Process for sensing results sharing from LTE sidelink to NR sidelink

Abstract

Methods, systems, devices, and computer programs are disclosed for information sharing between an LTE sidelink module of a UE and an NR sidelink module of the UE. In one aspect, a method may include the actions of receiving, by the NR sidelink module of the UE, LTE sensing results autonomously provided by the LTE sidelink module of the UE; and interpreting, by the NR sidelink module of the UE, the received LTE sensing results autonomously provided by the LTE sidelink module of the UE.

Description

Background Art

[0001] In some wireless communication networks, a user equipment (UE) can communicate with another UE without routing the communication through a network node using so-called sidelink communications. A transmitting UE that wants to initiate a sidelink communication can determine available resources (e.g., sidelink resources) and can select a subset of these resources based on a resource allocation scheme to communicate with a receiving UE. This dynamic resource sharing between two different UEs is called inter-UE sharing. Summary of the invention

[0002] The present disclosure relates to systems, methods and computer programs for sharing sensing results from the LTE side link to the NR side link of the same UE (which may be referred to as intra-UE information sharing). In particular, the present disclosure relates to how the LTE side link module is configured to share the LTE side link sensing results with the NR side link module, how the LTE side link module shares the LTE side link sensing results with the NR side link module, and the content of the LTE side link sensing results shared with the NR side link module. In addition, the present disclosure also relates to how the NR side link module uses the LTE side link sensing results received by the NR side link module.

[0003] According to an innovative aspect of the present disclosure, a method for information sharing between an LTE side link module of a UE and an NR side link module of the UE is disclosed. In one aspect, the method may include the following actions: determining, by the NR side link module of the UE, that a trigger condition for information sharing has been met; and based on the determination by the NR side link module of the UE that the trigger condition for information sharing has been met, sending, by the NR side link module of the UE, an explicit request for LTE sensing results to the LTE side link module of the UE.

[0004] Other aspects include apparatus, systems, and computer programs for performing the actions of the aforementioned methods.

[0005] The innovative method may include other optional features. For example, in some implementations, the trigger condition may include a determination by the NR side link module of the UE that a resource selection operation is to be performed.

[0006] In some specific implementations, the trigger condition may include a determination by the UE's NR sidelink module that a resource reselection operation is to be performed.

[0007] For example, in some implementations, the trigger condition may include a determination by the UE's NR sidelink module that a resource reassessment or resource preemption operation is to be performed.

[0008] In some specific implementations, sending an explicit request for LTE sensing results by the NR sidelink module of the UE to the LTE sidelink module of the UE may include sending a single explicit request for LTE sensing results by the NR sidelink module of the UE to the LTE sidelink module.

[0009] In some specific implementations, sending an explicit request for LTE sensing results by the NR side link module of the UE to the LTE side link module of the UE may include periodically sending the explicit request for LTE sensing results by the NR side link module to the LTE side link module of the UE.

[0010] In some specific implementations, the method may also include: receiving, by the UE's NR side link module, LTE sensing results from the LTE side link module in response to a sent request for the LTE sensing results; interpreting, by the UE's NR side link module, the received LTE sensing results from the LTE side link module; and using, by the UE's NR side link module, the interpreted LTE sensing results during a resource selection process performed by the UE's NR side link module.

[0011] In some specific implementations, the method may also include configuring, by the NR sidelink module of the UE, intra-UE information sharing with the LTE sidelink module of the UE.

[0012] In some implementations, the NR sidelink module of the UE may interpret the LTE sensing results based on a configuration of intra-UE information sharing by the NR sidelink module and the LTE sidelink module of the UE.

[0013] In some specific implementations, configuring intra-UE information sharing with an LTE sidelink module of the UE by an NR sidelink module of the UE may include configuring one or more sensing parameters or one or more resource selection parameters.

[0014] In some implementations, the one or more sensing parameters or the one or more resource selection parameters may include a resource allocation mode, sensing window information, an RSRP threshold for determining whether a resource is occupied, resource selection information, data priority, C resel or data periodicity.

[0015] In some specific implementations, the intra-UE information sharing configured by the NR sidelink module of the UE and the LTE sidelink module of the UE may include configuration information sharing information.

[0016] In some implementations, the information sharing information may include information sensing periodicity performed by the NR side link module or the LTE side link module.

[0017] In some specific implementations, the intra-UE information sharing configured by the NR side link module of the UE and the LTE side link module of the UE may include configuring resource pool related information.

[0018] In some specific implementations, the resource pool related information may include a resource pool index, an LTE resource pool configuration, an NR resource pool configuration, or an NR side link parameter set.

[0019] In some implementations, the content of the explicit request may include one or more of the following: (i) a time window for LTE sidelink sensing, (ii) a time window [n+T1, n+T2] for NR sidelink resource selection, (iii) a latest time at which shared information needs to be received, (iv) an RSRP threshold for determining occupied resources in LTE sidelink sensing, (v) data priority and periodicity for NR sidelink transmission, (vi) a number of subchannels to be used for NR sidelink data transmission, (vii) a sidelink subcarrier spacing, (viii) a resource pool index, (ix) a C resel , or (x) information sharing periodicity.

[0020] In some specific implementations, the content of the explicit request may include the same content as the inter-UE coordination scheme 1.

[0021] In some specific implementations, the content of the inter-UE coordination scheme 1 may include: (i) SCI format 2-C, in which the offer / request indicator field is 1; or (ii) inter-UE coordination request MAC CE.

[0022] In some implementations, the content of the LTE sensing result may include (i) a reference subframe location or (ii) multiple parameters of one or more parameters indicating a non-preferred resource set from the LTE sidelink.

[0023] In some implementations, the reference subframe position may include a DFN or a subframe index.

[0024] In some implementations, the reference subframe is equal to the starting subframe of the resource selection window indicated in the explicit request for LTE sensing results.

[0025] In some embodiments, one or more parameters indicating a non-preferred resource set from the LTE side link may include: (a) frequency resource locations for initial transmission and retransmission, (b) the lowest index of a subchannel for initial transmission, (c) time location for initial transmission, (d) a time gap between initial transmission and retransmission, (e) resource reservation periodicity, (f) priority, or (g) RSRP measurement results.

[0026] In some implementations, the initial transmission time position can include a time offset from a reference subframe or a number of time slots from a reference time slot / subframe position.

[0027] In some implementations, the non-preferred resource set from the LTE sidelink comes from (a) the UE's own resource reservation, (b) the UE's resource selection (reselection), or (c) another UE's resource reservation.

[0028] In some implementations, the non-preferred resources are occupied resources from the LTE sidelink.

[0029] In some specific implementations, the content of the LTE sensing result includes: (i) SCI format 2-C, in which the provide / request indicator field is 0; or (ii) inter-UE coordination request MAC CE.

[0030] In some embodiments, the content of the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission.

[0031] In some specific implementations, the method may also include: based on the UE's NR side link module determining that the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission, the UE's NR side link module determines to discard the NR side link transmission.

[0032] According to another innovative aspect of the present disclosure, another method for sharing information between an LTE side link module of a UE and an NR side link module of the UE is disclosed. In one aspect, the method may include: receiving, by the NR side link module of the UE, an LTE sensing result autonomously provided by the LTE side link module of the UE; and interpreting, by the NR side link module of the UE, the received LTE sensing result autonomously provided by the LTE side link module of the UE.

[0033] Other aspects include apparatus, systems, and computer programs for performing the actions of the aforementioned methods.

[0034] The innovative method may include other optional features. For example, in some implementations, the LTE sidelink module of the UE is configured to periodically provide LTE sensing results to the NR sidelink module of the UE.

[0035] In some embodiments, the LTE sidelink module of the UE is configured to provide LTE sensing results to the NR sidelink module of the UE non-periodically.

[0036] In some embodiments, the LTE sidelink module of the UE is configured to provide LTE sensing results to the NR sidelink module of the UE in response to determining that the LTE sidelink channel busy rate (CBR) has met a predetermined threshold.

[0037] In some implementations, if the CBR is greater than the predetermined threshold, then the CBR has satisfied the predetermined threshold.

[0038] In some specific implementations, the method may also include: using the interpreted LTE sensing results by the NR sidelink module of the UE during a resource selection process performed by the NR sidelink module of the UE.

[0039] In some specific implementations, the method may also include configuring, by the NR sidelink module of the UE, intra-UE information sharing with the LTE sidelink module of the UE.

[0040] In some embodiments, the NR sidelink module of the UE interprets the LTE sensing results based on a configuration of intra-UE information sharing by the NR sidelink module and the LTE sidelink module of the UE.

[0041] In some specific implementations, configuring intra-UE information sharing with an LTE sidelink module of the UE by an NR sidelink module of the UE may include configuring one or more sensing parameters or one or more resource selection parameters.

[0042] In some implementations, the one or more sensing parameters or the one or more resource selection parameters include a resource allocation mode, sensing window information, an RSRP threshold for determining whether a resource is occupied, resource selection information, data priority, C resel or data periodicity.

[0043] In some specific implementations, the intra-UE information sharing configured by the NR sidelink module of the UE and the LTE sidelink module of the UE may include configuration information sharing information.

[0044] In some implementations, the information sharing information may include information sensing periodicity performed by the NR side link module or the LTE side link module.

[0045] In some specific implementations, the intra-UE information sharing configured by the NR side link module of the UE and the LTE side link module of the UE may include configuring resource pool related information.

[0046] In some specific implementations, the resource pool related information may include a resource pool index, an LTE resource pool configuration, an NR resource pool configuration, or an NR side link parameter set.

[0047] In some implementations, the content of the LTE sensing result includes multiple parameters of (i) a reference subframe position or (ii) one or more parameters indicating a non-preferred resource set from the LTE sidelink.

[0048] In some implementations, the reference subframe position includes a DFN or a subframe index.

[0049] In some implementations, the reference subframe position is equal to the starting subframe of the resource selection window indicated in the explicit request for LTE sensing results.

[0050] In some embodiments, one or more parameters indicating a non-preferred resource set from the LTE side link include: (a) frequency resource locations of initial transmission and retransmission, (b) lowest index of a subchannel for initial transmission, (c) time location of initial transmission, (d) time gap between initial transmission and retransmission, (e) resource reservation periodicity, (f) priority, or (g) RSRP measurement results.

[0051] In some implementations, the initial transmission time position can include a time offset from a reference subframe or a number of time slots from a reference time slot / subframe position.

[0052] In some implementations, the non-preferred resource set from the LTE sidelink comes from (a) the UE's own resource reservation, (b) the UE's resource selection (reselection), or (c) another UE's resource reservation.

[0053] In some implementations, the non-preferred resources are occupied resources from the LTE sidelink.

[0054] In some specific implementations, the content of the LTE sensing result includes: (i) SCI format 2-C, in which the provide / request indicator field is 0; or (ii) inter-UE coordination request MAC CE.

[0055] In some embodiments, the content of the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission.

[0056] In some specific implementations, the method may also include: based on the UE's NR side link module determining that the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission, the UE's NR side link module determines to discard the NR side link transmission.

[0057] According to another innovative aspect of the present disclosure, a method for selecting (reselecting) NR sidelink resources using LTE sidelink information is disclosed. In one aspect, the method may include the following actions: determining, by an NR sidelink module of the UE, a set of NR sidelink resources overlapping with the indicated LTE sidelink resources; and selecting, by the NR sidelink module of the UE, a set of NR sidelink resources overlapping with the indicated LTE sidelink resources from the candidate resource set (S A ) to exclude the identified set of resources.

[0058] In some implementations, the predetermined time is the time at which S AAfter the stage of setting up the resource set in the NR resource selection window.

[0059] In some implementations, the predetermined time is after a stage of the NR resource selection procedure where the UE selects a resource from the S if the UE does not sense the candidate resource in a sensing window with a configured resource reservation period before the candidate time slot. A Exclude candidate resources from the .

[0060] In some implementations, the predetermined time is the time at which the NR resource selection process determines whether to select from S A After the stage of excluding additional candidate resources, and the determination of NR resource selection whether to select from S A The stage of excluding additional candidate resources in the NR resource selection process is the first step in the NR resource selection process. A The step is performed after a phase in which candidate resources that were not sensed by the UE in a sensing window with a configured resource reservation period before the candidate time slot are excluded.

[0061] In some implementations, (i) if the UE receives a reserved SCI with a candidate resource, and (ii) if the RSRP measurement result for the candidate resource is above the obtained RSRP threshold, the predetermined time is the time at which the NR resource selection process starts from the S. A After the stage of excluding candidate resources.

[0062] In some implementations, the predetermined time is after a stage in the NR resource selection process where the UE determines whether the helper UE has provided or will provide preferred resources or non-preferred resources.

[0063] In some implementations, the predetermined time is the time at which the UE selects from S A After a stage of excluding one or more non-preferred resources provided by the helper via the inter-UE coordination information.

[0064] In some implementations, the predetermined time is determined during the NR resource selection process. A Is the number of resources in less than X*M before continuing the NR resource selection process? total After the stage, M total is equal to the number of candidate single-slot resources, and X is equal to the configured or preconfigured percentage. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 is a flow chart for an example of processing for a request-based NR sidelink procedure that takes into account LTE sidelink sensing results.

[0066] Figure 2is a flow chart for another example of processing for a request-based NR sidelink procedure that takes into account LTE sidelink sensing results.

[0067] Figure 3 is a flow chart for an example of processing for a conditional-based NR sidelink procedure that takes into account LTE sidelink sensing results.

[0068] Figure 4 is a flowchart of another example of processing for a conditional-based NR sidelink procedure taking into account LTE sidelink sensing results according to one aspect of the present disclosure.

[0069] Figure 5 is a flowchart of an example of processing for the NR resource selection process.

[0070] Figure 6 is a diagram of an example of excluding candidate resources based on LTE sensing results.

[0071] Figure 7 is a flow chart of an example of a process for eliminating candidate resources based on LTE sensing results.

[0072] Figure 8 is an example of a wireless communication system.

[0073] Fig. 9 is a block diagram of an example of a user equipment (UE).

[0074] Fig.10 is a block diagram of an example of an access node.

[0075] Like reference symbols in the various drawings indicate like elements. DETAILED DESCRIPTION

[0076] The present disclosure relates to systems, methods and computer programs for sharing sensing results from the LTE side link to the NR side link of the same UE (which may be referred to as intra-UE information sharing). In particular, the present disclosure relates to how the LTE side link module is configured to share the LTE side link sensing results with the NR side link module, how the LTE side link module shares the LTE side link sensing results with the NR side link module, and the content of the LTE side link sensing results shared with the NR side link module. In addition, the present disclosure also relates to how the NR side link module uses the LTE side link sensing results received by the NR side link module.

[0077] For the purposes of this disclosure, an NR sidelink module refers to a software module, a hardware module, or a combination of both that manages and / or facilitates NR sidelink operations in an NR sidelink network (such as sidelink resource selection, sidelink resource utilization including transmission and reception, and sidelink resource sharing). Similarly, an LTE sidelink module refers to a software module, a hardware module, or a combination of both that manages or facilitates LTE sidelink operations in an LTE V2X network (such as sidelink resource selection, sidelink resource utilization including transmission and reception, and sidelink resource sharing).

[0078] In some implementations, the NR side link module and the LTE side link module can be implemented in separate modules. For example, in some implementations, each of the respective side link modules can be implemented as a different communication module or as part of a different communication module, which are configured to implement the functionality attributed to the respective side link module herein. In such implementations, there may be not only logical differences between the two side link modules, but also physical differences in, for example, hardware components used to implement the respective side link modules.

[0079] However, the present disclosure is not limited to this. On the contrary, in some specific implementations, the NR side link module and the LTE side link module can be implemented in a single module. For example, in some specific implementations, the NR side link module and the LTE side link module can both be implemented in a single communication module. In such specific implementations, each of the NR side link module and the LTE side link module can still implement the functionality attributed to each corresponding side link module herein. However, in the latter specific implementation in which the NR side link module and the LTE side link module are both implemented in a single module, the difference between the NR side link module and the LTE side link module can be more of a logical difference between the two corresponding side link modules, rather than a physical difference in the device components used to implement the corresponding side link modules.

[0080] In view of the above, the term "send" as used herein is not limited to sending information from the UE to the outside only in, for example, air transmission. On the contrary, the term "send" should be more broadly regarded as including, for example, data communications that may be completely or partially inside the UE. Therefore, for the purposes of this disclosure, the term "send" is intended to be broad enough to cover the communication between two modules within the same UE without the need to pass data over the air, regardless of whether the two modules are independent physical modules of the UE or two (or more) modules within the UE that are logically separated (physically implemented using a single module). That is, if such external communications also fall within the scope of the attached claims, nothing in this disclosure should prohibit the scope of "send" from also covering communications outside the UE. For the purposes of this disclosure, a module is intended to include a software module, a hardware module, or a combination of both for implementing the functionality of the module belonging to the present disclosure.

[0081] Request-based information sharing from LTE SL module to NR SL module

[0082] Request-based information sharing from the LTE side link (SL) module to the NR SL module may include the use of one or more triggering events, which, when satisfied, cause the NR SL module to send a request for information sharing (referred to herein as an explicit request) to the LTE side link module. The request for information sharing invokes LTE sensing results. The request for information sharing may be triggered when performing resource selection, resource reselection, resource evaluation, resource preemption, or any combination thereof. The request for information sharing from the NR SL module to the LTE SL module may be a single one-time request for information sharing. Alternatively, the request for information sharing from the NR SL module to the LTE SL module may be periodic.

[0083] Figure 1 is a flow chart for an example of a process 100 for a request-based NR sidelink procedure that takes into account LTE sidelink sensing results.

[0084] Execution of process 100 begins when the UE NR sidelink module sets up intra-UE information sharing with the LTE sidelink module (110). The UE NR sidelink module satisfies a trigger condition for an information sharing request (120). The UE NR sidelink module transmits a request for LTE sensing results to the LTE sidelink module (130). The UE NR sidelink module receives the LTE sensing results from the LTE sidelink module and interprets the LTE sensing results and applies the LTE sensing results to a resource selection process of the UE NR sidelink module (140).

[0085] Figure 21 is a flow chart for another example of a process 200 for a request-based NR sidelink procedure taking into account LTE sidelink sensing results. The process 200 will be described as being performed by an NR sidelink module of a UE. The example of a UE is Figure 8 UE805.

[0086] The NR sidelink module of the UE may begin performing process 200 (210) by determining that a trigger condition for information sharing has been met. In some implementations, the trigger condition may include a determination by the NR sidelink module of the UE that a resource selection operation is to be performed. In some implementations, the trigger condition may include a determination by the NR sidelink module of the UE that a resource reselection operation is to be performed. For example, in some implementations, the trigger condition may include a determination by the NR sidelink module of the UE that a resource reassessment or resource preemption operation is to be performed.

[0087] Subsequently, based on a determination by the UE's NR sidelink module that a trigger condition for information sharing has been met, the UE's NR sidelink module may send an explicit request for the LTE sensing result to the UE's LTE sidelink module (220). In some implementations, the sending phase 210 may include the UE's NR sidelink module sending a single explicit request for the LTE sensing result to the LTE sidelink module. In other implementations, the sending phase 210 may include the UE's NR sidelink module periodically sending the NR sidelink module explicit requests for the LTE sensing result to the UE's LTE sidelink module.

[0088] In some implementations, the NR sidelink module of the UE may continue to perform process 200 by receiving LTE sensing results from the LTE sidelink module in response to the sent request for LTE sensing results. In such implementations, the NR sidelink module may continue to perform process 200 by interpreting the received LTE sensing results from the LTE sidelink module. In such implementations, the NR sidelink module may continue to perform process 200 by using the interpreted LTE sensing results during a resource selection process performed by the NR sidelink module of the UE.

[0089] Configuration of UE inner link information sharing

[0090] The NR sidelink module of the UE can be configured to share intra-UE information with the LTE sidelink module. This configuration phase is Figure 1 110 and Figure 3 Similarly, in some specific implementations, the NR side link module of the UE may be configured as described in this article regarding Figure 2 Processing 200 and Figure 4 Process 400 describes the inter-UE information sharing process.

[0091] In some implementations, the NR side link module may configure one or more sensing and resource selection parameters of the LTE side link module. The configurable sensing and resource selection parameters of the LTE side link module may include resource allocation mode, sensing window information, resource selection information, data priority, C resel or data periodicity.

[0092] The resource allocation mode may include, for example, mode 1 or mode 2 in the NR side link module or mode 3 or mode 4 in the LTE side link module.

[0093] The sensing window information may include a transmission window length, a sensing window start time, a sensing window periodicity, and an RSRP threshold when determining whether resources within the sensing window are occupied. In some implementations, the RSRP threshold may depend on the data priority. In some implementations, the RSRP threshold may be (pre)configured for the NR side link resource pool.

[0094] Resource selection information may include length, start time, or periodicity.

[0095] In some implementations, the NR sidelink module may configure the intra-UE sharing process to share at least some information sharing information. The information sharing information that may be shared may include information sharing periodicity.

[0096] In some information, the NR sidelink module can configure the UE intra-sharing process to share at least some resource pool related information. The resource pool related information may include a resource pool index, an LTE resource pool configuration, an NR resource pool configuration, or an NR sidelink parameter set.

[0097] LTE resource pool configuration may include, for example, subchannel size, starting PRB, or resource reservation periodicity.

[0098] NR resource pool configuration may include subchannel size, starting PRB, resources or reservation periodicity.

[0099] The NR sidelink parameter set may include, for example, a sidelink BWP configuration.

[0100] Interpretation of received LTE sensing results from the LTE sidelink module

[0101] The NR side link module of the UE is based on Figure 1 110 and Figure 3 The UE's NR sidelink module can interpret the received LTE sensing results from the LTE sidelink module based on the configuration of the UE's information sharing processing at 310. Similarly, in some specific implementations, the UE's NR sidelink module can interpret the received LTE sensing results from the LTE sidelink module based on the same configuration of the UE's information sharing processing. Figure 2 Processing 200 and Figure 4 LTE sensing results in process 400.

[0102] For example, the LTE and NR resource pool configurations including their respective subchannel sizes, PRB locations of the resource pools, etc. as configured during the configuration phase are also used to interpret the received LTE sensing results.

[0103] In addition, the processing of NR SL subchannels that partially overlap with LTE SL subchannels is also based on the configuration of information sharing processing within the UE.

[0104] Handling 200 Optional Continue

[0105] In some implementations, the NR sidelink module may continue to perform process 200 by configuring intra-UE information sharing with the UE's LTE sidelink module.

[0106] In some implementations, the configuration phase of process 200 may include the NR sidelink module configuring one or more sensing parameters or one or more resource selection parameters related to intra-UE information sharing with the LTE sidelink. In such implementations, the one or more sensing parameters or one or more resource selection parameters include resource allocation mode, sensing window information, RSRP threshold for determining whether a resource is occupied, resource selection information, data priority, C resel or data periodicity.

[0107] In some implementations, the configuration phase of process 200 may include the NR sidelink module configuring information sharing information. In such implementations, the information sharing information includes information sensing periodicity performed by the NR sidelink module or the LTE sidelink module.

[0108] In some implementations, the configuration phase of process 200 may include the NR sidelink module configuring resource pool related information. In such implementations, the resource pool related information may include a resource pool index, an LTE resource pool configuration, an NR resource pool configuration, or an NR sidelink parameter set.

[0109] In some specific implementations, the NR sidelink module of the UE interprets the LTE sensing results based on the configuration of intra-UE information sharing between the NR sidelink module and the LTE sidelink module of the UE described above.

[0110] Although the foregoing configuration and interpretation process are described above as Figure 2 The optional extension of the process 200 of , but the present disclosure is not limited thereto. On the contrary, the aforementioned configuration and explanation process may also be optionally used as Figure 1 Stage 110 Figure 3 as part of or as part of stage 310 Figure 4A portion of the process 400 is performed.

[0111] Content of explicit request for information handling 100 and 200

[0112] Figure 1 Based on the request processing 100 and Figure 2 The request-based processes 200 each have a stage of processing for submitting an explicit request for LTE sensing results. For example, Figure 1 Stage 130 and Figure 2 In contrast, the content of the explicit request for LTE sensing results is not applicable to Figure 4 The process 300 or process 400 of FIG. 100 and FIG. 200 is described in more detail below.

[0113] The content of the explicit request for information sharing in stages 130 and 220 may include one or any combination of the following: (i) a time window for LTE sidelink sensing, (ii) a time window [n+T 1 ,n+T 2 ], (iii) the latest time at which the shared information needs to be received, (iv) the RSRP threshold for determining the occupied resources in LTE sidelink sensing, (v) the data priority and periodicity of NR sidelink sensing, (vi) the number of subchannels to be used for NR sidelink data transmission, (vii) the sidelink subcarrier spacing, (viii) the resource pool index, (ix) C resel , or (x) information sharing periodicity.

[0114] Alternatively, in some implementations, the contents of the explicit request for information sharing in phases 130 and 200 may include the same contents as in inter-UE coordination scheme 1. These contents may include SCI format 2-C in which the offer / request indicator field is 1 or an inter-UE coordination request MAC CE.

[0115] Handling 200 Optional Continue

[0116] In some implementations, the content of the explicit request of process 200 may include one or more of the following: (i) a time window for LTE sidelink sensing, (ii) a time window for NR sidelink resource selection [n+T1, n+T2], (iii) a latest time when the shared information needs to be received, (iv) an RSRP threshold for determining occupied resources in LTE sidelink sensing, (v) data priority and periodicity for NR sidelink transmission, (vi) a number of subchannels to be used for NR sidelink data transmission, (vii) a sidelink subcarrier spacing, (viii) a resource pool index, (ix) a C resel , or (x) information sharing periodicity.

[0117] In some specific implementations, the content of the explicit request of process 200 may include the same content as that of inter-UE coordination scheme 1.

[0118] In some specific implementations, the content of the inter-UE coordination scheme 1 may include: (i) SCI format 2-C, in which the offer / request indicator field is 1; or (ii) inter-UE coordination request MAC CE.

[0119] Content of shared information

[0120] Figure 1 Processing 100, Figure 2 Processing 200, Figure 3 Processing 300 and Figure 4 The process 400 involves sharing LTE side link information in the form of LTE sensing results with the NR side link module. Figure 1 Stage 140 Figure 2 Stage 220 Figure 3 Stage 320 and Figure 4 In stage 420, LTE sensing results are received by the NR side link module and from the LTE side link module. The content of these LTE sensing results is described in more detail below.

[0121] The content of the shared LTE sensing results may include one or more of the following: (i) reference subframe position, and (ii) one or more of the following for indicating non-preferred resources from the LTE side link: (a) frequency resource position of initial transmission and retransmission, (b) lowest index of the subchannel for initial transmission, (c) initial transmission time position, (d) time gap between initial transmission and retransmission, (e) resource reservation periodicity, (f) priority, (g) RSRP measurement results, (h) non-preferred resources can come from the reservation of other UEs (decoded by SCI) or from the device's own resource reservation or resource selection (reselection).

[0122] In some implementations, the reference subframe position may include a DFN and a subframe index. In some implementations, the reference subframe position may be equal to a starting subframe of a resource selection window indicated in a request for information sharing.

[0123] In some implementations, the initial transmit time position may be (i) indicated in a time offset (from a reference subframe), (ii) indicated in units of number of time slots from a reference time slot / subframe position, or (iii) ignored for the first indicated resource.

[0124] In some implementations, non-preferred resources can include reserved resources.

[0125] Alternatively, in some implementations and instead of the information described above, the LTE sensing result may include the same content as in the inter-UE coordination scheme 1. The content of the inter-UE coordination scheme 1 may include an SCI format 2-C or an inter-UE coordination information MAC CE in which the provision / request indicator field is set to 0.

[0126] Additionally, in some implementations, the LTE sensing result may indicate that the entire resource pool is not available for NR sidelink transmission. When such LTE sensing result is received, under certain timeline constraints (see Figure 7 , the NR side link module may discard the NR side link transmission.

[0127] Handling 200 Optional Continue

[0128] In some implementations, the content of the LTE sensing result received in stage 220 may include (i) a reference subframe position or (ii) multiple parameters of one or more parameters indicating a non-preferred resource set from the LTE sidelink. In such implementations, the reference subframe position may include a DFN or a subframe index. In some implementations, the reference subframe is equal to the starting subframe of the resource selection window indicated in the explicit request for the LTE sensing result.

[0129] In some embodiments, one or more parameters indicating a non-preferred resource set from the LTE side link may include: (a) frequency resource locations for initial transmission and retransmission, (b) the lowest index of a subchannel for initial transmission, (c) time location for initial transmission, (d) a time gap between initial transmission and retransmission, (e) resource reservation periodicity, (f) priority, or (g) RSRP measurement results.

[0130] In some implementations, the initial transmission time position can include a time offset from a reference subframe or a number of time slots from a reference time slot / subframe position.

[0131] In some implementations, the non-preferred resource set from the LTE sidelink comes from (a) the UE's own resource reservation, (b) the UE's resource selection (reselection), or (c) another UE's resource reservation.

[0132] In some implementations, the non-preferred resources are occupied resources from the LTE sidelink.

[0133] In some specific implementations, the content of the LTE sensing result includes: (i) SCI format 2-C, in which the provide / request indicator field is 0; or (ii) inter-UE coordination request MAC CE.

[0134] In some implementations, the content of the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission. In such implementations, based on a determination by the NR side link module of the UE that the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission, the NR side link module of the UE may determine to discard the NR side link transmission.

[0135] Although the foregoing content of the LTE sensing result is described above as Figure 2 The optional extension of the process 200 of , but the present disclosure is not limited thereto. On the contrary, the foregoing description of the LTE sensing result may also be optionally applied to Figure 1 Stage 140 Figure 3 Stage 320 or Figure 4 Stage 420.

[0136] Condition-based information sharing from LTE SL module to NR SL module

[0137] Conditional-based LTE sensing result sharing is a process in which the LTE side link module autonomously triggers the sending of LTE sensing results to the NR side link module. In such specific implementations, no explicit request is made to the LTE side link module for the LTE sensing results from the NR side link module. Instead, the autonomous triggering event that causes the LTE side link module to send the LTE sensing results is conditional. Such conditions include periodic triggering of the sending of LTE sensing results by the LTE side link module or aperiodic triggering of the sending of LTE sensing results by the LTE side link module. In some specific implementations, the aperiodic triggering of the sending of LTE sensing results by the LTE side link module may include triggering the sending of LTE sensing results when the LTE side link channel busy rate (CBR) is higher than a threshold.

[0138] For the purposes of this disclosure, the term “autonomously triggered” is intended to mean triggered independently of a request for LTE sensing results from the NR sidelink module.

[0139] Figure 3is a flow chart for an example of a process 300 for a conditional-based NR sidelink procedure that takes into account LTE sidelink sensing results.

[0140] Execution of process 300 begins when the UE NR sidelink module sets up intra-UE information sharing with the LTE sidelink module, where conditions for information sharing are configured (310).

[0141] The UE NR sidelink module may continue execution of process 300 by receiving LTE sensing results from the LTE sidelink module and interpreting these LTE sensing results, and then applying these LTE sensing results to the resource selection process of the UE NR sidelink module (320).

[0142] Figure 4 4 is a flow chart for another example of a process 400 for a conditional NR sidelink procedure taking into account LTE sidelink sensing results. The process 400 will be described as being performed by an NR sidelink module of a UE. The example of a UE is Figure 8 UE805.

[0143] The NR sidelink module of the UE may perform processing 400 (410) by receiving LTE sensing results autonomously provided by the LTE sidelink module of the UE. In some specific implementations, the LTE sidelink module of the UE is configured to periodically provide LTE sensing results to the NR sidelink module of the UE. In other specific implementations, the LTE sidelink module of the UE is configured to non-periodically provide LTE sensing results to the NR sidelink module of the UE. In some specific implementations, the non-periodic triggering may include sending the LTE sensing results when the LTE sidelink channel busy rate (CBR) is higher than a threshold.

[0144] The UE's NR sidelink module may continue to perform process 400 (420) by interpreting the received LTE sensing results autonomously provided by the UE's LTE sidelink module.

[0145] In some implementations, the NR sidelink module may continue to perform process 400 by using the interpreted LTE sensing results during a resource selection process performed by the NR sidelink module of the UE.

[0146] As shown above, process 400 includes receiving LTE sensing results. The content of the LTE sensing results is described above, and these contents can be optionally incorporated as features of process 400. Similarly, the configuration of the UE-internal information sharing process of the NR sidelink module described above can also be included as an optional feature of process 400.

[0147] Figure 55 is a flow chart of an example of a process 500 for the NR resource selection process. The process 500 is based on NR V2XR16 and is described in more detail in TS 38.214 Section 8.1.4. The process 500 is provided so that it can be used as a reference for the relative timing of excluding candidate resources from candidate resources for use as reference Figure 7 The side link resource selection described by the process 700 of FIG. 500 will be described as being performed by, for example, Figure 8 805 of the UE (e.g., TX UE or transmitting UE). In other specific implementations, the UE may be an assistant UE or UE-A in an inter-UE coordination (IUC) resource sharing operation, in which case, Figure 8 UE 805 is still exemplary.

[0148] The UE can determine the total number of candidate resources M total Resource selection window (n+T 1 ,n+T 2 ) to start executing process 500 (510). In this example, n is the time slot used to trigger resource selection / re-evaluation / preemption.

[0149] To T 1 The choice depends on The UE is specifically implemented as follows, wherein The time slots are defined in Table 1, where μ SL is the SCS configuration of the SL BWP. If T 2min is shorter than the remaining packet delay budget (in time slots), then T 2 It depends on the UE implementation, which is subject to T (in time slots). 2min ≤T 2 ≤ Remaining packet delay budget impact; otherwise T 2 is set to the remaining packet delay budget (in time slots). In this example, T2min is an internal parameter which for a given value of prio_TX is set to the corresponding value from the higher layer parameter "sl-SelectionWindowList".

[0150] Table 1: Dependence on subcarrier spacing

[0151]

[0152] The UE can determine the sensing window [nT 0 ,nT proc,0 ] to continue processing 500 (520), where T 0 is configured, and The time slots are defined in Table 2, where μ sL It is the SCS configuration of SL BWP.

[0153] Table 2: Dependence on subcarrier spacing

[0154]

[0155] The UE may continue process 500 by obtaining an initial RSRP threshold (530).

[0156] UE can use S A The process 500 is continued by setting each resource in the resource selection window (540), wherein S A is the set of candidate resources for resource selection.

[0157] If the UE has not sensed in the sensing window with the configured resource reservation period before the candidate time slot, the UE may A The process 500 is continued by excluding the candidate resources (550).

[0158] The UE can determine whether there is a need to A Continuing process 500 with additional candidate resources excluded from SCI (560). Determining whether there are additional candidate resources to be excluded may include: (i) if the UE receives an SCI with a reservation for the candidate resource (562), and (ii) if the RSRP measurement result for the candidate resource is above the RSRP threshold obtained at stage 530 (564), then selecting the candidate resource from SCI (565). A In some implementations, at stage 564, whether to exclude candidate resources from S A The determination to exclude one or more candidate resources may also depend on the data priority level of the reserved SCI. For example, the determination at stage 564 may be performed using different RSRP thresholds based on the data priority level.

[0159] The UE may continue to perform process 500 by determining whether the helper UE has provided or will provide preferred resources or non-preferred resources (570). The helper UE may include, for example, UE-A that can assist the UE via inter-UE coordinated (IUC) sharing of resources. In the context of inter-UE coordinated (IUC) sharing of resources between the helper UE (UE-A) and the UE, the UE will be UE-B.

[0160] The UE may continue to perform process 500 to determine whether the helper UE indicates non-preferred resources, and if the helper UE provides non-preferred resources, the UE may select the non-preferred resource from the S A Non-preferred resources are excluded (580).

[0161] UE can determine S A Is the number of resources in less than X*M? total To continue the process 500 (590). Based on the determination of S at 590 A The number of resources in is less than X*M total , the UE may continue with process 500 by increasing RSRP threshold 592 by 3 dB and continuing with process 500 at stage 530. Alternatively, if at stage 590 the UE determines that S A The number of resources in is not less than X*M total , the UE can report S A To end processing 500 (594).

[0162] Figure 6 600 is a diagram of an example of eliminating candidate resources based on LTE sensing results. Eliminating candidate resources based on LTE sensing results can be performed, for example, in Figure 1 Stage 140 Figure 2 Stage 220 Figure 3 Stage 320 and Figure 4 is performed in stage 420 of the present invention.

[0163] refer to Figure 6 , the LTE side link module can use the resource sensing window 610 to determine the availability of resources in the LTE resource pool 620. Figure 6 In the example of , the availability of a resource may include whether the resource is reserved. The LTE side link module may respond to an explicit request (e.g. Figure 1 Processing 100 or Figure 2 200) or autonomously based on satisfying a trigger condition (e.g. Figure 3 Processing 300 or Figure 4 400) and starts the LTE sensing process.

[0164] The LTE sidelink module can provide LTE sensing results, which include sensing window information and information related to the LTE resource pool 620, such as the time window of LTE sidelink sensing 610, the time window [n+T 1 ,n+T 2 ], resource pool index, etc.

[0165] The NR sidelink module may interpret the received LTE sensing results to determine the availability of LTE resources in the LTE resource pool 620 for resource selection within the NR resource selection window 630. Interpreting the received LTE sensing results may include, for example, identification of NR sidelink resources that overlap in time and frequency with the indicated LTE sidelink reserved resources. In this example, resources 622 are reserved in the LTE resource pool 620 during the NR resource selection window 630. Therefore, in such specific implementations, the LTE sidelink reserved resources 622 are excluded from the set of candidate resources to be used by the NR sidelink module for resource selection.

[0166] NR sidelink resource selection (reselection) with LTE sidelink information

[0167] NR sidelink resource selection (reselection) with LTE sidelink sensing results Figure 1 Stage 140 Figure 2 Stage 220 Figure 3 Stage 320 and Figure 4 In the stage 420 of NR sidelink resource selection (reselection), the NR sidelink resources that overlap with the indicated LTE sidelink reserved resources in time and frequency are excluded from the candidate resource set in the NR sidelink resource selection (reselection) process. These NR resources that overlap with the indicated LTE sidelink reserved resources in time and frequency may be referred to herein as determined overlapping resources. The same resource exclusion described herein also applies to the NR sidelink resource re-evaluation or preemption check process.

[0168] Once such overlapping resources are determined, the NR sidelink module physical layer is in the NR resource selection (e.g. Figure 5 During the process 500 of excluding the determined overlapping resources from the candidate resource set. In some specific implementations, for example, Figure 5 After stage 540 (which corresponds to step (4) of TS 38.214 section 8.1.4), the determined overlapping resources may be excluded from the set of candidate resources for resource selection.

[0169] In some specific implementations, for example, Figure 5 After stage 550 (which corresponds to step (5) of TS 38.214 section 8.1.4), the determined overlapping resources may be excluded from the set of candidate resources for resource selection.

[0170] In some specific implementations, for example, Figure 5 After stage 560 (which corresponds to step (6) of TS 38.214 section 8.1.4), the determined overlapping resources may be excluded from the set of candidate resources for resource selection.

[0171] In some specific implementations, for example, Figure 5 After stage 570 (which corresponds to step (6a) of TS 38.214 section 8.1.4), the determined overlapping resources may be excluded from the set of candidate resources for resource selection.

[0172] In some specific implementations, for example, Figure 5 After stage 580 (which corresponds to step (6b) of TS 38.124 section 8.1.45), the determined overlapping resources may be excluded from the set of candidate resources for resource selection.

[0173] In some specific implementations, for example, Figure 5 After stage 590 (which corresponds to step (7) of TS 38.214 section 8.1.4), the determined overlapping resources may be excluded from the set of candidate resources for resource selection.

[0174] If it is not possible to satisfy the set S after excluding resources overlapping with the LTE sidelink shared information A The number of candidate single-slot resources remaining in total , whether to consider the received shared information to meet this requirement depends on the specific implementation of the UE.

[0175] Figure 7 700 is a flow chart of an example of a process 700 for eliminating candidate resources based on LTE sensing results. The process 700 will be described as being performed by an NR sidelink module of a UE. An example of a UE is Figure 8 UE805.

[0176] The NR sidelink module of the UE may begin executing process 700 (710) by determining an NR sidelink resource base that overlaps with the indicated LTE sidelink resources.

[0177] The NR sidelink module of the UE can select a candidate resource set (S A ) to continue processing 700 (720) by excluding the determined resource set.

[0178] In some implementations, the predetermined time is the time at which S A After the stage of setting up the resource set in the NR resource selection window.

[0179] In some implementations, the predetermined time is after a stage of the NR resource selection procedure where the UE selects a resource from the S if the UE does not sense the candidate resource in a sensing window with a configured resource reservation period before the candidate time slot. A Exclude candidate resources from the .

[0180] In some implementations, the predetermined time is after the stage in the NR resource selection process at which the UE determines to exclude the candidate resources from the SA (i) if the UE receives a reserved SCI with the candidate resources, and (ii) if the RSRP measurement result for the candidate resources is higher than the obtained RSRP threshold.

[0181] In some implementations, the predetermined time is after a stage in the NR resource selection process where the UE determines whether the helper UE has provided or will provide preferred resources or non-preferred resources.

[0182] In some implementations, the predetermined time is after a stage in the NR resource selection process where the UE excludes from the SA one or more non-preferred resources provided by the helper via inter-UE coordination information. In some implementations, the predetermined time is after a stage in the NR resource selection process where it is determined whether the number of resources in the SA is less than X*Mtotal before continuing with the NR resource selection process, where Mtotal is equal to the number of candidate single-slot resources and X is equal to a specific percentage. In some implementations, X can have possible values ​​of 20%, 30%, or 50%, where the value of X is configured by the resource pool. In some implementations, different values ​​of X can be configured based on the data priority value ("prio_TX").

[0183] Figure 8 is a diagram of an example of a wireless communication system 800 according to some specific implementations. Note that Figure 8 The system is just one example of a possible system, and those features of the present disclosure may be implemented in other wireless communication systems.

[0184] The following description is provided for an example communication system 800 operating in conjunction with a fifth generation (5G) network as provided by the 3rd Generation Partnership Project (3GPP) Technical Specification (TS). However, the example implementation is not limited in this regard, and the described implementation may be applied to other networks that may benefit from the principles described herein, such as 3GPP Long Term Evolution (LTE) networks, Wi-Fi or Worldwide Interoperability for Microwave Access (WiMax) networks, etc. In addition, other types of communication standards are also possible, including future 3GPP systems (e.g., sixth generation (6G)) systems, IEEE 802.16 protocols (e.g., WMAN, WiMAX, etc.), etc. Although various aspects may be described herein using terms typically associated with 5G NR, various aspects of the present disclosure may be applied to other systems, such as 3G, 4G, and / or systems after 5G (e.g., 6G).

[0185] As shown, the communication system 800 includes a plurality of user devices. As used herein, "user device" may generally refer to a device associated with a mobile participant or traffic participant in the communication system 800, such as a mobile (capable of moving) communication device, such as a vehicle and a pedestrian user equipment (PUE) device. More specifically, the V2X communication system 800 includes two UEs 805 (UE 805-1 and UE 805-2 are collectively referred to as "UE 805"), two base stations 810 (base station 810-1 and base station 810-2 are collectively referred to as "base station 810"), two cells 815 (cell 815-1 and cell 815-2 are collectively referred to as "cell 815"), and one or more servers 835 in a core network (CN) 840 connected to the Internet 845.

[0186] As shown, some user equipments may be able to communicate directly with each other, i.e., without intermediate infrastructure equipment (such as base station 810-1). As shown, UE 805-1 may communicate directly with UE 805-2 (e.g., V2X-related communications). Similarly, UE 805-2 may communicate directly with UE 805-2. Such peer-to-peer communication may utilize a "side link" interface such as a PC5 interface. In some specific implementations, the PC5 interface supports direct cellular communication between user equipments (e.g., between UE 805), while the Uu interface supports cellular communication with infrastructure equipment (such as a base station). For example, UE 805 may use the PC5 interface for radio resource control (RRC) signaling exchange between UEs. The PC5 / Uu interface is used only as an example, and PC5 as used herein may represent various other possible wireless communication technologies that allow direct side link communication between user equipments, while Uu may represent cellular communication between user equipments and infrastructure equipment (such as a base station).

[0187] The PC5 interface may alternatively be referred to as the SL interface and may include one or more logical channels, including but not limited to a physical sidelink control channel (PSCCH), a physical sidelink shared channel (PSSCH), a physical sidelink discovery channel (PSDCH), and a physical sidelink broadcast channel (PSBCH). In some examples, the SL interface may operate on an unlicensed spectrum (e.g., in the unlicensed 5 gigahertz (GHz) and 6 GHz bands) or a (licensed) shared spectrum.

[0188] In some implementations, the UE 805 may be a physical hardware device capable of running one or more applications, capable of accessing network services via one or more radio links 820 with a corresponding base station 810, and capable of communicating with each other via side links 825. The links 820 may allow the UE 805 to send and receive data from the base station 810 providing the links 820. The side links 825 may allow the UE 805 to send and receive data with each other. The side links 825 between the UEs 805 may include a communication channel for transmitting data from UE 805-1 to UE 805-2 (and vice versa) and / or between the UE 805 and the UE type RSU ( Figure 8 One or more channels for transmitting information between the two devices (not shown) (and vice versa).

[0189] In some implementations, the channel may include a physical sidelink broadcast channel (PSBCH), a physical sidelink control channel (PSCCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), a physical sidelink feedback channel (PSFCH), and / or any other similar communication channel. The PSFCH carries feedback related to successful or failed reception of sidelink transmissions. The PSSCH may be scheduled by sidelink control information (SCI) carried in the sidelink PSCCH. The SCI in NR V2X is transmitted in two phases. The Phase 1 SCI in NR V2X is carried on the PSCCH, while the Phase 2 SCI is carried on the corresponding PSSCH. For example, the 2-phase SCI may be used in the following situations: by applying the 1st SCI for sensing and broadcast communication purposes, and applying the 2nd SCI carrying the remaining information to data scheduling for unicast / multicast data transmissions.

[0190] In some implementations, the side link 825 is established through an initial beam pairing process. In this process, the UE 805 identifies (e.g., using a beam selection process) one or more potential beam pairs that can be used for the side link 825. The beam pair includes a transmitter beam from a transmitter UE (e.g., UE 805-1) to a receiver UE (e.g., UE 805-2) and a receiver beam from a receiver UE to a transmitter UE. In some examples, the UE 805 sorts one or more potential beam pairs. Subsequently, the UE 805 may select one of the one or more potential beam pairs for the side link 825 based on the sorting.

[0191] As stated, between two or more UEs 805 or between a UE 805 and a UE type RSU ( Figure 8The air interface between the base stations 810 and 805 (not shown) may be referred to as a PC5 interface. In order to send data to / receive data from / to one or more eNBs 810 or UE 805, the UE 805 may include a transmitter / receiver (or alternatively, a transceiver), a memory, one or more processors, and / or other similar components that enable the UE 805 to operate in accordance with one or more wireless communication protocols and / or one or more cellular communication protocols. The UE 805 may have multiple antenna elements that enable the UE 805 to maintain multiple links 820 and / or side links 825 to send data to / from multiple base stations 810 and / or multiple UEs 805. For example, as Figure 8 As shown in , UE 805 can be connected to base station 810-1 via link 820 and simultaneously connected to UE 805-2 via side link 825.

[0192] In some implementations, UE 805 is configured to use a resource pool for sidelink communications. The sidelink resource pool may be divided into multiple time slots, frequency channels, and frequency subchannels. In some examples, UE 805 is synchronized and performs sidelink transmission aligned with time slot boundaries. It may be desirable for the UE to select several time slots and subchannels for transmission of a transport block. In some aspects, the UE may use different subchannels to transmit a transport block across multiple time slots within its own resource selection window, which may be determined using packet delay budget information.

[0193] In some implementations, the communication system 800 supports different types of transmission, including unicast, broadcast, and groupcast (or multicast) communications. Unicast refers to direct communication between two UEs. Broadcast refers to communication broadcasted by a single UE to multiple other UEs. Groupcast refers to communication transmitted from a single UE to a set of UEs that meet a certain condition (e.g., as members of a specific group).

[0194] In some specific implementations, UE 805 is configured to perform a side link beam failure recovery process. The V2X communication system 800 may enable or disable support for a side link beam failure recovery process in UE 805. More specifically, the V2X communication system 800 may enable or disable support for each resource pool or each PC5-RRC configuration (which may depend on UE capabilities). In the side link beam failure recovery process, one UE in UE 805 is designated as a transmitter UE (e.g., UE 805-1), and another UE is designated as a receiver UE (e.g., UE 805-2). For the purposes of this disclosure, the UE that detects a beam failure is designated as a receiver UE, and the other UE is designated as a transmitter UE. More generally, a transmitter UE is a UE that transmits side link data, and a receiver UE is a UE that receives side link data. In addition, although the present disclosure describes a single transmitter UE and a single receiver UE, the present disclosure is not limited to this arrangement and may include more than one transmitter UE and / or receiver UE.

[0195] Fig. 9 900 is a block diagram of an example of a user equipment (UE). Figure 8 UE 805 is similar to and is substantially interchangeable with the UE.

[0196] UE 900 can be any mobile or non-mobile computing device, such as, for example, a mobile phone, a computer, a tablet, an industrial wireless sensor (e.g., microphone, carbon dioxide sensor, pressure sensor, humidity sensor, thermometer, motion sensor, accelerometer, laser scanner, fluid level sensor, inventory sensor, voltage / current meter, actuator, etc.), video monitoring / surveillance equipment (e.g., camera, camcorder, etc.), a wearable device (e.g., a smart watch), or a loose IoT device.

[0197] UE 900 may include a processor 902, RF interface circuitry 904, memory / storage 906, a user interface 908, a sensor 910, a driver circuit 912, a power management integrated circuit (PMIC) 914, antenna structures 916, and a battery 918. The components of UE 900 may be implemented as integrated circuits (ICs), portions of integrated circuits, discrete electronic devices or other modules, logical components, hardware, software, firmware, or a combination thereof. Fig. 9 The block diagram of UE 900 is intended to show a high-level view of certain of the components of UE 900. However, in other implementations, some of the components shown may be omitted, additional components may be present, and different arrangements of the components shown may occur.

[0198] Components of UE 900 may be coupled to various other components via one or more interconnects 920, which may represent any type of interface, input / output, bus (local, system, or extension), transmission line, trace, optical connection, etc., which allows various circuit components (on a common or different chip or chipset) to interact with each other.

[0199] The processor 902 may include processor circuits such as, for example, a baseband processor circuit (BB) 922A, a central processor unit circuit (CPU) 922B, and a graphics processor unit circuit (GPU) 922C. The processor 902 may include any type of circuit or processor circuit that executes or otherwise operates computer-executable instructions (such as program codes, software modules, or functional processes from the memory / storage device 906) to cause the UE 900 to perform operations as described herein.

[0200] In some implementations, the baseband processor circuit 922A may access a communication protocol stack 924 in the memory / storage device 906 to communicate over a 3GPP compatible network. Generally speaking, the baseband processor circuit 922A may access the communication protocol stack to: perform user plane functions at the PHY layer, MAC layer, RLC layer, PDCP layer, SDAP layer, and PDU layer; and perform control plane functions at the PHY layer, MAC layer, RLC layer, PDCP layer, RRC layer, and non-access layer. In some implementations, the PHY layer operations may be additionally / alternatively performed by components of the RF interface circuit 904. The baseband processor circuit 922A may generate or process a baseband signal or waveform that carries information in a 3GPP compatible network. In some implementations, the waveform for NR may be based on cyclic prefix OFDM "CP-OFDM" in the uplink or downlink, and discrete Fourier transform spread OFDM "DFT-S-OFDM" in the uplink.

[0201] The memory / storage 906 may include one or more non-transitory computer-readable media including instructions (e.g., a communication protocol stack 924) that may be executed by one or more processors in the processor 902 to enable the UE 500 to perform various operations described herein. The memory / storage 906 includes any type of volatile or non-volatile memory that may be distributed throughout the UE 900. In some implementations, some of the memory / storage 906 may be located on the processor 902 itself (e.g., L1 cache and L2 cache), while other memory / storage 906 are located outside the processor 902 but can be accessed via a memory interface. The memory / storage 906 may include any suitable volatile or non-volatile memory, such as, but not limited to, dynamic random access memory (DRAM), static random access memory (SRAM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, solid-state memory, or any other type of memory device technology.

[0202] The RF interface circuit 904 may include a transceiver circuit and a radio frequency front end module (RFEM), which allows the UE 900 to communicate with other devices through a radio access network. The RF interface circuit 904 may include various elements arranged in a transmit path or a receive path. These elements may include, for example, switches, mixers, amplifiers, filters, synthesizer circuits, control circuits, etc.

[0203] In the receive path, the RFEM may receive the radiated signal from the air interface via the antenna structure 916 and proceed to filter and amplify the signal (using a low noise amplifier). The signal may be provided to a receiver of the transceiver, which down-converts the RF signal to a baseband signal provided to a baseband processor of the processor 902.

[0204] In the transmit path, the transmitter of the transceiver up-converts the baseband signal received from the baseband processor and provides the RF signal to the RFEM. The RFEM may amplify the RF signal through a power amplifier before the signal is radiated across the air interface via the antenna 916.

[0205] In various implementations, the RF interface circuit 904 may be configured to send / receive signals in a manner compatible with NR access technology.

[0206] Antenna 916 may include antenna elements to convert electrical signals into radio waves to travel through the air and convert received radio waves into electrical signals. These antenna elements may be arranged into one or more antenna panels. Antenna 916 may have an antenna panel that is omnidirectional, directional, or a combination thereof to achieve beamforming and multiple input / multiple output communications. Antenna 916 may include a microstrip antenna, a printed antenna manufactured on the surface of one or more printed circuit boards, a patch antenna, a phased array antenna, etc. Antenna 916 may have one or more panels that are designed for a specific frequency band included in a band in FR1 or FR2.

[0207] The user interface 908 includes various input / output (I / O) devices designed to enable the user to interact with the UE 900. The user interface 908 includes input device circuits and output device circuits. The input device circuit includes any physical or virtual components for accepting input, and in particular includes one or more physical or virtual buttons (e.g., reset button), physical keyboard, keypad, mouse, touch pad, touch screen, microphone, scanner, headset, etc. The output device circuit includes any physical or virtual components for showing information or otherwise delivering information (such as sensor readings, actuator positions, or other similar information). The output device circuit may include any number or combination of audio or visual displays, in particular including one or more simple visual outputs / indicators (e.g., binary state indicators, such as light emitting diodes "LEDs" and multi-character visual outputs), or more complex outputs, such as display devices or touch screens (e.g., liquid crystal displays "LCDs", LED displays, quantum dot displays, projectors, etc.), where the output of characters, graphics, multimedia objects, etc. is generated or produced by the operation of the UE 900.

[0208] Sensor 910 may include a device, module, or subsystem whose purpose is to detect events or changes in its environment and to communicate information about the detected events (sensor data) to some other device, module, subsystem, etc. Examples of such sensors include, among others: an inertial measurement unit including an accelerometer, gyroscope, or magnetometer; a microelectromechanical system or nanoelectromechanical system including a three-axis accelerometer, three-axis gyroscope, or magnetometer; a liquid level sensor; a flow sensor; a temperature sensor (e.g., a thermistor); a pressure sensor; a barometric pressure sensor; a gravity meter; an altimeter; an image capture device (e.g., a camera or a lensless aperture); a light detection and ranging sensor; a proximity sensor (e.g., an infrared radiation detector, etc.); a depth sensor; an ambient light sensor; an ultrasonic transceiver; a microphone or other similar audio capture device; and the like.

[0209] The driver circuit 912 may include software elements and hardware elements for controlling a specific device embedded in the UE 900, attached to the UE 900, or otherwise communicatively coupled to the UE 900. The driver circuit 912 may include separate drivers to allow other components to interact with or control various input / output (I / O) devices that may be present in the UE 900 or connected to the UE. For example, the driver circuit 912 may include: a display driver for controlling and allowing access to a display device, a touch screen driver for controlling and allowing access to a touch screen interface, a sensor driver for obtaining sensor readings of the sensor circuit 928 and controlling and allowing access to the sensor circuit 928, a driver for obtaining an actuator position of an electromechanical component or controlling and allowing access to an electromechanical component, a camera driver for controlling and allowing access to an embedded image capture device, and an audio driver for controlling and allowing access to one or more audio devices.

[0210] The PMIC 914 may manage power provided to various components of the UE 900. Specifically, with respect to the processor 902, the PMIC 914 may control power source selection, voltage scaling, battery charging, or DC-DC conversion.

[0211] In some implementations, the PMIC 914 may control or otherwise be part of various power saving mechanisms of the UE 900, including DRX, as discussed herein. The battery 918 may power the UE 900, but in some examples, the UE 900 may be mounted in a fixed location and may have a power source coupled to the grid. The battery 918 may be a lithium-ion battery, a metal-air battery such as a zinc-air battery, an aluminum-air battery, a lithium-air battery, etc. In some implementations, such as in vehicle-based applications, the battery 918 may be a typical lead-acid automotive battery.

[0212] Fig.10 is a block diagram of an example of an access node. Fig.10 An access node 1000 (e.g., a base station or gNB) according to some implementations is illustrated. The access node 1000 may be similar to and substantially interchangeable with the base station 810. The access node 1000 may include a processor 1002, an RF interface circuit 1004, a core network (CN) interface circuit 1006, a memory / storage device circuit 1008, and an antenna structure 1010.

[0213] The components of access node 1000 may be coupled to various other components via one or more interconnects 1012. Processor 1002, RF interface circuitry 1004, memory / storage circuitry 1008 (including communication protocol stack 1014), antenna structures 1010, and interconnects 1012 may communicate with one or more other components. Fig.10Like-named elements are shown and described similarly.For example, processor 1002 may include processor circuits such as, for example, baseband processor circuit (BB) 1016A, central processor unit circuit (CPU) 1016B, and graphics processor unit circuit (GPU) 1016C.

[0214] The CN interface circuit 1006 may provide connectivity to a core network (e.g., a 5GC using a 5th Generation Core Network (5GC) compatible network interface protocol such as a Carrier Ethernet protocol or some other suitable protocol). Network connectivity may be provided to / from the access node 1000 via optical fiber or wireless backhaul. The CN interface circuit 1006 may include one or more dedicated processors or FPGAs for communicating using one or more of the aforementioned protocols. In some implementations, the CN interface circuit 1006 may include multiple controllers for providing connectivity to other networks using the same or different protocols.

[0215] As used herein, the terms "access node", "access point", etc. may be described as equipment that provides radio baseband functionality for data and / or voice connections between a network and one or more users. These access nodes may be referred to as BS, gNB, RAN node, eNB, NodeB, RSU, TRxP or TRP, etc., and may include ground stations (e.g., terrestrial access points) or satellite stations that provide coverage within a geographic area (e.g., a cell). As used herein, the terms "NG RAN node", etc. may refer to an access node 1000 (e.g., a gNB) operating in an NR or 5G system, and the terms "E-UTRAN node", etc. may refer to an access node 1000 (e.g., an eNB) operating in an LTE or 4G system. According to various specific implementations, the access node 1000 may be implemented as one or more of a dedicated physical device such as a macrocell base station and / or a low power (LP) base station for providing a femtocell, picocell or other similar cell with a smaller coverage area, smaller user capacity or higher bandwidth than a macrocell.

[0216] In some implementations, all or part of the access node 1000 may be implemented as one or more software entities running on a server computer as part of a virtual network that may be referred to as a CRAN and / or a virtual baseband unit pool (vBBUP). In these implementations, the CRAN or vBBUP may implement a RAN functional split, such as a PDCP split, where the RRC and PDCP layers are operated by the CRAN / vBBUP and other L2 protocol entities are operated by the access node 1000; a MAC / PHY split, where the RRC, PDCP, RLC, and MAC layers are operated by the CRAN / vBBUP and the PHY layer is operated by the access node 1000; or a "lower PHY" split, where the RRC, PDCP, RLC, MAC layers, and upper portions of the PHY layers are operated by the CRAN / vBBUP and the lower portions of the PHY layers are operated by the access node 1000.

[0217] In the V2X scenario, the access node 1000 may be an RSU or act as an RSU. The term "road side unit" or "RSU" may refer to any traffic infrastructure entity used for V2X communication. The RSU may be implemented in or by a suitable RAN node or a stationed (or relatively stationed) UE, wherein an RSU implemented in or by a UE may be referred to as a "UE-type RSU", an RSU implemented in or by an eNB may be referred to as an "eNB-type RSU", an RSU implemented in or by a gNB may be referred to as a "gNB-type RSU", and so on.

[0218] For ease of description, various components may be described as performing one or more tasks. Such descriptions should be interpreted as including the phrase "configured to". Representing a component as being configured to perform one or more tasks expressly intends that the component does not invoke the interpretation of 35 U.S.C. §112(f).

[0219] For one or more embodiments, at least one of the components shown in one or more of the foregoing figures may be configured to perform one or more operations, techniques, processes, or methods described in the following example section. For example, the baseband circuit described above in conjunction with one or more of the foregoing figures may be configured to operate according to one or more of the examples described below. For another example, the circuits associated with the UE, base station, network element, etc. described above in conjunction with one or more of the foregoing figures may be configured to operate according to one or more of the examples described below in the example section.

[0220] Unless explicitly stated otherwise, any of the above embodiments may be combined with any other embodiment (or combination of embodiments). The foregoing description of one or more specific implementations provides illustration and description, but is not intended to be exhaustive or to limit the scope of the embodiments to the precise form disclosed. Modifications and variations are possible in view of the above teachings or may be obtained from the practice of various embodiments.

[0221] Although the above embodiments have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to include all such variations and modifications.

[0222] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of the authorized use should be clearly stated to users.

Claims

1. A method for sharing information between an LTE sidelink module of a UE and an NR sidelink module of the UE, the method comprising: Receiving, by the NR sidelink module of the UE, an LTE sensing result autonomously provided by the LTE sidelink module of the UE; as well as The received LTE sensing results autonomously provided by the LTE sidelink module of the UE are interpreted by the NR sidelink module of the UE.

2. The method of claim 1, wherein the LTE sidelink module of the UE is configured to periodically provide the LTE sensing results to the NR sidelink module of the UE.

3. The method of claim 1, wherein the LTE sidelink module of the UE is configured to provide the LTE sensing results to the NR sidelink module of the UE non-periodically.

4. The method of claim 1 , wherein the LTE sidelink module of the UE is configured to provide the LTE sensing result to the NR sidelink module of the UE in response to determining that an LTE sidelink channel busy rate (CBR) has met a predetermined threshold.

5. The method of claim 1, wherein if the CBR is greater than the predetermined threshold, then the CBR has satisfied the predetermined threshold.

6. The method according to claim 1, further comprising: The interpreted LTE sensing results are used by the NR sidelink module of the UE during a resource selection process performed by the NR sidelink module of the UE.

7. The method according to claim 1, further comprising: The NR side link module of the UE is configured to share intra-UE information with the LTE side link module of the UE.

8. The method of claim 7, wherein the NR sidelink module of the UE interprets the LTE sensing results based on a configuration of intra-UE information sharing by the NR sidelink module and the LTE sidelink module of the UE.

9. The method according to claim 7, The intra-UE information sharing configured by the NR side link module of the UE and the LTE side link module of the UE includes configuring one or more sensing parameters or one or more resource selection parameters.

10. The method according to claim 9, The one or more sensing parameters or the one or more resource selection parameters include resource allocation mode, sensing window information, RSRP threshold for determining whether a resource is occupied, resource selection information, data priority, C resel or data periodicity.

11. The method according to claim 7, wherein the UE information sharing configured by the NR side link module of the UE and the LTE side link module of the UE includes configuration information sharing information, and The information sharing information includes the information sensing periodicity performed by the NR side link module or the LTE side link module.

12. The method according to claim 7, The UE information sharing configured by the NR side link module of the UE and the LTE side link module of the UE includes configuring resource pool related information, and the resource pool related information includes a resource pool index, LTE resource pool configuration, NR resource pool configuration or NR side link parameter set.

13. The method of claim 1, wherein the content of the LTE sensing result comprises one or more of the following: (i) a reference subframe position or (ii) multiple parameters of one or more parameters indicating a non-preferred resource set from an LTE side link.

14. The method of claim 13, wherein the one or more parameters indicating a non-preferred resource set from an LTE sidelink comprises: (a) the frequency resource location of the initial transmission and retransmission, (b) the lowest index of the subchannel of the initial transmission, (c) the time location of the initial transmission, (d) the time gap between initial transmission and retransmission, (e) resource reservation periodicity, (f) priority, or (g) RSRP measurement result.

15. The method of claim 13, wherein the non-preferred resource set from the LTE side link comes from (a) the UE's own resource reservation, (b) the UE's resource selection (reselection) or (c) another UE's resource reservation.

16. The method of claim 13, wherein the non-preferred resources are occupied resources from the LTE sidelink.

17. The method according to claim 1, wherein the content of the LTE sensing result comprises: (i) SCI format 2-C, where the Offer / Request Indicator field is 0; or (ii) Inter-UE Coordination Request MAC CE.

18. The method according to claim 1, wherein the content of the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission, and The method further comprises: Based on the determination by the NR side link module of the UE that the LTE sensing result indicates that the entire LTE side link resource pool is not available for NR side link transmission, the NR side link module of the UE determines to discard the NR side link transmission.

19. A UE, comprising: one or more computers; as well as One or more memory devices storing instructions which, when executed by the one or more computers, cause the one or more computers to perform the operations of the method according to claims 1 to 18.

20. A computer readable medium storing instructions which, when executed by the one or more computers, cause the one or more computers to perform the operations of claims 1 to 18.

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