User equipment, in particular new radio user equipment, and corresponding method thereof

Abstract

A user equipment, in particular an NR user equipment, comprises a transceiver configured for NR communications using an NR resource pool, where the transceiver is configured to adjust a schedule for a portion of the NR resource pool, where the adjusting schedule is performed according to an adaptive technique.

Description

Technical Field

[0001] Embodiments of the present invention relate to user equipment, in particular NR user equipment, and further embodiments relate to a method for performing NR communication.

[0002] Generally speaking, embodiments of the present invention relate to an aspect of performing communications using NR user equipment in a shared resource pool (e.g., shared with LTE). Background Art

[0003] 4( a ) is a schematic diagram of an example of a terrestrial wireless network 100. As shown in FIG. 4( a ), the wireless network 100 includes a core network 102 and one or more radio access networks RAN1, RAN2, RAN3, RAN4, RAN5, RAN6, RAN7, RAN8, RAN9, RAN102, RAN11, RAN12, RAN13, RAN14, RAN15, N Figure 4(b) is a diagram of the radio access network RAN n Schematic diagram of an example, the network may include one or more base stations gNB1 to gNB5, each base station serving a specific area around the base station (schematically represented by corresponding cells 1061 to 1065). These base stations are provided to serve users within the cell. One or more base stations can serve users in licensed and / or unlicensed frequency bands. The term base station BS refers to a gNB in ​​a 5G network, an eNB in ​​UMTS / LTE / LTE-A / LTE-A-Pro, or simply a BS in other mobile communication standards. Users can be fixed devices or mobile devices. The wireless communication system can also be accessed by mobile or fixed IoT devices connected to the base station or user. Mobile or fixed devices may include physical devices, ground vehicles (such as robots or cars), aircraft (such as manned or unmanned aerial vehicles UAV, the latter also known as drones), buildings and other items or devices in which electronic devices, software, sensors, actuators, etc. are embedded, and network connections that enable these devices to collect and exchange data on existing network infrastructure. Figure 4(b) shows an exemplary view of five cells, however, the RAN n More or fewer such cells may be included, and the RAN nIt is also possible to include only one base station. Figure 4(b) shows two users UE1 and UE2, also known as user equipment or user equipment, which are located in cell 1062 and served by base station gNB2. Another user UE3 served by base station gNB4 is shown in cell 1064. Arrows 1081, 1082 and 1083 schematically represent uplink / downlink connections for sending data from users UE1, UE2 and UE3 to base stations gNB2, gNB4, or for sending data from base stations gNB2, gNB4 to users UE1, UE2, UE3. This can be achieved in a licensed frequency band or an unlicensed frequency band. In addition, Figure 4(b) shows two other devices 1101 and 1102 in cell 1064, such as IoT devices, which can be fixed or mobile devices. Device 1101 accesses the wireless communication system via base station gNB4 to receive and send data, as schematically represented by arrow 1121. Device 1102 accesses the wireless communication system via user UE3, as schematically represented by arrow 1122. The corresponding base stations gNB1 to gNB5 can be connected to the core network 102, for example, via the S1 interface, via corresponding backhaul links 1141 to 1145, which are schematically represented by arrows pointing to "core" in Figure 4(b). The core network 102 can be connected to one or more external networks. The external network can be the Internet, or it can be a private network such as an intranet or any other type of campus network, such as a private WiFi communication system or a 4G or 5G mobile communication system. In addition, some or all of the corresponding base stations gNB1 to gNB5 can be connected to each other via corresponding backhaul links 1161 to 1165, for example, via the S1 or X2 interface or XN interface in NR, which is schematically represented by arrows pointing to "gNBs" in Figure 4(b). The sidelink channel allows direct communication between UEs, also known as device-to-device D2D communication. The sidelink interface in 3GPP is named PC5.

[0004] For data transmission, a physical resource grid may be used. The physical resource grid may include a set of resource elements to which various physical channels and physical signals are mapped. For example, a physical channel may include a physical downlink shared channel PDSCH, a physical uplink shared channel PUSCH, and a physical sidelink shared channel PSSCH carrying user-specific data (also referred to as downlink, uplink, and sidelink payload data), a physical broadcast channel PBCH and a physical sidelink broadcast channel PSBCH carrying, for example, a master information block MIB and one or more system information blocks SIB, one or more sidelink information blocks SLIB (if supported), a physical downlink control channel PDCCH, a physical uplink control channel PUCCH, and a physical sidelink control channel PSCCH carrying, for example, downlink control information DCI, uplink control information UCI, and sidelink control information SCI, and a physical sidelink feedback channel PSFCH carrying a PC5 feedback response. The side chain interface can support 2-level SCI, which refers to a first control region (also called first-level SCI) containing some parts of the SCI, and a second control region (also called second-level SCI) optionally containing a second part of the control information.

[0005] For the uplink, the physical channels may also include a physical random access channel PRACH or RACH, which the UE uses to access the network once it is synchronized and obtains the MIB and SIB. Physical signals may include reference signals or symbols RS, synchronization signals, etc. The resource grid may include frames or radio frames with a specific duration in the time domain and a given bandwidth in the frequency domain. A frame may have a specific number of subframes of a predetermined length, such as 1ms. Depending on the length of the cyclic prefix CP, each subframe may include one or more time slots of 12 or 14 OFDM symbols. The frame may also have a smaller number of OFDM symbols, for example, when utilizing a shortened transmission time interval sTTI or a mini-slot / non-slot based frame structure that includes only a few OFDM symbols.

[0006] The wireless communication system may be any single tone or multi-carrier system using frequency division multiplexing, such as an orthogonal frequency division multiplexing OFDM system, an orthogonal frequency division multiple access OFDMA system, or any other signal based on an inverse fast Fourier transform IFFT, with or without a cyclic prefix CP, such as discrete Fourier transform spread spectrum OFDM (DFT-s-OFDM). Other waveforms may be used, such as non-orthogonal waveforms for multiple accesses, such as filter bank multi-carrier FBMC, generalized frequency division multiplexing GFDM, or universal filtering multi-carrier UFMC. The wireless communication system may operate, for example, according to the LTE-Advanced pro standard, the 5G or NR new radio standard, or the NR-U new radio unlicensed standard.

[0007] The wireless network or communication system described in Figure 4 can be a heterogeneous network with different overlapping networks, for example, a network of macro cells, each macro cell including macro base stations, such as base stations gNB1 to gNB5, and a network of small cell base stations (such as femto or pico base stations) (not shown in Figure 4). In addition to the above-mentioned terrestrial wireless networks, there are also non-terrestrial wireless communication networks NTN, including space-borne transceivers (such as satellites) and / or airborne transceivers (such as unmanned aircraft systems). The non-terrestrial wireless communication network or system can operate in a similar manner to the terrestrial system described above with reference to Figure 4, for example according to the LTE-Advanced Pro standard or the 5G or NR new radio standard.

[0008] In a mobile communication network, for example, in a network as described above with reference to FIG. 4 , such as an LTE or 5G / NR network, there may be UEs that communicate directly with each other through one or more sidelink SL channels (for example, using a PC5 / PC3 interface or WiFi direct). UEs that communicate directly with each other through the sidelink may include vehicles that communicate directly with other vehicles (V2V communication), vehicles that communicate with other entities of the wireless communication network (for example, roadside units RSU, roadside entities such as traffic lights, traffic signs or pedestrians) (V2X communication). Depending on the specific network configuration, the RSU may have the functionality of a BS or a UE. Other UEs may not be vehicle-related UEs and may include any of the above-mentioned devices. These devices may also communicate directly with each other (D2D communication) using SL channels.

[0009] When considering two UEs communicating directly with each other via a sidelink, the two UEs can be served by the same base station, so that the base station can provide sidelink resource allocation configuration or assistance to the UEs. For example, both UEs can be within the coverage area of ​​a base station (one of the base stations shown in Figure 4). This is called the "in-coverage" scenario. Another scenario is called the "out-of-coverage" scenario. It is worth noting that "out-of-coverage" does not mean that the two UEs are not within one of the cells shown in Figure 4, but rather that these UEs

[0010] - may not be connected to the base station, e.g., they are not in RRC connected state, so the UE does not receive any sidelink resource allocation configuration or assistance from the base station, and / or

[0011] - may be connected to the base station, but due to one or more reasons, the base station may not provide sidelink resource allocation configuration or assistance for these UEs, and / or

[0012] -May be connected to base stations that may not support NR V2X services, such as GSM, UMTS, LTE base stations.

[0013] When considering two UEs communicating directly with each other via a sidelink (e.g. using a PC5 / PC3 interface), one of the UEs may also be connected to the BS and may relay information from the BS to the other UE via the sidelink interface and vice versa. Relaying may be performed in the same frequency band (i.e. in-band relaying) or another frequency band may be used (i.e. out-of-band relaying). In the first case, different time slots may be used (e.g. time division duplex TDD systems) to decouple the communications on the Uu and sidelink.

[0014] Figure 5 is a schematic diagram of an in-coverage scenario, where two UEs in direct communication with each other are both connected to a base station. The coverage area of ​​the base station gNB is schematically represented by a circle 200, which substantially corresponds to the cell schematically shown in FIG4 . The UEs in direct communication with each other include a first vehicle 202 and a second vehicle 204, both in the coverage area 200 of the base station gNB. Both vehicles 202, 204 are connected to the base station gNB, and furthermore, they are directly connected to each other via a PC5 interface. The gNB assists in the scheduling and / or interference management of V2V traffic via control signaling over the Uu interface, which is the wireless interface between the base station and the UE. In other words, the gNB provides SL resource allocation configuration or assistance to the UE, and the gNB allocates resources for sidelink V2V communication. This configuration is also referred to as Mode 1 configuration in NR V2X, or Mode 3 configuration in LTE V2X.

[0015] Figure 6 is a schematic diagram of an out-of-coverage scenario, where UEs communicating directly with each other are either not connected to a base station (although they may be physically located within a cell of the wireless communication network), or some or all of the UEs communicating directly with each other are connected to a base station but the base station does not provide SL resource allocation configuration or assistance. Three vehicles 206, 208 and 210 are shown communicating directly with each other via a side link, for example using a PC5 interface. Scheduling and / or interference management of V2V traffic is based on algorithms implemented between vehicles. This configuration is also referred to as a Mode 2 configuration in NR V2X, or a Mode 4 configuration in LTE V2X. As described above, Figure 6 The scenario in is an out-of-coverage scenario, which does not necessarily mean that the corresponding Mode 2 UE in NR or Mode 4 UE in LTE is outside the coverage 200 of the base station, but means that the corresponding Mode 2 UE in NR and / or the corresponding Mode 4 UE in LTE is not served by the base station, is not connected to the base station in the coverage area, or is connected to the base station but does not receive SL resource allocation configuration or assistance from the base station. Figure 5 In the illustrated coverage area 200, in addition to UEs 202 and 204 of NR mode 1 or LTE mode 3, there may also be UEs 206, 208, and 210 of NR mode 2 or LTE mode 4. Figure 6An out-of-coverage UE communicating with the network using relays is schematically shown. For example, UE 210 can communicate with UE 212 via a sidelink, and UE 212 can in turn be connected to the gNB via a Uu interface. Thus, UE 212 can relay information between the gNB and UE 210.

[0016] although Figure 5 and Figure 6 A vehicular UE is shown, but it is worth noting that the described in-coverage and out-of-coverage scenarios also apply to non-vehicle UEs. In other words, any UE, such as a handheld device, that communicates directly with another UE using an SL channel can be both in-coverage and out-of-coverage.

[0017] New Radio and LTE, and in particular the two C-V2X technologies, LTE-V2X and NL-V2X, may sometimes use the same resources.

[0018] Purpose

[0019] Therefore, the object of the present invention is to provide a concept for efficiently sharing resources between two different communication technologies / networks, such as NR and LTE.

[0020] Before discussing the solution, the background will be discussed, especially its shortcomings. The background analysis and shortcomings identification are part of the present disclosure and therefore should not be construed as prior art.

[0021] As mentioned above, there are two C-V2X technologies, namely LTE-V2X and NR-V2X. Both of them operate in separate orthogonal (on resources in time and / or frequency) with some obvious disadvantages.

[0022] The static distribution of resources may result in resources not being used by one technology while the other technology requires more resources. In addition, over time, the transition from LTE to NR will require fewer and fewer resources for LTE. However, the pool size for LTE still needs to be large enough to meet the maximum demand. This will leave a large amount of unused or rarely used resources. Summary of the invention

[0023] The above-mentioned objects are solved by the subject-matter of the independent claims.

[0024] One embodiment provides a user equipment, in particular a new radio user equipment, comprising a transceiver configured for new radio communications using a new radio resource pool, wherein the transceiver is configured to adjust (or restrict) scheduling for a portion of the new radio resource pool, wherein adjusting the scheduling is performed according to an adaptive technique. According to one embodiment, the portion of the NR resource pool overlaps with an LTE resource pool, or generally overlaps with a resource pool of another communication network.

[0025] Embodiments of the present invention are based on the discovery that by dynamically adjusting or limiting the NR resource pool, better use of resources can be advantageously achieved by dynamically sharing between LTE and NR-V2X. To achieve this, conflicts between the two communication networks are avoided.

[0026] Another embodiment provides a method for performing NR communication using an NR resource pool. The method includes the step of adjusting scheduling for a portion of the NR resource pool, wherein adjusting the scheduling is performed according to an adaptive technique.

[0027] According to a further embodiment, the method may be implemented by a computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 schematically illustrates a resource pool that may be shared in frequency and / or time according to an embodiment;

[0029] Figure 2 A block diagram for illustrating embedded sharing is shown (according to an embodiment, a resource pool can be embedded in another resource pool);

[0030] Figure 3a , b and c show schematic block diagrams of modem settings used in user equipment according to an embodiment;

[0031] Figure 4a , b shows a schematic diagram of an example of a ground network to illustrate the background of this embodiment;

[0032] Figure 5 A schematic diagram of a covered scene is shown;

[0033] Figure 6 A schematic diagram showing an out-of-coverage scene; and

[0034] Figure 7 A computer system for use in the context of the embodiments is schematically shown. DETAILED DESCRIPTION

[0035] Hereinafter, embodiments of the present invention will be discussed subsequently with reference to the accompanying drawings, wherein the same reference numerals are given to objects having the same or similar functions so that the descriptions thereof are interchangeable and mutually applicable.

[0036] Figure 1Two different resource pools 1000 and 1001 are shown, which include NR parts 1100 and 1101 and LTE parts 1200 and 1201. As shown, the two parts can be arranged across different time parts (see 1100 and 1200) and / or frequency parts (see 1101 and 1201). For the resource pools 1000 and 1001 shown, the NR resource pool 1100 / 1101 and the LTE resource pool 1200 / 1201 include overlaps with the corresponding other resource pools marked by reference numerals 1150 and 1151. This overlap is also referred to as a shared part.

[0037] It should be noted that the concept is not limited to the overlap of the two resource pools 1150 and 1151 for New Radio and LTE, so it can also be used for overlapping of areas of two different communication technologies / communication standards, where the corresponding resource parts 1100 / 1101 and 1200 / 1201 overlap or partially overlap each other.

[0038] Figure 2 Another principle scenario is shown, showing two corresponding resource pools 1103 and 1203 and 1104 and 1204, respectively, where one resource pool is completely embedded in the other resource pool. In one example, the resource pool of the new radio 1103 defined by time and frequency is significantly larger than the LTE resources 1203, thereby forming a so-called embedded shared resource pool 1153. In another example, the LTE resource pool 1204 drawn in frequency and time is significantly larger than the new radio resource pool 1104, so that the entire new radio resource pool 1104 is embedded to form the embedded shared pool 1154.

[0039] Since the impact on the LTE resource pools (1200, 1201, 1203 and 1204) is limited, according to an embodiment of the present invention, it is proposed to add scheduling for paths 1150, 1151, 1153, 1154 for the new radio resource pools 1100, 1101, 1103 and 1104. Therefore, one embodiment provides a method for performing new radio communications using NR resource pools 1100, 1101, 1103 and 1104. The method includes the main steps of adjusting the scheduling of parts 1150, 1151, 1153 and 1154 of the new radio resource pools 1100, 1101, 1103 and 1104, wherein the adjustment of the scheduling is performed according to an adaptive technique. According to one embodiment, the adjustment device limits parts 1150, 1151, 1153 and 1154. According to an embodiment, the portions 1150 , 1151 , 1153 , and 1154 overlapping with the LTE resource pools 1200 , 1201 , 1203 , and 1204 are adjusted.

[0040] Another embodiment provides a user equipment, in particular a NR user equipment, comprising a transceiver for NR communication considering the use of NR resource pools 1100, 1101, 1103, 1104. Here, the transceiver is configured to adjust the scheduling of the parts 1150, 1151, 1153, 1154 of the new radio resource pools 1100, 1101, 1103, 1104, wherein the adjusting the scheduling is performed according to an adaptive technique.

[0041] The background of the embodiment is that in case an overlap with an LTE RP is detected, the scheduling freedom of the NR modem may be limited. Therefore, according to a further embodiment, the transceiver / new radio modem may perform LTE sensing or LTE RSRP sensing. According to an embodiment, an adaptation technique is performed based on LTE sensing or LTE RSRP sensing, such as restriction as part of the adaptation technique or reselection as part of the adaptation technique. For example, the scheduling restriction may affect only the overlapping path 1150, 1151, 1153, 1154 of the RP where the overlap is detected or the entire RP. Different adaptation techniques will be discussed below. According to an embodiment, the adaptation technique may include one of the following:

[0042] -Adjust resource reselection counter;

[0043] -Adjust resource reservation period;

[0044] - Deactivate certain resources and / or resources belonging to a certain cycle.

[0045] According to an embodiment, one of the above three adaptation techniques or a combination of two or more adaptation techniques may be used.

[0046] Resource reselection counter

[0047] Decrease the resource reselection counter to re-evaluate if the resource is still available and / or reselect a new resource, since the LTE UE will not be aware of the NR transmission. This can be done dynamically according to the standard (e.g., when more LTE UEs are detected, decrease the reselection counter). Or it can be configured or pre-configured. The reselection counter can be adjusted by changing the range of the random number extraction:

[0048] 3> With equal probability in intervals greater than or equal to the resource reservation interval of 100 ms [5,15] or in intervals less than the resource reservation interval of 100 ms Randomly select an integer value in and set SL_RESOURCE-RESELECTION_COUNTER to the selected value;

[0049] One way to achieve this is to apply one or more adaptation factors r to the formula.

[0050] Generally speaking, this means that according to an embodiment, the user equipment may perform an adaptive technique including adjusting or reducing the resource reselection counter. For example, the adjustment and / or reduction may include changing the range of random numbers from which the resource reservation interval is extracted.

[0051] Adjust resource reservation period - limit M2 scheduling in the shared pool to the LTE period

[0052] According to an embodiment: The NR modem can determine or receive the LTE periodicity used in the overlapping LTE RP. The NR modem can then limit the periodicity of the periodic transmission that is also used for LTE. This allows LTE devices to correctly sense and predict NR periodic traffic. Otherwise, different priorities will cause LTE devices to incorrectly predict future transmissions. In addition, such periodicities can also be supported, where at least one of the LTE periodicities is a multiple of the periodicity. This mode requires good LTE sensing information to avoid continuous periodic resource conflicts.

[0053] Generally speaking, the adaptation technique and / or the limiting as part of the adaptation technique and / or the reselection as part of the adaptation technique are performed according to one or more of the following criteria:

[0054] -Presence / absence of LTE sensing information,

[0055] - the number of negative HARQ feedback received,

[0056] - a conflict indicator is received,

[0057] - Resource pool configuration received from the gNB,

[0058] - Received IUC message taking into account LTE sensing information.

[0059] Generally speaking, this means that the user equipment may adapt to a formal adaptation technique including adapting the resource reservation period to the LTE period.According to a further embodiment, the LTE period may be determined and then the adaptation of the resource reservation period may be performed according to the determined LTE period.

[0060] Adjust resource reservation period - limit M2 scheduling in the shared pool to non-LTE period

[0061] According to an embodiment, the NR modem may attempt to avoid consecutive periodic resource conflicts with LTE by selecting or being configured to select only certain periodicities. For example, periodicities with common multiples of the LTE periodicity may be avoided. The disadvantage here is that it is difficult to avoid all conflicts with LTE. However, in this case, the conflicts are not consecutive conflicts with the same LTE UE.

[0062] Generally speaking, this means that according to an embodiment, the UE may perform an adaptation technique including adjusting the resource reservation period to a non-LTE period or only to certain periods that are not used for the corresponding communication network / LTE.

[0063] Deactivate periodic or periodic transmission

[0064] According to an embodiment, the NR modem can avoid using aperiodic or periodic transmissions in a shared RP or a shared portion of an RP. LTE devices cannot predict aperiodic traffic. Therefore, aperiodic NR transmissions significantly increase the probability of collisions in the shared portion of the RP.

[0065] Generally speaking, this means that, depending on the embodiment, the user equipment may perform an adaptation technique that includes deactivating periodic transmissions or deactivating periodic transmissions.

[0066] Deactivate transfers in the shared pool

[0067] According to an embodiment, the NR mode may avoid the shared part (1150, 1151, 1153, 1154) or the RP so as not to cause interference to other LTE devices.

[0068] Including LTE RSRP sensing in M2 candidate resource selection

[0069] According to one embodiment, the NR modem can take into account the LTE RSRP measurement to make its own resource selection. If the LTE RSRP is above a certain threshold, the resource can be considered occupied. This can avoid conflicts with LTE devices.

[0070] According to an embodiment, the shared part may be deactivated based on LTE / LTE RSRP measurements (see Deactivating transmission in the shared part). Note that according to an embodiment, the new radio transceiver may perform the sensing / measurements itself or may have access to the sensing / measurement results, e.g., a so-called collision indication from another UE. According to an embodiment, the adaptive technique and / or the restriction as part of the adaptive technique and / or the reselection as part of the adaptive technique is performed based on feedback from another UE detecting the collision or based on information received from another UE. For example, in case of a collision, the other UE may sense the collision and indicate it to the transmitting UE.

[0071] Reselect resources based on PSFCH feedback

[0072] According to an embodiment, an adaptive technique and / or a limitation as part of an adaptive technique and / or a reselection as part of an adaptive technique is performed according to the determined PSFCH feedback. For example, in case a preconfigured negative HARQ feedback threshold is reached, a resource reselection is triggered.

[0073] According to another embodiment, the adaptation technique may be performed based on or taking into account information other than pre-configuration or information from the gNB, such as DCI, MAC, or RRC signaling.

[0074] In another embodiment, the restrictions described above may be applied only to certain traffic / packets based on one or more criteria:

[0075] L1 and / or L2 prioritization, e.g. applying restrictions to low priority traffic, but not to high priority traffic

[0076] ● Broadcast type, such as unicast, multicast, broadcast

[0077] QoS profile (e.g. PQI, packet delay budget, etc.)

[0078] ● Based on HARQ or blind transmission (PSFCH may not exist in the shared resources)

[0079] L1 and / or L2 destination ID

[0080] ●Initial transmission or retransmission

[0081] ●Whether it is relay traffic or non-relay traffic

[0082] ●Periodicity

[0083] CBR, such as total CBR (total resource usage) or LTE CBR (resource usage by LTE transceiver) or NR CBR (resource usage by NR transceiver)

[0084] In general, this means that, according to an embodiment, the adaptation technique includes restrictions applied according to one or more of the following criteria:

[0085] - L1 and / or L2 priority;

[0086] - Broadcast type;

[0087] -QOS configuration files;

[0088] -HARQ based on blind transmission;

[0089] - L1 and / or L2 destination IT;

[0090] - Initial transmission or retransmission;

[0091] - Relay traffic or non-related traffic;

[0092] - Periodicity; and / or

[0093] -CBR, Total CBR, LTE CBR or NR CBR.

[0094] Note that, depending on the embodiment, shared pool configuration / detection may be used as an input to the adaptation technique. For example, the transceiver may be pre-configured to obtain an RRC configuration from the gNB that includes one or more of the following:

[0095] - Shared pool as part of RP configuration or separate LTE RP configuration (NR UE detection overlap or LTE V2X coexistence assistance information)

[0096] ○Pools can overlap completely or partially

[0097] ■ The shared part of the pool can be restricted to certain priorities and / or periodic and / or aperiodic messages

[0098] ■ Only used when a certain threshold is reached: for example, NR.CBR is above a certain threshold or LTE-CBR is below a certain threshold

[0099] ■If LTE CBR exceeds a certain threshold, avoid

[0100] - Pre-configured priority for sensed LTE resources.

[0101] - Multiple pre-configured priorities for sensing LTE resources according to one or more criteria (e.g. depending on NR transmission priority or CBR).

[0102] In general, this means that the transmission can be configured to use an adaptive technique based on the pool configuration or pool pre-configuration. To this end, the transceiver can extract information from the configuration information to form / select an adaptive technique. An exemplary RRC configuration is shown below:

[0103] SL-BWP-PoolConfig

[0104] The IE SL-BWP-PoolConfig is used to configure NR sidelinkcommunication resource pool. / / IE SL BWP PoolConfig is used to configure NR sidelink communication resource pool.

[0105] SL-BWP-PoolConfig information element / / SL BWP pool configuration information element

[0106]

[0107] about Figure 3a , 3band 3c, showing different transceivers 3000, 3001 and 3002. Figure 3a The transceiver 3000 includes an LTE transceiver 3020 and an NR transceiver 3010. The LTE transceiver 3020 may be used to perform LTE sensing. Both transceivers 3010 and 3020 exchange information by using inter-modem coordination messages.

[0108] Figure 3b The transceiver 3001 includes a mature NR+LTE-supporting transceiver 3050. Here, LTE sensing can be performed internally by the transceiver 3050.

[0109] Figure 3c The transceiver 3002 includes an NR transceiver 3060 with limited LTE sensing capability. Therefore, the transceiver 3060 can perform LTE sensing. Therefore, according to an embodiment, the transceiver can perform adaptive techniques based on LTE sensing information obtained by another transceiver unit 3020 or internal transceivers 3050 and 3060 capable of LTE sensing.

[0110] According to an embodiment, in order to be aware of LTE transmission, the NR modem may obtain information through one or more of the following methods.

[0111] One example is the above-mentioned LTE sensing / using LTE sensing information.

[0112] The sensing information may be obtained as assistance information from a separate LTE sensing modem (eg, as a resource usage bitmap) or an AIM (preferred / non-preferred resource set).

[0113] o Handle LTE assistance information as internal inter-UE coordination information.

[0114] oObtained by a UE supporting both LTE and NR or a co-located LTE UE.

[0115] Additionally, other information, such as the priority of the LTE transmission or the CBR of the shared pool, can be reported to the NR transceiver.

[0116] Additionally or alternatively, LTE sensing may be performed externally, for example, by another transceiver of another user equipment or a transceiver of another network entity such as a gNB. Thus, according to an embodiment, a transceiver with NR and LTE capabilities takes into account LTE sensing to inform another UE of potential future or past conflicts. This may be used by another UE to perform resource reselection taking into account IUC and avoid occupying resources.

[0117] According to another embodiment, the transceiver may include LTE sensing to take into account IUC messages when determining a set of preferred and / or non-preferred resources.

[0118] This may be included even when sending IUC messages to legacy UEs that are not aware of LTE traffic, such as NR Rel.17 UEs.

[0119] In general, depending on the user equipment / NR user equipment, it should be noted that according to one embodiment, it may include at least limited LTE sensing capabilities. For example, the UE may include an NR+LTE transceiver or an NR transceiver unit and an LTE transceiver unit, which may be configured to exchange information using exchange coordination. According to an embodiment, the transceiver may be configured for LTE sensing (e.g., potential / future transmissions / collisions) and notify the internal NR transceiver unit of the transceiver using exchange coordination.

[0120] Another embodiment relates to a user equipment without an adaptive technique comprising at least limited sensing. Here, three possibilities are possible: NR+LTE transceiver or LTE transceiver unit combined with NR transceiver unit and NR transceiver unit with limited LTE sensing unit.

[0121] Additionally, the UE or RSU may broadcast inter-UE coordination messages to avoid LTE traffic (non-preferred set) and / or send post-collision indications between LTE / NR transmissions.

[0122] In general, depending on the embodiment, an IOC message or broadcast may be used to notify an external NR transceiver.

[0123] In another embodiment, the UE may receive an LTE resource usage map from another transceiver (such as another UE, RSU, GL UE, or gNB).

[0124] Additionally, other information may be reported, such as the priority of the LTE transmission or the CBR of the shared pool.

[0125] According to an embodiment, the transceiver is configured to use an NR resource pool for NR communication, wherein the transceiver is configured for LTE sensing and an internal NR transceiver of the transceiver is notified using switching coordination, or an external NR transceiver is notified using an IOC message or broadcast.

[0126] Overview

[0127] The embodiments of the present invention have been described above in detail, and each embodiment and aspect may be implemented separately, or two or more embodiments or aspects may be implemented in combination.

[0128] Depending on the embodiment, the wireless communication system may include a terrestrial network or a non-terrestrial network, or a network or network segment using an aerial vehicle or a marine vehicle or an underwater vehicle or a space-borne vehicle as a receiver, or a combination thereof.

[0129] According to an embodiment, the user equipment UE described in this document can be one or more of the following: a power-limited UE or a handheld UE, such as a UE used by pedestrians, called a vulnerable road user VRU, or a pedestrian UE P-UE, an animal tracking UE, or a body-mounted or handheld UE used by public safety personnel and first responders, also called a public safety UE PS-UE or an IoT UE, for example, a sensor, actuator or UE provided in a campus network that performs repetitive tasks and requires periodic input from a gateway node, or a mobile terminal, or a fixed terminal, or a cellular IoT UE or a vehicle-mounted UE, or a vehicle group leader GL UE or IoT, or a narrowband IoT NB-IoT device, or a WiFi non-access point STA non-AP STA, such as 802.11ax or 802.11be, or ground vehicle, or aircraft, or drone, or mobile base station, or roadside unit, or building, or any other item or device with a network connection that enables the item / device to communicate using a wireless communication network (such as a sensor or actuator), or any other item or device with a network connection that enables the item / device to communicate using a sidechain wireless communication network such as a sensor or actuator, or any network entity with sidechain functionality.

[0130] The base station BS described in this article can be implemented as a mobile or non-mobile base station, and can be a macro cell base station, or a small cell base station, or a central unit of a base station, or a distributed unit of a base station, or an integrated access and backhaul IAB node, or a roadside unit, or a UE, or a group leader GL, or a relay, or a remote radio head, or an AMF, or an SMF, or a core network entity, or a mobile edge computing entity, or a network slice in the context of NR or 5G core, or a WiFi AP STA (such as 802.11ax or 802.11be) or one or more of any transmission / reception points TRP, enabling an item or device to communicate using a wireless communication network, and the item or device is provided with a network connection to communicate using the wireless communication network.

[0131] Although some aspects of the described concepts are described in the context of an apparatus, it is clear that these aspects also represent a description of a corresponding method, where a block or device corresponds to a method step or a feature of a method step. Similarly, aspects described in the context of a method step also represent a description of a corresponding block or article or a feature of a corresponding apparatus.

[0132] The various elements and features of the present invention can be implemented in hardware using analog and / or digital circuits, in software, by executing instructions through one or more general or special processors, or as a combination of hardware and software. For example, embodiments of the present invention can be implemented in the environment of a computer system or another processing system. Figure 7 An example of a computer system 600 is shown. The units or modules and the steps of the methods performed by the units can be executed on one or more computer systems 600. The computer system 600 includes one or more processors 602, such as a dedicated or general-purpose digital signal processor. The processor 602 is connected to a communication infrastructure 604, such as a bus or a network. The computer system 600 includes a main memory 606, such as a random access memory RAM, and a secondary memory 608, such as a hard drive and / or a removable storage drive. The secondary memory 608 can allow computer programs or other instructions to be loaded into the computer system 600. The computer system 600 can also include a communication interface 610 to allow software and data to be transmitted between the computer system 600 and external devices. The communication can be electronic, electromagnetic, optical or other signals that can be processed by the communication interface. The communication can use wires or cables, optical fibers, telephone lines, cellular phone links, RF links and other communication channels 612.

[0133] The terms "computer program medium" and "computer-readable medium" generally refer to tangible storage media, such as a removable storage unit or a hard disk installed in a hard drive. These computer program products are means for providing software to the computer system 600. Computer programs, also referred to as computer control logic, are stored in the main memory 606 and / or the secondary memory 608. The computer program may also be received via the communication interface 610. Executing the computer program enables the computer system 600 to implement the present invention. In particular, executing the computer program enables the processor 602 to implement the process of the present invention, such as any method described herein. Therefore, such a computer program may represent a controller of the computer system 600. In the case of implementing the present disclosure using software, the software may be stored in a computer program product and loaded into the computer system 600 using a removable storage drive, an interface (such as the communication interface 610).

[0134] The implementation in hardware or software can be performed using a digital storage medium, such as cloud storage, floppy disk, DVD, Blu-ray, CD, ROM, PROM, EPROM, EEPROM or flash memory, on which electronically readable control signals are stored, which cooperate or can cooperate with a programmable computer system to perform the corresponding method. Therefore, the digital storage medium can be computer readable.

[0135] Some embodiments according to the invention comprise a data carrier having electronically readable control signals, which are capable of cooperating with a programmable computer system, such that one of the methods described herein is performed.

[0136] Generally, the embodiments of the present invention can be implemented as a computer program product with a program code, wherein the program code is used to perform one of the methods when the computer program product runs on a computer. The program code can be stored on a machine-readable carrier, for example.

[0137] Other embodiments comprise the computer program for performing one of the methods described herein, stored on a machine readable carrier. In other words, therefore, one embodiment of the inventive method is a computer program having a program code for performing one of the methods described herein when it runs on a computer.

[0138] Therefore, another embodiment of the method of the present invention is a data carrier, or a digital storage medium or a computer readable medium, on which is recorded a computer program for performing one of the methods described herein. Therefore, another embodiment of the method of the present invention is a data stream or a signal sequence representing a computer program for performing one of the methods described herein. The data stream or signal sequence can, for example, be configured to be transmitted via a data communication connection (e.g., via the Internet). Another embodiment includes a processing device, such as a computer or a programmable logic device, which is configured to or is suitable for performing one of the methods described herein. Another embodiment includes a computer having a computer program for performing one of the methods described herein installed thereon.

[0139] In some embodiments, a programmable logic device, such as a field programmable gate array, can be used to perform some or all of the functions of the methods described herein. In some embodiments, a field programmable gate array can cooperate with a microprocessor to perform one of the methods described herein. Generally, these methods are preferably performed by any hardware device.

[0140] The above embodiments are only used to illustrate the principles of the present invention. It should be understood that modifications and variations of the arrangements and details described herein will be apparent to other persons skilled in the art. Therefore, it is intended that the scope of the present invention be limited only by the scope of the patent claims to be filed, and not by the specific details provided herein by describing and explaining the embodiments.

Claims

1. A user equipment (3000, 3001, 3002), in particular a NR user equipment, comprising a transceiver (3020, 3050, 3060) configured for NR communication using an NR resource pool (1101, 1103, 1104), wherein the transceiver (3020, 3050, 3060) is configured to adjust the scheduling of resources for transmission for a portion (1151, 1153, 1154) of the NR resource pool (1101, 1103, 1104), wherein adjusting the scheduling of resources for the transmission is performed according to an adaptive technique.

2. The user equipment (3000, 3001, 3002) according to claim 1, wherein the portion (1151, 1153, 1154) overlaps with an LTE resource pool (1201, 1203, 1204) or a resource pool of another communication network.

3. The user equipment (3000, 3001, 3002) according to claim 1 or 2, wherein the adaptive technology comprises one of the following technologies: -Adjust resource reselection counter; -Adjust resource reservation period; - Deactivate certain resources and / or resources belonging to a certain cycle.

4. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptive technique comprises adjusting or reducing a resource reselection counter, the resource reselection counter being used to trigger reselection of resources for periodic transmission; and / or wherein adjusting and / or reducing comprises changing a range of random numbers from which the resource reselection counter is drawn; and / or The range parameter of the transmission depends on a reservation interval of resources used for the periodic transmission.

5. A user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptive technique comprises adjusting the resource reservation period (e.g., a resource reservation period configured to be used in the NR resource pool or a shared part of the NR resource pool) to an LTE period (e.g., preconfigured for an LTE resource pool), or determining the LTE period (e.g., by sensing a currently used period for LTE transmissions) and adjusting the resource reservation period according to the determined LTE period.

6. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptation technique comprises adjusting the resource reservation period to a non-LTE period or only to certain periods not used for LTE.

7. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptation technique comprises deactivating periodic transmissions or deactivating aperiodic transmissions.

8. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptation technique and / or the limitation as part of the adaptation technique and / or the reselection as part of the adaptation technique are performed based on LTE sensing or LTE RSRP sensing.

9. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptive technique and / or the limitation as part of the adaptive technique and / or the reselection as part of the adaptive technique is performed according to one or more of the following criteria: -Presence / absence of LTE sensing information, - the number of negative HARQ feedback received, - a conflict indicator is received, - Resource pool configuration received from the gNB, - Received IUC message taking into account LTE sensing information.

10. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the transceiver (3020, 3050, 3060) is configured to perform LTE sensing or LTE RSRP sensing or energy measurement or to receive information about LTE measurements / LTE RSRP measurements.

11. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein an adaptive technique and / or limitation as part of an adaptive technique and / or reselection as part of an adaptive technique is performed depending on the determined PSFCH feedback.

12. A user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptive technique and / or the limitation as part of the adaptive technique and / or the reselection as part of the adaptive technique are performed based on feedback from another UE (e.g. detection of a conflict or decoding failure) or information received from another UE.

13. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptive technique and / or the limitation as part of the adaptive technique and / or the reselection as part of the adaptive technique is performed in dependence on receiving a conflict indication or an IUC message from another UE.

14. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptation technique is performed based on or taking into account information in a pre-configuration or information from a gNB (e.g. DCI, MAC or RRC signaling).

15. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptation technique is based on LTE sensing information obtained by another transceiver unit of the user equipment (3000, 3001, 3002), or by another UE or by another network entity.

16. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the adaptation technique comprises restrictions applied according to one or more of the following criteria: - L1 and / or L2 priority; - Broadcast type; -QOS configuration files; -HARQ based on blind transmission; - L1 and / or L2 destination IT; - Initial transmission or retransmission; - Relay traffic or non-related traffic; - Periodicity; and / or - CBR, Total CBR, LTE CBR or R CBR.

17. The user equipment (3000, 3001, 3002) according to one of the preceding claims, wherein the UE comprises limited LTE sensing capabilities.

18. User equipment (3000, 3001, 3002) according to any one of claims 1 to 16, wherein the UE comprises an NR+LTE transceiver (3050), or wherein the UE comprises an NR transceiver (3020) unit and an LTE transceiver unit, in particular an NR transceiver unit and an LTE transceiver unit configured to exchange information using exchange coordination.

19. The user equipment (3000, 3001, 3002) of any of the preceding claims, wherein the transceiver (3020, 3050, 3060) is configured to perform LTE sensing (e.g., potential / future transmissions or past collisions) and to notify an internal NR transceiver unit of the transceiver (3020, 3050, 3060) using exchange coordination, or to notify an external NR transceiver using IUC messages or broadcasts.

20. A user equipment (3000, 3001, 3002), in particular a NR user equipment, comprising a transceiver (3020, 3050, 3060) configured for NR communication using an NR resource pool (1101, 1103, 1104), wherein the transceiver (302, 3050 and 3060) is configured to perform LTE sensing (e.g., potential / future transmissions or past conflicts) and to notify an internal NR transceiver of the transceiver using exchange coordination, or to notify an external NR transceiver using an IUC message or broadcast.

21. The user equipment (3000, 3001, 3002) according to any one of claims 1 to 20, wherein the user equipment (3000, 3001, 3002) is from the following group, comprising: Power-constrained UEs, handheld UEs, UEs used by pedestrians, vulnerable road users VRU or pedestrian UE P-UEs, body-mounted or handheld UEs used by public safety personnel and first responders, IoT UEs, sensors, actuators or UEs provided in campus networks that perform repetitive tasks and require regular input from a gateway node, or mobile terminals, or fixed terminals or cellular IoT UEs or vehicle-mounted UEs, or vehicle team leader UEs or IoT, or narrowband IoT NB-IoT devices or WiFi non-access point STA non-AP STA, such as 802.11ax or 802.11be, or ground vehicles, or aircraft, or drones, or mobile base stations, or roadside units, or buildings, or any other item or device with a network connection that enables the item / device to communicate using a wireless communication network, sensor or actuator, or any other item or device with a network connection that enables the item / device to communicate using a sidechain wireless communication network such as a sensor or actuator, or any network entity with sidechain functionality.

22. A communication system comprising a user equipment (3000, 3001, 3002) according to any one of claims 1 to 21 using an NR resource pool (1101, 1103, 1104).

23. A method for NR communication using an NR resource pool (1101, 1103, 1104), comprising the following steps: Adjusting the scheduling of a portion (1151, 1153, 1154) of the NR resource pool (1101, 1103, 1104), wherein adjusting the scheduling is performed according to an adaptive technique.

24. A computer program for executing the method according to claim 23 when run on a computer.

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