services that enable people to communicate with neighboring people or objects. Device-to-device (D2D) communication technology can meet these needs. To improve communication, meet the reliability requirements of vertical industries, and support next-generation network services, D2D communication should be improved. Summary of the Invention

[0003] This document relates to methods, systems, and devices for sidelink communication between devices. Sidelink-based communication includes communication between devices (“UEs”) and / or with a base station. Sidelink communication may include certain sidelink information from the communication device, including UE information, location / position information, or other capabilities for sidelink communication. The sidelink information used for communication via sidelink communication may be modified based on priority determination or a location reference signal (PRS). The configuration for communication via sidelink communication may have mappings or associations.

[0004] In one embodiment, a method for wireless communication includes: communicating sidelink information by a first communication device. The communication is from the first communication device to a second communication device. The communication is from the first communication device to a third communication device via a fourth communication device. The communication includes using at least one of the following: sending, receiving, broadcasting, unicasting, requesting, responding, forwarding, switching, or multicasting.

[0005] In some embodiments, the sidelink information includes at least one of the following: User Equipment ID (UEID), positioning information, location information, measurement results, UE capabilities, UE information within its coverage area, area ID, response time, response period, sidelink positioning reference signal (SL-PRS) configuration, synchronization information, Rx-Tx time difference, number of Rx-Tx time differences, reference signal timing difference (RSTD), relative time of arrival (RTOA), timestamp, PRS resource ID, PRS resource set ID, beam information, angle information, positioning method information, control information information, positioning reference signal configuration, angle indication granularity, measurement gap configuration, resource capabilities for each positioning method, PRS processing capabilities, multi-round-trip time (multi-RTT) measurement capabilities, UEPRS quasi-co-location (QCL) processing capabilities, TDOA provision capabilities, AoD provision capabilities, multi-RTT provision capabilities, additional path reporting capabilities, periodic reporting capabilities, and UE corresponding to the PRS resource / resource set for each measurement. The maximum number of Rx-Tx time difference measurements, whether the communication device supports RSRP measurement for multiple RTTs in FRx, the granularity of Rx-Tx time difference measurements for the communication device, RSRP or RSRP difference from (multiple) other auxiliary communication devices of the communication device to the reference communication device, UE measurement capability, multiple RTT measurement, list of communication devices, or angle indication method, where FRx refers to at least one of FR1, FR2, FR2-1, or FR2-2. The ability to communicate sidelink information or the UE capability includes at least one of the following: the ability to communicate with the network, the ability to calculate the location, the ability to send sidelink information to another communication device, the ability to receive sidelink information from another communication device, the ability to exchange signaling or interactive signaling with another communication device, the ability to forward sidelink information about another communication device, the ability to broadcast sidelink information, the ability to receive sidelink information from another communication device, network coverage capability, the ability to support positioning functions, the ability to communicate with the Positioning Reference Signal (PRS), the ability to support positioning method measurements, the ability to support non-periodic or semi-persistent PRS, the ability to broadcast sidelink information, the ability to communicate with (multiple) related Radio Resource Control (RRC) parameters, the ability to communicate control information, the ability to support multiple RTT methods, the ability to support multiple RTT measurement capabilities, or the ability to support positioning methods. The positioning method includes at least one of the following: network-assisted GNSS method, observation time difference of arrival (OTDOA) positioning, WLAN positioning, Bluetooth positioning, terrestrial beacon system (TBS) positioning, enhanced cell ID (ECID), multiple round trip time (multiple RTT), angle of departure (AoD), time difference of arrival (TDOA), or angle of arrival (AoA).

[0006] In some embodiments, communicating sidelink information includes at least one of the following: requesting sidelink information from a second communication device, requesting sidelink information from a third communication device, or requesting sidelink information from a fourth communication device. In some embodiments, communicating sidelink information includes at least one of the following: broadcasting sidelink information from a first communication device to at least a second communication device; unicasting sidelink information from the first communication device to at least a second communication device; multicasting sidelink information from the first communication device to at least a second communication device; broadcasting sidelink information from the first communication device to at least a fourth communication device; broadcasting sidelink information from the first communication device to at least a third communication device; broadcasting sidelink information from the fourth communication device to at least a third communication device; unicasting sidelink information from the first communication device to at least a fourth communication device; unicasting sidelink information from the first communication device to at least a third communication device; unicasting sidelink information from the fourth communication device to at least a third communication device; multicasting sidelink information from the first communication device to at least a fourth communication device; multicasting sidelink information from the first communication device to at least a third communication device; or multicasting sidelink information from the fourth communication device to at least a third communication device. The sidelink information or positioning information includes at least a sidelink positioning reference signal (SL-PRS) configuration. The SL-PRS configuration is indicated in control signaling, in a control channel, in (multiple) other channels, or in Radio Resource Control (RRC) parameters. The control signaling includes at least one of the following: Side-link Control Information (SCI), Downlink Control Information (DCI), Media Access Control Element (MAC CE), Non-Access Stratum (NAS), or System Information Block x (SIBx), where x is an integer. The control channel includes at least one of the following: Physical Side-link Control Channel (PSCCH), Physical Downlink Control Channel (PDCCH), or Physical Uplink Control Channel (PUCCH). (Multiple) other channels include at least one of the following: Physical Side-link Shared Channel (PSSCH), Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Broadcast Channel (PBCH), Physical Side-link Feedback Channel (PSFCH), or Physical Side-link Broadcast Channel (PSBCH). The request originates from at least one of the Non-Access Stratum (NAS), NAS layer, higher layers, or physical layer.

[0007] In some embodiments, the configuration of the sidelink information, positioning information, positioning reference signal, or sidelink positioning reference signal (SL-PRS) configuration includes at least one of the following: SL-PRS period, SL-PRS time resource, SL-PRS frequency resource, time gap between SL-PRS and the sidelink channel, minimum time gap between SL-PRS and the sidelink channel, SL-PRS hop ID, comb size, hop ID, first symbol of SL-PRS within a time slot, size of SL-PRS resource in the time domain, resource element offset, reference point, location of point A, combination of size of SL-PRS resource and comb size in the time domain, SL-PRS sequence ID, UE ID, SL-PRS sequence set information, SL-PRS frequency layer information, PSFCH configuration, CandidateResourceType, or physical broadcast set. The unit of SL-PRS period or SL-PRS time resource includes at least one of milliseconds, symbols, symbol sets, time slots, or time slot sets. The SL-PRS period is configured within at least one of the bandwidth portion (BWP), carrier frequency, or resource pool. The SL-PRS period is set to 0, which results in or indicates that no resources are available for SL-PRS. The SL-PRS period is a logical period. The SL-PRS period is associated with the PSFCH configuration. Both the SL-PRS and PSFCH configurations are configured in the resource pool.

[0008] In some embodiments, the sidelink channel includes at least one of the Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Feedback Channel (PSFCH), or Physical Sidelink Broadcast Channel (PSBCH). The unit of frequency resources in the SL-PRS includes at least one of Physical Resource Block (PRB), subchannel, or Resource Element (RE). The size of the SL-PRS resource in the time domain includes at least one of the following: the number of symbols(multiple) per SL-PRS resource, the number of symbols(multiple) of the SL-PRS resource, the number of symbols(multiple) configured per SL-PRS, or the number of symbols(multiple) configured in the SL-PRS. The SL-PRS resource or SL-PRS configuration includes at least one of the following: the number of symbols(multiple) per SL-PRS resource in a time slot, the number of symbols(multiple) configured per SL-PRS in a time slot, the number of symbols(multiple) of the SL-PRS resource in a time slot, or the number of symbols(multiple) configured in the SL-PRS in a time slot. The location of the reference point or point A includes at least one of the positioning frequency layer, BWP, or carrier frequency. The location of the reference point or point A is a parameter provided by a higher layer or SCI. The location of the reference point or point A is associated with at least one of the following: the lowest resource block (RB) index of the sidelink bandwidth portion (SL BWP), the lowest RB index of the subchannel with the lowest index in the resource pool, the lowest RB index of the SL carrier frequency, the lowest subchannel index in the resource pool, the lowest subchannel index of the SL BWP, or the lowest subchannel index of the SL carrier frequency. The SL-PRS hop ID refers to the scrambling ID of the sequence hop used for configuring the sidelink positioning reference signal (SL-PRS). The SL-PRS hop ID is used for the resource pool, BWP, or carrier frequency. The combination of the size of the SL-PRS resource and the comb size in the time domain is at least one of {2,2}, {4,2}, {6,2}, {12,2}, {4,4}, {12,4}, {6,6}, {12,6}, or {12,12}. The value of the SL-PRS sequence ID is associated with the value of the User Equipment Identifier (UEID). The SL-PRS sequence ID is used to initialize values ​​in a pseudo-randomization generator, which generates SL-PRS sequences for transmission on SL-PRS resources. Sidelink information, location information, or Sidelink Location Reference Signal (SL-PRS) configuration is configured by at least one of higher-layer parameters, Sidelink Control Information (SCI), or NAS parameters. Communication equipment includes User Equipment (UE), network nodes, base stations, local servers, Transmit / Receive Points (TRPs), or Location Management Functions (LMFs). Multiple SL-PRS periods are associated with time resources used in the sidelink resource pool, BWP, or carrier frequency.

[0009] In some embodiments, the configuration of the positioning reference signal includes one of periodicity, aperiodicity, or semi-persistence. The sidelink information or positioning information includes one of the following: multi-round-trip time (multi-RTT) positioning, positioning signals associated with multi-RTT positioning, a list of communication devices, Rx-Tx time differences of the communication devices, Rx-Tx time difference measurements, or parameters or a list of parameters used by a sixth communication device to provide multi-RTT measurements to a seventh communication device. For the list of communication devices, the first communication device in the list is used as a reference communication device. Parameters are used to provide auxiliary data to enable communication device assistance for multi-RTT. The communication device uses parameters to provide multi-RTT location measurements, wherein the location measurements are used to determine potential errors, and further, wherein the location measurements are provided as a list of communication devices. The communication device indicates its ability to support multi-RTT and provide multi-RTT positioning capabilities to an eighth communication device. The configuration of lateral link information, positioning information, positioning reference signal, or lateral link positioning reference signal (SL-PRS) is configured by at least one of the following: pre-configuration, via Radio Resource Control (RRC) configuration message, or via SIBx, where x is an integer. Communication includes: the first communication device requesting a recommended report granularity for the Rx-Tx time difference measurement of the first communication device from the second communication device.

[0010] In one embodiment, a method for wireless communication includes: determining a priority for a Sidelink Positioning Reference Signal (SL-PRS), and communicating the SL-PRS based on the determined priority. The priority for the SL-PRS is determined based on at least one of configuration, default, scenario, or indication. The determination establishes that the SL-PRS has the highest priority, for which communication prioritizes the SL-PRS before communicating with (a plurality of) other signals or channels. The determination establishes that the SL-PRS has the lowest priority, for which communication prioritizes any (a plurality of) other signals or channels before communicating with the SL-PRS. The priority for the SL-PRS is determined based on control signaling, which includes at least one of: Radio Resource Control (RRC), Media Access Control Element (MAC CE), Downlink Control Information (DCI), Non-Access Stratum (NAS), Sidelink Control Information (SCI), or System Information Block x (SIBx), where x is an integer. The determined priority includes integer values ​​between 1 and 8, where 1 is the highest priority and 8 is the lowest priority. Communication is from a first communication device to a second communication device. The first or second communication device includes one of a User Equipment (UE), a network node, a base station, a local server, a Transmit / Receive Point (TRP), or a Location Management Function (LMF). Communication also includes at least one of sending, receiving, broadcasting, unicasting, multicasting, forwarding, requesting, responding, or exchanging. The priority of the SL-PRS is configured by at least one of the following: higher-layer parameters, parameters in Radio Resource Control (RRC), parameters in Sidelink Control Information (SCI), parameters in Downlink Control Information (DCI), parameters in Media Access Control Element (MAC CE), Non-Access Stratum (NAS) layer parameters, or parameters in System Information Block x (SIBx), where x is an integer. The SL-PRS is used to calculate location. The determined priority for the SL-PRS includes at least one of the following: the priority for the SL-PRS is higher than that of the first group(s) of other signals or channels, or the priority for the SL-PRS is lower than that of the second group(s) of other signals or channels. Communication cancellation prioritizes SL-PRS and proceeds after the second group(s) of other signals or channels. Communication prioritizes SL-PRS and proceeds before the first group(s) of other signals or channels. The first group of other signals does not overlap with the second group(s) of other signals and channels.

[0011] In another embodiment, a method for wireless communication includes communicating via a sidelink, a non-zero power positioning reference signal (PRS), or a zero-power PRS, or configuring via a sidelink, a non-zero power positioning reference signal (PRS), or a zero-power PRS. The communication or configuration includes a non-zero power PRS and a zero-power PRS. The non-zero power PRS or zero-power PRS is periodic, semi-persistent, or aperiodic. The zero-power PRS includes priority or rate matching using the SL-PRS. The time or frequency resources of the non-zero power positioning reference signal (PRS) or zero-power PRS are configured via control signaling. The method also includes determining whether the non-zero power PRS or zero-power PRS overlaps with (a plurality of) signals or channels, and modifying the communication based on the determination. When overlap or partial overlap exists, the modification includes not transmitting the non-zero power PRS or zero-power PRS. When it is determined that the non-zero power PRS or zero-power PRS at least partially overlap, the modification includes partial transmission.

[0012] In another embodiment, the method further includes: determining the priority of a non-zero power PRS or a zero power PRS based on a comparison with (a plurality of) signals or channels, and modifying the communication based on the determined priority. Rate matching is performed using (multiple) signals or channels, including at least one of the following: data signals, control signals, demodulation reference signals (DM-RS), feedback signals, demodulation reference signals (DM-RS), (multiple) phase tracking reference signals (PT-RS), channel state information reference signals (CSI-RS), primary synchronization signals (PSS), secondary synchronization signals (SSS), probe reference signals (SRS), sidelink primary synchronization signals (S-PSS), sidelink secondary synchronization signals (S-SSS), physical sidelink control channel (PSCCH), physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), physical sidelink shared channel (PSSCH), physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH), physical broadcast channel (PBCH), physical sidelink feedback channel (PSFCH), or physical sidelink broadcast channel (PSBCH). Time or frequency resources are used only for zero-power PRS communication. The control signaling is included in at least one of the following: sidelink control information (SCI), downlink control information (DCI), media access control element (MAC CE), non-access stratum (NAS), or system information block x (SIBx), where x is an integer.

[0013] In one embodiment, a method for wireless communication includes: associating or mapping a set of data configurations(s) to a set of location configurations(s), and communicating via a sidelink based on the mapping or association. The set of data configurations(s) includes one or more data configurations. The set of location configurations(s) includes one or more location configurations. Communication includes at least one of transmitting, receiving, broadcasting, unicasting, multicasting, forwarding, requesting, responding, or exchanging. The set of data configurations(s) or the set of location configurations(s) includes at least one of the following, or at least one of the following: a bandwidth portion (BWP), a carrier frequency, a resource pool, or a timing. The set of data configurations(s) can be configured in a bandwidth portion (BWP), a carrier frequency, or a resource pool. The set of location configurations(s) can be configured in a bandwidth portion (BWP), a carrier frequency, or a resource pool. The set of data configurations(s) can be configured in one or more bandwidth portions (BWP), one or more carrier frequencies, or one or more resource pools. The set of location configurations(s) can be configured in one or more bandwidth portions (BWP), one or more carrier frequencies, or one or more resource pools. The group(s) of data configurations or the group(s) of positioning configurations are: pre-configured, configured by Radio Resource Control (RRC) configuration messages, configured by Side Link Control Information (SCI) parameters, configured by Downlink Control Information (DCI) parameters, configured by Media Access Control Element (MAC CE) parameters, configured by Non-Access Stratum (NAS) parameters, or configured by System Information Block x (SIBx) parameters, where x is an integer.

[0014] In some embodiments, mapping or association includes a mapping or association ratio, the group(s) of data configurations, or the group(s) of location configurations. The mapping or association ratio includes at least one of the ratio of the group(s) of data configurations to the group(s) of location configurations, or the ratio of the group(s) of location configurations to the group(s) of data configurations. The value of the mapping or association ratio is at least one of 1:M, N:1, or M:N, where M and N are integers. Mapping or association includes the transmission, indication, sensing, or selection of the group(s) of location configurations based on the mapping or association of the group(s) of data configurations. The group(s) of data configurations or the group(s) of location configurations is indicated or triggered by a parameter or set of parameters from at least one of: Sidelink Control Information (SCI) parameters, Radio Resource Control (RRC), Downlink Control Information (DCI), Media Access Control Element (MAC CE), Non-Access Stratum (NAS), Higher Layer or System Information Block x (SIBx), where x is an integer. The group(s) of data configurations is indicated or triggered by a parameter or set of parameters. A parameter or set of parameters is associated with or mapped to this group(s) of positioning configurations. This group(s) of data configurations and the mapped or associated(s) of positioning configurations are configured or triggered by one or more Side Link Control Information (SCIs), (multiple) parameters, or (multiple) parameter sets. This group(s) of positioning configurations is indicated or triggered by (multiple) parameters or parameter sets. A parameter or set of parameters is associated with or mapped to this group(s) of data configurations. This group(s) of positioning configurations and the mapped or associated(s) of data configurations are configured or triggered by one or more Side Link Control Information (SCIs), (multiple) parameters, or (multiple) parameter sets. The group(s) of positioning configurations triggered may differ from the group(s) of mapping or associated(s). The group(s) of mapping or associated(s) of positioning configurations may be in one of the following: one or more Bandwidth Parts (BWPs), one or more carrier frequencies, or one or more resource pools. The group(s) of positioning configurations triggered may be in one of the following: one or more Bandwidth Parts (BWPs), one or more carrier frequencies, or one or more resource pools. The data configuration(s) triggered by this group can differ from the data configuration(s) mapped or associated in this group. The data configuration(s) mapped or associated in this group can be one of the following: one or more bandwidth portions (BWPs), one or more carrier frequencies, or one or more resource pools.

[0015] In some embodiments, a parameter or set of parameters from at least one of the following: Sidelink Control Information (SCI) parameters, Radio Resource Control (RRC), Downlink Control Information (DCI), Media Access Control Element (MAC CE), Non-Access Stratum (NAS), Higher Layer or System Information Block x (SIBx), is indicated by at least one of the following: Sidelink Positioning Resource Signal (SL-PRS) resource pool index, one or more PRS periods, PRS time resources, PRS frequency resources, PRS priority, deactivation / activation parameters, PRS time resources, PRS frequency resources, time gap between PRS and sidelink channel, minimum time gap between PRS and sidelink channel, SL-PRS hop ID, comb size, hop ID, first symbol of PRS within a time slot, size of SL-PRS resource in the time domain, resource element offset, reference point, location of point A, combination of size of PRS resource and comb size in the time domain, PRS sequence ID, PRS sequence set information, PRS frequency layer information, resource ID / index, carrier frequency ID / index, BWP ID / index, resource set ID / index, or frequency layer ID / index. Multiple PRS periods are associated with the resource reservation interval of the mapped or associated data resource pool. The multiple PRS periods are in units of at least one of milliseconds (msec) or logical time slots. The multiple PRS periods are converted from msec units to logical time slot units. This group of multiple data configurations is mapped or associated with P location configurations, where P is an integer greater than 1. The P location configurations are bound and one of the P PRS configurations is disabled or invalidated, and the other P-1 PRS configurations are disabled or invalidated. When the multiple data configurations are not mapped or associated, the multiple data configurations are disabled or invalidated.

[0016] In some embodiments, when multiple location configurations are not mapped or associated, the multiple location configurations are disabled or invalidated. Mapping or association is configured by the communication device. The communication device includes a user equipment (UE), network node, base station, local server, transmit / receive point (TRP), or location management function (LMF). When multiple data or location configurations are not mapped or associated, the communication device cannot use the multiple data or location configurations for communication. When multiple data or location configurations are not mapped or associated, the communication device cannot sense or select. For the deactivation / activation parameter, "1" indicates activation and "0" indicates deactivation, or "0" indicates activation and "1" indicates deactivation. Sidelink channels include the Physical Side Link Shared Channel (PSSCH), Physical Side Link Shared Channel (PSSCH), Physical Side Link Feedback Channel (PSFCH), or Physical Side Link Broadcast Channel (PSBCH). For mapping or association, the association period is based on the PRS period. The associated time period is associated with the PRS time period in the group (or multiple) location configurations and the data time period in the group (or multiple) data configurations.

[0017] In one embodiment, a wireless communication device includes a processor and a memory, and the processor is configured to read code from the memory and implement any of the embodiments discussed above.

[0018] In one embodiment, a computer program product includes computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement any of the embodiments discussed above.

[0019] In some embodiments, there is a wireless communication device including a processor and a memory, wherein the processor is configured to read code from the memory and implement any of the methods described in any embodiment. In some embodiments, a computer program product includes computer-readable program medium code stored thereon, which, when executed by the processor, causes the processor to implement any of the methods described in any embodiment. The above and other aspects and their implementations are described in more detail in the drawings, specification, and claims. Attached Figure Description

[0020] Figure 1 An example base station is shown.

[0021] Figure 2 An example random access (RA) messaging environment is shown.

[0022] Figure 3a An example side-link communication is shown.

[0023] Figure 3b Another example of side link communication is shown.

[0024] Figure 3c Another example of side link communication is shown.

[0025] Figure 4a An example sidelink communication with sidelink information is shown.

[0026] Figure 4b Another example of lateral link communication with lateral link information is shown.

[0027] Figure 4c Another example of lateral link communication with lateral link information is shown.

[0028] Figure 5a An example of a device-to-device messaging environment is shown.

[0029] Figure 5b Another example of side link communication is shown.

[0030] Figure 6 An example of round-trip time (RTT) communication with a side link is shown.

[0031] Figure 7 An example of a positioning reference signal in side link communication is shown.

[0032] Figure 8a An example of a non-zero power positioning reference signal (PRS) configuration in sidelink communication is shown.

[0033] Figure 8b An example of overlapping non-zero power positioning reference signal (PRS) configurations in sidelink communication is shown.

[0034] Figure 8c An example of prioritizing a non-zero power positioning reference signal (PRS) configuration in sidelink communication is shown.

[0035] Figure 8d An example of triggering a non-zero power positioning reference signal (PRS) configuration in sidelink communication is shown.

[0036] Figure 9a An example of a zero-power positioning reference signal (PRS) configuration in sidelink communication is shown.

[0037] Figure 9b An example of overlapping zero-power positioning reference signal (PRS) configurations in sidelink communication is shown.

[0038] Figure 9c An example of the priority of zero-power positioning reference signal (PRS) configuration in sidelink communication is shown.

[0039] Figure 9dAn example of triggering a zero-power positioning reference signal (PRS) configuration in sidelink communication is shown.

[0040] Figure 10a An example of overlapping Position Reference Signals (PRS) in sidelink communication is shown.

[0041] Figure 10b This illustrates another example of overlapping Position Reference Signals (PRS) in sidelink communication.

[0042] Figure 10c This illustrates another example of overlapping Position Reference Signals (PRS) in sidelink communication.

[0043] Figure 10d This illustrates another example of overlapping Position Reference Signals (PRS) in sidelink communication.

[0044] Figure 10e This illustrates another example of overlapping Position Reference Signals (PRS) in sidelink communication.

[0045] Figure 10f This illustrates another example of overlapping Position Reference Signals (PRS) in sidelink communication.

[0046] Figure 11 An example of a mapping configuration for communicating with it in a side link is shown.

[0047] Figure 12a An example of resource configuration for mapping communication in side link communication is shown.

[0048] Figure 12b Another example of resource configuration for mapping it for communication in side link communication is shown.

[0049] Figure 12c Another example of resource configuration for mapping it for communication in side link communication is shown.

[0050] Figure 12d Another example of resource configuration for mapping it for communication in side link communication is shown.

[0051] Figure 12e Another example of resource configuration for mapping it for communication in side link communication is shown.

[0052] Figure 12f Another example of resource configuration for mapping it for communication in side link communication is shown.

[0053] Figure 12gAnother example of resource configuration for mapping it for communication in side link communication is shown.

[0054] Figure 12h Another example of resource configuration for mapping it for communication in side link communication is shown.

[0055] Figure 13a An example of a data pattern in sidelink communication is shown.

[0056] Figure 13b This illustrates another example of a data pattern in sidelink communication.

[0057] Figure 13c This illustrates another example of a data pattern in sidelink communication.

[0058] Figure 13d This illustrates another example of a data pattern in sidelink communication. Detailed Implementation

[0059] This disclosure will now be described in detail below with reference to the accompanying drawings, which form part of this disclosure and illustrate specific examples of embodiments by way of illustration. However, it should be noted that this disclosure may be embodied in various different forms, and therefore, the subject matter covered or claimed is intended to be construed as not being limited to any of the embodiments set forth below.

[0060] Throughout the specification and claims, terms may have subtle meanings implied or suggested in the context beyond their explicitly stated meanings. Similarly, the phrases “in one embodiment” or “in some embodiments” as used herein do not necessarily refer to the same embodiment, and the phrases “in another embodiment” or “in other embodiments” as used herein do not necessarily refer to different embodiments. The phrases “in one implementation” or “in some implementations” as used herein do not necessarily refer to the same implementation, and the terms “in another implementation” or “in other implementations” as used herein do not necessarily refer to different implementations. For example, the claimed subject matter includes combinations of exemplary embodiments or implementations (all or part).

[0061] Generally, terms can be understood at least in part from their usage in the context. For example, terms used herein (such as “and,” “or,” and “and / or”) can include a variety of meanings, which may depend at least in part on the context in which such terms are used. Typically, “or” when used in a list of associations, such as A, B, or C, means A, B, and C, here used in an inclusive sense, and A, B, or C, here used in an exclusive sense. Furthermore, the terms “one or more” or “at least one” as used herein (at least in part depending on the context) can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, and characteristics in a plural sense. Similarly, terms such as “a,” “an,” or “the” can also be understood to convey singular or plural usage, at least in part depending on the context. Moreover, the terms “based on” or “determined by” can be understood not necessarily to convey a set of exclusive factors; instead, they may allow for the presence of other factors that are not necessarily explicitly described, again, at least in part depending on the context.

[0062] The wireless communications described herein can be via radio access including New Radio (“NR”) access. Radio Resource Control (“RRC”) is a protocol layer at the IP level (network layer) between the User Equipment (“UE”) and the network (e.g., a base station or gNB). Various Radio Resource Control (RRC) states can exist, such as RRC Connected (RRC_CONNECTED), RRC Inactive (RRC_INACTIVE), and RRC Idle (RRC_IDLE). RRC messages are transmitted via Packet Data Convergence Protocol (“PDCP”). The UE can transmit data via the Random Access Channel (“RACH”) protocol scheme or the Configuration Grant (“CG”) scheme or grant scheme. The RACH scheme is merely one example of a protocol scheme used for communication, and other examples, including but not limited to CG, are possible. Figures 1-2 An example radio access network (“RAN”) node (e.g., a base station) and user equipment and messaging environment are illustrated. The communications described herein may be specific to sidelink communications, which may also be referred to as device-to-device (“D2D”) communications.

[0063] At least two technical solutions can exist, including an Internet Protocol (“IP”) layer (Layer 3 or “L3”) and an access layer (Layer 2 or “L2”) for sidelink communication. Layer 3-based relays forward data based on the UE’s IP information (e.g., IP address or IP port number). Layer 2-based relays route and forward user plane and control plane data in the access layer to allow network operators (i.e., the core network and / or the BS) to manage remote UEs more effectively.

[0064] Sidelink communication can alleviate the burden on cellular networks, reduce power consumption of user equipment (“UE”), increase data rates, and improve the robustness of network infrastructure, all of which can meet the demands of high data rate services and proximity services. Relay communication or D2D technology can also be referred to as ProSe or sidelink communication. The interface between devices can be called a PC5 interface. PC5 is a scenario where a UE communicates directly with another UE via a direct channel without a base station. In some embodiments, sidelink-based relay communication can be applied to indoor relay communication, smart agriculture, smart factories, and public safety services. Sidelink can depend solely on the location of each device. For example, both user equipment (UE) devices must be within range of each other to participate in sidelink communication. Positioning can also be referred to as ranging and can include relative and absolute positioning. Based on positioning, bandwidth requirements can vary to meet accuracy requirements.

[0065] Multi-cell round-trip time (RTT) can include the Rx-Tx time difference measurement of the signal for each cell used for base station / UE communication. Measurement reports from the UE and base station can exist, and these reports are sent to a location server to determine the round-trip time (RTT) for each cell, which can be used to calculate the UE's location.

[0066] Location Management Function (LMF) can be used to improve positioning. LMF receives measurement / assistance information from the base station and the UE. This can be transmitted via Access and Mobility Management Function (AMF) to calculate the UE's location. LMF can configure the UE via AMF, while the base station can configure the UE using the Radio Resource Control (RRC) protocol.

[0067] Figures 3a-6 An exemplary embodiment for side link communication is shown. Figures 1-2 Example base stations and user equipment, as well as messaging environments, that can be applied to the sidelink communication described below are shown.

[0068] Figure 1 Example base station 102 is shown. A base station may also be referred to as a wireless network node. Base station 102 may be further identified as a nodeB (NB, such as eNB or gNB) in a mobile telecommunications context. The example base station may include a radio Tx / Rx circuitry system 113 for receiving and transmitting with user equipment (UE) 104. The base station may also include a network interface circuitry system 116 for coupling the base station to the core network 110, such as optical or wired interconnect, Ethernet, and / or other data transmission media / protocols.

[0069] The base station may also include system circuitry 122. System circuitry 122 may include processor(s) 124 and / or memory 126. Memory 126 may include operations 128 and control parameters 130. Operations 128 may include instructions for execution on one or more processors in processor 124 to support the functions of the base station. For example, these operations may process random access transmission requests from multiple UEs. Control parameters 130 may include parameters of operations 128 or support for the execution of operations 128. For example, control parameters may include network protocol settings, random access message format rules, bandwidth parameters, radio frequency mapping allocation, and / or other parameters.

[0070] Figure 2 An example random access messaging environment 200 is illustrated. In this environment, UE 104 can communicate with base station 102 via random access channel 252. In this example, UE 104 supports one or more Subscriber Identity Modules (SIMs), such as SIM 1202. Electrical and physical interfaces 206 connect SIM 1202 to the rest of the user equipment hardware, for example, via system bus 210.

[0071] Mobile device 200 includes a communication interface 212, system logic 214, and user interface 218. System logic 214 may include any combination of hardware, software, firmware, or other logic. System logic 214 may be implemented using, for example, one or more system-on-chip (SoC), application-specific integrated circuit (ASIC), discrete analog and digital circuits, and other circuit systems. System logic 214 is part of the implementation of any desired function in UE 104. In this regard, system logic 214 may include logic that facilitates, for example, decoding and playing music and video, such as MP3, MP4, MPEG, AVI, FLAC, AC3, or WAV decoding and playback; running applications; accepting user input; saving and retrieving application data; establishing, maintaining, and terminating cellular phone calls or data connections, such as internet connections; establishing, maintaining, and terminating wireless network connections, Bluetooth connections, or other connections; and displaying relevant information on user interface 218. User interface 218 and input 228 may include a graphical user interface, a touch-sensitive display, haptic feedback or other haptic output, voice or facial recognition input, buttons, switches, speakers, and other user interface elements. Additional examples of input 228 may include microphones, video and still image cameras, temperature sensors, vibration sensors, rotation and orientation sensors, headset and microphone input / output jacks, universal serial bus (USB) connectors, memory card slots, radiation sensors (e.g., IR sensors), and other types of inputs.

[0072] System logic 214 may include one or more processors 216 and memory 220. Memory 220 stores, for example, control instructions 222 executed by processor 216 to perform desired functions of UE 104. Control parameters 224 provide and specify configuration and operational options for the control instructions 222. Memory 220 may also store any BT, WiFi, 3G, 4G, 5G, or other data 226 that UE 104 will send or has received via communication interface 212. In various implementations, system power may be supplied by a power storage device such as battery 282.

[0073] In communication interface 212, radio frequency (RF) transmit (Tx) and receive (Rx) circuitry 230 processes the transmission and reception of signals via one or more antennas 232. Communication interface 212 may include one or more transceivers. The transceiver may be a wireless transceiver, which includes modulation / demodulation circuitry, a digital-to-analog converter (DAC), a shaper, an analog-to-digital converter (ADC), filters, waveform shapers, preamplifiers, power amplifiers, and / or other logic for transmission and reception via one or more antennas or (for some devices) via a physical (e.g., wired) medium.

[0074] Transmitted and received signals can follow any of a variety of formats, protocols, modulations (e.g., QPSK, 16-QAM, 64-QAM, or 256-QAM), frequency channels, bit rates, and encodings. As a specific example, communication interface 212 may include a transceiver supporting transmission and reception under 2G, 3G, BT, WiFi, Universal Mobile Telecommunications System (UMTS), High-Speed ​​Packet Access (HSPA)+, and 4G / LTE standards. However, the techniques described below are applicable to other wireless communication technologies, whether they originate from the 3rd Generation Partnership Project (3GPP), the GSM Association, 3GPP2, IEEE, or other partners or standards bodies.

[0075] Sidelink communication between UEs

[0076] Figure 3a An example sidelink communication is shown. Sidelink communication can also be referred to as sidelink messaging, sidelink relay, relay communication, or device-to-device (“D2D”) communication / messaging. Figure 3a This illustrates bidirectional sidelink communication between two UEs. UE1 sends to UE2, and UE2 sends to UE1. This example shows that a UE can report / send / request information to another UE (i.e., UE2), or that information can be requested / responded to by another UE (i.e., UE2).

[0077] Figure 3b Another example of side link communication is shown. Figure 3b This illustrates unidirectional side-link communication between two UEs. In this example, UE1 sends / reports information to UE2. UE2 receives the sent information from UE1. In this example, the information can also be requested by UE2.

[0078] Figure 3c Another example of side link communication is shown. Figure 3c The example shows a UE (UE1) broadcasting to multiple UEs. In this example, UE1 broadcasts / sends information to n UEs (where n is an integer).

[0079] Figure 4a An example sidelink communication with sidelink information is shown. Figure 4a As shown Figure 3a Sidelink communication between UE1 and UE2 in this example. However, in this example, transmissions via the sidelink include specific information, referred to as sidelink information, which is further described below. Sidelink communication may also include sending, receiving, broadcasting, unicasting, requesting, responding, forwarding, switching, or multicasting.

[0080] Figure 4b Another example of lateral link communication with lateral link information is shown. Figure 4b As shown Figure 3b The example illustrates sidelink communication between UE1 and UE2, where UE1 sends / reports information to UE2, and UE2 receives the sent information from UE1. In this example, UE1 sends / reports information to UE2. However, in this example, the transmission via the sidelink includes specific information, referred to as sidelink information, which is further described below.

[0081] Figure 4c Another example of lateral link communication with lateral link information is shown. Figure 4c As shown Figure 3c The example describes sidelink communication broadcast from UE1 to n UEs. However, in this example, transmissions via the sidelink include specific information, referred to as sidelink information, which is further described below. UE reporting / transmitting information or capabilities may include broadcast, multicast (when the HARQ-ACK information includes ACK or NACK), unicast, or multicast (when the HARQ-ACK information only includes ACK or NACK).

[0082] Side link information

[0083] exist Figures 4a-4cThe sidelink information transmitted can include UE-specific information. UE information can include UE identifier (UEID), location information, position information, measurement results, UE capabilities, information about the UE within its coverage area, response time, response period, or measured reference signal received power (RSRP).

[0084] exist Figures 4a-4c The sidelink information transmitted may include UE capability information. UE capabilities may be at least one of the following: the ability to communicate with the network, the ability to calculate its location information or position, the ability to exchange signaling or interact with another UE, the ability to forward information from other UEs, the ability to broadcast its own information or information received from other UEs, the ability to be within the network's coverage area, the ability to support reference signals or aperiodic / semi-persistent reference signals, area ID, or location reference signal (PRS) configuration. In other examples, UE capabilities or information may include synchronization information, or the ability to support at least one of the following positioning methods: network-assisted GNSS methods, observed time difference of arrival (OTDOA) positioning, WLAN positioning, Bluetooth positioning, terrestrial beacon system (TBS) positioning, enhanced cell ID (ECID), multiple round-trip time (multiple RTT), angle of departure (AoD), time difference of arrival (TDOA), angle of arrival (AoA), or the ability to broadcast physical information or(multiple) RRC parameters.

[0085] Sidelink information or location information may include a sidelink location reference signal (SL-PRS) configuration. The SL-PRS configuration may be indicated in control signaling, control channels, (multiple) other channels, or radio resource control (RRC) parameters. Control signaling may include sidelink control information (SCI), downlink control information (DCI), media access control element (MAC CE), non-access stratum (NAS), or system information block x (SIBx), where x is an integer. Control channels include at least one of the physical sidelink control channel (PSCCH), physical downlink control channel (PDCCH), or physical uplink control channel (PUCCH). (Multiple) other channels include at least one of the physical sidelink shared channel (PSSCH), physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH), physical broadcast channel (PBCH), physical sidelink feedback channel (PSFCH), or physical sidelink broadcast channel (PSBCH).

[0086] Capabilities also include the ability to send sidelink information to a specific communication device, the ability to receive sidelink information from a specific communication device, the ability to exchange signaling or interact with a specific communication device, the ability to forward sidelink information about a specific communication device, the ability to receive sidelink information from a specific communication device, or network coverage capabilities. In other examples, UE capabilities include the ability to support positioning functions, the ability to communicate a Positioning Reference Signal (PRS), the ability to support positioning method measurements, the ability to support aperiodic or semi-persistent PRS, the ability to communicate control information, the ability to support multiple RTT methods, or the ability to support multiple RTT measurement capabilities.

[0087] In other embodiments, the sidelink information includes at least one of the following: User Equipment ID (UEID), positioning information, location information, measurement results, UE capabilities, UE information within its coverage area, area ID, response time, response period, sidelink positioning reference signal (SL-PRS) configuration, synchronization information, Rx-Tx time difference, number of Rx-Tx time differences, reference signal timing difference (RSTD), relative time of arrival (RTOA), timestamp, PRS resource ID, PRS resource set ID, beam information, angle information, positioning method information, control information information, positioning reference signal configuration, angle indication granularity, measurement gap configuration, resource capabilities for each positioning method, PRS processing capabilities, multi-round-trip time (multi-RTT) measurement capabilities, UEPRS quasi-co-location (QCL) processing capabilities, TDOA provisioning capabilities, AoD provisioning capabilities, multi-RTT provisioning capabilities, additional path reporting capabilities, periodic reporting capabilities, and UE corresponding to the PRS resource / resource set for each measurement. The maximum number of Rx-Tx time difference measurements, whether the communication device supports RSRP measurements for multiple RTTs in FRx, the granularity of Rx-Tx time difference measurements for the communication device, RSRP or RSRP difference from (multiple) other auxiliary communication devices to the reference communication device, UE measurement capability, multiple RTT measurements, list of communication devices, or angle indication method, where FRx refers to FR1, FR2, FR2-1, or FR2-2.

[0088] lateral link communication with the network

[0089] Sidelink communication between UEs can also include networks, such as base stations (also known as NG-RAN). Networks can also include the core network, Transmit / Receive Point (TRP), or Location Management Function (LMF). Besides the network receiving information, UEs can also communicate via the information mentioned above. Figures 3a-4c The mechanism described is used for communication.

[0090] Figure 5aAn example with a sidelink messaging environment is shown. Specifically, Figure 5a A base station (“BS”) with a communication range 504 is shown. A second user equipment (“UE2”) is within the communication range 504 of the BS, while a first user equipment (“UE1”) is outside the communication range 504. UE1 and UE2 establish a relay communication 502, where UE2 is the relay UE and UE1 is the remote UE. For the relay communication, the remote UE (UE1) communicates with the network through the relay UE (UE2). The relay UE (UE2) relays communication between the base station (BS) and the remote UE (UE1). In some embodiments, the relay communication may be designed to cover UE1 in areas with weak or no coverage. UE1 is allowed to communicate with the base station BS through the relay UE (UE2). As a result, the coverage of network 504 is extended to include the relay communication coverage area 502 (including UE1), and the network capacity is increased.

[0091] In some embodiments, such as during emergencies (e.g., earthquakes), cellular networks may malfunction, or the lateral link communication range of the network may need to be extended. Therefore, relay communication can be designed to allow multiple UEs to communicate with each other via a relay UE. Although not shown, multiple UEs can exist in a relay communication chain, or a relay UE can have multiple remote UEs. Figure 5a During relay communication, the interface between the UE and the BS is called the Uu interface.

[0092] Figure 5b Another example of sidelink communication is shown. (With) Figure 4b In contrast, UE2 can further communicate with the network (e.g., via a base station). In some embodiments, sidelink communication can occur between the user equipment (UE), network node, base station, local server, transmit / receive point (TRP), or location management function (LMF). Although in Figure 5b It is not shown in the diagram, but UE2 can receive information from another UE (UE1), which is then transmitted to the network / base station.

[0093] Figure 6An example of round-trip time (RTT) communication with a sidelink is shown. This example illustrates a UE (UE1) communicating with multiple network nodes (i.e., base stations 1-n) and multiple other UEs (i.e., UE 2-n). This communication can be sidelink communication and can include the aforementioned sidelink information. Communication with multiple nodes / UEs can be used to measure and calculate location. Sidelink information or location information can include multi-RTT (multi-RTT) location, location signals associated with multi-RTT location, a list of communication devices, Rx-Tx time differences of communication devices, Rx-Tx time difference values, Rx-Tx time difference measurements, or parameters or a list of parameters used by one communication device to provide multi-RTT measurements to another communication device. Parameters can be used to provide auxiliary data enabling the communication device to assist in multi-RTT or to provide location measurements for multi-RTT. Location measurements are used to determine potential errors or are provided as a list of communication devices. The communication device indicates its ability to support multi-RTT and provide its multi-RTT location capabilities to another communication device.

[0094] The UE can configure PRS resources or resources set by another UE. The UE can configure a list / group of UEs for positioning, or the UE can be configured by a list / group of UEs. The UE can broadcast / send / report UE-Rx-Tx time difference measurements from another UE. The UE can receive UE-Rx-Tx time difference measurements from another UE. The UE can receive an additional path list from another UE, which, relative to the path timing used to determine the UE-Rx-Tx time difference measurement, relates to one or more additional detected path timing values ​​for the other UE or resources. Signals / signal types for sending / transmitting / measuring to another UE can be sent to the UE. Signals can refer to PRS, SSB, CSI-RS, and signal types can refer to the type of PRS, SSB, or CSI-RS.

[0095] The UE sends information to another UE, requests information, or receives a response from another UE. This information may include sidelink information and / or may include resource pool index, resource ID, resource set ID, resource set ID, RS scrambled with the UE ID for positioning, frequency layer index, timestamp, ability to measure / report (multiple) measurement results from different frequency bands / frequency centers (FR1, FR2-1, FR2-2), best estimate of measurement quality; and the UE indicating its capabilities (multi-RTT RS capability, multi-RTT measurement capability, RS QCL processing capability, RS capability, additional path reporting, periodic reporting), departure angle or arrival angle, maximum supported bandwidth, power saving requirements, or positioning accuracy requirements. This information can be indicated via SCI.

[0096] The communication device can configure PRS resources or resources set by another communication device. The communication device can configure a list / group of communication devices for positioning, or the communication device can be configured by a list or group of communication devices. The communication device can broadcast / send / report Rx-Tx time difference measurements from another communication device. The communication device can receive Rx-Tx time difference measurements from another communication device. The communication device can receive an additional path list from another communication device, which, relative to the path timing used to determine the Rx-Tx time difference measurement, relates to one or more additional detected path timing values ​​of the other communication device or resource. Signals / signal types for sending / transmitting / measuring to another communication device can be sent to the communication device. Signals can refer to PRS, SSB, CSI-RS, and signal types can refer to the type of PRS, SSB, or CSI-RS.

[0097] Another communication device can request a communication device to report multiple RS resource IDs or RS resource set IDs associated with the multiple RS resources or RS resource sets used in determining the Rx-Tx time difference measurement of the communication device. The communication device can request a recommended reporting granularity for the Rx-Tx time difference measurement from another communication device. The communication device can report the resource ID, resource set ID, or node ID of multiple other auxiliary nodes of the communication device. The communication device can report the measurement result (Rx-Tx time difference measurement) and RSRP or the RSRP difference from multiple other auxiliary nodes of the communication device to the reference node. A maximum number of communication devices can be configured, with different resources or resource sets for each communication device to perform Rx-Tx time difference measurements.

[0098] In some embodiments, a node uses parameters to provide auxiliary data to enable communication device-assisted multi-RTT. A communication device can use parameters to request auxiliary data from another communication device. A communication device can use parameters to provide NR multi-RTT location measurements to another communication device, or the parameters can be used to provide a specific cause of multi-RTT positioning error. A communication device can use parameters to provide multi-RTT measurements to another communication device. The measurements are provided as a list of communication devices, where the first communication device in the list is used as a reference communication device. A node can use parameters to request multi-RTT location measurements from a communication device. A communication device can use parameters to indicate its ability to support multi-RTT and provide its multi-RTT positioning capabilities to another communication device. A communication device can include its measurement capabilities as part of its communication device capabilities in the sidelink information. A first communication device can use parameters to request a second communication device to support multi-RTT capabilities and request multi-RTT positioning capabilities from the communication device.

[0099] Lateral Link Positioning Reference Signal (PRS) and Priority

[0100] PRS can be part of the aforementioned sidelink information and can be referred to as Sidelink PRS (SL-PRS). As described above, the sidelink information (or location information, PRS configuration, or SL-PRS) configuration can include SL-PRS period, SL-PRS time resources, SL-PRS frequency resources, time gap between SL-PRS and sidelink channels, minimum time gap between SL-PRS and sidelink channels, SL-PRS hop ID, comb size, hop ID, first symbol of SL-PRS within a time slot, size of SL-PRS resources in the time domain, resource element offset, reference point, location of point A, combination of size of SL-PRS resources and comb size in the time domain, SL-PRS sequence ID, UE ID, SL-PRS sequence set information, SL-PRS frequency layer information, PSFCH configuration, CandidateResourceType, or physical broadcast set. The unit of SL-PRS period or SL-PRS time resources includes at least one of milliseconds, symbols, symbol sets, time slots, or time slot sets. The SL-PRS period is configured within at least one of the bandwidth portion (BWP), carrier frequency, configuration, or resource pool. An SL-PRS period set to 0 indicates that no resources are available for SL-PRS. The SL-PRS period is a logical period. The SL-PRS period is associated with the PSFCH configuration. Both the SL-PRS configuration and the PSFCH configuration are configured within the resource pool.

[0101] The sidelink channel includes at least one of the following: Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Shared Channel (PSSCH), Physical Sidelink Feedback Channel (PSFCH), or Physical Sidelink Broadcast Channel (PSBCH). The unit of frequency resources for SL-PRS includes at least one of the following: Physical Resource Block (PRB), Subchannel, or Resource Element (RE). The size of SL-PRS resources in the time domain includes at least one of the following: the number of symbols(multiple) per SL-PRS resource, the number of symbols(multiple) per SL-PRS resource, the number of symbols(multiple) configured per SL-PRS, or the number of symbols(multiple) configured per SL-PRS. SL-PRS resources or SL-PRS configurations include at least one of the following: the number of symbols(multiple) per SL-PRS resource within a time slot, the number of symbols(multiple) configured per SL-PRS within a time slot, the number of symbols(multiple) per SL-PRS resource within a time slot, or the number of symbols(multiple) configured per SL-PRS within a time slot. The location of the reference point or point A includes at least one of the positioning frequency layer, BWP, or carrier frequency. The location of the reference point or point A is a parameter provided by a higher layer or SCI. The location of the reference point or point A is associated with at least one of the following: the lowest resource block (RB) index of the sidelink bandwidth portion (SL BWP), the lowest RB index of the subchannel with the lowest index in the resource pool, the lowest RB index of the SL carrier frequency, the lowest subchannel index in the resource pool, the lowest subchannel index of the SL BWP, or the lowest subchannel index of the SL carrier frequency. The SL-PRS hop ID refers to the scrambling ID of the sequence hop used for configuring the sidelink positioning reference signal (SL-PRS). The SL-PRS hop ID is used for the resource pool, BWP, or carrier frequency. The combination of the size of the SL-PRS resource and the comb size in the time domain is at least one of {2,2}, {4,2}, {6,2}, {12,2}, {4,4}, {12,4}, {6,6}, {12,6}, or {12,12}. The value of the SL-PRS sequence ID is associated with the value of the User Equipment Identifier (UEID). The SL-PRS sequence ID is used to initialize values ​​in a pseudo-randomization generator, which generates SL-PRS sequences for transmission on SL-PRS resources. Sidelink information, location information, or Sidelink Location Reference Signal (SL-PRS) configuration is configured by at least one of higher-layer parameters, Sidelink Control Information (SCI), or NAS parameters. Communication equipment includes User Equipment (UE), network nodes, base stations, local servers, Transmit / Receive Points (TRPs), or Location Management Functions (LMFs). Multiple SL-PRS periods are associated with time resources used in the sidelink resource pool, BWP, or carrier frequency.

[0102] Figure 7 An example of a Positioning Reference Signal (PRS) in lateral link communication is shown. Specifically, the priority of the PRS is taken into account for lateral link communication. In block 702, the priority of the lateral link Positioning Reference Signal (SL-PRS) is determined. Based on the determined priority, communication of the SL-PRS is performed in block 704. The communication in block 704 includes lateral link communication, and different embodiments of considering priorities to affect lateral link communication are discussed below.

[0103] In box 702, prioritizing the Sidelink Positioning Reference Signal (SL-PRS) can be based on at least one of configuration, default, scenario, or indication. This determination establishes the SL-PRS as having the highest priority, for which the communication prioritizes the SL-PRS before communicating with (multiple) other signals or channels. This determination establishes the SL-PRS as having the lowest priority, for which the communication prioritizes any (multiple) other signals or channels before the SL-PRS. The priority of the SL-PRS can be determined based on control signaling, which includes at least one of the following: Radio Resource Control (RRC), Media Access Control Element (MACCE), Downlink Control Information (DCI), Non-Access Stratum (NAS), Sidelink Control Information (SCI), or System Information Block x (SIBx), where x is an integer.

[0104] The communication in block 704 is from a first communication device to a second communication device. The first or second communication device includes one of a user equipment (UE), a network node, a base station, a local server, a transmit / receive point (TRP), or a location management function (LMF). The communication also includes at least one of sending, receiving, broadcasting, unicasting, multicasting, forwarding, requesting, responding, or exchanging.

[0105] When the PRS partially or completely overlaps with another signal (e.g., data, control, feedback, or other signals), priority determination can be used to determine which signal should be transmitted. In one embodiment, the PRS has a higher priority than other signals by default. Priorities can be assigned numerical values ​​(e.g., 1 is the highest, 8 is the lowest), in which case, in this embodiment, the PRS priority could be 1. Priorities can be specific to sidelink communication. PRS resources / configurations can be sensed and selected, or PRS resources / configurations and sidelink data resources / configurations can be sensed and selected separately. In other embodiments, only sidelink data resources / configurations can be sensed and selected. The PRS can use T used in the selection window. 2min The values ​​and X%, X% are the percentage of the highest data priority transmission (Tx) slot / resource / time.

[0106] In an alternative embodiment, the PRS can have the lowest priority compared to other signals by default. In this example, the PRS priority can have a sidelink priority equal to 8 (which is the lowest data priority). The priority can be specific to sidelink communication. PRS resources / configurations can be sensed and selected, or PRS resources / configurations and sidelink data resources / configurations can be sensed and selected separately. In other embodiments, only sidelink data resources / configurations can be sensed and selected. The PRS can use the T signal used in the selection window. 2min The values ​​and X%, X% are the percentage of the transmission (Tx) slot / resource / time based on the lowest data priority.

[0107] In an alternative embodiment, PRS priority can be configured. This configuration can be based on data priority. In one example, the PRS priority can be configured via control signaling, such as RRC, MAC CE, DCI, or SCI. In this example, the PRS priority value can be configured using any of the following: 1, 2, 3, 4, 5, 6, 7, 8. The indication of the PRS priority can be configured using one of the following: 1, 0. The priority can be decimal, where A is the decimal priority, B is the integer part, and C is the fractional part, where A, B, and C are integers. The priority can be decimal, with the fractional part represented by 0 or 1. In some embodiments, there can be only one or more positions after the decimal point. Alternatively, 1 indicates that the PRS priority is higher / lower than the data priority, while 0 indicates that the PRS priority is lower / higher than the data priority. Data priority can be indicated in the SCI. PRS resources / configuration can be sensed and selected, or PRS resources / configuration and sidelink data resources / configuration can be sensed and selected separately. In other embodiments, only sidelink data resources / configuration can be sensed and selected. If the PRS priority (its priority value is Z) is higher than the data priority (its priority value is Y, where Y is one of the following: 1, 2, 3, 4, 5, 6, 7, 8), then the PRS priority value can be 1 <= Z <= Y, or it defaults to 1. Alternatively, if the PRS priority (its priority value is Z) is lower than the data priority (its priority value is Y, where Y is one of the following: 1, 2, 3, 4, 5, 6, 7, 8), then the PRS priority can be 1 >= Z >= Y, or it defaults to 8. Higher priority corresponds to lower priority values. In one embodiment, a priority value of 8 is the lowest priority, and a priority value of 1 is the highest priority.

[0108] The priority of the SL-PRS is configured through at least one of the following: higher-layer parameters, parameters in Radio Resource Control (RRC), parameters in Side Link Control Information (SCI), parameters in Downlink Control Information (DCI), parameters in Media Access Control Element (MAC CE), Non-Access Stratum (NAS) layer parameters, or parameters in System Information Block x (SIBx), where x is an integer. The SL-PRS is used to calculate the location. The determined priority of the SL-PRS includes at least one of the following: the SL-PRS has a higher priority than the first group(s) of other signals or channels, or the SL-PRS has a lower priority than the second group(s) of other signals or channels. Communication cancellation prioritizes the SL-PRS and communication occurs after the second group(s) of other signals or channels. Communication priority prioritizes the SL-PRS and communication occurs before communication occurs with the first group(s) of other signals or channels. The first group of other signals and the second group(s) of other signals and channels have no overlap.

[0109] Priority can depend on other factors or scenarios. For example, there may be different scenarios where the location of the side link is considered urgent, non-urgent, high-latency, or low-latency. The PRS can have a higher priority than at least one of the following: Physical Side Link Control Channel (PSCCH), Physical Side Link Shared Channel (PSSCH), Physical Side Link Feedback Channel (PSFCH), Channel State Information Reference Signal (CSI-RS), or Physical Side Link Broadcast Channel (PSBCH). In another example, the PRS can have a lower priority than at least one of the following: Physical Side Link Control Channel (PSCCH), Physical Side Link Shared Channel (PSSCH), Physical Side Link Feedback Channel (PSFCH), Channel State Information Reference Signal (CSI-RS), or Physical Side Link Broadcast Channel (PSBCH). Finally, the PRS can be higher than or lower than a portion of the Physical Side Link Control Channel (PSCCH), Physical Side Link Shared Channel (PSSCH), Physical Side Link Feedback Channel (PSFCH), Channel State Information Reference Signal (CSI-RS), or Physical Side Link Broadcast Channel (PSBCH). In some cases, the network can be configured with options to include any of these examples for positioning or for PRS resources / configuration or PRS measurements. At least one of these positioning examples is supported based on UE capabilities and depends on PRS resources / configuration or PRS measurements.

[0110] Non-zero power PRS / Zero power PRS

[0111] Sidelink communication can include a non-zero power positioning reference signal (PRS) or a zero power PRS. The non-zero power positioning reference signal (PRS) configuration or the zero power PRS configuration can be configured via sidelink communication.

[0112] Figure 8a An example of a non-zero power positioning reference signal (PRS) configuration in sidelink communication is shown. In block 802, a non-zero power PRS can be configured. In block 804, sidelink communication may include a non-zero power positioning reference signal (PRS). In some embodiments, blocks 802 and 804 may be performed independently of each other or in a different order. The non-zero power PRS may be periodic, semi-persistent, or aperiodic. As discussed herein, the non-zero power PRS may use priority or rate matching of the SL-PRS. The time or frequency resources of the non-zero power positioning reference signal (PRS) can be configured as follows... Figure 8d Further description of the control signaling for configuration.

[0113] Figure 8b An example of overlapping non-zero power positioning reference signal (PRS) configurations in sidelink communication is shown. In block 806, the non-zero power PRS can be configured as in block 802. In block 808, it can be determined whether the non-zero power PRS overlaps with any other signal(s) or channel(s). Based on this determination, in block 810, the communication (i.e., sidelink communication) can be modified. In one embodiment, when overlap or partial overlap exists, the modification includes not transmitting the non-zero power PRS. In another embodiment, when it is determined that the non-zero power PRS at least partially overlaps, the modification includes partial transmission. Overlap regarding... Figures 10a-10f Further description.

[0114] Figure 8c An example of prioritizing a non-zero power positioning reference signal (PRS) configuration in sidelink communication is shown. In block 812, the non-zero power PRS can be configured as in blocks 802, 806. In block 814, the priority of the non-zero power PRS compared to (a plurality of) other signals or channels can be determined. Based on the priority determination, in block 816, the communication (i.e., sidelink communication) can be modified. In one embodiment, when the non-zero power PRS has a lower priority than (a plurality of) other signals or channels, the modification includes not transmitting the non-zero power PRS. In another embodiment, when the priority of the non-zero power PRS is determined to be higher than one or more signals or channels and lower than one or more signals or channels, the modification includes partial transmission.

[0115] Figure 8dAn example of triggering a non-zero power positioning reference signal (PRS) configuration in sidelink communication is illustrated. In block 818, communication is performed for (multiple) non-zero power PRS configurations. In block 820, control signaling can be used to trigger at least a portion of (multiple) non-zero power PRS configurations. In one example, the time or frequency resources of the non-zero power positioning reference signal (PRS) can be configured and / or triggered by control signaling.

[0116] Figure 9a An example of a zero-power positioning reference signal (PRS) configuration in sidelink communication is illustrated. In block 902, a zero-power PRS can be configured. In block 904, sidelink communication may include a zero-power positioning reference signal (PRS). In some embodiments, blocks 902 and 904 may be performed independently of each other or in a different order. The zero-power PRS may be periodic, semi-persistent, or aperiodic. As discussed herein, the zero-power PRS may use priority or rate matching of the SL-PRS. The time or frequency resources of the zero-power positioning reference signal (PRS) can be configured as follows... Figure 9d Further description of the control signaling for configuration.

[0117] Figure 9b An example of overlapping zero-power positioning reference signal (PRS) configurations in sidelink communication is shown. In block 906, the zero-power PRS can be configured as in block 902. In block 908, it can be determined whether the zero-power PRS overlaps with any other signal(s) or channel(s). Based on this determination, in block 910, the communication (i.e., sidelink communication) can be modified. In one embodiment, when overlap or partial overlap exists, the modification includes not transmitting the zero-power PRS. In another embodiment, when it is determined that the zero-power PRS at least partially overlap, the modification includes partial transmission. Overlap regarding... Figures 10a-10f Further description.

[0118] Figure 9c An example of prioritizing a zero-power positioning reference signal (PRS) configuration in sidelink communication is shown. In block 912, the zero-power PRS can be configured as in blocks 902 and 906. In block 914, the priority of the zero-power PRS compared to (a plurality of) other signals or channels can be determined. Based on the priority determination, in block 916, the communication (i.e., sidelink communication) can be modified. In one embodiment, when the zero-power PRS has a lower priority than (a plurality of) other signals or channels, the modification includes: not transmitting the zero-power PRS. In another embodiment, when the priority of the zero-power PRS is determined to be higher than one or more signals or channels and lower than one or more signals or channels, the modification includes: performing partial transmission.

[0119] Figure 9dAn example of triggering a zero-power positioning reference signal (PRS) configuration in sidelink communication is illustrated. In block 918, communication is performed for (multiple) zero-power PRS configurations. In block 920, control signaling can be used to trigger at least a portion of (multiple) zero-power PRS configurations. In one example, the time or frequency resources of the zero-power positioning reference signal (PRS) can be configured and / or triggered by control signaling.

[0120] In one embodiment, if the UE is not configured with at least one higher-layer parameter associated with the PRS or is not configured with a PRS in the sidelink, the UE assumes that a PRS does not exist. In some embodiments, both non-zero power PRS and zero power PRS may be supported simultaneously. In other embodiments, only one may be supported. Non-zero power PRS and / or zero power PRS can be configured through (multiple) higher parameters.

[0121] Rate matching may exist for periodic, semi-persistent, or aperiodic non-zero power PRS configurations. To perform rate matching, (multiple) signals or channels include at least one of the following: data signals, control signals, demodulation reference signals, feedback signals, demodulation reference signals, (multiple) phase tracking reference signals (PT-RS), channel state information reference signals (CSI-RS), primary synchronization signal (PSS), secondary synchronization signal (SSS), probe reference signal (SRS), sidelink primary synchronization signal (S-PSS), sidelink secondary synchronization signal (S-SSS), physical sidelink control channel (PSCCH), physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), physical sidelink shared channel (PSSCH), physical downlink shared channel (PDSCH), physical uplink shared channel (PUSCH), physical broadcast channel (PBCH), physical sidelink feedback channel (PSFCH), or physical sidelink broadcast channel (PSBCH). Time or frequency resources are used only for zero-power PRS communication. The control signaling is included in at least one of the following: sidelink control information (SCI), downlink control information (DCI), media access control element (MAC CE), non-access stratum (NAS), or system information block x (SIBx), where x is an integer.

[0122] Alternatively, for periodic, semi-persistent, or aperiodic zero-power positioning PRS configurations, rate matching with at least one of PSSCH, PSCCH, and PSFCH may exist. At least one of PSSCH, PSCCH, and PSFCH may not be transmitted in the time domain within the positioning / configuration PRS RE, (multiple) PRS slots / symbols, or PRS transmission / configuration units. Alternatively, in aperiodic non-zero-power positioning PRS configurations, the UE / base station may choose not to perform rate matching with at least one of PSSCH, PSCCH, or PSFCH. At least one of PSSCH, PSCCH, or PSFCH may be transmitted simultaneously in the time domain within the positioning / configuration PRS RE, (multiple) PRS slots / symbols, or PRS transmission / configuration units. Alternatively, non-zero-power PRS may configure at least one of the following: a power offset from the PSSCH RE to the non-zero-power (NZP) positioning RS RE, and a power offset from the NZP positioning RS RE to the SSS RE. Alternatively, the values ​​of the power offsets are in decibels (dB). Alternatively, the transmission timing of the PRS is configured by higher-layer parameters or uses the default configuration.

[0123] For overlap of the PRS with (multiple) other signals or channels, there may be a default mechanism for determining what to do during the overlap. The overlap may be complete or partial. The response to the overlap may be to completely stop transmission or to stop transmission of the overlapped portion. In other embodiments, PRS transmission may be sent by default despite the presence of overlap, or it may depend on whether the overlap is complete or partial. In one embodiment, if the PRS overlaps with at least one of DM-RS, PSFCH, PSSCH, PSSCH, CSI-RS, PT-RS, or SSB, the PRS is not transmitted in the overlapped portion. Alternatively, the PRS is not transmitted when it overlaps with at least one of DM-RS, PSFCH, PSSCH, PSSCH, CSI-RS, PT-RS, or SSB. The transmission unit may be (multiple) symbols or REs. Alternatively, if at least one of DM-RS, PSFCH, PSSCH, PSSCH, CSI-RS, PT-RS, or SSB overlaps with the PRS, it is not transmitted. Alternatively, when the PRS partially overlaps with DM-RS, PSFCH, PSSCH, CSI-RS, PT-RS, or SSB, the PRS is not transmitted in the overlapping portion. Alternatively, when the PRS partially overlaps with at least one of DM-RS, PSFCH, PSSCH, CSI-RS, PT-RS, or SSB, the PRS is not transmitted. Alternatively, if at least one of DM-RS, PSFCH, PSSCH, CSI-RS, PT-RS, or SSB partially overlaps with the PRS, it is not transmitted. Alternatively, when at least one of SSB, DMRS, PTRS, or CSI is on the same resource element, the UE is not expected to receive the PRS.

[0124] Figure 10a An example of overlapping Position Reference Signals (PRS) in sidelink communication is shown. In this example, the overlapping portion of the PRS is not transmitted. Because the PRS bandwidth is larger than other signal portions, it is used to transmit other signals. The start time of the PRS can be earlier than that of other signals.

[0125] Figure 10b This illustrates another example of overlapping Position Reference Signals (PRS) in lateral link communication. The overlapping portion of the PRS is not transmitted. It can be used to transmit other signals. The PRS bandwidth is greater than the portions of other signals. The start time of the other signals can be earlier than the PRS.

[0126] Figure 10cThis illustrates another example of overlapping Position Reference Signals (PRS) in lateral link communication. The overlapping portion of the PRS is not transmitted. It can be used to transmit other signals. The PRS bandwidth is the same as the other signal portions. The start times of the other signals are earlier than the PRS.

[0127] Figure 10d This illustrates another example of overlapping Position Reference Signals (PRS) in lateral link communication. The overlapping portion of the PRS is not transmitted. It can be used to transmit other signals. The PRS bandwidth can be the same as other signal portions. The PRS start time can be earlier than other signals.

[0128] Figure 10e This illustrates another example of overlapping Position Reference Signals (PRS) in sidelink communication. The overlapping portion of the PRS is not transmitted. It can be used to transmit other signals. The PRS time domain can be the same as other signal portions. The starting frequency portion of the PRS can be higher than other signals.

[0129] Figure 10f This illustrates another example of overlapping Position Reference Signals (PRS) in lateral link communication. The overlapping portion of the PRS is not transmitted. It can be used to transmit other signals. The PRS time domain can be the same as other signal portions. The starting frequency portion of the PRS is lower than other signals.

[0130] Mapping / Association in Side Link

[0131] Figure 11 An example of a mapping configuration communicated in a side link is shown. In box 1102, a set of data configurations(s) is associated or mapped to a set of location configurations(s). The mapping or association includes transmission, indication, sensing, or selection of the set of location configurations(s)(s) based on the mapping or association of the set of data configurations(s). In box 1104, communication is conducted via the side link and is based on the mapping or association. Communication includes sending, receiving, broadcasting, unicasting, multicasting, forwarding, requesting, responding, or exchanging.

[0132] This group (or group) of data configurations or this group (or group) of location configurations is indicated or triggered by parameters or parameter sets, such as Side Link Control Information (SCI) parameters, Radio Resource Control (RRC), Downlink Control Information (DCI), Media Access Control Element (MAC CE), Non-Access Stratum (NAS), Higher Layer or System Information Block x (SIBx), where x is an integer. This group (or group) of data configurations is indicated or triggered by parameters or parameter sets. Parameters or parameter sets are associated with or mapped to this group (or group) of location configurations. This group (or group) of data configurations and the mapped or associated (or group) of location configurations are configured or triggered by one or more Side Link Control Information (SCIs), (multiple) parameters, or (multiple) parameter sets. This group (or group) of location configurations is indicated or triggered by (multiple) parameters or parameter sets. Parameters or parameter sets are associated with or mapped to this group (or group) of data configurations. This group (or group) of location configurations and the mapped or associated (or group) of data configurations are configured or triggered by one or more Side Link Control Information (SCIs), (multiple) parameters, or (multiple) parameter sets.

[0133] The parameters or parameter set are indicated by the following: Sidelink Positioning Resource Signal (SL-PRS) resource pool index, one or more PRS time periods, PRS time resources, PRS frequency resources, PRS priority, deactivation / activation parameters, PRS time resources, PRS frequency resources, time gap between PRS and sidelink channel, minimum time gap between PRS and sidelink channel, SL-PRS hop ID, comb size, hop ID, first symbol of PRS within a time slot, size of SL-PRS resource in the time domain, resource element offset, reference point, location of point A, combination of PRS resource size and comb size in the time domain, PRS sequence ID, PRS sequence set information, PRS frequency layer information, resource ID / index, carrier frequency ID / index, BWP ID / index, resource set ID / index, or frequency layer ID / index. Multiple PRS time periods are associated with the resource reservation interval of the mapped or associated data resource pool. Multiple PRS time periods are in milliseconds (msec) or at least one of multiple logical time slots. Multiple PRS time slots are converted from msec units to multiple logical time slot units. This group of multiple data configurations is mapped or associated with P location configurations, where P is an integer greater than 1. The P location configurations are bound, and one of the P PRS configurations is disabled or invalidated, while the other P-1 PRS configurations are disabled or invalidated. When multiple data configurations are not mapped or associated, the multiple data configurations are disabled or invalidated.

[0134] This group (or multiple) of data configurations includes one or more data configurations. This group (or multiple) of positioning configurations includes one or more positioning configurations. This group (or multiple) of data configurations or this group (or multiple) of positioning configurations includes at least one of the following, or at least one of the following: a bandwidth portion (BWP), a carrier frequency, a resource pool, or a timing. This group (or multiple) of data configurations can be configured in a bandwidth portion (BWP), a carrier frequency, or a resource pool. This group (or multiple) of data configurations can be configured in one or more bandwidth portions (BWPs), one or more carrier frequencies, or one or more resource pools. This group (or multiple) of positioning configurations can be configured in one or more bandwidth portions (BWPs), one or more carrier frequencies, or one or more resource pools. The group(s) of data configurations or the group(s) of positioning configurations are: pre-configured, configured by Radio Resource Control (RRC) configuration messages, configured by Side Link Control Information (SCI) parameters, configured by Downlink Control Information (DCI) parameters, configured by Media Access Control Element (MAC CE) parameters, configured by Non-Access Stratum (NAS) parameters, or configured by System Information Block x (SIBx) parameters, where x is an integer.

[0135] Mapping or association can be based on a ratio. In some embodiments, mapping or association includes a mapping or association ratio, the group(s) of data configuration(s), or the group(s) of location configuration(s). The mapping or association ratio includes at least one of the ratio of the group(s) of data configuration(s) to the group(s) of location configuration(s), or the ratio of the group(s) of location configuration(s) to the group(s) of data configuration(s). The value of the mapping or association ratio is at least one of 1:M, N:1, or M:N, where M and N are integers. In some embodiments, the mapping ratio can be 1:1, 1:2, 1:4, 2:1, 4:1, and / or 6:1. Alternatively, the mapping ratio can be configured by (multiple) higher-level parameters, control signaling, or a default.

[0136] In the first embodiment, M data resources / configurations are mapped to N location resources / configurations. Whether the mapped location resources / configurations can be sent together with the data resources / configurations(s) may depend on the sensing or selection results of the data resources / configurations. In some embodiments, the UE may sense only the data resources / configurations, or alternatively, the UE may not sense the location resources / configurations or PRS.

[0137] In a second embodiment, one data resource / configuration is mapped to N location resources / configurations. In some embodiments, only the UE can sense the data resource / configuration. In other embodiments, only the UE senses all (multiple) location resources / configurations. Whether the mapped location resources / configurations can be sent together with the data resource may depend on the sensing or selection result of the data resource / configuration. Alternatively, whether the mapped data resource / configuration can be sent together with the location resources / configurations may depend on the sensing or selection result of the data resource / configuration. If at least one of the N location resources / configurations is occupied or invalid, the other N-1 location resources or configurations may be unavailable. In some embodiments, N location resources / configurations can always be bundled. Alternatively, the authentication (data or location configuration authentication) of each configured location resource / configuration is associated with or related to another configuration. Alternatively, the location resources / configurations may not be associated or the mapping may be invalid. Alternatively, the location resources / configurations may not be associated or the mapping may be valid.

[0138] In the third embodiment, a Sub-Link Control Information (SCI) resource / configuration in the sensing window is reserved by default or through higher-layer configuration or control signaling to retain N PRS configurations / resources in the selection window. In some embodiments, the resource can be a sub-channel or a resource pool. In some embodiments, the UE can sense only all(multiple) positioning resources / configurations. In some embodiments, one or more of the N PRS configurations / resources can be scheduled by the SCI in the selection window. In some embodiments, if at least one of the N PRS configurations is occupied, invalid, or disabled, the other N-1 PRS configurations may be unavailable due to the absence of SCI resources. In some embodiments, N positioning / PRS resources / configurations can always be bundled.

[0139] In the fourth embodiment, N SCIs are mapped to a PRS resource / configuration via higher-layer signaling or by default. In some embodiments, the PRS resource / configuration can be sensed and selected. Alternatively, if at least one of the SCIs is successfully sensed, the PRS resource / configuration will be sent without sensing. When at least one of the SCIs is successfully sensed, the PRS resource / configuration will begin sensing. If all SCIs are successfully sensed, the PRS resource / configuration will be sent without sensing. If all SCIs are successfully sensed, the PRS resource / configuration will begin sensing.

[0140] In one embodiment, if X% of SCIs are successfully sensed, PRS resources / configurations will be sent without sensing. Alternatively, if X% of SCIs are successfully sensed, PRS resources / configurations will begin sensing. In some embodiments, X is associated with the priority of a date indicated by the SCI format. Alternatively, X is associated with the highest / lowest priority of a date indicated by the SCI format.

[0141] In some embodiments, when multiple location configurations are not mapped or associated, the multiple location configurations are disabled or invalidated. Mapping or association is configured by the communication device. The communication device includes a user equipment (UE), network node, base station, local server, transmit / receive point (TRP), or location management function (LMF). When multiple data or location configurations are not mapped or associated, the communication device cannot use the multiple data or location configurations for communication. When multiple data or location configurations are not mapped or associated, the communication device cannot sense or select. For the deactivation / activation parameter, "1" indicates activation and "0" indicates deactivation, or "0" indicates activation and "1" indicates deactivation. Sidelink channels include the Physical Side Link Shared Channel (PSSCH), Physical Side Link Shared Channel (PSSCH), Physical Side Link Feedback Channel (PSFCH), or Physical Side Link Broadcast Channel (PSBCH). For mapping or association, the association period is based on the PRS period. The associated time period is associated with the PRS time period in the group (or multiple) location configurations and the data time period in the group (or multiple) data configurations.

[0142] Resource configuration mapping

[0143] When a sidelink data radio bearer (DRB) should be added based on the RRCReconfigurationSidelink configuration, the sidelink DRB configuration can be selected as a necessary transmission parameter for the sidelink DRB, depending on the UE implementation. This can come from the received sl-ConfigDedicatedNR (if in RRC_CONNECTED), SIB12 (if in RRC_IDLE / INACTIVE), or SidelinkPreconfigNR (if not in coverage), whose RLC mode is the same as the RLC mode configured in RRCReconfigurationSidelink.

[0144] Figure 12a An example of resource configuration for mapping communication in sidelink communication is shown. Specifically, Figure 12aThis is an example of the structural organization for the resource configuration of the Information Element (IE) SL-ConfigDedicatedNR, which specifies dedicated configuration information for new radio (NR) side link communication. Frequency (i.e., carrier frequency) and bandwidth portion (BWP) are part of its configuration, and can exist in two modes with a maximum number of Tx pools or Rx pools.

[0145] Figure 12b Another example of resource configuration for mapping it for communication in side link communication is shown. Specifically, Figure 12b This is another example of a structured organization that includes pre-configured frequencies (i.e., carrier frequencies), but is otherwise similar. Figure 12a Except that it does not specify a maximum of 8 time (Tx) pools in the first mode (Model 1) and an SL-PHY-MAC-RLC-Config above that frequency (i.e., carrier frequency).

[0146] Figure 12c Another example of resource configuration for mapping it for communication in side link communication is shown. Specifically, Figure 12c This includes the configuration of carrier frequency level and carrier frequency / resource pool level mapping. In this embodiment, with... Figure 12a In contrast, carrier frequencies can be configured. When PRS is used in a sidelink, the structure for resource configuration of (carrier) frequency level mapping (where N, O, P, Q, R are integers) is defined. Specifically, additional carrier frequencies exist. When one or more carrier frequencies should be configured, frequencies 0 to N can refer to the carrier frequencies used for data. This signaling can be active on one or more carrier frequencies. In some embodiments, the number of Rx pools, Tx pools for mode 1, Tx pools for mode 2, and Tx pools for exceptions can be configured or defaulted. Resource pools of at least one of the following types can be included: Rx pools, Tx pools for mode 1, Tx pools for mode 2, and Tx pools for exceptions. Mapping can be configured by higher-layer parameters, control signaling, or defaulted.

[0147] In some embodiments, mapping may include: (1) a mapping ratio of (multiple) data (carrier) frequencies to (multiple) PRS (carrier) frequencies of 1:1, 2:1, 1:N, or M:N, where M and N are integers; or (2) a mapping ratio of (multiple) data pool resources to (multiple) PRS pool resources, as further described below. For example, (multiple) data Rx pool resources mapped to (multiple) PRS Rx pool resources may have a ratio of A:B, where A <= 16, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 2 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 1 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. Multiple data Tx pool resources mapped to PRS Tx pool resources for anomalies can have a mapping ratio of A:B, where A <= 1, and A and B are integers. One or more carrier frequencies can be introduced into the side link for localization.

[0148] Figure 12d Another example of resource configuration for mapping to communicate in side link communication is shown. In this embodiment, with Figure 12b In contrast, the carrier frequency can be configured. Figure 12d The diagram shows structures with different frequencies, or structures for resource configurations used for frequency level mapping (where N, O, P, and R are integers).

[0149] When one or more carrier frequencies should be configured, frequencies 0 to N can refer to the carrier frequencies used for data. The signaling can be active on one or more carrier frequencies. The mapping ratio between the data carrier frequency and the PRS carrier frequency is at least one of: 1:1, 2:1, 1:N, or M:N, where M and N are integers. The number of Rx pools, Tx pools for mode 2, or Tx pools for anomalies can be configured or set to the default. At least one of the resource pool types can include: Rx pools, Tx pools for mode 2, or Tx pools for anomalies. The mapping can be configured by higher-level parameters or can be the default.

[0150] In some embodiments, mapping may include: (1) a mapping ratio of 1:1, 1:2, or 1:N between the data carrier frequency and the PRS carrier frequency; or (2) a mapping ratio between (multiple) data pool resources and (multiple) PRS pool resources, as further described below. For example, (multiple) data Rx pool resources mapped to (multiple) PRS Rx pool resources may have a ratio of A:B, where A <= 16, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 2 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 1 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for anomalies may have a mapping ratio of A:B, where A <= 1, and A and B are integers. One or more carrier frequencies can be introduced into the side link for positioning.

[0151] Figure 12e Another example of resource configuration for mapping it for communication in side link communication is shown. Specifically, Figure 12e This includes the configuration of bandwidth portion (BWP) level and resource pool level mappings. In this embodiment, with Figure 12a or Figure 12c Compared to (where frequency is configured), BWP can be configured. When PRS is used on a side link, the structure for resource configuration used for BWP level mapping (where N, O, P, Q, R are integers) is specified. Specifically, there are additional BWP levels.

[0152] BWP 0 through BWP N can refer to the data level when one or more are configured. Signaling can be active at one or more BWPs. The number of Rx pools, Tx pools for mode 1, Tx pools for mode 2, or Tx pools for exceptions can be configured or left as default. At least one of the resource pool types can include: Rx pools, Tx pools for mode 1, Tx pools for mode 2, or Tx pools for exceptions. Mapping can be configured by higher-level parameters, control signaling, or by default.

[0153] In some embodiments, the mapping may include: (1) a mapping ratio of data BWP to PRS BWP of 1:1, 1:2, 1:N, or M:N, where M and N are integers; or (2) a mapping ratio of (multiple) data pool resources to (multiple) PRS pool resources, as further described below. For example, (multiple) data Rx pool resources mapped to (multiple) PRS Rx pool resources may have a ratio of A:B, where A <= 16, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 2 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 1 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. Multiple data Tx pool resources mapped to PRS Tx pool resources for anomalies can have a mapping ratio of A:B, where A <= 1, and A and B are integers. One or more BWPs can be introduced into the side link for location.

[0154] Figure 12f Another example of resource configuration for mapping it for communication in side link communication is shown. Specifically, Figure 12f This includes the configuration of bandwidth portion (BWP) level and resource pool level mappings. In this embodiment, with Figure 12b or Figure 12d Compared to (where frequency is configured), BWP can be configured. When PRS is used on a side link, the structure for resource configuration used for BWP level mapping (where N, O, P, Q, R are integers) is specified. Specifically, there are additional BWP levels.

[0155] BWP 0 through BWP N can refer to the data level when one or more are configured. Signaling can be active at one or more BWPs or carrier frequencies. The number of Rx pools, Tx pools for mode 2, or Tx pools for anomalies can be configured or left as default. At least one of the resource pool types can include: an Rx pool, a Tx pool for mode 2, or a Tx pool for anomalies. Mapping can be configured by higher-layer parameters or left as default. The mapping ratio of data carrier frequency to PRS carrier frequency is 1:N, where (multiple) other BWPs are mapped to another BWP.

[0156] In some embodiments, mapping may include: (1) a mapping ratio of (multiple) data BWPs to (multiple) PRS BWPs of 1:1, 1:2, 1:N, or M:N, where M and N are integers; or (2) a mapping ratio of (multiple) data pool resources to (multiple) PRS pool resources, as further described below. For example, (multiple) data Rx pool resources mapped to (multiple) PRS Rx pool resources may have a ratio of A:B, where A <= 16, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 2 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. (Multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 1 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. Multiple data Tx pool resources mapped to PRS Tx pool resources for anomalies can have a mapping ratio of A:B, where A <= 1, and A and B are integers. One or more BWPs can be introduced into the side link for location.

[0157] Figure 12g Another example of resource configuration for mapping communication in sidelink communication is shown. In this embodiment, resource pool level can be configured via resource pool level mapping. The structure of the resource configuration for resource pool level mapping when PRS is used in the sidelink is shown (where N, O, P, Q, R are integers).

[0158] The number of Rx pools, Tx pools for mode 2, and Tx pools for exceptions can be configured or set to the default. At least one of the (multiple) PRS resource pools and type resource pools can include: an Rx pool, a Tx pool for mode 1, a Tx pool for mode 2, or a Tx pool for exceptions. Mapping can be configured by higher-level parameters or left as default.

[0159] In some embodiments, mapping may include a mapping ratio from (multiple) data pool resources to (multiple) PRS pool resources. The (multiple) data Rx pool resources mapped to (multiple) PRS Rx pool resources may have a ratio A:B, where A <= 16, and A and B are integers. The (multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 2 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. The (multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 1 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. The (multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for exceptions may have a mapping ratio of A:B, where A <= 1, and A and B are integers.

[0160] Figure 12h Another example of resource configuration for mapping to communicate in sidelink communication is shown. In this embodiment, the resource pool level can be configured via resource pool-level mapping. The structure of the resource configuration for resource pool-level mapping (where N, O, P, Q, R are integers) is shown when the PRS is used in the sidelink. The mapping can be configured by higher-level parameters or by default.

[0161] In some embodiments, mapping may include a mapping ratio from (multiple) data pool resources to (multiple) PRS pool resources. The (multiple) data Rx pool resources mapped to (multiple) PRS Rx pool resources may have a mapping ratio of A:B, where A <= 16, and A and B are integers. The (multiple) data Tx pool resources mapped to (multiple) PRS Tx pool resources for mode 2 may have a mapping ratio of A:B, where A <= 8, and A and B are integers. The (multiple) data Tx pool resources for exceptions mapped to (multiple) PRS Tx pool resources may have a mapping ratio of A:B, where A <= 1, and A and B are integers.

[0162] exist Figures 12a-12h In some embodiments, if a configuration is not mapped, it may be invalid. Furthermore, if a configuration is not mapped, a node may not use that configuration for transmission. Additionally, if a configuration is not mapped, a node with that configuration may perform sensing and selection itself.

[0163] exist Figures 12a-12h In some embodiments, the mapping can be triggered or activated. Triggering / activation can utilize multiple parameters in control signaling, such as MAC CE, RRC, DCI, and SCI. In some embodiments, the parameters can be indicated in a bitmap format. In some embodiments, "1" indicates activation, and "0" indicates deactivation. In some embodiments, the parameters can be indicated using a resource ID / index. In some embodiments, the resource ID / index can be a carrier frequency ID / index, a BWP ID / index, or a resource pool ID / index.

[0164] Resource allocation mode

[0165] A resource pool can include at least one of PSSCH, PSCCH, PSFCH, or PRS. A PRS can include at least one of the following parameters: PRS period, RB set, time interval, or CandidateResourceType. Below are example capabilities for calculating locations.

[0166]

[0167] Figures 13a-13dAn example of the PSFCH data pattern in sidelink communication is shown. PRS can be configured using configuration methods, including using higher-layer parameters and SCI, using higher-layer parameters, or using higher-layer SCI. The PRS time period can be indicated by higher-layer parameters or by default. The PRS symbol can be indicated by DCI, SCI, or by default.

[0168] Figure 13a An example of PSFCH mode in sidelink communication is shown. This is an example of PSFCH mode in sidelink communication. Figure 13a An arrangement with gaps, automatic gain control (AGC), and physical side link feedback channel (PSFCH) is shown.

[0169] Figure 13b This shows another example of PRS mode in lateral link communication. This is an example of PRS mode in lateral link communication. Figure 13b An arrangement with gaps, automatic gain control (AGC), and positioning reference signal (PRS) is shown, which can be used with... Figure 13a It is associated with the PSFCH mode.

[0170] Figure 13c This shows another example of PRS mode in lateral link communication. Figure 13c An arrangement with a gap, automatic gain control (AGC), physical side link feedback channel (PSFCH), and positioning reference signal (PRS) is shown. The PRS and PSFCH are in the same time slot but in different time domains, and the PSFCH and PRS are in the same frequency domain. The PRS is positioned before the PSFCH in the time domain.

[0171] Figure 13d This shows another example of PRS mode in lateral link communication. Figure 13d An arrangement with gaps, automatic gain control (AGC), positioning reference signal (PRS), and physical side link feedback channel (PSFCH) is shown. The PRS and PSFCH are in time slots but in different time domains, and the PSFCH and PRS are in the same frequency domain. The PSFCH is positioned before the PRS in the time domain.

[0172] The aforementioned systems and processes can be encoded in a signal-bearing medium, a computer-readable medium such as memory, programmed into a device such as one or more integrated circuits, one or more processors, or processed by a controller or computer. The data can be analyzed in a computer system and used to generate a spectrum. If these methods are executed by software, the software can reside in or interface with a storage device, synchronizer, communication interface, or non-volatile or volatile memory communicating with a transmitter. A circuit or electronic device is designed to transmit data to another location. The memory can include an ordered list of executable instructions for implementing logical functions. The described logical functions or any system elements can be implemented by optical circuit systems, digital circuit systems, source code, analog circuit systems, analog sources (such as analog electrical, audio, or video signals), or combinations thereof. The software can be embodied in any computer-readable or signal-bearing medium for use by or in conjunction with an instruction-executable system, apparatus, or device. Such a system can include a computer-based system, a processor-integrated system, or another system that can selectively retrieve instructions from an instruction-executable system, apparatus, or device that can also execute instructions.

[0173] "Computer-readable medium," "machine-readable medium," "transmitting signal" medium, and / or "signal-bearing medium" can include any device that stores, transmits, propagates, or transmits software used by or in conjunction with an instruction-executable system, apparatus, or device. Machine-readable media may optionally be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, devices, or transmission media. A non-exhaustive list of examples of machine-readable media includes: "electronic" electrical connections having one or more wires, portable magnetic disks or optical disks, volatile memory (such as random access memory "RAM"), read-only memory "ROM," erasable programmable read-only memory (EPROM or flash memory), or optical fiber. Machine-readable media may also include tangible media on which software is printed, as the software may be electronically stored as an image or in another format (e.g., by optical scanning) and then compiled, and / or interpreted or otherwise processed. The processed medium may then be stored in computer and / or machine memory.

[0174] The illustrations of the embodiments described herein are intended to provide a general understanding of the structure of various embodiments. These illustrations are not intended as a complete description of all elements and features of devices and systems utilizing the structures or methods described herein. Many other embodiments will be apparent to those skilled in the art upon review of this disclosure. Other embodiments may be utilized and derived from this disclosure, allowing structural and logical substitutions and changes to be made without departing from the scope of this disclosure. Furthermore, these illustrations are representative only and may not be drawn to scale. Some scales in the illustrations may be exaggerated, while others may be minimized. Therefore, this disclosure and the accompanying drawings should be considered illustrative rather than restrictive.

[0175] One or more embodiments of this disclosure may be referred to herein, individually and / or collectively, by the term "invention," merely for convenience and not intended to voluntarily limit the scope of this application to any particular invention or inventive concept. Furthermore, although specific embodiments have been shown and described herein, it should be understood that any subsequent arrangements designed to achieve the same or similar purposes may replace the specific embodiments shown. This disclosure is intended to cover any and all subsequent adaptations or variations of the various embodiments. Combinations of the above embodiments and other embodiments not specifically described herein will be apparent to those skilled in the art upon review of the description.

[0176] The term "coupled" is defined as a direct connection or an indirect connection via one or more intermediate components. Such intermediate components may include hardware-based and software-based components. Variations in the arrangement and type of components may be made without departing from the spirit or scope of the claims set forth herein. More, different, or fewer components may be provided.

[0177] The subject matter disclosed above is intended to be illustrative rather than restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments falling within the true spirit and scope of the invention. Therefore, to the fullest extent permitted by law, the scope of the invention will be determined by the broadest permissible interpretation of the following claims and their equivalents, and should not be construed as limited or restricted by the foregoing detailed description. While various embodiments of the invention have been described, it will be apparent to those skilled in the art that further embodiments and implementations are possible within the scope of the invention. Therefore, the invention is not limited except as provided in the appended claims and their equivalents.

Claims

1. A method for wireless communication, comprising: The second user equipment (UE) receives first sidelink information from the first user equipment, wherein the first sidelink information includes a sidelink positioning reference signal (SL-PRS) configuration, and the SL-PRS configuration includes: SL-PRS Sequence ID used to generate SL-PRS sequences for transmission on SL-PRS resources; The second user equipment sends second side link information to the first user equipment, wherein the second side link information is used for positioning and includes the Rx-Tx time difference measured by the second user equipment and the granularity for the Rx-Tx time difference measurement.

2. The method according to claim 1, wherein the first side traverse information includes response time.

3. The method according to claim 1, wherein the second-side crosslink information further includes at least one of the following: location information, UE capability, or reference signal received power (RSRP).

4. The method of claim 3, wherein the UE capability includes the capability to support positioning methods.

5. The method of claim 4, wherein the positioning method includes round-trip time (RTT).

6. The method of claim 1, wherein the SL-PRS configuration is indicated in control signaling, and the control signaling includes Non-Access Stratum (NAS).

7. A method for wireless communication, comprising: A first user equipment (UE) sends first sidelink information to a second user equipment, wherein the first sidelink information includes a sidelink positioning reference signal (SL-PRS) configuration, and the SL-PRS configuration includes: SL-PRS Sequence ID used to generate SL-PRS sequences for transmission on SL-PRS resources; The first user equipment receives second side hop information from the second user equipment, wherein the second side hop information is used for positioning and includes the Rx-Tx time difference measured by the second user equipment and the granularity for the Rx-Tx time difference measurement.

8. The method of claim 7, wherein the first side link information includes response time.

9. The method of claim 7, wherein the second-side crosslink information further includes at least one of the following: location information, UE capability, or reference signal received power (RSRP).

10. The method of claim 9, wherein the UE capability includes the capability to support a positioning method.

11. The method of claim 10, wherein the positioning method includes at least round-trip time (RTT).

12. The method of claim 7, wherein the SL-PRS configuration is indicated in control signaling, and the control signaling includes Non-Access Stratum (NAS).

13. A wireless communication device, comprising at least one processor, said at least one processor being configured to: Receive first sidelink information from user equipment, wherein the first sidelink information includes a sidelink positioning reference signal (SL-PRS) configuration, and the SL-PRS configuration includes: SL-PRS Sequence ID used to generate SL-PRS sequences for transmission on SL-PRS resources; Send second-side hop information to the user equipment, wherein the second-side hop information is used for positioning and includes the Rx-Tx time difference measured by the wireless communication device and the granularity for the Rx-Tx time difference measurement.

14. The device of claim 13, wherein the first side link information includes response time.

15. The device of claim 13, wherein the second-side crosslink information further includes at least one of the following: location information, UE capability, or reference signal received power (RSRP).

16. A wireless communication device comprising at least one processor configured to implement the method of claim 7.

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